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12 条记录 (耗时 0.016 秒)

    Vinyl acetate-ethylene copolymer emulsions prepared in the presence of a stabilizing system of a low molecular weight polyvinyl alcohol and a surfactant
    1.
    发明授权
    Vinyl acetate-ethylene copolymer emulsions prepared in the presence of a stabilizing system of a low molecular weight polyvinyl alcohol and a surfactant 失效
    在低分子量聚乙烯醇和表面活性剂的稳定体系存在下制备的乙酸乙烯酯 - 乙烯共聚物乳液

    公开(公告)号：US4921898A

    公开(公告)日：1990-05-01

    申请号：US15194

    申请日：1987-02-17

    申请人： William E. Lenney ,  John G. Iacoviello

    发明人： William E. Lenney ,  John G. Iacoviello

    IPC分类号： C08L31/04 ,  C08F2/16 ,  C08F2/30 ,  C08F218/08 ,  C08L23/08 ,  C08L31/00

    CPC分类号： C08F218/08

    摘要： A vinyl acetate-ethylene copolymer emulsion which is about 65-70% solids and has a viscosity of less than about 3,500 is disclosed. The emulsion is prepared by copolymerization of vinyl acetate and ethylene monomers in the presence of a stabilizing system consisting essentially of 2-4 wt %, based on vinyl acetate monomer, of a polyvinyl alcohol having a 100-600 degree of polymerization and 2-4wt %, based on vinyl acetate monomer, of a surfactant. Such emulsions demonstrate an improved speed of set as an adhesive.

    摘要翻译： 公开了约65-70％固体并且粘度小于约3,500的乙酸乙烯酯 - 乙烯共聚物乳液。 乳液通过乙酸乙烯酯和乙烯单体的共聚制备，所述稳定体系基本上由基于乙酸乙烯酯单体的2-4重量％组成的具有100-600聚合度的聚乙烯醇和2-4重量％ ％，基于乙酸乙烯酯单体，表面活性剂。 这样的乳液表现出作为粘合剂的凝固速度的改善。

    Process for preparing pressure sensitive adhesives
    2.
    发明授权
    Process for preparing pressure sensitive adhesives 失效
    制备压敏粘合剂的方法

    公开(公告)号：US4725639A

    公开(公告)日：1988-02-16

    申请号：US550324

    申请日：1983-11-09

    申请人： William E. Lenney

    发明人： William E. Lenney

    IPC分类号： C08F2/00 ,  C08F2/22 ,  C08F218/04 ,  C08F220/06 ,  C08F220/12 ,  C08F220/18 ,  C09J131/04 ,  C09J133/04 ,  C09J133/06

    CPC分类号： C08F220/12 ,  C08F218/04 ,  C09J131/04 ,  C09J133/064 ,  C09J2201/606

    摘要： In a process for preparing a pressure sensitive adhesive emulsion containing a polymer having a Tg of -10.degree. C. or below which comprises polymerizing in an aqueous emulsion (a) an alkyl acrylate or vinyl ester, (b) an olefinically unsaturated carboxylic acid and (c) a polyolefinically unsaturated monomer for enhancing cohesive strength of the polymer, the method for enhancing the shear resistance of the pressure sensitive adhesive polymer which comprises(1) forming an aqueous suspension reaction mixture comprising a stabilizing agent and at least a portion of the alkyl acrylate or vinyl ester,(2) initiating the reaction mixture by the addition of a free radical source at a temperature from about 10.degree.-40.degree. C. and bringing the reaction mixture to a reaction temperature of from 45.degree.-85.degree. C. within a period of not more than 2 hours with the reaction temperature exceeding the initiation temperature by at least 15.degree. C.,(3) adding the olefinically unsaturated carboxylic acid monomer and the polyolefinically unsaturated monomer at a substantially uniform rate such that the major portion of the carboxylic acid and polyolefinically unsaturated monomers has been added by the time the alkyl acrylate and vinyl ester content as free monomer in the reaction mixture has been reduced to a level of less than about 10 wt % of the mixture, and(4) continuing polymerization of the reaction mixture until the alkyl acrylate and vinyl ester content as free monomer in the reaction mixture is reduced below about 1 wt %.

