KURARITY Brochure

a novel acrylic block copolymer
〈 KURARITY TM 〉General Introduction
1st Ed.2014.05 E
KURARAY &
its elastomer business
Evolution of
Kuraray’s elastomers
Kuraray’s
development
1926
1950
1926
Established in
Okayama, Japan
1950 <KURALON TM> (PVA fiber)/
PVA production started
Kuraray's
Methaclyrate Business
1958
POVAL(PVA) for
market sales
1960
< KURARITY TM>
Mw distribution(Mw/Mn=1.13)
<KURARITY TM> is a novel acrylic
copolymer based on
Kuraray.s two main stream
technologies.
2003-
1959
1964
MMA monomer
1960
・Polyester staple fiber
・<CLARINO TM>
(man-made leather)
PMMA Cast sheets
Elastomers Business
1970
10 3
1972 1972
Isoprene rubber
(now terminated)
<EVAL TM> (EVOH)
1978
1972
1973
Liquid isoprene
rubber
PMMA resin (<PARAPET TM>)
1980
<KURARITY TM>’s
development
1990 1990
1998
1994
<SEPTON TM > (HSBC)
<VECTRAN TM > (PAR)
<KURALON K-Ⅱ
TM >
(PVA Gel)
1990-
1999 AL based catalyst invented
<HYBRAR TM > (HSBC)
1999
<GENESTAR TM > (PA9T)
2000
2001
<SEPTON TM >V series
(Hard block
cross-linkable HSBC)
10 4
10 5
Molecular Weight
10 6
Anionic living polymerization
by an unique catalyst system
〈Features〉
●Extremely low residual monomer or oligomer
●Extremely low odor
●Low hardness without plasticizer
PMMA Extruded sheets
1974
Dental materials
1990
PnBA
polymerized
by AIBN
(Mw/Mn=1.56)
3rd Generation
“Hydrogenated Styrenic
Block Copolymer” (HSBC)
■ < SEPTON TM >
■ < HYBRAR TM >
Advanced anionic
living polymerization
+ Hydrogenation
2003
Pilot plant for
<KURARITY TM >established
2003
<SEPTON TM > Q series
(special HSBC)
2010
19741990
2011
< KURARITY TM >
commercialized
2nd Generation
“Isoprene based Rubbers”
■ Trans- Polyisoprene (TP) ■ Liquid Isoprene Rubber (L-IR)
Anionic living polymerization
Frankfurt(Sales for Europe, Africa and the Middle East)
Houston
( Manufacturing for < SEPTON
and Sales for North, Central,
and South America)
TM
>
Shanghai
(Sales for China)
Niigata
(Manufacturing
for < KURARITY TM>)
The global reach of Kuraray’
s elastomers business
Plant locations in Japan
1
19721974
Tokyo
(Elastomer Business
World HQ and Sales for
Japan and Asia Pacific)
Tsukuba
(R&D for
< KURARITY
1st Generation
■
Isoprene Rubber (IR)*
for Natural rubber substitution
(*now terminated)
Ziegler-Natta
>)
TM
Kashima
(Manufacturing
< SEPTON TM>,
< HYBRAR TM>,
and Liquid polymers
R&D for
these products)
2
KURARAY &
its elastomer business
Evolution of
Kuraray’s elastomers
Kuraray’s
development
1926
1950
1926
Established in
Okayama, Japan
1950 <KURALON TM> (PVA fiber)/
PVA production started
Kuraray's
Methaclyrate Business
1958
POVAL(PVA) for
market sales
1960
< KURARITY TM>
Mw distribution(Mw/Mn=1.13)
<KURARITY TM> is a novel acrylic
copolymer based on
Kuraray.s two main stream
technologies.
2003-
1959
1964
MMA monomer
1960
・Polyester staple fiber
・<CLARINO TM>
(man-made leather)
PMMA Cast sheets
Elastomers Business
1970
10 3
1972 1972
Isoprene rubber
(now terminated)
<EVAL TM> (EVOH)
1978
1972
1973
Liquid isoprene
rubber
PMMA resin (<PARAPET TM>)
1980
<KURARITY TM>’s
development
1990 1990
1998
1994
<SEPTON TM > (HSBC)
<VECTRAN TM > (PAR)
<KURALON K-Ⅱ
TM >
(PVA Gel)
1990-
1999 AL based catalyst invented
<HYBRAR TM > (HSBC)
1999
<GENESTAR TM > (PA9T)
2000
2001
<SEPTON TM >V series
(Hard block
cross-linkable HSBC)
10 4
10 5
Molecular Weight
10 6
Anionic living polymerization
by an unique catalyst system
〈Features〉
●Extremely low residual monomer or oligomer
●Extremely low odor
●Low hardness without plasticizer
PMMA Extruded sheets
1974
Dental materials
1990
PnBA
polymerized
by AIBN
(Mw/Mn=1.56)
3rd Generation
“Hydrogenated Styrenic
Block Copolymer” (HSBC)
■ < SEPTON TM >
■ < HYBRAR TM >
Advanced anionic
living polymerization
+ Hydrogenation
2003
Pilot plant for
<KURARITY TM >established
2003
<SEPTON TM > Q series
(special HSBC)
2010
19741990
2011
< KURARITY TM >
commerciarized
2nd Generation
“Isoprene based Rubbers”
■ Trans- Polyisoprene (TP) ■ Liquid Isoprene Rubber (L-IR)
Anionic living polymerization
Frankfurt(Sales for Europe, Africa and the Middle East)
Houston
( Manufacturing for < SEPTON
and Sales for North, Central,
and South America)
TM
>
Shanghai
(Sales for China)
Niigata
(Manufacturing
for < KURARITY TM>)
The global reach of Kuraray’
s elastomers business
Plant locations in Japan
1
19721974
Tokyo
(Elastomer Business
World HQ and Sales for
Japan and Asia Pacific)
Tsukuba
(R&D for
< KURARITY
1st Generation
■
Isoprene Rubber (IR)*
for Natural rubber substitution
(*now terminated)
Ziegler-Natta
>)
TM
Kashima
(Manufacturing
< SEPTON TM>,
< HYBRAR TM>,
and Liquid polymers
R&D for
these products)
2
Structure and characteristics
of “KURARITY TM”
All Acrylic Block Copolymer
by Kuraray’s unique living anionic polymerization technology.
