Patent · US Expired

Epoxy-polyester, polycarbonate, metal phosphate and rubbery modifier

US5411999A · kind A · utility

31Cited by
32References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 22, 1994
Grant dateMay 2, 1995
Priority date
Expiry dateAug 22, 2014

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L69/00
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A composition useful in the fabrication of molded articles contains a blend of a polycarbonate, a high impact rubbery modifier such as a core-shell polymer and a catalyst quencher selected from a Group IB or IIB metal phosphate salts such as sodium dihydrogen phosphate wherein the hydroyltic stability is improved via the incorporation of an epoxy-functional polyester derived from the reaction of a polyfunctional epoxy compound and a carboxylic acid-functional polyester.

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