VISCOSITY INDEX IMPROVER FOR LUBRICANT COMPOSITIONS
摘要
A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/ a-olefin interpolymer. The ethylene/a-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block copolymer has a number of unique characteristics disclosed here. Such block copolymers offer the possibility of improved low temperature performance and flexibility in formulating motor oil, gear lubricants and greases, etc.
申请公布号
WO2009012153(A1)
申请公布日期
2009.01.22
申请号
WO2008US69802
申请日期
2008.07.11
申请人
DOW GLOBAL TECHNOLOGIES INC.;LI PI SHAN, COLIN;KUHLMAN, ROGER;RATH, GARY;KENNY, PAMELA;HUGHES, MORGAN;CONG, RONGJUAN
发明人
LI PI SHAN, COLIN;KUHLMAN, ROGER;RATH, GARY;KENNY, PAMELA;HUGHES, MORGAN;CONG, RONGJUAN