Stabilized molding compounds based on polyvinyl chloride or vinyl chloride copolymers and stabilizer system
US4755549A · kind A · utility
6Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1987 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Jul 16, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L79/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A stabilizer system for stabilizing polyvinyl chloride molding compositions contains at least one zinc compound of the formulas EQU R.sup.1 O--Zn--OR.sup.2 (I) EQU R.sup.3 S--Zn--SR.sup.4 (II), or EQU R.sup.5 O--Zn--SR.sup.6 (III) and one or more polyoxazolines or copolyoxazoline of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, and n are described herein. The stabilized molding compositions exhibit a good initial color, transparency and long-term stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.