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    • 4. 发明授权
    • Microcapsule and micromatrix bodies and method for their formation
    • 微胶囊和微阵体及其形成方法
    • US4931362A
    • 1990-06-05
    • US233667
    • 1988-08-18
    • Wilhelm ZsifkovitsBurghard GruningHans-Joachim KollmeierDietmar SchaeferChristian Weitemeyer
    • Wilhelm ZsifkovitsBurghard GruningHans-Joachim KollmeierDietmar SchaeferChristian Weitemeyer
    • B01J13/18B41M5/165
    • B01J13/18B01J13/185B41M5/165Y10S514/963Y10S514/965Y10T428/2985Y10T428/2987
    • An organic phase which comprises a water-insoluble material to be encapsulated, a capsule-forming or matrix-forming monomer or prepolymer and, should this be desirable, a solvent, is dispersed in droplet form in an aqueous phase. The capsule-forming or matrix-forming monomer or prepolymer forms a sheath around the material to be encapsulated. As a capsule-forming or matrix-forming monomer, an organosilicon compound of the general formula ##STR1## is used, wherein R.sup.1 is a linear or branched, saturated or unsaturated, n-functional hydrocarbon moiety, which may be interrupted by groups containing oxygen, nitrogen or sulfur; R.sup.2 and R.sup.3 are the same or different and represent a hydrocarbon moiety with 1 to 6 carbon atoms or X; X is a hydroxyl group or a hydrolyzable group and n is a whole number greater than or equal to 1, with the proviso that, when n=1, R.sup.1 has at least 12 carbon atoms and R.sup.2 and R.sup.3 represent X or a prepolymer hereof. The method can be carried out easily and requires only one compound to form the capsules or micromatrix bodies. In the implementation of the method, no foam occurs and the method results in end products with an acceptable shelf life.
    • 包含待包封的水不溶性材料,胶囊形成或基质形成单体或预聚物的有机相,并且如果这是期望的话,溶剂以水滴形式分散在水相中。 胶囊形成或基质形成单体或预聚物在待包被材料周围形成鞘。 作为胶囊形成或基质形成单体,使用通式“IMAGE”的有机硅化合物,其中R 1是直链或支链饱和或不饱和的正构官能烃部分,其可以被含氧的基团中断 ,氮或硫; R2和R3相同或不同,表示具有1至6个碳原子的烃部分或X; X是羟基或可水解基团,n是大于或等于1的整数,条件是当n = 1时,R 1具有至少12个碳原子,R 2和R 3表示X或其预聚物。 该方法可以容易地进行,并且仅需要一种化合物来形成胶囊或微阵列体。 在该方法的实施中,不发生泡沫,并且该方法导致最终产品具有可接受的保质期。