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    Process for encapsulating dissolved reactants of color-reaction systems, the capsules obtainable therefrom as well as their use in color-reaction papers
    141.
    发明申请
    Process for encapsulating dissolved reactants of color-reaction systems, the capsules obtainable therefrom as well as their use in color-reaction papers 有权
    用于包封颜色反应体系的溶解反应物的方法，由其获得的胶囊以及它们在彩色反应纸中的用途

    公开(公告)号：US20050191488A1

    公开(公告)日：2005-09-01

    申请号：US10665381

    申请日：2003-09-18

    Applicant: Gunter Pietsch

    Inventor： Gunter Pietsch

    IPC: B01J13/02 ,  B01J13/10 ,  B01J13/16 ,  B32B9/00

    CPC classification number: B01J13/10 ,  B01J13/02 ,  B01J13/16 ,  Y10T428/2984 ,  Y10T428/2985

    Abstract: A process is described for encapsulating a solution of color reactants of color-reaction systems present in an aqueous emulsion accomplished by means of conventional microencapsulation processes, in which the color reactant is first dissolved in a solvent and a non-dissolver, which may insignificantly dissolve the color reactant, is mixed into the resulting solution in an amount that establishes a supersaturated solution while mixing at high speed, the supersaturated solution is emulsified immediately in the aqueous phase while mixing at high speed, and immediately thereupon the encapsulation is performed. A vegetable oil C1-C8 alkyl ester is used as the solvent. This process has economic and technological advantages. For example, it can be used to produce microcapsules that have an advantageous narrow monomodal particle distribution, which results in improved writing performance.

    Abstract translation: 描述了一种方法，用于封装存在于通过常规微胶囊化方法完成的水性乳液中的着色反应体系的显色反应物的溶液，其中颜色反应物首先溶解在溶剂中，并且可以不显着溶解 将颜料反应物以一定速度混合，形成过饱和溶液，同时高速混合，立即在水相中乳化过饱和溶液，然后立即进行封装。 使用植物油C 1 -C 8烷基酯作为溶剂。 这个过程有经济和技术上的优势。 例如，它可用于生产具有有利的窄单峰粒子分布的微胶囊，这导致书写性能的改善。

    Microcapsule and production method thereof
    143.
    发明申请
    Microcapsule and production method thereof 审中-公开
    微胶囊及其制备方法

    公开(公告)号：US20040169298A1

    公开(公告)日：2004-09-02

    申请号：US10714950

    申请日：2003-11-18

    Applicant: Shin-Etsu Chemical Co., Ltd.

    Inventor： Miyuki Fukasawa ,  Kazuhisa Hayakawa

    IPC: B32B001/00

    CPC classification number: A61K8/73 ,  A01N25/28 ,  A61K8/11 ,  A61K8/673 ,  A61K8/678 ,  A61K8/731 ,  A61K9/5036 ,  A61K9/5042 ,  A61K2800/412 ,  A61Q19/00 ,  B01J13/10 ,  Y10T428/2984

    Abstract: Provided are a microcapsule and a production method thereof using a low-toxicity polymer substrate which can be produced regardless of a core material's water or oil solubility, without using gelatin or an organic solvent viewed as having a problem with safety. Specifically, provided is a microcapsule comprising oil-based core material which is immiscible with water; and shell material which comprises gum arabic and an enteric anionic cellulose derivative. Also provided is a method for producing a microcapsule comprising steps of suspending an oil-based water-immiscible core material in an aqueous solution of gum arabic, and then adding an aqueous alkaline solution of an enteric anionic cellulose derivative.

