.beta.-AMINO-.beta.-PROPIOLACTAM DERIVATIVE AND MOISTURE CURABLE POLYURETHANE COMPOSITION THEREOF
CA 1310644 C · Owner: Kamiyama, Masayuki · Inventors: Kamiyama, Masayuki; Aoki, Masaaki; Tani, Mayumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to .beta.-amino-.beta.-propiolactam derivativatives, moisture curable polyurethane compositions and their applications. The products of this invention have excellent characteristics such as good storage stability, rapid curing with atmospheric moisture and freedom from foaming. More particularly condensed compounds are obtained by, reacting specific secondary diamines such as piperazine and 1,3-(4,4'-dipiperidyl)propane with monoaldehyde having at least 3 carbon atoms, for example, isobutylaldehyde and 2-phenylpropylaldehyde. The .beta.-amino-.beta.-propiolactam derivatives are prepared by reacting the condensed compounds with monoisocyanate such as phenyl isocyanate …
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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 November 24, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 24, 2009.
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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.