Hard block
Soft block
Contents
Structure and characteristics of “KURARITY TM”
P4
Comparison of “KURARITY ” with other transparent materials
P5
Potential applications for “KURARITY TM”
P6
Grades of “KURARITY TM”
P7
Physical and Mechanical Properties of “KURARITY TM”
P8-9
Adhesive Properties of “KURARITY TM”
P10
Solubility Parameters of “KURARITY ”
P11
Solvent Solubility of “KURARITY TM”
P12
Properties of “KURARITY TM”
P13-17
Paintability of “KURARITY TM”
P18
Adhesion to other plastics
P19
Chemical Resistance of “KURARITY TM”
P20
TM
TM
Optically transparent
Weatherable
Paintable
Softness
Adhesion
Polarity
Thermoplastic elastomer
Easily processable
Compatibilizer
Hot melt
No residual oligomers
or monomers
P21
Compatibility with “KURARITY TM”
Injection Molding Conditions of “KURARITY ”
P22
Extrusion Conditions of “KURARITY TM”
P23
Moisture Absorption of “KURARITY TM”
P24
Compounding Conditions of “KURARITY TM”
P25
TM
3
This acrylic based structure provides
the following characteristics:
● Excellent clarity in elastomers
● Excellent weatherbility with
no concerns about hydrolytic
degradation
● High gloss
● Self-adhesive and moldable
● Ultimately less odor …etc
4
Structure and characteristics
of “KURARITY TM”
All Acrylic Block Copolymer
by Kuraray’s unique living anionic polymerization technology.
Hard block
Soft block
Contents
Structure and characteristics of ”KURARITY TM”
P4
Comparison of ”KURARITY ” with other transparent materials
P5
Potential applications for ”KURARITY TM”
P6
Grades of ”KURARITY TM”
P7
Physical and Mechanical Properties of ”KURARITY TM”
P8-9
Adhesive Properties of ”KURARITY TM”
P10
Solubility Parameters of ”KURARITY ”
P11
Solvent Solubility of ”KURARITY TM”
P12
Properties of ”KURARITY TM”
P13-17
Paintability of ”KURARITY TM”
P18
Adhesion to other plastics
P19
Chemical Resistance of ”KURARITY TM”
P20
TM
TM
Optically transparent
Weatherable
Paintable
Softness
Adhesion
Polarity
Thermoplastic elastomer
Easily processable
Compatibilizer
Hot melt
Extremely low residual
monomer or oligomer
P21
Compatibility with ”KURARITY TM”
Injection Molding Conditions of ”KURARITY ”
P22
Extrusion Conditions of ”KURARITY TM”
P23
Moisture Absorption of ”KURARITY TM”
P24
Compounding Conditions of ”KURARITY TM”
P25
TM
3
This acrylic based structure provides
the following characteristics:
● Excellent clarity in elastomers
● Excellent weatherability with
no concerns about hydrolytic
degradation
● High gloss
● Self-adhesive and moldable
● Ultimately less odor …etc
4
Comparison of “KURARITY TM”
with other transparent materials
Potential applications
for “KURARITY TM”
Tested by Kuraray
PC
Transparent
ABS
Aliphatic
TPU
89
88.5
88.7
<0.3
1.0
9.9
9.8
30
60-80
60
42
32
90
50
2-7
90
50
800
650
1400
3300
2300
2000
60
NB
NB
NB
1.3-1.4
50
15
NB
75
86-101
124
73
-
50
62
92-110
150-155
87
75-130
1.7*1016
0.6*1016
1.4*1016
1016＜
1015＜
1016＜
1013-1015
∞
∞
∞
1013＜
3*1016
1016＜
1011-1015
1.10
1.11
1.13
1.19
1.20
1.10
1.15
R scale
41
47
59
（124）
（122）
108
70
M scale
（＜15）
（18）
（24）
94-103
55
46
（48）
Type D
34
46
64
85-90
75-85
70-80
43
95
95＜
95＜
95＜
95＜
85
Method
Condition
(Unit)
LB550
LA4285
LM730H
PMMA
3mm/
D65(%)
91<
91<
91<
92<
3mm(%)
<2
<2
<2
(MPa)
12
19
Tensile strain at break
ISO
13468-1
ISO
14782
ISO
527-2
ISO
527-2
(%)
190
Flexural modulus
ISO 178
(MPa)
100
Charpy impact
strength unnotched
Charpy impact
strength notched
ISO 179
1eU(kJ/m2)
NB
NB
NB
19-23
ISO 179
1eA(kJ/m2)
NB
28
10
DTUL
ISO
75-1.-2
-
58
Vicat softening point
ISO 306
-
Surface resistivity
IEC
60093
IEC
60093
1.82MPa
(℃)
B50 Annealed
(℃)
(Ω)
(Ωm)
Transmittance
Haze
Tensile strength at break
Volume resistivity
Specific Gravity
ISO 1183
Rockwell Hardness
ISO
2039-2
Durometer Hardness
ISO
7619-1
Linear thermal expansion
ISO
11359-2
Flammability
UL 94
Water absorption at 23℃
ISO 62
Mold Shrinkage
Refractive index
Type A
78
ave.20-50deg
(*10^-5K-1)
7
10
21
6
7
9-11
（HB）
（HB）
（HB）
HB
V-2
HB
（HB)
24hr (%)
0.5
0.9
1.1
0.3
0.2
0.8
0.8
ISO 8328
(%)
0.5-1.5
1.0-1.5
1.0-1.5
0.2-0.6
0.5-0.7
0.5
1.2-2.0
ISO 489
nd
1.48
1.48
1.48
1.49
1.585
1.52
1.49-1.55
6B-H
Abbe's Number
ISO 489
58
58
58
58
30
-
Pencil Hardness
ISO
15184
6B
6B
6B
2H-3H
2B
B
A
Hot melt PSA
Industrial tapes
Adhesives
and labels
Solvent based PSA
B
Injection Molding
Molding
Materials
Consumer goods,
Automotive interior
Profile Extrusion
parts, Appliances,
Lighting goods
Extrusion
* Excluding blow molding.
C
Modifier for PLA, ABS,
Plastics
Modification
PBT, PVDF, PVC, PET-G
and etc.
