Encapsulated active materials
    1.
    发明授权
    Encapsulated active materials 有权
    封装的活性物质

    公开(公告)号:US06224793B1

    公开(公告)日:2001-05-01

    申请号:US09300339

    申请日:1999-04-27

    IPC分类号: B01J1302

    摘要: The invention is an encapsulated active agent comprising an active agent encapsulated in a crystallizable or thermoplastic polymer wherein the particle size of the encapsulated active agent is 3,000 microns or less wherein the active agent is not significantly extractable from the particles under ambient conditions. In another embodiment the invention is a process for preparing an encapsulated agent which comprises a) contacting an active agent with a crystallizable or thermoplastic polymer wherein the polymer is molten and the active agent in not volatile under the contacting conditions; b) forming particles of about 3000 microns or less; and c) exposing the particles to conditions such that the portion of the particle at and near the surface undergoes rapid solidification. The encapsulated active agents of the invention do not require washing in order for them to be stable in curable compositions. These encapsulated active agents can be designed to release the active agent at a desired temperature. The encapsulated agents of the invention demonstrate excellent stability at ambient temperatures and exhibit relatively rapid reactivity upon release of the active agent. Furthermore, the presence of the encapsulating agent does not result in deterioration of adhesive or elastomer properties of a cured composition after preparation.

    摘要翻译: 本发明是一种包封的活性剂,其包含包封在可结晶或热塑性聚合物中的活性剂,其中包封的活性剂的粒径为3,000微米或更小,其中活性剂在环境条件下不能从颗粒中显着提取。 在另一个实施方案中,本发明是一种制备包封剂的方法,其包括:a)使活性剂与可结晶或热塑性聚合物接触,其中聚合物熔融,活性剂在接触条件下不挥发; b)形成约3000微米或更小的颗粒; 和c)将颗粒暴露于使表面处和附近的颗粒部分快速凝固的条件。 本发明的包封的活性剂不需要洗涤,以使它们在可固化组合物中稳定。 这些包封的活性剂可以设计成在所需温度下释放活性剂。 本发明的包封的试剂在环境温度下表现出优异的稳定性,并且在释放活性剂时表现出相对快速的反应性。 此外,包封剂的存在不会导致制备后的固化组合物的粘合剂或弹性体性能的劣化。

    Acrylic-modified epoxy resin adhesive compositions with improved
rheological control
    3.
    发明授权
    Acrylic-modified epoxy resin adhesive compositions with improved rheological control 失效
    丙烯酸改性环氧树脂粘合剂组合物具有改进的流变学控制

    公开(公告)号:US5204386A

    公开(公告)日:1993-04-20

    申请号:US896730

    申请日:1992-06-09

    IPC分类号: C08F283/10 C09J163/00

    摘要: A thixoropic adhesive composition exhibiing good sag resistance is prepared comprising a mixture of a polymer-modified epoxy resin and a rheological control agent. The polymer-modified epoxy resin is preferably a dispersion of acrylic elastomer in an epoxy resin in which the acrylic elastomer particles have added hydroxyl functionality which interacts favorably with rheological control agents, such as fumed silica. Acrylic epoxy resin dispersions containing added hydroxyl functionality give improved rheological control.

    摘要翻译: 制备具有良好抗流挂性的触变胶粘剂组合物,其包含聚合物改性环氧树脂和流变控制剂的混合物。 聚合物改性的环氧树脂优选是丙烯酸弹性体在环氧树脂中的分散体,其中丙烯酸弹性体颗粒已经加入与流变控制剂如热解法二氧化硅有利的羟基官能团。 含有添加羟基官能团的丙烯酸环氧树脂分散体可改善流变学控制。

    Radiation-curable resins
    4.
    发明授权
    Radiation-curable resins 失效
    可辐射固化树脂

    公开(公告)号:US4798877A

    公开(公告)日:1989-01-17

    申请号:US720769

    申请日:1985-04-08

    CPC分类号: C08F299/026 C08G59/1433

    摘要: Novel radiation-curable, water-compatible, resinous compositions result from (1) terminally unsaturated molecules which are the esters of an epoxy compound and (2) the reaction product of a glycidyl ether and an unsaturated acid having at least one glycidyl group per molecule converted to an onium salt of a quaternary ammonium or amine salt, with the anion of an inorganic or organic acid.

    摘要翻译: 新的可辐射固化的水溶性树脂组合物来自(1)作为环氧化合物的酯的末端不饱和分子和(2)每分子具有至少一个缩水甘油基的缩水甘油醚和不饱和酸的反应产物 转化为季铵盐或胺盐的鎓盐与无机或有机酸的阴离子。

    Addition polymerizable adducts for nonaqueous dispersions
    5.
    发明授权
    Addition polymerizable adducts for nonaqueous dispersions 失效
    用于非水分散体的加成聚合加合物

    公开(公告)号:US4640935A

    公开(公告)日:1987-02-03

    申请号:US732118

    申请日:1985-05-09

    摘要: An adduct of a heteroatomic monomer, e.g., gamma-methacryloxypropyl trimethoxysilane and a monoahl, e.g., a monohydroxyl polyalkylene oxide or a polyahl, e.g., a polypropylene glycol, is usefully employed in the preparation of stable copolymer dispersions of the type used in the production of polyurethane foams and polyurethane elastomers.The copolymer dispersion is prepared by addition copolymerization of (1) the adduct with (2) ethylenically unsaturated monomer(s), e.g., styrene or mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of a polyahl, i.e., an active hydrogen polyfunctional compound.

