Claims
- 1. A heat and light stabilized composition of matter, comprising an organic polymeric matrix, said polymeric matrix having incorporated therein an effective heat/light stabilizing amount of a benzophenone/1,4-dihydropyridine compound having the following formula (I): ##STR3## in which n is a number ranging from 1 to 3, and R is a methyl radical or a hydrogen atom.
- 2. The stable composition as defined by claim 1, said polymeric matrix comprising a halogenated polymer.
- 3. The stable composition as defined by claim 2, said polymeric matrix comprising a chlorinated polymer.
- 4. The stable composition as defined by claim 3, said chlorinated polymer comprising polyvinyl chloride or copolymer thereof, polyvinylidene chloride, or mixture thereof.
- 5. The stable composition as defined by claim 3, further comprising an effective amount of at least one organozinc compound to provide a heat-stabilizing effect and an effective amount of at least one organic calcium, barium, magnesium or strontium compound and/or of a hydrotalcite to provide a heat-stabilizing effect.
- 6. The stable composition as defined by claim 5, comprising from 0.005% to 5% by weight of said benzophenone/1,4-dihydropyridine compound based on the weight of said chlorinated polymer.
- 7. The stable composition as defined by claim 6, comprising from 0.01% to 2% by weight of said benzophenone/1,4-dihydropyridine compound.
- 8. The stable composition as defined by claim 5, comprising from 0.005% to 1% by weight of said at least one organozinc compound and from 0.005% to 5% by weight of said at least one organic calcium, barium, magnesium or strontium compound and/or of said hydrotalcite, both based on the weight of said chlorinated polymer.
- 9. The stable composition as defined by claim 5, further comprising from 0.005% to 5% by weight of at least one .beta.-diketone, based on the weight of said chlorinated polymer.
- 10. The stable composition as defined by claim 5, further comprising from 0.005% to 1% by weight of at least one polyol, based on the weight of said chlorinated polymer.
- 11. The stable composition as defined by claim 5, further comprising from 0.05% to 5% by weight of at least one organic phosphite, based on the weight of said chlorinated polymer.
- 12. The stable composition as defined by claim 1, said polymeric matrix comprising a polyolefin, polystyrene, polyalkadiene, polyurethane, polyamide, polyester, polycarbonate, polysulfone, polyethersulfone, polyetherketone, acrylic polymer, or copolymer or mixture thereof.
- 13. The stable composition as defined by claim 12, said polymeric matrix comprising polypropylene, high density polyethylene, low density polyethylene, linear low density polyethylene, polybutadiene, or copolymer or mixture thereof.
- 14. The stable composition as defined by claim 1, further comprising an effective amount of at least one organotin compound to provide a heat-stabilizing effect.
- 15. A shaped article comprising the stable composition as defined by claim 1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
89 07415 |
May 1989 |
FRX |
|
Parent Case Info
This application is a division of application Ser. No. 07/531,296, filed May 31, 1990, now U.S. Pat. No. 5,034,533.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5034533 |
Gay et al. |
Jul 1991 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
531296 |
May 1990 |
|