Abstract: A weather and impact resistant resin composition which comprises: a graft copolymer (A) composed of a continuous phase comprising from 10 to 90% by weight of residues of an aromatic vinyl monomer, from 10 to 40% by weight of residues of an .alpha.,.beta.-unsaturated nitrile monomer and from 0 to 80% by weight of residues of methyl methacrylate, and particles of an acrylate rubber having a weight average particle size of from 0.1 to 0.45 .mu.m dispersed in the continuous phase, said acrylate rubber comprising from 70 to 98% by weight of residues of an alkyl acrylate having from 2 to 12 carbon atoms, from 1.92 to 27% by weight of residues of a vinyl monomer copolymerizable with the alkyl acrylate and from 0.08 to 3% by weight of residues of a multifunctional vinyl monomer; a graft copolymer (B) composed of a continuous phase comprising from 10 to 90% by weight of residues of an aromatic vinyl monomer, from 10 to 40% by weight of residues of an .alpha.,.beta.

Abstract: An alkenylsuccinic anhydride having a high quality is obtained at a low temperature in a high yield by subjecting an olefin having 2 to 90 carbon atoms and maleic anhydride to addition reaction under heating in the presence of a solid acid/base catalyst.

Abstract: A biaxially drawn laminated films having a good oxygen barrier property, a good mechanical strength and high thickness uniformity are made by a process comprising:a first step of forming a substantially amorphous unoriented laminated film comprising a saponified ethylene/vinyl acetate copolymer having an ethylene content of 25 to 45 mole % and a polyamide, and drawing the film in the longitudinal direction at a deformation rate of at least 10,000%/min and a draw ratio of 2.7 to 3.5 at 45.degree. to 65.degree. C. by using a roll drawing machine;a second step of transferring the film drawn at the first step to the transverse drawing-initiating point of a tenter type transverse drawing machine, expanding the width of the film at an angle of not larger than 6.degree. with respect to the central line of the film at least until the mechanically set ratio of the tenter clip distance to the original distance becomes at least 1.

Abstract: A polyester being liquid at 25.degree. C. comprises a polybasic acid and a polyhydric alcohol as its monomer constituents, wherein the polyhydric alcohol is composed at least partially of 1,2-butanediol.

Abstract: A medical material comprising a shaped article made of a soft vinyl chloride resin composition, a layer formed on the shaped article and composed essentially of crosslinked gelatin having good bio-compatibility with a living body, and an intermediate bonding layer firmly bonding the crosslinked gelatin layer to the shaped article.

Abstract: A broad and continuous sheet or film is uniformly heated in a highly precise manner and with a specific heat profile by using a plurality of radiation heating furnaces, wherein in the interior of each radiation heating furnace, a plurality of rows of heaters are arranged rectangularly to the direction of delivery of the sheet or film to be heated. A thermometer for measuring the temperature of the sheet or film is arranged in the vicinity of an outlet for the sheet or film outside each radiation heating furnace. Outputs of heaters arranged within the radiation heating furnaces located just before the respective thermometers are controlled based on the temperatures detected by the respective thermometers by using a computer.

Abstract: A polyester being liquid at 25.degree. C. comprises a polybasic acid and a polyhydric alcohol as its monomer constituents, wherein the polyhydric alcohol is composed at least partially of 1,2-butanediol.

Abstract: A glass fiber-reinforced heat resistant resin composition which comprises:from 5 to 90% by weight of a pelletized polymer (A) obtained by suspension-polymerizing a vinyl aromatic monomer optionally together with an unsaturated nitrile monomer and a vinyl monomer copolymerizable therewith, in the presence of chopped glass fiber strands, and comprising from 50 to 90% by weight of the chopped glass fiber strands and from 50 to 10% by weight of a resin component consisting essentially of from 40 to 100% of residues of the vinyl aromatic monomer, from 0 to 60% of residues of the unsaturated nitrile monomer and from 0 to 30% of residues of the copolymerizable vinyl monomer;from 95 to 10% by weight of a polymer (B) comprising from 10 to 50% of residues of a maleimide monomer, from 90 to 50% of residues of a vinyl aromatic monomer, from 0 to 10% of residues of maleic anhydride and from 0 to 30% of residues of a vinyl monomer copolymerizable therewith.

Abstract: A weather and impact resistant resin composition which comprises: a graft copolymer (A) composed of a continuous phase comprising from 10 to 90% by weight of residues of an aromatic vinyl monomer, from 10 to 40% by weight of residues of an .alpha.,.beta.-unsaturated nitrile monomer and from 0 to 80% by weight of residues of methyl methacrylate, and particles of an acrylate rubber having a weight average particle size of from 0.1 to 0.45 .mu.m dispersed in the continuous phase, said acrylate rubber comprising from 70 to 98% by weight of residues of an alkyl acrylate having from 2 to 12 carbon atoms, from 1.92 to 27% by weight of residues of a vinyl monomer copolymerizable with the alkyl acrylate and from 0.08 to 3% by weight of residues of a multifunctional vinyl monomer; a graft copolymer (B) composed of a continuous phase comprising from 10 to 90% by weight of residues of an aromatic vinyl monomer, from 10 to 40% by weight of residues of an .alpha.,.beta.

