EP 0413795 B1 19930421 - SYNTHETIC LUBE COMPOSITION AND PROCESS
Title (en)
SYNTHETIC LUBE COMPOSITION AND PROCESS
Publication
Application
Priority
US 31357689 A 19890221
Abstract (en)
[origin: WO9010050A1] The thermal stability of synthetic lubricants composed of alpha-olefin oligomers is improved by reaction with an olefin such as decene or the lower molecular weight, non-lubricant range olefins produced in the course of the oligomerization of 1-alkenes. The alkylation of the lube range oligomer is carried out using acidic alkylation catalyst such as solid, open-pore catalyst, e.g., fluorided alumina. The improved lubricant compositions of the present invention comprise a high viscosity index liquid lubricant oligomer composition containing C30-C1300 hydrocarbons with at least one higher alkyl branch per oligomer molecule, the alkyl branch containing between 12 and 40 carbon atoms. In a preferred embodiment the novel alkylated lubricant composition has a methyl to methylene branch ratio of less than 0.19 and pour point below -15 DEG C.
IPC 1-7
IPC 8 full level
B01J 23/26 (2006.01); B01J 27/053 (2006.01); B01J 27/08 (2006.01); B01J 27/16 (2006.01); C10G 50/02 (2006.01); C10G 69/12 (2006.01); C10M 105/04 (2006.01); C10M 107/10 (2006.01); C10N 20/00 (2006.01); C10N 20/02 (2006.01); C10N 70/00 (2006.01)
CPC (source: EP)
C10G 50/02 (2013.01); C10M 107/10 (2013.01); C10M 2205/028 (2013.01); C10N 2020/01 (2020.05)
Designated contracting state (EPC)
AT BE DE FR GB IT NL SE
DOCDB simple family (publication)
WO 9010050 A1 19900907; AU 5171490 A 19900926; AU 629618 B2 19921008; CA 2027547 A1 19900822; CA 2027547 C 19990831; EP 0413795 A1 19910227; EP 0413795 B1 19930421; JP 2945134 B2 19990906; JP H03504141 A 19910912
DOCDB simple family (application)
US 9000863 W 19900215; AU 5171490 A 19900215; CA 2027547 A 19900215; EP 90904065 A 19900215; JP 50405290 A 19900215