公开(公告)号：US5866656A

公开(公告)日：1999-02-02

申请号：US937242

申请日：1997-09-08

申请人： Ju-Ming Hung ,  James W. Nowicki ,  George A. Hespe ,  Paul P. Puletti

发明人： Ju-Ming Hung ,  James W. Nowicki ,  George A. Hespe ,  Paul P. Puletti

IPC分类号： C08F8/30 ,  C08G18/40 ,  C08G18/62 ,  C08J3/00 ,  C08K3/00 ,  C08L75/00

CPC分类号： C08G18/6229 ,  C08F8/30 ,  C08G18/4063 ,  C08G2170/20

摘要： A solvent-free one-part hot melt polyurethane adhesive or sealant composition which is solid at room temperature comprising 10 to 70% by weight of a urethane prepolymer having an isocyanate content of 0.25 to 15% and an isocyanate index greater than 1 and 30 to 90% by weight of an ethylenically unsaturated polymer having a number average molecular weight of 4,000 to 15,000 as determined by Gel Permeation Chromatography using a PL Gel,Mixed 10 micron column, a Shimadzu Model RID 6A Detector with a tetrahydrofuran carrier solvent at a flow rate of 1 milliliter per minute, the polymer containing sufficient hydroxyl functionality to provide an OH number of 5 to 15.

摘要翻译： 无溶剂的单组分热固性聚氨酯粘合剂或密封剂组合物，其在室温下为固体，包含10至70重量％的异氰酸酯含量为0.25至15重量％，异氰酸酯指数大于1至30重量％ 90重量％的数均分子量为4,000至15,000的烯键式不饱和聚合物，通过使用PL凝胶，混合10微米柱，Shimadzu Model RID 6A检测器的凝胶渗透色谱法，使用四氢呋喃载体溶剂，流速 1分钟，该聚合物含有足够的羟基官能度以提供5至15的OH值。