Patent · US Expired

Polycarbonate resin composition

US4251425A · kind A · utility

11Cited by
13References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 12, 1978
Grant dateFeb 17, 1981
Priority date
Expiry dateDec 12, 1998

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08K5/53
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A stabilized polycarbonate resin composition comprising a polycarbonate resin and a benzenephosphonate of the general formula ##STR1## wherein R.sub.1 and R.sub.2, independently from each other, are selected from the class consisting of hydrogen, alkyl groups having 1 to 22 carbon atoms and cycloalkyl groups having 5 to 10 carbon atoms, at least one of R.sub.1 and R.sub.2 being other than hydrogen. A stabilized colored polycarbonate resin composition is also provided by further incorporating a pigment and/or dye.

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