Process for improving polymer fiber properties and fibers produced thereby
CA 1248709 A · Owner: Intera Company, Ltd. · Inventors: Dyer, Michael E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A method is provided for treating polyester and, acrylic polymer fibers or fibrous structures made thereof to permanently improve the antistatic, hygroscopic dye, receptive, soil release, inter-fiber adhesion and bonding properties of the fibers and structures. The method involves contacting the fibers with an aqueous solution containing at least one unsaturated monomer and having an acid pH and a temperature between about 60°C and about 100°C. After allowing the solution to uniformly disperse among the fibers, so that the monomer intimately contacts the fiber surfaces, polymerization of the monomer on the fiber surfaces is initiated by a polymerization initiator …
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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 January 17, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 17, 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.