Abstract: A porous sheet material made of a polymeric material comprising mainly a polyurethane elastomer, which comprises a base layer of vertically penetrating vesicular structure and a surface layer of microporous structure integrally provided on at least one of the surfaces of the said base layer, which is suitable for the manufacture of a leather-like sheet product.

Abstract: The invention provides novel polyesters based on 100- 75 equivalent percent of a phthalic acid, 0- 25 equivalent percent of an aliphatic dicarboxylic acid and 150- 225 equivalent percent of a C.sub.5 - C.sub.12 diol. The polyesters can be admixed with amino resins and an acid catalyst to form a coating composition which can be stoved into a hard tough coating.

Abstract: An anti-pilling polyester fiber having an intrinsic viscosity of 0.32 to 0.48 which has the following physical properties: tenacity, 3.5 to 5.0 g/d; knot tenacity, not more than 3.0 g/d; ratio of tenacity and knot tenacity, not less than 1.5.

Abstract: A dialysis membrane comprising a plurality of polyvinyl alcohol hollow fibers of substantially homogeneous structure having a degree of orientation (.pi.) in the range of 60% .ltoreq. .pi. .ltoreq. 98% and a degree of swelling (.zeta.) in the range of 1.05 .ltoreq. .pi. .ltoreq. 1.80 times.

Abstract: A two component article of manufacture useful for removing paper adhered to a surface with a starch-based adhesive comprising a sealed moisture-proof first package containing an enzyme composition comprising either a carbohydrase or a carbohydrase and a protease and a second package containing a liquid comprising (a) an activator for the enzyme composition, (b) a wetting agent and (c) a solvent for reducing the rate of evaporation of water from paper. Paper is removed from the surface by mixing the contents of the two packages with hot water, applying the aqueous composition to the paper and removing the paper after the enzyme composition has degraded the adhesive properties of the adhesive.

Abstract: In a process for preparing suede sheet materials having desirable tactile characteristics and good coloring, fibers are colored with a dope dye before being formed into a fibrous mat. The mat is impregnated with a binder and subsequently treated to produce a sheet material having a napped surface. The sheet material is then dyed to obtain the product.

Abstract: A process for preparing a bland, stable, aqueous dispersion of soybeans comprising:I. providing enzyme active soybean cotyledons, either intact or subdivided, while maintaining the moisture level thereof within prescribed limits;Ii. heating said soybean cotyledons sufficiently to inactivate the lipoxidase enzyme contained therein and to partially tenderize said soybean cotyledons;Iii. further tenderizing said soybean cotyledons until the soybeans exhibit a tenderometer value of between about 16 and about 300 pounds per 100 grams of soybeans on an equivalent whole bean basis; andIv. homogenizing an aqueous slurry of said tenderized soybeans, said slurry having a soybean concentration of less than about 20% by weight, in at least one pass through a homogenization zone at a pressure between about 1000 and 10,000 psi at a temperature between about 32.degree. F. and a boiling point of the slurry at the pressure within the homogenizing zone, thereby obtaining a bland, stable soybean dispersion.

Abstract: Synthetic diene rubber stock for the production of vulcanized articles can be improved with respect to thermal discoloration at relatively high temperature by mixing therewith a high molecular weight alkylene oxide compound. The high molecular weight alkylene oxide compound also is effective to facilitate the drying operation of the wet rubber stock by means of a screw type drier.

Abstract: A self-bonding insulated wire which comprises an electroconductive wire and a varnish composition containing 100 parts by weight of a copolyamide and 10 to 25 parts by weight of a thermoplastic linear polyhydroxypolyetherester resin coated thereon, the insulated wire being useful for the manufacture of a deflecting coil which is hardly deformed on heating.

