Wire coating composition for restoration of polyethylene insulation
CA 1215191 A · Owner: Minnesota Mining And Manufacturing Company · Inventors: Pokorny, Richard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An insulating restorative composition for wire, on which polyethylene insulation has degraded comprises an, admixture of an aliphatic or cycloaliphatic polyisocyanate containing at least two isocyanate groups a monofunctional, alcohol having a molecular weight in the range of 200 to 1,500, and a tri- or tetra-functional aliphatic or cycloaliphatic polyol having a molecular weight in the range of 100 to 900.
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 December 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 2003.
- 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.