Abstract: A preparation process of N,N′-dialkylalkanediamine by reacting dihaloalkane with lower alkylamine characterized by carrying out the reaction with controlling the residual amount in the reaction system of haloalkaneamine intermediate represented by the formula (4): wherein R is a lower alkyl group, R1 and R2 are a hydrogen atom or a lower alkyl group, X is a chlorine, bromine or iodine atom, and n is an integer of 2 to 6, and the invention inhibits formation of by-products cyclic dialkyldiamine and trialkylalkanetriamine and can provide desired N,N′-dialkylalkanediamine with a high yield.

Abstract: A compound represented by the formula (1) which is useful as an agricultural fungicide or an intermediate thereof can be obtained by reacting a compound of the general formula (2) with a compound of the general formula (3) in the presence of an acid and reducing the resulting reaction mixture. wherein, each of R1 to R4 and R1a to R4a independently represents a hydrogen atom or an alkyl group, and R represents an alkyl group, alkoxy group, phenyl group or 5-membered or 6-membered heterocyclic group.

Abstract: A defect evaluation apparatus of this invention includes a laser irradiation unit for obliquely irradiating a laser beam onto an object, and an observation unit for observing scattered light from inside the object or a surface of the object. The laser irradiation unit irradiates the laser beam onto the object from a plurality of incident directions around an observation optical axis, and the observation unit receives the scattered light from the object to obtain shape information of a defect in the object or on the surface of the object.

Abstract: The invention provides a process for preparing a solid titanium catalyst component for use in the preparation of an olefin polymerization catalyst, which comprises: (1) a step wherein a suspension is prepared which contains a solid material prepared by contacting a magnesium compound with a first titanium compound and having a polybasic carboxylic acid ester supported thereon; (2) a step wherein the solid material is separated from the suspension; and (3) a step wherein the solid material is contacted with a second titanium compound under heating; wherein while the solid material is separated from the suspension in the step (2) and the solid material is supplied to the step (3), the solid material is maintained at a temperature in the range of 70-130° C.

Abstract: A 5-aminopyrazole-4-carboxylate derivative represented by the formula (1) is prepared by reacting a compound represented by the formula (2) with a hydrazine compound represented by the formula (3) or hydrate, hydrochloride, hydrobromide or sulfate of the same according to the reaction formula (C): wherein R1 is a straight or branched C1 to C4 alkyl group which can be substituted with a halogen atom, R2 is a hydrogen atom, straight or branched C1 to C4 alkyl group or an unsubstituted or substituted phenyl group, and R3 is a straight or branched C1 to C4 alkyl group, and M is an alkali metal. The 5-aminopyrazole-4-carboxylate derivative obtained by the preparation process of the invention is useful for an intermediate of agricultural chemicals and medicines, fungicides in particular.

Abstract: A hot melt adhesive composition exhibiting excellent adhesive strength and which is useful as an adhesive for styrene resins contains (B) tackifier and (C) ethylene/C3-C20 &agr;-olefin/aromatic vinyl compound random copolymer and, in some embodiments also (A) base polymer, such as polyolefin, polar group-containing polymer and aromatic vinyl compound/conjugated diene copolymer. A low molecular weight polyolefin may also be included in all embodiments. The randon copolymer (C) may be prepared by polymerizing the &agr;-olefin and aromatic vinyl compound in the presence of a metallocene containing catalyst. In addition to excellent adhesive strength the hot melt adhesives have improved workability.

Abstract: An animal cell capable of producing an antibody specific to a human growth hormone having a molecular weight of 20,000 (20 k hGH) was prepared from an animal immunized with 20 k hGH. The animal cell was fused with a myeloma cell to produce a monoclonal antibody which specifically reacted to 20 k hGH, but substantially not to 22 k hGH. The monoclonal antibody was useful for immunoassay of 20 k hGH.

