Abstract: A packing material of braided yarns is provided wherein the yarns have a glass and/or acrylic core and an outer layer of polyphenylene sulfide fibers, either alone or in combination with other unreactive fibers such as aramid, carbon or graphite fibers.

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 polyamide-imide.

Abstract: The scuff resistance of a high-pressure laminate is improved by incorporating in or very near the surface thereof, finely divided polyethylene wax preferably having a particle size of about 1-25 microns and a melting point of 220.degree.-230.degree. F. The wax is incorporated as part of a coating mixture applied to the face of an unimpregnated decor paper sheet in an ultra-thin layer, which layer is dried at a temperature below the wax melting point and then impregnated with conventional melamine-formaldehyde resin. The impregnated sheet is placed onto a sheet of convention phenolic resin impregnated core sheets and consolidated in the conventional way under heat and pressure. During consolidation, the wax particles "bloom", or migrate to the surface. The finished laminate surface has greatly improved scuff resistance.

Abstract: Relates to lubricating thermoplastic synthetic fibers comprising the application to said fibers of a modified polyoxyalkylene polyol which polyol is modified by capping all of the hydroxyl groups with benzyl, aryl, substituted benzyl or aryl groups or alkyl groups having 1 to 4 carbon atoms.

Abstract: A bundle of continuous carbon filament fibers treated with a sizing agent containing as an active component a water-dispersible resin composition consisting of about 65% to 95% by weight of water-dispersible urethane compound having at least one epoxy group and at least one quaternary ammonium group and about 5% to 35% by weight of an epoxy resin. The bundle has an excellent fretting resistance, is extremely handleable, and produces a carbon fiber-reinforced composite material having excellent physical properties.

Abstract: Protectively coated flanged pipe comprising a pipe with a relatively low durometer surface coating in the pipe section and a relatively higher durometer coating, free of the tendency to creep or cold flow over a period of time, on the flange section surfaces. Preferably, this product is made by a process, wherein the pipe is first surface roughened throughout and then selectively primed in the pipe section only, leaving the flange section surface non-receptive to a subsequent primer, which upon setting of the primer, readies the pipe for dip coating in the lower durometer resin protective coating. The dip coating, upon fusion, is then easily stripped from the flange section surface, due to the non-retention there in the unprimed areas, and the flange section surface is subsequently coated, preferably by spraying, with a higher durometer coating which effects protection of the flange joint without the tendency to creep over a period of time.

Abstract: Bonding compositions for bonding polyesters or copolyesters to poly(vinyl alcohol) or copolymers thereof, the composition comprising a poly(esteramide) having an inherent viscosity of at least 0.8 dl/g, said poly(esteramide) containing repeating units from at least 70 mol percent of a dicarboxylic acid selected from pimelic, azelaic, sebacic acid or combinations thereof and optionally up to 30 mol percent of a second linear aliphatic dicarboxylic acid having at least four carbon atoms connected linearly between the two acid groups or an aromatic dicarboxylic acid; repeating units from 10 mol percent to 30 mol percent of a diamine selected from 1,6-hexanediamine, 1,4-cyclohexanebismethylamine or combinations thereof; and repeating units from 90 to 70 mol percent of a glycol selected from ethylene glycol, 1,4-butanediol, 1,4-cyclohexanedimethanol or combinations thereof.

Abstract: Bonding compositions for bonding polyesters or copolyesters to poly(vinyl alcohol) or copolymers thereof, the composition comprising a poly(esteramide) having an inherent viscosity of at least 0.8 dl/g, said poly(esteramide) containing repeating units from 70 to 90 mol percent of a dicarboxylic acid selected from adipic, pimelic, suberic, azelaic, sebacic acid or combinations thereof and 10 to 30 mol percent of a second linear aliphatic dicarboxylic acid having at least four carbon atoms connected linearly between the two acid groups or an aromatic dicarboxylic acid; repeating units from 10 mol percent to 30 mol percent of a diamine selected from 1,6-hexanediamine, 1,4-cyclohexanebismethylamine or combinations thereof; and repeating units from 90 to 70 mol percent of a glycol selected from ethylene glycol, 1,4-butanediol, 1,4-cyclohexanedimethanol or combinations thereof.

Abstract: An anti-fogging film derived from the curing of polyvinyl alcohol, finely divided silica and an organic silicon compound and a hydrolysate thereof which is capable of forming silanol by hydrolysis and having such a carbon/silicon element ratio that said ratio of the surface layer of the film is larger than that of the entire film, the production process thereof, and an article covered with said film are described. The above-mentioned film has an excellent anti-fogging property, surface hardness and good service durability.

