Abstract: There is disclosed a resin composition for powder coatings, which comprises a blend of two acrylic resins obtained by polymerizing a prescribed amount of monomer component (a-1) represented by formula (I) and a prescribed amount of another monomer component (a-2), respectively, and having different polymerization degrees represented by viscosities at 140.degree. C. and a polybasic acid compound in 1.5 to 0.5 equivalent ratio of the glycidyl groups in said acrylic resins to the acid groups in the polybasic acid compound. ##STR1## wherein R.sub.1 and R.sub.2 each represent a hydrogen atom or a lower alkyl group. The resin composition for powder coatings that can form a coating film having a mat smooth appearance and being excellent in flexibility as shown by Du Pont impact resistance and the Ericksen test as well as being excellent in nail scratch resistance.

Abstract: The connector of the present invention has a housing formed from a polyamide resin composition which comprises 65-85% by weight of a specific polyamide (A), and 5-20% by weight of a graft-modified .alpha.-olefin random copolymer and/or graft-modified vinyl aromatic hydrocarbon/conjugated diene copolymer or a hydrogenation product thereof (B), and 0.1-1.0% by weight, based on 100% by weight of the total of the aromatic polyamide (A) and graft-modified copolymer (B), of a polyethylene wax or a metallic salt of an aliphatic carboxylic acid having 26-32 carbon atoms (C), and further, optionally, an antioxidant (D).An object of the present invention is to provide a connector which is free from a decrease in characteristics such as toughness by heating, and, in particular, can be formed with excellent moldability, and is light weight.

Abstract: An insulating adhesive tape which comprises a base supporting film and an adhesive layer formed on at least one surface thereof, said adhesive layer being formed of a thermoplastic polymer comprising a thermoplastic polyimide, wherein said thermoplastic polymer has a glass transition temperature ranging from 180.degree. C. to 280.degree. C. and an elastic modulus ranging from 10.sup.10 dyne/cm.sup.2 to 10.sup.11 dyne/cm.sup.2 at 25.degree. C., said modulus including a value ranging from 10.sup.2 dyne/cm.sup.2 to 10.sup.9 dyne/cm.sup.2 at a temperature between 250.degree. C. and 300.degree. C.

Abstract: A breathable, hydrolyzable, porous film having long-term stability in mechanical properties which is obtained by the process comprising adding from 40 to 250 parts by weight of a finely-powdered filler having an average particle size of from 0.3 to 4 .mu.m to 100 parts by weight of a polylactic acid-based resin composition comprising from 80 to 95% by weight of polylactic acid or a lactic acid-hydroxycarboxylic acid copolymer and from 5 to 20% by weight of a plasticizer comprising a citric acid ester, melting and film-forming the resultant mixture, and successively stretching the thus-obtained film 1.1 times or more at least in the direction of the axis; and which is consequently useful as a material for leakproof films of sanitary materials such as a paper diaper and packaging materials, and does not accumulate as wastes because of hydrolyzability in the natural environment in the case of being abandoned after use.

Abstract: Heterocyclic compounds useful as anticancer drug potentiaters having a potentiating effect on the incorporation of anticancer drugs into cancer cells are disclosed, the compounds each synthesized by, for example, reacting a epoxy compound obtained by reacting a heterocyclic compound with an epihalogenohydrin, with an amine derivative.

Abstract: A container with a suspension grip can be used as an infusion solution container for drip transfusion of blood or drip infusion of a solution. A method of manufacturing the container comprises making the bottom of the preform relatively thick and providing a blow metal mold on the bottom of its cavity having the shape of a container to be produced from the preform with a resin receptacle for forming a container grip so that at least part of the thick bottom of the preform enters the resin receptacle for grip formation at the time of blow molding to form a container grip.

Abstract: A flocked member having a base and a flock and characterized in that the flock is formed by filaments comprising a resin composition (E) or yarns comprising the filament, the resin composition (E) comprising per 100 parts by weight thereof:(1) 90 to 2 parts byweight of a modified polyethylene composition (C) in the form of a mixture which includes 90 to 10 wt. % of a ultra-high-molecular-weight polyethylene (A) having an intrisic viscosity (.eta.) of at least 6 dl/g, and 10 to 90 wt. % of a polyethylene (B) having an intrinsic viscosity (.eta.) of 0.1 to 5 dl/g, at least one of the polyethylene (A) and the polyethylene (B) having been modified with at least one modifying monomer sclected from among unsaturated carboxylic acids and derivatives thereof, and(2) 10 to 98 parts by weight of a polyamide (D).

