Polymers containing polysiloxane for anti-crease finish of textiles containing cellulose
CA 2443965 A1 · Owner: Schneider, Tanja · Inventors: Chrisstoffels, Lysander; Schneider, Tanja; Detering, Juergen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invnetion realtes to a method for anti-crease finishing of textiles containing cellulose by treating said textiles with a finihing agent and drying the treated textiles. The invention is characterized in that the finishing agent contains one or more water-soluble or water-dispersible polymers containing polysiloxane, which are obtained by radical polymerization of: (a) 10 to 99 percent by weight (a1) 90 to 100 percent by weight of monomers ethylenically unsaturated once and (a2) 0 to 10 percent by weight monomers ethylenically unsaturated several times wherein the sum of (a1) and , (a2) equals 100 percent by weight in the presence of (b) 1 to 90 percent by weight of silicon …
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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
- Filed April 10, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 10, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2024.
- 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.