Aqueous vinyl polymer containing coating compositions
CA 1182941 A · Owner: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha · Inventors: Wakabayashi, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coating composition comprising (a) a vinyl type polymer aqueous emulsion obtained by polymerizing a vinyl monomer or monomers in the presence of a neutralized water-soluble, product of an adduct between a substantially amorphous polymer obtained by ring-opening polymerization of dicyclopentadiene represented by the following chemical structural formula: and maleic acid or maleic anhydride; and (b) an oxidation-curable type water-soluble resin with the, proportion of (a) to (b) being within the range of from 5:95 to 95:5 in terms of solids content ratio. The coating composition exhibits good drying properties, good water resistance and good solvent resistance, attributable to the emulsion …
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 February 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 2002.
- 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.