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Expired Canadian patentCanada

Adhesive resin compositions and laminates utilizing same

CA 1330608 C · Owner: Sato, Koichiro · Inventors: Sato, Koichiro; Kubo, Mineo; Nakagawa, Mikio

CIPO record

Overview

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Abstract From the Canadian patent

In accordance with the present invention there are, provided an adhesive resin composition comprising (A) 95-50% by weight of an ethylene/.alpha.-olefin copolymer having a density of 0.850-0.900 g/cm3 and an ethylene content of 75-95 mol%, (B) 5-50% by weight of a copolymer of ethylene and a radical polymerizable polar unsaturated monomer the copolymer having a, radical polymerizable polar unsaturated monomer content of 5-40% by weight, and, (C) 1.0-30 parts by weight based on 100 parts by weight of the, sum of above-mentioned (A) and (B) of a graft-modified, polyethylene, a part or whole of the polyethylene being graftmodified with an unsaturated carboxylic acid or its derivative and a …

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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 5, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 5, 2011.
  • 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 2, 1988
GrantedJuly 5, 1994
Term endedJuly 5, 2011
Patent numberCA 1330608 C
Classification (IPC)C09J133/00 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedNov 2, 1988Patent grantedJuly 5, 1994Term endedJuly 5, 2011

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