PROCESS FOR PRODUCING A POLYURETHANE FOAM AND POLYURETHANE FOAM OBTAINABLE THEREFROM
    1.
    发明申请
    PROCESS FOR PRODUCING A POLYURETHANE FOAM AND POLYURETHANE FOAM OBTAINABLE THEREFROM 审中-公开
    生产聚氨酯泡沫的方法和可获得的聚氨酯泡沫

    公开(公告)号:US20150232629A1

    公开(公告)日:2015-08-20

    申请号:US14703064

    申请日:2015-05-04

    IPC分类号: C08J9/00

    摘要: A process for producing a polyurethane foam with bimodal cell size distribution, comprising the following steps: providing a mixture in a mixing head, where the mixture comprises: A) a component reactive towards isocyanates; B) a surfactant component; C) a blowing agent component selected from the group consisting of linear, branched or cyclic C1- to C6-alkanes, linear, branched or cyclic C1- to C6-fluoroalkanes, N2, O2, argon and/or CO2, where blowing agent component C) is present in the supercritical or near-critical state; D) a polyisocyanate component; discharging the mixture comprising components A), B), C), and D) from the mixing head where, during the discharge of the mixture, the pressure prevailing in the mixture is lowered to atmospheric pressure.

    摘要翻译: 一种制备具有双峰电池尺寸分布的聚氨酯泡沫体的方法,包括以下步骤:在混合头中提供混合物,其中所述混合物包含:A)对异氰酸酯反应的组分; B)表面活性剂组分; C)选自直链,支链或环状C 1至C 6烷烃,直链,支链或环状C 1至C 6 - 氟代烷烃,N 2,O 2,氩和/或CO 2的发泡剂组分,其中发泡剂组分 C)存在于超临界或近临界状态; D)多异氰酸酯组分; 从混合头排出包含组分A),B),C)和D)的混合物,其中在混合物排出期间,混合物中的压力降低至大气压。