Abstract: There is disclosed a fiber-reinforced composite having improved mechanical strength and being composed of metal-coated, carbon fibers embodied within a glass or glass-ceramic matrix.

Abstract: Improved carbon fibers are provided which may be employed in composites to improve the impact resistance thereof. The carbon fibers disclosed are coated with a sizing composition comprised of a blend of an epoxy resin formed by the reaction of epichlorohydrin and p-amino phenol and an acrylonitrile butadiene-styrene (ABS) graft copolymer.

Abstract: Absorbent articles are rendered more blood absorptive by incorporating water soluble amido compounds having the formulaH.sub.2 N--X--NH.sub.2where X is --CO--, --CS--, --SO-- or --SO.sub.2 --, and nonionic surfactants into the articles.

Abstract: Self-bondable polyamides are prepared by reacting an aromatic diisocyanate or diamine with a mixture of terephthalic acid and an aliphatic dibasic acid having at least 6 carbon atoms. These self-bondable amides can also be used as topcoats for wires having basecoats of another polymer, e.g. a polyester, polyester-imide, or polyamideimide.

Abstract: The invention relates to support material usable as such in chromatography or as a starting material which, upon linkage to it of compounds containing ionic groups, ligands or biomacromolecules, can be used as ion exchanger, as a medium in affinity chromatography or in enzymatic reactions and consists of porous, inorganic silanized particles onto which there is covalently bonded an organic, stationary phase built up of (co)polymerized vinyl monomers containing amide groups, said inorganic particles having been silanized with an organo silane.

Abstract: A glazed ceramic substrate for use in electric or electronic devices, obtained by forming a glass coating layer directly on a major surface of a ceramic substrate such as an alumina substrate. The glass as the material of the coating layer contains 50-60 Wt % of SiO.sub.2, 10-30 Wt % of Al.sub.2 O.sub.3, 15-30 Wt % of CaO and MgO, and 2-6 Wt % of ZrO.sub.2 as essential components, optionally with the addition of small amount(s) of at least one of TiO.sub.2, BaO, ZnO, PbO, P.sub.2 O.sub.5, B.sub.2 O.sub.3, Na.sub.2 O and K.sub.2 O. The coating layer formed of this glass is excellent in its high-temperature stability, so that the glazed ceramic substrate is particularly suitable for use in thermal heads of thermal printing devices.

Abstract: The invention relates to a method for the manufacture of packing containers. The container body of the packing container is manufactured by spiral winding of a monoaxially molecular-oriented polyester film. The polyester film is spirally wound onto a mandrel to form a tube with the edge zones of successive turns of the strip overlapping in a continuous joint. The material is sealed within the edge zones by means of surface fusion. The invention also relates to a packing container manufactured in accordance with the method.

Abstract: A fusion-bondable sheet is provided which is used as an overtape for covering a joint portion of a heat-shrinkable cover sheet applied onto a joint of steel pipe or cable and which is also used as a cover sheet for repairing a damaged protecting cover of a steel pipe. The fusion-bondable sheet comprises (a) a crosslinked polyolefin sheet, (b) a fusion-bondable layer formed on one surface of the crosslinked polyolefin sheet, which layer is mainly composed of a polyolefin having a melting point of 80.degree.-200.degree. C., a polyolefin having a melting point of 30.degree.-75.degree. C. and a tackifier, and (c) a flame-retardant sheet bonded to the other surface of the crosslinked polyolefin sheet through a binder or adhesive layer. Preferably, the flame-retardant sheet is larger in size than the crosslinked polyolefin sheet and the edges of the former sheet outwardly extend from the edges of the latter sheet.

Abstract: A five-layered packaging film comprises (a) an outer layer, (b) an adhesive layer, (c) a core layer, (b) an adhesive layer and (d) an inner layer in the order of lamination. The five-layered packaging film of the present invention is favorable in transparency, surface lustre, gas-barriering property. Further, the film has good thermoformability, heat-sealability and suitable shrinkability.

Abstract: The multi-layer polyolefin shrink film of this invention provides a unique combination of shrink tension, optical clarity, cuttability, sealability, shrink temperature range, and tear resistance which is highly desirable for many packaging applications. The preferred film has three layers in which the core layer comprises an ethylene-vinyl acetate copolymer blended with an ethylene-propylene copolymer and each surface layer comprises an ethylene-propylene copolymer.

Abstract: A method of bonding a silicone rubber to a non-silicone pressure sensitive adhesive comprising the steps of treating the surface of the silicone rubber to be bonded with a silicone adhesive, and thereafter applying a layer of the non-silicone pressure sensitive adhesive to the treated silicone rubber surface.

Abstract: A vaginal tampon is disclosed which is made out of a cellular material having semi-open cells and impregnated with a compound of a contraceptive composition and of a delaying medium having gelifying properties when moistened by internal secretions and by preliminary dipping within water, the tampon thus swelling to realize an efficient mechanical barrier while the dry compound is progressively and durably released.

Abstract: A porous sheet comprising a flexible sheet in which a rigid substance is incorporated, wherein pores are formed in the sheet by breaking the rigid substance.

Abstract: A process is provided for making a panty liner type of feminine napkin having an absorbent pad and a fluid permeable cover which is coterminous with the absorbent pad at each of the longitudinal ends. The process involves adhering the wrap to the pad with a water-based emulsion adhesive, selectively moistening the pad and compressing the coterminous longitudinal ends.

Abstract: A reuseable diaper is disclosed made of plural layers of material to provide a soft, absorbent inner face and an outer face having a soft fabric texture with an inner layer of moisture impervious material. The diaper incorporates elastic material to enable it to fit about an infant's body. The materials used for the diaper are suitable for repeated washing and reuse.

Abstract: A method is disclosed for reducing ultraviolet radiation degradation of polycarbonate by means of an ultraviolet radiation screening compound incorporated in a tetrabutyltitanate film which does not interfere with lamination of polyurethane to the polycarbonate surface.

Abstract: The present invention provides for an economical thermoplastic bag which may be employed to contain foods during storage and, most importantly, may be used to contain such foods during reheating preparatory to serving. The bag structures of the present invention comprise a two layer laminate structure, the inner bag layer, or that surface layer in contact with the foodstuffs, being formed from a thin film of polyester. The outer layer of the bag laminate, or that surface of the bag which comes into direct contact with the cooking or reheating vessel, comprises a polyacrylonitrile homopolymer. The polyacrylonitrile layer, having a melting or sticking temperature on the order of above 210.degree. C. is stable and will not stick to the vessel side walls while foodstuffs are being reheated therein. Obviously the bag containing foodstuffs is intended to be immersed in a fluid such as water during the reheating operation.

Abstract: Surfaces of a blend of (1) unvulcanized chlorosulphonated polyethylene and/or chlorinated polyethylene, (2) a bituminous petroleum derivative of softening point in excess of 100.degree. C. and an asphaltene content in excess of 25% by weight and (3) a noninterfering anti-blocking agent are joined by radio frequency dielectric welding.

Abstract: This invention relates to a polyvinyl chloride sheet comprising crosslinked thin layer(s) and uncrosslinked layer(s), at least one surface of the sheet being a crosslinked layer. The thickness of the said crosslinked layer ranges between about 0.05 to about 2 microns, and the degree of the chlorination of the said layer is not greater than about 45% of that of the uncrosslinked layer, and the degree of heat shrinkage is not greater than about 1%. This sheet provides many advantages for blood bags and infusion bags.

Abstract: A method and article are disclosed wherein metal is bonded to polycarbonate by a polyurethane adhesive which comprises an isocyanate-terminated polyester urethane crosslinked with a trifunctional species such as triisopropanolamine.