    摘要翻译: 杂原子单体,例如γ-甲基丙烯酰氧基丙基三甲氧基硅烷和单烯烃,例如单羟基聚环氧烷或多烯烃,例如聚丙二醇的加合物,有用地用于制备用于生产的类型的稳定的共聚物分散体 的聚氨酯泡沫和聚氨酯弹性体。 通过(1)加合物与(2)烯属不饱和单体(例如苯乙烯或其混合物)与丙烯腈的加成共聚合制备共聚物分散体,而(1)和(2)分散或溶解在过量的 多元醇,即活性氢多官能化合物。

    Process for the preparation of radiation-curable, water-thinnable vinyl
ester resins
    7.
    发明授权
    Process for the preparation of radiation-curable, water-thinnable vinyl ester resins 失效
    用于制备可辐射固化的,可水解的乙烯基酯树脂的方法

    公开(公告)号:US4431782A

    公开(公告)日:1984-02-14

    申请号:US456225

    申请日:1983-01-07

    摘要: Sulfonium-stabilized, water-compatible, radiation-curable vinyl ester resins are prepared by the process of reacting an epoxy resin having on the average at least one vicinal epoxy group with a mercaptan and with an unsaturated monocarboxylic acid to form vinyl ester resins containing sulfide moieties which are then reacted with a protonic acid and an alkylene oxide.Compounds so prepared can be diluted with water and used as coatings.

    摘要翻译: 通过使具有平均至少一个邻位环氧基的环氧树脂与硫醇和不饱和一元羧酸反应形成含硫化物的乙烯基酯树脂的方法制备锍稳定的水溶性的可辐射固化的乙烯基酯树脂 然后其与质子酸和烯化氧反应。 如此制备的化合物可以用水稀释并用作涂层。

    Radiation-curable resins
    8.
    发明授权
    Radiation-curable resins 失效
    可辐射固化树脂

    公开(公告)号:US4338232A

    公开(公告)日:1982-07-06

    申请号:US137706

    申请日:1980-04-07

    摘要: Novel sulfonium-stabilized, radiation-curable, water-compatible, water-in-oil emulsions and a method of preparation are described. As an example, one such emulsion was prepared by reacting the diglycidyl ether of a polypropylene glycol with essentially a stoichiometric equivalent of acrylic acid, about 0.3 equivalent of bis(2-hydroxyethyl)-sulfide and 1.5 equivalents of H.sub.2 O.

    摘要翻译: 描述了新的锍稳定的,可辐射固化的,水相容的油包水乳液和制备方法。 作为实例,通过使聚丙二醇的二缩水甘油醚与基本上化学计量当量的丙烯酸,约0.3当量的双(2-羟乙基) - 硫化物和1.5当量的H 2 O反应来制备一种这样的乳液。

    One-part curable polyurethane adhesive
    10.
    发明授权
    One-part curable polyurethane adhesive 失效
    单组分可固化聚氨酯胶粘剂

    公开(公告)号:US6133398A

    公开(公告)日:2000-10-17

    申请号:US291146

    申请日:1999-04-13

    摘要: The present invention is a one-part adhesive composition comprising:A) an isocyanate functional polyurethane prepolymer;B) a catalyst capable of catalyzing the reaction of isocyanate moieties with an isocyanate reactive compound;C) particles comprising a curing agent for an isocyanate functional. polyurethane prepolymer encapsulated within a coating material;wherein the prepolymer has a free isocyanate content of from about 0.8 to about 2.2 percent. In another embodiment the invention is a process for bonding two substrates together which comprises rupturing the encapsulated curing agent particles so as to contact the curing agent with the prepolymer in the adhesive composition, contacting the adhesive composition of the invention with at least one of the substrates and contacting the substrates together along the portion of the substrate(s) to which the adhesive has been applied before the adhesive applied cures and allowing the adhesive to cure and bond the substrates together.

    摘要翻译: 本发明是一种单组分粘合剂组合物,其包含:A)异氰酸酯官能聚氨酯预聚物; B)能够催化异氰酸酯部分与异氰酸酯反应性化合物的反应的催化剂; C)包含异氰酸酯官能团的固化剂的颗粒。 包封在涂料中的聚氨酯预聚物; 其中所述预聚物的游离异氰酸酯含量为约0.8至约2.2%。 在另一个实施方案中,本发明是用于将两个基底结合在一起的方法,其包括使包封的固化剂颗粒破裂,以使固化剂与粘合剂组合物中的预聚物接触,使本发明的粘合剂组合物与至少一个底物接触 并且在粘合剂施加之前沿着已经施加有粘合剂的基底的部分将基底接触在一起,并且使粘合剂固化并将基底粘合在一起。