10-20
A
A
C
B
B
B
LB550 and LM730H: Developmental Grades
Comparison
with PMMA
Molding
Versatility
5
Mechanical
properties
4
3
5
Mechanical
Weatherability properties
Comparison
with Aliphatic
TPU
Molding
Versatility
5
4
3
Mechanical
Weatherability properties
Molding
Versatility
5
4
3
2
1
1
1
0
0
0
Optical
properties
Chemical
Resistance
Heat
Resistance
KURARITYTM
Chemical
PC
ABS(Transparent) Resistance
Weatherability
2
2
Heat
Resistance
KURARITYTM
PMMA
Comparison
with transparent
hard plastics
Optical
properties
Heat
Resistance
KURARITYTM
Aliphatic TPU
Optical
properties
Chemical
Resistance
6
Comparison of “KURARITY TM”
with other transparent materials
Potential applications
for “KURARITY TM”
Tested by Kuraray
PC
Transparent
ABS
Aliphatic
TPU
89
88.5
88.7
<0.3
1.0
9.9
9.8
30
60-80
60
42
32
90
50
2-7
90
50
800
650
1400
3300
2300
2000
60
NB
NB
NB
1.3-1.4
50
15
NB
75
86-101
124
73
-
50
62
92-110
150-155
87
75-130
0.6*1016
1.4*1016
1016＜
1015＜
1016＜
1013-1015
1013＜
3*1016
1016＜
1011-1015
Method
Condition
(Unit)
LB550
LA4285
LM730H
PMMA
3mm/
D65(%)
91<
91<
91<
92<
3mm(%)
<2
<2
<2
(MPa)
12
19
Tensile strain at break
ISO
13468-1
ISO
14782
ISO
527-2
ISO
527-2
(%)
190
Flexural modulus
ISO 178
(MPa)
100
Charpy impact
strength unnotched
Charpy impact
strength notched
ISO 179
1eU(kJ/m2)
NB
NB
NB
19-23
ISO 179
1eA(kJ/m2)
NB
28
10
DTUL
ISO
75-1.-2
-
58
Vicat softening point
ISO 306
-
Surface resistivity
IEC
60093
IEC
60093
1.82MPa
(℃)
B50 Annearled
(℃)
(Ω)
1.7*1016
Transmittance
Haze
Tensile strength at break
Volume resistivity
Specific Gravity
(Ωm)
ISO 1183
Rockwell Hardness
ISO
2039-2
Durometer Hardness
ISO
7619-1
Linear thermal expansion
ISO
11359-2
Flammability
UL 94
Water absorption at 23℃
ISO 62
Mold Shrinkage
Refractive index
(g/m3)
1.10
1.11
1.13
1.19
1.20
1.10
1.15
R scale
41
47
59
（124）
（122）
108
70
M scale
（＜15）
（18）
（24）
94-103
55
46
（48）
Type D
34
46
64
85-90
75-85
70-80
43
95
95＜
95＜
95＜
95＜
85
Type A
78
ave.20-50deg
(*10^-5K-1)
7
10
21
6
7
9-11
（HB）
（HB）
（HB）
HB
V-2
HB
（HB)
24hr (%)
0.5
0.9
1.1
0.3
0.2
0.8
0.8
ISO 8328
(%)
0.5-1.5
1.0-1.5
1.0-1.5
0.2-0.6
0.5-0.7
0.5
1.2-2.0
ISO 489
Nd
1.48
1.48
1.48
1.49
1.585
1.52
1.49-1.55
6B-H
Abbe's Number
ISO 489
58
58
58
58
30
-
Pencil Hardness
ISO
15184
6B
6B
6B
2H-3H
2B
B
A
Hot melt PSA
Industrial tapes
Adhesives
and labels
Solvent based PSA
B
Injection Molding
Molding
Materials
Consumer goods,
Automotive interior
Profile Extrusion
parts, Appliances,
Lighting goods
Extrusion
* Excluding blow molding.
C
Modifier for PLA, ABS,
Plastics
Modification
PBT, PVDF, PVC, PET-G
and etc.
10-20
A
A
C
B
B
B
LB550 and LM730H: Developmental Grades
Comparison
with PMMA
Molding
Versatility
5
Mechanical
properties
4
3
5
Mechanical
Weatherability properties
Comparison
with Aliphatic
TPU
Molding
Versatility
5
4
3
Mechanical
Weatherability properties
Molding
Versatility
5
4
3
2
1
1
1
0
0
0
Optical
properties
Chemical
Resistance
Heat
Resistance
KURARITYTM
Chemical
PC
ABS(Transparent) Resistance
Weatherability
2
2
Heat
Resistance
KURARITYTM
PMMA
Comparison
with transparent
hard plastics
Optical
properties
Heat
Resistance
KURARITYTM
Aliphatic TPU
Optical
properties
Chemical
Resistance
6
Physical and Mechanical Properties
of “KURARITY TM”
Grades of “KURARITY ”
TM
＜Pellet Grades＞
LA series：nBA based block copolymers
Test Method
LB series：Softer KURARITY TM alloys
LM series：Stiffer KURARITY
TM
Hardness
alloys
Specific Gravity
PMMA cont. (wt%)
For Adhesives
● LA2140e
LA4285
LB550
LM730H
32
65
95
78
97
ISO 7619-1（Type D）
（–）
<5
<5
18
46
34
64
ISO 1183
（–）
1.08
1.08
1.11
1.10
1.13
31
3.7
25
1.5
3.8
1.1
ISO 1133 [230 2.16kg]
(g/10min)
>350
42
330
31
68
17
ISO 37
(MPa)
0.3
0.3
3.7
19
9.1
–
ISO 37
(MPa)
8.0
7.2
9.0
19
12
–
ISO 527-2
(MPa)
–
–
–
19
–
30
ISO 37
(%)
570
490
380
140
190
–
ISO 527-2
(%)
–
–
–
90
–
50
Flexural Modulus
ISO 178
(MPa)
–
–
–
650
100
1400
Charpy Impact
ISO 179-1(notched : 1eA)
(kJ/m2)
NB
NB
NB
28
NB
10
Transmittance
ISO 13468-1 [3mmt]
(%)
91 <
91 <
91 <
91 <
91 <
91 <
Haze
ISO 14782 [3mmt]
(%)
<2
<2
<2
+
+
Tensile Elongation
● LA2250
LA2250
32
Units
1.08
Tensile Strength
● LA4285
LA2330
（–）
(g/10min)
Modulus at 100%
For Molding
LA2140e
ISO 7619-1（Type A）
ISO 1133 [190 2.16kg]
MFR
<The grade map of LA series>
High
The figures should be regarded as guide values only and not as binding minimum values.
Tested by Kuraray
● LA2330
Suitable Applications
2-6 *
2-6 *
2-6 *
For PSA
+
+
+
For Molding
–
–
+**
+
For Compound, Additives
+**
+**
+**
+
* The HAZE value are normally worse due to the anti-blocking agent dusted onto the material.
** These grades can block or bridge while feeding into the extruder.
Some solutions to break it should be implemented.
● LA1114*
Low
Low
LB550 and LM730H are
developmental grades.
High
Molecular Weight
*）Di-block
Viscous Liquid
LA2250
LM730H
●
(D64)
LA4285
PMMA cont. (wt%)
LA2140e
High
● LA4285
LB550
●
●
● LA2250
LA2140e
LA2330
Low
100nm
100nm
100nm
20
30
40
50
60
70
80
90
Hardness [Type A]
7
8
Physical and Mechanical Properties
of “KURARITY TM”
Grades of “KURARITY ”
TM
＜Pellet Grades＞
LA series：nBA based block copolymers
Test Method
LB series：Softer KURARITY TM alloys
LM series：Stiffer KURARITY
TM
Hardness
alloys
Specific Gravity
PMMA cont. (wt%)
For Adhesives
● LA2140e
LA4285
LB550
LM730H
32
65
95
78
97
ISO 7619-1（Type D）
（–）
<5
<5
18
46
34
64
ISO 1183
（–）
1.08
1.08
1.11
1.10
1.13
31
3.7
25
1.5
3.8
1.1
ISO 1133 [230℃ 2.16kg]
(g/10min)
>350
42
330
31
68
17
ISO 37
(MPa)
0.3
0.3
3.7
19
9.1
–
ISO 37
(MPa)
8.0
7.2
9.0
19
12
–
ISO 527-2
(MPa)
–
–
–
19
–
30
ISO 37
(%)
570
490
380
140
190
–
ISO 527-2
(%)
–
–
–
90
–
50
Flexural Modulus
ISO 178
(MPa)
–
–
–
650
100
1400
Charpy Impact
ISO 179-1(notched : 1eA)
(kJ/m2)
NB
NB
NB
28
NB
10
Transmittance
ISO 13468-1 [3mmt]
(%)
91 <
91 <
91 <
91 <
91 <
91 <
Haze
ISO 14782 [3mmt]
(%)
<2
<2
<2
+
+
Tensile Elongation
● LA2250
LA2250
32
Units
1.08
Tensile Strength
● LA4285
LA2330
（–）
(g/10min)
Modulus at 100%
For Molding
LA2140e
ISO 7619-1（Type A）
ISO 1133 [190℃ 2.16kg]
MFR
<The grade map of LA series>
High
The figures should be regarded as guide values only and not as binding minimum values.
