Process for improving green fracture strength of ceramic articles
CA 1297068 C · Owner: Polysar Limited · Inventors: Thompson, Ronald James; Josty, Peter Lyn; Russell, James Powell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aqueous dispersions of polymeric binders are used to make a slurry of a ceramic material. The slurry is then shaped to a green part by conventional techniques such as tape casting. The slurry may be spray dried to give a free flowing powder which may be formed by dry pressing roll, compaction or other similar techniques. The tensile strength of the green part may be increased by subjecting the green part to an energy treatment such as heat or irradiation including ultraviolet (UV) X-rays and electron, beams.
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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 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.