N-vinylamide polymers as stabilizing protective colloids in aqueous
emulsion polymerization
    1.
    发明授权
    N-vinylamide polymers as stabilizing protective colloids in aqueous emulsion polymerization 失效
    N-乙烯基酰胺聚合物作为水乳液聚合中的稳定保护胶体

    公开(公告)号:US5470903A

    公开(公告)日:1995-11-28

    申请号:US277827

    申请日:1994-07-20

    IPC分类号: C08F2/30 C08L39/02

    CPC分类号: C08F2/30

    摘要: A method for preparing aqueous polymer emulsions by effecting polymerization of vinyl monomers in the presence of a stabilizing amount of a water soluble poly(N-vinylformamide) containing polymer as a protective colloid and aqueous polymer emulsions containing poly(N-vinylformamide) stablizer.

    摘要翻译: 在稳定量的含水溶性聚(N-乙烯基甲酰胺)的聚合物作为保护胶体和含有聚(N-乙烯基甲酰胺)稳定剂的含水聚合物乳液的存在下,通过进行乙烯基单体的聚合来制备水性聚合物乳液的方法。

    Hydrolysis of polyvinyl aklaenoates
    2.
    发明授权
    Hydrolysis of polyvinyl aklaenoates 失效
    聚烯烃烯烃的水解

    公开(公告)号:US5753753A

    公开(公告)日:1998-05-19

    申请号:US803172

    申请日:1997-02-19

    IPC分类号: C08F8/12 C08K3/00 C08F16/06

    摘要: This invention relates to an improved process for producing a vinyl alcohol containing polymer having a narrow particle size without substantial reactor fouling. The process for producing the vinyl alcohol containing polymer involves hydrolyzing a vinyl ester containing polymer, e.g., a polymer containing polymerized vinyl alkanoate units in the presence of an alcoholic medium and a hydrolysis catalyst in the presence of an alcoholic medium having finely divided, inert material such as an alkali metal carbonate dispersed therein. The finely divided inert material acts as nucleating sites for the polyvinyl alcohol as it precipitates from the solution during hydrolysis.

    摘要翻译: 本发明涉及一种改进的具有窄的粒度的含乙烯醇的聚合物的方法,而没有实质的反应器结垢。 制备含乙烯醇的聚合物的方法包括在含有细分惰性材料的醇介质存在下,在含醇介质和水解催化剂的存在下水解含乙烯基酯的聚合物,例如含有聚合的乙烯基链烷酸酯单元的聚合物 例如分散在其中的碱金属碳酸盐。 精细分散的惰性材料作为聚乙烯醇的成核位置,因为它在水解过程中从溶液中沉淀出来。

    Cellulosic composition
    4.
    发明授权
    Cellulosic composition 失效
    纤维素组成

    公开(公告)号:US07628888B2

    公开(公告)日:2009-12-08

    申请号:US11450999

    申请日:2006-06-12

    摘要: A composition includes at least one hydrophilic polymer containing primary (—NH2) and/or secondary (—NHR) amine groups and at least one saccharide containing a reducible function. A method of increasing the strength of paper includes the step of contacting the paper with a composition comprising (i) at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function. A hydrogel composition is formed from a mixture of at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function.

    摘要翻译: 组合物包含至少一种含有伯(-NH 2)和/或仲(-NHR)胺基团的至少一种亲水性聚合物和至少一种含有可还原功能的糖。 提高纸张强度的方法包括使纸与包含(i)至少一种亲水性聚合物的步骤,所述组合物含有至少两个独立地相同或不同的伯胺基或仲胺基的基团,并且在 至少一种含有可还原功能的糖。 水凝胶组合物由至少一种含有至少两个独立地相同或不同的伯胺基或仲胺基的亲水性聚合物和至少一种含有还原性功能的糖的亲水性聚合物的混合物形成。

    LOW FORMALDEHYDE AND HIGH WET STRENTGH VINYL ACETATE ETHYLENE DISPERSIONS
    5.
    发明申请
    LOW FORMALDEHYDE AND HIGH WET STRENTGH VINYL ACETATE ETHYLENE DISPERSIONS 审中-公开
    低甲醛和高湿乙酸乙烯酯乙烯分散体

    公开(公告)号:US20130149929A1

    公开(公告)日:2013-06-13

    申请号:US13313467

    申请日:2011-12-07

    摘要: An aqueous composition includes a blend of: a) an aqueous dispersion of an N-methylol-containing vinyl acetate ethylene or vinyl acetate polymer, stabilized by polyvinyl alcohol and optionally also by a surfactant, wherein N-methylol-containing monomer units constitute from 0.025 to 0.4 wt % of the polymer; and b) an acid. The invention provides a method of increasing the wet strength of a fibrous nonwoven substrate, including applying to the substrate the above aqueous composition, followed by a drying step. A fibrous nonwoven article is thereby provided.

    摘要翻译: 水性组合物包括以下混合物:a)含聚乙烯醇稳定的含有N-羟甲基的乙酸乙烯酯乙烯或乙酸乙烯酯聚合物的水性分散体,任选地也可由表面活性剂稳定,其中含N-羟甲基的单体单元构成0.025 至0.4重量%的聚合物; 和b)酸。 本发明提供了增加纤维非织造基材的湿强度的方法,包括将上述水性组合物涂布在基材上,随后进行干燥步骤。 从而提供纤维非织造制品。

    Polymer emulsions resistant to biodeterioration
    8.
    发明授权
    Polymer emulsions resistant to biodeterioration 有权
    抗生物降解的聚合物乳液

    公开(公告)号:US07619017B2

    公开(公告)日:2009-11-17

    申请号:US10441806

    申请日:2003-05-19

    IPC分类号: C08K5/34 C08K5/17 C09D5/16

    摘要: This invention is directed to a method of preserving polymer emulsions against biodeteriogenic microbe attack and spoilage by combining with the polymer emulsions selected cationic compounds and an ethylenediamine acid compound. The polymer emulsions contain surfactants and/or anionic constituents. It is also directed to polymer emulsion compositions, that are resistant to spoilage by biodeteriogenic microbes, containing surfactants and/or anionic constituents, an ethylenediamine acid compound, and cationic compounds.

    摘要翻译: 本发明涉及通过与选择的阳离子化合物和乙二胺酸化合物的聚合物乳液结合来保存聚合物乳液以防止生物发生微生物侵袭和变质的方法。 聚合物乳液含有表面活性剂和/或阴离子组分。 它还涉及聚合物乳液组合物,其通过生物发生微生物,含有表面活性剂和/或阴离子组分,乙二胺酸化合物和阳离子化合物具有抗腐蚀性。