Paper wet-strength improvement with cellulose reactive size and amine
functional poly(vinyl alcohol)
    1.
    发明授权
    Paper wet-strength improvement with cellulose reactive size and amine functional poly(vinyl alcohol) 失效
    纤维素反应性大小和胺官能聚(乙烯醇)纸张湿强度改善

    公开(公告)号:US5397436A

    公开(公告)日:1995-03-14

    申请号:US207460

    申请日:1994-03-07

    摘要: The wet strength of cellulosic paper is improved by adding the combination of an amine-functional poly(vinyl alcohol) and a cellulose reactive size which is a 4 or 5 membered cyclic ester or anhydride having alkyl or alkenyl substituents of 4 or more carbon atoms. The amine-functional polymer is preferably a hydrolyzed copolymer of vinyl acetate and N-vinylformamide in which about 1-25 mole % of the monomer units are incorporated N-vinylformamide, and the cellulose reactive size is preferably an alkyl ketene dimer or an alkenyl succinic anhydride. A paper product is provided having improved wet-strength and containing normally 0.05 to 4.0 wt % based on the dry pulp of the additive amine-functional polymer and cellulose reactive size. The particular compounds which represent the polymer and the size cooperate to provide improvements in wet-tensile strength for paper which could not have been foreseen from the effects of either material acting alone.

    摘要翻译: 纤维素纸的湿强度通过加入胺官能聚(乙烯醇)和纤维素反应性大小的组合来改善,该组合是具有4个或更多个碳原子的烷基或链烯基取代基的4或5元环状酯或酸酐。 胺官能聚合物优选为乙酸乙烯酯和N-乙烯基甲酰胺的水解共聚物,其中约1-25摩尔%的单体单元加入N-乙烯基甲酰胺,纤维素反应性大小优选为烷基烯酮二聚体或链烯基琥珀酸 酐。 提供了具有改进的湿强度并且基于添加剂胺官能聚合物的干纸浆和纤维素反应尺寸通常含有0.05至4.0重量%的纸产品。 表示聚合物和尺寸的特定化合物相互配合以提供纸张的湿拉伸强度的改进,这不仅是单独使用任一种材料的作用所预见的。

    Graft polymers of .epsilon.-caprolactam
    2.
    发明授权
    Graft polymers of .epsilon.-caprolactam 失效
    ε-己内酰胺接枝聚合物

    公开(公告)号:US5342894A

    公开(公告)日:1994-08-30

    申请号:US852366

    申请日:1992-03-13

    CPC分类号: C08G69/14 C08G69/20

    摘要: Graft copolymers of .epsilon.-caprolactam are made by a process in which .epsilon.-caprolactam is polymerized in the presence of a copolymer of an aliphatic acrylate and an ethylenically unsaturated carboxylic acid, such as n-butylacrylate and acrylic acid. Such grafted polymers which have nylon-6 side chains grafted onto the acrylate polymer backbone are useful as hot melt adhesives. In the process for preparing these polymers, the backbone polymer is formed initially by solution polymerization at a moderate temperature and the .epsilon.-caprolactam is then added and the temperature increased in the presence of an acidic catalyst. .epsilon.-Caprolactam can be used as the solvent in the polymerization of the backbone polymer.

    摘要翻译: ε-己内酰胺的接枝共聚物通过其中ε-己内酰胺在脂族丙烯酸酯和烯键式不饱和羧酸的共聚物如丙烯酸正丁酯和丙烯酸的共聚物存在下聚合的方法制备。 具有接枝到丙烯酸酯聚合物主链上的尼龙-6侧链的这种接枝聚合物可用作热熔粘合剂。 在制备这些聚合物的方法中,主要聚合物最初通过在中等温度下的溶液聚合形成,然后加入ε-己内酰胺并在酸性催化剂存在下升高温度。 ε-己内酰胺可用作主链聚合物聚合中的溶剂。

    Binder compositions for making nonwoven fabrics having good hydrophobic
rewet properties
    3.
    发明授权
    Binder compositions for making nonwoven fabrics having good hydrophobic rewet properties 失效
    用于制造具有良好疏水再润湿性能的非织造织物的粘合剂组合物