    Abstract translation: 本发明提供一种使用低毒性聚合物基材的微胶囊及其制造方法，不管核心材料的水分或油溶性如何，都可以制造，而不使用明胶或有机溶剂作为安全问题。 具体地说，提供了与水不混溶的油性芯材的微胶囊， 和包含阿拉伯树胶和肠溶阴离子纤维素衍生物的壳材料。 还提供了一种生产微胶囊的方法，包括将油性水不混溶的芯材悬浮在阿拉伯树胶水溶液中，然后加入肠溶性阴离子纤维素衍生物的碱性水溶液的步骤。

    Method for production of microcapsules
    144.
    发明授权
    Method for production of microcapsules 有权
    微胶囊生产方法

    公开(公告)号：US06716456B1

    公开(公告)日：2004-04-06

    申请号：US10019363

    申请日：2001-10-25

    Applicant: Luigi Giovanni Mapelli ,  Luca Dobetti

    Inventor： Luigi Giovanni Mapelli ,  Luca Dobetti

    IPC: A61K950

    CPC classification number: B01J13/10

    Abstract: The invention provides a process for microencapsulating a pharmaceutical substrate comprising the steps of: a) adding insoluble or sparingly soluble particles of the substrate to be microencapsulated to a stable buffer solution having a high ionic strength; b) dissolving a membrane-forming ionic polymer in the buffer; c) forming a coacervate by adding a water-complexing compound causing phase separation of the resulting mixture; and d) allowing the deposition of the coacervate onto the substrate so as to create a coating of polymer around the substrate.

    Abstract translation: 本发明提供了一种用于微胶囊化药物底物的方法，包括以下步骤：a）将待微胶囊化的底物的不溶性或微溶性颗粒加入到具有高离子强度的稳定缓冲溶液中; b）将形成膜的离子聚合物溶解在缓冲液中; c）通过加入导致所得混合物相分离的水络合化合物形成凝聚层; 和d）允许将凝聚层沉积到基底上，以便在基底周围形成聚合物涂层。

    Process for homogeneously dispersing at least one reactant in a fluid matrix, and products obtained
    147.
    发明授权
    Process for homogeneously dispersing at least one reactant in a fluid matrix, and products obtained 失效
    将至少一种反应物均匀分散在流体基质中的方法和获得的产物

    公开(公告)号：US5928126A

    公开(公告)日：1999-07-27

    申请号：US759707

    申请日：1996-12-06

    Applicant: Philippe Guillot

    Inventor： Philippe Guillot

    IPC: B01J13/04 ,  B01J13/02 ,  B01J13/10 ,  B41M5/165 ,  C09D11/00 ,  C09D11/02 ,  C09D11/10 ,  B01F3/22 ,  B05B5/025

    CPC classification number: C09D11/02 ,  B01J13/02 ,  B01J13/10 ,  B41M5/165 ,  Y10S252/962 ,  Y10S516/928 ,  Y10T428/249997

    Abstract: A process for homogeneously dispersing at least one reactant in a fluid matrix, characterized in that capsules of a first type containing the reactant(s) are prepared with a first encapsulation product and capsules of a second type containing the fluid matrix are prepared with a second encapsulation product which is compatible with the first, these two types of capsules bearing electric charges of opposite polarity, the capsules of the two types are combined by electric attraction and the first and second encapsulation products are removed so as to obtain a composite material consisting of the fluid matrix containing the reactant(s) in homogeneous dispersion form, and products obtained according to this process.

    Abstract translation: 一种将至少一种反应物均匀分散在流体基质中的方法，其特征在于，用第一包封产物制备含有反应物的第一类型的胶囊，并且用第二种类型的第二种类型的胶囊制备含有流体基质的胶囊 与第一种这种两种类型的带有相反极性电荷的胶囊相容的胶囊产品，两种类型的胶囊通过电吸引组合，并且去除第一和第二包封产品，以获得由 包含均匀分散体形式的反应物的流体基质，以及根据该方法获得的产物。

    Microcapsules containing hydrophobic liquid core
    149.
    发明授权
    Microcapsules containing hydrophobic liquid core 失效

    公开(公告)号：US5112688A

    公开(公告)日：1992-05-12

    申请号：US624484

    申请日：1990-12-06

    Applicant: Daniel W. Michael

    Inventor： Daniel W. Michael

    IPC: A61K8/00 ,  A23L27/00 ,  A61K8/11 ,  A61Q13/00 ,  B01J13/02 ,  B01J13/10 ,  C11B9/00 ,  D06M13/00 ,  D06M23/12

    CPC classification number: A61K8/11 ,  A23L27/72 ,  A61Q13/00 ,  B01J13/02 ,  B01J13/10 ,  D06M13/005 ,  D06M23/12 ,  A61K2800/412 ,  Y10T428/2984

