Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1996-06-06
1998-11-24
Lipman, Bernard
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525361, 525364, C08F 842
Patent
active
058408100
ABSTRACT:
There is provided a method of introducing functionality into a copolymer of an isoolefin and an alkylstyrene at the alkylbenzyl carbon atom comprising the steps of: forming a solution of said copolymer in a hydrocarbon solvent; adding to said polymer solution an alkali metal Na, K, Rb, Cs alkoxide and an alkyl lithium compound to form a superbase with the polymer solution; and adding an electrophile to the metalated polymer solution; also provided are the metalated copolymers and the functionalized derivatives therefrom.
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Frechet Jean M. J.
Haque Shah A.
Steinke Joachim H. G.
Wang Hsien-Chang
Cornell Research Foundation Inc.
Exxon Chemical Patents Inc
Kurtzman Myron B.
Lipman Bernard
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