Block copolycarbonates with polyisobutylene-.alpha.-haloketocarb

Details Block copolycarbonates with polyisobutylene-.alpha.-haloketocarb Block copolycarbonates with polyisobutylene-.alpha.-haloketocarb

1996-06-14

1998-02-10

Buttner, David

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

Synthetic resins

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

525 90, 525 92E, 525146, 525148, 528191, C08L 6900, C08G 6418

Patent

active

057170274

ABSTRACT:
This invention relates to block copolycarbonates made from polycarbonate blocks and polyisobutylene-.alpha.-haloketocarboxylic acid blocks (abbreviation: PIB blocks), wherein the PIB blocks may, for example, be obtained by ozonolysis of halogenated butyl rubber, and to blends of these block copolycarbonates with elastomers.

REFERENCES:
patent: 4786690 (1988-11-01), Edwards
patent: 5023299 (1991-06-01), Meuer
patent: 5041502 (1991-08-01), Peters

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