申请人:AIR PRODUCTS AND CHEMICALS, INC.
公开号:EP0879837A1
公开(公告)日:1998-11-25
A polyurethane catalyst composition comprises N,N-bis(3-dimethylaminopropyl) urea and 3-dimethylaminopropyl urea in a ratio that can be varied to systematically control flowability, airflow, and force-to-crush physical properties for flexible polyurethane foam to enhance processibility. Increasing the N,N-bis(3-dimethylaminopropyl) urea to 3-dimethylaminopropyl urea ratio increases the airflow and decreases the force-to-crush values of the foam whereas decreasing the N,N-bis(3-dimethylaminopropyl) urea to 3-dimethylaminopropyl urea ratio improves the flowability of the foam.
一种聚氨酯催化剂组合物由 N,N-双(3-二甲基氨基丙基)脲和 3-二甲基氨基丙基脲组成,其比例可以改变,以系统控制软质聚氨酯泡沫的流动性、气流和挤压力物理性能,从而提高加工性能。提高 N,N-双(3-二甲基氨基丙基)脲与 3-二甲基氨基丙基脲的比例可增加气流,降低泡沫的挤压力值,而降低 N,N-双(3-二甲基氨基丙基)脲与 3-二甲基氨基丙基脲的比例则可改善泡沫的流动性。