    公开(公告)号:US4447570A

    公开(公告)日:1984-05-08

    申请号:US353445

    申请日:1982-03-01

    摘要: A binder composition for nonwoven fabrics which comprises(a) a fugitive base salt of a phosphate ester surfactant or a carboxylate surfactant,(b) a latex comprising a vinyl acetate-ethylene-olefinically unsaturated carboxylic acid interpolymer colloidally suspended in water, the interpolymer containing about 0.5 to 7.0 weight percent olefinically unsaturated carboxylic acid and sufficient ethylene to provide the interpolymer with a glass transition temperature of from about -30.degree. to +20.degree. C., and(c) a polyvalent metal complex compound comprising a polyvalent metal ion and counter ions or ligands which hinder interaction of the polyvalent metal ion with the carboxylate and phosphate groups of the surfactant and interpolymer at room temperature, but at elevated temperature permit such interaction because the counter ions or ligands are expelled or are replaced by the anionic group of the surfactant and interpolymer.Nonwoven fabrics, particularly diaper innerliners, bonded with such binder compositions possess good dry and wet tensile strengths and good low rewet properties.

    摘要翻译: 一种无纺布用粘合剂组合物,其包含(a)磷酸酯表面活性剂或羧酸盐表面活性剂的短暂碱盐,(b)包含胶体悬浮在水中的乙酸乙烯酯 - 乙烯 - 烯属不饱和羧酸互聚物的胶乳,含有 约0.5至7.0重量%的烯属不饱和羧酸和足够的乙烯以提供互聚物,其玻璃化转变温度为约-30℃至+ 20℃,和(c)包含多价金属离子的多价金属络合物和 阻止多价金属离子与表面活性剂和互聚物的羧酸盐和磷酸基团在室温下的相互作用的抗衡离子或配体,但在升高的温度下允许这种相互作用,因为反离子或配体被排出或被阴离子基团 表面活性剂和互聚物。 与这种粘合剂组合物粘合的非织造织物,特别是尿布内衬具有良好的干和湿拉伸强度和良好的低再湿润性能。

    Curable crosslinking system with monobenzaldimine as crosslinker
    4.
    发明授权
    Curable crosslinking system with monobenzaldimine as crosslinker 失效
    可变交联体系,以单苯甲醛亚胺为交联剂

    公开(公告)号:US5451653A

    公开(公告)日:1995-09-19

    申请号:US365723

    申请日:1994-12-28

    IPC分类号: C08F8/30 C08G18/83

    CPC分类号: C08F8/30 C08G18/833

    摘要: This invention relates to improved crosslinking systems for polymeric dispersions and solutions having suitability for coatings, adhesives and use in many other applications. These systems are based upon crosslinkable polymers having a plurality of activated keto methylene groups, e.g., a beta diketone such as an acetoacetate or a keto cyano methylene functional groups and a crosslinkable component comprising an aldimine. A sufficient amount of the aldimine curing agent is used to effect reaction with the polymer containing the activated keto methylene groups and cure thereof. The improvement in the crosslinking system resides in the utilization of a monoaldimine having only one aldimine group and no other methylene reactive group as a crosslinking agent. Another improvement variation to that previously suggested comprises a redispersible polymer(s) containing activated methylene functionality and combined with the monoaldimine and the use of heterocyclic aldimine.

    摘要翻译: 本发明涉及用于聚合物分散体的改进的交联体系和具有适用于涂料,粘合剂和在许多其它应用中使用的溶液。 这些体系基于具有多个活化的酮亚甲基的可交联聚合物,例如β-二酮如乙酰乙酸酯或酮基氰基亚甲基官能团,以及可交联组分,其包含醛亚胺。 使用足够量的醛亚胺固化剂来与含有活化酮亚甲基的聚合物进行反应并固化。 交联体系的改进在于利用仅具有一个醛亚胺基并且没有其它亚甲基反应性基团的单醛亚胺作为交联剂。 与之前提出的另一改进的变化包括含有活化的亚甲基官能团的可再分散的聚合物并与单醛亚胺和使用杂环醛亚胺组合。

    Two-phase process for preparing poly(vinyl alcohol)-co-poly(vinylamine)
    6.
    发明授权
    Two-phase process for preparing poly(vinyl alcohol)-co-poly(vinylamine) 失效
    制备聚(乙烯醇) - 共聚(乙烯基胺)的两相工艺

