Abstract: Disclosed is an inorganic porous substance-containing styrenic resin composition comprising 100 parts by weight of a styrenic resin and from 0.5 to 30 parts by weight of an inorganic porous substance. The composition is formed into packaging materials in the form of film, tray, bag or other containers, and these have an excellent freshness-keeping effect for packaging plants, especially vegetables and fruits. The effect for keeping the taste and flavor of vegetables and fruits is remarkable, and the composition of the invention is useful as a packaging material.

Abstract: A heat-resistant polyester having a structure represented by the formula (I):--X--Y).sub.m X--Z).sub.n (I)wherein X represents the structure (A): ##STR1## wherein R represents hydrogen, methyl, or ethyl, Y represents the structure (B): ##STR2## Z represents the structure (C):--OC(CH.sub.2).sub.l CO-- (C)wherein l is an integer of 2 to 6, and m and n are independent repeating numbers, the mole ratio of Y component and Z component in the formula (I) being 1/99 to 99/1 and said polyester having an inherent viscosity (.eta..sub.inh) of at least 0.6 dl/g as determined at a temperature of 30.degree. C. in a solution of 0.5 g of the polyester in 100 ml of a mixture of 60% by weight of phenol and 40% by weight of 1,1,2,2-tetrachloroethane.

Abstract: A heat-resistant polyamide having a repeating unit represented by the formula (I):--X--NH--Y--NH--(I)wherein X represents the structure (A): ##STR1## or the structure (A) and the structure (B) --C.sub.m H.sub.2m -- wherein R represents hydrogen, methyl, or ethyl and m is an integer of 2 to 8; and Y represents the structure (C) ##STR2## and the structure (D) --CO--C.sub.n H.sub.2n --CO-- wherein n is 2 to 6, provided that Y may be the structure (C) when X is the structures (A) and (B), said polyamide having an inherent viscosity (.eta..sub.inh) of at least 0.25 dl/g as determined at a temperature of 30.degree. C. in a solution of 0.5 g of the polyamide in 100 ml of dimethylacetamide.

Abstract: Styrene polymer and copolymer compositions containing both glycerin fatty acid monoester-alkylene oxide adducts and glycerin fatty acid monoesters as antistatic agents produce prolonged antistatic effects unaffected by water washing, showing a resistivity of 10.sup.9 -10.sup.10 .OMEGA., without losing the transparency and mechanical strengths inherent in styrene polymers and copolymers.

Abstract: In the production of a graphite intercalation compound in which the intercalant is a metal chloride, the reaction is carried out in the presence of a second metal chloride of a relatively low boiling point to effect a notable reduction in the reaction time. In the production of a metal chloride intercalation compound which normally requires an atmosphere of chlorine, the addition of the second metal chloride permits the reaction to proceed in the absence of chlorine gas.

Abstract: A heat-sensitive recording material contains, in its heat-sensitive, color-developing layer comprising a leuco dye and an organic acid that reacts with said leuco dye to develop color upon heating, a hydrocarbon compound melting at a temperature in the range from 50.degree. C. to 200.degree. C. and selected from benzylbiphenyls, alkyl-substituted benzylbiphenyls, hydrogenated benzylbiphenyls, hydrogenated alkyl-substituted benzylbiphenyls, hydrogenated terphenyls and hydrogenated alkyl-substituted terphenyls. With its quick thermal response, this material is suitable for high-speed recording.

Abstract: A process for the production of decahydroisoquinoline is disclosed which comprises hydrogenating isoquinoline or partially hydrogenated isoquinoline in the presence of a ruthenium catalyst at a temperature of 110.degree. C. to 230.degree. C. under a hydrogen pressure of at least 10 kg/cm.sup.2 .multidot.G.

Abstract: A mesophase pitch suitable for carbon products, particularly for carbon fibers, which has a mesophase content of at least 40%, preferably at least 60%, and a larger mesophase domain, is produced by adding at least one part by weight of at least one of an alcohol and a phenol to 100 parts by weight of heavy bitumens, subjecting the resulting mixture to pretreatment by heating at least at 250.degree. C., and then subjecting the pretreated mixture to heat treatment until mesophases are formed.

Abstract: A polyamide resin composition which comprises 20 to 80 wt % of polyamide resin and 80 to 20 wt % of inorganic fibers, 85 to 15 wt % of said inorganic fiber being glass fiber and remaining 15 to 85 wt % being ground mineral fiber having an aspect ratio of 5 to 100. The composition has high strength and high modulus of elasticity and is suitable for molding. The composition provides moldings having good surfaces.

Abstract: Various resin products having beautiful pearl-like pattern or luster and excellent mechanical strength such as impact strength and hinging properties are produced by molding a mixture of styrene-butadiene block copolymer containing 10 to 35 wt % butadiene and 65 to 90 wt % styrene, showing resinous properties, and having a specific block form and crystalline polypropylene (content of the former copolymer: 25 to 95 wt %).

Abstract: A method for the manufacture of phthalic anhydride by the catalytic oxidation of naphthelene or ortho-xylene which comprises contacting a mixed gas consisting of naphthalene or ortho-xylene and a molecular oxygen-containing gas with a catalyst bed comprising a first catalyst packed on the upstream side of the flow of mixed gas and a second catalyst packed on the down-stream side of the flow, wherein the first catalyst has carried on a nonporous inactive carrier a catalytically active component composed of 67 to 90% by weight of titanium dioxide, 9 to 30% by weight of vanadium pentoxide and 0.7 to 3% by weight of a rubidium compound (calculated as Rb.sub.2 SO.sub.4), and the second catalyst has carried on the nonporous inactive carrier a catalytically active component composed of 67 to 94% by weight of titanium dioxide, 5 to 30% by weight of vanadium pentoxide and at least one member selected from the group consisting of 0.1 to 1% by weight of a tin compound (calculated as SnO.sub.2) and 0.

Abstract: The disclosure relates to a composition suitable for use in mechanical power transmission devices. It has as its principal component a hydrocarbon oil which has from 19 to 30 carbon atoms, inclusive, and three six-membered carbocyclic rings and consists of a mixture of compounds having the following formula: ##STR1## wherein R.sup.1 is a divalent straight or branched chain radical C.sub.y H.sub.2y where y is an integer of 1 through 3; R.sup.2 is a straight chain radical C.sub.z H.sub.2z where z is an integer of 1 through 3; R.sup.3, R.sup.4, and R.sup.

Abstract: A method for treating a water-containing waste oil comprising oils, water and solid constituents and forming a water-in-oil emulsion, which comprises adding to the water-containing waste oil having an aromatic oil ratio A as represented by the following formula: ##EQU1## at least 1% by weight, on the basis of the weight of the water-containing waste oil, of a treating oil having an aromatic oil ratio B(.vertline.A-B.vertline.>0.5 and excluding 0.4.ltoreq.B.ltoreq.0.6) thereby to separate the oil content.

Abstract: Mould assembly for foam moulding of plastic materials, which comprises stationary and movable dies and an auxiliary die plate device between the stationary and movable dies. A gas passage is formed for introducing pressurized inert gas into the mould cavity. The auxiliary die device comprises separated inner and outer auxiliary dies both being spring biased toward the stationary die. O-ring seals are disposed between the opposite surfaces of the outer auxiliary die and the stationary and movable dies.