The present invention provides a process, which includes: coating at least a portion of a surface of at least one silica particle with at least one wax, wherein the coating is carried out in at least one gas at a temperature above the melting point of the wax and below the decomposition temperature of the wax, to obtain at least one wax-coated silica particle. Other embodiments of the present invention provides processes for impregnating the silica particle with wax and uses of the wax-coated or...

A knife for heating the wax on the surface of a wax runner. The knife as a surface which is recessed in the center of the surface to permit melted wax to flow up into the recessed area and not flow away from the knife. Alternately, conformal heating surface which melts only that portion of the wax runner to which the pattern gate is affixed. Additionally an electrical circuit is provided which includes a heater and a temperature controller to limit the temperature at which wax is melted.

An applicator including a wax container reservoir, acting at the same time as a handle, at the mouth of which there is a head attached which, acting as the applicator means proper, centers its features around the fact that, after a sector for attachment to the container reservoir neck, said applicator incorporates a gradually but noticeably narrowing area in order to achieve a parallel restriction of the flow of wax to the outlet end, where an inner rib is established that in turn produces a sec...

A method for inhibiting the deposition of wax in an oil well producing a wax-containing petroleum from a subterranean formation comprises injecting into the oil pool at the base of said well a copolymer comprised of ethylene and vinyl acetate and having an average molecular weight between about 15,000 and about 35,000.

Wax pen extrudes wax at a controlled temperature from a nozzle for building a wax pattern such as is employed in the lost wax casting process. The wax pen carries its wax in a cylinder from which the wax is forced through a delivery barrel and out of the nozzle. Wax temperature is sensed in the delivery barrel to control the heating of the wax in the barrel and in the cylinder. The wax may be expelled by a spring-driven or a motor-driven piston.

Embodiments include a toner with a distilled wax having a crystallinity of from about 55 to about 100 percent, wherein the degree of crystallinity is calculated using the following formulas: [Heat of enthalpy (Hm) J/g/294 J/g].times.100=degree of crystallinity (Xc); [Heat of recrystallization (Hrc) J/g/294 J/g].times.100=degree of crystallinity (Xc); and Sc/(Sc+Sa)].times.100%, wherein Sc is a diffraction peak area of a crystalline component of the wax and the Sa is a diffraction peak area of an...

Wax-based lubricant coatings for conveyors, and in particular for container transporting conveyors, are provided. The lubricant coatings provide conveyor surfaces having low coefficients of friction. In one embodiment, the lubricant coatings are composed of a mixture of carnauba wax and at least one additional wax. Conveyors having the lubricant coatings applied thereto are also provided.

Wax esters are prepared by reacting a solution of palm oil in an organic solvent with oleyl alcohol in the presence of an immobilized lipase wherein molar ratio of palm oil to oleyl alcohol is between 1:2 and 1:4. Immobilized lipase used is present in an amount which is equivalent to not less than 1000 .mu.g of protein per milli-mole of palm oil used and the reaction is carried out at 40.degree. C. to 50.degree. C. for a period of not less than 5 hours. The organic solvent used has a value of lo...

Wax in water emulsions prepared from Fischer-Tropsch derived waxes, Fischer-Tropsch process water, and two alkyl ethoxylated phenol nonionic surfactants having different hydrophilic-lipophilic balances provide high performance pipeline transport of waxes with reduced pipeline fouling.

This invention relates to a kind of white wax and its manufacturing method, particularly the white wax extracted from animal fat and sebum as a nontoxic, non-hazardous product of superb moistening that enhances skin's elasticity while keeping skin from cracking. The white wax in reference is made of animal fat and sebum, duly crushed after pre-treatment of high-temperature sterilization and deodorization and removal of impurities, allowing the fat and sebum to mix. The mixed raw material is heat...