GREASE Russian patent published in 2011 - IPC C10M169/06 C10M105/54 C10M147/02 C10M113/16 C10M129/26 

Abstract RU 2412981 C1

FIELD: chemistry.

SUBSTANCE: invention relates to production of grease for working with rocket fuel components in a wide temperature range, high pressure and high vacuum. The grease contains perfluoropolyether which is a product of copolymerisation of tetrafluoroethylene with oxygen, organosilca gel - trimethylsilyl derivative of silicic acid gel, teflon T-4-95 and an alkylamine salt of perfluoropolyoxaalkylcarboxylic acids (Asol F), with the following ratio of components, wt %: organosilica gel 2.0-3.6; teflon T-4-95 1.3-3.0; (Asol F) 0.2-0.4; perfluoropolyether - up to 100.

EFFECT: provision for application temperature range from minus 120°C to plus 250°C and possibility of use in high vacuum conditions (up to 10-8 Torr) and high pressure (up to 500 atm).

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RU 2 412 981 C1

Authors

Platonova Raisa Grigor'Evna

Chepurova Margarita Borisovna

Sheverdjaeva Natal'Ja Valentinovna

Semenycheva Ljudmila Antonovna

Poljakov Viktor Stanislavovich

Dates

2011-02-27Published

2009-09-03Filed