Water dispersions of non-uniform polyurethane particles
    5.
    发明申请
    Water dispersions of non-uniform polyurethane particles 有权
    不均匀聚氨酯颗粒的水分散体

    公开(公告)号:US20050004306A1

    公开(公告)日:2005-01-06

    申请号:US10733027

    申请日:2003-12-11

    摘要: A novel method of preparing an aqueous dispersion of non-uniform polyurethane particles which comprises (a) preparing at least two isocyanate-terminated polyurethane prepolymers having different hydrophilicities; (b) preparing a uniform mixture of said prepolymers; and (c) dispersing the mixed prepolymers in an aqueous medium. The resulting dispersion of the prepolymers may optionally be chain extended. This method enables the preparation of core-shell particles as well as particles of other morphologies, including “raspberry”, interpenetrating network, “salt-and-pepper”, “ice-cream cone” and particles of gradient composition. Similarly, an aqueous dispersion of two different polyurethane polymers may be obtained by first preparing at least two different isocyanate-terminated polyurethane prepolymers, preparing a uniform mixture of such prepolymers and thereafter dispersing the mixture in an aqueous medium.

    摘要翻译: 一种制备非均匀聚氨酯颗粒的水性分散体的新方法,其包括(a)制备具有不同亲水性的至少两种异氰酸酯封端的聚氨酯预聚物; (b)制备所述预聚物的均匀混合物; 和(c)将混合的预聚物分散在水性介质中。 所得到的预聚物分散体可任选地进一步延伸。 这种方法能够制备核 - 壳颗粒以及其他形态的颗粒,包括“覆盆子”,互穿网络,“盐和胡椒”,“冰淇淋锥”和梯度组成颗粒。 类似地,可以通过首先制备至少两种不同的异氰酸酯封端的聚氨酯预聚物,制备这种预聚物的均匀混合物,然后将该混合物分散在水性介质中来获得两种不同聚氨酯聚合物的水分散体。

    Water dispersions of non-uniform polyurethane particles
    6.
    发明授权
    Water dispersions of non-uniform polyurethane particles 有权
    不均匀聚氨酯颗粒的水分散体

    公开(公告)号:US08242205B2

    公开(公告)日:2012-08-14

    申请号:US12546025

    申请日:2009-08-24

    摘要: A novel method of preparing an aqueous dispersion of non-uniform polyurethane particles which comprises (a) preparing at least two isocyanate-terminated polyurethane prepolymers having different hydrophilicities; (b) preparing a uniform mixture of said prepolymers, and (c) dispersing the mixed prepolymers in an aqueous medium. The resulting dispersion of the prepolymers may optionally be chain extended. This method enables the preparation of core-shell particles as well as particles of other morphologies, including “raspberry”, interpenetrating network, “salt-and-pepper”, “ice-cream cone” and particles of gradient composition. Similarly, an aqueous dispersion of two different polyurethane polymers may be obtained by first preparing at least two different isocyanate-terminated polyurethane prepolymers, preparing a uniform mixture of such prepolymers and thereafter dispersing the mixture in an aqueous medium.

    摘要翻译: 一种制备非均匀聚氨酯颗粒的水性分散体的新方法,其包括(a)制备具有不同亲水性的至少两种异氰酸酯封端的聚氨酯预聚物; (b)制备所述预聚物的均匀混合物,和(c)将混合的预聚物分散在水性介质中。 所得到的预聚物分散体可任选地进一步延伸。 这种方法能够制备核 - 壳颗粒以及其他形态的颗粒,包括“覆盆子”,互穿网络,“盐和胡椒”,“冰淇淋锥”和梯度组成颗粒。 类似地,可以通过首先制备至少两种不同的异氰酸酯封端的聚氨酯预聚物,制备这种预聚物的均匀混合物,然后将该混合物分散在水性介质中来获得两种不同聚氨酯聚合物的水分散体。

