Copolymers containing amino groups, process for their preparation and their use in coating agents
CA 1329302 C · Owner: Jung, Werner Alfons · Inventors: Jung, Werner Alfons
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Copolymers containing amino groups process for their, preparation and their use in coating agents The invention relates to copolymers containing amino groups and having an amine number of 30 to 150 mg of KOH/g and a number-average molecular weight of 1,500 to 8,000 which can be prepared from copolymers containing alkyl ester groups by aminolysis with polyamines, processes for their preparation and their use as binder components in coating agents. The coating agents according to the invention are especially suitable for repair lacquering of motor vehicles and in particular for use as a primer and filler material.
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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 May 3, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2011.
- 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.