Hawkins Douglas R.,Thompson Stephen D.,Van Dyk Antony K.
申请号：
US201615209788
公开号：
US10150852(B2)
申请日:
2016.07.14
申请国别(地区):
美国
年份:
2018
代理人:
Willis Reid S.
摘要：
The present invention relates to a composition comprising an aqueous solution of a hydrophobically modified alkylene oxide urethane polymer (HEUR), a bismuth salt, and at least one sediment abating compound selected from the group consisting of citric acid or a salt thereof, gluconic acid or a salt thereof, and a salt of ethylenediamine tetraacetic acid. The composition with the specific sediment abating compounds shows excellent abatement in sediment and color formation in heat age testing of the solution.
