Heat/color stabilized polymers of vinyl chloride
US4963594A · kind A · utility
10Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1989 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | Jul 21, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/37
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Vinyl chloride based polymers are heat/color stabilized by formulating therewith a stabilizing amount of (i) at least one organozinc derivative, (ii) at least one organic derivative of a metal from Group IIa of the Periodic Table, and (iii) at least one thiomalic acid diester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.