Moisture-curing, storage stable, single-component polyurethane systems
CA 1205249 A · Owner: Basf Aktiengesellschaft · Inventors: Druschke, Wolfgang; Klahr, Erhard; Foerster, Hans-Juergen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The object of this invention is a moisture-curing storage stable, single-component polyurethane system comprising:, A. a polyurethane prepolymer with a free isocyanate content of 1 to 5 percent by weight;, B. a dialdimine having the formula R-N=CH-C(CH3)2-CH2-O-CO-CH-(CH3)22, in which R is a divalent aliphatic radical with 2 to 10 carbon atoms aliphatic radical having 4 to 10 carbon atoms and containing ether oxygen and/or lower alkylamino nitrogen atoms, cycloaliphatic radical with 6 to 15 carbon atoms or, aromatic radical with 6 to 21 carbon atoms; and, C. an acid catalyst selected from the group consisting of aliphatic carboxylic acids, aromatic carboxylic acids, toluenesulfonic acid …
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 27, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 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.