Abstract: The invention relates to a synthetic technical multifilament bicomponent yarn, which is particularly meant for use in safety belts, ropes and nets.The bicomponent yarn is preferably of the sheath-core type of which only the core contains a black pigment composed of carbon black particles and/or a reddish pigment composed of iron oxide particles and/or a whitish pigment composed of titanium dioxide particles of the rutil type, which pigments are insoluble in the polymeric material. The tenacity of the yarn may be about 70-85 cN/tex and the elongation at rupture of 7 to 15%.

Abstract: A continuous filament having a special geometrical cross-section to give controlled fracturability so as to produce free protruding ends, multifilaments of which produce yarns coming within the scope of U.S. Pat. No. 4,245,001; the cross-section of the textile filament having a main body section and one or more wing members connected to the body section, the body section comprising about 25 to about 95% of the total mass of the filament and the wing member or wing members comprising about 5 to about 75% of the total mass of filament, with the filament being further characterized by a wing-body interaction (WBI) defined by ##EQU1## where the ratio of the width of the filament cross-section to the wing member thickness (L.sub.T /Dmin) is .ltoreq.30.

Abstract: Improved polyetherimide compositions and processes for their production are described. Various polyetherimide derivatives including water-soluble and tri-functional isocyanate cross-linked resins are described. They permit production of water-based enamels and coatable particulates which may be employed in, for example, formulation of insulated electrical conductors.

Abstract: Non-woven bioactive, water and alcohol-repellent medical fabrics are described. The fabric is provided with a bioactive finish which is substantive on the fabric and is able to destroy migrating and cross-contaminating bacteria, algae and fungi. The bioactive material is 3-(trimethoxysilyl)-propyloctadecyl dimethyl ammonium chloride and is present to the extent of about 0.15 to about 1.05% on the basis of the fabric weight. A fluoropolymer provides the necessary alcohol and saline repellency.The described fabrics have numerous medical uses such as surgeon's gowns, medical drapes, isolation gowns and instrument wraps.

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 polyamide-imide.

Abstract: The present invention provides an oriented film made from a blend of nylon 66 with another nylon selected from the group consisting of nylon 6, nylon 11, nylon 12 and nylon 6,12 and having a moisture content of from 0.75 to 2.25% by weight. The weight proportions of nylon 66 to the other nylon are in the range of from 94:6 to 10:90. Such films are suitable for laminating to a sealant web, for food packaging applications.

Abstract: A polypropylene strap for use in packaging articles. The polypropylene strap has a high tensile strength, a low elongation, a high rigidity, a high abrasion resistance, and flexible surfaces, and it is not easily split in the longitudinal direction. This strap has superficial layers stretched at a low draw rate of 1.2-3, and an inner portion stretched at a high draw rate of 10-18. The total thickness of the superficial layers is 5-50% of the total thickness of the strap. The strap is manufactured by stretching a belt-like material, which has been extruded from a die, in the lengthwise direction thereof at a volume ratio of 4-9, heating the surfaces of the resulting belt-like material to put the molecular chains in the superficial layers only thereof in a non-oriented state, and then stretching the belt-like material as a whole at a draw ratio of 1.2-3.

Abstract: A heat resistant resin produced by reacting (A) a polyamideimide resin with (B) an alcohol component and (C) an acid component with heating is soluble in a cresol type solvent and gives coatings excellent in heat resistance, thermal shock resistance, wear resistance, resistance to hydrolysis, etc., suitable for enamelled wire.

Abstract: The invention relates to filaments and fibers spun from at least 98% by weight of polyacrylonitrile and relative viscosities of between 2.5 and 6.0 which have tensile strengths of more than 50 cN/tex with an elongation at break of at most 15% and a shrinkage at the boil of less than 5% and to a process for their production which comprises at least 2 stretching stages with a minimum stretching ratio of 1:9 as well as a concluding setting stage in which the filaments are treated without shrinkage in dry heat at 170.degree. to 280.degree. C.Such filaments and fibers are distinguished by an increased resistance to swelling and hydrolysis and they are particularly suitable for reinforcing organic and inorganic materials.

Abstract: The invention provides a process for rendering textiles or barrier fabric material flame retardant and smolder resistant with a flame retardant and smolder resistant composition comprised of an aminophosponate ester in combination with a thermosetting, nitrogen-containing resin and preferably a reactive elastomeric latex.

Abstract: In injection molding thermoplastic resin compositions containing reinforcing materials and/or fillers, high quality molded articles superior in surface gloss and exhibiting substantially no surface defect can be obtained, by employing a technical measure, in which only superficial layer of the inner wall surface of the mold is selectively heated, by high-frequency induction heating, to a temperature above the heat distortion temperature of the thermoplastic resin composition employed prior to injection molding and cooling and solidifying the resin.