丙二醇

As a professional sales company, to meet customer demand, we need a stable supply of quality and quantity, so we and the international well-known chemical companies: ExxonMobil, Shell, BASF, Leander, Mitsubishi Chemical to establish a good cooperation relations; more access Jinxi Natural Gas Chemical Co., Ltd. dimethyl carbonate, propylene glycol, methanol and other products qualified agent.

作为专业的销售公司，满足客户的需求，我们必需稳定保质保量的供应，所以我们与国际知名化工公司：埃克森美孚、壳牌、巴斯夫、利安德、三菱化学建立良好的合作关系；更获得锦西天然气化工有限公司碳酸二甲酯、丙二醇、甲醇等产品代理资格。

The strongly acidic cation exchange resin catalyzed synthesis of fructone-B by the reaction of ethyl acetoacetate and 1,2-propanediol was studied.

以硫酸高铈铵为催化剂，通过乙酰乙酸乙酯分别与乙二醇和1，2-丙二醇反应合成了苹果酯-A和苹果酯-B，研究了催化剂等有关因素对产品收率的影响。

The castor oil based polyurethane potting materials were synthesized from castor oil,4,4 diphenylmethane diisocyanate,trimethylolpropane and 1,2 propanediol.

以蓖麻油，4，4' -二苯基甲烷二异氰酸酯、三羟甲基丙烷与 1，2 -丙二醇为原料合成了蓖麻油基聚氨酯灌封胶，研究了灌封胶的固化流变行为和凝胶化时间。

In this paper, synthetic process of PTT and cationic dyeable PTT was studied, including molar ratio, catalyst concentration, reaction time and temperature, types of antioxidants in the esterification reaction and the condensation reaction.

研究了聚对苯二甲酸丙二醇酯、阳离子染料可染PTT的合成工艺条件中各因素对酯化及缩聚反应的影响，包括单体物质的量比、催化剂浓度、反应时间和温度、抗氧剂种类等。

Specifications / physical data on the physical characteristics: Composition: propylene glycol monomethyl ether, surfactant, water, and other proprietary components.

规格/物理数据物理特征：成分：二丙二醇单甲醚，表面活性剂，水，其他专有成分。

It is prepared through preparing the materials including alpha-silicon nitride crystal whisker, deionized water as solvent, polyethylene imine as dispersant, PVA as adhesive, propylene glycol as plasticizer and ammonium tetramethyl chloride to regulate pH value; mixing; twice ball milling and post-treatment.

所述浆料的制备方法是：加入α-氮化硅晶须，以去离子水为溶剂，以聚乙烯亚胺为分散剂，聚乙烯醇作为粘结剂，丙二醇作为增塑剂；加入四甲基氯化铵来调节料浆的pH值；制备步骤包括配料、混合、两次球磨及后处理工序。

The invention provides a foliar fertilizer specially used for Chinese gooseberries, which has the functions of cold resistance and consists of the following raw materials according to weight percentage: 0.1 to 8 percent of DMSO, 0.05 to 5 percent of trimethylene glycol, 0.05 to 5 percent of salicylic acid, 0.05 to 2 percent of compound ammonium nitrate, 1 to 15 percent of humic acid, 0.5 to 10 percent of chitosan, 1 to 10 percent of citric acid, 2 to 15 percent of urea, 1 to 10 percent of borax, 1 to 20 percent of zinc sulfate, 0.5 to 10 percent of ferrous sulfate, 0.05 to 5 percent of ammonium molybdate, 1 to 15 percent of manganese sulfate, 0.1 to 2 percent of SDBS and 35 to 80 percent of water.

本发明提供一种具有抗寒作用的猕猴桃专用叶面肥，它由下述各组分重量百分比的原料组成：二甲基亚砜0.1％～8％、丙二醇0.05％～5％、水杨酸0.05％～5％、复硝铵0.05％～2％、腐殖酸1％～15％、壳聚糖0.5％～10％、柠檬酸1％～10％、尿素2％～15％、硼砂1％～10％、硫酸锌1％～20％、硫酸亚铁0.5％～10％、钼酸铵0.05％～5％、硫酸锰1％～15％、十二烷基苯磺酸钠 0.1％～2％、水35％～80％。

A silver ion selective electrode was prepared and characterized with trimethylene bis (N-ethyl-N-phenyldithiocarbamate) as ionophore.

制备并考察了以双（N-乙基－N-苯基氨基二硫代甲酸）1，3-丙二醇酯为载体的银离子选择电极的性能。

EXCIPIENTS AND VEHICLE: Propylene glycol, polysorbate 80 aid in product formulation.

赋形剂和车辆：丙二醇，聚山梨醇酯80援助产品配方。

The enhancement ability of four different enhancers such as azone, propylene glycol,oleic acid and lauryl alcohol,was investigated when used either uniquely or combinatively each other at random.

对氮酮、丙二醇、油酸、月桂醇4种透皮吸收促进剂单独应用和任意2种合用的促渗效果进行考察。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。