Global Patent Index - EP 0667390 B1

EP 0667390 B1 20000517 - Improved additif for lubricating oil

Title (en)

Improved additif for lubricating oil

Title (de)

Verbesserte Additive für Schmieröle

Title (fr)

Additif amélioré pour huile lubrifiante

Publication

EP 0667390 B1 20000517 (DE)

Application

EP 95101609 A 19950207

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

C10M 145/14; C08F 4/04; C08F 4/34; C10M 145/16

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)

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 193050 T 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