Tested by Kuraray
● LA2330
Suitable Applications
2-6 *
2-6 *
2-6 *
For PSA
+
+
+
For Molding
–
–
+**
+
For Compound, Additives
+**
+**
+**
+
* The HAZE value is normally worse due to the anti-blocking agent dusted onto the material.
** These grades can block or bridge while feeding into the extruder.
Some solutions to break it should be implemented.
● LA1114*
Low
Low
LB550 and LM730H are
developmental grades.
High
Molecular Weight
*）Di-block
Viscous Liquid
LA2250
LM730H
●
(D64)
LA4285
PMMA cont. (wt%)
LA2140e
High
● LA4285
LB550
●
●
● LA2250
LA2140e
LA2330
Low
100nm
100nm
100nm
20
30
40
50
60
70
80
90
Hardness [Type A]
7
8
Physical and Mechanical Properties
of “KURARITY TM”
Adhesive Properties
of “KURARITY TM”
＜Liquid Grade＞
Temperature dependency of Viscosity (LA1114).
LA2140e
LA2330
to Stainless steel
<0.1
<0.1
to Glass
148
171
to Stainless steel
147
165
25<
25<
107
Creep test at 60℃
（mm)
LA1114
SAFT(℃)
Viscosity（mPa・s）
106
Rolling ball tack(cm)
105
104
103
20
40
60
80
100
Temperature (℃)
120
140
160
180
Loop tack test (N/10mm)
to Stainless steel
3.4
2
180℃ Peel adhesion (N/25mm)
to Glass
to Stainless steel
to Polyethylene
18.5
19.7
0.6(Stick slipped)
20.2
12.6
1.1(Stick slipped)
<test specimens> ：PET(50µm)/KURARITY TM(25µm),toluene solution
<test conditions> ：
Creep test
：1.0kgf, Sample size 25mm×25mm, 1000min
SAFT
：0.5kgf, Sample size 25mm×25mm, 0.5℃/min
Rolling ball tack
：ASTM D3121
Loop tack
：PSTC-16
180℃ Peel adhesion：300mm/min, Room Temperature
LA1114
Specific Gravity
Melt viscosity
(mPa・s)
Tg (℃)
9
ISO1183
ISO2555
1.04
50℃
2000000
70℃
400000
100℃
65000
130℃
15000
160℃
5000
-40 ∼ -50
10
Physical and Mechanical Properties
of “KURARITY TM”
Adhesive Properties
of “KURARITY TM”
＜Liquid Grade＞
Temperature dependency of Viscosity (LA1114).
LA2140e
LA2330
to Stainless steel
<0.1
<0.1
to Glass
148
171
to Stainless steel
147
165
25<
25<
107
Creep test at 60℃
（mm)
LA1114
SAFT(℃)
Viscosity（mPa・s）
106
Rolling ball tack(cm)
105
104
103
20
40
60
80
100
Temperature (℃)
120
140
160
180
Loop tack test (N/10mm)
to Stainless steel
3.4
2
180℃ Peel adhesion (N/25mm)
to Glass
to Stainless steel
to Polyethylene
18.5
19.7
0.6(Stick slipped)
20.2
12.6
1.1(Stick slipped)
<test specimens> ：PET(50µm)/KURARITY TM(25µm),toluene solution
<test conditions> ：
Creep test
：1.0kgf, Sample size 25mm×25mm, 1000min
SAFT
：0.5kgf, Sample size 25mm×25mm, 0.5℃/min
Rolling ball tack
：ASTM D3121
Loop tack
：PSTC-16
180℃ Peel adhesion：300mm/min, Room Temperature
LA1114
Specific Gravity
Melt viscosity
(mPa・s)
Tg (℃)
9
ISO1183
ISO2555
1.04
50
2000000
70
400000
100
65000
130
15000
160
5000
-40 ∼ -50
10
Solubility Parameters
of “KURARITY TM”
Solvent Solubility
of “KURARITY TM”
＜Solubility Parameter＞
＜Solvent Solubility＞
Solubility Parameter
8.0
8.5
9.0
Common resins for adhesives
IIR
NR
SBR
SEBS
SIS
SBS
MMA
〈KURARITY TM 〉
Adhesive performance can be controlled by tackification.
Tackifiers and plasticizers can be chosen referring to solubility parameter.
● Rosin ester, Terpene phenol and Styrenic resins
with lower softening temperatures are suitable.
●
LA2140e
LA2330
LA2250
LA4285
Benzene
S
S
S
S
Toluene
S
S
S
S
Xylene
S
S
S
S
Methyl acetate
S
S
S
S
Ethyl acetate
S
S
S
S
Butyl acetate
S
S
S
S
Acetone
S
S
S
S
Methyl ethyl ketone
S
S
S
S
Methyl isopropyl ketone
S
S
S
S
Methyl isobutyl ketone
S
S
S
S
Tetra hydro furan
S
S
S
S
Chloroform
S
S
S
S
Carbon tetra chloride
S
S
S
S
Ethylene glycol monobutyl ether
S
S
S
S
SW (-)
SW (-)
SW (-)
I
SW
SW
SW
SW (-)
Methanol
SW (+)
SW (+)
SW (+)
SW
Ethanol
SW (+)
SW
SW (+)
SW (-)
SW
SW
SW
SW
Solvent
Heptane
Cyclohexane
Isopropyl alcohol
<Test Method>
2g of KURARITY TM (pellets) and 18g of solvent were
mixed in a vessel and shaken at room temperature for 2 days.
The solvent solubility was determined by visual observation.
S ：soluble
PS ：partially soluble
SW（＋）
：greatly swelling and agglomerating
SW ：swelling
SW(−) ：minimal swelling
I ：Insoluble
11
12
Solubility Parameters
of “KURARITY TM”
Solvent Solubility
of “KURARITY TM”
＜Solubility Parameter＞
＜Solvent Solubility＞
Solubility Parameter
8.0
8.5
9.0
Common resins for adhesives
IIR
NR
SBR
SEBS
SIS
SBS
MMA
〈KURARITY TM 〉
Adhesive performance can be controlled by tackification.
Tackifiers and plasticizers can be chosen referring to solubility parameter.
