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1·UV Stabilized Acetal Homopolymer, Black, Medium Viscosity.

紫外被稳定的缩醛均聚物，黑色，中等黏度。

2·OBJECTIVE To synthesize 4-chlorobutanal acetal by improved method.

目的改进4-氯丁醛缩醛的合成方法。

3·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%。

4·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。

5·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。

6·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。

7·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。

8·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。

9·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%。

10·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。

缩醛

1·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。

2·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。

3·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。

4·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。

5·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。