摘要:
Described is a triazole derivative represented by the formula (1): wherein R represents a hydrogen atom, an alkyl group, an aralkyl group or an acyl group, n stands for 0 to 2 and m stands for 1 to 5 or salt thereof, and a pharmaceutical containing the derivative or salt as an effective ingredient.
摘要:
A process for the production of silicon-containing ceramic whiskers is disclosed which includes the steps of: (a) forming a solid body of a mixture including an organosilicon polymer having a number average molecular weight of 500-50,000 and having a skeleton consisting of silicon atoms or silicon atoms and carbon atoms, and carbon; and (b) pyrolyzing the solid body in a noble gas atmosphere or a nitrogen gas atmosphere to form silicon carbide or silicon nitride whiskers.
摘要:
A quinolone carboxylic acid derivative having the following formula (1), ##STR1## wherein R.sup.1 is a hydrogen atom, an alkyl group, an aralkyl group, an ester residual group which can be hydrolyzed in living bodies, R.sup.2 is a hydrogen atom or an amino group which may be substituted by one or two lower alkyl groups, X is a hydrogen atom or a halogen atom, Y is CH.sub.2, O, S, SO, SO.sub.2, or N--R.sup.3, wherein R.sup.3 is a hydrogen atom or a lower alkyl group, and Z is an oxygen atom or two hydrogen atoms; or a salt thereof; and an antimicrobial agent comprising the same. The compound exhibits a superior antimicrobial activity, especially against gram positive microorganisms, and is thus useful for the treatments and prevention of various infectious diseases in clinics.
摘要:
The invention relates to a bar code label printer including a label sheet feeding unit for feeding a label sheet on which plural labels are adhered to at regular intervals, a printing unit for printing a bar code on the respective labels, a label peeling unit for peeling the printed labels from the label sheet, a sheet drawing unit for drawing the label sheet after the peeling unit, a bar code verifying unit for verifying the bar code printed on the label to detect an ineffective bar code, a re-printing unit for re-printing the same bar code as the ineffective bar code on the next label when the bar code verifying unit detects the ineffective bar code, and an ineffective bar code label remaining unit for remaining the ineffective bar code label on the label sheet without peeling. A bar code label issuing method uses the above described bar code label printer to issue only effective bar code label in an automatically control manner.
摘要:
In the case of extruding a W/O type emulsion having a high viscosity obtained by stirring a mixture of a vinyl monomer solution composed of a vinyl monomer which is water insoluble and in a liquid state at normal temperature, a surface active agent having a hydrophilic-lipophylic balance of 3 to 6, and a polymerization catalyst with water, cement, and synthetic fibers through a die, at least one rectifying plate having a given form is disposed in the die near the outlet thereof to direct the synthetic fibers in the W/O type emulsion to the extruding direction.When the tabular plate obtained by extrusion-molding the W/O type emulsion by the method of this invention is hardened and dried, a light-weight and high-strength plastic concrete suitable for building materials is obtained.
摘要:
Derivatives of 3-acylamino-3-deoxyallose represented by the following formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be hydrogen atoms, or R.sup.1 and R.sup.2, and R.sup.3 and R.sup.4 may be in combination an isopropylidene group, R.sup.5 represents a hydrogen atom or alkyl group, and R.sup.6 represents a hydrogen atom or acyl group, are disclosed. One of the typical compound 3-deoxy-3-(3-tetradecanoyloxytetradecanoylamino)-1,2:5,6-di-O-isopropylidene- .alpha.-D-allofuranose is prepared by reacting 3-tetradecanoyloxytetradecanoic acid and 3-amino-3-deoxy-1,2:5,6-di-O-isopropylidene-.alpha.-D-allofuranose in the presence of N,N'-dicyclohexylcarbodiimide, as a dehydrating agent. The compound has an excellent carcinostatic activity.
摘要:
A process for producing acidic boratozirconium chloride sols which comprises: reacting a zirconium compound with a boron compound in molar ratios of B/Zr of 0.3-1.2 together with a compound of a metal M other than boron, the metal M being selected from the group consisting of divalent, trivalent, tetravalent and pentavalent metals in molar ratios of M/Zr of about 0.01-1 in water in the presence of chloride ions in molar ratios of Cl/Zr of not less than about 1.The acidic boratozirconium chloride sol may be converted to basic boratozirconium sols by reacting the acidic sol with a basic carbonate compound such as ammonium carbonate.The sols, either acidic or basic, are readily gelled by contact with a dehydration solvent such as methanol or acetone.The gel is calcined at relatively low temperatures to provide zirconia which is either very pure or stabilized in varied degrees.
摘要:
There are provided a radical polymerizing composition giving a cured resin having excellent elasticity which comprises a mixture of two or more kinds of monomethacrylic acid esters having specific structure at specific mixing ratio and organic peroxide, and more particularly an anaerobic liquid gasket having excellent sealing properties, pressure resistance and good storage stability which comprises these polymerizing composition, filler, anaerobic curing accelerator and stabilizer.
摘要:
A light-weight high-strength plastic concrete is obtained by mixing a nonionic surface active agent having a hydrophilic-lipophilic balance of 3 to 6, a vinyl monomer, and a cement slurry with stirring to form a W/O type emulsion, thereafter polymerizing the vinyl monomer and hardening the cement in the W/O type emulsion simultaneously.The plastic concrete obtained by the aforesaid process has a smooth surface and the appearance thereof is almost same as that of an ordinary cement concrete. The plastic concrete is also excellent in workability such as cutting, scraping riveting, etc.
摘要:
A two part type acrylic adhesive composed of liquid I comprising an acrylate ester monomer, a polymer soluble in the acrylate ester monomer, and an organic peroxide and liquid II containing a hardening accelerator capable of hardening said liquid I by polymerization at a temperature lower than room temperature, wherein at least liquid I contains 0.005 to 0.1% by weight polyphosphoric acid.