EP 0667390 A3 19950927 -
Publication
Application
Priority
DE 4404620 A 19940214
Abstract (en)
[origin: EP0667390A2] Lubricating oil additive contains, as active constituents, (co)polymers, or (co)oligomers of monomers with long-chain alkyl gps. obtd. by free-radical polymerisation. The free radical initiators (I) used must: (a) decompose to form prim. prods. that are easily sepd. and/or: (b) form no strongly polar decompsn. prods. and are used in amts. of 0.01-5 wt.% under controlled polymerisation conditions, so that the Mw of the prod. is in the 500-30000 range.
IPC 1-7
IPC 8 full level
C08F 4/04 (2006.01); C08F 4/32 (2006.01); C08F 4/34 (2006.01); C10M 145/14 (2006.01); C10M 145/16 (2006.01)
CPC (source: EP)
C10M 145/14 (2013.01); C10M 145/16 (2013.01); C10M 2209/084 (2013.01); C10M 2209/086 (2013.01)
Citation (search report)
- [DX] DE 4025494 A1 19920213 - ROEHM GMBH [DE]
- [X] US 5112509 A 19920512 - BRINK JR EDWARD C [US], et al
- [X] US 2623036 A 19521223 - NEHER HARRY T, et al
- [X] US 2600449 A 19520617 - HORNE WILLIAM L VAN, et al
- [A] GB 1053529 A
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0667390 A2 19950816; EP 0667390 A3 19950927; EP 0667390 B1 20000517; AT E193050 T1 20000615; DE 4404620 A1 19950817; DE 59508335 D1 20000621
DOCDB simple family (application)
EP 95101609 A 19950207; AT 95101609 T 19950207; DE 4404620 A 19940214; DE 59508335 T 19950207