发明申请
US20070141264A1 Stain resistant urethane-vinyl aqueous coating compositions 有权
耐污染的聚氨酯 - 乙烯基水性涂料组合物

Stain resistant urethane-vinyl aqueous coating compositions
摘要:
An aqueous coating composition, which when in the form of a film exhibits an MVTR of ≦500 g/m2/24 h comprising 20 to 80 wt % of a polyurethane A with an acid value of 8 to 40 mg KOH/g and a hard segment content ≧40 wt %, a ring structure content ≧48 wt % and 80 to 20 wt % of a vinyl polymer B with a Tg≧20° C.
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