Claims
- 1. A thermoplastic composition comprising a flame retardant copolymer consisting essentially of units derived from an alkenyl aromatic compound, a bromo-substituted alkenyl aromatic compound, an .alpha., .beta.-unsaturated monofunctional carboxylic acid, a diene rubber and a polyphenylene ether resin.
- 2. A composition according to claim 1, in which the polyphenylene ether resin comprises units of the formula ##STR5##
- in which Q, Q', Q" are independently selected from the group consisting of hydrogen, halogen, hydrocarbon radicals, halohydrocarbon radicals, hydrocarbonoxy radicals and halohydrocarbonoxy radicals, and n represents the total number of monomer units and is an integer of at least about 20.
- 3. A composition according to claim 2, in which the polyphenylene ether resin is poly(2,6-dimethyl1,4-phenylene) ether resin.
- 4. A composition according to claim 1, which further comprises said copolymer, a polyphenylene ether resin, a polymeric impact modifier for the polyphenylene ether resin consisting of a styrene copolymer, and a plasticizer.
- 5. A composition according to claim 1, which further comprises a styrene-dibromostyrene-acrylic acid-polybutadiene copolymer, a poly(2,6-dimethyl1,4-phenylene) ether resin, a radial teleblock copolymer of styrene and butadiene and isopropylated triphenyl phosphate.
- 6. An article molded from the composition of claim 1.
- 7. An article molded from the composition of claim 3.
- 8. A thermoplastic composition comprising a flame retardant copolymer and polyhenylene ether resin wherein said flame retardant copolymer comprises from about 40 to about 80 weight percent of styrene, from about 15 to about 50 weight percent of dibromostyrene, from about 0.5 to about 8 percent of acrylic acid, and from about 3 to about 20 weight percent of polybutadiene.
Parent Case Info
This is a divisional of application Ser. No. 666,964 field Oct. 31, 1984, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (4)
Number |
Date |
Country |
1149984 |
Jul 1983 |
CAX |
0013052 |
Sep 1980 |
EPX |
986634 |
Mar 1965 |
GBX |
2076831 |
Dec 1981 |
GBX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
666964 |
Oct 1984 |
|