● Rosin ester, Terpene phenol and Styrenic resins
with lower softening temperatures are suitable.
●
LA2140e
LA2330
LA2250
LA4285
Benzene
S
S
S
S
Toluene
S
S
S
S
Xylene
S
S
S
S
Methyl acetate
S
S
S
S
Ethyl acetate
S
S
S
S
Butyl acetate
S
S
S
S
Acetone
S
S
S
S
Methyl ethyl ketone
S
S
S
S
Methyl isopropyl ketone
S
S
S
S
Methyl isobutyl ketone
S
S
S
S
Tetrahydrofuran
S
S
S
S
Chloroform
S
S
S
S
Carbon tetrachloride
S
S
S
S
Ethylene glycol monobutyl ether
S
S
S
S
SW (-)
SW (-)
SW (-)
I
SW
SW
SW
SW (-)
Methanol
SW (+)
SW (+)
SW (+)
SW
Ethanol
SW (+)
SW
SW (+)
SW (-)
SW
SW
SW
SW
Solvent
Heptane
Cyclohexane
Isopropyl alcohol
<Test Method>
2g of KURARITY TM (pellets) and 18g of solvent were
mixed in a vessel and shaken at room temperature for 2 days.
The solvent solubility was determined by visual observation.
S ：soluble
PS ：partially soluble
SW（＋）
：greatly swelling and agglomerating
SW ：swelling
SW(−) ：minimal swelling
I ：Insoluble
11
12
Properties of “KURARITY TM”
Properties of “KURARITY TM”
<Thermal conductivity>
＜Dynamic Viscoelastic Behavior＞
[W/(m･K)]
LA2250
LA2140e
Test method : ASTM E1530
Test piece size : 50mmφ * 3mmt Injection molded sample
Temperature : 23℃
＜Contact angle＞
90
1.E+04
90
89
LA4285
1.E+08
50Hz
-
73
1.E+07
1.E+02
1.E+06
＜Electrical properties＞
1MHz
1kHz
50Hz
3.8
0.063
4.4
0.023
4.7
-
Test method : ASTM D150
Sample : LA2250 Compression molded sheet
＜Moisture Permeability＞
Water Vapor Transmission Rate
(g/m2・24hr)
LA2140e
LA2330
LA2250
LA4285
Test method : JIS Z 0208 (Dish method), 40degC 90% RH
Test piece size : 60mmφ * 0.1mmt , Compression molded sheet
580
610
480
320
1.E+03
LB550
4.7
Test method : by image processing method Solvent = Purified water
Test piece size : 50mm * 50mm * 3mmt
Injection molded sample
13
1.E+09
Tanσ
LA4285
LA2250
PC
PMMA
Dielectric dissipation factor Dt
1.E+05
E’（Pa）
Angle (deg.)
Relative Permittivity εγ
1.E+10
0.17
0.17
1.E+01
LA2250
1.E+05
1.E+00
1.E+04
1.E-01
1.E+03
1.E-02
-100
-50
0
50
100
150
200
Temperature (℃)
LB550 is a developmental grade
All the Kurarity grades show similar low temperature properties
which result from Tg of PnBA and heat resistance
which results from Tg of PMMA.
● Kurarity TM is non-crystalline block copolymer and
does not have melting point.
●
TM
<test method>
test speciment：Compression
molded sheet
tensile mode
Frequency：11Hz
Heating rate：3℃/min
14
Properties of “KURARITY TM”
Properties of “KURARITY TM”
<Thermal conductivity>
＜Dynamic Viscoelastic Behavior＞
Tested by Kuraray
[W/(m･K)]
LA2250
LA2140e
＜Contact angle＞
90
1.E+04
90
89
LA4285
1.E+08
50Hz
LB550
4.7
-
73
Test method : by image processing method Solvent = Purified water
Test piece size : 50mm * 50mm * 3mmt
Injection molded sample
1.E+07
1.E+02
1.E+06
＜Electrical properties＞
1MHz
1kHz
50Hz
3.8
0.063
4.4
0.023
4.7
-
Test method : ASTM D150
Sample : LA2250 Compression molded sheet
＜Moisture Permeability＞
Water Vapor Transmission Rate
(g/m2・24hr)
LA2140e
LA2330
LA2250
LA4285
Test method : JIS Z 0208 (Dish method), 40degC 90% RH
Test piece size : 60mmφ * 0.1mmt , Compression molded sheet
580
610
480
320
1.E+03
Tanσ
LA4285
LA2250
PC
PMMA
13
1.E+09
E’（Pa）
Angle (deg.)
Dielectric dissipation factor Dt
1.E+05
0.17
0.17
Test method : ASTM E1530
Test piece size : 50mmφ * 3mmt Injection molded sample
Temperature : 23℃
Relative Permittivity εγ
1.E+10
1.E+01
LA2250
1.E+05
1.E+00
1.E+04
1.E-01
1.E+03
1.E-02
-100
-50
0
50
100
150
200
Temperature［ ℃］
LB550 is a developmental grade
All the KURARITY grades show similar low temperature properties
which result from Tg of PnBA and heat resistance
which results from Tg of PMMA.
● KURARITY TM is non-crystalline block copolymer and
does not have melting point.
●
TM
<test method>
test specimens：
Compression molded sheets
tensile mode
Frequency：11Hz
Heating rate：3℃/min
14
Properties of “KURARITY TM”
Properties of “KURARITY TM”
＜Temperature dependency of Tanδ＞
Tested by Kuraray
＜Thermal stability＞ Test Condition : Rate:10℃/min
N2
10
LA2250
LA4285
316℃
445℃
315℃
435℃
5% Weight Loss Temp.
99% Weight Loss Temp.
100
1
LA2250
LA4285
Weight[%]
tanδ
80
60
40
0.1
20
0
0
0.01
-100
100
200
300
400
500
600
700
Temperature[℃]
-50
0
50
Temperature[℃]
＜Test Conditions＞
Test specimen: Compression molded sheet
Tensile mode
Frequency: 11Hz
Heating rate: 2 /min
HYBRARTM 5127
HYBRARTM 7125
SEPTONTM 4033
KURARITYTMLA2140e
KURARITYTMLA2250
KURARITYTMLA4285
HYBRARTM is a series of styrenic elastomers developed
by Kuraray Co., Ltd. which offer high vibration damping properties
due to its tan δ peak near room temperature.
● SEPTON TM is a series of hydrogenated styrenic elastomers
developed by Kuraray Co., Ltd. SEPTONTM has its tan δ peak at
lower temperature and shows rubber-like properties at room temperature.
Air
5% Weight Loss Temp.
99% Weight Loss Temp.
LA2250
LA4285
276℃
528℃
278℃
507℃
100
●
LA2250
LA4285
Weight[%]
80
60
40
20
0
0
100
200
300
400
500
600
700
Temperature[℃]
15
16
Properties of “KURARITY TM”
Properties of “KURARITY TM”
＜Temperature dependency of Tanδ＞
Tested by Kuraray
＜Thermal stability＞ Test Condition : Rate:10℃/min
N2
10
LA2250
LA4285
316℃
445℃
315℃
435℃
5% Weight Loss Temp.