    Abstract: Microcapsules which are prepared using coacervation processes and/or which have a complex structure in which there is a large central core of encapsulated material, preferably perfume, and the walls contain small wall inclusion particles of either the core material or some other material that can be activated to disrupt the wall are disclosed. The microcapsules that are prepared by coacervation and contain perfume are especially desirable for inclusion in fabric softener compositions that have a pH of about 7 or less and which contain cationic fabric softener. The encapsulated perfume preferably does not contain large amounts of relatively water-soluble ingredients. Such ingredients are added separately to the fabric softener compositions. Ingredients that have high and low volatilities as compared to, e.g., the desired perfume, can either be added to, or removed from, the perfume to achieve the desired volatility.

    High solids, low viscosity carbonless paper gelatin base microcapsule system
    150.
    发明授权
    High solids, low viscosity carbonless paper gelatin base microcapsule system 失效
    高固含量，低粘度无碳纸明胶基微胶囊系统

    公开(公告)号：US5064470A

    公开(公告)日：1991-11-12

    申请号：US385652

    申请日：1989-07-27

    Applicant: Joseph A. Scarpelli

    Inventor： Joseph A. Scarpelli

    IPC: B01J13/10 ,  B41M5/165

    CPC classification number: B01J13/10 ,  B41M5/165 ,  Y10T428/2984

    Abstract: This disclosure is directed to a high solid, low viscosity carbonless paper gelatin base microcapsule system producing microcapsules having sizes characteristically from about 3 to about 10 microns (micrometers) and being characterized as single oil drop microcapsules. This system of microcapsules is further characterized by a high solids content, viz., from about 25 to about 50 weight percent solids, in combination with a low viscosity, viz., ranging from about 10 to about 60 centipoises and having a high microcapsule payload (core concentration by weight based on total capsule weight), e.g., of 80+ wt. % and preferably about 90 weight percent and higher, in aqueous suspensions. The combination of high solid content and high microcapsule payload, with low viscosity enables delivery of a high concentration of solid microcapsules at reasonably high coating speeds via comparatively inexpensive conventional pumping systems and paper coating systems. The present gelatin based microcapsule system is arrived at by blending low Bloom strength gelatin, e.g., about 100 to 200 Bloom strength, with a blend of at least two anionic phase inducers comprising (1) sodium hexametaphosphate (SHMP), and at least one of: (2) a copolymer of vinyl methyl ether and maleic anhydride (PVM/MA), (3) a copolymer of ethylene and maleic anhydride (E/MA), (4) gum arabic and (5) carboxy methyl cellulose (CMC).

    Abstract translation: 本公开涉及高固体，低粘度无碳纸明胶基微胶囊系统，其产生具有约3至约10微米（μm）特征的微粒并且被表征为单一油滴微胶囊。 该微胶囊体系的进一步特征在于高固体含量，即约25至约50重量％的固体，与低粘度组合，即约10至约60厘泊并具有高微胶囊有效载荷 （基于总胶囊重量的核心浓度重量），例如，80重量％ ％，优选约90重量％及更高。 具有低粘度的高固体含量和高微胶囊有效载荷的组合使得能够通过相当便宜的常规泵送系统和纸张涂布系统以合适的高涂层速度输送高浓度的固体微胶囊。 本发明的基于明胶的微胶囊体系是通过将低膨胀强度明胶（例如约100至200）的布朗强度与至少两种阴离子相诱导剂的混合物混合而得到的，所述阴离子相诱导剂包含（1）六偏磷酸钠（SHMP）和至少一种 （2）乙烯基甲基醚和马来酸酐（PVM / MA）的共聚物，（3）乙烯和马来酸酐的共聚物（E / MA），（4）阿拉伯胶和（5）羧甲基纤维素（CMC） 。

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