Abstract: Formation of adventitious buds, adventitious embryos and plant bulblets are induced by mechanically making fine openings in plant tissue pieces or callus and introducing calmodulin and/or calcium ions into the plant tissue pieces or callus then culturing in an artificial culture medium.

Abstract: Substantially flat surfaced emulsion particles polymerized vinyl monomer, having a concavity in at least one of the flat surfaces, a diameter D of from 0.1 to 5.0 .mu.m, and a particle diameter thickness d ratio (d/D) of 1.2 to 5.0 prepared by the step of (1) aqueous emulsion polymerizing a first vinyl monomer or mixture of monomers (a) to form vinyl polymer seed particles; and (2) aqueous emulsion polymerizing a second vinyl monomer or mixture of monomers (b) in the presence of the vinyl polymer seed particles and a non-aqueous organic solvent having a surface tention to water at 20.degree. C. of 48 dyne/cm or more, in a weight ratio of monomer (a) to monomer (b) of 0.5/99.5 to 50/50; and are useful in high performance recording material, paint compositions and paper coating compositions.

Abstract: A preparation process of aliphatic polyester having a weight average molecular weight of 15,000 or more by conducting a direct polycondensation reaction of an aliphatic polyhydric alcohol or a mixed aliphatic polyhydric alcohol and an aliphatic polybasic acid or a mixed aliphatic polybasic acid, or additionally a hydroxycarboxylic acid or a mixed hydroxycarboxylic acid or an oligomer of the hydroxycarboxylic acid in a reaction mixture containing an organic solvent.The aliphatic polyester thus obtained contains an extremely small amount of impurities, has low color and can exhibit satisfactory strength in the form of films, filaments and other shaped articles.

Abstract: Crystals of 6,6'-dihydroxy-3,3,3',3'-tetramethyl -1,1'-spirobiindane (hereinafter referred to as SPI) are obtained by cooling a phenol solution containing 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane when crystallization is started at a temperature higher than a transition temperature between SPI and an adduct of SPI with phenol. The crystals are washed with an organic solvent or contacted with water and further washed with an organic solvent. When crystallization is started at a temperature less than the transition temperature, adduct crystals of SPI with phenol are obtained from the phenol solution. Phenol is removed from the adduct crystals and the adduct crystals are contacted with water to obtain a hydrate and further the hydrate is washed with an organic solvent.

Abstract: A method for cleaning the interior of a molding machine having a residual thermoplastic resin after molding comprises the step of cleaning the interior of a molding machine with a cleaning composition which comprises:(A) 100 parts by weight of a thermoplastic resin;(B) 2 to 100 parts by weight of a polyalkylene oxide glycol having a viscosity-average molecular weight ranging from 10,000 to 1,500,000; and(C) 0.5 to 5 parts by weight, per 100 parts by weight of the sum of the foregoing components (A) and (B), of an alkylsulfate represented by the following general formula (I):R.sub.1 --O--SO.sub.3 M (I)wherein R.sub.1 represents an alkyl group having 8 to 20 carbon atoms and M represents an ion selected from the group consisting of K, Na and NH.sub.4 or a fatty acid salt represented by the following general formula (II):R.sub.2 COOX (II)wherein R.sub.2 represents an alkyl group having 7 to 23 carbon atoms and X represents an ion selected from the group consisting of K, Na, Ca, Mg and Zn.

Abstract: This invention provides a tetrafluoroethylene (TFE) copolymer resin powder composition capable, upon rotational lining, of generating a corrosion-resistant, nonstick film, which is a thick film on a metal or a like substrate, essentially free of gas bubbles, and excellent in adhesion and peel resistance. The TFE-copolymer resin powder composition comprises granules which comprise particles of a TFE/perfluoro(alkyl vinyl ether) copolymer (PFA), polyphenylene sulfide (PPS) particles having an average particle size of 0.3-50 .mu.m, and a heat resistant filler. This invention also provides a process for manufacturing the TFE copolymer resin powder composition comprising either (1) granulating a mixture of PFA particles, PPS and a heat resistant filler in the presence of water and an organic liquid, or (2) mixing PFA, PPS, and a heat-resistant filler, compression-molding, and pulverizing.

