摘要:
A Pentamethylene diisocyanate is obtained by phosgenating pentamethylenediamine or its salt obtained by a biochemical method, and contains 5 to 400 ppm of a compound represented by the general formula (1) below and a compound represented by the general formula (2) below in total:
摘要:
Disclosed is a polyurethane resin which is obtained by a reaction between a polyisocyanate component, which contains 1,4-bis(isocyanatomethyl)cyclohexane including not less than 80% by mole of trans isomers, and an active hydrogen compound component.
摘要:
A mounting apparatus includes: a heater head for bonding a liquid crystal display and a flexible printed circuit board by thermocompression; a cylinder as a heater head driving means for driving heater head to compress the liquid crystal display and flexible printed circuit board by a prescribed load; and a control mechanism as a stretch amount controlling means for adjusting a load change per unit of time after the heater head starts compressing the flexible printed circuit board by the cylinder as well as a time at which a required load is attained to control the stretch amount of the flexible printed circuit board by thermocompression. Preferably, the mounting apparatus is provided with a mechanism which performs measurement after preliminary bonding and which performs regular bonding while controlling based on the obtained information.
摘要:
Disclosed is a polyurethane resin which is obtained by a reaction between a polyisocyanate component, which contains 1,4-bis(isocyanatomethyl)cyclohexane including not less than 80% by mole of trans isomers, and an active hydrogen compound component.
摘要:
A Pentamethylene diisocyanate is obtained by phosgenating pentamethylenediamine or its salt obtained by a biochemical method, and contains 5 to 400 ppm of a compound represented by the general formula (1) below and a compound represented by the general formula (2) below in total:
摘要:
Disclosed is a polyurethane resin which is obtained by a reaction between a polyisocyanate component, which contains 1,4-bis(isocyanatomethyl)cyclohexane including not less than 80% by mole of trans isomers, and an active hydrogen compound component.
摘要:
Disclosed is a polyurethane resin which is obtained by a reaction between a polyisocyanate component, which contains 1,4-bis(isocyanatomethyl)cyclohexane including not less than 80% by mole of trans isomers, and an active hydrogen compound component.
摘要:
To provide a lithium secondary battery with a high critical discharge current even under a low temperature condition, with an excellent cycle characteristic and reduced manufacturing cost. The lithium secondary battery includes a wound type electrode body comprising a positive electrode plate, and a negative electrode plate both of which have been wound around a core via a separator, the electrode body being impregnated with a non-aqueous electrolyte, and a cylindrical case for housing the electrode body and the non-aqueous electrolyte; the case having at least one opening at either end thereof, which can be sealed. The separator is subjected to drying treatment after the electrode body is inserted into the cylindrical case.
摘要:
A polarizable electrode for use in an electrical double layer capacitor, which includes carbon fine-powders, a conductive auxiliary agent, and a binder. The tensile strength of the polarizable electrode is not less than 0.13 MPa. An amount of carbon particles displaced from the polarizable electrodes into an electrolytic solution in the electrical double layer capacitor is not more than 1.0 mg/cm2. The long-term performance degradation and self-discharge caused energy losses of the electrical double layer capacitor can be reduced.
摘要翻译:一种用于双电层电容器的可极化电极,其包括碳微粉末,导电助剂和粘合剂。 可极化电极的拉伸强度不低于0.13MPa。 在双电层电容器中从可极化电极移动到电解液中的碳粒子量不大于1.0mg / cm 2。 长期的性能下降和自放电导致双电层电容器的能量损耗可以降低。
摘要:
A method for continuous thermogravimetric analysis of coal, or other materials rich in carbon, for volatile matter and ash content, including the steps of exposing a coal sample to an atmosphere consisting essentially of about 1 to 5% by volume of oxygen and the remainder being nitrogen and inevitable impurities at a first specified temperature for a first given time, weighing the coal sample to determine a first weight loss during the first given time, the first weight loss corresponding to the amount of volatile matter in the coal sample, burning the coal sample under an oxygen atmosphere having a higher than normal oxygen concentration for a second given time at a temperature sufficient to burn carbon containing materials in the coal sample, and weighing the coal sample to determine a second weight loss during the first given time and the second given time, the second weight loss corresponding to the amount of volatile matter and the amount of ash content in the coal sample.