A paint resin emulsion having weatherability
CA 2251706 A1 · Owner: Ide, Hiroshi · Inventors: Ide, Hiroshi; Takagi, Motoyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To provide improved acrylic resin which has weatherability such as the glossretaining ability almost as good as that of the fluorine resin or silicone resin while maintaining the advantages of the conventional acrylic resin binder as paint resin such as the gloss or pigment dispersion stability. The emulsion is characterized in that it comprises in 100 wt.% of resin emulsion component thereof: (a) 0.1 to 10 wt.% of a monomer containing light stabilizing group; and (b) 0.1 to 10 wt.% of a monomer containing alkoxysilyl group. Preferably, it further comprises (c) 0.1 to 10 wt.% of monomer containing ultra-violet absorbent group.
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
- Filed January 7, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2020.
- 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.