Special diorganosiloxane block copolycarbonates

Details Special diorganosiloxane block copolycarbonates Special diorganosiloxane block copolycarbonates

1991-04-01

1992-05-12

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...

528 26, 528 29, 528 31, C08F28300, C08G 7704

Patent

active

051129256

ABSTRACT:
The present invention relates to a process for the preparation of polydiorganosiloxane block copolycarbonates having special bridging members between the siloxane blocks and the carbonate blocks, and the polydiorganosiloxane block copolycarbonates which are obtainable by the process according to the invention and with which optionally further customary additives can be mixed.

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patent: 4612403 (1986-09-01), Virnig
patent: 4681922 (1987-07-01), Schmidt
patent: 5011899 (1991-04-01), Sybert

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