Lubricant spray polymers
AssigneeNouryon Chemicals International B.V.
InventorsDamien Christian Vadillo, Michael Timothy Philbin, John Socrates Thomaides, Qiwei He, Philip Nigel Threlfall-Holmes
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Abstract
Disclosed are copolymers of alkyl methacrylate monomers wherein said alkyl methacrylate monomers comprise at least: a. Monomers (A) selected from C6-C10 alkyl methacrylate monomers, and b. Monomers (B) selected from C10-C18 alkyl methacrylate monomers, wherein the mass ratio of Monomers (B) in the copolymer to Monomers (A) in the copolymer is about 99:1 to about 60:40 by weight. In some cases, the copolymers are of lauryl methacrylate and C8alkyl methacrylate. Also disclosed are methods for the preparation of the copolymers.
Claims20
An uncrosslinked copolymer of alkyl methacrylate monomers wherein said alkyl methacrylate monomers comprise:
- a. Monomers (A) selected from C6-C10 alkyl methacrylate monomers, and
- b. Monomers (B) selected from C10-C18 alkyl methacrylate monomers, wherein the mass ratio of Monomers (B) in the copolymer to Monomers (A) in the copolymer is 99:1 to 60:40 by weight, wherein Monomers (A) and Monomers (B) are distinct from one another, wherein the copolymer contains not more than 3.0% by weight of a methyl methacrylate repeating unit, and wherein the copolymer is a substantially random copolymer and has an average root mean square radius of gyration from 100 nm to 200 nm as measured by hydrodynamic column chromatography-multi angle light scattering where tetrahydrofuran is used as a solvent,
- wherein the copolymer has a weight average molecular weight of from 5,300,000 to 169,000,000 g/mol.
An uncrosslinked copolymer of C8 alkyl methacrylate and lauryl methacrylate, wherein the mass ratio of lauryl methacrylate monomers in the copolymer to C8 alkyl methacrylate monomers in the copolymer is 99:1 to 60:40 by weight, and wherein the copolymer is a substantially random copolymer and has an average root mean square radius of gyration from 100 nm to 200 nm as measured by hydrodynamic column chromatography-multi angle light scattering where tetrahydrofuran is used as a solvent,
- wherein the copolymer has a weight average molecular weight of from 5,300,000 to 169,000,000 g/mol.
Dependencies are inferred from the claim text.