Cold-curing binder and process for producing molding with the same
CA 2504662 A1 · Owner: Watanabe, Isao · Inventors: Watanabe, Isao; Kitsudo, Tadashi; Hirohata, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cold-curing binder; and a process for producing a phenolic resin molding with the binder. Also provided are: a porous ceramic molding obtained by curing the binder and a ceramic without heating the mixture and then burning the cured mixture obtained; and a process for producing the porous ceramic molding. The cold-curing binder comprises as major ingredients a tri- or tetrafunctional phenol compound having one or two electron-donating groups on the phenolic benzene ring, a crosslinking agent and a catalyst.
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
- Filed October 1, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 1, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 1, 2025.
- 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.