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1. 发明授权

US4938900A Method for the preparation of microcapsules 失效
标题翻译：微胶囊的制备方法
公开(公告)号：US4938900A
公开(公告)日：1990-07-03
申请号：US174039
申请日：1988-03-28
申请人： Masafumi Moriwaki , Kei Etoh , Hiroyuki Sekihara
发明人： Masafumi Moriwaki , Kei Etoh , Hiroyuki Sekihara
IPC分类号： B01J13/18
CPC分类号： B01J13/18 , Y10T428/2985
摘要： Microcapsules are prepared by adding a methylolated melamine or methylolated urea to an aqueous emulsion of the core material dispersed in an aqueous solution of a styrene/maleic anhydride copolymer partially hydrolyzed in an alkaline condition and heating the mixture at 40.degree. to 90.degree. C. in an acidic condition so that a reaction product forming the capsule walls is produced by the esterification reaction between the carboxyl groups in the partial hydrolysis product and the methylol groups in the methylolated melamine or urea and the amidation reaction between the carboxylic anhydride groups in the former and the amino groups in the latter. By virtue of the three dimensional network structure, the capsule walls are very dense and highly resistant against heat, water and solvents.

2. 发明授权

US5798315A Microcapsule-containing oil-based coating liquid, ink, coated sheet, and method of preparing the same 失效
标题翻译：含微胶囊的油性涂料液，油墨，涂布片及其制备方法
公开(公告)号：US5798315A
公开(公告)日：1998-08-25
申请号：US797452
申请日：1997-02-06
申请人： Kei Etoh , Akira Hirasawa , Hisano Higurashi , Makoto Kawamura
发明人： Kei Etoh , Akira Hirasawa , Hisano Higurashi , Makoto Kawamura
IPC分类号： B41M5/165 , B41M5/28 , C09D11/02
CPC分类号： C09D11/02 , B41M5/165 , B41M5/287 , Y10T428/249997 , Y10T428/2984 , Y10T428/2985 , Y10T428/2987 , Y10T428/2989
摘要： A microcapsule-containing oil-based coating liquid wherein the coating liquid comprises a hydrophobic core material-containing microcapsule particles dispersed individually in a state of primary particle in an oil varnish for ink use or a resin for coating use, and a solvent having an affinity for both the varnish or the resin and the surface of the microcapsule wall material in a state of having been attracted with the affinity to both the varnish or the resin and the surface layer of the microcapsule wall material. The preferred solvent is a lower divalent or multivalent alcohol. A preparative method of the foregoing coating liquid by utilizing vacuum distillation is also proposed. A sheet, like a duplicating sheet of paper coated with the foregoing oil-based coating liquid is further provided. According to the present invention, a water-based microcapsules system can be advantageously converted into an oil-based one without coagulating the primary microcapsule particles. There is no hardening and breakdown of the wall material during the process, and the original strength and the flexibility of the microcapsule wall material can be retained intact. Conventional pressure transferring-type printing machine may be employed to printing a selected area of the sheet.
摘要翻译：一种含微胶囊的油性涂布液，其中，所述涂布液包含分散在油墨用油性油墨中的一次粒子状态的分散的含疏水性芯材料的微胶囊粒子，或者涂布用树脂，以及具有亲和性的溶剂对于清漆或树脂以及微胶囊壁材料的表面以与清漆或树脂和微胶囊壁材料的表面层的亲和性吸引的状态。优选的溶剂是低级二价或多价醇。还提出了通过利用真空蒸馏的上述涂布液的制备方法。进一步提供如同涂覆有上述油性涂料的复印纸一样的片材。根据本发明，可以有利地将水性微胶囊体系转化为油性微胶囊体系而不使一级微胶囊颗粒凝结。在该过程中没有壁材料的硬化和分解，并且微胶囊壁材料的原始强度和柔韧性可以保持完整。传统的压力传送型印刷机可用于印刷片材的选定区域。

3. 发明授权

US5646203A Microcapsule-containing oil-based coating liquid, ink, coated sheet, and method of preparing the same 失效
标题翻译：含微胶囊的油性涂料液，油墨，涂布片及其制备方法
公开(公告)号：US5646203A
公开(公告)日：1997-07-08
申请号：US413690
申请日：1995-03-30
申请人： Kei Etoh , Akira Hirasawa , Hisano Higurashi , Makoto Kawamura
发明人： Kei Etoh , Akira Hirasawa , Hisano Higurashi , Makoto Kawamura
IPC分类号： B41M5/165 , B41M5/28 , C09D11/02 , C08K5/053 , B32B5/18 , C08J9/32 , C08K7/22
CPC分类号： C09D11/02 , B41M5/165 , B41M5/287 , Y10T428/249997 , Y10T428/2984 , Y10T428/2985 , Y10T428/2987 , Y10T428/2989
摘要： A microcapsule-containing oil-based coating liquid wherein the coating liquid comprises a hydrophobic core material-containing microcapsule particles dispersed individually in a state of primary particle in an oil varnish for ink use or a resin for coating use, and a solvent having an affinity for both the varnish or the resin and the surface of the microcapsule wall material in a state of having been attracted with the affinity to both the varnish or the resin and the surface layer of the microcapsule wall material. The preferred solvent is a lower divalent or multivalent alcohol.A preparative method of the foregoing coating liquid by utilizing vacuum distillation is also proposed.A sheet, like a duplicating sheet of paper coated with the foregoing oil-based coating liquid is further provided.According to the present invention, a water-based microcapsules system can be advantageously converted into an oil-based one without coagulating the primary microcapsule particles. There is no hardening and breakdown of the wall material during the process, and the original strength and the flexibility of the microcapsule wall material can be retained intact. Conventional pressure transferring-type printing machine may be employed to printing a selected area of the sheet.
摘要翻译：一种含微胶囊的油性涂布液，其中，所述涂布液包含分散在油墨用油性油墨中的一次粒子状态的分散的含疏水性芯材料的微胶囊粒子，或者涂布用树脂，以及具有亲和性的溶剂对于清漆或树脂以及微胶囊壁材料的表面以与清漆或树脂和微胶囊壁材料的表面层的亲和性吸引的状态。优选的溶剂是低级二价或多价醇。还提出了通过利用真空蒸馏的上述涂布液的制备方法。进一步提供如同涂覆有上述油性涂料的复印纸一样的片材。根据本发明，可以有利地将水性微胶囊体系转化为油性微胶囊体系而不使一级微胶囊颗粒凝结。在该过程中没有壁材料的硬化和分解，并且微胶囊壁材料的原始强度和柔韧性可以保持完整。传统的压力传送型印刷机可用于印刷片材的选定区域。

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