Polysaccharide aldehydes and acetals as permanent press agents for textiles
CA 2283049 A1 · Owner: Hazelwood, Michael C. · Inventors: Cimecioglu, A. Levent; Hazelwood, Michael C.; Rodrigues, Klein A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for imparting permanent press properties to a textile containing cellulose fibers. The method involves applying an aqueous solution of a polysaccharide aldehyde and/or acetal at a pH of 1 to 8 to a textile and , heating, the textile at a sufficient temperature for a sufficient time to react the polysaccharide aldehyde and/or acetal with the textile wherein water is removed, from the textile, to impart permanent press properties to the textile. The method, of the present invention provides permanent press properties to textiles treated, therewith and increases the resistance of such textiles to future laundering abrasion. Such treated textiles display a significant reduction in …
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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 September 23, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2021.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.