Method for producing micron sized silicone rubber particles
    1.
    发明授权
    Method for producing micron sized silicone rubber particles 失效
    微米级硅橡胶颗粒的制造方法

    公开(公告)号:US06281279B1

    公开(公告)日:2001-08-28

    申请号:US09475784

    申请日:1999-12-30

    IPC分类号: C08J303

    CPC分类号: C08J3/16 C08J2383/04

    摘要: A method for preparing silicone particles having an average particle size of 6 microns or less, said method comprising the following steps. First, a multifinctional vinyl terminated polysiloxane is mixed with a hydride terminated polysiloxane, surfactant, and polymerization catalyst under ambient conditions. This mixture is then dispersed in water under ambient conditions. The dispersion is the heated to cure the silicone. Afterwards the dispersion is broken and the particles are washed.

    摘要翻译: 一种制备平均粒径为6微米或更小的硅氧烷颗粒的方法,所述方法包括以下步骤。 首先,在环境条件下将多功能乙烯基封端的聚硅氧烷与氢化物封端的聚硅氧烷,表面活性剂和聚合催化剂混合。 然后将该混合物在环境条件下分散在水中。 分散体被加热固化硅树脂。 之后,分散体被破坏并且颗粒被洗涤。

    Process for producing polyorganosiloxane latex
    5.
    发明授权
    Process for producing polyorganosiloxane latex 有权
    生产聚有机硅氧烷胶乳的方法

    公开(公告)号:US06559224B1

    公开(公告)日:2003-05-06

    申请号:US09465271

    申请日:1999-12-17

    IPC分类号: C08J303

    摘要: In order to easily and effectively polymerize an organosiloxane and produce a polyorganosiloxane latex from which the organosiloxane monomer does not emerge and which has a weight-average diameter controlled to under 0.4 &mgr;m, a paste is polymerized which contains at least a cyclic organosiloxane, a surface active agent, an initiator, and water, and which is an emulsified dispersion of the cyclic organosiloxane, in which the water content is in a proportion of 1 to 66 parts by weight with respect to 100 parts by weight of the cyclic organosiloxane. A latex obtained by diluting the thus-obtained polymerized paste has excellent liquid stability. The above paste, which is an emulsified dispersion of the cyclic organosiloxane, can be produced by mixing the organosiloxane, the surface active agent, the initiator, and the water together in an emulsifying and dispersing machine, and dispersing therein.

    摘要翻译: 为了容易且有效地聚合有机硅氧烷并制备聚有机硅氧烷胶乳,有机硅氧烷单体不会从其中出现,并且其重均直径控制在0.4μm以下,聚合至少包含环状有机硅氧烷的表面,表面 活性剂,引发剂和水,它是环状有机硅氧烷的乳化分散体,其中水含量相对于100重量份的环状有机硅氧烷为1〜66重量份。 通过稀释由此获得的聚合糊获得的胶乳具有优异的液体稳定性。 作为环状有机硅氧烷的乳化分散液的上述糊料可以通过在乳化分散机中将有机硅氧烷,表面活性剂,引发剂和水一起混合并分散而制造。

    Polyurethane dispersion in alcohol-water system
    9.
    发明授权
    Polyurethane dispersion in alcohol-water system 失效
    酒精 - 水体系中的聚氨酯分散体

    公开(公告)号:US06433073B1

    公开(公告)日:2002-08-13

    申请号:US09626028

    申请日:2000-07-27

    IPC分类号: C08J303

    摘要: A polyurethane dispersion and a method of making are provided. The polyurethane dispersion is stable in a mixture of alcohol and water. The dispersion comprises the reaction product of (a) an isocyanate terminated polyurethane prepolymer comprising the reaction product of (i) at least one oligomeric polyactive hydrogen compound insoluble in said alcohol, wherein said polyactive hydrogen compound is an alkyl, aryl, or aralkyl structure optionally substituted by N, O, and S; (ii) at least one polyisocyanate, and (iii) at least one polyactive hydrogen compound soluble in said mixture of alcohol and water; (b) a polyfunctional chain extender; and (c) a monofunctional chain terminator; wherein the equivalent ratio of difunctional chain extender to prepolymer isocyanate is 0.60 to 1.20.

    摘要翻译: 提供聚氨酯分散体和制造方法。 聚氨酯分散体在醇和水的混合物中是稳定的。 分散体包含(a)异氰酸酯封端的聚氨酯预聚物的反应产物,其包含(i)至少一种不溶于所述醇的低聚物多官能氢化合物的反应产物,其中所述多官能氢化合物是任选的烷基,芳基或芳烷基结构 被N,O和S取代; (ii)至少一种多异氰酸酯,和(iii)至少一种可溶于所述醇和水的混合物的多官能氢化合物; (b)多官能增链剂; 和(c)单官能链终止剂; 其中双官能扩链剂与预聚物异氰酸酯的当量比为0.60〜1.20。

    Polycationic polymer salts, their production and use
    10.
    发明授权
    Polycationic polymer salts, their production and use 有权
    聚阳离子聚合物盐,其生产和使用

    公开(公告)号:US06426382B1

    公开(公告)日:2002-07-30

    申请号:US09720305

    申请日:2000-12-21

    IPC分类号: C08J303

    摘要: Aqueous solutions of polycationic polymers (PAB) containing quaternary ammonium groups in salt form as heteroatomic chain members or ring members of the polymer, wherein a part of the counter-ions to the quaternary cationic groups are anionic groups of anionic optical brighteners, containing at least one anionic group, are valuable multi-functional agents in papermaking.

    摘要翻译: 含有盐形式的季铵基团的聚阳离子聚合物(PAB)的水溶液作为聚合物的杂原子链成员或环成员,其中与季阳离子基团的反离子的一部分为阴离子基团的阴离子荧光增白剂,至少含有 一种阴离子基团是造纸中的有价值的多功能剂。