丁基

ACST factory including 10,000M2 working sit and 6,000M2 workshop, our main products are ACST8506 Steel Structure Waterproof Sealant, ASCT8518 Butyl Waterproof Adhesive Tape, ACST Polyurethane Foam, ACST8508 Waxy Undercoating, Wooden Floor For Container, SICON100 Neutral Cure Silicone Sealant, SICON 100 Silicone Acetic Sealant, Acrylic Latex Caulk SICON 104 etc. It is a professional manufacture that special in producing sealant, antisepsis paint, which widely used in construction, container and automobile.

ACST工厂占地面积10000平方米，厂房面积6000平方米，主要产品有：ACST 8506 钢结构专用丁基密封胶、ACST 8518丁基防水胶带、燕子牌单组分聚安酯发泡剂、ACST 8508蜡质沥青底盘漆、集装箱木地板、硅胶系列：SICON100和SICON101、SICON104丙烯酸树脂填缝胶等，是一家专业生产建筑、集装箱、汽车用密封胶和防腐漆的生产厂商。

The method is characterized in that: mixture of macromolecular dihydric alcohol and a dihydroxybutyl-terminated polydimethylsiloxane is dehydrated, added with diisocyanate for reaction, then added with a bis propionic acid, a dihydric alcohol chain extender and a catalyst - dibutyl tin laurate, and is diluted by acrylic ester; temperature reduction and emulsion are performed on the mixture after reaction; chain extension reaction is performed in water by a multi-amine chain extender, and siloxane modified polyurethane dispersoid which contains acrylic ester monomer is prepared; and an initiator - potassium persulphate is added into the siloxane modified polyurethane dispersoid for emulsion polymerization.

特征是先将大分子二元醇与二端羟丁基聚二甲基硅氧烷的混合液脱水后加入二异氰酸酯，反应后加入二羟甲基丙酸、二元醇扩链剂和催化剂二月桂酸二丁基锡，并用丙烯酸酯进行稀释，反应后降温乳化，用多元胺扩链剂在水中进行扩链反应，得到含有丙烯酸酯单体的硅氧烷改性聚氨酯分散体，然后再通过加入引发剂过硫酸钾进行乳液聚合。

This paper introduces the method of producing organotin and the Grignard method of preparing tetrabutyltin.

介绍了有机锡化合物的制备方法及格利雅法制备四丁基锡的原理；对传统的格利雅法合成四丁基锡工艺进行了改进，并报道了其半工业试验的效果

In order to obtained the six-membered ring compound and a thorough assignment of the spectra, and further to prove that the six-membered ring compound was formed from the hydrogen transfer, the compound N-butyl-4-(N-methylphenylamino)-5-amino- 1, 8-naphthalimide 6 was designed to obtained with N-butyl-4-bromo-5-amino-1, 8-naphthalimide and N-methyl phenylamine as the starting material. However it was difficult to obtain the desired product as the different solvent giving the different products except the desired product.

为了能够得到六元环化合物作为定标的物质及其确切的谱图分析结果，并且为了进一步证明由五元环产物通过氢转移得到六元环产物的正确性，设计用N-丁基4-溴-5-氨基-1，8-萘酰亚胺与N-甲基苯胺反应生成N-丁基-4--5-氨基-1，8-萘酰亚胺6，结果发现这种方法很难实现，选择不同的溶剂会生成不同的产物，却都不是目标产物。

First of all, these two standards in the test project and test methods for perfect more standardized, science, and coupled with the standard abouttwoweeks divisions, increasing differentiation of qualitative test (including infrared identification and chemical identification) by the main identification to enhance strict control formula control, part of the application to natural or other plastic impersonatea butylbenzoic stopple stopple quality, control and standardize butylbenzoic stopple market.

首先，这两个标准在测试项目和测试方法上力求更规范、科学，并结合标准按材料划分的特点，增加了鉴别定性试验，目的是通过鉴别试验加强主配方控制，严控部分掺用天然或其它胶来冒充丁基胶塞，控制胶塞质量，规范丁基胶塞市场。

Antioxygen 168 schemical name is tri (2, 4-di-butylphenyl)sulfite ester, which is made from 2, 4-di-butyl phenol and phosphorus trifluoride .

抗氧剂168化学名称为三(2，4-二叔丁基苯基)亚磷酸酯，由2，4-二叔丁基苯酚与三氯化磷反应制得。

The synthetic organic chemicals, such as phenol, m cresol, phloroglucinol, phenylamine, 3,5 xylenol, p tertiary butyl phenol, nitrobenzene, tert butanol and chloral were oxidized in supercritical water system.

研究了超临界水氧化系统中合成有机化学品，如酚、间苯三酚、对叔丁基酚、间甲酚、3 ，5-二甲酚、苯胺、硝基苯、叔丁醇、三氯乙醛等的氧化作用。

Treatment of dials with N-tert-butanesulfinamide, all biaryl dials were successfully converted into the corresponding bis-imines which were then treated with samarium diiodide to afford diamine products. The absolute configurations of all the intramolecular coupling products were determined by X-ray crystallography.

轴手性二醛与N-叔丁基亚磺酰胺缩合得到相应的亚胺，其为一对非对映异构体。N-叔丁基亚磺酰亚胺在二碘化钐条件下得到的偶联产物，经X-衍射也确定了其立体构型。

The results showed that the shape selective effect of the faujasite is obvious, and the thermodynamic balance exists between 2,6 DTBN and 2,7 DTBN.

结果表明，八面沸石对该反应过程有较好的择形催化作用，两种异构化产物(2 ，6 二叔丁基萘和 2 ，7 二叔丁基萘)之间存在着热力学平衡，即两种异构化产物可在酸性中心位上相互转化。

SM6 and SM7 of uncrystal were analyzed through GC-MS, the results showedthat SM6 main contained unsaturated fatty aldehyde with fragrance, i.e.-2,4-decadienal(58%), tetradecanoic acid (55.78%), 2-decenal(50%), Phthalic acid isobutylundecyl ester(47%), 2, 4-Decadienal(41%), 2-Undecenal (31%), 2-Methyl-Z,Z-3, 13-octadecadi-enol(18.84%), and SM7 contained saturation alkanes, i.e. 1, 2-Benzenedicarboxylic acid, butyl cyclohexyl ester(23.90%), Triacontane(22.63%),Nonacosane(21.04%), Heptadecane(18.84%), Octacosane(13.58%). Toxicological experiments were done to insure the pigment safety.

并对紫红丝膜菌色素非晶体部分的黄色油状物SM6和紫色粉末物SM7作了GC-MS分析，结果显示SM6中主要为具有香气成分的不饱和脂肪醛，其中含量较高的依次为：-2，4-癸二烯醛(58％)、十四烷酸(55.78％)、2-癸烯醛(50％)、邻苯二甲酸异丁基十一烷酯(47％)、2，4-癸二烯(41％)、2-十一碳烯醛(31％)、2-甲基-Z，Z-3，13-十八碳二烯酸(18.45％)等；SM7中主要为饱和直链烷烃，其中含量较高的依次为：1，2-苯二羧酸丁基环己酯(23.90％)、三十烷(22.63％)、二十九烷(21.04％)、十七烷(18.84％)、二十八烷(13.58％)。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。