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Expired Canadian patentCanada

Impact toughened polyester nylon blends

CA 1312686 C · Owner: Eastman Chemical Company · Inventors: Blakely, Dale M.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A molding composition, comprising: (i) 99-50 weight percent of a polymer blend comprising, (8) 5-95 weight percent nylon 6; and (b) 95-5 weight percent of a polyester copolymer comprising terephthalic acid and glycol monomer units, said glycol, comprising 1,4-cyclohexylene dimethanol, and C2-6 alkylene glycol, monomer units; and (ii) 1-50 weight percent of a, copolyesterpolyamide comprising C6-15 alkylene dicarboxylic acid, diamine and diol monomer units, wherein said diol is a C2-6 alkylene diol or cyclohexane, dimethanol and said diamine is a C4-8 alkylene diamine or a C4-10 cyclic, diamine. 1e0609F

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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 January 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 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.
FiledMarch 29, 1989
GrantedJanuary 12, 1993
Term endedJanuary 12, 2010
Patent numberCA 1312686 C
Classification (IPC)C08L67/02 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedMarch 29, 1989Patent grantedJan 12, 1993Term endedJan 12, 2010

Sources & verification

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