Abstract: A process for producing a rigid orthopedic cast in which a bandage material is provided which is impregnated or coated in the form of webs or sheets with a solvent solution of a polyurethane prepolymer, a bifunctional chain-extender and a catalyst. The prepolymer urethane having two isocyanate end groups, being formed by the reaction of a bifunctional compound reactive with an isocyanate group with a molar excess of a diisocyanate, forms a final thermoplastic polymer in the presence of the chain-extender when the solvent is removed under evaporative conditions. The heated thermoplastic impregnated fabric can be wrapped in multiple layers under normal conditions around a broken body member, molded and cooled to form a strong, rigid supportive cast which is porous so as to prevent skin maceration or other medical ramifications related to a non-porous material.

Abstract: A process for producing a sheet-like material having a vapor-deposited metallic layer thereon, which comprises vapor depositing a layer of a metal, a layer of different metals in contact with each other, a layer of a metal alloy, a layer of a metal and a metal compound in contact with each other or a layer of a metal compound as the metallic layer on a support of a polymeric material having a glass transition temperature of at least about 0.degree. C., a composite of said polymeric material and paper, woven or non-woven cloth, or paper using at least one member selected from the group consisting of metals, metal alloys and metal compounds as an evaporating material in the vapor depositing, and then forming a layer of an organic material on the metallic layer by vapor deposition using an evaporable organic material as an evaporating material in the vapor depositing.

Abstract: A material with a fusible backing is made by bringing a substrate into contact with the outside of a rotatable printing screen having fine fusible polymer dust supplied to its inner side and then bringing the substrate out of contact with the screen and heating it from below to fuse the polymer to the substrate. The amount of dust falling out of the screen onto the substrate after the substrate leaves the screen is controlled by suctioning off a portion of the falling dust.

Abstract: An abrasive material and process for manufacturing the same. The process comprises: (i) applying a basic binder layer to a flexible support; (ii) scathering abrasive particles onto the basic binder layer; (iii) drying and subsequently cooling the resultant product; (iv) applying a second binder layer as a sizer to the cooled product of step (iii); (v) drying and cooling the sizer; (vi) loosely rolling up the product of step (v); and (vii) curing and subsequently cooling the product of step (vi) by passing a heating or cooling air stream substantially axially through the rolled-up product. The basic and second binder layers each comprise an aqueous mixture of (A) at least one predominantly ortho-structural resol having a molar ratio of phenolic component to formaldehyde of from 1:(1.1 to 2.5), and (B) at least one polyvinyl alcohol in an amount of from 5 to 30% by weight based on the weight of solid phenolic resin.

Abstract: Rolls of vinyl wall paper and the like are concurrently automatically dispensed and accurately metered and coated preparatory to being accurately cut to length while providing for rapid and uniform metering of such material without wrinkling thereof. The process provides substantial improvements in productivity and material utilization.

Abstract: A continuous business sheet or paper-like web carries image transfer means which is supported by a thin plastics film or layer of tough flexible carrier material. The film or layer of carrier material is removably attached to the sheet and may be removed from the sheet before or after use of the transfer material. Thus, when desired, the transfer material is removed from the business sheet by removal of the carrier material and the business sheet is thus freed from the transfer material and from any problems which may be associated therewith.

Abstract: Liquid is applied to absorbent material, preferably menthol solution to foil-backed paper for use in packaging menthol cigarettes, in uniform and controlled manner.

Abstract: A dry duplicating method comprising the steps of pressure-imaging a continuous master web with images capable of exuding liquid ink under the effects of contact pressure such as roller pressure and collecting the imaged master web on a roll for duplicating use. The master web is such that at least one surface is receptive to the pressure-applied images but neither surface is capable of absorbing the liquid ink to any substantial degree. The imaged web is duplicated by continuously bringing it into surface contact with an ink-absorbent copy web while pressure is applied to exude the liquid ink from the master images onto the copy web to form a duplicate copy, after which the web is continuously rolled up on another roller for reuse.

Abstract: A metal tube covered with a flexible and porous heat insulator is immersed in a processing liquid comprising a silica-containing salt and water followed by drying. The insulator is stiffened and clings to the tube, so that strength, durability and heat resistance is improved, and clamping is facilitated.

Abstract: A process for curing a heat curable coating on a substrate is provided which is characterized by contacting one or both surfaces of the coated substrate with a patterned polyolefin film having a pattern height of at least 4 microns, followed by superposing the substrate and the patterned polyolefin film in alternating layers so as to provide an interleaf consisting of said patterned polyolefin film between adjacent layers of said substrate, and thereafter heating the superposed substrate and patterned polyolefin film at a temperature between about 25.degree.C. and the softening temperature of said patterned polyolefin film.