Abstract: Bonded fibrous nonwoven textile fabrics having excellent strength and textile-like softness, drape and hand which are intermittently bonded with synthetic resins in predetermined print patterns of binder areas having a relatively high, uniform concentration of from about 50% to about 120% by weight of resin binder in the binder areas, based on the weight of the fibers therein, said binder areas having very sharply defined borders or edges with a minimum of binder feathering thereat whereby the optical density of the bonded fibrous nonwoven textile fabric very sharply increases from substantially zero to a maximum of at least from about 0.6 to about 1.0 or greater in a distance of less than about 1 mm. (0.

Abstract: This invention relates to switch-proof labels useful for marking objects in a manner such that if one were to attempt to transfer the label to another object the label would be destroyed or defaced to such an extent that its transference would be noticeable. The label comprises laminate comprising a transparent or translucent outer sheet having an information containing pattern printed on its inner surface, said printed inner surface having a coating of pressure sensitive adhesive film coated thereon. The printed pattern has a lesser affinity for the outer sheet than the printed pattern has for the adhesive. The affinity of the adhesive for the surface to which the laminated label is adhered and to the printed pattern is greater than the affinity of the printed pattern for the outer sheet. In a preferred embodiment the free side of the adhesive film of the label is covered by a release sheet.

Abstract: A tape for use in securing a sheet to a surface has adhesive extending part way across one face and the full length thereof thus leaving an uncoated portion to overlie a margin of the sheet. The line of demarcation between the coated and uncoated portion is indicated by regularly spaced indicia including angles the apeces of which preferably establish both transverse and vertical reference lines or ensure accurate tape placement relative to such reference lines.

Abstract: Paper for use in pressure-sensitive copying systems consists of a base paper one surface of which is machine glazed and the opposite surface of which is left rough due to expulsion of moisture during manufacture. Those sheets which are provided with a color reactant have the reactant applied to the glazed surfaces thereof and those sheets which are provided with a microcapsule coating have the microcapsule coating applied to the rough surfaces thereof.

Abstract: A composite article comprising at least two load-bearing members one within the other and having mutually contacting surfaces adapted to generate a restraining force resisting relative axial movement of the members, wherein the members are constructed such that a local reduction in said restraining force takes place as the local tensile stress in the article increases.

Abstract: A method for producing transparent or pigmented films from resin particles, of a particular class of laurolactam containing polyamide copolymers and/or terpolymer, said film suitable as a coating and/or heat melt adhesive for fabrics and other materials. The method comprises drying the resin while in the solid state until it is substantially water free, extruding the dried resin particles while heating to a temperature sufficient to volatilize and drive off unreacted monomer contaminants, but below the degradation temperature of the resin, expelling the molten resin from the extruder onto heated, sheeting dye means to form a film therefrom, dropping the film onto a substrate backing material, and running the film and backing through a roller to achieve a uniform and controlled thickness.

Abstract: A plastic bag such as trash can liners, grass and leaf bags, sandwich bags and the like is reinforced by placing spaced ribs therein, integral with the wall structure, the ribs having a rib-to-rib spacing in the order of 1/8 to 2 cm, the ribs being peaked and merging smoothly from a projecting peak to the thickness of the walls between the ribs, the peaks extending about 1.5 to 10 times the wall thickness of the film which is preferably, in the order of about 0.4 to 2.0 mils. Upon extrusion, the extrusion die is formed with small notches with rounded corners so that the ribs are extruded while the film material is extruded, and provide additional material in the region of the ribs which merges smoothly with the material being extruded to form the film. Such rib-reinforced bag structures may be produced by forming a continuous roll of such bags, the individual bags in such a roll being readily separated along predetermined lines of weakness.

Abstract: An apparel interlining structure having a plurality of areas, on one surface of an interlining base, to which a hot-melt sealant synthetic resin has been applied, the interlining base being impregnated entirely, except for at least a part of the surfaces of the sealant-applied areas, with a water-repellent composition having poor co-meltability with the above synthetic resin, and a method for its production.

Abstract: A resinous product has high resistance to flame spread, good heat release and exhibits a low smoke-developed rating when exposed to flame or to indirect or radiant heat, and is flexible, tough and resistant to cracking and embrittlement upon curing. Such a product is the condensation product of resorcinol with or without included phenol, and an admixture of paraformaldehyde and furfural or furfuryl alcohol or both. The resorcinol starting material of this invention can also suitably be used in the form of a B-stage or partially cured resin of resorcinol-phenol-formaldehyde which is then condensed with the aforesaid aldehydes or such aldehyde substance and furfuryl alcohol. The product is useful in making castings or moldings which are resistant to embrittlement or cracking upon curing, and in making tough fiberglass parts, and it can contain fillers or the like. A method of making the product and articles is provided.

Abstract: The invention relates to an improved phenol-aldehyde resole resin composition for battery separators and a fibrous battery separator impregnated with the composition. Said composition comprising a resole resin with particular soluble hydroxy organic salts that do not salt out and improve the oxidation resistance of the battery separators.

Abstract: Mixed ester products obtained by treatment of a triglyceride under transesterification conditions with a polyoxyalkylene glycol and a high molecular weight dicarboxylic acid, such as polymer acids, are useful metal working fluids. The modified triglycerides exhibit enhanced thermal stability and can be used either in neat form or in solution and are readily compatible with water to provide stable aqueous emulsions and dispersions having superior lubrication properties.

Abstract: A driographic plate capable of being direct imaged by pen, pencil, typewriter, toner powder, etc. comprising a substrate having a coating thereon, the coating comprising a continuous medium having a solid fluorinated compound containing at least one fluorinated aliphatic radical uniformly dispersed therethrough in a manner such that the coating surface is ink repellent when dry. On direct imaging, the imaged areas will readily accept ink and prints can be made therefrom without necessity of a press dampening system.

Abstract: An embossed film-to-foam laminate is provided having perforations through the film selectively distributed essentially along the sidewalls and valleys of the embossed pattern. The integrity of the laminated film material is retained on the crowns of the embossed patterned surface, since the perforations in the film material are mainly distributed on the sidewalls and valleys of the embossed pattern. The laminated product has a water-resistant and abrasion-resistant upper surface imparted by the film material on the crowns while the perforations in the sidewalls and valleys permit sound to pass through the film and be exposed to the acoustical matrix of the open cell foam component of the laminate. The film and/or the foam material are heated to supply adhesive material by melting or softening which serves to bond the film material to the foam.

Abstract: A process for making electronic filter circuit components is provided which comprises forming a flat electrically conductive layer on a wafer formed of ceramic, or of other appropriate dielectric material, the conductor being shaped to provide a portion of an inductive coil, or a capacitive element. The process of the invention assures relatively low resistance in the conductive layers so as to provide a filter circuit of a relatively high quality factor (Q), when a plurality of such wafers are stacked and appropriately interconnected.

Abstract: A large diameter rocket launch tube comprised of a pair of thin sheets wh are rolled and positioned in concentric relation with the seams disposed in spaced (180.degree.) relation. A pair of reinforcing weld strips are positioned inside the tube adjacent the seams, and a second pair of reinforcing strips are positioned inside the tube intermediate the first pair of strips. A bonding agent is spread on the inner tube and the tubes are assembled and spot welded prior to having the adhesive cured.

Abstract: A receptor sheet for use with an electronradiography system and having a relatively thick core layer bonded between a relatively thin image carrier layer and a relatively thin antistatic conducting layer.

Abstract: Polyalkylenetrimellitate imide polyalkylenetrimellitate ester imides suitable for use as self-bonding varnish coatings for magnet wire, which can be produced by condensation of a trimellitic acid compound, a diprimary amine, an alkanol amine and a glycol.

Abstract: Polyester textile materials having improved flammability characteristics even after repeated washings are made by applying thereto an aqueous solution or organic solvent solution containing at least 0.5% by weight of a material having the structure ##STR1## or mixtures thereof, and drying to deposit thereon from 0.5 to 15% of the material by weight. Fabrics, including both 100% polyester fibers and blends with up to 50% by weight of cellulose triacetate fibers containing fire retardant within the fibers, printed with colored designs using conventional pigment colors free from fire retardants also have their flammability characteristics improved by such treatment.

Abstract: Improved septa for chromatographic apparatus and procedures comprise disc or cylindrical bodies of silicone rubber with a coating of polyimide which may in turn be covered by a coating of Teflon.

Abstract: A novel printing surface for recording indicia by an intensely colored iridescent interference color is provided by a white thin film of an iridescent pigment on a base web. The vivid color is developed by a dye which may be contained in the pigment coating itself, as finely divided particles not apparent to the eye, or the dye may be applied from an external source, as in a manifolding system. The pigment comprises an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index which is greater than about 2.0, and may be mixed with up to 75% by weight of diluent material to form a low-cost recording composition.