Fabric enhancement compositions
CA 2359438 A1 · Owner: Ehle, Michael · Inventors: Severns, John Cort; Zhang, Shulin; Boeckh, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to fabric enhancement compositions which provide reduced fabric abrasion damage. The compositions of the present invention comprise: a) from about 0.01% by weight of a fabric enhancement system, said , fabric enhancement system comprising one or more modified polyamine compounds said modified polyamine compounds are selected from: i) (PA)w(T)x; ii) (PA)w(L)z; iii) (PA)w(T)xyLz; and iv) mixtures thereof; wherein PA is a grafted or non-grafted, modified or unmodified polyamine backbone unit T is , an amide-forming polycarboxylic acid crosslinking unit and L is a non-amide , forming crosslinking unit; provided that for compounds of type (i) and (iii) the …
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 February 16, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 16, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 16, 2022.
- 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.