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Expired Canadian patentCanada

Conformal coating systems

CA 1238134 A · Owner: Loctite Corporation · Inventors: Nativi, Larry A.

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

Ultraviolet curable polymerizable coating composition having one or more built-in secondary curing mechanisms is disclosed. The polymerizable coating composition is a two part system comprising (1) a first component comprising at least one urethane-acrylate or methacrylate, and a mono or polyfunctional acrylate or methacrylate diluent and a polymerization initiator of the photo-initiator type, and (2) a second part comprising a polyisocyanate. At least one component of the first part contains unreacted hydroxyl groups. The composition has an equivalent weight excess of isocyanate groups in the second part to the hydroxyl groups in the first part of at least 2:1. The coating composition is …

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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 June 14, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 20, 1983
GrantedJune 14, 1988
Term endedJune 14, 2005
Patent numberCA 1238134 A
Classification (IPC)H05K3/28 +2 more

Timeline

Timeline From CIPO dates

19841987199019931996199920022005Application filedOct 20, 1983Patent grantedJune 14, 1988Term endedJune 14, 2005

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