99% Weight Loss Temp.
100
1
LA2250
LA4285
Weight[%]
tanδ
80
60
40
0.1
20
0
0
0.01
-100
100
200
300
400
500
600
700
Temperature[℃]
-50
0
50
Temperature[℃]
＜Test Conditions＞
Test specimen: Compression molded sheet
Tensile mode
Frequency: 11Hz
Heating rate: 2 /min
HYBRARTM 5127
HYBRARTM 7125
SEPTONTM 4033
KURARITYTMLA2140e
KURARITYTMLA2250
KURARITYTMLA4285
HYBRARTM is a series of styrenic elastomers developed
by Kuraray Co., Ltd. which offer high vibration damping properties
due to its tan δ peak near room temperature.
● SEPTON TM is a series of hydrogenated styrenic elastomers
developed by Kuraray Co., Ltd. SEPTONTM has its tan δ peak at
lower temperature and shows rubber-like properties at room temperature.
Air
5% Weight Loss Temp.
99% Weight Loss Temp.
LA2250
LA4285
276℃
528℃
278℃
507℃
100
●
LA2250
LA4285
Weight[%]
80
60
40
20
0
0
100
200
300
400
500
600
700
Temperature[℃]
15
16
Properties of “KURARITY TM”
Paintability of “KURARITY TM”
＜Weatherability＞
Test method：ISO4892-4 (SWOM)
BPT：63℃
Exposure Intensity：255W/m2 (300~700nm)
Exposure time： 500hr, 1,000hr, 2,000hr
Injection molded test specimen
30
20
10
0
0
500
LA4285
LM730H
PMMA
Painting **
+
+
+
+
Printing
(Inkjet print:UV type)
+
+
+
+
Pad printing
(UV Type)
+
+
+
+
Hard Coating
(Improve Scratch Resistance)
+
+
+
+
Coating (Vacuum deposition)
Al, Cr, Sn, SiO2, ITO +
+
+
-
Dyeing ***
+*
+*
+*
+
Tensile Strength（ISO527-2）
Tensile Strength（MPa）
Tensile Strength（MPa）
Tensile Strength（ISO37）
LB550
1000
1500
100
80
60
40
20
0
0
500
1000
1500
2000
Exposure time（hr）
2000
Exposure time（hr）
LA4285
LM730H
PMMA
PC
ABS
LA2250
LB550
TPU
Aliphatic-TPU
Color（b Value）
Haze
2
11
29
6
1.0
0.5
31
23
89
41
12
8
4
*) These samples are without UVA, HALS
Aliphatic-TPU
TPU
ABS
PC
PMMA
LM730H
LB550
LA2250
Aliphatic-TPU
TPU
ABS
PC
PMMA
LM730H
LB550
LA2250
LA4285
0hr
1000hr
2000hr
LA4285
0
0.0
17
49
16
Haze（%）
b Value
1.5
8
*) The coating materials may crack depending on their flexibility
**) Acrylic urethane paints have proven well suited.
***) Pigments (organic or inorganic) have proven well suited.
LB550 and LM730H are
developmental grades.
0hr
1000hr
2000hr
-
18
Properties of “KURARITY TM”
Paintability of “KURARITY TM”
＜Weatherability＞
Test method：ISO4892-4 (SWOM)
BPT：63℃
Exposure Intensity：255W/m2 (300~700nm)
Exposure time： 500hr, 1,000hr, 2,000hr
Injection molded test specimen
LB550
30
20
10
0
0
500
LM730H
PMMA
Painting **
+*
+
+
+
Printing
(Inkjet print:UV type)
+
+
+
+
Pad printing
(UV Type)
+
+
+
+
Hard Coating
(Improve Scratch Resistance)
+*
+
+
+
Coating (Vacuum deposition)
Al, Cr, Sn, SiO2, ITO +*
+
+
-
Dyeing ***
+
+
+
+
Tensile Strength（ISO527-2）
Tensile Strength（MPa）
Tensile Strength（MPa）
Tensile Strength（ISO37）
LA4285
1000
1500
100
80
60
40
20
0
0
500
1000
1500
2000
Exposure time（hr）
2000
Exposure time（hr）
LA4285
LM730H
PMMA
PC
ABS
LA2250
LB550
TPU
Aliphatic-TPU
Color（b Value）
Haze
2
11
29
6
1.0
0.5
31
23
89
41
12
8
4
*) These samples are without UVA, HALS
Aliphatic-TPU
TPU
ABS
PC
PMMA
LM730H
LB550
LA2250
Aliphatic-TPU
TPU
ABS
PC
PMMA
LM730H
LB550
LA2250
LA4285
0hr
1000hr
2000hr
LA4285
0
0.0
17
49
16
Haze（%）
b Value
1.5
8
*) The coating materials may crack depending on their flexibility
**) Acrylic urethane paints have proven well suited.
***) Pigments (organic or inorganic) have proven well suited.
LB550 and LM730H are
developmental grades.
0hr
1000hr
2000hr
-
18
Chemical Resistance
of “KURARITY TM”
Adhesion to other plastics
Double Injection
with KURARITYTM
Co-Extrusion
with KURARITYTM
PMMA
+
+
PC
+
+*
PET-G
+
+
ABS
+
+
PS
+
+
PVC
+
+
TPU
+
+
PBT
-
-
POM
-
-
PET
-
-*
PA
-
-*
PE
-
-
PP
-
-
*Proper equipment and processing parameter adjustments
are required since the processing temperature of these resins
are widely different from KURARITY TM.
Overmolded Sample
19
<Legend>
+ : No Change, - : Swell / Clouding
Visual Check
Acids (H2SO4: 0.1N)
+
Alkaline solution (NaOH: 0.1N)
+
Hand cream
+
Castor oil
+
Gasoline
+
Kerosene
-
Oleinic acid
-
Engine oil (Mineral oil)
+
Wax (liquid type: Alcohol 10%)
+
Ethanol aqueous solution (50wt%)
+
Methanol
-
Ethanol
-
Brake fluid (Glycol ether: 99%)
-
Test Method: The aforementioned chemical is soaked into cotton cloth,
then wiped 8 times-RT*24hr-80ºC *1hr
Sample:LA2250 (Similar results are expected with other grades)
20
Chemical Resistance
of “KURARITY TM”
Adhesion to other plastics
Double Injection
with KURARITYTM
Co-Extrusion
with KURARITYTM
PMMA
+
+
PC
+
+*
PET-G
+
+
ABS
+
+
PS
+
+
PVC
+
+
TPU
+
+
PBT
-
-
POM
-
-
PET
-
-*
PA
-
-*
PE
-
-
PP
-
-
*Proper equipment and processing parameter adjustments
are required since the processing temperature of these resins
are widely different from KURARITY TM.
