Flame retarded stabilized polyester composition
US5521236A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1994 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Nov 1, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0008
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Flame retarded and stabilized polyester composition contain: (a) a polyester resin derived from a cyclohexanemethanol and a carbocyclic acid; (b) a polyphosphate containing a bridging unit between the phosphate moieties therein which is derived from an arylene-containing diol; and (c) a stabilizer which is either: PA1 (i) a combination of a hindered phenol-substituted isocyanurate and an epichlorohydrin-bisphenol A reaction product; or PA1 (ii) a combination of an ester of a hindered phenol and oxidized polyethylene; when the arylene-containing diol is a monoarylene-containing diol, such as resorcinol or hydroquinone; or PA1 (iii) a hindered phenol-substituted isocyanurate; or PA1 (iv) a phenolic oxamide antioxidant; or PA1 (v) combination of a hindered phenol-substituted isocyanurate and an epichlorohydrin-bisphenol A reaction product; or PA1 (vi) combination of an ester of a hindered phenol and oxidized polyethylene; when the arylene-containing diol is a biarylene-containing diol with an alkylene bridging group between the two arylene groups, such as bisphenol A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.