Method of preparing cross-linked polydiorganosiloxane using orga

Details Method of preparing cross-linked polydiorganosiloxane using orga Method of preparing cross-linked polydiorganosiloxane using orga

1979-01-18

1980-11-18

Marquis, Melvyn I.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521170, 528 11, 528 21, 528 28, 528 30, 528 33, C08J 900

Patent

active

042346975

ABSTRACT:
A crosslinked polydiorganosiloxane is prepared by mixing a mercapto-functional polydiorganosiloxane endblocked with organosiloxy units of formulae ##STR1## an organic diisocyanate, a catalyst, such as a tertiary organic amine and water. The resulting product is a sponge if the water is added in the liquid state or a non-porous elastomer if the water in the gas state is allowed to penetrate a blend of the polydiorganosiloxane, organic diisocyanate and tertiary organic amine. Density of sponge prepared by this method can range from about 35 kilograms per cubic meter to about 750 kilograms per cubic meter. A blend of the mercapto-functional polydiorganosiloxane, organic diisocyanate and tertiary organic amine can be used to make sponge by adding water in the liquid state or a non-porous elastomer by exposing it to air.

REFERENCES:
patent: 3070555 (1962-12-01), Bruner, Jr.
patent: 3445419 (1969-05-01), Vanderlinde
patent: 3816282 (1974-06-01), Viventi
patent: 3923705 (1975-12-01), Smith
patent: 4002794 (1977-01-01), Schwarcz
patent: 4039504 (1977-08-01), Homan et al.
patent: 4039505 (1977-08-01), Homan et al.
patent: 4064027 (1977-12-01), Gant
patent: 4066603 (1978-01-01), Homan et al.
patent: 4070328 (1978-01-01), Homan et al.
patent: 4070526 (1978-01-01), Colquhoun
Encyclopedia of Polymer Science and Technology, vol. 15, pp. 449 and 450 (1971).

Affiliated with

Also associated with

Rating

Method of preparing cross-linked polydiorganosiloxane using orga 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 of preparing cross-linked polydiorganosiloxane using orga, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preparing cross-linked polydiorganosiloxane using orga will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-598946