Product Information
Chemicals/Elastomers/Rubber
Liquid rubber that boosts productivity while maintaining the properties of vulcanized rubber
Chemicals/Elastomers/Rubber
Isoprene Derivatives
KURARAY LIQUID RUBBER
- General name
- Liquid rubber
- Sales format
- Liquid
High-viscosity synthetic rubber KURARAY LIQUID RUBBER products are based on isoprene, butadiene and styrene. They are colorless, transparent, almost entirely odorless and low VOC. Functionalized grades are available as reactive plasticizers with far higher molecular weight than normal plasticizers. They are co-vulcanizable and significantly reduce migration.
Applications
Tires
Belts
Hoses
Rubber goods
Tape
Shoes
Adhesives
Coatings
Sealants
Flexo printing plate
Additives for asphalt
Lubricants and bonding agents
Characteristics
Colorless, transparent and low VOC.
Co-vulcanizable and reduces migration to improve shelf life.
Enhances processability.
Reduces mixing time.
Strong tack and adhesive properties.
Functionalized grades available.
Low glass transition temperature (Tg).
Rubber-like soft properties at low temperatures.
Standard grades and properties
| Category | Type | Grade | Structure | Number of functional groups per molecule | Molecular weight | Viscosity (Pa• s, 38ºC) |
Glass transition temperature (ºC) |
|---|---|---|---|---|---|---|---|
| LIR (Isoprene) | Homopolymer | LIR-30 LIR-50 |
 |
- - |
28,000 54,000 |
70 500 |
-63 -63 |
| Block copolymer | LIR-390 |  |
- | 48,000 | 400 | -95 | |
| Carboxylated | LIR-403 |  |
3 | 34,000 | 200 | -60 | |
| LIR-410 |  |
10 | 30,000 | 430 | -59 | ||
| UV curable | UC-102M |  |
2 | 17,000 | 30 | -60 | |
| UC-203M | 3 | 35,000 | 190 | -60 | |||
| Latex | LIR-700 |  |
- | 28,000 | 7.5 (at 25ºC) (Solid cont.= 60wt%) |
-63 | |
| LBR (Butadiene) | Homopolymer | LBR-302 LBR-307 LBR-305 |
 |
- | 5,500 8,000 26,000 |
0.6 1.5 40 |
-85 -95 -95 |
| LBR-352 LBR-361 |
 |
- | 9,000 5,500 |
6 5.5 |
-60 -49 |
||
| L-SBR (St/Bd) | Random copolymer | L-SBR-820 L-SBR-841 |
 |
- - |
8,500 10,000 |
350 100 (at 60ºC) |
-14 -6 |
Catalogues/technical data
Related website
Contact us
Click here for inquires (KURARAY LIQUID RUBBER)- Polymer Marketing and Sales Department,
Elastomer Division - Tokiwabashi Tower, 2-6-4, Otemachi, Chiyoda-ku, Tokyo, 100-0004, Japan
Tel.: +81-3-6701-1616
E-mail: elastomer.info@kuraray.com
