Water-dilutable binders and their use for coating materials, in particular in automotive construction
CA 1338690 C · Owner: Herberts Gesellschaft Mit Beschrankter Haftung · Inventors: Gobel, Armin; Patzschke, Hans-Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a water-dilutable binder and its use for the preparation of aqueous coating materials and for coating purposes. The binder can be used to provide an aqueous binder system which is suitable for the production of stone-chip-resistant coatings. The waterdilutable binder contains A) 40 to 90% by weight of base resins which become water-dilutable as a result of neutralization with acids and have a number average molecular weight Mn of 500 to 20,000 and B) 10 to 60% by weight of a completely blocked polyisocyanate mixture consisting of (1) one or more terminal blocked diisocyanates which contain urethane groups and optionally urea groups, are free of OH groups and are …
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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 5, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2013.
- 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.