TSL's BR Product List
 
Characteristics of UBEPOL BR® and UBEPOL VCR®

Rubber Application

 
Mooney Viscosity（ML1+4,100°C)
Cis1,4 content（wt%）
Characteristics
BR150
43
98

  • Standard grade of UBEPOL BR®
  • Well-balanced between processability and physical properties
BR150B
40
97
  • High chain branched type of BR150
  • Easy compounding
  • Good open roll mill processability under high loading recipe
BR130B
29
96
  • Lower mooney viscosity type of BR150B
  • More excellent processability than BR150B
  • Most suitable for high loading of carbon black
BR150L
43
98
  • High chain linearity type of BR150
  • Good physical properties;Excellent abrasion resistance, High rebound,
    Lower heat build up
VCR412
45
98*
  • Standard grade of UBEPOL VCR®
  • Superior processability such as extrusion and mill behavior
  • High hardness and modulus, and superior cut growth property
VCR617
62
98*
  • Special grade of UBEPOL VCR®
  • Superior processability compared to VCR412
  • Higher hardness and modulus compared to VCR412
* Microstructure of Matrix Polymer

HIPS Application

 
Mooney Viscosity（ML1+4,100°C)
5wt.% Solution viscosity in Styrene
Characteristics
BR15HB
40
60
  • Standard grade UBEPOL BR® for HIPS
  • Low solution viscosity
BR15H
43
92
  • In between linearity and solution viscosity of BR15HB and BR15HL
BR15HL
43
135
  • High solution viscosity
  • Good balance between gloss and impact resistance
BR13HB
30
41
  • Lowest solution viscosity
  • Excellent gloss for HIPS
BR14H
33
58
  • Improved solubility of rubber in styrene
  • Short dissolving time in styrene monomer
  • Easy to control rubber particle size in HIPS
Properties of UBEPOL BR®

Table.1　Raw polymer properties

Grade

 

 

BR150

BR150B

BR130B

BR150L

Mooney viscosity
  
ML1+4,100°C
43
40
29
43
T-c p*1
 
(cps.)
75
48
30
105
Micro
structure
 
cis
(wt%)
98
97
96
98
trans
(wt%)
1
2
2
1
vinyl
(wt%)
1
1
2
1
Molecular weight
and
distribution
Mw
(104)
53
50
43
52
Mn
(104)
19
15
13
21
Mw/Mn
 　
 
2.8
3.3
3.3
2.5
Oil content
Paraffinic
(phr)
-
-
-
-
Specific gravity
  
（g/cm3）
0.91
0.91
0.91
0.91
Stabilizer
    
Non-staining
Packages
   　
35kg bale
*1 ; 5ｗｔ％ solution viscosity in toluene at 25°C
*2 ; Properties of Matrix Polymer

Table.2　Compound properties

Grade
 
 
BR150
BR150B
BR130B
BR150L
Mooney viscosity Curing rate
 
ML1+4,100°C
62
59
42
71
ML
（dN・m)
2.0
1.9
1.5
2.1
 
MH
（dN・m)
10.1
9.0
8.1
10.9
 
Ts1
min.
3.0
3.4
3.7
2.8
　
Tc(50)
min.
8.5
8.6
8.8
8.3
 
Tc(90)
min.
11.7
12.1
12.5
11.4
Recipe ; ASTM D3189
(BR133P ; ASTM　D3484）
Table.3　Vulcanizate properties
Grade
 
 
BR150
BR150B
BR130B
BR150L
Hardness
Type A
　
64
62
60
65
100% Modulus
　
MPa
2.4
2.4
2.1
2.5
200% Modulus
　
MPa
6.5
6.0
5.3
6.9
300% Modulus
　
MPa
12.5
11.4
9.8
13.1
Tensile strength
　
MPa
16.0
15.7
12.9
17.1
Elongation
　
%
380
370
370
390
Tear resistance
 
kN／m
56
51
48
61
Rebound
BS
%
57
54
50
60
Compression set
 
%
22
25
28
20
Heat build-up
ΔT
°C
27
36
44
22
 
P.S
%
8
14
26
5
Pico abrasion
 
INDEX
209
183
158
235
Lambourn
slip rate 20%
INDEX
100
90
84
109
abrasion
slip rate 60%
INDEX
100
87
81
113
Cut growth （2mm→15mm)
  
time
4700
5100
5300
4100
Cut generation
　
x104time
27
18
14
>30
Curing time　；　50min
Properties of UBEPOL VCR®
Table.1　Raw polymer properties
Grade
 
