Lubricant spray polymers

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 C8alkyI methacrylate. Also disclosed are methods for the preparation of the copolymers.

1 . 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, preferably not more than 1.0% by weight, more preferably not more than 0.5% by weight of methyl methacrylate, and wherein the copolymer 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.   
     
     
         2 . An uncrosslinked copolymer obtained by combining at least:
 a. Monomers (A) selected from C6-C10 alkyl methacrylate monomers, and   b. Monomers (B) selected from C10-C18 alkyl methacrylate monomers,   in a mixture and co-polymerizing the monomers, wherein the monomers are present in a mass ratio of 99:1 to 60:40 Monomers (B) to Monomers (A), wherein Monomers (A) and Monomers (B) are distinct from one another, wherein the copolymer contains not more than 3.0% by weight, preferably not more than 1.0% by weight, more preferably not more than 0.5% by weight of methyl methacrylate, and wherein the copolymer 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.   
     
     
         3 . The copolymer of  claim 1  wherein the mass ratio of the monomers is about 80:20 Monomers (B) to Monomers (A). 
     
     
         4 . The copolymer of  claim 1  wherein the mass ratio of the monomers is about 90:10 Monomers (B) to Monomers (A). 
     
     
         5 . The copolymer of  claim 1  wherein Monomers (B) are lauryl methacrylate. 
     
     
         6 . The copolymer of  claim 1  wherein Monomers (A) are C 8 alkyl methacrylate. 
     
     
         7 . The copolymer of  claim 6  wherein the C 8 alkyl methacrylate is 2-ethyl hexyl methacrylate. 
     
     
         8 . The copolymer of  claim 1  wherein the copolymer is a substantially random copolymer. 
     
     
         9 . The copolymer of  claim 1  wherein the copolymer is a partially random copolymer and partially a block copolymer. 
     
     
         10 . The copolymer of  claim 1  wherein monomers (A) and monomers (B) represent at least 75% by weight of the total weight of monomers used to prepare the copolymer, preferably at least 90%, more preferably at least 95%, or more preferably 99% by weight. 
     
     
         11 . The copolymer of  claim 1  wherein the copolymer is a mixture of C12 alkyl methacrylate, C14 alkyl methacrylate, C16 alkyl methacrylate, and C18 alkyl methacrylate, and a C8 alkyl methacrylate. 
     
     
         12 . An uncrosslinked copolymer of C 8  alkyl methacrylate and lauryl methacrylate, wherein the mass ratio of lauryl methacrylate monomers in the copolymer to C 8  alkyl methacrylate monomers in the copolymer is 99:1 to 60:40 by weight, and wherein the copolymer 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. 
     
     
         13 . (canceled)