Abstract: A method for flocculating latex particles in a latex is characterized in that a water soluble cationic polymer containing a quaternary ammonium salt in its molecular chain is added as a flocculant to the latex. Also disclosed is a process for producing a thermoplastic resin which comprises flocculating latex particles in a latex material by adding a water soluble cationic polymer containing a quaternary ammonium salt in its molecular chain to the latex, removing freed water from the flocculated latex to obtain a wet cake and then drying the wet cake directly or after the granulation.

Abstract: A method for flocculating latex particles in a latex is characterized in that a water soluble cationic polymer containing a quaternary ammonium salt in its molecular chain is added as a flocculant to the latex also disclosed is a process for producing a thermoplastic resin which comprises flocculating latex particles in a latex material by adding a water soluble cationic polymer containing a quaternary ammonium salt in its molecular chain to the latex, removing freed water from the flocculated latex to obtain a wet cake and then drying the wet cake directly or after the granulation.

Abstract: A heat and impact resistant resin composition which comprises from 10 to 90 parts by weight of a copolymer (A) comprising from 90 to 50% of residues of a vinyl aromatic compound, from 10 to 50% of residues of a maleimide compound and from 0 to 30% of residues of a vinyl compound copolymerizable therewith; from 0 to 50 parts by weight a copolymer (B) comprising from 90 to 40% of residues of a vinyl aromatic compound and from 10 to 60% of residues of an unsaturated nitrile compound; from 5 to 89 parts by weight of a graft copolymer (C) comprising from 25 to 70% by weight of particles of a rubber having a glass transition temperature of not higher than 0.degree. C. and an average particle size of from 0.1 to 0.5 .mu.

Abstract: A heat resistant resin composition comprising from 10 to 90% by weight of a copolymer A and from 90 to 10% by weight of a copolymer B, in which the copolymer A is composed of an N-aromatic maleimide monomer residue, a maleimide monomer residue, a vinyl aromatic monomer residue and, optionally other vinyl monomer residue, the total content of the N-aromatic maleimide monomer residue and the maleimide monomer residue being from 10 to 45%, the content of the N-aromatic maleimide monomer residue being greater than the content of the maleimide monomer residue, the content of the vinyl aromatic monomer residue being from 90 to 55% and the content of said other vinyl monomer residue being from 0 to 20%, and the copolymer B is composed of a vinyl cyanide monomer residue, a vinyl aromatic monomer residue and, optionally other vinyl monomer residue, the content of the vinyl cyanide monomer residue being from 20 to 55%, the content of the vinyl aromatic monomer residue being from 80 to 45% and the content of said other

Abstract: A plastic interlayer for lamination comprises a plastic film or sheet, at least one surface of which has a structure having many separated projections and continuous roots in the same level.

Abstract: A thermoplastic resin composition comprises 100 parts by weight of metal foil fragments, from 1 to 10 parts by weight of a first polymer covering the surfaces of the metal foil fragments and obtained by polymerizing at least one of monomers selected from the group consisting of acrylic acid, methacrylic acid, an alkylacrylate, an aminoalkylacrylate, an alkylmethacrylate and an aminoalkylmethacrylate in the presence of the metal foil fragments, and from 5 to 33 parts by weight of a second polymer obtained by polymerizing a mixture of an aromatic vinyl monomer and a monomer copolymerizable with the atomatic vinyl monomer. Also disclosed is a process for preparing the thermoplastic resin composition containing metal foil fragments.

Abstract: A food consisting of a solid food material and a liquid material is sterilized within a short time by placing a solid food material into a container capable of transmitting microwaves; feeding a hot liquid material having a higher temperature than that of the solid food material into the container; hermetically sealing the container, and; applying microwaves to the container to sterilize the content in the sealed container.

Abstract: A heat resistant resin composition comprises 10 to 90 wt. % of a copolymer (A) having 15 to 50 wt. parts of N-phenylmaleimide component, 85 to 40 wt. parts of a vinyl aromatic monomer component and 0 to 30 wt. parts of a vinyl comonomer component to be 100 wt. parts in total; and 90 to 10 wt. % of a copolymer (B) having 15 to 30 wt. parts of a cyanovinyl monomer component, 85 to 65 wt. parts of a vinyl aromatic monomer component and 0 to 30 wt. parts of a vinyl comonomer component.

Abstract: An epitaxial layer of a photoelectric element, which is formed on a substrate and in which a p-n junction is formed has a high carrier density region adjacent the substrate, so that the provision of ohmic electrodes thereon is facilitated.

Abstract: A method of manufacturing an electroluminescent compound semiconductor wafer having epitaxial film layers each composed of a semiconductor containing components belonging to III and V groups of the periodic table one of which layers has the mixed crystal ratio of the components being constant comprises the step of at least reducing the supply of at least one of the III and V components at least once during the formation of the one layer.

Abstract: A crosslinkable vinyl chloride resin composition, comprising; a vinyl chloride copolymer containing hydroxyl groups or a substituent convertible to hydroxyl groups in the copolymer, a polyisocyanate compound as a crosslinking agent and a heat stabilizer composed principally of a salt of a metal of Group IIa in the Periodic Table.