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    Adhesives with improved rivet properties and laminates using the same
    6.
    发明授权
    Adhesives with improved rivet properties and laminates using the same 有权
    具有改进的铆钉性能的粘合剂和使用其的层压材料

    公开(公告)号：US06844391B1

    公开(公告)日：2005-01-18

    申请号：US09404047

    申请日：1999-09-23

    申请人： Pradeep Iyer ,  Gerhild Lamb ,  Prakash Mallya

    发明人： Pradeep Iyer ,  Gerhild Lamb ,  Prakash Mallya

    IPC分类号： C09J133/14 ,  C08L39/00

    CPC分类号： C09J133/14 ,  Y10T428/2852 ,  Y10T428/2891

    摘要： Acrylate copolymer pressure-sensitive adhesive constructions are described which provide excellent retention of rivet properties. Tenting around rivets is minimized even after undergoing thermal aging while in contact with additive rich films like PVC. This is achieved by the inclusion of a synergistic amount of an N-vinyl lactam monomer and acid monomer with the bulk of the monomers being an alkyl acrylate save and/or methacrylate esters. A concomitant increase in cohesive strength is also achieved which affords good removal characteristics. The use of appropriate adhesive blends is further disclosed which allows retention of these features while also improving cold temperature properties.

    摘要翻译： 描述了丙烯酸酯共聚物压敏粘合剂结构，其提供优异的铆钉性能保持性。 即使经历热老化，与PVC等添加剂丰富的膜接触时，铆钉也将尽量减少。 这通过包含协同量的N-乙烯基内酰胺单体和酸单体而实现，其中大部分单体是丙烯酸烷基酯和/或甲基丙烯酸酯。 还实现了内聚强度的同时增加，其提供了良好的去除特性。 进一步公开了使用适当的粘合剂共混物，其允许保留这些特征，同时还改善冷温度性质。

    HOT WATER WHITENING RESISTANT EMULSION PRESSURE SENSITIVE ADHESIVES
    7.
    发明申请
    HOT WATER WHITENING RESISTANT EMULSION PRESSURE SENSITIVE ADHESIVES 失效
    耐高温耐水乳液压力敏感性粘合剂

    公开(公告)号：US20010003765A1

    公开(公告)日：2001-06-14

    申请号：US08825490

    申请日：1997-03-28

    申请人： Prakash Mallya

    发明人： PRAKASH MALLYA ,  XING-YA LI ,  COLIN C. SMITH ,  GEORGE DILTS ,  KREGG D. ALBRECHT ,  JOSEPH T. TENHAGEN ,  ROBERT D. PETRASKO

    IPC分类号： C08K005/49

    CPC分类号： C08F220/18 ,  C08L2666/28 ,  C09J133/06 ,  C09J2201/606

    摘要： Acrylic emulsion PSA polymers which when cast as a film resist water whitening by hot or ambient temperature water are provided, and are formed by copolymerizing a monomer mixture comprising at least one alkyl acrylate ester of an alcohol containing at least four carbon atoms, at least one polar comonomer and at least one partially water soluble comonomer present in an amount of at least about 7% by weight of the monomers. Polymerization is carried out in the presence of at least one nonionic surfactant containing at least about 8 moles of ethylene oxide per mole nonionic surfactant and at least one anionic surfactant containing up to about 10 moles ethylene oxide per mole anionic surfactant. There is added to the product of polymerization at least one base to produce an emulsion having a pH greater than 7 and containing particles having a mean nullvolume-averagenull particle diameter of up to about 210 nm as determined by laser light scattering. An electrolyte is post-polymerization added to stabilize opacity of the adhesive films cast from the emulsion. Applications include autoclavable labels, wet-stick container labels, fleet marking labels and battery labels.

    摘要翻译： 提供了当通过热或环境温度水涂覆作为膜抵抗水增白时的丙烯酸乳液PSA聚合物，并且通过将包含至少一种含有至少四个碳原子的醇的至少一种丙烯酸烷基酯的单体混合物，至少一种 极性共聚单体和至少一种部分水溶性共聚单体，其量为单体重量的至少约7％。 在至少一种含有至少约8摩尔环氧乙烷/摩尔非离子表面活性剂的非离子表面活性剂和每摩尔阴离子表面活性剂含有至多约10摩尔环氧乙烷的至少一种阴离子表面活性剂的存在下进行聚合。 向聚合至少一个碱的产物中加入产生pH大于7的乳液，并且通过激光散射确定具有高达约210nm的平均“体积平均”粒径的颗粒。 加入电解质进行后聚合以稳定从乳液浇铸的粘合剂膜的不透明度。 应用包括可高压灭菌的标签，湿棒容器标签，车队标记标签和电池标签。

