硅油减震.doc

UnitedStatesPatent7,759,293Shirahama,,,000to350,-,.:Shirahama;Shinichi(Yokohama,JP),Aoki;Toru(Yokohama,JP),Arimoto;Naozumi(Yokohama,JP)Assignee:NipponOilCorporation(Tokyo,JP).:11/282,191Filed:November18,2005ForeignApplicationPriorityDataNov22,2004[JP]2004-337618Nov22,2004[JP]2004-:508/208;508/469CurrentInternationalClass:C10M169/04(20060101);C10M145/14(20060101)FieldofSearch:508/208,469ReferencesCited[ReferencedBy].,1981CA3207654Oct.,1982DE0992570Aug.,2000EP752741Jul.,1956GB05-255683Oct.,1993JP06-128581May.,1994JP07-224293Aug.,1995JP07-258678Oct.,1995JP2000-192067Jul.,2000JP2002-053886Feb.,2002JP2002-194376Jul.,2002JP2004-035624Feb.,2004JP9314180Jul.,1993WOPrimaryExaminer:Griffin;WalterDAssistantExaminer:Campanell;FrankCAttorney,AgentorFirm:PanitchSchwarzeBelisario&NadelLLPClaimsWeclaim:,prisesalubricatingbaseoil,atleastoneviscosityindeximproverandatleastonefluorine-modifiedsiliconeoil,whereintheatleastoneviscosityindeximproverisselectedfromthegroupconsistingofanolefin(co)polymer-basedviscosityindeximproverwithaweight-averagemolecularweightof250,000to350,000andapolymethacrylate-basedviscosityindeximproverwithaweight-averagemolecularweightof150,000to250,000,,andwhereintheatleastonefluorine-position,,,andisrepresentedbyformula(1):##STR00002##whereingroupsRareeachindependentlyahydrocarbongroupa