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    Method of dispersing inorganic materials in aqueous systems with low molecular weight acrylic acid copolymers
    1.
    发明授权
    Method of dispersing inorganic materials in aqueous systems with low molecular weight acrylic acid copolymers 失效
    在低分子量丙烯酸共聚物的水性体系中分散无机材料的方法

    公开(公告)号：US4517098A

    公开(公告)日：1985-05-14

    申请号：US485559

    申请日：1983-04-15

    申请人： William M. Hann ,  Jean DuPre ,  John Natoli

    发明人： William M. Hann ,  Jean DuPre ,  John Natoli

    IPC分类号： B01J13/00 ,  B01F17/52 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10

    CPC分类号： C02F5/10

    摘要： A method for dispersing inorganic materials in aqueous systems using water soluble, low molecular weight copolymers of acrylic acid is provided. Copolymers having a weight average molecular weight of from about 2,000 to about 5,000 formed from about 85 to about 97 weight percent acrylic acid and from about 3 to about 15 weight percent of a hydrophobic comonomer are provided for effective dispersion of suspended particulate matter, such as clay, and for inhibiting the precipitation of common hardness ion salts in aqueous systems. The most preferred copolymers have a weight average molecular weight of about 3,000 and are formed from about 95 weight percent acrylic acid and about 5 weight percent ethyl acrylate.

    摘要翻译： 提供了使用水溶性低分子量丙烯酸共聚物将无机材料分散在含水体系中的方法。 提供重均分子量为约2000至约5,000的共聚物，其由约85至约97重量％的丙烯酸和约3至约15重量％的疏水性共聚单体形成，用于有效分散悬浮颗粒物质，例如 粘土，并用于抑制水性体系中普通硬度离子盐的沉淀。 最优选的共聚物的重均分子量为约3,000，并由约95重量％的丙烯酸和约5重量％的丙烯酸乙酯形成。

    Method of inhibiting scaling in aqueous systems with low molecular weight copolymers
    2.
    发明授权
    Method of inhibiting scaling in aqueous systems with low molecular weight copolymers 失效
    用低分子量共聚物抑制含水体系中结垢的方法

    公开(公告)号：US4530766A

    公开(公告)日：1985-07-23

    申请号：US653998

    申请日：1984-09-24

    申请人： William M. Hann ,  John Natoli

    发明人： William M. Hann ,  John Natoli

    IPC分类号： C02F5/10 ,  C08F220/06

    CPC分类号： C08F220/06 ,  C02F5/10

    摘要： A method for inhibiting scale formation in aqueous systems using water-soluble, low molecular weight copolymers of unsaturated aliphatic carboxylic acids is provided. Copolymers formed from about 30 to about 70 weight percent acrylic acid and from about 70 to about 30 weight percent methacrylic acid, having a weight average molecular weight ranging from about 2000 to about 5000, are preferred for inhibiting the formation of common hardness ion salt scale such as calcium carbonate, calcium phosphate and barium sulfate. The copolymers are hydrolytically stable and can be used effectively in high temperature applications. The copolymers are also effective dispersants for suspended inorganic particulate materials, such as clay, in aqueous systems.

    摘要翻译： 提供一种使用水不溶性低分子量不饱和脂肪族羧酸的共聚物抑制水性体系中的结垢的方法。 由约30至约70重量％的丙烯酸和约70至约30重量％的甲基丙烯酸形成的共聚物，其重均分子量范围为约2000至约5000，优选用于抑制常见硬度离子盐垢的形成 如碳酸钙，磷酸钙和硫酸钡。 共聚物具有水解稳定性，可在高温应用中有效使用。 共聚物也是用于水性体系中悬浮的无机颗粒材料如粘土的有效分散剂。

    Method of stabilizing aqueous systems
    3.
    发明授权
    Method of stabilizing aqueous systems 失效
    稳定水体系的方法