    High performance pressure sensitive adhesive tapes and process for making the same
    9.
    发明授权
    High performance pressure sensitive adhesive tapes and process for making the same 失效
    高性能压敏胶带及其制造方法

    公开(公告)号：US5100728A

    公开(公告)日：1992-03-31

    申请号：US573266

    申请日：1990-08-24

    申请人： Sebastian S. Plamthottam ,  Earl W. McFeaters ,  Yehuda Ozari ,  Prakash Mallya

    发明人： Sebastian S. Plamthottam ,  Earl W. McFeaters ,  Yehuda Ozari ,  Prakash Mallya

    IPC分类号： C09J7/02

    CPC分类号： C09J7/02 ,  Y10T428/2809 ,  Y10T428/2848 ,  Y10T428/2883 ,  Y10T428/2891

    摘要： A pressure sensitive adhesive tape comprises a carrier layer having a thickness of 0.25 to 2.0 millimeter and comprising an electron beam cured pressure sensitive adhesive matrix, 10 to 20% by volume low density microspheres and at least one pigment in an amount sufficient to color the tape. Preferably, fumed silica is present in an amount up to 5% by weight. The tape preferably has a kin layer on each side of the carrier layer. The skin layer has a coating thickness of 25 to 125 g/m.sup.2 and comprises a pressure sensitive adhesive matrix free of rigid, low density microspheres. The process comprises first preparing an adhesive composition containing electron beam-curable adhesive polymer matrix, fillers and solvent. The composition is introduced and conveyed through a twin screw extruder. In the extruder, solvent is removed in one or more solvent removal units, and a solvent-free composition is extruded as the carried layer. Skin layers may be co-extruded with the carrier layer.

    摘要翻译： 压敏粘合带包括厚度为0.25至2.0毫米的载体层，其包含电子束固化的压敏粘合剂基质，10至20体积％的低密度微球和至少一种颜料，其量足以使带 。 优选地，煅制二氧化硅以高达5重量％的量存在。 胶带优选在载体层的每一侧上具有一个结合层。 表皮层的涂层厚度为25〜125g / m 2，包含不含刚性，低密度微球的压敏粘合剂基体。 该方法包括首先制备含有电子束可固化粘合剂聚合物基质，填料和溶剂的粘合剂组合物。 将组合物通过双螺杆挤出机引入和输送。 在挤出机中，在一个或多个溶剂去除单元中除去溶剂，并且将不含溶剂的组合物作为载带被挤出。 皮肤层可以与载体层共挤出。

    Suspension polymerization in an organic medium
    10.
    发明授权
    Suspension polymerization in an organic medium 失效
    在有机介质中悬浮聚合

    公开(公告)号：US4810763A

    公开(公告)日：1989-03-07

    申请号：US138509

    申请日：1987-12-23

    申请人： Prakash Mallya ,  Yehuda Ozari

    发明人： Prakash Mallya ,  Yehuda Ozari

    IPC分类号： C08F2/14 ,  C08F2/00 ,  C08F2/08 ,  C08F2/18 ,  C08F2/20 ,  C08F20/10 ,  C08F212/00 ,  C08F212/08 ,  C08F220/12 ,  C09J7/02 ,  C09J133/04 ,  C09J133/06 ,  C09J133/08

    CPC分类号： C09J7/0217 ,  C08F2/08 ,  Y10S526/931

    摘要： Inherently tacky infusible pressure-sensitive adhesive microspheres are prepared by polymerizing at least one monomer which when polymerized will form a pressure-sensitive adhesive having a glass transition temperature less than abotu -20.degree. C. in an organic medium in which the monomer is substantially insoluble and in the presence of a surfactant and a suspension stabilizer which are soluble in the organic medium and substantially insoluble in the monomer under conditions of shear sufficient to form suspended particles of a size less than 200 microns. A monomer soluble initiator is preferably employed. The preferred media are ethylene glycol and glycerol and the preferred monomers are 2-ethyl hexyl acrylate and methacrylic acid.

    摘要翻译： 通过聚合至少一种单体来制备固有粘性的不可压敏粘合剂微球，所述单体当聚合时将形成玻璃化转变温度低于-20℃的压敏粘合剂，其中单体基本上不溶于有机介质 并且在表面活性剂和悬浮稳定剂存在下，其可溶于有机介质并且在剪切条件下基本上不溶于单体的悬浮稳定剂足以形成小于200微米的悬浮颗粒。 优选使用单体可溶性引发剂。 优选的介质是乙二醇和甘油，优选的单体是丙烯酸2-乙基己酯和甲基丙烯酸。