Low shrinkable unsaturated polyester resin composition
CA 1262785 C · Owner: Moriya, Yasuo · Inventors: Suzuki, Nobuyoshi; Nakayama, Masaharu; Fukushi, Kyosuke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a low shrinkable unsaturated polyester resin composition consisting of (A) 20-70% by weight of an unsaturated polyester; (B) 28-60% by weight of a monomer polymerizable with the above unsaturated polyester; (C) 2-20% by weight of a block copolymer mixture defined in the following and, in which a mixture of the monomer (B) and the block copolymer mixture (C) is in a non-aqueous dispersion state; and a mixture of the above polyester (A) the, monomer (B) and the block copolymer mixture (C) is in a non-aqueous dispersion state, said block copolymer mixture is a copolymer obtained by polymerizing either one of monomers defined below in (a) and (b) (hereinafter referred to as …
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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 November 7, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 7, 2006.
- 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.