Overmolded Sample
19
<Legend>
+ : No Change, - : Swell / Clouding
Visual Check
Acids (H2SO4: 0.1N)
+
Alkaline solution (NaOH: 0.1N)
+
Hand cream
+
Castor oil
+
Gasoline
+
Kerosene
-
Oleic acid
-
Engine oil (Mineral oil)
+
Wax (liquid type: Alcohol 10%)
+
Ethanol aqueous solution (50wt%)
+
Methanol
-
Ethanol
-
Brake fluid (Glycol ether: 99%)
-
Test Method: The aforementioned chemical is soaked into cotton cloth,
then wiped 8 times-RT*24hr-80ºC *1hr
Sample:LA2250 (Similar results are expected with other grades)
20
Injection Molding Conditions
of “KURARITY TM”
Compatibility with “KURARITY ”
TM
<Drying>
Clear
PMMA
（*）
Visual
Clarity
AS
PLA
EVA
High VA%
PVDF
PVC
ABS/TPU
PET-G/PC
PBT/POM
-Circulating air ovens or vacuum oven dryers are recommended.
-A vented barrel and screw is satisfactory alternative to pre-drying.
LB550 : 60 ºC, 4 hours
LA4285, LM730H : 70-80 ºC, more than 4 hours
EVA
Low VA％
<Cleaning>
PI
PET
PA
PP/PE
TPO
All traces must be fully purged with polypropylene or polyethylene.
<Demolding>
The following slip agents have proven suitable to protect components with highly smooth surface from
scratches as well as to reduce tackiness of components.
Opaque
Excellent
Good
Process Temp.
mismatching
Poor
Zinc stearate
0.01-0.05 (phr)
Ethylene bis oleic amide 0.01-0.05 (phr)
（*）Mixing with Lower MVR
（MFR）PMMA
causes opaque appearance.
<Processing parameters>
＜PLA Modification by KURARITY TM＞
PLA / KURARITY TM
=90/10
LB550
LA4285
LM730H
Cylinder Temperature (ºC)
180-220
200-230
210-240
Mold Temperature (ºC)
20-40
20-40
30-60
The bottom of hopper
Water Cooling
Water Cooling
Water Cooling
Screw Revolution (rpm)
< 100
< 100
< 100
Back Pressure (kgf/cm2)
0-10
0-10
0-10
PLA / KURARITY TM
= 70/30
KURARITY TM
(black)
KURARITY TM
Matrix
PLA
(white,
matrix)
TEM Photo.
500nm
LB550 and LM730H are
developmental grades.
Thickness: 400μ
21
22
Injection Molding Conditions
of “KURARITY TM”
Compatibility with “KURARITY ”
TM
<Drying>
Clear
PMMA
（*）
Visual
Clarity
AS
PLA
EVA
High VA%
PVDF
PVC
ABS/TPU
PET-G/PC
PBT/POM
-Circulating air ovens or vacuum oven dryers are recommended.
-A vented barrel and screw is satisfactory alternative to pre-drying.
LB550 : 60 ºC, 4 hours
LA4285, LM730H : 70-80 ºC, more than 4 hours
EVA
Low VA％
<Cleaning>
PI
PET
PA
PP/PE
TPO
All traces must be fully purged with polypropylene or polyethylene.
<Demolding>
The following slip agents have proven suitable to protect components with highly smooth surface from
scratches as well as to reduce tackiness of components.
Opaque
Excellent
Good
Process Temp.
mismatching
Poor
Zinc stearate
0.01-0.05 (phr)
Ethylene bis oleic amide 0.01-0.05 (phr)
（*）Mixing with Lower MVR
（MFR）PMMA
causes opaque appearance.
<Processing parameters>
＜PLA Modification by Kurarity＞
PLA / Kurarity
=90/10
LB550
LA4285
LM730H
Cylinder Temperature (ºC)
180-220
200-230
210-240
Mold Temperature (ºC)
20-40
20-40
30-60
The bottom of hopper
Water Cooling
Water Cooling
Water Cooling
Screw Revolution (rpm)
< 100
< 100
< 100
Back Pressure (kgf/cm2)
0-10
0-10
0-10
PLA / Kurarity
= 70/30
Kurarity
(black)
Kurarity
Matrix
PLA
(white,
matrix)
TEM Photo.
500nm
LB550 and LM730H are
developmental grades.
400μ厚
21
22
Extrusion Conditions
of “KURARITY TM”
Moisture Absorption
of “KURARITY TM”
<Processing parameters>
LB550
LB550 and LM730H are developmental grades.
LB550 is a developmental grade.
Hopper
Feeding zone
Compression zone
Metering zone
Adapter
Die Head
Water Cooling
(down to 40℃)
100
∼ 130℃
140
∼ 160℃
150
∼ 170℃
150
∼ 170℃
150
∼ 170℃
Drying test
Tested in pellet form. Test Condition : Air circulating oven dryer
LA2250, LB550 : 60 ℃ LA4285, LM730H : 70 ℃
4000
※ single screw extruder with the following specs is recommended;
-machines using TPU, PVC
-full-flighted screw, L/D=24-28, compression ratio=2.5 - 3.1
The screen pack should consist of two 80 and 100 mesh screens to
remove any impurities that may damage the die, and also to
ensure sufficient back pressure.
●
Water absorption [ppm]
KURARITY TM must be dried prior to processing when using non-vented extruder
(hot air dryer, 60℃ , no less than 4 hours).
●
3500
LA2250
LB550
3000
LA4285
2500
LM730H
2000
1500
1000
500
A water cooling bath (5~30℃) is recommended for the cooling of KURARITY TM.
* Air cooling or shower may give insufficient cooling, and also
generate vibrations that may cause defects in appearance.
●
The edge and inner surface of the die should be well-finished to
achieve high- quality appearance.
Examples of Die Polishing
Before
polishing
the edge
×500
5
10
15
20
25
Drying time [h]
Moisture absorption test
Tested in pellet form.
Test Condition : 25 ℃ 50%RH
4000
After
polishing
the edge
×500
When switching from other resins, dismantling and cleaning of the extruder screw
and die components is recommended to prevent contamination.
Purging with polypropylene or polyethylene is recommended to remove
residual KURARITY TM in the extruder.
●
0
3000
Water absorption [ppm]
●
0
2000
LA2250
LB550
1000
LA4285
LM730H
0
20
40
60
80
Time [h]
The mechanical properties are largely unaffected by water absorption,
though its appearance might be observed as opaque when it contains more water.
23
24
Extrusion Conditions
of “KURARITY TM”
Moisture Absorption
of “KURARITY TM”
<Processing parameters>
LB550
LB550 and LM730H are developmental grades.
LB550 is a developmental grade.
Hopper
Feeding zone
Comzpression zone
Metering zone
Adapter
Die Head
Water Cooling
(down to 40℃)
100
∼ 130℃
140
∼ 160℃
150
∼ 170℃
150
∼ 170℃
150
∼ 170℃
Drying test
Tested in pellet form. Test Condition : Air circulating oven dryer
LA2250, LB550 : 60 ℃ LA4285, LM730H : 70 ℃
4000
※ single screw extruder with the following specs is recommended;
-machines using TPU, PVC
-full-flighted screw, L/D=24-28, compression ratio=2.5 - 3.1
The screen pack should consist of two 80 and 100 mesh screens to
remove any impurities that may damage the die, and also to
ensure sufficient back pressure.
