Method for removing binder from green body
CA 2011121 C · Owner: Imai, Minoru · Inventors: Adachi, Masahiro; Imai, Minoru; Yoshihiro, Yoshiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of removing a binder from a green body capable of accomplishing the binder removal at a substantially reduced temperature and in a significantly reduced period of time. The binder mainly consists of a polymer material of ultraviolet degradation properties such as, for example, a polymer material having a main chain containing a tertiary carbon atom. The green body is irradiated with ultraviolet rays at a temperature within the range of 150°C to 300°C under an atmospheric pressure to rapidly carry out the photo degradation of the polymer material by ultraviolet rays, so that the binder may be readily removed from the green body.
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 February 28, 1990 and granted August 13, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2012.
- 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.