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- polymethoxy acetal 聚甲氧基乙缩醛
- Acetal tubular load stabilizing frame. 令负重更为稳定。
- Acetal is among the strongest and stiffest of all thermoplastics. 在所有的热塑性塑料中,乙缩醛具有最高的强度和硬度。
- "Acetal Method" is a new technology to prepare phenolic resin. “缩醛法”是一种合成酚醛树脂的新方法。
- OBJECTIVE To synthesize 4-chlorobutanal acetal by improved method. 目的改进4-氯丁醛缩醛的合成方法。
- Do not contact methylene chloride acet (like nail oil) strong acid detergent. 不要接触亚甲基氯化物、丙酮(去指甲油剂)、强酸清洗剂。
- If contact with nail oil use alcohol (no contain acet) and then water to clean. 若沾上指甲油请用不含丙酮的清洗剂(如:天那水、酒精),再用水冲。
- ACET devices can be readily integrated on chip into a microsystem.This offers insight into designing ACET lab-chips. 研究结果为设计交流电热效应芯片实验室提供了参考依据。
- MAIN OUTCOME MEASURES:The location relation of the sciatic nerve and the acet abulum. 主要观察指标:坐骨神经与髋臼的位置关系。
- N-Phenylacetamide;Acetylaniline;Acetamide, N-phenyl-;n-phenyl-acetamide ... n-phenyl-acetic acid;acet ... N-乙酰苯胺;N-苯基乙酰胺;退热冰;乙酰苯胺香港
- Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst. 以非质子酸氯化亚锡为催化剂 ,催化合成了丁醛 - 1 ,2 -丙二醇缩醛。
- Because of the strong cohesive force,PVA adhesive is widely useed.But most of them is polyvinyl acetal adhesive. 由于较强的粘结力,聚乙烯醇粘合剂有着广泛的应用,但大部分是聚乙烯醇缩醛类。
- Aim\ Enanthal diethyl acetal is prepared with heptaldehyde and triethyl orthoformate as raw materials. 目的研究以庚醛和原甲酸三乙酯为原料制备庚醛二乙缩醛的工艺条件。
- The aldehyde acetal(6) and acid(7) are prepared by the acetalation of 1,2 ethandiol and oxidation. 后者经与乙二醇缩醛化及氧化分别制得该醛的缩醛(6)及羧酸(7)。
- An improved method for the preparation of N,N-dimethyl formamidediisopropyl acetal was reported. 关键词:N,N-二甲基甲酰胺二异丙基缩醛,制备|全部关键词
- The Ultraform acetal grades fulfill the demands imposed on an engineering material in especially high measure. 缩醛的Ultraform等级的要求履行对工程材料,特别是高的措施。
- Butyraldehyde glycol acetal was synthesized from butyraldehyde and glycol by using iodine as catalyst. 以单质碘为催化剂,通过丁醛和乙二醇反应合成了丁醛乙二醇缩醛。
- The necessary material of 2-(2-methoethyl) acetaldehyde diethyl acetal was synthesized in addition. 另外还合成了必需原料2-(2-甲氧基乙氧基)乙醛二乙醇缩醛。
- During the test run of 2000 h,the conversion of acetal and the yield of ethyl vinyl ether maintained about 96. 研究了在固体催化剂上乙缩醛气相分解制乙烯基乙醚的反应性能。
- Results\ The best technology was concluded to yield over 95% of enanthal diethyl acetal. 目的研究以庚醛和原甲酸三乙酯为原料制备庚醛二乙缩醛的工艺条件。