| 摘要 |
1296322 Curing elastomers PENNWALT CORP 1 March 1971 5696/71 Headings C3E and C3P [Also in Division C2] Elastomers are cured by incorporating thereon a compound of the formula wherein R 1 and R 3 are alkyl or aryl groups and R 2 and R 4 are alkyl groups or R 1 and R 2 and/or R 3 and R 4 form part of a ring, and x is from 2 to 6. Specified elastomers are natural rubber, styrene-butadiene rubbers, acrylonitrile-butadiene rubbers, polychloroprene and ethylenepropylene terpolymers. |
