摘要:
A benzenesulfonate salt of (2S,4S)-2-cyano-4-fluoro-1-[(2-hydroxy-1,1-dimethyl)ethylamino]acetylpyrrolidine that has an excellent DPPIV inhibition activity as well as physical properties (e.g., stability) required for pharmaceutical preparations. The present invention allows easy obtaining of the compound in high-purity uniform crystal form with excellent solid-state stability.
摘要:
The present invention relates to an active energy ray curable composition for coating optical disc, comprising a urethane (meth)acrylate compound having at least one amide group in the molecule, an ethylenically unsaturated compound other than the urethane (meth)acrylate compound and a photopolymerization initiator; and an optical disc having a cured coating layer obtained by curing the composition.
摘要:
The present invention relates to an active energy ray curable composition for coating optical disc, comprising a urethane (meth)acrylate compound having at least one amide group in the molecule, an ethylenically unsaturated compound other than the urethane (meth)acrylate compound and a photopolymerization initiator; and an optical disc having a cured coating layer obtained by curing the composition.
摘要:
A low loss, small scale piezoelectric transformer, suited for a cold cathode tube load, and having a high effective coupling factor, is provided using a piezoelectric plate having a single polarization direction. Controlling the dimensions of the third electrode portion 15a constituting the high impedance portion makes it possible easily to adjust the capacitance of the electrostatic capacitor formed between the first electrode portion 12 and the third electrode portion in accordance with the load. Also, the second electrode portion 13 and the fourth electrode portion 15b constituting the low impedance portion are substantially equal in area and the third electrode portion and the fourth electrode portion are formed in one piece, so that energy propagation efficiency can be increased. Consequently, the effective coupling factor resulting from the electrode structure and the vibration mode can be kept high even if the capacitance is changed freely, and thus high element efficiency and a small amount of generated heat can be maintained and stress can be decreased.
摘要:
A plural-chamber container capable of indicating whether or not a peelable partition wall is peeled and hence a medical professional can quickly become aware of a state of communication among respective chambers when using the plural-chamber container, wherein the plural-chamber container formed of a synthetic resin film and a plurality of chambers compartmentalized by a peelable partition wall formed by thermally welding part of the opposed films, characterized in that a means capable of indicating the peeling of the partition wall is provided on a surface of the plural-channel container.
摘要:
A toroidal type continuously variable transmission is provided which allows the outer peripheral face of power rollers to be processed by industrial techniques, and prevents an outer ring and a retainer from rubbing against an input side concave surface or an output side concave surface. The outer peripheral face of the power roller is formed of a spherical surface portion and a cylindrical surface portion continuous from a larger diameter side of the spherical surface portion, and the outer diameter of the cylindrical surface portion is selected to be longer than the outer diameter of the outer ring and the outer diameter of the retainer.
摘要:
Disclosed is a composition comprising(A) 10 to 60 parts by weight of a polybutylene glycol di(meth)acrylate represented by the general formula (I): ##STR1## (B) 20 to 80 parts by weight of a specific urethane poly(meth)acrylate or epoxy poly(meth)acrylate,(C) 5 to 60 parts by weight of a specific mono(meth)acrylate, and(D) 0 to 60 parts by weight of a compound having at least one polymerizable double bond in the molecule,with the total amount of components (A), (B), (C) and (D) being 100 parts by weight. This composition is suitable for the making of plastic lenses because of its excellent properties such as high thermal resistance, high impact resistance, good dyeability, low water absorption and high surface accuracy.
摘要:
A cephalosporin derivative represented by the formula ##STR1## wherein R.sup.1 is a hydrogen atom or a protecting group of the amino group, R.sup.2 is a hydrogen atom or a protecting group of the hydroxyl group, R.sup.3 is a hydrogen atom or a protecting group of the carboxyl group, X is a halogen atom, a cyano group, a vinyl group, a lower alkoxy group having 1 to 4 carbon atoms or a lower alkylthio group having 1 to 4 carbon atoms and n is an integer of 1 to 3, and a non-toxic salt thereof are useful as antibacterial agents for oral administration.
摘要:
A key telephone system comprising a key service unit and key telephone sets is configured by the present invention so that system data are registered in an IC card and the system data so registered are fed to the key service unit by the insertion of the IC card in the key service unit.
摘要:
A plastic lens having a refractive index of not less than 1.55, comprising a polymer formed from dimethallyl phthalate as major monomeric constituent and, if necessary, one or more monomers represented by the general formula ##STR1## wherein R.sub.1 and R.sub.2 represent each a hydrogen atom or methyl group and m and n represent each an integer of from 0 to 3, or ##STR2## wherein R.sub.3 and R.sub.4 represent each a hydrogen atom or methyl group and n represents an integer of from 2 to 9. A method for manufacturing such a lens is also disclosed.