UV Stabilized Acetal Homopolymer, Black, Medium Viscosity.

紫外被稳定的缩醛均聚物，黑色，中等黏度。

OBJECTIVE To synthesize 4-chlorobutanal acetal by improved method.

目的改进4-氯丁醛缩醛的合成方法。

Under these conditions, the yield of butyraldehyde glycol acetal is 71.1%.

在此反应条件下，丁醛乙二醇缩醛的收率可达71.1%。

To develop a synthetic route of 4 (N, N dimethylamino)butanal diethyl acetal .

探讨4 - （N，N-二甲胺基）丁醛缩二乙醇的合成路线。

The reaction of phenol, xylene—formaldehyde resin with boric acid gets an acetal resin.

苯酚、二甲苯缩甲醛树脂及硼酸反应生成缩醛树脂。

Synthesis of benzaldehyde glycol acetal catalyzed by strong-acid cation-exchange resin;

用无水硫酸铜作催化剂，在微波辐射下催化合成苯甲醛乙二醇缩醛。

Among the more important are nylon, acetal resins, polycarbonate resins, and ABS resins.

较重要的有尼龙、缩醛树脂、聚碳酸酯树脂和ABS树脂。

Diisobutyl acetal was synthesized by the condensation of paraldehyde and iso-butyl alcohol.

以三聚乙醛和异丁醇为原料，合成了二异丁基乙缩醛。

The yield of benzaldehyde glycol acetal was above 87.7% with zinc methanesulfonate as catalyst.

当以甲基磺酸锌为催化剂时，苯甲醛缩乙二醇的收率可达87.7%。

Phase transfer catalyst was used for synthesis of citral diethyl acetal, the yield has increased.

用相转移催化合成了柠檬醛二乙缩醛，提高了产率。

Synthesis of benzaldehyde ethylene glycol acetal under microwave irradiation catalyzed by sulfate;

用无水硫酸铜作催化剂，在微波辐射下催化合成苯甲醛乙二醇缩醛。

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。

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。

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 synthetic method of acetylacetaldehyde dimethyl acetal suitable for the industrialization was introduced.

介绍了适合工业化的乙酰乙醛缩二甲醇合成路线。

The compositions include an aqueous alkaline solvent soluble phenolic resin or poly (vinyl acetal) as a polymeric binder.

该组合物包括含水碱性溶剂可溶性酚醛树脂或聚(乙烯醇缩醛)作为聚合物粘结剂。

Specifications for particular types of winding wires - Part 14 : polyvinyl acetal enamelled round aluminium wire, class 105.

特种绕组线规范。第14部分：聚乙烯醇漆绝缘的圆铝线，等级105。

The synthesis of furfural glycol acetal from furfural and ethylene glycol in the presence of ion exchange resin was investigated.

本文研究了在离子交换树脂存在下，由糠醛和乙二醇反应制备糠醛缩乙二醇的工艺条件。

The results showed that the catalyst, with calcium phosphate as the main part, is active and selective in the splitting of acetal.

实验结果表明：以磷酸钙为主体的催化剂对缩醛裂解反应具有较高的活性和选择性。

A novel family of ester acetal molecular glass materials has been created by the reaction between monocarboxylic acid and divinyl ethers.

通过一元羧酸和二乙烯基醚的反应，我们得到了一种新颖的酯缩醛结构分子玻璃。

Various aromatic diacids and various divinyl ether compounds are heated to react in organic solvent to obtain novel ester acetal polymers.

各种芳香二酸和各种二乙烯基醚化合物在有机溶剂存在下加热反应得到新型的酯缩醛聚合物。

Citral 1, 2-propanediol acetal was synthesized using citral and 1, 2-propanediol as raw materials and copper methanesulfonate as catalyst.

以柠檬醛和1,2 -丙二醇为原料，甲基磺酸铜为催化剂，合成了柠檬醛缩1,2 -丙二醇。

The invention relates to various aromatic diacid ester acetal polymers and a synthesis method of the aromatic diacid ester acetal polymers.

本发明涉及各种芳香二酸酯缩醛聚合物及其合成方法。

And we also study the acetal structure and its influence of thermal stability of polyvinyl acetal which was used as toughening agent and tackifier.

并对作为增韧剂和增粘剂的聚乙烯醇缩醛的缩醛结构对其热稳定性的影响进行了分析。

Experiments were performed on the influences of the concentration of poly (vinyl acetal) and temperature on pure water flux and rejection of membranes.

实验又考察了聚乙烯醇缩乙醛浓度、铸膜液温度、凝固浴温度和盐含量以及添加剂含量等因素对膜纯水通量和截留率的影响。

Using concentrated H_2SO_4 modified coal based activated carbon as catalyst, benzylaldehyde glycol acetal was synthesized from benzylaldehyde and glycol.

以浓硫酸改性煤基活性炭为催化剂，以苯甲醛和乙二醇为原料合成苯甲醛乙二醇缩醛的反应条件进行了研究。

METHODS:N (2,2 dimethoxylethyl)guanidine sulfate from aminoacetaldehyde dimethyl acetal was treated with concentrated HCl to get 2 aminoimidazole sulfate.

方法：以氨基乙醛缩甲醇制备的N （2 ，2 二甲氧基乙基）胍硫酸盐经盐酸催化环合制得2 氨基咪唑硫酸盐。

The butyraldehyde 1, 2-propanediol acetal is synthesized from the acetalization reaction of butyraldehyde and 1, 2-propanediol, and used iodine as catalysis.

以单质碘为催化剂，通过丁醛和1,2丙二醇反应合成了丁醛1,2丙二醇缩醛。

Benzaldehyde ethylene glycol acetal was directly synthesized from benzaldehyde and ethylene glycol under microwave irradiation with cupric sulfate as catalyst.

用无水硫酸铜作催化剂，在微波辐射下催化合成苯甲醛乙二醇缩醛。

The authors find that the addition of appropriate amount of acetaldehyde to replace a part of formaldehyde distinctly improves the properties of the acetal adhesive.

作者发现，在反应中加入适量乙醛代替部分甲醛、可明显提高缩醛胶的性能。