Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic -co- compound
Patent
1998-08-20
2000-03-07
McAvoy, Ellen M.
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic -co- compound
508469, 508472, 508473, 508507, 508591, 72 42, C10M15700, C10M17302
Patent
active
06034041&
ABSTRACT:
Disclosed is a solid or aqueous lubricant concentrate used for the cold forming of metals, which, with reference to the solids content, including a) 20 to 50 parts by weight polyethylene with a softening point above 120.degree. C. and a particle size int he range between 0.1 and 50 .mu.m; b) 20 to 8 parts by weight polyacrylate with a molecular weight of 4,500 to 10,000 and c) 2 to 8 parts by weight styrene/acrylic acid copolymer with a molecular weight of 150,000 to 250,000 and a glass transition temperature of 45 to 55.degree. C., where, under the conditions of use, the acrylic acid component of the polymers in accordance with items b) and c) is predominantly present as salt of one or more inorganic cations, and the softening points of the individuals polymers are distributed over the temperature range defined by the limiting values of ambient temperature and 200.degree. C. The lubricant concentrate may contain homo-or copolymers or acrylic acid or the esters thereof with graded molecular weights as well as surfacant. Also disclosed is a method for facilitating the cold forming, where, by means of the lubricant concentrate, a lubricant film is applied on the workpiece from a dispersion having solids content of 5 to 25 wt-%.
REFERENCES:
patent: 3287264 (1966-11-01), Topper
patent: 3478554 (1969-11-01), Demsey
patent: 3725274 (1973-04-01), Orozco
patent: 3992303 (1976-11-01), Barker et al.
patent: 3995465 (1976-12-01), Felton, Jr.
patent: 4043925 (1977-08-01), Felton, Jr.
patent: 4052323 (1977-10-01), Feneberger et al.
patent: 4111820 (1978-09-01), Conti
patent: 4256591 (1981-03-01), Yamamoto et al.
patent: 4465883 (1984-08-01), Lopata et al.
patent: 4466909 (1984-08-01), Stayner
patent: 4474669 (1984-10-01), Lewis et al.
patent: 4654155 (1987-03-01), Kipp et al.
patent: 4752405 (1988-06-01), Kyle
patent: 4950415 (1990-08-01), Malito
patent: 5141659 (1992-08-01), Kashiwaya et al.
patent: 5368757 (1994-11-01), King
patent: 5624888 (1997-04-01), Przybylski et al.
Hesse Gunter
Nittel Klaus-Dieter
Schwinke-Kruse Norbert
McAvoy Ellen M.
Metallgesellschaft Aktiengesellschaft
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