    公开(公告)号：US4711725A

    公开(公告)日：1987-12-08

    申请号：US861732

    申请日：1986-05-07

    申请人： David R. Amick ,  William M. Hann ,  John Natoli

    发明人： David R. Amick ,  William M. Hann ,  John Natoli

    IPC分类号： C02F5/12 ,  C08F220/06

    CPC分类号： C02F5/125 ,  C02F5/12 ,  C08F220/06

    摘要： A process for stabilizing aqueous systems containing scale forming salts and inorganic particulates by adding to such systems an effective amount of selected low molecular weight water soluble polymers containing from about 10 to about 84 weight percent (meth)acrylic acid units, greater than 11 to less than about 40 weight percent acrylamido alkyl or aryl sulfonate units and from at least about 5 to about 50 weight percent of one or more units selected from vinyl esters, vinyl acetate and substituted acrylamides, is provided. The terpolymers and interpolymers used in the process provide improved phosphate, iron and zinc stabilization while maintaining their water solubility. Certain preferred polymers also exhibit a high degree of hydrolytic stability at high pH conditions.

    摘要翻译： 通过向这种体系中加入有效量的含有约10至约84重量％（甲基）丙烯酸单元的选择的低分子量水溶性聚合物，其含量大于11至少 提供约40重量％的丙烯酰胺基烷基或芳基磺酸酯单元和至少约5至约50重量％的选自乙烯基酯，乙酸乙烯酯和取代的丙烯酰胺的一种或多种单元。 在该方法中使用的三元共聚物和互聚物提供改善的磷酸盐，铁和锌稳定性，同时保持其水溶性。 某些优选的聚合物在高pH条件下也表现出高程度的水解稳定性。

    Method of treating leather with amphoteric polymers
    4.
    发明授权
    Method of treating leather with amphoteric polymers 失效
    用两性聚合物处理皮革的方法

    公开(公告)号：US5709714A

    公开(公告)日：1998-01-20

    申请号：US799175

    申请日：1997-02-12

    申请人： John Natoli ,  Anthony Frank Volpe, Jr.

    发明人： John Natoli ,  Anthony Frank Volpe, Jr.

    IPC分类号： C08F265/04 ,  C08F291/00 ,  C14C3/22 ,  C14C3/28

    CPC分类号： C08F265/04 ,  C08F291/00 ,  C14C3/22 ,  C14C3/28

    摘要： The present invention is directed to a method of treating tanned leather stock to improve its color expression characteristics. The method provides for utilizing a two-stage amphoteric polymers, which improve the color expression characteristic of the tanned leather stock while still retaining desired grain break and tensile strength. The tanned leather stock is contacted, preferably by immersion, in a float containing particles of an amphoteric polymer dispersed therein and a desired colorant. The amphoteric polymer particles comprise a first stage copolymer polymerized from at least one monomer containing an anionic functionality, such as, an acid functionality, with at least one first stage comonomer and a second stage copolymer polymerized from at least one monomer containing the cationic functionality, such as, an amine functionality, with at least one second stage comonomer.

    摘要翻译： 本发明涉及一种处理鞣制皮革原料以改善其颜色表现特性的方法。 该方法提供了使用两阶段两性聚合物，其改善了鞣制皮革原料的颜色表现特性，同时仍保留所需的晶粒断裂和拉伸强度。 将鞣制的皮革坯料优选通过浸渍接触在含有分散在其中的两性聚合物颗粒和所需着色剂的浮子中。 两性聚合物颗粒包含由至少一种含有阴离子官能团（例如酸官能度）的单体与至少一种第一级共聚单体和从至少一种含有阳离子官能团的单体聚合的第二级共聚物聚合的第一级共聚物， 例如胺官能团，具有至少一个第二级共聚单体。

    Segmented copolymers
    6.
    发明授权
    Segmented copolymers 失效
    分段共聚物

    公开(公告)号：US5247024A

    公开(公告)日：1993-09-21

    申请号：US898979

    申请日：1992-06-15

    申请人： John Natoli ,  Min-Yin Chang

    发明人： John Natoli ,  Min-Yin Chang

    IPC分类号： C08F2/06 ,  C08F255/00

    CPC分类号： C08F255/00

    摘要： An improved process for the preparation of segmented copolymers of polyolefins and poly(methacrylates) is disclosed.

    摘要翻译： 公开了一种用于制备聚烯烃和聚（甲基丙烯酸酯）的分段共聚物的改进方法。