Patent · US Expired

Halogen-free flame-retardant composition

US6767941B2 · kind B2 · utility

7Cited by
20References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 27, 2001
Grant dateJul 27, 2004
Priority date
Expiry dateFeb 28, 2022

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08K5/0066
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A halogen-free, flame-retardant composition includes (1) organic phosphorus compound (A) and (1′) melamine or a compound derived from melamine (B); or (2) a melamine-phosphorus compound (AB). The composition also includes and olefin polymer and from 0.1-30 wt % based on the olefin polymer, of a compound containing acid, acid anhydride or epoxy groups. The flame-retardant composition may included in a polycondensate composition which incorporate the flame-retardant composition is substantially shortened.

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