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Expired Canadian patentCanada

Mixtures containing dicyanate or polycyanate compounds, substituted bicyclo¬2.2.1 hept-5-ene- 2,3-dicarbocimides and thermoplastics

CA 1318429 C · Owner: Perritaz, Francis · Inventors: Perritaz, Francis; Kramer, Andreas

CIPO record

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Abstract From the Canadian patent

K-16818/=, Mixtures containing dicyanate or polycyanate compounds substituted, bicyclo2.2.1hept-5-ene-2,3-dicarboximides and thermoplastics Abstract of the Disclosure, Heat curable mixtures comprising (a) 5 to 95 % by weight of at least one aromatic dicyanate or polycyanate compound or a prepolymer thereof, (b) 95 to 5 % by weight of at least one compound of formula I or II (I), (II), or of a prepolymer of a compound of formula I or II (c) 0 to 50 % by weight. based an the sum of (a) + (b) of at least one, compound of formula III (III) and, (d) 0.1 to 50 % by weight, based on the sum of (a) + (b) of at least one, thermoplastic having a glass transition temperature of at least 120°C in, …

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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 May 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 15, 1988
GrantedMay 25, 1993
Term endedMay 25, 2010
Patent numberCA 1318429 C
Classification (IPC)C08G73/12 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedDec 15, 1988Patent grantedMay 25, 1993Term endedMay 25, 2010

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