Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1997-02-13
1999-09-28
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526135, 526196, 526237, 526347, 5263487, 526912, 5253334, 525355, 525356, 522160, C08F 214, C08F21208
Patent
active
059590491
ABSTRACT:
A process for producing a copolymer of isoolefin having between 4 and 7 carbon atoms and para-alkylstyrene is provided. The process comprises admixing the isoolefin and the para-alkylstyrene in a copolymerization reactor under copolymerization conditions in the presence of a diluent, and a Lewis Acid catalyst, and maintaining the copolymerization reactor substantially free of impurities which can complex with the catalyst or copolymerize with the isoolefin or the para-alkylstyrene.
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Powers Kenneth William
Wang Hsien-Chang
Cohen Harvey L.
Exxon Chemical Patents Inc
Kurtzman Myron B.
Peebles Brent M.
Teskin Fred
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