Lubricating grease composition

Details Lubricating grease composition Lubricating grease composition

2010-04-19

2011-11-29

Toomer, Cephia D (Department: 1771)

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Ptfe

C508S181000

Reexamination Certificate

active

08067344

ABSTRACT:
A lubricating grease composition, which comprises a base oil consisting of a mixture of 100 parts by weight of at least one of a perfluoropolyether oil (A), represented by RfO[CF(CF3)CF2O]p(CF2CF2O)qRf (where Rf is a perfluoroalkyl group having 1-5 carbon atoms, p+q=2-200, q/p=0-2, and q may be 0), and a perfluoropolyether oil (B), represented by F(CF2CF2CF2O)sC2F5(where s=2-100), and 0-100 parts by weight of at least one of a perfluoropolyether oil (C), represented by RfO(CF2CF2O)m(CF2O)nRf (where m+n=3-200 and m:n=10-90:90-10), and a perfluoropolyether oil (D), represented by RfO[CF(CF3)CF2O]a(CF2CF3O)b(CF2O)cRf (where a+b+c=3-200, b is 0 or an integer of 1 or more, and c is an integer of 1 or more), preferably further admixed with a thickening agent, can suppress corrosion of metallic materials by corrosive gases and also has a good heat resistance.

REFERENCES:
patent: 3793197 (1974-02-01), Chapman
patent: 5494742 (1996-02-01), Seki et al.
patent: 5914548 (1999-06-01), Watanabe et al.
patent: 5948737 (1999-09-01), Srinivasan et al.
patent: 6525908 (2003-02-01), Usuki
patent: 6534424 (2003-03-01), Fu et al.
patent: 6673750 (2004-01-01), Hirata et al.
patent: 2003/0040442 (2003-02-01), Yokouchi et al.
patent: 2004/0186025 (2004-09-01), Nakatani et al.
patent: 2008/0167208 (2008-07-01), Hashida et al.
patent: 59-189511 (1984-10-01), None
patent: 61-113694 (1986-05-01), None
patent: 2001-354986 (2001-12-01), None
patent: 2003-027079 (2003-01-01), None
patent: 2003-096480 (2003-04-01), None
patent: 2003176831 (2003-06-01), None
patent: 2004-124050 (2004-04-01), None
patent: 2004-162909 (2004-06-01), None
Toyota Emissions, Emissions #2-Emissions analysis.
Bearing 6204ZZ.
Fomblin PFPE Lubricants, www.solvaysolexis.com, modified Dec. 13, 2002, pp. 1-4.
Translation of JP2001354986, Akihiko Shimura et al. Dec. 25, 2001.

Affiliated with

Also associated with

Rating

Lubricating grease composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lubricating grease composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lubricating grease composition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4277640