Process for imparting wrinkle resistance to cellulosic textile materials and materials obtained thereby
CA 1160004 A · Owner: American Cyanamid Company · Inventors: Remley, Kenneth H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
28,331, PROCESS FOR IMPARTING WRINKLE RESISTANCE TO CELLULOSIC TEXTILE MATERIALS AND, MATERIALS OBTAINED THEREBY ABSTRACT, The invention is an improvement which comprises utilizing an aqueous mixture of cyanamide and at least one phosphoric acid which contains about 5.0 to 7.5% by weight of cyanamide in a process for imparting wrinkle resistance to a ibrous cellulosic textile material comprising contacting the material with an aqueous mixture of cyanamide and at least one phosphoric acid, wherein the mole ratio of cyanamide to phosphoric acid is about 2:1 to 3:1 to, deposit thereon about 3.0-6.4% by weight of cyanamide and about 4-9% by weight of the phosphoric acid heating, the treated …
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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 10, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 10, 2001.
- 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.