Abstract: A process for preparing a water-soluble alkyd resin, which comprises(1) reacting(i) at least one of(a) a 1,2-epoxyalkane containing 6 to 28 carbon atoms,(b) a straight-chain internal epoxyalkane containing 6 to 20 carbon atoms,(c) a mixture of one or more of the 1,2-epoxyalkane (a) and/or the internal epoxyalkane (b), or(d) a mixture of one or more of the 1,2-epoxyalkane (a) and/or the internal epoxyalkane (b) and an unsaturated fatty acid containing 12 to 18 carbon atoms in a molar ratio of about 4:1 to about 2:1 of the 1,2-epoxyalkane (a) and/or the internal epoxyalkane (b) to the unsaturated fatty acid;with(ii) at least one of(a') an aromatic carboxyl compound selected from the group consisting essentially of phthalic anhydride, isophthalic acid, terephthalic acid, an ester of isophthalic acid and an ester of terephthalic acid,(b') a mixture of two or more of the aromatic carboxyl compounds (a'), or(c') a mixture of one or more of the aromatic carboxylic compounds (a') and an aliphatic dicarboxylic acid ha

Abstract: A semipermeable membrane composed of a water-insoluble, membrane-forming polymer (hereinafter referred to as "polymer (II)") which is obtained by partially converting the hydroxyl groups of a polymer represented by the following formula (hereinafter referred to as "polymer (I)"): ##STR1## wherein R and R' are halogen, nitro, methyl or ethyl, X stands for a divalent group selected from methylene, ethylene, isopropylidene, ether (--O--), carbonyl (--CO--), sulfide (--S--), sulfoxide (--SO--) and sulfone (--SO.sub.2 --), l and m are integers of from 0 to 4, p is 0 or 1, and n is an integer of from 100 to 1000,to sulfuric acid groups or alkali metal, ammonium or nitrogen-containing basic organic compound salts thereof.

Abstract: Volatile substances are removed from styrene resin by introducing steam into styrene resin suspended in hot water, while agitating the suspension, to maintain the suspension at a temperature of 120.degree. to 150.degree. C. and a pressure of 1.4 to 4 kg/cm.sup.2 G whereby to remove the volatile substances.

Abstract: Disclosed is a method and an apparatus for conducting measurements on at least two physical properties, such as resistance to air permeation, diameter, weight, hardness and length, of cigarette filters. At least two measuring devices are used for conducting the measurement of designated properties, respectively.

Abstract: A cylindrical shell for a rocket motor is prepared by rolling up a thin, high tensile strength metal sheet and an adhesive to form a multi-layer cylindrical inner metal shell, winding on said metal shell filaments having a high tensile strength and adhesive to form an outer cylindrical shell and then curing said adhesives to form a unitary structure.

Abstract: A process for treating waste water containing radioactive substances comprising treating the waste water by reverse osmosis in the presence of at least one organic surfactant selected from the group consisting of anionic surfactants, cationic surfactants and nonionic surfactants.

Abstract: Cigarette filters are prepared by blooming a tow of cellulose acetate fibers, adding or spraying onto the bloomed tow from 1 to 20% by weight (based on the weight of the cellulose acetate fibers) of a plasticizer composed solely of, or comprising as one ingredient, at least one levulinic acid ester, and gathering the thus-treated bloomed tow to form a cigarette filter rod.

Abstract: A flame-retarding resin composition consists essentially of (A) a graft copolymer obtained by bulk and suspension-polymerizing an aromatic monoalkenyl monomer and a vinylcyano monomer and/or a monomeric alkyl ester of acrylic acid or methacrylic acid in the presence of a diene type rubber component, as an optional ingredient (B) a graft copolymer obtained by emulsion-polymerizing a monomeric mixture of the above mentioned monomers in the presence of a diene type rubber latex, (C) a chlorinated polyethylene having a degree of chlorination of 25 to 45 wt. %, (D) tetrabromo-bisphenol A or a derivative thereof and (E) antimony trioxide.

Abstract: A novel hot-melt adhesive composition comprising 100 parts by weight of a polyamide copolymer resin having a melting point of about 80.degree. to about 160.degree. C. and composed of at least three monomers, about 5 to about 30 parts by weight of a terpene-phenol resin having a softening point of about 80.degree. to about 120.degree. C., and about 5 to about 10 parts by weight of a plasticizer.

