Ignition resistant carbonate polymer with improved processing stability
US4727101A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1986 |
| Grant date | Feb 23, 1988 |
| Priority date | — |
| Expiry date | Jun 26, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/43
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A carbonate polymer composition comprising a carbonate polymer such as a bisphenol-A homopolycarbonate which carbonate polymer contains an amount of a salt represented by the formula: ##STR1## wherein Ar is an aromatic group, R is a monovalent organic moiety, or Ar and R collectively are a divalent aromatic moiety M is a cation, and n is a number corresponding to the valence of M and an amount of a free aromatic sulfimide, which carbonate polymer composition resists combustion upon exposure to an ignition source, exhibits good optical properties, and exhibits molecular weight stability. Optionally, a halogenated organic compound may be added to the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.