多元醇

Glycerol polyether 3010, tolylene diisocyanate , 1,4-butanediol and catalysts are used as raw materials to preparecasting polyurethane elastomer in one step.

以聚醚多元醇3010，甲苯二异氰酸酯，1，4-丁二醇和催化剂为原料，采用一步法来制备浇注型聚氨酯弹性体。

The present invention relates to processes for the production of purified, moderately esterified polyol fatty acid polyesters and the compositions derived from those processes.

用于制备适度酯化的纯化多元醇脂肪酸聚酯的方法和由那些方法制得的组合物。

Consist of gallic acid and hexahydroxydiphenic acid and their derivatives esterified with glucose.

这是一类由酚酸及其衍生物与葡萄糖或多元醇通过甙键或酯键而形成的化合物。

Thermogravimetry shows the product has good thermal stability,and preponderates over the thermal stability of the contrast oleate and liquid paraffin wax.

多元醇酯不仅具有较好的生物降解性能，而且具有良好的氧化安定性、热稳定性、优良的粘温特性和良好的润滑性能[1]，在化

The effects of particle size distribution and particle figure on the viscosities of polymer polyol s were studied.

分析了聚合物多元醇中分散粒子的粒径分布和粒子形状对体系黏度的影响，通过计算提出了获得低黏度产品的工艺配方及控制条件。

Sorbinil increased the PKC activity of cell plasm and decreased the PKC activity of cell membrane, while benazepril and glurenorm did not have effect on the PKC activity.

Sorbinil可通过改善多元醇代谢而降低PKC活性，同时，亦或存在其它途径如直接对PKC的抑制作用等等。

The method adopts powders (10.0 parts of mass) of crop straws and phenols or polyalcohol compound (10 to 100 parts of mass) which is firstly pre-heated by 10 to 30 minutes under a temperature of 30 to 200 DEG C with the effect of acid catalyst (0.5 to 10 parts of mass) for a reaction of 30 to 240 minutes; after the reaction, the compound is washed, neutralized, filtered and dried to obtain a solid appearing as a color from citron yellow, yellow, bight brown to seal brown; wherein, the solid includes 64.0 to 70,0 percent of fibrin and 4.1 to 7.6 percent of lignin.

秸秆&液化&预处理制备生产燃料乙醇原料的方法，是用农作物秸秆的粉末(10.0质量份)和酚类或多元醇类化合物(10～100质量份)，在酸性催化剂(0.5～10质量份)存在下，在30～200℃温度下预热10～30min后，反应30～240min，反应完毕进行洗涤、中和、过滤和干燥而得呈淡黄色-黄色-浅褐色至深褐色固体，其中，纤维素含量64.0～70.0％，木质素含量4.1～7.6％。

The synthetic reactions of sobitol acetals from sobitol and benzadehyde were considered being exothermic according to the bond energy changes of the reaction and the reaction mechanisms were described.

介绍了多元醇缩醛类成核剂的发展历程和合成工艺。从键能变化的角度分析了反应的热效应，认为在标准状态下该反应属于放热反应。

The total production capacify is 130,000 t/y for PO plant and 110,000 t/y for PPG plant , PO is an important organic chemical materially not only can be used for the production of production of pilules and furthermore for the pr addiction of pilules and furthermore for the production of polyurethane (including rigid foam , flexible foam and elastomer etc), but also can be used for the production of non-ionic surfactant , oil-field hard emulsifier , flame inhibitor , pesticide e,I;sofoer

环氧丙烷是一种重要的有机化工原料，它不仅可以生产聚醚多元醇，进而生产聚醚酯等，它还可以生产非离子型表面活性剂、油田破乳剂、阻燃剂、农药乳化剂和润湿剂等。

At least a portion of the high equivalent weight polyol is a polyester containing hydroxymethyl groups.

高当量多元醇的至少一部分为含有羟甲基基团的聚酯。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。