High temperature resistant fast soldering wire enamel
CA 1318431 C · Owner: Schenectady Chemicals, Inc. · Inventors: Cicero, Robert W.; Yanagihara, Kunihiko; Stanton, James M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The presentinvention relates to electrical insulating wire enamels which give high temperature resistance as well as fast soldering capability to a magnet wire when it is coated (insulated) by this enamel which is a polyurethane wire enamel composition comprising a mixture of (a) a blocked isocyanate and (b) polyesterimide resin, wherein said polyesterimide resin (b) comprises (i) units of a polyester of alcohols and at least one carboxylic acid and (ii) diimide dicarboxylic acid units, said alcohols including at least one alcohol which contains isocyanurate groups, and wherein said blocked isocyanate (a) is prepared from an isocyanate selected from the group consisting of diphenylmethane …
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 May 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 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.