Claims
- 1. A thermoplastic resin composition comprising:
- (a) a mixed polycarbonate comprising units derived from a first dihydric phenol, which is a bis(hydroxyaryl)sulfone, and a second dihydric phenol said first and second dihydric phenols in a mole ratio of about 1:5 to 5:1; and
- (b) one or more thermoplastic addition polymers containing hetero groups, selected from alkyl acrylate resins, vinyl chloride polymers, or combinations thereof, said composition having been admixed to produce a compatible composition.
- 2. A composition as defined in claim 1, wherein the thermoplastic addition polymer resin is an alkyl acrylate polymer resin.
- 3. A composition as defined in claim 2, wherein the alkyl acrylate is poly(methyl methacrylate).
- 4. A composition as defined in claim 2, wherein the alkyl acrylate is a copolymer of methylmethacrylate and a vinyl monomer wherein the amount of methyl methacrylate is greater than about 70 percent by weight of the copolymer.
- 5. A composition as defined in claim 1, wherein the thermoplastic addition polymer resin is a poly(vinyl chloride).
- 6. A composition as defined in claim 5, wherein the poly(vinyl chloride)polymer is a copolymer of vinyl chloride with an olefinically unsaturated polymerizable compound which contains at least about 80 percent by weight of vinyl chloride incorporated therein.
- 7. The composition of claim 1, wherein the polycarbonate comprises from about 1 to about 99 percent by weight of total resin weight.
- 8. The composition of claim 7, wherein the polycarbonate comprises from about 10 to about 90 percent by weight of total resin weight.
- 9. The composition of claim 7, wherein the polycarbonate comprises from about 20 to about 80 percent by weight of total resin weight.
- 10. The composition of claim 7, wherein the thermoplastic addition polymer comprises from about 80 to about 20 percent by weight of the total resin weight.
- 11. The composition of claim 7, wherein the addition polymer comprises from about 90 to about 10 percent by weight of total resin weight.
- 12. The composition of claim 9, wherein the thermoplastic addition polymer comprises from about 80 to about 20 percent by weight of the total resin weight.
- 13. The composition of claim 1, wherein the polycarbonate comprises units derived from bis(3,5-dimethyl-4-hydroxyphenyl)sulfone.
- 14. The composition of claim 13, wherein the polycarbonate also comprises units derived from 2,2'-bis(4-hydroxyphenyl)propane.
- 15. The composition of claim 14, wherein the bis(3,5-dimethyl-4-hydroxyphenyl)sulfone and the 2,2'-bis(4-hydroxyphenyl)propane units are in a mole ratio of from about 1:99 to about 99:1.
- 16. The composition of claim 1, wherein the polycarbonate comprises units of 2,2'-bis(4-hydroxyphenyl)propane.
- 17. A composition as defined in claim 1, wherein the thermoplastic addition polymer resin is a mixture of an alkyl acrylate polymer resin and a poly(vinyl chloride).
- 18. A composition as defined in claim 17, wherein the thermoplastic addition polymer is a mixture of polymethylmethacrylate and poly(ethylene terephthalate).
- 19. A composition as defined in claim 17, wherein said vinyl chloride polymer is a mixture of poly(ethylene terephthalate) and polyvinylchloride.
- 20. A composition as defined in claim 18, wherein the polycarbonate:polymethylmethacrylate:poly(ethylene terephthalate) ratio by weight is approximately 40:40:20 percent.
REFERENCE TO EARLIER FILED APPLICATION
This application is a divisional of application Ser. No. 451,181, filed Dec. 20, 1982, now U.S. Pat. No. 4,511,693, which in turn is a continuation-in-part of application Ser. No. 259,524, filed May 1, 1981, now abandoned.
US Referenced Citations (7)
Divisions (1)
|
Number |
Date |
Country |
Parent |
451181 |
Dec 1982 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
259524 |
May 1981 |
|