Patent · US Active

Xylylenediamine composition and method for producing polyamide resin

US9783638B2 · kind B2 · utility

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13Claims
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Key dates

Filing dateOct 29, 2014
Grant dateOct 10, 2017
Priority date
Expiry dateOct 29, 2034

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L79/02
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Provided are [1] a xylylenediamine composition containing xylylenediamine and 1,2-ditolylethane wherein the content of 1,2-ditolylethane is 0.001 to 0.02 parts by mass based on 100 parts by mass of the xylylenediamine; and [2] a method for producing a polyamide resin including the steps of introducing a diamine containing xylylenediamine, a dicarboxylic acid, and 1,2-ditolylethane into a reaction system and performing polycondensation reaction, wherein the amount of the 1,2-ditolylethane to be introduced is 0.001 to 0.02 parts by mass based on 100 parts by mass of the xylylenediamine.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.