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Expired Canadian patentCanada

Coating composition of an acrylic polymer having amino ester groups and a glycidyl acrylic polymer

CA 1259730 A · Owner: E. I. Du Pont De Nemours And Company · Inventors: Walus, Aloysious N.; Den Hartog, Herman C.

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Abstract From the Canadian patent

TITLE, Coating Composition of An acrylic Polymer Having Amino Ester Groups, And a Glycidyl Acrylic Polymer ABSTRACT, A coating composition which cures at ambient temperatures of 20-80% by weight of a binder and 80-20% by weight of a solvent for the binder, the binder contains about:, A. 60-80% by weight, based on the weight of the binder, of an acrylic polymer of polymerized monomers of methyl methacrylate and an alkyl methacrylate, an alkyl acrylate or mixtures thereof, each having 2-12 carbon atoms in the alkyl group and the polymer has pendent amino ester or hydroxy amino ester groups;, B. 20-40% by weight based on the weight of the, binder, of a glycidyl acrylic crosslinking polymer of …

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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 September 19, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 19, 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.
FiledNovember 1, 1984
GrantedSeptember 19, 1989
Term endedSeptember 19, 2006
Patent numberCA 1259730 A
Classification (IPC)C09D133/00 +1 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedNov 1, 1984Patent grantedSep 19, 1989Term endedSep 19, 2006

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