    公开(公告)号:US5194492A

    公开(公告)日:1993-03-16

    申请号:US816196

    申请日:1992-01-02

    IPC分类号: C08F8/12

    CPC分类号: C08F8/12

    摘要: Vinyl acetate and an N-vinyl formamide are copolymerized to yield poly(vinyl acetate)-co-poly(N-vinyl formamide) which is base hydrolyzed to poly(vinyl alcohol)-co-poly(N-vinyl formamide). Two phase hydrolysis of particles of poly(vinyl alcohol)-co-poly(N-vinyl formamide) as a slurry in methanol yields particles of poly(vinyl alcohol)-co-poly(vinylamine).Provided is a copolymer of the following general formula ##STR1## where m is 0 to 15 mole %,n is 50 to 99 mole %, x is 0 to 30 mole %, and y is 1 to 50 mole %.

    摘要翻译: 将乙酸乙烯酯和N-乙烯基甲酰胺共聚合得到基础水解成聚(乙烯醇) - 共 - (N-乙烯基甲酰胺)的聚乙酸乙烯酯 - 共 - (N-乙烯基甲酰胺)。 在甲醇中作为浆料的聚(乙烯醇) - 共聚(N-乙烯基甲酰胺)颗粒的两相水解产生聚(乙烯醇) - 共 - (乙烯胺)的颗粒。 本发明提供下述通式[IMAGE]的共聚物,其中m为0〜15摩尔%,n为50〜99摩尔%,x为0〜30摩尔%,y为1〜50摩尔%。

    Method for preparing poly(vinyl alcohol)-co-poly(vinylamine) via a
two-phase process
    7.
    发明授权
    Method for preparing poly(vinyl alcohol)-co-poly(vinylamine) via a two-phase process 失效
    通过两相工艺制备聚(乙烯醇) - 共聚(乙烯基胺)的方法

    公开(公告)号:US5300566A

    公开(公告)日:1994-04-05

    申请号:US181887

    申请日:1988-04-15

    IPC分类号: C08F8/12 C08F16/06

    CPC分类号: C08F8/12

    摘要: Vinyl acetate and an N-vinyl formamide are copolymerized to yield poly(vinyl acetate)-co-poly(N-vinyl formamide) which is base hydrolyzed to poly(vinyl alcohol)-co-poly(N-vinyl formamide). Two phase hydrolysis of particles of poly(vinyl alcohol)-co-poly(N-vinyl formamide) as a slurry in methanol yields particles of poly(vinyl alcohol)-co-poly(vinylamine).provided is a copolymer of the following general formula ##STR1## where m is 0 to 15 mole %. n is 50 to 99 mole %.x is 0 to 30 mole %. andy is 1 to 50 mole % .

    摘要翻译: 将乙酸乙烯酯和N-乙烯基甲酰胺共聚合得到基础水解成聚(乙烯醇) - 共 - (N-乙烯基甲酰胺)的聚乙酸乙烯酯 - 共 - (N-乙烯基甲酰胺)。 在甲醇中作为浆料的聚(乙烯醇) - 共聚(N-乙烯基甲酰胺)颗粒的两相水解产生聚(乙烯醇) - 共 - (乙烯胺)的颗粒。 提供了以下通式(*化学结构*)的共聚物,其中m为0至15摩尔%。 n为50〜99摩尔%。 x为0〜30摩尔%。 y为1〜50摩尔%。

    Process for the synthesis of oligomeric vinylamines
    8.
    发明授权
    Process for the synthesis of oligomeric vinylamines 失效
    低聚乙烯基胺的合成方法

    公开(公告)号:US5280077A

    公开(公告)日:1994-01-18

    申请号:US913563

    申请日:1992-07-14

    CPC分类号: C08F26/02 C08F8/12

    摘要: Vinylamide oligomers and lower molecular weight polymers are prepared by the cationic polymerization of vinylamides in the presence of a Lewis acid at a temperature between -100.degree. and 100.degree. C. The resultant vinylamide oligomers and polymers can optionally be hydrolyzed under acidic or basic conditions to form the corresponding vinylamine oligomers and polymers.

    摘要翻译: 乙烯基酰胺低聚物和低分子量聚合物通过在路易斯酸的存在下在-100至100℃的温度下,通过乙烯基酰胺的阳离子聚合来制备。所得乙烯基酰胺低聚物和聚合物可以任选地在酸性或碱性条件下水解成 形成相应的乙烯基胺低聚物和聚合物。