Abstract:
This invention relates to a production method for a fine granulate having a grain size of not greater than 0.2 mm which includes a granulation step of spraying a binder or a liquid containing the binder and a surfactant to the surface of a fine powdery material having a mean particle size of not greater than 10 mu m under stirring, rolling or fluidization, and to the resulting fine granulate thus obtained. In the field of medicines, the present invention makes it possible to produce pharmaceuticals which must keep high contents of slight soluble and slight absorbable medicine components and a basis. In the field of foodstuffs and fertilizers, too, the present invention can provide fine granulate having high usability as powder.
Abstract:
An in-mold expansion molding product (11) of polypropylene resin having a skin (8) is produced by clamping a mold A (13) lined with a skinning material (8) and a mold B (14) together to form a mold cavity (7), filling the cavity (7) with pre-expanded polypropylene resin particles, feeding steam into the cavity through a steam hole (4) of the mold B (14) to preheat the pre-expanded particles at a temperature lower than a temperature at which the particles fuse with one another, steaming the pre-expanded particles thus treated, and finally heating the steamed pre-expanded particles from the side of the mold B (14) above a temperature at which the particles fuse with one another. The final heating may be effected, if necessary, from the side of the mold A (13).
Abstract:
A thermoplastic resin composition which comprises: (A) 1 to 100 parts by weight of a modified polyolefin having one glycidylic structural unit represented by general formula (I) wherein Ar represents a C6 to C23 aromatic hydrocarbon group having at least one glycidyloxy group and R represents hydrogen or methyl, for every 2 to 1,000 repeating olefin units, and (B) 100 parts by weight of a polyester. It gives a molded article with excellent mechanical properties such as impact resistance and good surface properties, because a strong affinity exists at the boundary between the polyolefin and the polyester.
Abstract:
An immobilized enzyme preparation obtained by contacting an enzyme which hydrolyzes an N-carbamyl-D-α-amino acid into a D-α-amino acid with a solid carrier in the presence of an antioxidant; and a process for producing a D-α-amino acid by contacting the above preparation with an N-carbamyl-D-α-amino acid.
Abstract:
This invention intends to make it possible to form a surface-hardened continuous layer evenly and to a specified thickness on a part or the whole of the surface of the foamed synthetic resin product during the internal foam molding process without greatly changing the ordinary foam molding process. A synthetic resin granular material having foaming nature is brought into contact with a heated part of the product surface so as to be melted and a molten resin layer is formed on that portion of the surface of the molded product corresponding to that portion of the surface of the metallic mold for internal foaming molding heated to a temperature higher than the melting point of said resin material, and then said molten resin layer is hardened to compose a foamed synthetic resin molded product having a continuous surface-hardened layer formed during the process of internal foam molding.
Abstract:
The invention relates to a gene which pertains to D-N-carbamoyl-α-amino acid amidohydrolase which converts D-N-carbamoyl-α-amino acid into D-α-amino acid; a recombinant plasmid comprising a DNA fragment containing the gene integrated into a vector; a microorganism belonging to the genus Escherichia, Pseudomonas, Flavobacterium, Bacillus, Serratia, Corynebacterium or Brevibacterium and transformed by integrating the recombinant plasmid therein; a process for producing D-N-carbamoyl-α-amino acid amidohydrolase by culturing the transformed microorganism; D-N-carbamoyl-α-amino acid amidohydrolase produced thereby; and a process for producing D-α-amino acid by the action of the amidohydrolase. The amidohydrolase can be used also in a state immobilized on a carrier.
Abstract:
A polyimide represented by general formula (I), which has excellent processability, high mechanical strength such as bending strength and impact resistance, high thermal resistance, and excellent solubility and flexibility, wherein Ar2 represents a tetravalent organic group, Ar1 represents a divalent organic group, Ar3 represents a monovalent organic group, and said Ar2, Ar1 and Ar3 may be the same or different from each other; n and m represent comonomer ratios and each an integer of 1 to 30; X represents CH3, CH3CH2, CH3O, Cl, Br, F, CN, NO2, CF3, CF3CF2, CF3O or Ph and a plurality of X groups may be the same or different from each other; and y represents an integer of 1 to 4.
Abstract:
A modified polyolefin polymer having one glycidylated structural unit of general formula (I) (wherein Ar represents an aromatic C6 to C23 hydrocarbon group having at least one glycidyloxy group and R represents hydrogen or methyl) for 2 to 1,000 olefinic repeating units. This polymer is capable of blending or alloying, because it is excellent in not only mechanical properties, heat and oil resistances, dyeability, adhesion and electrostatic chargeability, but also compatibility with other resins.
Abstract:
A method of vacuum precooling articles to be precooled such as vegetables and fruits and maintaining the precooled state for an extended time and insulating container used for the method, which are characterized in that precooling operation and maintaining of the precooled state for a long period of time, which have heretofore been considered impossible, become possible in a state where the articles to be precooled are kept in a closed container, portions being in communication with the outside and having given lengths are formed in suitable positions of the container when closed, so that reliability in keeping the freshness can be increased, transportation over a long distance and for a long period of time can be ensured and the articles can be kept in good conditions for a long period of time, without impairing the precooling effect of the articles to be precooled such as the vegetables and fruits.
Abstract:
A method of forming films by glow discharge decomposition, characterized in that one or a plurality of rows of electrode pairs, each of which rows consists of a plurality of linearly-arranged high-frequency electrode pairs, are placed in order, substrates being arranged on both sides of the electrode pair arrays so that the former are substantially parallel to the latter. According to this method, the possibility of a film being damaged by plasma can be minimized, and the shield on the rear sides of RF electrodes can be omitted. Moreover, this method enables the formation of a film of a large area.