摘要:
This invention is to provide a novel taxol derivative useful as an antitumor compound having respective substituent groups, represented by the following formula (I) which can be orally administered
摘要:
Aminophenol derivatives represented by the following formula (1): ##STR1## wherein X is O or S; A is alkylene, R.sup.1 is phenyl, etc., R.sup.2 and R.sup.3 are H or alkyl; R.sup.4 is substituted carbamoylalkyl, etc.; R.sup.5 is substituted amino, etc.; their salts, and optical isomers of the derivatives and salts. Also disclosed are gastrin receptor antagonists, cholecystokinin receptor antagonists, and medicines for digestive diseases. The compounds have strong binding inhibition against gastrin receptor or CCK-A receptor and also they have higher selectivity to either group of CCK-A receptor or gastrin receptor, and therefore, the compounds are useful for preventing and treating gastrointestinal diseases including peptic ulcers as well as central nervous system diseases.
摘要:
A printed circuit board connector has: an insulating housing (2); SMT type contacts (7, 11) disposed in the insulating housing and spaced apart from each other; and each contact having a lead (11) which extends to a junction surface (2a) of the housing so as to be soldered to a conductive pattern (16) formed on a printed circuit board (15). The lead (11) of each contact is a plating layer (10) formed on the junction surface (2a). The contacts (7) are pin contacts held in place by the insulating housing (2) so as to be electrically connected to the plating layer (10) formed as the leads. The contacts' leads are included in a common plane so that the reliability of electric connection and the durability of connector are improved, and the connector is rendered thinner and more compact to reduce an area required to mount it.
摘要:
Disclosed is an epoxy resin composition which is solid at ordinary room temperature, cures with excellent light resistance and heat resistance and minimal shrinkage, and is useful for encapsulating LEDs. The epoxy resin composition is characterized by comprising as an essential component an epoxy resin having an epoxy equivalent of 300-1000 g/eq and a softening point of 65-110° C. obtained by reacting a nonaromatic polycarboxylic acid (A) having an acid value of 100-250 mgKOH/g with a nonaromatic epoxy resin (B) having an epoxy equivalent of 100-400 g/eq. The nonaromatic polycarboxylic acid (A) may be obtained by reacting 1,4-cyclohexanedimethanol, 2,2-bis(4-hydroxycyclohexyl)propane, or 3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5,5]undecane with methylhexahydrophthalic acid or hexahydrophthalic acid.
摘要:
A vicinity search using register point data in a designated area reduces search time. The vicinity search data include at least category information, names of register points and country information. The search device conducts the vicinity search by specifying any one of category information to which the register points belong, names of the register points and country information, or a combination, by option and display. The search device further uses category information with flags representing the presence and absence of the register point data, whereby the register point data are searched by referring to the flags.
摘要:
The adhesive composition comprises a hydroxyl group-containing adhesive polymer having little or no carboxylic groups in the molecule, and a separate compound that is an aromatic carboxylic acid compound. This composition prevents the corrosion of a metal layer without requiring formation of a protective film in the production of an adhesive sheet comprising a metal layer.
摘要:
The developer solution of the invention is suitable for use to develop a positive-working resist composition comprising an alkali-soluble novolac resin and a naphthoquinone diazide compound and capable of giving a patterned image of the resist layer with a high contrast and increasing the effective depth of focus. The characteristic ingredient in the inventive developer solution is an alkali-soluble organic cyclic nitrogen compound such as N-hydroxyethyl piperazine, N-methyl-4-piperidone, 1,3-dimethyl-2-imidazolidinone and the like added in a specified concentration to a conventional developer solution containing tetramethyl ammonium hydroxide or choline as the water-soluble alkaline compound.
摘要:
This invention relates to an epoxy resin composition suitable for a solvent-free, one-component, room temperature-curable coating composition and to an epoxy-polysiloxane coating composition showing good adhesion to steel plates and the like and excellent weatherability. This epoxy resin composition comprises (a) an epoxy resin with an epoxy equivalent of 100-1000 g/eq., (b) a silane compound represented by the following general formula (1) Si(R1R2R3R4) (1) (wherein R1 is an alkyl group of 1-6 carbon atoms and R2-R4 are hydrogen atoms, alkyl groups of 1-10 carbon atoms, aryl groups, hydroxyl groups, or alkoxy groups of 1-6 carbon atoms) and a condensate thereof, and (c) a phosphoric acid represented by the following general formula (2) H(n+2)PnO(3n+1) (2) as essential components.
摘要翻译:本发明涉及一种适用于无溶剂的单组分室温固化涂料组合物和对钢板等具有良好粘合性和优异的耐候性的环氧 - 聚硅氧烷涂料组合物的环氧树脂组合物。 该环氧树脂组合物包含(a)环氧当量为100-1000g / eq的环氧树脂,(b)由以下通式(1)表示的硅烷化合物<?in-line-formula description =“In 线“公式”end =“lead”?> Si(R 1)2 R 2 R 3 S 4 R 4) (1)<?in-line-formula description =“In-line formula”end =“tail”?>(其中R 1是1-6个碳原子的烷基,R 0 > 2个R 4是氢原子,1-10个碳原子的烷基,芳基,羟基或1-6个碳原子的烷氧基)及其缩合物, (c)由以下通式(2)表示的磷酸<?in-line-formula description =“In-line Formulas”end =“lead”?> H(n + 2) SUB (3n + 1)(2)<?in-line-formula description =“In-line Formulas”end =“tail”?> as essential 组件。
摘要:
A modified phenolic hydroxyl-containing resin having a low free difunctional phenol content and represented by general formula (1); a solid epoxy resin having an epoxy equivalent of 450 to 2,500 g/eq and prepared by epoxidizing the above resin; and another solid epoxy resin having an epoxy equivalent of 1,500 to 60,000 g/eq and a number-average molecular weight of 3,000 to 15,000 and prepared by reacting the above epoxy resin with a difunctional phenol compound. Resin compositions containing these resins have many applications as powder coatings and can paints. In formula (1), X represents a residue of a difunctional phenol compounds; X's may be the same or different; and n is the number of repeating units and is an integer of 0 or above.
摘要:
A decorative sheet (10) comprising: (a) a light-transmitting covering film (12) which comprises a vinyl chloride resin; (b) a light-transmitting bonding composite layer (14) which is adhered to the back of said covering film and (c) a metal layer (16) which is adhered to the back of said bonding composite layer, wherein said bonding composite layer comprises the first resin layer (18) adhered to said covering film, and the second resin layer (20) adhered to said metal layer (16), said first resin layer (18) comprises a saturated polyester or a aminoethylated resin, and said second resin layer (20) comprises (i) a polyester having a siloxane bond in a molecule or (ii) a polyurethane resin having a siloxane bond in a molecule and a polyester unit.