Abstract: A composition comprising:(a) a curable organosilicic compound containing hydroxyl group or alkoxy group bonded to silicon,(b) cyclic amidines or weak acid salts of said cyclic amidines and(c) a solvent for them.

Abstract: An impact-resistant resin composition comprises:100 parts by weight of a mixture of graft copolymers consisting of;50-90% by weight of a graft copolymer (A) obtained by polymerizing an aromatic monoalkenyl monomer and a vinyl cyan monomer in the presence of a diene type rubber component first under the bulk polymerization condition and subsequently continuing the polymerization under the suspension polymerization condition to substantially complete the polymerization, and having dispersed therein the rubber of an average particle size in the range of from 0.2 to 0.

Abstract: A hot-melt adhesive composition containing a methoxymethylated terpolymer prepared from the corresponding terpolymer that is soluble in lower alcohols and contains a higher nylon salt or an .omega.-amino acid, or a lactam, each of which has more than 10 carbon atoms, and wherein the methoxymethylation ratio of the nylon copolymer is in the range of 10 to 30%.

Abstract: A match head composition is prepared by blending the components of the composition with a binder and water, and wherein the combustion agent of the composition is cellulose nitrate powder wetted with more than 20 weight percent of water and having a particle size of less than 840 microns. The cellulose nitrate is mixed in the composition in an amount of not more than 10 weight percent (water-free basis).

Abstract: A gas generator for inflatable vehicle safety bags comprises a housing defining three independent chambers each containing a charge of gas generating agent in a sealed wrapper surrounding an electrical ignition squib, and layers of heat absorbing wire gauze, a porous plate, and sintered filter sheets overlying the charge. The open top of each chamber is covered by an apertured diffuser, and an apertured deflector plate is secured to the housing above the diffusers. Generated gases passing through the apertures in the deflector plate inflate a relatively small inner knee bag, and laterally diverted gases inflate a larger outer torso bag surrounding the knee bag.The inflation impact may be minimized by delaying the ignition of one or more chambers relative to the other(s), and by igniting only selected chambers in response to low speed collisions.

Abstract: A laminate for interior finish material comprising a frame and a covering material thermally adhered to each other with a hot melt adhesive containing a polyamide copolymer of a melting point of about 80.degree. - 140.degree. C as principal component.

Abstract: A gas generator for an inflatable vehicle safety bag comprises three concentric chambers defined between a diffuser cup and a centrally recessed base member adapted to fit over a steering wheel hub, including an inner chamber for holding an electric ignition squib, an intermediate chamber for holding a canister of gas generating agent, and an outer chamber filled with stacked and coiled wire mesh, and a sintered metallic fiber body. The squib flashes through openings in the inner chamber to ignite the gas generating agent, and the gas produced thereby (primarily N.sub.2) passes through openings in a partition ring, obliquely through the wire mesh where the heat and chemical residues from the reaction are absorbed, and out openings in the diffuser cup through the sintered fiber filter. A diverter ring in the outer chamber serves to channel the gas flow obliquely or diagonally through the wire mesh.

Abstract: Asymmetric hollow fibers useful for effecting separations are prepared by spinning a solution of a fiber-forming cellulose derivative through the outer tube of a double tube-type spinneret into an aqueous coagulating bath to form a hollow fiber and simultaneously injecting an aqueous salt solution through the inner tube of the spinneret to contact the interior of the hollow fiber. The hollow fibers are dipped in warm water, then the free water is removed and the fibers are frozen and dried under vacuum.

Abstract: A process for preparing alkyd resins, characterized by reacting one or a mixture of two or more straight chain, inner epoxyalkanes having 6 to 20 carbon atoms with a cyclic dicarboxylic acid and a polyhydric alcohol.

Abstract: A polyolefin film is coated with an undercoat consisting essentially of a mixture of (a) polyvinylidene chloride or a copolymer thereof containing at least 88 percent by weight of vinylidene chloride monomer units and (b) a chlorinated polypropylene or a graft polymer thereof; at the weight ratio of a/b in the range between 99/1 and 90/10, and a topcoat consisting essentially of a vinylidene chloride copolymer containing not more than 88 percent by weight of vinylidene chloride monomer units.

Abstract: A combustible rocket is constructed with a laminate which comprises high tensile strength metal foils, easily combustible metal foils, and easily combustible adhesive layers. The rocket has sufficient mechanical strength and its shell can be gasified or disintegrated into finely divided pieces after the propellant of the rocket has burnt out at high altitudes. This rocket can be launched safely even in the vicinity of population centers without risk of injury to living things.