Abstract: The present invention relates to a diamond-coated member characterized by superposing an acicular diamond layer, an intermediate layer formed by a metal belonging to either of the group IIIb, IVa, Va or VIa of the periodic table or by a compound containing the said metal, Si or B, and a non-acicular diamond layer on the surface of a base material and to a process for the preparation of a diamond-coated member characterized in that a diamond layer is formed on the surface of a base material by vapor phase synthesis method; the resulting diamond layer is converted into acicular diamond by exposing the resulting diamond layer to a gas obtainable by exciting an oxygen-containing etching gas; an intermediate layer comprising a metal belonging to either of the group IIIb, IVa, Va or VIa of the periodic table or by a compound containing the said metal, Si or B is formed on the resulting acicular diamond; and the resulting intermediate layer is exposed to a gas obtainable by exciting a raw material gas containing a c

Abstract: A polyarylene sulfide resin composition contains 30% to 75% by weight of a polyarylene sulfide resin (A), 15% to 70% by weight of a fiber reinforcement (B) containing silic acid as a major component and having an average fiber diameter of 15 .mu.m or shorter and an average fiber length of 300 .mu.m or longer, and 1% to 25% by weight of a fiber reinforcement (C) containing Al.sub.2 O.sub.3 and SiO.sub.2 as major components in a ratio in weight of Al.sub.2 O.sub.3 to SiO.sub.2 ranging from 0.8 to 1 to 1.3 to 1 and having an average fiber diameter of 7 .mu.m or shorter and an average fiber length of 150 .mu.m or shorter. The composition is remarkable as molding material and a molded article resulting from the composition offers excellent mechanical strength and characteristics for metal plating. The metal-plated, molded article from the composition is particularly excellent in platability such as plate adhesion and plate gloss as well as short etching time.

Abstract: A process for preparing a polyarylene sulfide involves contacting a sulfur source with a metallic salt of an aliphatic .omega.-hydroxycarboxylic acid and a dihalogen aromatic compound in an organic polar solvent, thereby carrying out polycondensation with stability in a polymerization system in which a water content is large. the polyarylene sulfide prepared has a high degree of whiteness and with a sufficiently high molecular weight. The use of the metallic salt of .omega.-hydroxycarboxylic acid in a particular range can provide a novel polyarylene sulfide.

Abstract: Polyarylene sulfides are produced by polymerizing a dihalogen aromatic compound with an alkali metal hydrosulfide in the presence of a lithium halide in an organic polar solvent. In this polymerization, an alkali metal hydroxide and/or carbonate is added and a branching agent such as a trihalogen aromatic compound or a halogen aromatic nitro compound is used, if desired.The polyarylene sulfides have a high molecular weight and a less salt contents and a high degree of whiteness.

Abstract: A food packaging container having a flanged container body of a laminate sheet which comprises a layer of aluminum foil and at leasat one thermoplastic resin layer joined to one surface of the foil layer. The container body is prepared by deep-drawing the laminate sheet with the resin layer inside. The aluminum foil is 40-200 .mu.m in thickness, 9.0-25.0 kgf/mm.sup.2 in tensile strength, 2.5-9.5 kgf/mm.sup.2 in proof stress, 10 to 40% in elongation and up to 7% in earing ratio. The resin layer comprises a thermoplastic resin 100-500 .mu.m in thicknes, 0.92-1.08 in the ratio of modulus of elasticity in tension in the machine directon (MD) to that in the transverse direction (TD), 0.60-1.40 in the MD/TD ratio of elongation and 0.40-1.60 in the MD/TD ratio of breaking strength.

Abstract: Polyarylene sulfides are prepared by reacting a dihalogen aromatic compound with a sodium hydrosulfide in the presence of an alkali metal aminoalkanoate and a lithium halide in an organic polar solvent. This process can prevent a decomposition of the sodium hydrosulfide during dehydration and produce the polyarylene sulfides in a granular form in high yields and with high efficiency.The polyarylene sulfides obtainable by this process are high in molecular weight and degree of whiteness and low in a content of salts remaining therein. Furthermore, the polyarylene sulfides are in the granular form so that they can be handled with ease because of their readily separability and washability.

