Silicone resins having good thermal stability

Details Silicone resins having good thermal stability Silicone resins having good thermal stability

1976-08-26

1978-04-18

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 18S, 260 37SB, 260 465R, 260824R, 260825, C08K 501

Patent

active

040850846

ABSTRACT:
A process for producing a silicone resin composed solely of difunctional siloxy units comprising hydrolyzing a diorganodihalosilane in a heterogeneous hydrolysis mixture having therein water, acetone, a water-immiscible organic solvent and optionally, an alcohol; wherein said hydrolysis must take place within ten minutes, and separating the water layer from the water-immiscible solvent silicone resin layer.
The silicone resin is further purified and bodied in subsequent process steps. There is also provided by the present invention a silicone resin mixture composed of the above difunctional silicone resin and a silicone resin composed of trifunctional siloxy units and difunctional siloxy units which silicone resin mixture has good thermal stability at temperatures up to 700.degree. F.

REFERENCES:
patent: 3375223 (1968-03-01), Merrill
patent: 3489782 (1970-01-01), Pruvost et al.
patent: 3865766 (1975-02-01), Merrill

Affiliated with

Also associated with

Rating

Silicone resins having good thermal stability does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Silicone resins having good thermal stability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silicone resins having good thermal stability will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2146342