Method for making silarylenesiloxane-polydiorganosiloxane block

Details Method for making silarylenesiloxane-polydiorganosiloxane block Method for making silarylenesiloxane-polydiorganosiloxane block

1976-11-11

1978-07-25

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

528 11, C08L 8310

Patent

active

041029410

ABSTRACT:
A method is provided for making silarylenesiloxane-polydiorganosiloxane block polymers, based on the reaction between a silarylenesilanediol and a silanol terminated polydiorganosiloxane in the presence of a condensation catalyst in the form of an amine salt of certain carboxylic acids. A carbonyl containing organic compound, such as phthalic anhydride, is employed prior to a subsequent devolatilization step to facilitate the removal of amine-carboxylic acid catalyst residues.

REFERENCES:
patent: 3160601 (1964-12-01), Hyde
patent: 3202634 (1965-08-01), Merker
patent: 3959403 (1976-05-01), LaRochelle

Affiliated with

Also associated with

Rating

Method for making silarylenesiloxane-polydiorganosiloxane block does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for making silarylenesiloxane-polydiorganosiloxane block , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making silarylenesiloxane-polydiorganosiloxane block will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1421154