Heat-stabilized/non-yellowing chloropolymers
US5070128A · kind A · utility
8Cited by
3References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1990 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Apr 4, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/138
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Heat-stabilized, non-yellowing chlorinated polymers having extended working ranges, notably PVC polymers and copolymers, contain effective stabilizing amounts of (a) at least one organozinc compound, (b) at least one organic calcium, barium, magnesium or strontium compound, and (c) at least one sodium .beta.-diketonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.