Process for the production of polycarbonate-polyisobutylene bloc

Details Process for the production of polycarbonate-polyisobutylene bloc Process for the production of polycarbonate-polyisobutylene bloc

1997-03-12

1998-05-05

Warzel, Mark L.

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

Synthetic resins

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

525 92E, 525152, 525468, C08G 8102, C08G 6418

Patent

active

057475890

ABSTRACT:
The present invention provides a process for the production of polycarbonate-polyisobutylene block cocondensates from thermoplastic aromatic polycarbonates and reactive polyisobutylenes in the melt, as well as mixtures of the block cocondensates with non-reactive polyisobutylenes.

REFERENCES:
patent: 4798873 (1989-01-01), Meurer et al.
patent: 4845158 (1989-07-01), Peters.
patent: 5525674 (1996-06-01), Ebert et al.

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