Patent · US Expired

Impact resistant polyamide compositions

US5321079A · kind A · utility

3Cited by
3References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 5, 1992
Grant dateJun 14, 1994
Priority date—
Expiry dateAug 5, 2012

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L51/06
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A thermoplastic polyamide comprising a copolyamide and a modified copolyolefin. The copolyamide is the reaction product of a hexamethylene diamine, which may be substituted with one or more alkyl groups, and a his (4-aminocyclohexyl) alkane which is substituted adjacent to the amino groups, and a dicarboxylic acid. Molded bodies made therefrom have high rigidity, excellent impact resistance over a broad temperature range, low water uptake, high dimensional stability, low permeability to oxygen, and high shape retention on heating. They are particularly suitable for injection molding and extrusion, especially for the preparation of thin walled or large surface area shapes.

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