 
VCR412
VCR617
Mooney viscosity
 
ML1+4,100°C
45
62
n-Hexane Insolubles*¹
  
(wt%)
12.0
17.0
Micro
structure *²
 
cis
(wt%)
98
98
trans
(wt%)
1
1
vinyl
(wt%)
1
1
Specific gravity
 
（g/cm3）
0.91
0.91
Stabilizer
 
 
Non-staining
Packages
 
 　
 
35kg　bale
*1 ; SPB content in VCR
*2 ; Microstructure of Matrix Polymer
Table.2　Compound properties
Grade
 
 
VCR412
VCR617
BR150
Mooney viscosity
 
ML1+4,100°C
71
98
62
Curing rate
ML
（dN・m)
2.8
3.9
2.0
 
MH
（dN・m)
13.8
15.7
10.1
 
Ts1
min.
1.9
1.6
3.0
　
 
Tc(50)
min.
8.3
7.6
8.5
 
Tc(90)
min.
12.2
10.8
11.7
Recipe ; ASTM D3189
Table.3　Vulcanizate properties
Grade
 
 
VCR412
VCR617
BR150
Hardness
Type A
　
 
75
81
64
100% Modulus
 　
 
MPa
4.6
6.3
2.4
200% Modulus
 　
 
MPa
11.0
13.7
6.5
300% Modulus
 　
 
MPa
ー
ー
12.5
Tensile strength
 　
 
MPa
16.4
16.2
16.0
Elongation
 　
 
%
290
250
380
Tear resistance
 
kN／m
62
65
56
Rebound
BS
%
50
46
57
Compression set
 
%
25
24
22
Heat build-up
ΔT
°C
33
36
27
 
P.S
%
12
13
8
Pico abrasion
 
INDEX
249
260
209
Lambourn
slip rate 20%
INDEX
72
62
100
abrasion
slip rate 60%
INDEX
67
59
100
Cut growth （2mm→15mm)
 
time
28000
37000
4700
Cut generation
 　
 
x104time
14
7.7
27
Curing time　；　50min
Properties of UBEPOL BR® for HIPS application
Table.1　Raw polymer properties
Grade 
BR15HB
BR15H
BR15HL
BR13HB
BR14H
Mooney Viscosity (ML1+4, 100°C)
40
43
43
30
33
Volatile Matter (wt.%)
0.5
0.5
0.5
0.5
0.5
Ash Content (wt.%)
0.05
0.05
0.05
0.05
0.05
Micro Structure (%)
Cis
97
98
98
96
97
Trans
2
1
1
2
2
Vinyl
1
1
1
2
1
Molecular weight
Mw (×104)
56
58
57
49
50
and
Mn (×104)
15
19
23
13
15
distribution
Mw/Mn
3.7
3.1
2.5
3.8
3.3
Linearity of Molecular Chain
less
medium
more
less
medium
5wt.% Solution
Solution Viscosity (cps)
60
92
135
41
58
in
Styrene Insolubles (wt.%)
0.003
0.003
0.003
0.003
0.003
Styrene
APHA Color
10
10
10
10
10
Remarks
 

Branching
Type
(Standard Grade)
 
Linear Type
Good Gloss
Good Balance between Gloss and Impact Strength

Table.2　Physical properties of HIPS
Grade  
BR15HB
BR15H
BR15HL
BR13HB
BR14H
Swelling Index  
10.9
10.7
10.6
11.2
10.8
MEK/Acetone Insolubles (wt.%)
23.0
23.3
23.5
22.1
23.1
Rubber Particle Size (μm)
2.1
2.5
2.7
1.6
1.9
Tensile Strength (MPa) at yield
30
29
29
31
30
at break
29
29
30
30
29
Elongation (%)  
22
23
25
20
22
Izod Impact Strength (J/m)
76
75
75
72
78
Gloss    
59
56
51
68
66
Vicat Softening Point (°C)
101
101
101
101
101
Melt Flow Index (g/10min.)
3.6
3.5
3.6
3.6
3.6
Rubber Content = 7wt.%