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    • 3. 发明授权
    • Process for preparing polyamide with molten dicarboxylic acid component
    • 用熔融二羧酸成分制备聚酰胺的方法
    • US4438257A
    • 1984-03-20
    • US451397
    • 1982-12-20
    • Akira MiyamotoSenzo ShimizuMasahiro HaradaTamotu AjiroHideki Hara
    • Akira MiyamotoSenzo ShimizuMasahiro HaradaTamotu AjiroHideki Hara
    • C08G69/00C08G69/26C08G69/28
    • C08G69/28C08G69/265
    • A process for preparing a polyamide is provided. The polyamide is prepared by causing a dicarboxylic acid and a diamine to polycondensate directly under an atmosphere of an inert gas at atmospheric pressure. The polycondensation reaction is mainly carried out in two diamine component-adding steps, one step comprising adding part of the diamine to the molten dicarboxylic acid until the molar ratio of the diamine to the dicarboxylic acid is brought to within the range of from 0.900 to 0.990 while raising continuously the temperature of the reaction mixture to a temperature not exceeding about 5.degree. C. above the melting point of the object polyamide and the other step comprising adding the remainder of the diamine to the reaction mixture maintained at a temperature higher than about 10.degree. C., but not exceeding about 35.degree. C. above the melting point of the object polyamide until the overall molar ratio of the diamine to the dicarboxylic acid is brought to within the range of from 0.995 to 1.005.
    • 提供了制备聚酰胺的方法。 通过使二羧酸和二胺在大气压下在惰性气体气氛下直接缩聚制备聚酰胺。 缩聚反应主要在两个二胺组分添加步骤中进行,一步包括将一部分二胺加入到熔融二羧酸中直到二胺与二羧酸的摩尔比达到0.900-0.990 同时将反应混合物的温度持续升高至高于目标聚酰胺熔点以上约5℃的温度,另一步骤包括将剩余的二胺加入保持在高于约10℃的温度的反应混合物中 ℃,但不超过目标聚酰胺熔点的约35℃,直到二胺与二羧酸的总摩尔比达到0.995至1.005的范围。
    • 5. 发明授权
    • Highly reactive aromatic hydrocarbon-formaldehyde resin and process for
preparing the same
    • 高反应性芳烃 - 甲醛树脂及其制备方法
    • US4689392A
    • 1987-08-25
    • US844437
    • 1986-03-26
    • Akira MiyamotoToshiaki NishimuraYoshitaka YamagishiYasumitsu Higuchi
    • Akira MiyamotoToshiaki NishimuraYoshitaka YamagishiYasumitsu Higuchi
    • C08G8/28C08G10/02C08G10/04C08G14/04C08G16/02
    • C08G14/04C08G10/02C08G10/04C08G8/28
    • A highly reactive aromatic hydrocarbon-formaldehyde resin having a diarlymethane content of not more than 5% by weight, essentially containing reactive groups of any one of CH.sub.2 OH, CH.sub.2 OCH.sub.3 and CH.sub.2 OCH.sub.2 OCH.sub.3 at both molecular terminals and having a xylenol value of at least 15 mol/kg as an index of reactivity with a compound having active hydrogen atoms is prepared by reacting an aromatic hydrocarbon such as xylene, mesitylene or naphthalene with formaldehyde at a molar ratio of the formaldehyde to the aromatic hydrocarbon of 2.0 to 5.0, a sulfuric acid concentration of 15 to 35% by weight in an aqueous layer and a reaction temperature of 80.degree. to 110.degree. C. while controlling a formaldehyde conversion within a range of 50 to 70% by mole over the range 4 to 8 hours. By reaction of the aromatic hydrocarbon-formaldehyde resin with the compound having reactive hydrogen atoms such as phenols and carboxylic acids, a modified aromatic hydrocarbon resin capable of giving a cured resin having a high mechanical strength and a high heat resistance can be obtained.
    • 二甲苯含量为5重量%以下的高反应性芳烃 - 甲醛树脂,基本上含有两个分子末端的CH 2 OH,CH 2 OCH 3和CH 2 OCH 2 CH 3中的任何一种的反应性基团,二甲苯酚值至少为15mol / kg 作为与具有活性氢原子的化合物的反应性的指标,是通过使二甲苯,均三甲苯,萘等芳香族烃与甲醛与芳香族烃的摩尔比为2.0〜5.0,硫酸浓度15 至35重量%,反应温度为80℃至110℃,同时在4-80小时的范围内控制甲醛转化率为50至70摩尔%。 通过芳族烃 - 甲醛树脂与具有反应性氢原子的化合物如酚和羧酸的反应,可以获得能够得到具有高机械强度和高耐热性的固化树脂的改性芳族烃树脂。
    • 6. 发明申请
    • SIMULATION DEVICE, SIMULATION SYSTEM, METHOD OF SIMULATION AND PROGRAM
    • 仿真器件,仿真系统,仿真和程序方法
    • US20130132046A1
    • 2013-05-23
    • US13638757
    • 2011-03-07
    • Akira MiyamotoMichihisa KoyamaKazuki Nakamura
    • Akira MiyamotoMichihisa KoyamaKazuki Nakamura
    • G06F17/50
    • G06F17/5009G01N15/0886
    • A simulation system (101) includes an X-ray CT device (11) that obtains a tomographic image of a porous sample, and a simulation device (14) that simulates a mercury intrusion method by processing a laminated tomographic image of the sample. The simulation device (14) includes a modeling means which processes the laminated tomographic image of the sample, and which models an internal structure of the sample, a minimum-diameter obtaining means that obtains a minimum entrance diameter when mercury enters in a pore of the sample at a predetermined pressure based on a surface energy of the sample and a pressure, and a means that simulates a liquid entering in the interior of the pore from one surface of the sample based on a diameter of the pore of the modeled sample and the minimum entrance diameter.
    • 模拟系统(101)包括获得多孔样品的断层图像的X射线CT装置(11),以及通过处理样品的层叠断层图像来模拟水银侵入方法的模拟装置(14)。 模拟装置(14)包括:模拟装置,其处理样品的层叠断层图像,并对样品的内部结构进行建模;最小直径获取装置,当汞进入到所述样品的孔中时获得最小入口直径 基于样品的表面能和压力的预定压力的样品,以及基于样品的孔的直径来模拟从样品的一个表面进入孔的内部的液体的装置,以及 最小入口直径