Abstract: A polylactic acid-based resin composition composed of a high molecular ingredient (A) comprising polylactic acid (a1) and an aliphatic polyester (B), and a film, particularly an inflation film, prepared from the resin composition. The film comprising the polylactic acid-based resin composition of the invention is biodegradable and excellent in flexibility and resistance to blocking of film and bleeding-out of plasticizer, has no anisotropy in tear strength, and can be suitably used for an agricultural multi-film and garbage bag. When the film of the invention is used for food wrapping, the film prevents fungus growth and contamination of color or odor, and thus can be suitably used.

Abstract: The present invention relates to an internal quality measuring apparatus for measuring an internal quality of an object, and the apparatus has a conveying device, a detecting device, a light projecting device, a light receiving device, an analyzing device and a pseudo-object member interposing device, and the analyzing device compares light received with a pseudo-object member, with reference data preliminarily stored, and correct a result of the analysis, based thereon.

Abstract: Disclosed is a method of injection-molding for epoxy resin moldings wherein an epoxy resin composition is used as starting material, a molding cycle is shortened, a continuous molding operation is possible and a waste portion after curing can be minimized as well as an injection-moldable epoxy resin composition excellent in thermal stability possessing latent-type curing characteristics capable of rapidly promoting curing reaction in a metal mold without being cured in an injection molding machine. The aforesaid method is carried out by charging an epoxy resin composition possessing the latent-type curing characteristics into a mini-sprue metal mold which is composed of a manifold part, a mini-sprue part and an ejector-plate part and wherein a metal mold temperature at the manifold part is so maintained that the epoxy resin composition is molten but curing of the composition is not promoted, and injection-molding the composition.

Abstract: Nickel fine powder comprises nickel and phosphorus dispersed in the nickel in an amount ranging from 0.01 to 2% by weight on the basis of the weight of the nickel and having a particle size of not more than 0.5 &mgr;m. The nickel fine powder can be prepared by a method comprising the step of reducing nickel hydroxide in the presence of phosphorus ions in such an amount that the molar ratio of phosphorus ions to nickel ions falls within the range of from 0.01 to 2.

Abstract: The invention provides a polyorganosiloxane catalyst with both of a sulfonic acid group-containing hydrocarbon group and a mercapto group-containing hydrocarbon group, wherein the total amount of the sulfonic acid group-containing hydrocarbon group and the mercapto group-containing hydrocarbon group is within a range of 0.3 to 2.0 &mgr;mol per unit surface area (1 m2) of the polyorganosiloxane catalyst. The catalyst of the invention is highly active for the reaction to produce bisphenol A from acetone and phenol, with the deterioration of the catalyst under extreme suppression.

Abstract: A fluororesin powder liquid dispersion comprising heat-flowable fluororesin powder, liquid dispersion medium having a surface tension of not more than 45 dyne/cm, and colloidal particles having an average particle size of not more than 1 &mgr;m provides thick corrosion resistant coated films. Preferred colloidal particles for the dispersion are particles of polyether sulfone (PES) which are added in an aqueous dispersion containing an organic solvent and a water-miscible solvent. An aqueous dispersion of PES colloidal particles having an average particle size of not more than 1 &mgr;m is preferably prepared by (1) dissolving PES in an organic solvent capable of solubilizing PES; (2) combining the dissolved PES with a water-miscible solvent which is capable of being dissolved in the organic solvent; and (3) combining water in which there is a dissolved surfactant with the dissolved PES.

Abstract: The adhesive resin composition of this invention comprises (A) 30 to 70 parts by weight of an ethylene/vinyl acetate copolymer, (B) 0 to 50 parts by weight of an ethylene/&agr;-olefin copolymer having an ethylene content of 30 to 95 mole % and a degree of crystallinity by X-ray of not higher than 40%, (C) 0 to 50 parts by weight of a modified ethylene/&agr;-olefin copolymer having an ethylene content of 30 to 95 mole % and a degree of crystallinity by X-ray of not higher than 40%, (D) 0 to 30 parts by weight of modified polyethylene, (E) 1 to 20 parts by weight of a tackifier and (F) 1 to 20 parts by weight of a styrene polymer, characterized in that (B)+(C)=15 to 60 parts by weight, (C)+(D)≧2 parts by weight, and (A)/[(B)+(C)]=0.5 to 3.

