A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/alpha-olefin interpolymer. The ethylene/alpha-olefin interpolymer has at least a hard segment and at least a soft segment. The soft segment contains a higher amount of comonomers than the hard segment. The hard segment has low crystallinity. The copolymer has a number of unique characteristics disclosed herein. Such 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
EP2179013(B1)
申请公布日期
2016.04.13
申请号
EP20080781796
申请日期
2008.07.14
申请人
DOW GLOBAL TECHNOLOGIES LLC
发明人
LI PI SHAN, COLIN;KUHLMAN, ROGER;RATH, GARY;KENNY, PAMELA;HUGHES, MORGAN;CONG, RONGJUAN