Abstract: The present invention relates to a durable pattern forming material having a protective film comprising a radiation cured product of a curable compound, comprising a phosphazene of the formula:--{NP(x) (Y)}.sub.n --wherein at least one of x and y is a polymerizable group and n is at least 3, superior in mechanical, optical and chemical properties which is characterized in that a cured protective film of a curable compound is formed on a photo mask or lith film on which a pattern of desired shape has been provided. This pattern forming material can be suitably used for formation of pattern in production of IC, printed circuit and hybrid IC.

Abstract: Provided herein is a coated resin molded-article which comprises a polyester resin substrate and a cured coating formed thereon which contains a curable phosphazene compound. The molded article will find use as film, sheet, and container which have improved abrasion resistance, weather resistance, heat resistance, heat shock resistance, hot water resistance, moisture resistance, alkali resistance, impact resistance, cloud resistance, transparency, oil resistance, surface gloss, and air barrier properties, while keeping the good properties of the resin.

Abstract: Disclosed is a glass fiber reinforced polyolefin resin composition comprising 15-80% by weight of polypropylene, 20-60% by weight of polybutene-1 and 5-60% by weight of glass fiber. This resin composition is excellent in the balance of impact strength, stiffness, heat distortion temperature, surface hardness and processability. When this composition is molded, the molded products have no surface roughness and no color shade and have good appearance. The properties are further improved when a modified polyolefin alone or together with a crystal nucleating agent are added.

Abstract: The present invention is directed to a method of producing a sintered hard metal having a diamond film wherein a gas that is obtained by activating a raw material gas containing 2 to 60 mol % of carbon monoxide and hydrogen gas is brought in contact with a sintered hard metal to form a diamond film, thereby a diamond film can be formed on said sintered hard metal with the adhesion of the diamond excellent.

Abstract: The present invention provides an injection molded food container which is produced by injection molding a polyarylene sulfide resin composition containing 20-70% by weight of glass fiber or glass fiber and other inorganic filler and is excellent in heat resistance, oil resistance and mechanical strength and is suitable as a food container used in microwave oven and convection oven having a heater.The injection molded food container can be manufactured by injection molding a polyarylene sulfide resin composition containing 20-70% by weight of glass fiber or glass fiber and other inorganic filler, using metal mold of which surface roughness is not greater than 5 .mu.m, under condition of mold temperature 130.degree.-180.degree. C.

Abstract: A thermoplastic resin composition which comprises 30 to 99 wt % of a thermoplastic resin and 1 to 70 wt % of granulated fiber formed by granulating inorganic fibers having an average fiber diameter of 0.1 to 1.0 .mu.m, an aspect ratio of 50 to 300, and an oil absorption of 400 ml/100 g and above, said granulated fiber having an average diameter of 0.5 to 5 mm and a bulk density of 0.15 to 0.4.A process for producing a thermoplastic resin composition which comprises mixing in a mixer 30 to 99 wt % of a thermoplastic resin and 1 to 70 wt % of granulated fiber formed by granulating inorganic fibers having an average fiber diameter of 0.1 to 1.0 .mu.m, an aspect ratio of 50 to 300, and an oil absorption of 400 ml/100 g and above, said granulated fiber having an average diameter of 0.5 to 5 mm and a bulk density of 0.15 to 0.4.

Abstract: A polyolefin composition is disclosed, which comprises a polyolefin and an inorganic filler, wherein the polyolefin composition comprising (A) 75 to 97% by weight of a polyolefin component comprising (a) 90-65 parts by weight of a polymer composition comprising a crystalline polypropylene component and an ethylene-propylene random copolymer component and having an ethylene content of 7% by weight or less and/or a propylene homopolymer and (b) 10 to 35 parts by weight of a polyethylene having a melt index of not lower than 10 g/10 min., said melt index being from 1.0 to 50 times that of the polymer (a), and (B) 25 to 3% by weight of a fibrous inorganic filler having an average fiber diameter of 0.1 to 0.8 micrometer and an aspect ratio of 20 to 60.The polyolefin composition is capable of providing, upon molding, articles having good surface appearance, in particular glossiness and improved mechanical strengths with less warping and deformation.

