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Expired Canadian patentCanada

Room temperature vulcanizable polydiorganosiloxane compositions

CA 1300798 C · Owner: Union Carbide Corporation · Inventors: Pohl, Eric Raymond; Pepe, Enrico James

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Novel room temperature vulcanizable polydiorganosiloxane compositions comprising an .alpha..omega.-dihydroxypolydiorganosiloxane and a poly-(alkoxysilylalkyl)amine. These compositions are neutral cure, exhibit excellent shelf life stability, possess a practically controllable cure rate and upon curing produce elastomers which have good adhesion to building materials and which possess good westherability.

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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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 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.
FiledJune 18, 1986
GrantedMay 12, 1992
Term endedMay 12, 2009
Patent numberCA 1300798 C
Classification (IPC)C08L83/06 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJune 18, 1986Patent grantedMay 12, 1992Term endedMay 12, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.