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Expired Canadian patentCanada

Cathodically depositable binders (ii)

CA 1108339 A · Owner: Pampouchidis, Georgios · Inventors: Honig, Helmut; Pampouchidis, Georgios

CIPO record

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Abstract From the Canadian patent

Binders for cathodically depositable aqueous coating compositions comprising the reaction product of (A) one mole polyisocyanate with (B) at least one mole dialkylalkanolamine and a monohydroxyalkyl(meth)acrylate and/or monohydroxyalkoxy(meth)acrylate and/or a monohydroxyallylether of a polyol. Optionally, there can be included a saturated and/or unsaturated fatty alcohol or fatty acid. The binders have an NCOvalue of substantially zero; a molecular weight of from about 500 to 5000 and in each 1000 molecular weight unit a basic content of from about 0.5 to 3 and a double bond content of from about 0.5 to 4. The binders in coating compositions cure at relatively low temperatures and …

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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 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 6, 1978
GrantedSeptember 1, 1981
Term endedSeptember 1, 1998
Patent numberCA 1108339 A
Classification (IPC)C08G18/62 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedFeb 6, 1978Patent grantedSep 1, 1981Term endedSep 1, 1998

Sources & verification

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