该成膜剂优选在允许该聚氨酯成膜剂同时或几乎同时去封端和固化的温度下去封端。
The blocking agent preferably de-blocks at a temperature that permits simultaneous or nearly simultaneous de-blocking and curing of the polyurethane film former.
本文设计采用水性聚氨酯为基本成膜剂，并对其进行改性，满足产品的性能要求。
Polyurethane is designed as basic resin and improved from its basic properties to satisfy command from new leather products.
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