Abstract: The present invention relates to a 2,3-diaminopropionic acid derivative of the formula (1): ##STR1## or a pharmaceutically acceptable salt thereof. The compounds of the present invention are useful as a platelet aggregation inhibitor, a cancer metastasis inhibitor, a wound healing agent or a bone resorption inhibitor.

Abstract: The present invention relates to an novel dipiperidine derivative represented by formula (1), or a pharmaceutically acceptable salt thereof; ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group; Y represents a single bond or an oxygen atom; n represents 1, 2 or 3; W represents a methylene group or an oxygen atom; R.sup.2 represents a hydrogen atom or a carboxyl modifying group which can be eliminated in vivo; X.sup.1 and X.sup.3 are the same or different and each represents a hydrogen atom or a lower alkyl group.This compound is useful as platelet aggregation inhibitors, cancer metastasis inhibitors, wound remedies or bone resorption inhibitors.

Abstract: An intimate mixture comprising (A) a substantially linear aromatic polyazole and (B) a sparingly crystallizable aromatic copolyamide having a glass transition temperature of at least 200.degree. C. and a flow initiation temperature of not more than 500.degree. C. in such proportions represented by A/(A+B)=0.15-0.70 by weight, and a process for producing the intimate mixture, which comprises dissolving the aromatic polyazole (A) and the aromatic copolyamide (B) in a weight ratio represented by A/(A+B)=0.15-0.70 in a common solvent, and forming an intimate mixture of the aromatic polyazole (A) and the aromatic copolyamide (B) from the solution using a coagulating agent.

Abstract: This invention provides an optical laminar structure having an optically selective transmitting function accordant with light wavelength, whereby it is capable of having high transmittance for visible ray and low transmittance for near infrared ray and infrared ray, so that said optical laminar structure can be offered at a low price to expand its applications not only in special optical lines but also in general glazing use.

Abstract: A length composite member comprising a metallic sheet and a rigid synthetic resin coating is bent to be arcuate in transversal section. The thickness of the metallic sheet of such composite member as bent to be arcuate in transversal section is extremely small as compared with the radius of curvature of the desired arcuate sectional curve. A plurality of small arcuate sectional bent portions in transversal section are formed distributed in the transversal or width direction of the metallic sheet. The centers of the respective curvatures of these plurality of small arcuate, sectional bent portions in transversal section are selected to exist on the same side as that of the center of curvature of the composite member bent to be arcuate. The metallic sheet is generally bent in advance to be arcuate in transversal section and both main surfaces of the metallic sheet thus bent are coated with rigid synthetic resin.

Abstract: Phase control device comprising a driven wheel and a driving wheel. The driven wheel engages an endless loop, whose going part toward the driving wheel and returning part from the driving wheel engage a pair of idling wheels and one or plural pairs of movable wheels. The movable wheels are finely adjusted toward a cross direction to the endless loop so that either the going part and the returning part is pulled, while the other is slackened. As a result, the phase of the driven wheel is changed so that timing of the driven wheel against the driving wheel can be regulated. The phase control device provides timing of the operation of a pair of machines such as coveyors which link mutually.

Abstract: The present invention provides the structure of a multilayered unit for windows, comprising a plurality of planar members, a flexible film disposed between, and spaced from, two of said planar members, and a stretching member capable of developing elasticity for stretching the flexible film taut by imparting thereto a force in a direction angularly displaced to the film surface of the said flexible film extending at least over that region of said planar members which forms a window, and the planar member present on at least one side of the flexible film being transparent or semi-transparent.The present invention also provides a multilayered unit for windows and a multilayered window having the same stretching member as in the above structure.

Abstract: Selectively light transmitting or electrically conductive film having a heat shrinking property and preformed self-supporting flexible laminar structure including said film, which are suitable for a safety glass-type construction use with a good appearance.

Abstract: In a selective light-transmitting laminated structure comprising (a) a laminate composed of a transparent substrate and formed on at least one surface of the substrate, a thin metallic layer and/or a thin metal oxide layer, if required in combination with a thin film layer having a high refractive index, and (b) a protective layer composed mainly of a polymer having structural units of the general formula ##STR1## wherein R represents a hydrogen atom or a methyl group, as main structural units, the improvement wherein a urethan linkage exists in the interface between the laminate (a) and the protective layer (b).

Abstract: A length composite member comprising a metallic sheet and a rigid synthetic resin coating is bent to be arcuate in transversal section. The thickness of the metallic sheet of such composite member as bent to be arcuate in transversal section is extremely small as compared with the radius of curvature of the desired arcuate sectional curve. A plurality of small arcuate sectional bent portions in transversal section are formed distributed in the transversal or width direction of the metallic sheet. The centers of the respective curvatures of these plurality of small arcuate sectional bent portions in transversal section are selected to exist on the same side as that of the center of curvature of the composite member bent to be arcuate. The metallic sheet is generally bent in advance to be arcuate in transversal section and both main surfaces of the metallic sheet thus bent are coated with rigid synthetic resin.

Abstract: A cured or uncured linear aromatic polyester composition consisting essentially of:(A) 100 parts by weight of a saturated linear aromatic polyester in which at least 70 mole % of the acid component consists of an aromatic dicarboxylic acid, and(B) 0.1 to 50 parts by weight of a polyallyl compound which contains not less than 2 allyl or substituted allyl groups in the molecule, does not decompose under conditions of melt-blending with the polyester (A), and is non-reactive with the polyester (A) under conditions of melt-blending with the polyester (A), the allyl or substituted allyl groups being expressed by the following formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are identical to or different from each other and represent a member selected from the group consisting of a hydrogen atom and organic groups.

Abstract: A novel fiber- or film-forming high-molecular-weight aromatic copolyamide consisting essentially of (1-A) a diamine recurring unit of the formula ##STR1## such as 3,4'-diaminodiphenyl ether or 3,4'-diaminodiphenyl sulfone, (1-B) a diamine recurring unit of the formula --HN--Ar.sub.1 --NH-- such as p-phenylene diamine, and (2) a dicarboxylic acid recurring unit of the formula --OC--Ar.sub.2 --CO-- such as terephthaloyl dichloride, wherein Y.sub.1, Ar.sub.1 and Ar.sub.2 are as defined in the specification, the total amount of recurring units (1-A) and (1-B) being substantially equimolar to recurring unit (2), and the proportion of recurring unit (1-A) being 7.5 to 40 mole% of the entire recurring units. The copolyamide is well soluble in solvents to give solutions having good flowability and stability that can afford shaped articles with superior thermal stability, fire retardancy and mechanical properties. A process for preparing the copolymer, and a dope of the copolymer are also provided.