Encapsulated structural adhesive
    7.
    发明授权
    Encapsulated structural adhesive 有权
    封装结构胶

    公开(公告)号:US07678847B2

    公开(公告)日:2010-03-16

    申请号:US11451833

    申请日:2006-06-13

    IPC分类号: C08K9/10 B32B27/04

    摘要: The invention teaches an encapsulated curable adhesive composition especially adapted for use as a structural adhesive. The adhesive composition enables formation of a thin layer reactive composition of microcapsules and a two-part curative. The adhesive composition comprises a first population of microcapsules encasing a monomer and a first-part curative comprising an initiator. The adhesive composition further comprises a second-part curative. The second-part curative comprises an activator and a catalyst. At least the activator of the second-part curative is preferably encapsulated in a second population of microcapsules. The catalyst and the second population of microcapsules can be dispersed in a binder material, along with the first population of microcapsules. The first population of microcapsules contain encapsulated within the core a monomer having a Tg 35° C. or less and the first-part curative. The first population microcapsules contain encapsulated within the core a monomer having a Tg 35° C. or less along with the first-part curative. The encapsulated monomer and first-part curative constitute a blend which is a free flowing liquid having a viscosity of less than 500 Cp (milliPascal-second), and more preferably less than 10 Cp (milliPascal-second). The first population of microcapsules with first-part curative, and a second-part curative and second population of microcapsules are dispersed in a binder material. Reactive contact of the monomer and first-part curative with the second-part curative is affected by exuding the respective capsule contents into reactive contact through breakage of the microcapsules such as an interference fit of the substrate or substrates to which the composition is applied.

    摘要翻译: 本发明教导了一种特别适合用作结构粘合剂的包封的可固化粘合剂组合物。 粘合剂组合物能够形成微胶囊的薄层反应性组合物和两部分固化剂。 粘合剂组合物包含包含单体的第一组微胶囊和包含引发剂的第一部分固化剂。 粘合剂组合物还包含第二部分固化剂。 第二部分治疗剂包括活化剂和催化剂。 至少第二部分固化剂的活化剂优选包封在第二组微胶囊中。 催化剂和第二批微胶囊可以与第一批微胶囊一起分散在粘合剂材料中。 第一批微胶囊包含核心内的Tg为35℃或更低的单体和第一部分固化剂。 第一种群微胶囊包含在核心内的具有Tg为35℃或更低的第一部分固化剂的单体。 包封的单体和第一部分固化剂构成混合物,其是具有小于500cp(毫帕·秒)的粘度的自由流动的液体,更优选小于10CPp(毫帕·秒)。 具有第一部分固化剂的第一批微胶囊和第二部分固化剂和第二批微胶囊分散在粘合剂材料中。 单体和第一部分固化剂与第二部分固化剂的反应性接触受到通过微胶囊的破坏而渗出相应的胶囊内容物变成反应性接触的影响,例如施加组合物的基底或基底的过盈配合。

    ENCAPSULATES
    8.
    发明申请
    ENCAPSULATES 审中-公开
    包封

    公开(公告)号:US20110294715A1

    公开(公告)日:2011-12-01

    申请号:US13116133

    申请日:2011-05-26

    IPC分类号: C11D17/08

    摘要: The present application relates to encapsulated, solid, water soluble benefit agents and products comprising such encapsulates, as well as processes for making and using such encapsulates and products comprising such encapsulates. In one aspect, the present application relates to a melamine formaldehyde and/or urea formaldehyde encapsulation process that offers a solution to the current encapsulation technologies issues.

    摘要翻译: 本申请涉及封装的,固体的,水溶性的有益试剂和包含这种封装物的产品,以及制备和使用这些包封物的方法以及包含这种封装物的产品。 一方面,本申请涉及三聚氰胺甲醛和/或尿素甲醛封装方法,其提供了当前封装技术问题的解决方案。

    UV curable coating material of encapsulated water dispersed core material
    10.
    发明申请
    UV curable coating material of encapsulated water dispersed core material 失效
    包封水分散芯材的紫外线固化涂料

    公开(公告)号:US20070197384A1

    公开(公告)日:2007-08-23

    申请号:US11358817

    申请日:2006-02-21

    申请人: Nianxi Yan

    发明人: Nianxi Yan

    IPC分类号: B41M5/20

    摘要: The present invention describes a process of preparing microcapsules in a UV curable water immiscible phase. The microcapsules formed according to the invention contain an aqueous phase core. The process comprises dispersing a water soluble or dispersible core material along with at least one wall forming prepolymer and a polycondensation polymerization catalyst into an aqueous solution. The aqueous phase is then dispersed into the water immiscible phase comprising UV curable monomers or oligomers forming droplets of the aqueous phase solution in the water immiscible phase. Polycondensation of the prepolymers is initiated to form polymeric wall material or microcapsules at or near the interface of the water immiscible solvent and droplets of aqueous phase solution. Following capsule formation, a UV initiator is dispersed in the water immiscible phase. The UV curable dispersion containing aqueous microcapsules can be coated on a substrate. The coating is then cured by UV irradiation forming a gelled, solidified, or dry coating of aqueous microcapsules.

    摘要翻译: 本发明描述了在UV固化水不混溶相中制备微胶囊的方法。 根据本发明形成的微胶囊含有水相核。 该方法包括将水溶性或可分散的芯材料与至少一种壁形成预聚物和缩聚聚合催化剂一起分散到水溶液中。 然后将水相分散到包含UV固化单体或低聚物的水不混溶相中,所述UV固化单体或低聚物在水不混溶相中形成水相溶液的液滴。 启动预聚物的缩聚以在水不混溶溶剂和水相溶液的界面处或附近形成聚合物壁材料或微胶囊。 胶囊形成后,UV引发剂分散在水不混溶相中。 含有水性微胶囊的UV固化分散体可以涂布在基材上。 然后通过UV照射固化涂层,形成凝胶化,固化或干燥的水性微胶囊涂层。