Polyamides of 1,4-cyclohexane dicarboxylic acid and 5-methyl-1,9-nonanediamine and fibers thereof
CA 1061938 A · Owner: Phillips Petroleum Company · Inventors: Hill, H. Wayne (Jr.); Campbell, Robert W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
POLYAMIDES OF 1,4-CYCLOHEXANE DICARBOXYLIC ACID AND 5-METHYL-1,9-NONANEDIAMINE AND FIBERS THEREOF ABSTRACT OF THE DISCLOSURE, A new polyamide composed at least primarily of 1,4-cyclohexane dicarboxylic acid and 5-methyl-1,9-nonanediamine the polyamide having less, than 5 olefinic double bonds per 100 diamine units an inherent viscosity, of at least about 0.6 a polymer melt temperature of at least about 200°C a Tg in the range of about 90 to about 130°C and a Tm in the range of, about 260°C to about 310°C can be formed into fibers without the use of plasticizers. Such fibers can be produced with a boiling water shrinkage of less than 30 percent.
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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 September 4, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 4, 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.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.