High ring and ball softening point hot melt backsize adhesive composition
CA 1062828 A · Owner: E.I. Du Pont De Nemours And Company · Inventors: Wright, Kenneth Y. (Jr.)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Backsize compositions which result in tufted, carpets of improved temperature resistance comprise a, blend of an ethylene/vinyl ester copolymer a low, molecular weight high density polyethylene paraffin, wax, filler, a dicyclopentadiene alkylation polymer and an aliphatic thermoplastic hydrocarbon resin substantially free of polymerized aromatics, and optionally an, antioxidant.
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 September 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 18, 1996.
- 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.