ATE77643T1 - LUBRICANT COMPOSITION THAT CONTAINS A VISCOSITY INDEX IMPROVER WITH DISPERSING PROPERTIES. - Google Patents

LUBRICANT COMPOSITION THAT CONTAINS A VISCOSITY INDEX IMPROVER WITH DISPERSING PROPERTIES.

Info

Publication number
ATE77643T1
ATE77643T1 AT89200374T AT89200374T ATE77643T1 AT E77643 T1 ATE77643 T1 AT E77643T1 AT 89200374 T AT89200374 T AT 89200374T AT 89200374 T AT89200374 T AT 89200374T AT E77643 T1 ATE77643 T1 AT E77643T1
Authority
AT
Austria
Prior art keywords
viscosity index
lubricant composition
index improver
dispersing properties
dispersing
Prior art date
Application number
AT89200374T
Other languages
German (de)
Inventor
Carl Lesley Willis
Arismendi Andres Martinez Jr
Original Assignee
Shell Int Research
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/157,348 external-priority patent/USH826H/en
Priority claimed from US07/157,355 external-priority patent/USH815H/en
Application filed by Shell Int Research filed Critical Shell Int Research
Priority claimed from EP89200374A external-priority patent/EP0329254B1/en
Application granted granted Critical
Publication of ATE77643T1 publication Critical patent/ATE77643T1/en

Links

AT89200374T 1988-02-17 1989-02-15 LUBRICANT COMPOSITION THAT CONTAINS A VISCOSITY INDEX IMPROVER WITH DISPERSING PROPERTIES. ATE77643T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/157,348 USH826H (en) 1988-02-17 1988-02-17 Lubricant compositions containing a viscosity index improver having dispersant properties
US07/157,355 USH815H (en) 1988-02-17 1988-02-17 Lubricant composition containing a viscosity index improver having dispersant properties
EP89200374A EP0329254B1 (en) 1988-02-17 1989-02-15 Lubricant composition containing a viscosity index improver having dispersant properties

Publications (1)

Publication Number Publication Date
ATE77643T1 true ATE77643T1 (en) 1992-07-15

Family

ID=27232542

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89200374T ATE77643T1 (en) 1988-02-17 1989-02-15 LUBRICANT COMPOSITION THAT CONTAINS A VISCOSITY INDEX IMPROVER WITH DISPERSING PROPERTIES.

Country Status (1)

Country Link
AT (1) ATE77643T1 (en)

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee