Treatment of fibres
CA 1087334 A · Owner: Dow Corning Limited · Inventors: Burrill, Peter M.; Rankin, Frank S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Composition comprising (A) a polydiorganosiloxane having molecular weight or at least 2500 and terminal -OX groups in which X is hydrogen, lower alkyl or alkoxyalkyl at least two of the substituents in the polydiorganosiloxane containing at least two amino groups the remainder preferably being methyl radicals, and (B) an organosiloxane having at least 3 silicon-bonded hydrogen atoms. The composition can be applied to keratinous fibres to render such fibres shrink resistant and are particularly suitable for application in the form of an aqueous emulsion.
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 October 7, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 1997.
- 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.