DYNAMIC UREA BONDS FOR REVERSIBLE AND SELF-HEALING POLYMERS
    3.
    发明申请
    DYNAMIC UREA BONDS FOR REVERSIBLE AND SELF-HEALING POLYMERS 有权
    用于可逆和自我治疗聚合物的动态尿素债券

    公开(公告)号:US20160032054A1

    公开(公告)日:2016-02-04

    申请号:US14776104

    申请日:2014-03-14

    摘要: The disclosure provides reversible polymers from polyurea by modifying the nitrogen atom with hindered substituents. The reversibility of hindered urea bond (HUB) can be controlled by changing the bulkiness of the substituents, and N-tert-butyl-N-ethylurea (TBEU), with its high binding constant and short lifetime, is applicable in the design of reversible polymer and self-healing materials at mild temperatures without external stimuli. HUB can be used in the design of smart materials with its adjustable reversibility, facile synthesis, and compatibility with many other polymer structures.

    摘要翻译: 本公开通过用受阻的取代基修饰氮原子提供了来自聚脲的可逆聚合物。 受阻脲键(HUB)的可逆性可以通过改变取代基的体积来控制,具有高结合常数和短寿命的N-叔丁基-N-乙基脲(TBEU)可应用于可逆的 聚合物和自愈材料在温和的温度下无外部刺激。 HUB可用于智能材料的设计,具有可调节的可逆性,易于合成,以及与许多其他聚合物结构的相容性。

    PROCESS FOR THE PRODUCTION OF SPRAY POLYURETHANE ELASTOMERS AND THE ELASTOMERS PRODUCED BY THIS PROCESS
    6.
    发明申请
    PROCESS FOR THE PRODUCTION OF SPRAY POLYURETHANE ELASTOMERS AND THE ELASTOMERS PRODUCED BY THIS PROCESS 有权
    生产喷雾聚氨酯弹性体和本方法生产的弹性体的方法

    公开(公告)号:US20140275416A1

    公开(公告)日:2014-09-18

    申请号:US13836362

    申请日:2013-03-15

    发明人: John W. Jenny

    IPC分类号: C08K3/00 C08K3/30

    摘要: Polyurethane elastomers having solids contents greater than 40% by weight are produced from a sprayable polyurethane-forming system composed of an isocyanate component and an isocyanate-reactive component. The isocyanate component has a solids content of from 40 to 80 wt. %, based on total weight of isocyanate component and is made up of at least one aromatic polyisocyanate having an NCO content of from 24 to 33%, a functionality of from 2 to 3 and at least one solid filler. The isocyanate-reactive component has a solids content of from 40 to 80 wt. %, based on total weight of the isocyanate-reactive component and is composed of at least one polyether polyol having a hydroxyl number of from 25 to 40 and a functionality of from 2 to 4, and at least one solid filler.

    摘要翻译: 固体含量大于40重量%的聚氨酯弹性体由由异氰酸酯组分和异氰酸酯反应性组分组成的可喷涂聚氨酯形成体系制备。 异氰酸酯组分的固体含量为40至80wt。 %,基于异氰酸酯组分的总重量,并且由至少一种NCO含量为24至33%,官能度为2至3的芳族多异氰酸酯和至少一种固体填料组成。 异氰酸酯反应性组分的固体含量为40至80wt。 %,基于异氰酸酯反应性组分的总重量,并且由至少一种羟基数为25至40且官能度为2-4的聚醚多元醇和至少一种固体填料组成。

    Method of forming ionically-charged, encapsulated colorant nanoparticles
    7.
    发明授权
    Method of forming ionically-charged, encapsulated colorant nanoparticles 有权
    形成离子充电的包封的着色剂纳米颗粒的方法

    公开(公告)号:US08653185B2

    公开(公告)日:2014-02-18

    申请号:US12771586

    申请日:2010-04-30

    IPC分类号: C09D11/10 C08G18/08

    摘要: A method of forming ionically-charged, colorant nanoparticles involves forming in-situ ionically-charged polyurethane monomers, and forming an emulsion including the ionically-charged polyurethane monomers and a colorant nanoparticle. The method further involves polymerizing or crosslinking the ionically-charged polyurethane monomers in the emulsion, where the polymerizing or crosslinking chemically attaches the ionically-charged polyurethane monomers to a surface of the colorant nanoparticle to form an ionically-charged encapsulation layer on the surface.

    摘要翻译: 形成离子电荷的着色剂纳米颗粒的方法包括形成原位带离子电荷的聚氨酯单体,以及形成包含离子电荷聚氨酯单体和着色剂纳米颗粒的乳液。 该方法还涉及在乳液中聚合或交联离子电荷的聚氨酯单体,其中聚合或交联将离子电荷的聚氨酯单体化学地附着到着色剂纳米颗粒的表面上以在表面上形成离子电荷的封装层。