Thermosetting resin composition
CA 1305582 C · Owner: Kameyama, Masao · Inventors: Kumagawa, Shigeyuki; Kameyama, Masao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a thermosetting resin composition comprising (a) a preliminary reaction product between a polyamino compound and an unsaturated bismaleimide compound, (b) an epoxy group-containing vinyl compound (b') a vinyl group-free aliphatic or aromatic halogenated epoxy compound, (c) an epoxy curing agent and (d) a radical polymerization initiator as indispensable components. This composition is characterized in that the vinyl group-free aliphatic or aromatic halogenated epoxy compound as the component (b') is incorporated. This unsaturated bismaleimide type thermosetting resin composition is excellent in not only heat resistance and strength but also flame retardancy and light weight …
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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 July 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 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.