Epoxy compounds and epoxy resin compositions containing the same
CA 1331904 C · Owner: Mitsui Chemicals, Incorporated · Inventors: Takata, Toshimasa; Nakamura, Hideo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a novel epoxy compound of the chemical structure:, (A), (wherein n is the number of recurring units and has a value in the range of from 0 to 30, R1 and R2 are independently selected from the group consisting of hydrogen and alkyl radicals having 1 to 6 carbon atoms, R3 is an alkyl radical having 1 to 6 carbon atoms and, R4 is a tertiary alkyl radical). Also disclosed is an epoxy resin composition comprising the epoxy compound a curing, agent and a curing accelerator. The composition cures into a product having a low dielectric constant and may be used for example as an electrical insulating material an adhesive or a, coating composition.
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 6, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 6, 2011.
- 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.