Stabilized resin composition
US5510404A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1993 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Sep 14, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/19
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A resin composition comprising a resin, a hindered piperidinyloxy compound of the formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently a C.sub.1 -C.sub.4 alkyl group and Z is a hydrogen atom or an organic group having at least one carbon atom, and a hypophosphite compound of the formula: EQU X.sub.a (H.sub.2 PO.sub.2).sub.b (II) wherein X is a metal ion, an ammonium ion or a phosphonium ion, a and b are positive numbers provided that they satisfy the equation: a.times.c=b in which c is a valency of X, wherein a weight ratio of the hypophosphite compound (II) to the hindered piperidinyloxy compound (II) is at least 0.001, which has good heat stability and weather resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.