POLYURETHANE BASED SYNTHETIC LEATHERS COMPRISING NANOPARTICLES AND HAVING IMPROVED PEEL STRENGTH
    1.
    发明申请
    POLYURETHANE BASED SYNTHETIC LEATHERS COMPRISING NANOPARTICLES AND HAVING IMPROVED PEEL STRENGTH 审中-公开
    基于聚氨酯的合成皮革包含纳米颗粒并具有改进的皮肤强度

    公开(公告)号:US20150259851A1

    公开(公告)日:2015-09-17

    申请号:US14431533

    申请日:2012-10-16

    IPC分类号: D06N3/14 D06N3/12 D06N3/00

    摘要: Disclosed herein are methods of producing externally stabilized, poromeric synthetic leathers having improved peel strength, the methods comprising: preparing a prepolymer from a mixture comprising at least one polyester polyol, at least one polyether polyol, at least one isocyanate and optionally in a solvent; mixing the prepolymer, water, and a first surfactant; optionally add a second chain extender to form a PUD; preparing a mixture comprising said PUD, at least one surfactant, and at least one thickener; frothing said mixture; applying the frothed mixture to a fabric and thereby forming a coated fabric; adjusting the thickness of the frothed mixture on the coated fabric; drying the coated fabric. Methods of improving the peel strength of poromeric synthetic leathers are also disclosed. Externally stabilized synthetic leathers having improved peel strength are also disclosed.

    摘要翻译: 本文公开了制备具有改善的剥离强度的外部稳定的,具有改性的聚酯合成革的方法,所述方法包括:由包含至少一种聚酯多元醇,至少一种聚醚多元醇,至少一种异氰酸酯和任选在溶剂中的混合物制备预聚物; 混合预聚物,水和第一表面活性剂; 任选地加入第二扩链剂以形成PUD; 制备包含所述PUD,至少一种表面活性剂和至少一种增稠剂的混合物; 发泡混合物; 将发泡混合物施加到织物上,从而形成涂布织物; 调节涂布织物上发泡混合物的厚度; 干燥涂层织物。 还公开了改善外用合成革的剥离强度的方法。 还公开了具有改善的剥离强度的外部稳定的合成皮革。

    A TACKIFIER AND A CONTINUOUS PROCESS FOR PRODUCING THE TACKIFIER

    公开(公告)号:US20170313913A1

    公开(公告)日:2017-11-02

    申请号:US15522431

    申请日:2014-10-31

    摘要: A rosin dispersion is a reaction product of, by dry weight based on total dry weight of the rosin dispersion, from 80% to 98% a rosin resin, and from 2% to 20% a dispersant. The rosin resin is processed by at least one method of a) modification, b) hydrogenation or disproportionation, and c) polymerization or esterification from raw material rosins. The dispersant is selected from C18-C32 aliphatic carboxylic acids, olefin (meth) acrylic acid copolymers, and other acid/anhydride modified polymers. A continuous process for preparing the rosin dispersion and an adhesive formulation comprising the rosin dispersion are also included.