Patent · US Expired

Polyetherimide resin/polyester resin blends

US5939497A · kind A · utility

3Cited by
12References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 5, 1997
Grant dateAug 17, 1999
Priority date
Expiry dateSep 5, 2017

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L79/08
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Visually clear thermoplastic resin compositions include a polyetherimide resin, a first polyester resin and a second polyester resin, wherein from 50 to 100 mole percent of the structural units of the first polyester resin include an alicyclic hydrocarbon radical as the diol residue of the structural unit, and wherein less than 50 mole percent of the structural units of the second polyester include an alicyclic hydrocarbon radical as the diol residue of the structural unit, exhibit resistance to elevated temperature and improved impact properties.

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