1.The heptanal butyl mercaptal was synthesized with heptanal, sodium thiosuifate and 1bromobutane as raw materials.

1.以正庚醛、硫代硫酸钠溴代正丁烷为原料,正庚醛正丁硫醇缩醛。

2.In stead of using butyl nitrite and absolute ethyl-ether as reagents,in an improved method,cupferron.

2.本文介绍以亚硝酸乙酯代替亚硝酸丁酯,用氯苯代替无水乙醚铜铁试剂的新工。

3.The bulk and solution photopolymerization of vinyl butyl ether were studied using diph-enyl-4-thiophenoxyphenyl sulfonium salt (DPTS) as photoinitiator.

3.以二苯-4-苯硫代苯硫鎓盐(DPTS)为光引发剂,研究乙烯正丁醚的本体溶液光聚。

4.Phragmoplast of coil coating has been prepared by free radical polymerization and by using acrylic acid,methyl methacrylate,butyl acrylate as the raw materials.

4.以丙烯酸、丙烯酸丁酯丙烯酸酯为单体,采用自由聚法制备聚丙烯酸卷材涂料前驱膜物,获得适宜的制备工条件。

5.N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

5.以邻氯苯酸对乙氧苯胺为原料,经过胺的苯化、二芳胺的环化、N-烷化、硫代化反应N-丁-2-乙氧硫代吖啶酮。

6.The technical advantages and disadvantages of natural rubber liner, chloroprene rubber liner, precuring butyl rubber liner and room temperature self-vulcanization butyl rubber liner are compared.

6.对比天然橡胶衬里、氯丁橡胶衬里、预硫化丁橡胶衬里、室温自硫化丁橡胶衬里的技术优缺点。

7.The main materials we used are including silicone rubber, fluorubber, natural rubber, neoprene rubber, EPDM, butyl rubber, polyurethane, polyethylene, EVA, ABS, PP, and PVC.

7.使用的原料有硅橡胶、氟橡胶、天然橡胶、氯丁橡胶、三元乙丙橡胶、丁橡胶、聚氨脂橡胶、聚乙烯、聚丙烯、EVA、ABS、PP、PVC等。

8.In this paper, the PVA of major component in the Sensitized emulsion was modified by the polyreaction with formaldehyde, butyl aldehyde, furfural and alcohol.

8.用醛、丁醛、糠醛对重氮感光胶中的主要分聚乙烯醇进行改性,以增强感光胶的耐水性耐磨性。