Process for preparing thermosetting resin
CA 1304863 C · Owner: Ueno, Susumu · Inventors: Yamato, Motoyuki; Fuchi, Masao; Ueno, Susumu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thermosetting resin of a norbornene monomer is prepared by bulk-polymerizing a norbornene monomer in a mold in the presence of a metathesis catalyst system and furhter in the presence of a dicyclopentadiene heatpolymerized resin in a amount of 15 to 150 parts by weight per 100 parts by weight of the monomer.
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 July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 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.