Patent · US Expired

Nitrogenous polymer compositions

US4138447A · kind A · utility

0Cited by
11References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 5, 1977
Grant dateFeb 6, 1979
Priority date—
Expiry dateDec 5, 1997

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08K3/22
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Polymer compositions comprising a nitrogenous polymer, especially an acrylonitrile-containing polymer, and a halogen-containing flame retardant evolve reduced amounts of hydrogen cyanide on combustion when containing an alkaline earth metal oxide and sulfur.

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