Copolymers
AssigneeExxonMobil Chemical Patents Inc.
InventorsWei Tang, Andy H. Tsou
Life of this patent
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Abstract
A polyacrylate-polyolefin copolymer and composition for volatile solvent-free coating comprising such compounds having the following structure: wherein “PO” is a polyolefin having a number average molecular weight of at least 300 g/mole, and “Ar” is selected from the group consisting of C6 to C20 aryls, a C7 to C32 alkylaryls, a C6 to C20 aryloxys, and halogen substituted C6 to C20 aryls and C7 to C32 alkylaryls, while the other variables are as described herein. The copolymers can be produced in an alkylation reaction between the desired polyacrylate and a vinyl/vinylidene-terminated polyolefin.
Claims19
A copolymer comprising compounds having the following structure:
- wherein:
- each PO is independently a polyolefin having a number average molecular weight of at least 300 g/mole;
- n and m are each an integer independently within a range from 1 to 2000;
- x is an integer from 1 to 4;
- each R is independently selected from the group consisting of —O—Ar, —O—R″, an amine, and an alkyl amine;
- each Ar is independently selected from the group consisting of a C6 to C20 aryl, a C7 to C32 alkylaryl, a halogen substituted C6 to C20 aryl and a halogen substituted C7 to C32 alkylaryl;
- each R″ is independently selected from the group consisting of hydrogen, a C1 to C10 alkyl, and a glycidyl;
- and
- each R′ is independently selected from the group consisting of a hydrogen and a C1 to C10 alkyl.
A method of forming a copolymer comprising:
- combining two or more polymerizable monomers having the following structure:
- wherein:
- each R is independently selected from the group consisting of —O—Ar, —O—R″, an amine, and an alkyl amine, with the proviso that at least one polymerizable monomer comprises —O—Ar as R;
- each Ar is independently selected from the group consisting of a C6 to C20 aryl, a C7 to C32 alkylaryl, a halogen substituted C6 to C20 aryl and a halogen substituted C7 to C32 alkylaryl;
- each R″ is independently selected from the group consisting of hydrogen, a C1 to C10 alkyl, and a glycidyl;
- each R′ is independently selected from the group consisting of hydrogen and a C1 to C10 alkyl, thus forming a polymer backbone;
- and
- combining the polymer backbone with a vinyl-terminated polyolefin or a vinylidene-terminated polyolefin, each having a number average molecular weight of at least 300 g/mole, under alkylation conditions to form the copolymer.
Dependencies are inferred from the claim text.