Abstract: A sheet material having leather-like grain, excellent scuffing and abrasion resistance and superior dyeability comprising in combination, a substrate, and intermediate layer of 0.05 to 2.5 mm thickness consisting of a finely napped porous polymer bonded to said substrate and an upper layer consisting of a polymeric coating of thickness ranging from 1-100 microns. In typical embodiments, the upper layer may be a polymeric coating material such as linear or cross-linked polyurethanes, the intermediate layer may be a porous polyester, polyamide, vinyl or elastomeric polymer, e.g. a polyurethane, and the substrate may be a woven or non-woven fabric. In preparation of this sheet material, the intermediate layer is pressed and condensed to about 10 to 90% to a density of from about 0.20 to 0.50 g/cc.

Abstract: To improve the resistance of pigs to gastro-intestinal disorders, the endotoxins of one or more of the pathogenic E. coli serotypes C8, 045, 0138, 0139, 0141, 0147 and 0149 are introduced into the pig intestine. Administration, which may for example be in water or in a pig feed, stimulates the pig intestine to produce antibodies to the E. coli organisms.

Abstract: A cryosurgical instrument having a purge cycle of indeterminate duration, separate and apart from its cooling and warming modes, which can be conducted with a refrigerant consisting of a low pressure unsaturated or saturated gas. During the purge cycle, the pressure of the refrigerant gas is regulated to a level below that which is required to effect a Joule-Thomson expansion of the gas upon its entrance into an expansion chamber adjacent the tip of the instrument while simultaneously exhausting the effluent to the atmosphere through an exhaust valve actuated by a footswitch.

Abstract: A sheet material having leather-like grain, excellent scuffing and abrasion resistance and superior dyeability comprising in combination, a substrate, an intermediate layer of 0.05 to 2.5 mm thickness consisting of a finely napped porous polymer bonded to said substrate and an upper layer consisting of a polymeric coating of thickness ranging from 1-100 microns. In typical embodiments, the upper layer may be a polymeric coating material such as linear or cross-linked polyurethanes, the intermediate layer may be a porous polyester, polyamide, vinyl or elastomeric polymer, e.g. a polyurethane, and the substrate may be a woven or non-woven fabric. The upper layer is a laminar structure comprising a plurality of laminae, the bottom lamina consisting of a cross-linked polyurethane elastomer.

Abstract: Traditionally flowers are dried for decorative purposes by being left immersed in a bed of fine sand. The sand holds the flower in a constant conformation and prevents damage such as the crinkling of petals during dehydration. The invention provides a process in which the labor-intensive operation of covering the flower manually with the sand is avoided. The sand is fluidized by means of a gentle current of air rising therethrough, enabling the flower to be simply immersed in the sand without damage or change in conformation. Fluidization is stopped, and the flower is instantly locked in place by the sand ready for dehydration. After dehydration, the flower can be removed from the sand easily by re-fluidizing the sand.

Abstract: For treating a steel sheet for subsequent enamelling of the sheet with one coat of enamel: After rolling the sheet, there is deposited thereon a coat of nickel and/or cobalt, a salt of said metals or mixtures of said salts. After drying, the sheet is annealed in a decarburizing atmosphere so as to substantially totally decarburize it and, during the cooling of the annealing cycle, the coated sheet is subjected to the action of an oxidizing atmosphere containing 2 to 7% of water vapor and having an H.sub.2 /H.sub. 2 O ratio which is less than 6.

Abstract: A heat-adhesive film laminate comprising a film of a plastic material having excellent heat resistance such as polyesters, polyamides or polycarbonates laminated on one side of a metal foil such as aluminum foil, copper foil, iron foil or the like and a film of a resin comprising predominantly block copolyester having a melting point of higher than 140.degree. C but lower than the temperature at which the characteristics of the plastic film is deteriorated and a Young's modulus .epsilon. (dyne/cm.sup.2) and a breaking elongation (.DELTA.l/lo) .times. 100 (%) when measured at 20.degree. C and 100.degree. C being as follows, respectively:10.sup.7 (dyne/cm.sup.2) < .epsilon. < 10.sup.10 (dyne/cm.sup.2) and(.DELTA.l/lo) .times. 100 > 40 (%)laminated on other side of the metal foil.