公开(公告)号：US5466094A

公开(公告)日：1995-11-14

申请号：US180951

申请日：1994-01-13

申请人： Norman R. Kirby ,  Richard S. Schmidt

发明人： Norman R. Kirby ,  Richard S. Schmidt

IPC分类号： C08G18/08 ,  E02D5/22 ,  E04H12/22 ,  F02D7/00

CPC分类号： C08G18/08 ,  E02D5/226 ,  E04H12/2292

摘要： An improvement in the known method of setting or resetting poles in the ground or ground line protection of encapsulation of pole treatment chemicals in the ground and enhancement of the strength, density, ratio of foam polyurethane resins formed in-situ from polyisocyanate and resin reactive therewith. Ground water and detrimental natural soil chemicals are often encountered in pole setting and affect polyurethane foam formation by undesirably reacting with the polyurethane to give a foam of insufficient density and strength. This improvement comprises stabilizing the highly reactive isocyanate component by pre-reacting to form a prepolymer. This composition decreases the cost per unit of foam per pole installation. There is also the method for the addition to the polyurethane composition of various repellant materials and preservative agents for the pole.

摘要翻译： 在地面或地面线上设置或复位极点的已知方法的改进，以保护地面中极性处理化学品的包封，并提高由多异氰酸酯原位形成的泡沫聚氨酯树脂的强度，密度，与其反应的泡沫聚氨酯树脂的比例 。 经常遇到地下水和有害的天然土壤化学物质，并且通过与聚氨酯不合需要地反应而产生不足够的密度和强度的泡沫，从而影响聚氨酯泡沫形成。 这种改进包括通过预反应形成预聚物稳定高反应性异氰酸酯组分。 这种组合降低了每极安装的单位泡沫成本。 另外还有添加各种排斥材料的聚氨酯组合物和极的防腐剂的方法。