Fluorinated organosiloxane copolymers
CA 1250389 A · Owner: Dow Corning Corporation · Inventors: Lim, Thomas F.; Lee, Chi-Long; Wright, Antony P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A novel class of resinous organosiloxane polymers includes triorganosiloxy, fluorinated organosiloxy SiO4/2, and silicon-bonded hydroxyl groups. The fluorine-containing hydrocarbon radicals are bonded to silicon by means of a sequence of at least two methylene groups. Preferred organosiloxane polymers stabilize the cellular structure of polydimethylsiloxane foams during curing.
Read the whole patent
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 February 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 21, 2006.
- 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
Timeline From CIPO dates
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.