Textile coatings based on ethylene vinyl acetate-maleate copolymers
CA 1296959 C · Owner: National Starch And Chemical Corporation · Inventors: Mudge, Paul R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Woven pile fabrics, particularly upholstery fabrics and corduroy characterized by a superior balance of strength and softness are backcoated utilizing an aqueous emulsion prepared by the emulsion polymerizaticn of a vinyl ester of an alkanoic acid interpolymerized with 10 to 30% by weight ethylene; 15 to 40% by weight of a C4-C10 dialkyl maleate; 1 to 5% by weight of oopolymerizable N-methylol containing monomer; 0 to 4% by weight of an olefinically unsaturated carboxylic acid and 0 to 1% by weight of a polyethylenically unsaturated comonomer.
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
- Granted March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
- 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.