Process for the preparation of epoxide resins by the advancement method
CA 1210189 A · Owner: Ciba Specialty Chemicals Holding Inc. · Inventors: Fiaux, Andre; Nguyen, Dinh L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Case 3-14002/+, Process for the preparation of epoxide resins by the advancement method, Abstract, The advancement method ie. the preparation of, epoxide resin mixtures by reaction of compounds containing 2 to 4 phenolic hydroxyl groups with a stoichiometric excess of polyepoxide compounds in the presence of a catalyst com-, prises adding glycidol as a chain stopper. The products are used in various industrial fields, for example in surface protection.
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 August 19, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 2003.
- 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.