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Title:
FLUORINATED GREASE WITH LOW TORQUE LEVEL AT LOW TEMPERATURE
Document Type and Number:
Japanese Patent JP2006348291
Kind Code:
A
Abstract:

To provide a fluorinated grease having low torque levels at -40°C or lower, especially lower than those of linear perfluoropolyether oil-based greases of prior art.

The fluorinated grease comprises (A) 1-50 wt.% of a thickening agent and (B) two perfluoropolyethers (B1) and (B2); wherein the perfluoroether (B1) consists of 0.1-100 wt.% of a compound of the structural formula: X1-O(CF2O)n(CF2CF2O)m(CF2CF2CF2O)p(CF2CF2CF2CF2O)q-X2 (wherein, X1 and X2 are each of the formula: -(CF2)zCF3), has a number-average molecular weight of 1,000-10,000 and is lower than 20 cSt in dynamic viscosity at 40°C, and the perfluoroether (B2) consists of 99.9-0 wt.% of a compound of (CFXO) type with recurring units: -CF2CF2O-, -C3F6O-, -CF(CF3)CF2O- and -CF2CF(CF3)O- distributed statistically along the skeleton and is higher than 15 cSt in dynamic viscosity at 40°C.


Inventors:
MACCONE PATRIZIA
Application Number:
JP2006161166A
Publication Date:
December 28, 2006
Filing Date:
June 09, 2006
Export Citation:
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Assignee:
SOLVAY SOLEXIS SPA
International Classes:
C08L71/00; C08K3/04; C08K3/26; C08K3/30; C08K3/34; C08K3/38; C08K5/098; C08L27/18; C08L85/02; C10M105/50; C10M107/38; C10M113/10; C10M113/12; C10M119/22; C10M125/02; C10M125/20; C10M125/22; C10M129/42; C10M131/12; C10M133/32; C10M133/40; C10M137/16; C10M169/02; C10M177/00; C10N20/00; C10N20/02; C10N20/04; C10N20/06; C10N30/06; C10N30/08; C10N40/00; C10N40/02; C10N50/10; C10N70/00
Attorney, Agent or Firm:
Shintaro Nogawa