Tertiary aminoalcohol and process for producing the same, and, polyurethane and process for producing the same
CA 2062269 A1 · Owner: Isayama, Yasutoshi · Inventors: Isayama, Yasutoshi; Sotoya, Kohshiro; Fukushima, Tetsuaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tertiary aminoalcohol having a tert-amino group(s) in the main chain and hydroxyl groups at the terminals. The use of this compound for purposes different from that of ordinary amines and amine derivatives is expected. A process for producing the tertiary aminoalcohol wherein a catalyst comprising copper, a transition metal element of the fourth period and a platinum group element of the group VIII, and further optionally containing an alkali metal or an alkaline earth metal is used. A process for producing polyurethane using the above-mentioned tertiary aminoalcohol which can solve the problems occurring in the production of a polyurethane using a tertiary amine which has a strong …
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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
- Filed March 4, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2014.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.