Abstract:
Described are stable aqueous polyolefin-wax dispersions containing: A) 5 to 65 % by wt. of polyethylene or polypropylene wax with an average particle size of 1 to 50 νm and an acid number of less than 5 mg KOH/g of wax and, as dispersant; B) 0.5 to 20 % by wt. of the reaction product of 1 to 50 mol of a 1,2-alkylene oxide with 2 to 4 C-atoms, and a glyceride of unsaturated C16-C22 monocarboxylic acids with one or more primarily ethylenic unsaturated bonds and which may also contain hydroxy groups. These dispersions are suitable for use in the manufacture of floor- and stonework-care agents, shoe-care agents, car-care agents, printing inks, printing pastes, paints, packaging, lubricating grease, vaseline, drawing agents, sealing and insulating compounds for electrical components, aqueous wood glazes, hot-melt coatings, cosmetic preparations and toothpaste, in the plastics-processing industry, in paper manufacturing and in corrosion protection, in the finishing of yarns and fabrics, in treating leather and as mould-release agents in the chill-casting, die-casting and centrifugal casting of non-ferrous metals.
Abstract:
Es wird eine Schmiermittelzusammensetzung beschrieben, die geeignet ist zur Anwendung auf Werkstücken mit Oberflächentemperaturen von 800 °C bis 1300 °C.
Abstract:
In one aspect the invention is a carrier-free pulverulent metalworking lubricant containing a resin having a highly polar functional group, and in another aspect is a method of the invention of forging a workpiece in a die which includes the step of applying to at least one of the die and the workpiece a coating of an effective amount of the carrier-free pulverulent lubricant composition. The use of the composition and method of the invention significantly reduces smoke and oily waste generation in hot forging operations by eliminating the use of oils or volatile organic compounds as carriers, while providing acceptable performance, cleanability, and sprayability.
Abstract:
A method of providing improved lubrication of tools used for hot-working rare earth-transition metal alloy particles in which dry glass or glass/graphite lubricants are suitably applied to the working surfaces of the tools.
Abstract:
A lubricating composition having self oil-releasing properties comprising polypropylene having a low melt index and a synthetic lubricating oil based on one or more neopentylpolyol esters, the acid residues of which on the average, have a relatively short chain, which composition can be shaped into and behaves as a mechanical component.
Abstract:
An article comprises a substrate; a coating comprising a carbon composite; and a binding layer disposed between the substrate and the coating. The carbon composite comprises carbon and a binder containing one or more of the following: SiO2; Si; B; B2O3; a metal; or an alloy of the metal; and the metal comprises one or more of the following: aluminum; copper; titanium; nickel; tungsten; chromium; iron; manganese; zirconium; hafnium; vanadium; niobium; molybdenum; tin; bismuth; antimony; lead; cadmium; or selenium.
Abstract:
A self-lubricating composite material is disclosed. The self-lubricating composite material can include discontinuous polymer fiber segments dispersed within a woven matrix of semi-continuous thermoplastic fiber. The woven matrix can be embedded within a thermosetting resin. Also disclosed are methods of manufacturing the self-lubricating composite material.
Abstract:
The present invention relates to a method for lubricating a bladder made of expandable rubber useful during vulcanization of a green tire in a metal press. Said method is characterized in that compositions in the form of silicone oil emulsions are applied onto the inner surface of the green tires and/or onto the outer surface of the vulcanization bladders so as to facilitate the molding/demolding thereof during the manufacture of said tires.