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Expired Canadian patentCanada

Oil and water repellent coating compositions

CA 1285678 C · Owner: Dow Corning Corporation · Inventors: Plueddemann, Edwin P.

CIPO record

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Abstract From the Canadian patent

Abstract, An oil and water repellent coating composition is disclosed. The composition comprises a blend of an aminoorganosilane, a perfluorinated organic compound and a resin selected from the group consisting of colloidal inorganicbased siloxane resin, poly(dialkylsiloxane)monoorgano substituted silsesquioxane block copolymer acrylic polymer, and copolymer, ethylene-vinyl acetate latex and styrenebutadiene latex. The silane and perfluorinated organic combined, constitute from 0.1% to 10% by weight of the total resin solids in a solution or suspension of the blend. A method of coating a smooth substrate or treating a fabric to render the respective surface oleophobic and hydrophobic 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 July 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 12, 1986
GrantedJuly 2, 1991
Term endedJuly 2, 2008
Patent numberCA 1285678 C
Classification (IPC)C09K3/18 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedMay 12, 1986Patent grantedJuly 2, 1991Term endedJuly 2, 2008

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