申请人:KURARAY CO., LTD.
公开号:US20200123295A1
公开(公告)日:2020-04-23
This invention provides A methacrylic copolymer (C) comprising 25 to 35 mass % of a methyl methacrylate unit (A), and 75 to 65 mass % of an alkyl methacrylate ester unit (B) containing an alkyl group having 10 to 36 carbon atoms, the methacrylic copolymer having (a) a weight average molecular weight of 10,000 to 500,000, (b) a molecular weight distribution (Mw/Mn) of 1.01 to 1.60, (c) a triad syndiotacticity (rr) of 65% or more, and (d) a solubility of 5.0 mass % or more at 0° C. in at least one lubricant base oil (D) selected from the group consisting of API groups III, III+, and IV.