Global Patent Index - EP 1731593 A3

EP 1731593 A3 20070829 - 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

EP 1731593 A3 20070829 (EN)

Application

EP 06010616 A 20060523

Priority

IT MI20051080 A 20050610

Abstract (en)

[origin: EP1731593A2] 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)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

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