摘要:
The present invention has an object to provide curatives for epoxy resins and curing accelerators for epoxy resins, which both have improved subliming and decomposing properties and which, when mixed with an epoxy resin, enable the mixture to be greatly improved in thermal stability that is extremely important for the control of a curing reaction and to have a prolonged pot life (stability as a one-pack mixture comprising the epoxy resin, curative, etc.) and improved curability at low temperatures. The curative is characterized by being a clathrate comprising a tetrakisphenol compound represented by a general formula (I), wherein X represents (CH2)n, wherein n is 0, 1, 2 or 3, and R1 to R8 each represents hydrogen, a lower alkyl, optionally-substituted phenyl, halogeno or a lower alkoxy, and the curing accelerator is characterized by being a clathrate comprising a tetrakisphenol compound represented by the general formula (I) shown above and a compound accelerating the curing of a compound which reacts with the epoxy group of an epoxy resin to cure the resin.
摘要翻译:本发明的目的是提供用于环氧树脂的固化剂和用于环氧树脂的固化促进剂,它们都具有改进的升华和分解性能,并且当与环氧树脂混合时,能够使混合物的热稳定性大大提高 对于固化反应的控制是重要的,并且具有延长的适用期(作为包含环氧树脂,固化剂等的单组分混合物的稳定性)和在低温下的改进的固化性。 固化剂的特征在于包含由通式(I)表示的四苯酚化合物的包合物,其中X表示(CH 2)2,其中n为0,1,2或3,R R 8和R 8各自表示氢,低级烷基,任选取代的苯基,卤代或低级烷氧基,固化促进剂的特征在于包含四苯酚的包合物 由上述通式(I)表示的化合物和加速与环氧树脂的环氧基反应的化合物固化以使树脂固化的化合物。
摘要:
The present invention has an object to provide curatives for epoxy resins and curing accelerators for epoxy resins, which both have improved subliming and decomposing properties and which, when mixed with an epoxy resin, enable the mixture to be greatly improved in thermal stability that is extremely important for the control of a curing reaction and to have a prolonged pot life (stability as a one-pack mixture comprising the epoxy resin, curative, etc.) and improved curability at low temperatures. The curative is characterized by being a clathrate comprising a tetrakisphenol compound represented by a general formula [I]; wherein X represents (CH2)n, wherein n is 0, 1, 2 or 3, and R1 to R8 each represents hydrogen, a lower alkyl, optionally-substituted phenyl, halogeno or a lower alkoxy, and the curing accelerator is characterized by being a clathrate comprising a tetrakisphenol compound represented by the general formula [I] shown above and a compound accelerating the curing of a compound which reacts with the epoxy group of an epoxy resin to cure the resin.
摘要:
It is to provide a silsesquioxane having α,β-diol group, and to provide an organic-inorganic hybrid resin composition comprising silsesquioxane and hydroxyalkyl cellulose. A composition comprising a cage-type structure of silsesquioxane represented by general formula (A), and a partially cleaved cage-type structure of silsesquioxane represented by general formula (B); (RSiO3/2)l (A) (RSiO3/2)m(RSiO2H)n (B) [wherein in formulae (A) and (B), l and m represent an integer of 4 or more, n represents an integer of 1 or more, and n/(l+m) is 0.03 to 0.2; each R may be the same or different, and represents an alkoxy group with 1 to 10 carbons, etc.; wherein at least one R in one molecule is a group having α,β-diol group, and when the number of groups having α,β-diol is 2 or more, they may be the same or different].
摘要:
It is to provide a silsesquioxane having α,β-diol group, and to provide an organic-inorganic hybrid resin composition comprising silsesquioxane and hydroxyalkyl cellulose. A composition comprising a cage-type structure of silsesquioxane represented by general formula (A), and a partially cleaved cage-type structure of silsesquioxane represented by general formula (B); (RSiO3/2)l (A) (RSiO3/2)m(RSiO2H)n (B) [wherein in formulae (A) and (B), l and m represent an integer of 4 or more, n represents an integer of 1 or more, and n/(l+m) is 0.03 to 0.2; each R may be the same or different, and represents an alkoxy group with 1 to 10 carbons, etc.; wherein at least one R in one molecule is a group having α,β-diol group, and when the number of groups having α,β-diol is 2 or more, they may be the same or different].
