Modified organopolysiloxane compositions
CA 1104744 A · Owner: Sws Silicones Corporation · Inventors: Getson, John C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modified organopolysiloxane composition is provided herein. Such organopolysiloxane composition is obtained from the polymerization of (1) a monomer having ethylenic unsaturation in the presence of (2) an organohydrogenpolysiloxane fluid having a viscosity of from 10 to 1,000,000 centipoise at 25°C. in which the organohydrogenpolysiloxane fluid is present in an amount of from 20 to 95 percent by weight based on the weight of monomer (1) and organohydrogenpolysiloxane (2) and (3) a free radical initiator to form a composition having in-situ generated particulate matter dispersed therein and having a polymeric organic group which is constituted of recurring units derived from monomer (1) …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.