Thermoplastic elastomers based upon chlorinated polyethylene...

Details Thermoplastic elastomers based upon chlorinated polyethylene... Thermoplastic elastomers based upon chlorinated polyethylene...

C - Chemistry, Metallurgy

08

L

400/3080, 400/50

C08L 23/28 (2006.01) C08J 3/24 (2006.01) C08K 5/45 (2006.01) C08K 5/47 (2006.01) C08L 23/02 (2006.01)

Patent

CA 1336992

Thermoplastic vulcanizates are prepared by curing, at least partially by dynamic vulcanization, blends of chlorinated polyethylene and crystalline thermoplastic polymers such as polypropylene. Inclusion of a plasticizing material or extender oil, e.g. trioctyl trimellitate, enhances softness and oil resistance of the blends. Vulcanizing materials include a basic material, normally added with the chlorinated polyethylene, and a derivative of 2,5-dimercapto-1,3,4-thiadiazole or a combination of 2,5-dimercapto-1,3,4-thiadiazole and an activator material such as an amine having a boiling point of 110C or higher and a pk value less than 4.5.

594285

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