Claims
- 1. A composition comprising an aromatic carbonate polymer in admixture with an effective amount of a stabilizing compound effective to inhibit yellowing upon exposure to sterilizing radiation, said stabilizing compound being an alkene represented by the general formula ##STR6## wherein R.sup.7-10 are independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, aralkyl, alkaryl, alkoxy and aryloxy.
- 2. The composition of claim 1 wherein R.sup.7-10 independently selected from hydrogen, alkyl, alkenyl, cycloalkenyl and aryl.
- 3. The composition of claim 1 wherein said aromatic carbonate polymer is a poly(bisphenol-A) carbonate.
- 4. The composition of claim 1 wherein said aromatic carbonate polymer is a poly(ester-carbonate).
- 5. The composition of claim 1 which further comprises a polyester resin.
- 6. The composition of claim 1 which contains 0.01-5.0 weight parts stabilizing compound per 100 weight parts polymer.
- 7. The composition of claim 1 which contains 0.01-0.50 weight parts stabilizing compound per 100 weight parts polymer.
- 8. The composition of claim 1 which further comprises a polyestercarbonate resin.
- 9. A composition comprising an aromatic carbonate polymer in admixture with an effective amount of a stabilizing alkene (>C.dbd.C<) compound effective to inhibit yellowing upon exposure to sterilizing radiation, said alkene being 1,2-diphenylethene.
- 10. A composition comprising an aromatic carbonate polymer is admixture with an effective amount of a stabilizing alkene (>C.dbd.C<) compound effective to inhibit yellowing upon exposure to sterilizing radiation, said alkene being allylphenol.
- 11. A composition comprising an aromatic carbonate polymer in admixture with an effective amount of a stabilizing alkene (>C.dbd.C<) compound effective to inhibit yellowing upon exposure to sterilizing radiation, said stabilizing compound being selected from the group consisting of 2,4-dimethyl-1-pentene, 2-phenyl-2-pentene, 1-dodecene, 1,4-diphenyl-1,3-butadiene, 2-methyl-undecene and limonene.
- 12. The composition of claim 1 wherein R.sup.7 and R.sup.8 are independently selected from alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, aralkyl and alkaryl.
- 13. The composition of claim 1 wherein at least one or R.sup.7 and R.sup.8 is selected from the group consisting of aryl and aralkyl, and wherein at least one of R.sup.9 and R.sup.10 is selected from the group consisting of aryl and aralkyl.
- 14. The composition of claim 1 wherein R.sup.7 is selected from the group consisting of aryl and aralkyl.
- 15. The composition of claim 1 wherein at least one of R.sup.7, R.sup.8, R.sup.9 and R.sup.10 is methylaryl.
- 16. The composition of claim 12 wherein said aromatic carbonate polymer is a poly(ester-carbonate).
Parent Case Info
This is a continuation of application Ser. No. 07/136,603 filed 12/22/87, which is a division of application Ser. No. 769,277 filed 08/26/85, which is a continuation-in-part of application Ser. No. 579,103 filed 02/10/84 all now abandoned.
US Referenced Citations (38)
Foreign Referenced Citations (5)
Number |
Date |
Country |
0152012 |
Aug 1985 |
EPX |
0162012 |
Nov 1985 |
EPX |
0296473 |
Dec 1988 |
EPX |
44-2480 |
Feb 1969 |
JPX |
5084352 |
Jun 1980 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
769277 |
Aug 1985 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
136603 |
Dec 1987 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
579103 |
Feb 1989 |
|