Process for the production of aminoplast dispersions
CA 1091385 A · Owner: Bayer Aktiengesellschaft · Inventors: Ick, Jurgen; Balle, Gerhard; Wagner, Kuno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The instant invention is directed to a process for the production of dispersions of aminoplast condensates in organic polyhydroxyl compounds by the oligo-condensation or polycondensation of substances capable of aminoplast formation in said, organic polyhydroxyl compounds the improvement wherein said, dispersions are reacted at from about -5°C to about 180°C with an amine compound selected from the group consisting of: (a) organic aliphatic or cycloaliphatic mono or polyamines containing at least one primary or secondary amine group, and which are gaseous or liquid at room temperature, and, (b) organic alkyl containing at least one primary or secondary amine group and which are gaseous or …
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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 December 9, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 1997.
- 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.