Abstract: The present invention relates to a novel polyol obtained by using a specified polyhydric alcohol, polyoxyalkylene polyol, aliphatic amine and/or alkamlamine as a raw material and adding an organic polycarboxylic acid or its anhydride and an alkylene oxide; a polyurethane resin prepared from said novel polyol and an organic polyisocyanate; a rigid polyurethane foam prepared by using a hydrochlorofluorocarbon or hydrofluorocarbon foaming agent which has very low public hazards; and a composite utilizing thereof.The production of rigid polyurethane foam by using the polyol of the invention can be carried out in good operation efficiency and low public hazards. Additionally, properties of the foam thus obtained is equivalent to those of rigid polyurethane foams obtained by using conventional chlorofluorocarbons. Consequently, the rigid polyurethane foam of the invention is very useful for insulation materials and structural insulation materials.

Abstract: Herein disclosed is a method for simultaneously preparing a highly pure bisphenol F and/or a bisphenol F for general use and a novolak phenol resin and/or a high molecular weight novolak phenol resin comprising the steps of:(1) a preparation step comprising reacting phenol with formaldehyde in the presence of an acid catalyst and removing the acid catalyst, water and the unreacted phenol from the resulting reaction product to give a crude bisphenol F;(2) a distillation step comprising distilling a part of the crude bisphenol F to give a highly pure bisphenol F, as a distillate, having a binuclear moiety-content of not less than 95% by weight and a novolak phenol resin, as a still-bottom product, having a binuclear moiety-content of not more than 15% by area;(3) a step for mixing the highly pure bisphenol F with the remaining crude bisphenol F to give a bisphenol F for general use; and(4) a step for polymerizing the novolak phenol resin with formaldehyde in the presence of an acid catalyst to give a high molec

Abstract: The cycloolefin resin compositions of the present invention comprise a thermoplastic resin containing an olefin polymer having an alicyclic structure, specific stabilizers selected from phenolic stabilizers, organic thioether stabilizers, organic phosphite stabilizers, UV-ray absorbers and hindered amine stabilizers. The cycloolefin resin compositions show excellent thermal aging resistance and weathering resistance by the use of specific stabilizers, and therefore they are favorably used for forming optical instrument parts. Furthermore, the thermoplastic resin may be prepared from an olefin polymer having an alicyclic structure and a flexible polymer or flexible polymers. The incorporation of the flexible polymer especially improves the mechanical strength of the resultant products, and therefore the resin compositions are favorably used for machine parts, electronic parts, automobile parts, etc.

Abstract: A polypropylene resin composition which comprises (A) 100 parts by weight of polypropylene, (B) 20-50 parts by weight of at least one elastomer selected from an ethylenic elastomer, an hydrogenated styrene-butadiene copolymer and a hydrogenated styrene-isoprene block copolymer, (C) 0.3.about.20 parts by weight of polycarbonatediol having a skeleton of aliphatic carbonate with both terminals being a hydroxyl group and (D) 0.about.50 parts by weight of an inorganic filler. The resin composition can provide a molded article having a good adhesive property to a film applied thereon without pretreatment by a halogen-containing solvent.

Abstract: A steam generator for a steam bath for generating steam from hot water supplied thereto. The steam generator for a steam bath has a closed main part equipped with a hot-water supply port, an air inlet, a discharge port and a steam outlet. Hot water received from the hot-water supply port is distributed in the main part so as to contact with air coming through the air inlet, and the thus generated steam is discharged through the steam outlet. Warm water formed as a result of steam generation is discharged from the discharge port.

Abstract: A laminated transparent plastic material comprises a transparent resin material having a total visible light transmittance of at least 85% and a high hardness transparent resin layer of at least 0.2 mm thick having a pencil hardness of at least 4H, Rockwell M scale hardness of at least 100, and a total visible light transmittance of at least 85% overlying the surface of the transparent resin material, the laminated transparent plastic material having a bending modulus of elasticity of at least 350 kgf/mm.sup.2.A polymerizable monomer has the formula, ##STR1## where R.sub.5 and R.sub.6 are similar or dissimilar and are selected from group consisting of hydrogen and methyl, k is an integer of 2-10, and the isopropenyl substituent on the aromatic ring is in the p-position or m-position.

Abstract: A method and apparatus for nondestructively detecting a flaw such as a hairline crack or defect within a conductive object to be inspected. Surface flaws can be distinguished from deep flaws. The pulse duration of the pulse voltage induced in the secondary coil of a sensor is measured at two separate time instances. At one time instance, the pulse duration is affected by variations in the distance between the sensor and the object but is not affected by the flaw. At the other time instance the pulse duration is affected by said variations and also by the flaw. The effect of said variations is cancelled, using these two measured pulse durations. Only a signal correctly indicating the flaw is extracted to detect the presence of the flaw.