Benzoxazole stabilizer compounds and polymeric materials stabilized therewith
First Claim
Patent Images
1. A compound having the formula ##STR9## wherein R1 is hydrogen, alkyl, alkoxy or halogen;
- R2 is an R1 substituent, carboxyl or alkoxycarbonyl;
Y is carboxyl, alkoxycarbonyl, alkanoyl, cyano, carbamoyl, N-alkylcarbamoyl or N,N-dialkylcarbamoyl; and
A is phenyl or phenyl substituted with one or more substituents selected from hydroxy, halogen, alkyl, alkoxy, cycloalkyl, aryl, aryloxy or Y.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed are compounds having the formula ##STR1## wherein X is the residue of a benzoxazole radical;
Y is carboxyl, alkoxycarbonyl, alkanoyl, cyano, carbamoyl, N-alkylcarbamoyl or N,N-dialkylcarbamoyl; and
A is phenyl, naphthyl or phenyl or napthyl substituted with one or more substituents selected from hydroxy, halogen, alkyl, alkoxy, cycloalkyl, aryl, aryloxy or Y. Also disclosed are polymeric materials stabilized against degradation by ultraviolet light by the incorporation therein of one or more of the above-defined compounds.
19 Citations
10 Claims
-
1. A compound having the formula ##STR9## wherein R1 is hydrogen, alkyl, alkoxy or halogen;
-
R2 is an R1 substituent, carboxyl or alkoxycarbonyl; Y is carboxyl, alkoxycarbonyl, alkanoyl, cyano, carbamoyl, N-alkylcarbamoyl or N,N-dialkylcarbamoyl; and A is phenyl or phenyl substituted with one or more substituents selected from hydroxy, halogen, alkyl, alkoxy, cycloalkyl, aryl, aryloxy or Y.
-
-
2. A compound having the formula ##STR10## wherein R1 is hydrogen, alkyl, alkoxy or halogen;
-
R2 is an R1 substituent, carboxyl or alkoxycarbonyl; and R3 and R4 are independently selected from hydrogen, alkyl, alkoxy, hydroxy, halogen, cycloalkyl, aryl or aryloxy.
-
-
3. A compound having the formula ##STR11## wherein R2 is hydrogen, alkyl, alkoxy, chlorine, carboxyl or alkoxycarbonyl;
-
Y is alkoxycarbonyl or cyano; and R3 is ortho or para hydroxy or alkoxy.
-
-
4. A compound having the formula ##STR12##
-
5. A compound having the formula ##STR13##
-
6. A compound having the formula ##STR14##
-
7. A compound having the formula ##STR15##
-
8. A stabilized composition comprising an organic material normally degraded by exposure to ultraviolet light containing a stabilizing amount of a compound having the formula ##STR16## wherein R1 is hydrogen, alkyl, alkoxy or halogen;
-
R2 is an R1 substituent, carboxyl or alkoxycarbonyl; Y is carboxyl, alkoxycarbonyl, alkanoyl, cyano, carbamoyl, N-alkylcarbamoyl or N,N-dialkylcarbamoyl; and A is phenyl or phenyl substituted with one or more substituents selected from hydroxy, halogen, alkyl, alkoxy, cycloalkyl, aryl, aryloxy or Y. - View Dependent Claims (9)
-
-
10. A stabilized polymeric composition comprising a polyester containing recurring phthalate moieties and a stabilizing amount of a compound having the formula ##STR17## wherein R2 is hydrogen, alkyl, alkoxy, chlorine, carboxyl or alkoxycarbonyl;
-
Y is alkoxycarbonyl or cyano; and R3 is ortho or para hydroxy or alkoxy.
-
Specification