Water absorbing polymers
    1.
    发明授权
    Water absorbing polymers 失效
    吸水聚合物

    公开(公告)号:US5384343A

    公开(公告)日:1995-01-24

    申请号:US915887

    申请日:1992-07-20

    IPC分类号: C10L9/10 C22B1/244 C08K11/00

    CPC分类号: C22B1/244 C10L9/10

    摘要: A water absorbing particulate polymer material wherein the polymer material when in dry powder form has a particle size of about 50 .mu.m to about 500 .mu.m and wherein the particles consist of internally bonded finer particles which finer particles have a size below 50 .mu.m. The process of using the water absorbing polymer, material to convert a wet sticky mass of inorganic particulate such as coal fines into a crumbly or flowable solid. A process using a water absorbing particulate polymer material to convert a wet sticky mass of organic particulate material into a crumbly or flowable solid wherein the organic matter can be, for example, food waste or sewage.

    摘要翻译: 一种吸水性粒状聚合物材料,其中当干粉形式的聚合物材料具有约50μm至约500μm的粒度,并且其中所述颗粒由内部粘合的较细颗粒组成,其中较细颗粒的尺寸低于50μm。 使用吸水性聚合物的过程是将湿的粘性物质如煤粉转化为易碎或可流动的固体。 一种使用吸水性粒状聚合物材料将湿粘性有机颗粒材料转化成易碎或可流动的固体的方法,其中有机物可以是例如食物废物或污水。

    Blends of acrylamide polymers and Mannich bases
    6.
    发明授权
    Blends of acrylamide polymers and Mannich bases 失效
    丙烯酰胺聚合物和曼尼希碱的共混物

    公开(公告)号:US4789695A

    公开(公告)日:1988-12-06

    申请号:US889948

    申请日:1986-07-24

    CPC分类号: C08K5/16

    摘要: A Mannich base of a high molecular weight acrylamide polymer can be made by reacting, in aqueous solution, the polymer with a Mannich base of a low molecular weight compound such as urea. A composition of the polymer and the Mannich base is preferably substantially non-aqueous.

    摘要翻译: 高分子量丙烯酰胺聚合物的曼尼希碱可以通过在水溶液中使聚合物与低分子量化合物如尿素的曼尼希碱反应来制备。 聚合物和曼尼希碱的组合物优选基本上是非水的。

    Flocculation processes
    8.
    发明授权
    Flocculation processes 失效
    絮凝过程

    公开(公告)号:US4720346A

    公开(公告)日:1988-01-19

    申请号:US855509

    申请日:1986-04-23

    摘要: When flocculating an aqueous suspension of suspended solids using a high molecular weight synthetic polymeric flocculant, the shear stability of the flocs is increased if the polymeric material includes polymeric particles of below 10 .mu.m dry size. The flocculated solids can therefore be subjected to shear without increasing the amount of discrete suspended solids in the aqueous medium and generally they are subjected to shear by shearing the aqueous medium containing them, either before dewatering, generally on a centrifuge, piston press or belt press, or by continuously agitating them, for instance in a chemical reaction medium. The polymeric material is generally formed by mixing into water polymeric particles made by reverse phase or emulsion polymerization in the presence of added cross linking agent. Alternatively, particles insolubilized by insoluble monomer may be used. A reverse phase dispersion of water soluble polymer may be used if the particles remain undissolved, e.g. if they are added in the absence of an oil in water emulsifying agent.

    摘要翻译: 当使用高分子量合成聚合物絮凝剂絮凝悬浮固体的水性悬浮液时,如果聚合物材料包括低于10μm干燥尺寸的聚合物颗粒,则絮凝物的剪切稳定性增加。 因此,絮凝的固体可以经受剪切而不增加水性介质中离散的悬浮固体的量,并且通常在脱水之前通常剪切含有它们的水性介质,通常在离心机,活塞压力机或带式压力机 ,或者通过连续搅拌它们,例如在化学反应介质中。 聚合物材料通常通过在添加的交联剂的存在下混合成通过反相或乳液聚合制备的水聚合物颗粒来形成。 或者,可以使用不溶性单体不溶的颗粒。 如果颗粒保持不溶,则可以使用水溶性聚合物的反相分散体,例如, 如果在没有水包油乳化剂的情况下加入。

    Flocculants and their use
    9.
    发明授权
    Flocculants and their use 失效
    絮凝剂及其用途

    公开(公告)号:US4702844A

    公开(公告)日:1987-10-27

    申请号:US766097

    申请日:1985-08-15

    摘要: A suspension may be flocculated using a water soluble substantially linear polymer having a single point intrinsic viscosity above 3 and that is a copolymer of two or more ethylenically unsaturated monomers including at least 0.5% by weight of monomer carrying pendant hydrophobic groups. The cationic polymers are novel. Preferred polymers are those in which the hydrophobic group is introduced as an allyl ether.

    摘要翻译: 可以使用具有高于3的单点特性粘度的水溶性基本线性聚合物来絮凝悬浮液,并且其是包含至少0.5重量%的携带侧链疏水基团的单体的两种或更多种烯属不饱和单体的共聚物。 阳离子聚合物是新颖的。 优选的聚合物是其中引入疏水基团作为烯丙基醚的聚合物。

    Aqueous polymer dispersions
    10.
    发明授权
    Aqueous polymer dispersions 失效
    聚合物水分散体

    公开(公告)号:US4673704A

    公开(公告)日:1987-06-16

    申请号:US749295

    申请日:1985-06-27

    摘要: A water miscible, stable, fluid product comprises particles above 20 microns in size of a high molecular weight polymer gel interconnected by a continuous phase that is an aqueous solution of an equilibrating agent that holds the water content of the particles in equilibrium with the water content of the aqueous phase and that prevents substantial agglomeration of the particles in the fluid product. Preferred equilibrating agents are sodium polyacrylate and poly-diallyl dimethyl ammonium chloride.

    摘要翻译: 水混溶性稳定的流体产物包含大于20微米的高分子量聚合物凝胶的颗粒,该高分子量聚合物凝胶通过连续相相互连接,所述连续相是平衡剂的水溶液,其将颗粒的含水量保持与水含量平衡 的水相,并且防止颗粒在流体产物中的显着附聚。 优选的平衡剂是聚丙烯酸钠和聚二烯丙基二甲基氯化铵。