Aminovinylphosphonic ester stabilizers for organic material
US5610210A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1995 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | Aug 9, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/53
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Aminovinylphosphonic esters I ##STR1## where R.sup.1 is cyano, a radical of the formula --CO--OR.sup.6 or a group of the formula ##STR2## R.sup.2, R.sup.3 and R.sup.6 are C.sub.1 -C.sub.20 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.18 -aralkyl, phenyl or tolyl, PA1 R.sup.4 is an unsubstituted or substituted phenyl or heterocyclic group defined below PA1 R.sup.5 is hydrogen or C.sub.1 -C.sub.12 -alkyl, PA1 R.sup.7 is hydrogen, C.sub.1 -C.sub.6 -alkyl, formyl, C.sub.2 -C.sub.6 -alkanoyl, C.sub.1 -C.sub.12 -alkoxy, C.sub.5 - or C.sub.6 -cycloalkoxy, cyanomethyl, 2-hydroxyethyl, benzyl or a radical of the formula --CR.sup.8 .dbd.CH--CO--OR.sup.6, PA1 R.sup.8 is hydrogen, C.sub.1 -C.sub.6 -alkyl or a radical of the formula --CO--OR.sup.6, and PA1 X is oxygen or NH, are used as light, oxygen and heat stabilizers for organic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.