●
Water absorption [ppm]
KURARITY TM must be dried prior to processing when using non-vented extruder
(hot air dryer, 60℃ , no less than 4 hours).
●
3500
LA2250
LB550
3000
LA4285
2500
LM730H
2000
1500
1000
500
A water cooling bath (5~30℃) is recommended for the cooling of KURARITY TM.
* Air cooling or shower may give insufficient cooling, and also
generate vibrations that may cause defects in appearance.
●
The edge and inner surface of the die should be well-finished to
achieve high- quality appearance.
Examples of Die Polishing
Before
polishing
the edge
×500
5
10
15
20
25
Drying time [h]
Moisture absorption test
Tested in pellet form.
Test Condition : 25 ℃ 50%RH
4000
After
polishing
the edge
×500
When switching from other resins, dismantling and cleaning of the extruder screw
and die components is recommended to prevent contamination.
Purging with polypropylene or polyethylene is recommended to remove
residual KURARITY TM in the extruder.
●
0
3000
Water absorption [ppm]
●
0
2000
LA2250
LB550
1000
LA4285
LM730H
0
20
40
60
80
Time [h]
The mechanical properties are largely unaffected by water absorption,
though its appearance might be observed as opaque when it contains more water.
23
24
Compounding Conditions
of “KURARITY TM”
<Drying Conditions>
Pre-drying is required if your twin screw extruder is not vented.
An air Circulating oven dryer or vacuum oven dryer is recommended.
LA2250 : 60 ºC, 4 hours
LA4285 : 70-80 ºC, more than 6 hours
<Example of compounding process parameters>
Equipment : TEX 44XCT Twin Screw Extruder (JSW)
Barrel Temperature
C2
50 ºC
C3 - C12
170 - 230 ºC
Die head
170 - 230 ºC
Since the melt viscosity of KURARITY TM
depends on shear rate, a twin screw extruder
is suitable for compounding.
＜KURARITYTM＞
Other resins,
Additives, etc
Screw diameter : 44mm, L/D=42
Die head
Hopper
kneading
zone １
Screw rotation : 200 rpm
kneading
zone 2
Watering cutter,
Under water cutter.
Strand cutter,
etc
Cutter
Twin extruder
<Melt Viscosity by Capillary flow tester>
1.E+05
IMPORTANT NOTICE
1.E+05
LA2250
LA4285
1.E+04
Melt Viscosity（Pa・s）
Melt Viscosity（Pa・s）
●
1.E+03
1.E+02
Please refer to the appropriate Material Safety Data Sheet for
1.E+04
further safety information.
●
1.E+01
1.E+02
1.E+03
1.E+04
For medical, health care and food contact applications,
please contact your KURARITYTM representative for
specific recommendations. KURARITYTM should not be used
1.E+02
1.E+01
1.E+00
Shear Rate（1/sec）
160℃
180℃
200℃
In using KURARITYTM, please confirm related laws and regulations,
and examine its safety and suitability for the application.
1.E+03
●
●
1.E+01
1.E+00
Precautions should be taken in handling and storing.
Nothing contained herein constitutes a license to practice under
any patent and it should not be construed as an inducement to infringe
1.E+01
1.E+02
1.E+03
Shear Rate（1/sec）
180℃
200℃
220℃
240℃
in any devices or materials intended for implantation in the human body.
1.E+04
any patent. The user is advised to take appropriate steps to be sure
that any proposed use of the product will not result in patent infringement.
If you need further information on KURARITYTM, please contact ;
< Japan & Asia Pacific >
Kurarity business development
Kuraray Co., Ltd,
Phone: +81 3 6701 1598
E-mail: Kuraray_kurarity@kuraray.co.jp
< Europe, the Middle East, Africa >
BU Elastomer
Kuraray Europe GmbH,
Phone: +49 69 305 35853
E-mail: Elastomere@kuraray.eu
< North, Central and South America >
Kuraray America Inc.
Phone: +1-281-283-1711
E-mail: Septon.sales@kuraray.com
25
26
Compounding Conditions
of “KURARITY TM”
<Drying Conditions>
Pre-drying is required if your twin screw extruder is not vented.
An air Circulating oven dryer or vacuum oven dryer is recommended.
LA2250 : 60 ºC, 4 hours
LA4285 : 70-80 ºC, more than 6 hours
<Example of compounding process parameters>
Equipment : TEX 44XCT Twin Screw Extruder (JSW)
Barrel Temperature
C2
50 ºC
C3 - C12
170 - 230 ºC
Die head
170 - 230 ºC
Since the melt viscosity of KURARITY TM
depends on shear rate, a twin screw extruder
is suitable for compounding.
＜KURARITYTM＞
Other resins,
Additives, etc
Screw diameter : 44mm, L/D=42
Die head
Hopper
kneading
zone １
Screw rotation : 200 rpm
kneading
zone 2
Watering cutter,
Under water cutter.
Strand cutter,
etc
Cutter
Twin extruder
<Melt Viscosity by Capillary flow tester>
1.E+05
IMPORTANT NOTICE
1.E+05
LA2250
LA4285
1.E+04
Melt Viscosity（Pa・s）
Melt Viscosity（Pa・s）
●
1.E+03
1.E+02
Please refer to the appropriate Material Safety Data Sheet for
1.E+04
further safety information.
●
1.E+01
1.E+02
1.E+03
1.E+04
For medical, health care and food contact applications,
please contact your KURARITYTM representative for
specific recommendations. KURARITYTM should not be used
1.E+02
1.E+01
1.E+00
Shear Rate（1/sec）
160℃
180℃
200℃
In using KURARITYTM, please confirm related laws and regulations,
and examine its safety and suitability for the application.
1.E+03
●
●
1.E+01
1.E+00
Precautions should be taken in handling and storing.
Nothing contained herein constitutes a license to practice under
any patent and it should not be construed as an inducement to infringe
1.E+01
1.E+02
1.E+03
Shear Rate（1/sec）
180℃
200℃
220℃
240℃
in any devices or materials intended for implantation in the human body.
1.E+04
any patent. The user is advised to take appropriate steps to be sure
that any proposed use of the product will not result in patent infringement.
If you need further information on KURARITYTM, please contact ;
< Japan & Asia Pacific >
Kurarity business development
Kuraray Co., Ltd,
Phone: +81 3 6701 1598
E-mail: Kuraray_kurarity@kuraray.co.jp
< Europe, the Middle East, Africa >
BU Elastomer
Kuraray Europe GmbH,
Phone: +49 69 305 85984
E-mail: Elastomere@kuraray.eu
< North, Central and South America >
Kuraray America Inc.
Phone: +1-281-283-1711
E-mail: Septon.sales@kuraray.com
25
26
a novel acrylic block copolymer
〈 KURARITY TM 〉General Introduction
1st Ed.2014.05 E