申请人:THE BOEING COMPANY
公开号:US10189925B2
公开(公告)日:2019-01-29
A polysulfide material having reactive vinyl end groups and a method of making a vinyl end-capped polysulfide material are described. The vinyl end-capped polysulfide material has potential applications as a sealant, an adhesive, a coating, a caulking, or the like. In a specific example, the polysulfide material may be used as a precursor material for a sealant resin in the manufacturing of an integral fuel tank of an aircraft. An example method for making polysulfide materials includes contacting a vinyl-functionalized aryl halide and/or a vinyl-functionalized heteroaryl halide with dithiols and/or trithiols in the presence of an organic solvent.
本文描述了一种具有活性乙烯基末端基团的聚硫材料和一种乙烯基末端封端的聚硫材料的制造方法。乙烯基封端聚硫材料可用作密封剂、粘合剂、涂料、填缝剂等。在一个具体的例子中,聚硫材料可用作制造飞机整体油箱的密封树脂的前体材料。制造聚硫材料的一种示例方法包括在有机溶剂存在下,将乙烯基官能化芳基卤化物和/或乙烯基官能化杂芳基卤化物与二硫醇和/或三硫醇接触。