In the industrial production of cyclohexanone from cyclohexane by oxidation with gas mixtures containing oxygen, impurities arise which fall in a boiling range between the boiling points of cyclohexanone and cyclohexanol and additionally have a neutral reaction, so that they are very difficult to remove from this cyclohexanol/cyclohexanone mixture in the course of the work-up to give pure cyclohex...

In a method of manufacturing positive tube plates for accumulators a mixture containing essentially Pb and Pb compounds is filled into the tubes of the tubular pockets, which contain a lead core connected to the terminal strip, from the ends of the tubes remote from the terminal strip, until the tubes are full, whereupon the filling openings of the tubes are closed. In this method lead dust is gra...

GB? A basket loader apparatus for a machine to cast commoning straps onto the positive and negative plate lugs of plate stacks used to form a multi-celled lead acid storage battery. As configured the apparatus is designed to hold a basket which contains said stacks and hold it during the casting operations. Prior to the start of said operation, the apparatus is further adapted to properly align th...

A safety ski binding has a support member supported for pivotal movement about a vertical axis, and a sole holder is supported on the support member for pivotal movement about a horizontal axis. A lever supported on the support member for pivotal movement about a horizontal axis has a first locking element engageable with a second locking element on the rear of the sole holder and has a control su...

This invention relates to dry, dense, hydrophilic polyurethane foam cleaning pads containing abrasives, detergents and combinations thereof dispersed integrally therein as well as to a method of manufacturing these pads. The pads' surfaces are strengthened by the densification of the reacting prepolymer resin during manufacture, and preferably the pads have at least one surface textured for additi...

Polyurethane foams with excellent physical properties can be obtained by using a partial salt between N,N-dimethylaminopropane-1,3-diamine (DMAPA) and a branched octanoic acid.

In a method for identifying one or more botanical component parts from plants, a sample of the component parts is irradiated with electromagnetic radiation within the visible and/or ultra-violet and/or X-ray range for excitation of the component parts to fluorescence which is analyzed for determining characteristic fluorescence from the component parts. For determining the relative contents of the...

A biaxially oriented polyester film composed of a polyester composition comprising (A) 100 parts by weight of a substantially linear polyalkylene terephthalate having ethylene terephthalate as a main structural component, (B) 0.01 to 5 parts by weight of an ester of an aliphatic polyol having at least 4 hydroxyl groups in the molecule with an aliphatic monocarboxylic acid having at least 8 carbon ...

A process for producing a sheet-like material of split fibers, and an apparatus therefor are described. The process includes the steps of introducing a plurality of continuous fiber bundles into a liquid contained in an inclined splitting unit which is gradually widened toward the lower end thereof, the unit being divided into a plurality of grooves so that each fiber bundle travels in the liquid ...

Thermally coalescible acrylic resin dispersions comprising particles of single-phase, surfactant-free, random acrylic polymers or copolymers, containing at least 80% by weight of acrylic units, dispersed in a surfactant-free medium that comprises a compatible liquid plasticizer that is nonvolatile at room temperature and is not a monomer of any of the polymeric components. Incorporation of a photo...

Filament-wound composite bodies are disclosed. These bodies contain filament-wound fibers and resin. The resin, when cured, has a density of less than 1.05 g/cc and exhibits a water pick up of less than 1% by weight. When uncured, the resin contains an aromatic vinyl hydrocarbon monomer and as its major component poly(1,2-butadiene), carboxy-terminated poly(1,2-butadiene) or mixtures thereof and h...

Mechanically stable styrene polymer foams having highly desirable physical properties are prepared employing as a blowing agent a mixture of lower alcohols with chlorofluoromethanes.

A composition for a crosslinked polyolefin foam is prepared from 20 to 75% by weight of a crystalline propylene copolymer containing 1 to 15% by weight of ethylene and having a crystallinity higher than 50% and 80 to 25% by weight of polyethylene.

A polyester-melamine-isocyanurate thermosetting foam composition having improved flame, smoke and nonburning properties with good compressive strength, which foam composition is prepared by the admixture of a saturated polyester resin, a flame-retardant amount of melamine, a methylene diisocyanate, in the presence of a silicone-glycol surfactant, a fluorocarbon blowing agent and a trimerization ca...

Aqueous emulsions of epoxy resins, which can be used to treat glass cloth used in the preparation of printed circuit board laminates, are produced by combining an epoxy resin and a flame retardant phenol, such as tetrabromobisphenol A, with a selected nonionic surface active agent, such as an alkylaryl polyether alcohol, monomethylol dicyandiamide curing agent and, if needed, a catalyst.

A free expandable rubbery composition comprising an ethylene/ alpha -olefin copolymer or terpolymer, a blowing agent and a crosslinking agent, said ethylene/ alpha -olefin co- or terpolymer simultaneously meeting the following requirements (A), (B) and (C): (A) it contains 55 to 73 mole % of an ethylene unit, (B) it has an (EBxTS) value of at least 7,000 wherein EB represents the break elongation ...