EP 0418610 B1 19940119 - Viscosity index improver, with a dispersant activity.
Title (en)
Viscosity index improver, with a dispersant activity.
Title (de)
Dispergierwirksame Viskositäts-Index-Verbesserer.
Title (fr)
Produit améliorant l'indice de viscosité, à action dispersante.
Publication
Application
Priority
DE 3930142 A 19890909
Abstract (en)
[origin: EP0418610A1] The invention relates to polyalkyl (meth)acrylates suitable for improving the viscosity index for use as oil additives having an improved dispersing and detergent action in diesel engines and spark-ignition engines, the polyalkyl (meth)acrylates being copolymers of 80 - 99.5 parts by weight of alkyl (meth)acrylates of the formula <IMAGE> in which R is hydrogen or methyl and R1 is an alkyl radical having 6 to 24 carbon atoms, preferably 8 to 20 carbon atoms, together with 0.5 - 20 parts by weight of at least one functionalised alkyl methacrylate of the formula II <IMAGE> in which R' is hydrogen or methyl and R2 is an alkyl radical having 2 to 6 carbon atoms and substituted by at least one OH group or is a poly-alkoxylated radical <IMAGE> in which R3 and R4 are hydrogen or methyl, R5 is an alkyl radical having 1 to 40 carbon atoms and n is an integer from 1 to 60, the total of the monomers of the formulae (I) and (II) being 100 parts by weight, and, if appropriate, 0 - 20 parts by weight of one or more monomers of the formula III <IMAGE> in which R'' is hydrogen or methyl and R6 is an alkyl radical having 1 to 5 carbon atoms
IPC 1-7
C10M 145/14; C10M 159/00; C10M 157/00; C08F 220/18; C08F 255/00
IPC 8 full level
C08F 220/18 (2006.01); C08F 255/00 (2006.01); C08L 33/04 (2006.01); C08L 33/10 (2006.01); C10M 145/14 (2006.01); C10M 149/06 (2006.01); C10M 149/10 (2006.01); C10M 157/00 (2006.01); C10M 159/00 (2006.01); C10N 30/00 (2006.01); C10N 30/02 (2006.01); C10N 30/04 (2006.01); C10N 40/25 (2006.01); F02B 1/04 (2006.01); F02B 3/06 (2006.01); F02F 7/00 (2006.01)
CPC (source: EP US)
C10M 143/00 (2013.01 - EP US); C10M 145/14 (2013.01 - EP US); C10M 157/00 (2013.01 - EP US); C10M 2205/00 (2013.01 - EP US); C10M 2205/02 (2013.01 - EP US); C10M 2205/06 (2013.01 - EP US); C10M 2209/084 (2013.01 - EP US); C10M 2209/104 (2013.01 - EP US); C10M 2209/105 (2013.01 - EP US); C10M 2217/023 (2013.01 - EP US); C10M 2217/024 (2013.01 - EP US); C10M 2217/028 (2013.01 - EP US); C10M 2217/06 (2013.01 - EP US); C10N 2040/25 (2013.01 - EP US); C10N 2040/251 (2020.05 - EP US); C10N 2040/252 (2020.05 - EP US); C10N 2040/253 (2020.05 - EP US); C10N 2040/255 (2020.05 - EP US); C10N 2040/28 (2013.01 - EP US); F02B 1/04 (2013.01 - EP US); F02B 3/06 (2013.01 - EP US); F02F 7/006 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0418610 A1 19910327; EP 0418610 B1 19940119; AT E100489 T1 19940215; DE 3930142 A1 19910321; DE 59004308 D1 19940303; DK 0418610 T3 19940411; ES 2062234 T3 19941216; HK 155396 A 19960823; JP 2941392 B2 19990825; JP H03100099 A 19910425; US 5188770 A 19930223
DOCDB simple family (application)
EP 90116624 A 19900830; AT 90116624 T 19900830; DE 3930142 A 19890909; DE 59004308 T 19900830; DK 90116624 T 19900830; ES 90116624 T 19900830; HK 155396 A 19960815; JP 23731090 A 19900910; US 57667090 A 19900831