Patent ID: 8143202

Claim:
A polyalkyl methacrylate copolymer comprising monomer units formed from: (A) about 60 to about 96, weight percent of a C12-C16 alkyl methacrylate; wherein component (A) comprises about 68 to about 74 percent C12 alkyl methacrylate, about 20 to about 26 weight percent C14 alkyl methacrylate and about 2 to about 6 weight percent C16 alkyl methacrylate based on the total weight of component (A); and (B) about 40 to about 4, weight percent of a C18-C30 alkyl methacrylate; wherein component (B) comprises about 40 to about 50 percent C18 alkyl methacrylate, about 5 to about 15 weight percent C20 alkyl methacrylate and about 40 to about 50 weight percent C22 alkyl methacrylate based on the total weight of component (B).