Abstract: In a membrane treatment method, raw liquid is supplied to a circulation tank, and circulation liquid is supplied into an inter-membrane passage between filtration membranes disposed within a membrane apparatus, which is disposed separately from the circulation tank. Filtrate is obtained from the circulation liquid within the inter-membrane passages via the filtration membranes, and the circulation liquid is circulated by a circulation pump disposed between the circulation tank and the membrane apparatus, while returning the remaining circulation liquid to the circulation tank. A portion of the circulation liquid overflows from the circulation tank. A membrane treatment apparatus comprises a membrane apparatus, a circulation tank, and a circulation pump. The membrane apparatus includes filtration membranes disposed to form an inter-membrane passage between the filtration membranes. The membrane apparatus takes out filtrate from circulation liquid in the inter-membrane passage.

Abstract: Ethylene/C6-8 alpha-olefin copolymers are characterized by melt tension, flow activation energy and haze. The copolymers have excellent moldability and produce films of excellent transparency and mechanical strength.

Abstract: A composition prepared by adding as the sliding properties improving agent a small amount of ethylene-&agr;-olefin random copolymer having polar groups to engineering plastics including polyacetal, ABS, and polyamide is suitable for the manufacture of gears, rotary shafts and bearings by way of exploiting its molding processibility including excellent mold release properties, and at the same time is capable of enhancing its friction/wear resistance. As the sliding properties improving agent, an oxidation-modified material produced from ethylene-&agr;-olefin random copolymer or a graft-modified material prepared by graft-copolymerizing an ethylenic unsaturated monomer having carboxylic acid group, hydroxyl group or the like with ethylene-&agr;-olefin random copolymer is particularly preferable.

Abstract: The invention has disclosed a trifluoroacetoxylation agent and a preparation process of the agent, which is safe and ease to handle, very useful in industry, and represented by the formula (1); wherein R1 to R4 are a substituted or unsubstituted, saturated or unsaturated alkyl group or a substituted or unsubstituted aryl group and can be the same or different, R1 and R2 or R3 and R4 can bond to form a ring containing a nitrogen atom or a nitrogen atom and other hetero atoms, and R1 and R3 can bond to form a ring containing a nitrogen atom or a nitrogen atom and other hetero atoms.

Abstract: A novel process for producing an optically active amine is provided. The optically active amine is adapted for use as an intermediate in synthesizing physiologically active compounds such as pharmaceuticals and agricultural chemicals, as a functional material such as a liquid crystal, and as a starting material in synthesizing fine chemicals. The process comprises the step of reacting an imine with a hydride reagent in the presence of an optically active metal compound and an alcohol compound and/or carboxylic acid compound.

Abstract: A thermoplastic elastomer based on olefin which can be produced simply by melt-kneading 5-60% by weight of a polyethylene resin (A) together with 40-95% by weight of an ethylene/&agr;-olefin copolymer (B) with optional subsidiary component(s) before the kneaded mass is molded into a formed product, the said elastomer being capable of recycling for reclamation and exhibiting the following characteristics {circle around (1)} to {circle around (3)} namnely, 9≦Y−0.43 X≦27  (1) {circle around (1)} in which X denotes the JIS A-hardness value (a dimensionless value) of the thermoplastic elastomer based on olefin determined according to the prescription of JIS K 6301 and Y represents the permanent compressive strain value (expressed by %) of the thermoplastic elastomer based on olefin determined according to the prescription of JIS K 6301 under a condition of 70° C.