Process for the treatment of textile materials with an antimicrobial agent
CA 2249913 A1 · Owner: Ciba Specialty Chemicals Holding Inc. · Inventors: Mao, Jianwen; Schnyder, Marcel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the incorporation of an antimicrobial agent into a fibre fabric or piece goods is, described comprising treating said material by passing said fibre into an aqueous liquor containing an antimicrobial agent selected from (a) halogeno-o-hydroxydiphenyl compounds; (b) phenol derivatives;, (c) benzyl alcohols; (d) chlorohexidine and derivatives thereof; (e) C12-C14alkylbetaines and C8-C18fatty acid amidoalkylbetaines; (f) amphoteric surfactants;, (g) trihalocarbanilides; (h) quaternary and polyquaternary compounds; and (i) thiazole compounds.
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
- Filed October 9, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2020.
- 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.