Telechelic polyisobutylene and block copolymer derivatives

Details Telechelic polyisobutylene and block copolymer derivatives Telechelic polyisobutylene and block copolymer derivatives

1989-03-24

1991-02-19

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525152, 525167, 525180, 525184, 5253328, C08G 6400, C08G 6364, C08G 6944, C08G 6926

Patent

active

049945262

ABSTRACT:
Block copolymers which include polyisobutylene chain moieties of the formula: ##STR1## wherein n is an integer such that the moiety has a molecular weight contribution of from 5,000 to 30,000 Daltons as determined by gel permeation chromatography are obtained by block copolymerization of appropriate compounds of the formula: ##STR2## wherein n is as defined above and X represents hydroxyl, halogen or alkoxy, with polycarbonates, polyesters, polyamides, poly(ester-amides), polyarylates, polyetherimides or monomer precursors thereof. The block copolymers are useful thermoplastic molding compositions.

REFERENCES:
patent: 3392154 (1968-07-01), Baldwin
patent: 4276394 (1981-06-01), Kennedy et al.
patent: 4316973 (1982-02-01), Kennedy
Wondraczek and Kennedy, Polymer Bulletin, vol. 2 (1980) pp. 675-682.
Liao and Kennedy, Polymer Bulletin, vol. 7 (1982) pp. 233-240.

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