Process for preparing organopolysiloxane gum

Details Process for preparing organopolysiloxane gum Process for preparing organopolysiloxane gum

1994-01-31

1995-11-21

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 31, 528 33, 528 34, 528 37, 528 38, 528 41, C08G 7704

Patent

active

054688302

ABSTRACT:
A siloxane gum is prepared by adding a silane or siloxane having two hydrolyzable groups in a molecule to a silanol-terminated organopolysiloxane in such an amount to give a molar ratio of silanol group/hydrolyzable group of from 0.5 to 3 and effecting condensation polymerization. The resulting organopoly-siloxane has a degree of polymerization of higher than 1,000 and a minimized content of low-molecular weight cyclic siloxanes of less than 5,000 ppm.

REFERENCES:
patent: 4673750 (1987-06-01), Beers et al.

Affiliated with

Also associated with

Rating

Process for preparing organopolysiloxane gum does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing organopolysiloxane gum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing organopolysiloxane gum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1138041