公开(公告)号：SG11202009251WA

公开(公告)日：2020-10-29

申请号：SG11202009251W

申请日：2019-03-21

Applicant: LUBRIZOL CORP

Inventor： PERERA SUJITH ,  HUGHES KEVIN J ,  SCHIFERL ELIZABETH A ,  NICKERSON DAVID M ,  SMITH ALONZO

IPC: C10M147/04 ,  C10M169/04

Abstract: There is disclosed an antifoam component for a mechanical device which includes a poly(acrylate) copolymer. The antifoam component has improved foam performance in finished fluids utilizing dibutyl hydrogen phosphite compounds, such as driveline fluids. A lubricating composition comprising a) at least one oil of lubricating viscosity; and b) an antifoam component comprising a poly(acrylate) copolymer. The poly(acrylate) copolymer, b) may include (i) from about 30 wt % up to about 99 wt % of a (meth)acrylate monomer having C1 to C4 alkyl esters of (meth)acrylic acid; and (ii) from about 1 wt % up to about 70 wt % of a fluorinated (meth)acrylate monomer.

公开(公告)号：CA3094651A1

公开(公告)日：2019-09-26

申请号：CA3094651

申请日：2019-03-21

Applicant: LUBRIZOL CORP

Inventor： PERERA SUJITH ,  HUGHES KEVIN J ,  SCHIFERL ELIZABETH A ,  NICKERSON DAVID M ,  SMITH ALONZO

IPC: C10M147/04 ,  C10M169/04

Abstract: There is disclosed an antifoam component for a mechanical device which includes a poly(acrylate) copolymer. The antifoam component has improved foam performance in finished fluids utilizing dibutyl hydrogen phosphite compounds, such as driveline fluids. A lubricating composition comprising a) at least one oil of lubricating viscosity; and b) an antifoam component comprising a poly(acrylate) copolymer. The poly(acrylate) copolymer, b) may include (i) from about 30 wt% up to about 99 wt% of a (meth)acrylate monomer having C1 to C4 alkyl esters of (meth)acrylic acid; and (ii) from about 1 wt% up to about 70 wt% of a fluorinated (meth)acrylate monomer.