    摘要翻译： 在制备含有Tg为-10℃或更低的聚合物的压敏粘合剂乳液的方法中，该聚合物包括在水性乳液（a）中丙烯酸烷基酯或乙烯基酯聚合，（b）烯属不饱和羧酸和 （c）用于提高聚合物的内聚强度的聚烯烃不饱和单体，用于增强压敏粘合剂聚合物的抗剪切性的方法，其包括（1）形成含有稳定剂的水悬浮反应混合物和至少一部分 丙烯酸烷基酯或乙烯基酯，（2）通过在约10 -40℃的温度下加入自由基来引发反应混合物，并使反应混合物的反应温度为45-85℃ 在不超过2小时的时间内，反应温度超过起始温度至少15℃，（3）加入烯属不饱和羧酸m 单体和聚烯烃不饱和单体以大致均匀的速率使得大部分羧酸和聚烯烃不饱和单体在反应混合物中作为游离单体的丙烯酸烷基酯和乙烯基酯含量已经降低至一定水平 小于约10重量％的混合物，和（4）反应混合物的持续聚合直到反应混合物中作为游离单体的丙烯酸烷基酯和乙烯基酯含量降低到约1重量％以下。

    Aqueous emulsion materials containing copolymerized vinyl amide monomers and hydrolysis products thereof
    3.
    发明授权
    Aqueous emulsion materials containing copolymerized vinyl amide monomers and hydrolysis products thereof 失效
    含有共聚乙烯基酰胺单体的水性乳液材料及其水解产物

    公开(公告)号：US5591799A

    公开(公告)日：1997-01-07

    申请号：US398025

    申请日：1995-03-03

    申请人： Richard H. Bott ,  Michael E. Ford ,  William E. Lenney

    发明人： Richard H. Bott ,  Michael E. Ford ,  William E. Lenney

    IPC分类号： C08L39/02 ,  C08F8/12 ,  C08F18/02 ,  C08F26/00 ,  C08F218/02 ,  C08F218/08 ,  C08F218/10 ,  C08F220/10 ,  C08F220/12 ,  C08F226/02 ,  C08L39/00

    CPC分类号： C08F8/12 ,  C08F2810/50

    摘要： This invention pertains to aqueous emulsions containing water insoluble, vinyl polymer particles containing polymerized N-vinyl formamide (NVF) units converted to water insoluble vinyl acetate polymers containing cationic, amine functional units. These latex dispersions are prepared by the emulsion polymerization of an ethylenically unsaturated monomer and N-vinyl formamide. Preferably, vinyl acetate, optionally with other ethylenically unsaturated monomers, are used to form the copolymer. The copolymer then is selectively hydrolyzed via acid hydrolysis of the N-vinyl formamide group to form water insoluble polymer particles.

    摘要翻译： 本发明涉及含有水不溶性乙烯基聚合物颗粒的含水乳液，该聚合物颗粒含有聚合的N-乙烯基甲酰胺（NVF）单元转化成含有阳离子胺官能单元的水不溶性乙酸乙烯酯聚合物。 这些胶乳分散体通过烯属不饱和单体和N-乙烯基甲酰胺的乳液聚合制备。 优选使用任选与其它烯属不饱和单体的乙酸乙烯酯形成共聚物。 然后通过N-乙烯基甲酰胺基团的酸水解将共聚物选择性水解，形成水不溶性聚合物颗粒。

    Continuous emulsion polymerization of vinyl acetate and ethylene
    6.
    发明授权
    Continuous emulsion polymerization of vinyl acetate and ethylene 失效
    乙酸乙烯酯和乙烯的连续乳液聚合

    公开(公告)号：US4164489A

    公开(公告)日：1979-08-14

    申请号：US899421

    申请日：1978-04-24

    申请人： Wiley E. Daniels ,  William E. Lenney

    发明人： Wiley E. Daniels ,  William E. Lenney

    IPC分类号： C08F2/00 ,  C08F2/22 ,  C08F10/00 ,  C08F210/00 ,  C08F210/02 ,  C08F218/00 ,  C08F218/02 ,  C08F218/08 ,  C08F263/04 ,  C08L23/04

