Disintegration type, crosslinked acrylic resin particles
CA 1303282 C · Owner: Kanda, Kazunori · Inventors: Kanda, Kazunori; Yamamori, Naoki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disintegration type crosslinked acrylic resin particles, having an average grain diameter of 0.01 to 250µ and containing metal ester bond bearing crosslinks uniformly distributed within the particle bodies are provided in spherical form by the polymerization of 5 to 98 % by weight of at least one metal ester bond bearing multifunctional polymerizable monomer and 95 to 2 % by weight of at least one other polymerizable monomer. The instant resin particles are specifically useful as resinous filler in an antifouling paint and other compositions.
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 June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
- 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.