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Expired Canadian patentCanada

Pressure-sensitive adhesive having broad useful temperature range

CA 1263777 C · Owner: Rueb, John T. · Inventors: Haskett, Thomas E.; Rueb, John T.; Jorgensen, Jens L.

CIPO record

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

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Abstract From the Canadian patent

This invention relates to pressure-sensitive adhesives and sheet material, including tapes and the like coated therewith. There is a need for pressure-sensitive adhesives which have balanced adhesive properties over a wide temperature range, good adhesion to plastic films which for the most part have low energy surfaces and which adhesives, can be prepared easily and economically on conventional equipment. The adhesive composition of this invention consists essentially of a first component consisting essentially of a tackified, emulsifiable adhesive and a second component consisting essentially of at least one terminally unsaturated vinyl monomer, at least one vinyl-unsaturated …

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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 December 5, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 5, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 17, 1986
GrantedDecember 5, 1989
Term endedDecember 5, 2006
Patent numberCA 1263777 C
Classification (IPC)C08F220/00 +2 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedSep 17, 1986Patent grantedDec 5, 1989Term endedDec 5, 2006

Sources & verification

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