公开(公告)号：US06383324B1

公开(公告)日：2002-05-07

申请号：US09448125

申请日：1999-11-24

申请人： David E. Vietti ,  Stephen J. Hobbs ,  Keith B. Potts ,  Arlene C. Hanson

发明人： David E. Vietti ,  Stephen J. Hobbs ,  Keith B. Potts ,  Arlene C. Hanson

IPC分类号： B32B1700

CPC分类号： C08G18/0885 ,  C08G18/56 ,  C08G18/6453 ,  C08G2190/00 ,  Y10T428/31533

摘要： An insulated glass sealant having the best characteristics of polysulfides and polyurethanes rather than the worst is made from a polysulfide-based polyurethane prepared by a one-step procedure wherein a randomly copolymeric hydroxyl-terminated polysulfide polyacetal is reacted with a polyisocyanate at a ratio of from about 1:1 to about 1:1.2 on an equivalents basis. The copolymeric hydroxyl-terminated polysulfide polyacetal is made by the condensation of formaldehyde with a mixture of a dithiodialkylene glycol and an aliphatic or cycloaliphatic diol.

摘要翻译： 具有多硫化物和聚氨酯的最佳特性而不是最差的绝缘玻璃密封剂由通过一步法制备的多硫化物基聚氨酯制备，其中无规共聚的羟基封端的多硫化物聚缩醛与多异氰酸酯以 约1：1至约1：1.2。 共聚羟基封端的多硫化物聚缩醛是通过甲醛与二硫代二亚烷基二醇和脂族或脂环族二醇的混合物的缩合形成的。