Mixtures of polydiorganosiloxane-polycarbonate block co-condensa

Details Mixtures of polydiorganosiloxane-polycarbonate block co-condensa Mixtures of polydiorganosiloxane-polycarbonate block co-condensa

1988-07-18

1990-03-27

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...

525464, 525474, C08L 5300

Patent

active

049121650

ABSTRACT:
The present invention relates to mixtures of polycarbonates and polyisobutylenes, polydiorganosiloxane-polycarbonate block cocondensates being employed as the polycarbonates and polyisobutylene homopolymers or polyisobutylene-isoprene copolymers as the polyisobutylenes. If appropriate, the moulding compositions can also contain ethylene homo- or copolymers.

REFERENCES:
patent: 3189662 (1965-06-01), Vaughn
patent: 3431224 (1969-03-01), Goldblum
patent: 3679774 (1972-07-01), Le Grand
patent: 3819744 (1974-06-01), Buchner
patent: 4224215 (1980-09-01), Macke
patent: 4569970 (1986-02-01), Paul et al.
B. M. Beach, R. P. Kanbour and A. R. Schultz-Journal of Polymer Science, Polymer Letters Edition, vol. 12, 1974, pp. 247-252.

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