ISOLENE Liquid Synthetic Rubber
The Isolene products are low molecular weight, liquid polymers of synthetic rubber. They are translucent, honey-colored liquids in bulk volume and clear in thin films. The color and clarity are ideal for pressure sensitive adhesives (PSA), UV curable polymer systems, and S-I-S and S-B-S block copolymer compounding.
The Isolene products improve adhesive and polymer compounding. They act as plasticizers to reduce cycle time and energy consumption. They cure into the polymer matrix and remain non-fugitive in the final product.
Isolene polymers are available in two commercial grades—The regular Isolene polymer and the Isolene S-Grades. The S-Grades contain an antioxidant to improve the long-term color stability. Both grades come in two standard viscosities.
Typical Applications
The light colored Isolene products are ideal for compounding PSA. The low molecular weight liquid polymers are reactive plasticizers that improve several adhesive attributes:
- Impart green tack
- Maintain adhesion at low temperatures
- Improve coating and flow characteristics
- Improve adhesion to flexible substrates
- Avoid bleed-through associated with other plasticizers
The Isolene products improve the solubility of polymers in the adhesive. They reduce the required energy and time to compound S-I-S pressure sensitive adhesives.
Isolene products can soften hot melt adhesives and lower their melt temperature.
Isolene polymers form the base resin in such UV-cured systems as PSA, flexible printing plates, and other radiation cured systems.
Isolene liquid synthetic rubber can replace liquid natural rubber in operations that require a lighter-color, lower-odor product. Some of the more common liquid rubber applications include:
Rubber and polymer processing aid.
Reactive vehicle for powdered additives.
Rheology modifier for lubricants.
Isolene reduces the viscosity of uncured rubber when added at levels of 5-to-20 parts of resin. This reduces power requirements, improves blend consistency, and reduces the risk of scorching. It can be used with natural rubber and such polymers as polychloroprene, EPDM, polybutadiene, SBR and acrylonitrile-isoprene.
The lower viscosity Isolene products improve the wetting of synthetic fibers for polymer matrices. Isolene polymers are compatible with a wide range of rubber additives and such powdered additives as pigments, graphite and molybdenum disulfide. They make excellent vehicles to introduce dispersed powdered concentrates into final compound.
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