Novel polycarbon stabilizers
AssigneeExxon Research & Engineering Co.
InventorsJoseph C. Floyd, Don A. Plank
Life of this patent
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Abstract
Novel bisphenol condensation derivatives including polyphosphorous, polyborate, polycarbonate and polysilicate products which are capped with various capping agents such as phenoxy or alkoxy compounds are effective stabilizers for a wide spectrum of hydrocarbon polymeric materials against their thermal oxidative and photochemical degradations.
Claims26
A composition of matter having the following structural formula:
- ##STR36## wherein:
- (1) R is selected from the group consisting of --H, C.sub.1 -C.sub.18 alkyl groups, and an aryl group;
- (2) X is selected from the group consisting of ##STR37## wherein A is a C.sub.1 -C.sub.16 alkylene or an arylene group;
- (3) Y is --C--;
- (4) z is selected from the group consisting of ##STR38## wherein R.sup.2 is --H or a C.sub.1 -C.sub.18 alkyl group, and O--R.sup.3 wherein R.sup.3 is a C.sub.1 -C.sub.18 alkyl group;
- and
- (5) n is a value ranging from 1 to about 15.
A composition of matter having the following structural formula:
- ##STR41## wherein:
- (1) R is selected from the group consisting of --H and C.sub.1 -C.sub.18 alkyl groups;
- (2) R.sup.2 is selected from the group consisting of --H and C.sub.1 -c.sub.18 alkyl groups;
- ##STR42## (4) Y is --C-- and (5) n is a value ranging from 1 to about 15.
A composition of matter having the following structural formula:
- ##STR43## wherein n is a value ranging from 3 to 8.
A composition of matter comprising an oxidatively degradable hydrocarbon and an effective amount of a stabilizer having the following structural formula:
- ##STR44## wherein:
- (1) R is selected from the group consisting of --H, C.sub.1 -C.sub.18 alkyl groups, and an aryl group;
- (2) X is selected from the group consisting of ##STR45## wherein A is a C.sub.1 -C.sub.16 alkylene or an arylene group;
- (3) Y is --C--;
- (4) z is selected from the group consisting of ##STR46## wherein R.sup.2 is --H or a C.sub.1 -C.sub.18 alkyl group, and --O--R.sup.3 wherein R.sup.3 is a C.sub.1 -C.sub.18 alkyl group;
- and
- (5) n is a value ranging from 1 to about 15.
A composition of matter which comprises:
- (a) an oxidatively degradable hydrocarbon selected from the group consisting of polyolefins, polyvinyl chloride, elastomers, polycarbonate plastics, lubricants, fuels, naphtha, greases, waxes and petroleum resins;
- (b) an effective amount of a co-stabilizer selected from the group consisting of dialkyl sulfides having the structural formulas of ##STR48## wherein R.sup.3 is a C.sub.1 -C.sub.30 alkyl group;
- and (c) an effective amount of stabilizer having the following structural formula:
- ##STR49## wherein:
- (1) R is selected from the group consisting of --H and C.sub.1 -C.sub.18 alkyl groups;
- (2) R.sup.2 is selected from the group consisting of --H and C.sub.1 -C.sub.18 alkyl groups;
- ##STR50## (4) Y is --C-- and (5) n is a value ranging from 1 to about 15.
A composition of matter which comprises:
- (a) a polyolefin;
- (b) from about 0.05 to about 1.0 weight percent of a dialkyl sulfide having the structural formula of ##STR52## wherein R.sup.3 is a C.sub.1 -C.sub.30 alkyl group;
- and (c) from about 0.01 to about 1.0 weight percent, based on said polyolefin, of a stabilizer having the structural formula of ##STR53## wherein n is a value ranging from 3 to 8.
Dependencies are inferred from the claim text.