Spirobiindanol polysiloxanes

Details Spirobiindanol polysiloxanes Spirobiindanol polysiloxanes

1988-11-07

1990-03-27

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 25, 528 29, 556462, C08G 7706

Patent

active

049121898

ABSTRACT:
Spirobiindanol polydiorganosiloxane compounds are prepared by the reaction of an .alpha., .omega.-dichloropolydiorganosiloxane with a spirobiindane bisphenol in the presence of an acid acceptor. They are useful as intermediates in the preparation of copolysiloxanecarbonates.

REFERENCES:
patent: 3821325 (1974-06-01), Merritt, Jr. et al.
patent: 3832419 (1974-08-01), Merritt, Jr.
patent: 4605789 (1986-08-01), Silvis et al.
patent: 4672102 (1987-06-01), Silvis et al.

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