Abstract: The present invention provides a diamond coated sintered body characterized by having a diamond film formed by a gas phase synthesis method on the surface of a sintered body obtained from a mixture of tungsten carbide and at least one compound selected from the group consisting of carbide and nitride of silicon or boron and, if necessary, additionally at least one compound selected from the group consisting of carbide, oxide, nitride, carbonitride, carbonate, boride and organic compound of at least one element selected from the group consisting of metals and rare earth elements belonging to Groups Ia, IIa, IIIa, IVa, Va, IIIb and IVb of the Mendelejeff's periodic table.

Abstract: A method of producing a polyolefin. An olefin is polymerized in the presence of a catalyst containing (A) a catalyst component containing magnesium, titanium, halogen and an electron donor, (B) an organoaluminum compound and (C) an external electron donor which is an ether compound (C.sup.1) of the formula [1a]: ##STR1## or formula [1b]: ##STR2## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.7 are saturated or unsaturated aliphatic hydrocarbyl group having 1 to 7 carbon atoms; R.sup.3 and R.sup.6 are a hydrogen atom or a saturated or unsaturated aliphatic hydrocarbyl group having 1 to 7 carbons and R.sup.5 is a divalent aliphatic hydrocarbyl group having 1 to 7 carbon atoms. The catalyst used in the polymerization may also contain a carboxylate, organosilicon compound and/or an azo compound.

Abstract: The present invention relates to a butene-1 copolymer composition which has excellent heat sealing properties, mechanical characteristics, moldability, and transparency without lowering its surface characteristics, and is characterized by containing 75 to 99.5% by weight of a butene-1 copolymer comprising butene-1 unit and .alpha.-olefine having a carbon number of 2 to 3, and 25 to 0.5% by weight of a propylene polymer, the said butene-1 copolymer has an .alpha.-olefine unit content of 1 to 35 mol %, intrinsic viscosity of 0.9 to 7.2 dl/g, weight-average molecular weight/number-average molecular weight of 4 to 15, and the content of the boiling diethyl ether soluble component is 3 to 15% by weight of the copolymer.

Abstract: A laminated material is prepared in which a resin composition layer (A) containing a thermoplastic resin and an inorganic filler in a scaly or non-scaly form in an amount from 20% to 80% by weight of the total weight of the thermoplastic resin and the filler interposes a resin composition layer (B) containing a thermoplastic resin and an inorganic filler in an amount from 30% to 70% by weight of the weight of the inorganic filler contained in the resin composition layer (A), the filler being in a scally form when the filler in the layer (A) is in a scaly form or being in a non-scaly form when the filler in the layer (A) is in a non-scaly form with a thermoplastic resin layer.

Abstract: The present invention relates to an olefin copolymer composition, which olefin copolymer composition contains (A) 25 to 97 wt. % of a propylene copolymer, and (B) 75 to 3 wt. % of a butene-1 copolymer having a content of .alpha.-olefin unit with 2 to 8 carbon atoms of 1 to 35 mol %, an intrinsic viscosity of 0.9 to 7.2 dl/g measured in decalin heated to 150.degree. C., a value of weight-average molecular weight/number-average molecular weight of 4 to 15, a temperature difference of 2.degree. to 40.degree. C. between the highest value and the lowest value of the melting point measured by the differential scanning calorimetric analysis, and a .alpha.-olefin block property of 0.015 or lower measured by the nuclear magnetic resonance spectral analysis, can provide molded items excellent, for example, in heat-sealing properties, transparency, blocking resistance, and surface gloss, and is good in processability.

Abstract: A plastic optical transmittable fiber having improved optical transmission loss and flexibility and good heat resistance. The fiber comprises a cladding of a copolymer comprising 70 to 99.5 mole % of 4-methyl pentene-1 units and 30 to 0.5 mole % of units of an .alpha.-olefin of 2-24 carbon atoms, the refractive index of the core being higher than that of the cladding by at least 0.01.

Abstract: A process for preparing a substantially straight-chain polyarylene thioether by polymerizing a diphenyldisulfide of the formula ##STR1## in the presence of a lewis acid catalyst at temperatures of between -20.degree. C. and 50.degree. C.