Claims
- 1. A composition comprising an aromatic mixture of a polycarbonate subject to degradation by UV light and a light stabilizing amount of a UV absorbent compound of the formula ##STR9## wherein R is hydrogen, alkyl having 1 to 12 carbon atoms or cyclohexyl.
- 2. The composition of claim 1 in admixture with a light stabilizing amount of another UV absorbent.
- 3. The composition of claim 1 wherein said light stabilizing amount of said compound of said formula is from 0.01 to 5% by weight, based on said polycarbonate.
- 4. The composition of claim 3 wherein said amount is from 0.1 to 2% by weight, based on said polycarbonate.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2310135 |
Mar 1973 |
DEX |
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CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of application Ser. No. 934,311 filed Sept. 19, 1977 and now abandoned which in turn is a continuation of application Ser. No. 445,170 filed Feb. 25, 1974 and now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3278448 |
Laurer et al. |
Oct 1966 |
|
3337357 |
Strobel et al. |
Aug 1967 |
|
3644466 |
Strobel et al. |
Feb 1972 |
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Continuations (2)
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Number |
Date |
Country |
Parent |
934311 |
Sep 1977 |
|
Parent |
455170 |
Feb 1974 |
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