Improved apparatus of the type comprising inside a fixed enclosure, a rotary assembly constituted by a treatment rotor with apertured discs angularly offset one with respect to the other, upstream by a rotary distributor and downstream by a fan with optional interposition of a rotary rectifier. According to the invention, the apparatus comprises between the discs and the fixed part of the enclosur...

Centrifuge comprising two drums (1,2) having coaxial horizontal axes. The inner drum carries a set of dishes (33) and, on the periphery, a scraper screw (36). A sludge chamber (23) is provided at one end of the outer drum (2) and, by way of passages (28) adapted to be closed by a discharge device, is in communication with the outside. The centrifuge is provided with a double energy recuperation de...

A sunshade having a cover which can be folded together in fan-like manner and is supported by at least three support struts, at least the outer two support struts having one end pivoted to a bearing member which is swingable around at least one horizontal axis on a stand bar and can be locked in position thereon and the outer two support struts can be pivoted via a spreading slide by one spreading...

A powder coating process for producing soft, flexible polyurethane films particularly in the form of a surgical glove, wherein low melting crystalline prepolymer particles are powder coated and cured to an essentially non-crystalline film.

PURPOSE:To reduce burden for exhaust gas disposal device and damage to the furnace and permit stable operation regardless of fluctuation of heat generated by wastes.

Reducing the heavy metals content of an aqueous composition which includes adding lime to the composition and filtering the composition.

Granulate-form agglomerates of pulverulent rubber chemicals having a maximum primary grain size of 500 mu m , an active substance content of at least 90% by weight and an assessment (a) in the intermixing test of at the most 1.5, (b) in the dust proportion test of at the most 10, (c) in the fine material proportion test of at the most 5 and (d) in the falling test of at the most 70, as well as a ...

This invention relates to liquefied normally solid forms of polyoxyalkylene copolymers particularly suitable for use in pesticide concentrates prepared by dissolving a normally solid polyoxyalkylene copolymer nonionic surface active agent and an alkylene glycol having 2 or 3 to 5 carbon atoms with or without water at a temperature of at least 70 DEG C.

This invention relates to liquefied normally solid forms of polyoxyalkylene block copolymers particularly suitable for use in pesticide concentrates comprising a normally solid polyoxyalkylene block copolymer nonionic surface-active agent and an alkylene glycol having 3 to 5 carbon atoms with or without water.

A method for synthesizing diamond wherein hydrogen gas which has passed through a micro-wave non-electrode discharge and mixed with hydrocarbon gas, or a mixture gas consisting of hydrocarbon and hydrogen after its passing through a micro-wave non-electrode discharge, is introduced onto the surface of a substrate heated to a temperature of from 300 DEG to 1300 DEG C. to decompose hydrocarbon in ...

An aqueous coating composition for filamentary materials that are to be used in reinforcing elastomeric matrix materials is provided that renders reinforced elastomeric materials having improved properties of flexibility and fatigue resistance. The aqueous adhesive coating composition has a vinyl-pyridine-containing copolymer or terpolymer latex, a phenolic aldehyde condensate polymer, and a non-s...

PCT No. PCT/JP81/00128 Sec. 371 Date Jan. 25, 1982 Sec. 102(e) Date Jan. 25, 1982 PCT Filed Jun. 4, 1981 PCT Pub. No. WO81/03461 PCT Pub. Date Dec. 10, 1981.This invention provides a method of continuously manufacturing a cross-linked polyvinyl chloride resin foam sheet which has a low density, uniformly fine cell, excellent thermal moldability and high heat resistance and is neither deformed nor ...

New rigid polyvinyl chloride foam having a density of less than 200 kg/m<3> and having a uniform, fine-celled cell-structure consisting of a rigid vinyl chloride homopolymer containing per 100 parts by weight of polyvinyl chloride 0.1-15 parts by weight of a homo- or copolymer of an alkyl methacrylate having an alkylgroup of 1-10 carbon atoms having a viscosity of the solution eta 0.1 of between ...

The subject invention is a foamable composition based on a blend of a carbon monoxide- or sulfur dioxide-containing ethylene copolymer and a vinyl or vinylidene halide polymer, and the closed-cell foamed article produced therefrom.

An improved cement composition having improved crack resistance, water resistance, and which comprises a mixture of a conventional cement composition with an ethylene-vinyl acetate copolymer emulsion containing 1 to 10 parts by weight of a polyvinyl alcohol and 0.1 to 10 parts by weight of a higher fatty acid ester of a polyvalent alcohol having an HLB of 10 or less per 100 parts by weight of the ...

Stable dispersions of halogen-containing addition polymers, such as polyvinylidene fluoride, in water-dilutable liquid media, for example 2-butoxyethanol, are produced by dispersing pre-formed particles of the polymer, of a number-average size in the range 0.1-10 microns, in the liquid medium in the presence of a polymeric dispersant containing in the molecule a hydrophobic polymer chain and stron...

An admixture for Portland cement compositions and particularly Portland cement concrete compositions which contain pozzolans such as fly ash and blast furnace slag is described which is a mixture containing at least three specified chemical ingredients. The admixture improves the strength and other properties of the compositions.

A.F. Turbak-F.W. SnyderK.R. Sandberg 12-3-2 SUSPENSIONS CONTAINING MICROFIBRILLATED CELLULOSE A suspension of a finely divided material in a liquid suspending medium which swells cellulose, the suspension containing microfibrillated cellulose in an amount sufficient to produce a stable, homogeneous suspension. The microfibrillated cellulose, a form of cellulose having a very large available surfac...

Suspensions of water soluble polymers are disclosed comprising 20 to 40% of a solid particulate water soluble polymer, 0.2 to 1% of an alcohol soluble thickener, 60 to 80% by weight of an organic liquid nonsolvent suspending medium and 0 to 5% of a surfactant. When added to water or aqueous salt solutions, these suspensions provide ready dispersibility of the polymer, followed by rapid dissolution...