Method of producing porous material having open pores
CA 1318089 C · Owner: Toto Ltd. · Inventors: Kishima, Noboru; Matsumoto, Akio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing a porous material having open pores comprises the steps of preparing an emulsion slurry by vigorously agitating a mixture comprising a main ingredient a, polyamide hardener, a filler and water casting said emulsion, slurry in a water-impermeable mold hardening said slurry while, it contains the water. The main ingredient is a bisphenoltype epoxy resin added with one or more reactive diluents each having one or more epoxy rings per molecule and added in an amount of 18 to 50 wt%, based on 100 wt% of said bisphenol-type epoxy resin. A large size molded product having a high wet bending strength and a complicated contour can be produced.
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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 May 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 2010.
- 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.