公开(公告)号：US5932648A

公开(公告)日：1999-08-03

申请号：US712402

申请日：1996-09-11

申请人： James Louis Troska ,  Larry McArthur Kegley ,  William Brian Dances

发明人： James Louis Troska ,  Larry McArthur Kegley ,  William Brian Dances

IPC分类号： C09J153/02 ,  C08L53/02

CPC分类号： C09J153/02

摘要： A low viscosity, low VOC content fumigation adhesive formulation which is comprised ofa) 100 parts by weight (pbw) of a blend of a styrene-diene triblock copolymer, hydrogenated or unhydrogenated, having a weight average molecular weight of 30,000 to 200,000 and a polystyrene content of from 10 to 40% by weight of the polymer, and a styrene-diene diblock copolymer having a weight average molecular weight of 10,000 to 40,000 and a polystyrene content of from 10 to 40% by weight of the polymer, wherein the diblock comprises from 60 to 95% by weight of the polymer blend,b) 75 to 275 parts by weight (pbw) of a tackifying resin which is compatible with the diene blocks, andc) 50 to 200 parts by weight (pbw) of a solvent for the polymer.In its preferred embodiment, the invention is the use of SI diblock polymer with a much smaller amount of conventional SEBS or SEPS triblock polymer to produce an extremely low viscosity product which can be processed in the type of equipment presently in use by fumigation adhesive manufacturers and satisfies the VOC standard of 250 grams per liter or less.

摘要翻译： 低粘度，低VOC含量的熏蒸粘合剂制剂，其由以下组成：a）100重量份（pbw）重均分子量为30,000至200,000的氢化或未氢化的苯乙烯 - 二烯三嵌段共聚物的共混物和 聚苯乙烯含量为10〜40重量％，聚苯乙烯 - 二烯二嵌段共聚物的重均分子量为10,000〜40,000，聚苯乙烯含量为聚合物重量的10〜40重量％，其中二嵌段 包含60至95重量％的聚合物共混物，b）75至275重量份（pbw）与二烯嵌段相容的增粘树脂，和c）50至200重量份（pbw）的 溶剂用于聚合物。 在其优选的实施方案中，本发明是使用具有少量常规SEBS或SEPS三嵌段聚合物的SI二嵌段聚合物来生产极低粘度的产品，其可以在目前使用的熏蒸胶粘剂制造商的设备类型中进行加工， 满足VOC标准250克/升或更低。