摘要:
A first wiring pattern formed on a first layer of a multilayer wiring substrate, a second wiring pattern formed on a layer different from the first layer on which the first wiring pattern is formed, a penetration hole penetrating the front surface and the back surface of the substrate, and a penetration hole penetrating a front surface and a back surface of the substrate; and a fitting connector having a conductor part on a side surface inscribed in the penetration hole and fitting into the penetration hole are provided. The first wiring pattern and the second wiring pattern are exposed from the internal surface of the penetration hole, and the fitting connector connects a first end part of the conductor part and a second end part with an exposed part of the first wiring pattern and an exposed part of the second wiring pattern, respectively.
摘要:
An object of the present invention is to provide a composition for enhancing the immunological effects of a vaccine for viruses, bacteria and/or infectious disease pathogens, containing a stable activity-type provitamin; a method for enhancing the immunological effects of a vaccine for viruses, bacteria and/or infectious disease pathogens by administering the composition; and a method of employing the composition. A composition for enhancing the immunological effects of a vaccine for viruses, bacteria and/or infectious disease pathogens, contains L-ascorbic acid-2-phosphate and/or &agr;-tocopheryl phosphate as a stable activity antioxidant provitamin.
摘要:
The process of the present invention is a process for preparing 4,4'-dihydroxydiphenyl sulfone by subjecting phenol, and a sulfonating agent or phenolsulfonic acid to a dehydration reaction in the presence of a solvent, subsequently maintaining the reaction system at a temperature of between 100.degree. to 200.degree. C. and removing the solvent from the reaction system to cause the dehydration reaction to further proceed while allowing 4,4'-dihydroxydiphenyl sulfone to separate out and to subject dissolved 2,4'-dihydroxydiphenyl sulfone formed as a by-product to an isomerization reaction for converting the by-product to 4,4'-dihydroxydiphenyl sulfone, and eventually removing the solvent and the unreacted phenol from the system substantially entirely to complete the isomerization reaction, the process being characterized in that an aromatic sulfonic acid represented by the formula ##STR1## wherein X is a halogen atom, n is 0, 1 or 2, and m is 1 of 2 is caused to be present in the reaction system. 4,4'-Dihydroxydiphenyl sulfone can be produced by the process with a high purity and in a high yield.
摘要:
A process for preparing diarylsulfone, the process comprising reacting chlorosulfonic acid with a mixture of (i) aromatic hydrocarbon represented by the formula ##STR1## wherein one of X and Y is a halogen atom and the other is a halogen atom or a hydrogen atom and (ii) aromatic sulfonic acid represented by the formula ##STR2## wherein X and Y are as defined above.
摘要:
The present invention relates to an agent for preventing and treating skin diseases comprising as an active ingredient an ascorbic acid derivative which is a compound represented by the following formula (1) or a salt thereof and which per se exhibits no anti-oxidation activity but is capable of transforming in vivo into a compound having an anti-oxidation activity; wherein R1 represents a group capable of bonding to the carbon at the 2-position of the ascorbic acid skeleton through an ether or ester bond and transformable in vivo into a hydroxyl group, and R2 to R4 may be the same or different and each represents a hydroxyl group or a group derived therefrom.
摘要:
L-Ascorbic acid 2-phosphate zinc salt and a salt hydrate thereof having excellent solubility and exhibiting good stability even under weakly acidic conditions. Also disclosed is a process of manufacturing L-ascorbic acid 2-phosphate zinc salt by displacing a cation of a salt of an L-ascorbic acid 2-phosphate other than a zinc salt with a zinc cation. Further disclosed is a composition containing L-ascorbic acid 2-phosphate zinc salt or a salt hydrate thereof as an active ingredient.
摘要:
Disclosed herein are a highly purified tocopheryl phosphate and/or a salt thereof (tocopheryl phosphates) wherein a P,P'-bistocopheryl hypophosphate and/or a salt thereof (P,P'-bistocopheryl diphoshates) is contained in a proportion of not higher than 3% by weight; a process for producing a highly purified tocopheryl phosphate and/or a salt thereof, which comprises the steps of reacting a tocopherol with an oxyphosphorus trihalide followed by treating with an acid or basic aqueous solution to thereby form tocopheryl phosphates (i) in which P,P'-bistocopheryl diphoshates (ii) formed as by-products are contained, hydrolyzing the P,P'-bistocopheryl diphoshates (ii) under acid condition, and, optionally, rendering the hydrolyzate neutral or basic under basic condition; and a method of analyzing tocopheryl phosphates, comprising analyzing a sample containing components (i) and (ii) with the use of a high-performance liquid chromatograph column packed with a gel of a polymethacrylate having, bonded thereto, long-chain alkyl groups. None or only an extremely minute amount of P,P'-bistocopheryl diphoshates are contained in the highly purified tocopheryl phosphates, so that the highly purified tocopheryl phosphates exhibit antioxidant and blood circulation promoting effects, have excellent water solubility, are powdery so that the handling thereof is extremely easy, are free from cutaneous irritation and allergenecity and ensure dermal safety. Therefore, the highly purified tocopheryl phosphates are useful as cosmetic ingredients. The amounts of components (i) and (ii) can be simply measured with high accuracy by the above method.
摘要:
A vitamin E source composition for administration to animals, which comprises a tocopheryl phosphate, a salt thereof or a composition containing a tocopheryl phosphate or a salt thereof. Also, disclosed is a method of supplying vitamin E to animals which comprises administering to animals the above vitamin E source composition. The tocopheryl phosphoric acid and a salt thereof can be formed into a composition and also can contain an antioxidant or the like.
摘要:
The present invention provides a process for preparing 4,4'-dihydroxydiphenylsulfone which comprises subjecting a phenol and a sulfonating agent to dehydration reaction in the presence of mesitylene as a reaction medium while the produced 4,4'-dihydroxydiphenylsulfone is suspended in the mesitylene, and a process for preparing 4,4'-dihydroxydiphenylsulfone, characterized in that after the foregoing dehydration reaction, the 4,4'-dihydroxydiphenysulfone obtained as suspended in the mesitylene and/or retained in a liquid-free solid form is subjected to reaction for isomerization of 2,4'-dihydroxydiphenylsulfone produced as a by-product into 4,4'-dihydroxydiphenylsulfone with heating at a temperature of not lower than that for isomerization of 2,4'-dihydroxydiphenylsulfone into 4,4'-dihydroxydiphenylsulfone.
摘要:
A first wiring pattern formed on a first layer of a multilayer wiring substrate, a second wiring pattern formed on a layer different from the first layer on which the first wiring pattern is formed, a penetration hole penetrating the front surface and the back surface of the substrate, and a penetration hole penetrating a front surface and a back surface of the substrate; and a fitting connector having a conductor part on a side surface inscribed in the penetration hole and fitting into the penetration hole are provided. The first wiring pattern and the second wiring pattern are exposed from the internal surface of the penetration hole, and the fitting connector connects a first end part of the conductor part and a second end part with an exposed part of the first wiring pattern and an exposed part of the second wiring pattern, respectively.