    Water Dispersions Of Non-Uniform Polyurethane Particles
    7.
    发明申请
    Water Dispersions Of Non-Uniform Polyurethane Particles 有权
    不均匀聚氨酯颗粒的水分散体

    公开(公告)号:US20100048765A1

    公开(公告)日:2010-02-25

    申请号:US12546025

    申请日:2009-08-24

    IPC分类号: C08L75/04

    摘要: A novel method of preparing an aqueous dispersion of non-uniform polyurethane particles which comprises (a) preparing at least two isocyanate-terminated polyurethane prepolymers having different hydrophilicities; (b) preparing a uniform mixture of said prepolymers, and (c) dispersing the mixed prepolymers in an aqueous medium. The resulting dispersion of the prepolymers may optionally be chain extended. This method enables the preparation of core-shell particles as well as particles of other morphologies, including “raspberry”, interpenetrating network, “salt-and-pepper”, “ice-cream cone” and particles of gradient composition. Similarly, an aqueous dispersion of two different polyurethane polymers may be obtained by first preparing at least two different isocyanate-terminated polyurethane prepolymers, preparing a uniform mixture of such prepolymers and thereafter dispersing the mixture in an aqueous medium.

    摘要翻译: 一种制备非均匀聚氨酯颗粒的水性分散体的新方法,其包括(a)制备具有不同亲水性的至少两种异氰酸酯封端的聚氨酯预聚物; (b)制备所述预聚物的均匀混合物,和(c)将混合的预聚物分散在水性介质中。 所得到的预聚物分散体可任选地进一步延伸。 这种方法能够制备核 - 壳颗粒以及其他形态的颗粒,包括“覆盆子”,互穿网络,“盐和胡椒”,“冰淇淋锥”和梯度组成颗粒。 类似地,可以通过首先制备至少两种不同的异氰酸酯封端的聚氨酯预聚物,制备这种预聚物的均匀混合物,然后将该混合物分散在水性介质中来获得两种不同聚氨酯聚合物的水分散体。

    Water dispersions of non-uniform polyurethane particles
    9.
    发明授权
    Water dispersions of non-uniform polyurethane particles 有权
    不均匀聚氨酯颗粒的水分散体

    公开(公告)号:US07582698B2

    公开(公告)日:2009-09-01

    申请号:US10733027

    申请日:2003-12-11

    摘要: A novel method of preparing an aqueous dispersion of non-uniform polyurethane particles which comprises (a) preparing at least two isocyanate-terminated polyurethane prepolymers having different hydrophilicities; (b) preparing a uniform mixture of said prepolymers; and (c) dispersing the mixed prepolymers in an aqueous medium. The resulting dispersion of the prepolymers may optionally be chain extended. This method enables the preparation of core-shell particles as well as particles of other morphologies, including “raspberry”, interpenetrating network, “salt-and-pepper”, “ice-cream cone” and particles of gradient composition. Similarly, an aqueous dispersion of two different polyurethane polymers may be obtained by first preparing at least two different isocyanate-terminated polyurethane prepolymers, preparing a uniform mixture of such prepolymers and thereafter dispersing the mixture in an aqueous medium.

    摘要翻译: 一种制备非均匀聚氨酯颗粒的水性分散体的新方法,其包括(a)制备具有不同亲水性的至少两种异氰酸酯封端的聚氨酯预聚物; (b)制备所述预聚物的均匀混合物; 和(c)将混合的预聚物分散在水性介质中。 所得到的预聚物分散体可任选地进一步延伸。 这种方法能够制备核 - 壳颗粒以及其他形态的颗粒,包括“覆盆子”,互穿网络,“盐和胡椒”,“冰淇淋锥”和梯度组成的颗粒。 类似地,可以通过首先制备至少两种不同的异氰酸酯封端的聚氨酯预聚物,制备这种预聚物的均匀混合物,然后将该混合物分散在水性介质中来获得两种不同聚氨酯聚合物的水分散体。