Silane terminated liquid polymers
CA 1330610 C · Owner: Courtaulds Aerospace, Inc. · Inventors: Singh, Hakam
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure: A liquid polymer which is rapidly curable at room, temperature, to a solid hydrolytically stable elastomer having high tensile and tear strengths said liquid, polymer having the formula: wherein R is a liquid polymeric backbone selected from the group consisting of polyether and polythioether said backbone having a number average molecular weight of at least 1,500 and having no carboxyl or hydroxyl groups; R1 is lower alkyl, R2 is lower alkyl R3 is a, divalent organic radical having no sulfur atoms R4 is, alkylene of from 3 to 6 carbon atoms and which, separates the oxygen atom from X by at least 3 carbon atoms, X is sulfur or -S-R5-S- wherein R5 is alkylene …
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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 July 5, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 5, 2011.
- 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.