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1. 发明授权

US4490313A Capsule manufacture 失效
标题翻译：胶囊制造
公开(公告)号：US4490313A
公开(公告)日：1984-12-25
申请号：US460704
申请日：1983-01-24
申请人： Robert W. Brown , Richard P. Bowman
发明人： Robert W. Brown , Richard P. Bowman
IPC分类号： B01J13/02 , B01J13/18 , B41M5/165
CPC分类号： B01J13/18 , B41M5/165 , Y10T428/2985
摘要： A process is disclosed for performing encapsulation, en masse, by an in situ polymerization reaction to yield capsule wall material. The reaction comprises the polymerization of urea and formaldehyde, monomeric or low molecular weight polymers of dimethylol urea or methylated dimethylol urea, melamine and formaldehyde, monomeric or low molecular weight polymers of methylol melamine or methylated methylol melamine, in an aqueous vehicle and the reaction is conducted in the presence of mixtures of poly-electrolyte material, esp. poly(acrylic acid), and polystyrene sulfonic acid and/or salts thereof in certain critical proportions. The disclosed encapsulation process provides improved resistance of the emulsion of intended capsule core material to destabilization and permits the manufacture of micro-capsules with improved drop size distribution.
摘要翻译：公开了一种通过原位聚合反应进行包封以产生胶囊壁材料的方法。该反应包括尿素和甲醛，羟丙基脲或甲基化二羟甲基脲，三聚氰胺和甲醛的单体或低分子量聚合物，羟甲基三聚氰胺或甲基化羟甲基三聚氰胺的单体或低分子量聚合物在水性载体中的聚合反应，在多电解质材料的混合物存在下进行，聚丙烯酸，聚苯乙烯磺酸和/或其盐。所公开的封装方法提供了预期的胶囊核心材料的乳液对于不稳定性的改进的阻力，并允许制造具有改进的液滴尺寸分布的微胶囊。

2. 发明授权

US4552811A Capsule manufacture 失效
标题翻译：胶囊制造
公开(公告)号：US4552811A
公开(公告)日：1985-11-12
申请号：US619967
申请日：1984-06-12
申请人： Robert W. Brown , Richard P. Bowman
发明人： Robert W. Brown , Richard P. Bowman
IPC分类号： B01J13/18 , B41M5/165 , B01J13/02
CPC分类号： B01J13/18 , B41M5/165 , Y10S428/914 , Y10T428/2985
摘要： A process is disclosed for performing encapsulation, en masse, by an in situ polymerization reaction to yield capsule wall material. The reaction comprises the polymerization of urea and formaldehyde, or monomeric or low molecular weight polymers of dimethylol urea or methylated dimethylol urea, melamine and formaldehyde, monomeric or low molecular weight polymers of methylol melamine or methylated methylol melamine, in an aqueous vehicle and the reaction is conducted in the presence of certain acrylic acid copolymers. The disclosed encapsulation process provides improved resistance of the emulsion of intended capsule core material to destabilization and permits the manufacture of microcapsules with improved drop size distribution, improved resistance to frictional smudge damage and enhanced impermeability.
摘要翻译：公开了一种通过原位聚合反应进行包封以产生胶囊壁材料的方法。该反应包括在水性载体中尿素和甲醛或二羟甲基脲或甲基化二羟甲基脲，三聚氰胺和甲醛的单体或低分子量聚合物，羟甲基三聚氰胺或甲基化羟甲基三聚氰胺的单体或低分子量聚合物的聚合反应，在某些丙烯酸共聚物存在下进行。所公开的封装方法提供了预期的胶囊核心材料的乳液对于稳定化的改进的阻力，并且允许制造具有改进的液滴尺寸分布的微胶囊，改进的抗摩擦污迹损伤的抗性和增强的不渗透性。

3. 发明授权

US4675249A Capsule manufacture 失效
标题翻译：胶囊制造
公开(公告)号：US4675249A
公开(公告)日：1987-06-23
申请号：US846420
申请日：1986-03-31
申请人： Richard P. Bowman
发明人： Richard P. Bowman
IPC分类号： B01J13/18 , B41M5/165 , B01J13/02
CPC分类号： B01J13/18 , B41M5/165 , Y10S428/914 , Y10T428/2985
摘要： A process is disclosed for performing encapsulation, en masse, by an in situ polymerization reaction to yield capsule wall material. The reaction comprises the polymerization of urea and formaldehyde, or monomeric or low molecular weight polymers of dimethylol urea or methylated dimethylol urea, melamine and formaldehyde, monomeric or low molecular weight polymers of methylol melamine or methylated melamine, in an aqueous vehicle and the reaction is conducted in the presence of certain acrylic acid copolymers. The disclosed encapsulation process provides improved resistance of the emulsion of intended capsule core material to destabilization and permits the manufacture of microcapsules with improved drop size distribution, improved resistance to frictional smudge damage and enhanced impermeability.
摘要翻译：公开了一种通过原位聚合反应进行包封以产生胶囊壁材料的方法。该反应包括在水性载体中尿素和甲醛或二羟甲基脲或甲基化二羟甲基脲，三聚氰胺和甲醛的单体或低分子量聚合物，羟甲基三聚氰胺或甲基化三聚氰胺的单体或低分子量聚合物的聚合反应，在某些丙烯酸共聚物存在下进行。所公开的封装方法提供了预期的胶囊核心材料的乳液对于稳定化的改进的阻力，并且允许制造具有改进的液滴尺寸分布的微胶囊，改进的耐摩擦涂抹损伤和增强的不渗透性。

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