Photopolymerizable composition
CA 1288539 C · Owner: Takahashi, Noriaki · Inventors: Takahashi, Noriaki; Watanabe, Noriko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a photopolymerizable composition containing at least (A) a high-molecular compound with a weightaverage molecular weight of not less than 10,000 having a polymerizable double bond in the side chain and (B) a, polymerizable monomer represented. by the following formula (I): (I), (wherein R1, R2 and R3 represent hydrogen atom or -?-CH=CH2, and two or more of them are not hydrogen atom at the same time).
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, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 3, 2008.
- 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.