Curable resin composition
CA 1338575 C · Owner: Kansai Paint Company, Limited · Inventors: Iwasawa, Naozumi; Isozaki, Osamu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a curable resin composition which comprises a curable resin containing polymerizable unsaturated group and aprotic onium-containing group of the formula, (I), wherein R1 means a hydrogen atom or a hydrocarbon group of 1 to 8 carbon atoms which may optionally be substituted by a hydroxyl, alkoxy or ester group or a halogen atom;, -W+ means , where Z means a nitrogen atom or phosphorus atom and Y means a sulfur atom; R2, R3 and R4 are the same or different and respectively mean an organic group of 1 to 14 carbon atoms, and R2 and R3, or R2 R3 and R4 may, jointly form a heterocyclic group taken together with the adjacent nitrogen, phosphorus or sulfur atom.
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 September 3, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 3, 2013.
- 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.