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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
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。
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公开(公告)号：US4230514A
公开(公告)日：1980-10-28
申请号：US928109
申请日：1978-07-26
CPC分类号： B42D5/02 , B41M5/124 , B42C3/00 , B42C9/0006 , Y10S156/908 , Y10S428/914 , Y10S462/90 , Y10T428/24793
摘要： A process for separating a collated stack of carbonless copy paper sheets into form sets, which comprises pretreating the edge of the stack of sheets to be padded with a non-aqueous material, drying, applying an adhesive composition, drying and separating the unit sets.
摘要翻译： 一种将成品堆叠的无碳复写纸片分离成成型组件的方法，其包括用非水性材料预处理待堆叠的片材的边缘，干燥，施加粘合剂组合物，干燥和分离单元组件的方法。
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公开(公告)号：US4100103A
公开(公告)日：1978-07-11
申请号：US755830
申请日：1976-12-30
CPC分类号： B01J13/18 , C08G12/32 , Y10S428/914 , Y10T428/2989
摘要： A process is disclosed for performing encapsulation, en masse, by an in situ polymerization reaction to yield capsule wall material. The polymerization comprises a reaction between melamine and formaldehyde and/or polycondensation of monomeric methylol melamine or etherified methylol melamine, or a low molecular weight polymer thereof, in an aqueous vehicle and the reaction is conducted in the presence of negatively-charged, carboxyl-substituted, linear aliphatic hydrocarbon polyelectrolyte material dissolved in the vehicle. Liquid-liquid phase separation is accomplished and maintained by increase in the molecular weight of the resulting condensation polymer without further dilution of the manufacturing vehicle. The negatively-charged polyelectrolyte material is required and has an apparent effect of controlling or modifying the polymerization reaction. The disclosed encapsulation process permits manufacture of micro-capsules in concentrations of capsule to capsule manufacturing vehicle higher than previously possible.
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。 聚合反应包括三聚氰胺和甲醛之间的反应和/或单体羟甲基三聚氰胺或醚化的羟甲基三聚氰胺或其低分子量聚合物在水性载体中的缩聚，并且反应在带负电荷的羧基取代的存在下进行 溶解在载体中的直链脂族烃聚电解质材料。 通过增加所得缩合聚合物的分子量而不进一步稀释制造车辆来实现和维持液 - 液相分离。 需要带负电荷的聚电解质材料，并具有控制或改性聚合反应的明显效果。 所公开的封装方法允许制造胶囊至胶囊制造车辆的浓度比以前更高的微胶囊。
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公开(公告)号：US4087376A
公开(公告)日：1978-05-02
申请号：US755832
申请日：1976-12-30
CPC分类号： B01J13/18 , Y10S428/914 , Y10T428/2987 , Y10T428/2989
摘要： A process is disclosed for performing encapsulation, en masse, by an in situ polymerization reaction to yield capsule wall material. The polymerization includes a reaction between urea and formaldehyde or polycondensation of monomeric or low molecular weight polymers of dimethylol urea or methylated dimethylol urea in an aqueous vehicle and the reaction is conducted in the presence of negatively-charged, carboxyl-substituted, linear aliphatic hydrocarbon polyelectrolyte material dissolved in the vehicle. Liquid-liquid phase separation is accomplished and maintained by increase in the molecular weight of the resulting condensation polymer without further dilution of the manufacturing vehicle. The negatively-charged polyelectrolyte material is required and has an apparent effect of controlling or modifying the polymerization reaction. The disclosed encapsulation process permits manufacture of microcapsules in concentrations of capsule to capsule manufacturing vehicle higher than previously possible.
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。 聚合包括尿素和甲醛之间的反应或水性载体中二羟甲基脲或甲基化二羟甲基脲的单体或低分子量聚合物的缩聚，并且反应在带负电的羧基取代的直链脂族烃聚电解质的存在下进行 溶解在车辆中的材料。 通过增加所得缩合聚合物的分子量而不进一步稀释制造车辆来实现和维持液 - 液相分离。 需要带负电荷的聚电解质材料，并具有控制或改性聚合反应的明显效果。 所公开的封装方法允许以胶囊制造车辆的浓度制造高于先前可能的胶囊的微胶囊。
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公开(公告)号：US4020777A
公开(公告)日：1977-05-03
申请号：US647648
申请日：1976-01-08
申请人： Robert W. Brown , Nico DEBoer
发明人： Robert W. Brown , Nico DEBoer
摘要： An at-sea buoy and anchor retrieval apparatus utilizes a vessel having a catamaran hull with a buoy catcher apparatus disposed between the hulls of the vessel. The buoy catcher is vertically movable so that it can be placed at the appropriate water depth to capture the buoys when the vessel is underway. A lift is provided to elevate the buoy catcher containing the buoy to the vicinity of an opening in the deck so that access to the buoy may be had from the deck.
摘要翻译： 海上浮标和锚索取出装置利用具有双体船船体的船舶，其中设置有在船体之间的浮标捕集装置。 浮标捕获器是可垂直移动的，使得它可以放置在适当的水深处以在船舶进行时捕获浮标。 提供电梯以将包含浮标的浮标捕获器升高到甲板上的开口附近，以便可以从甲板进入浮标。
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公开(公告)号：US3969466A
公开(公告)日：1976-07-13
申请号：US504015
申请日：1974-09-09
IPC分类号： C07C67/00 , C07C239/00 , C07C281/02 , C07C281/06 , C07C133/02
CPC分类号： C07C281/06
摘要： A process for preparing hydrazodicarbonamide directly from a ketazine and urea in water without any acid catalyst according to the following reaction is disclosed. ##EQU1## wherein the R groups may be the same or different.
摘要翻译： 公开了根据以下反应直接从酮连氮和尿素在水中制备肼基二酰胺的方法，没有任何酸催化剂。 R ANGLE C = N-N = C ANGLE + 2 H2N-CO-NH2 + 2H2O RR→H2N-CO-NHNH-CO-NH2 + R-CO-R + 2NH3其中R基团可以相同或不同。
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