摘要:
Novel molecular compounds containing carboxylic acid derivatives represented by general formula (I) or (II) as the constituent compound and exhibiting excellent performances in various technical fields including selective separation of useful substances, chemical stabilization, nonvolatilization, prolongation of release and powderization, wherein X is (CH2)n or p-phenylene; n is 0, 1, 2 or 3; R1 to R8 and R13 to R20 are each hydrogen, C1-C6 alkyl, C2-C4 alkenyl, phenyl optionally substituted with C1-C6 alkyl, halogeno or C1-C6 alkoxy; and R9 to R12 and R21 to R24 are each hydrogen, C1-C6 alkyl, C2-C4 alkenyl, C11-C12 aralkyl or an alkali metal.
摘要:
It is an object of the present invention to provide molecular compounds useful in the fields of state-of the-art materials, such as formulations, waste water treatments, energy transducers, conductors and bio-model reactions, in a way that interaction points and forces working inside polymer assemblies are fixed as well as controlled so that constituent polymers are aligned and modified. It is also an object of the present invention to provide methods for aligning and/or modifying polymers having hydrogen bond sites. A molecular compound is produced from a tetrakis aryl compound represented by Formula (I) (wherein, X is (CH2)n, or p-phenylene; n is 0, 1, 2 or 3; Y is hydroxyl, carboxyl or optionally substituted amino: and R1 and R2 are each hydrogen, lower alkyl, optionally substituted phenyl, halogen or lower alkoxy) and a polymer having hydrogen bond sites, such as polyethers, polyalcohols or polyamines.
摘要:
It is an object of the present invention to provide molecular compounds useful in the fields of state-of the-art materials, such as formulations, waste water treatments, energy transducers, conductors and bio-model reactions, in a way that interaction points and forces working inside polymer assemblies are fixed as well as controlled so that constituent polymers are aligned and modified. It is also an object of the present invention to provide methods for aligning and/or modifying polymers having hydrogen bond sites. A molecular compound is produced from a tetrakis aryl compound represented by Formula (I) (wherein, X is (CH2)n, or p-phenylene; n is 0, 1, 2 or 3; Y is hydroxyl, carboxyl or optionally substituted amino: and R1 and R2 are each hydrogen, lower alkyl, optionally substituted phenyl, halogen or lower alkoxy) and a polymer having hydrogen bond sites, such as polyethers, polyalcohols or polyamines.
摘要:
A gas sensor control device for controlling a gas sensor, the gas sensor including a gas sensor element that includes a cell including a pair of electrodes and a solid electrolyte, the gas sensor control device including a circuit board connectable to the gas sensor. The circuit board has mounted thereon a voltage control unit mounted on the circuit board and configured to control a voltage developed across a pair of electrodes of the cell to a constant voltage; a temperature detecting unit mounted on the circuit board and configured to detect a temperature of the circuit board; and a voltage correcting unit mounted on the circuit board and configured to apply a correction voltage to the voltage control unit compensating for a temperature-dependent variation in the constant voltage based on the temperature detected by the temperature detecting unit.
摘要:
The pressurized water reactor according an embodiment comprises: a cylindrical reactor pressure vessel (1) to which inlet nozzles are connected; fuel assemblies which are contained within the reactor pressure vessel (1); a cylindrical reactor core barrel (3) which surrounds the fuel assemblies and forms an annular downcomer (6) between the reactor core barrel (3) and the inner surface of the reactor pressure vessel (1); and radial supports. The radial supports are supports which are arranged below the downcomer (6) at intervals in the circumferential direction, each has vertical flow path formed therein, and position the reactor core barrel (3) and the reactor pressure vessel (1). The radial supports each has, for example, a flow path-equipped radial keys (21) and a key groove member (40).
摘要:
The present invention provides a hydroxyalkyl cellulose having a viscosity of 1.10 mPa·s to 1.95 mPa·s in a 2%-concentration aqueous solution at 20° C., and a solid formulation containing the hydroxyalkyl cellulose.