PVC resin blend compositions stabilized with lauryltin compounds
US4954546A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1989 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Feb 28, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L27/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to compositions comprising 20-80% of a vinyl chloride homopolymer (PVC) and 80-20% of at least one copolymer selected from the group consisting of polystyrene/polyethylene/butylene, acrylate/rubber, acrylate/rubber/styrene, acrylonitrile/styrene/acrylate, ABS, NBR, NAR, SAN, EVA and modified EVA, which compositions are stabilized with at least one tin compound of formula EQU (n-C.sub.12 H.sub.25).sub.2 Sn[S(CH.sub.2).sub.n COOR].sub.2 (I) or EQU (n-C.sub.12 H.sub.25)Sn[S(CH.sub.2).sub.n COOR.sup.1 ].sub.3 (II) or with a mixture of compounds of formulae I and II, wherein n is 1 or 2 and R and R.sup.1 are each independently of the other C.sub.6 -C.sub.18 alkyl. These compositions have improved heat storage properties and are particularly suitable for fabricating sheets and hollow bodies for use in the automotive industry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.