    CPC分类号： C08F263/04

    摘要： This invention relates to an improved continuous process for producing vinyl acetate-ethylene copolymer emulsions. The improvement for continuous polymerization of vinyl acetate and ethylene comprises continuously charging a reaction mixture containing vinyl acetate and ethylene to a polymerization vessel, conducting an initial polymerization of the vinyl acetate and ethylene in the presence of a seed latex under ethylene pressure and continuously removing the thus formed latex from the initial polymerization vessel at an unreacted vinyl acetate monomer content from 5-20% by weight of the latex and then effecting a post polymerization of the unreacted vinyl acetate at an ethylene pressure of not more than about 300 psia until the unreacted vinyl acetate in the latex is less than 1% by weight.

    摘要翻译： 本发明涉及生产乙酸乙烯酯 - 乙烯共聚物乳液的改进的连续方法。 乙酸乙烯酯和乙烯的连续聚合的改进包括将含有乙酸乙烯酯和乙烯的反应混合物连续加入到聚合容器中，在乙烯压力下在种子胶乳存在下进行乙酸乙烯酯和乙烯的初始聚合，并连续除去 由此在初始聚合容器中形成胶乳，其未反应的乙酸乙烯酯单体含量为胶乳的重量的5重量％，然后在不超过约300psia的乙烯压力下进行未反应的乙酸乙烯酯的后聚合，直至 胶乳中未反应的乙酸乙烯酯的含量小于1重量％。

    Vinyl acetate/acrylate copolymer emulsions for paper coating compositions
    7.
    发明授权
    Vinyl acetate/acrylate copolymer emulsions for paper coating compositions 失效
    用于纸张涂料组合物的乙酸乙烯酯/丙烯酸酯共聚物乳液

    公开(公告)号：US4609704A

    公开(公告)日：1986-09-02

    申请号：US670259

    申请日：1984-11-09

    申请人： Mary L. Hausman ,  William E. Lenney ,  Gerald D. Miller

    发明人： Mary L. Hausman ,  William E. Lenney ,  Gerald D. Miller

    IPC分类号： C08F2/24 ,  C08F218/04 ,  D21H19/58 ,  D21H19/60

    CPC分类号： C08F218/04 ,  D21H19/58 ,  D21H19/60

    摘要： Aqueous vinyl ester/acrylate copolymer emulsions possessing enhanced wet pick strength in paper coating compositions comprise a vinyl ester/acrylate copolymer colloidally dispersed in an aqueous medium, the copolymer consisting essentially of (a) a vinyl ester of a C.sub.1 -C.sub.12 alkanoic acid, (b) 2 to 50 wt % of an alkyl acrylate, and (c) 0.1 to 10 wt % of an ethylenically unsaturated mono- or dicarboxylic acid or half ester thereof. The copolymer is prepared by an aqueous emulsion polymerization process comprising the use of a stabilizer system consisting essentially of an alkylphenoxy polyethoxy ethanol and an anionic surfactant and, in the preferred embodiment, the use of a seeding procedure.

    摘要翻译： 在纸涂层组合物中具有增强的湿粘强度的乙烯基酯/丙烯酸酯共聚物水乳液包含胶体分散在水性介质中的乙烯基酯/丙烯酸酯共聚物，该共聚物基本上由（a）C1-C12链烷酸的乙烯基酯（ b）2-50重量％的丙烯酸烷基酯，和（c）0.1-10重量％的烯属不饱和单羧酸或二羧酸或其半酯。 共聚物通过水性乳液聚合方法制备，包括使用基本上由烷基苯氧基聚乙氧基乙醇和阴离子表面活性剂组成的稳定剂体系，在优选的实施方案中，使用接种方法。

    N-vinylamide polymers as stabilizing protective colloids in aqueous emulsion polymerization
    8.
    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

    申请人： William E. Lenney ,  Dennis Sagl

    发明人： William E. Lenney ,  Dennis Sagl

    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。