EP 1731593 A2 20061213 - Fluorinated greases having a low torque at low temperatures
Title (en)
Fluorinated greases having a low torque at low temperatures
Title (de)
Fluorierte Schmierfettszusammensetzungen mit niedrigem Drehmoment bei tiefen Temperaturen
Title (fr)
Graisses fluorées ayant un bas moment de torsion à basses températures
Publication
Application
Priority
IT MI20051080 A 20050610
Abstract (en)
Fluorinated greases comprising: (A) from 1% to 50% by weight of a thickener; (B) from 99% to 50% by weight of a mixture of: (B1) from 0,1 to 100% by weight of a compound of structure: €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ X 1 -O (CF 2 O) n (CF 2 CF 2 O) m (CF 2 CF 2 CF 2 O) p (CF 2 CF 2 CF 2 CF 2 O) q -X 2 €ƒ€ƒ€ƒ€ƒ€ƒ(I) wherein: X 1 , X 2 have formula -(CF 2 ) z CF 3 wherein z is an integer between 0 and 3; n is an integer between 1 and 200; m is an integer between 0 and 200; p, q are integers between 0 and 10; with the proviso that: the (p+q)/(p+q+m+n) ‰0.05; m/n ‰0.7; the number average molecular weight of (I) is between 1,000 and 10,000; the kinematic viscosity at 40°C is lower than 20 cSt; and (B2) from 99.9% to 0% by weight of a perfluoropolyether oil having a kinematic viscosity at 40°C higher than 15 cSt and comprising repeating units of the type (CFXO) wherein X is F or CF 3 ; -CF 2 CF 2 O-, -C 3 F 6 O, -CF(CF 3 )CF 2 O-, -CF 2 CF(CF 3 )O-, statistically distributed along the chain.
IPC 8 full level
C10M 107/38 (2006.01); C10M 169/02 (2006.01)
CPC (source: EP US)
C10M 107/38 (2013.01 - EP US); C10M 169/02 (2013.01 - EP US); C10M 2201/041 (2013.01 - EP US); C10M 2201/061 (2013.01 - EP US); C10M 2201/062 (2013.01 - EP US); C10M 2201/1026 (2013.01 - EP US); C10M 2201/1056 (2013.01 - EP US); C10M 2207/10 (2013.01 - EP US); C10M 2207/123 (2013.01 - EP US); C10M 2213/04 (2013.01 - EP US); C10M 2213/043 (2013.01 - EP US); C10M 2213/0626 (2013.01 - EP US); C10M 2217/00 (2013.01 - EP US); C10M 2217/04 (2013.01 - EP US); C10M 2217/06 (2013.01 - EP US); C10M 2219/08 (2013.01 - EP US); C10M 2223/08 (2013.01 - EP US); C10M 2227/06 (2013.01 - EP US); C10M 2227/066 (2013.01 - EP US); C10N 2010/12 (2013.01 - EP US); C10N 2020/04 (2013.01 - EP US); C10N 2020/06 (2013.01 - EP US); C10N 2030/04 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2030/10 (2013.01 - EP US); C10N 2030/12 (2013.01 - EP US); C10N 2040/06 (2013.01 - EP US); C10N 2040/30 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1731593 A2 20061213; EP 1731593 A3 20070829; IT MI20051080 A1 20061211; JP 2006348291 A 20061228; US 2006281641 A1 20061214
DOCDB simple family (application)
EP 06010616 A 20060523; IT MI20051080 A 20050610; JP 2006161166 A 20060609; US 44971106 A 20060609