Phenol phosphorus compounds as polyolefin stabilizers
Abstract
Abstract Phenols of the formula I ##STR1## wherein n has a value from 1 to 15, each of R 1 , R 2 , R 3 and R 4 independently is a hydrogen atom, a C 1 - 18 -alkyl group, an aryl group, a C 5 -C 12 -cycloalkyl group or a C 7 -C 13 -aralkyl group, R 5 is a hydrogen atom or a C 1 -C 18 -alkyl group, Y is a carbonyl, thiocarbonyl, sulphinyl, sulphonyl, -P(OR 7 )-, -P(═O) (OR 7 )-, -P(═O) (R 7 )- or -P(R 7 )- group, and R 6 is a radical --CHR 8 --CHR 9 --S--CR 10 R 11 R 12 , wherein each of R 8 and R 9 independently is a hydrogen atom or a C 1 -C 6 -alkyl group, R 10 is a hydrogen atom, a C 1 -C 19 -alkyl group, a C 2 -C 4 -alkenyl group or an aryl group, R 11 is a hydrogen atom or a methyl group and R 12 is a hydrogen atom or a methyl group, or, if R 11 is a hydrogen atom, is a C 2 -C 6 -alkyl group, or, if R 10 is a hydrogen atom, R 11 and R 12 together with the carbon atom to which they are attached represent a cycloalkyl group, or R 10 , R 11 and R 12 together with the carbon atom to which they are attached represent an aryl group, or if Y is a thiocarbonyl, sulphinyl or sulphonyl group, R 6 can also be a hydrogen atom or a C 1 -C 18 -alkyl group or an aryl group, and R 7 is a hydrogen atom, a C 1 -C 18 -alkyl group or an aryl group, as stabilizers for organic material.
Inventors
- 👤 Samuel Evans
Bibliographic Details
Claims Analysis
Total Claims: 7References Cited (Backward Citations)
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