Rheology controlled fabric printing composition and method
CA 2017249 C · Owner: Winston, Philip E. Jr. · Inventors: Ortega, Theresa M.; Winston, Philip E. Jr.; Clare, Kenneth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition and its method of use are disclosed for controlling rheology of an aqueous dye which composition, comprises 1-30 parts of a gum selected from the group consisting of xanthan gum, rhamsan gum welan gum and, mixtures thereof and 70-99 parts of a water soluble polysaccharide having alginate equivalent rheology preferably an alginate. Also disclosed is a color imparting composition for fabric or carpet printing which comprises 90-99% of an aqueous dye component and 1-10% of the rheology control component. The polysaccharide is preferably an alginate, starch, cellulosic polymer or guar gum or mixtures thereof.
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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 May 22, 1990 and granted July 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 2012.
- 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.