Nitrogen-containing water-soluble compounds
CA 1313672 C · Owner: Muszik, Janos · Inventors: Schroer, Wolf-Dieter; Suling, Carlhans; Bachem, Henning
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Nitrogen-containing water-soluble compounds A b s t r a c t, Water-soluble crosslinkable compounds which are obtainable by reaction of reaction products containing, halogenohydrin groups, of ammonia or mono- or polyamines and an epihalogenohydrin or 1,3-dihalogeno-2-hydroxypropane with inorganic bases and subsequent reaction of the resulting compounds, which contain epoxy groups with, halogen-free acids or derivatives thereof to give compounds containing 1-acyloxy-2-hydroxypropyl groups are used for providing paper with a wet-strength finish for, aftertreatment of cellulose dyed with reactive and direct dyestuffs and for finishing wool.
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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 February 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2010.
- 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.