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1. 发明授权

US06750297B2 Artificial pigment and method for preparing the same 有权
标题翻译：人造颜料及其制备方法
公开(公告)号：US06750297B2
公开(公告)日：2004-06-15
申请号：US10182438
申请日：2002-07-29
申请人： Seung-Uk Yeu , Ho-Yeul Choi , Chang-Sun Han , Wan-Sik Cha
发明人： Seung-Uk Yeu , Ho-Yeul Choi , Chang-Sun Han , Wan-Sik Cha
IPC分类号： C08F222
CPC分类号： D21H19/42 , C08F285/00 , C08F212/08
摘要： The present invention relates to an artificial pigment and a method of preparing the same, specifically, to an artificial pigment with excellent dry pick resistance and to a method of preparing the same. In order to accomplish the present invention, there is provided an artificial pigment of inverted core-shell structure comprising: a) a shell of butadiene polymer including: i) a seed of butadiene polymer having glass transition temperature of −10 to 50° C.; and ii) a seed covering of butadiene polymer having a glass transition temperature of −10 to 20° C.; and b) a core of styrene polymer having a glass transition temperature of 40 to 120° C. Also provided is method of preparing artificial pigment comprising: a) preparing a shell of butadiene polymer; and b) preparing a core of styrene polymer on the inner side of said shell of step a). The coating color comprising the artificial pigment of the present invention can make coated paper having excellent dry pick resistance anti high paper gloss and printing gloss as well as stiffness.
摘要翻译：人造颜料及其制备方法技术领域本发明涉及一种人造颜料及其制备方法，具体涉及具有优良抗干性的人造颜料及其制备方法。为了实现本发明，提供了一种倒置的核 - 壳结构的人造颜料，其包括：a）丁二烯聚合物的壳，包括：i）具有-10至50℃的玻璃化转变温度的丁二烯聚合物的种子 ; 和ii）玻璃化转变温度为-10〜20℃的丁二烯聚合物种子覆盖物; 和b）玻璃化转变温度为40〜120℃的苯乙烯聚合物的核心。还提供了制备人造颜料的方法，包括：a）制备丁二烯聚合物的壳; 和b）在步骤a）的所述壳的内侧制备苯乙烯聚合物的芯。包含本发明的人造颜料的涂料颜色可以使具有优异抗干性能的涂布纸具有高的纸张光泽和印刷光泽度以及刚度。

2. 发明授权

US07256229B2 Paper coating latex using ionic monomer 有权
标题翻译：使用离子单体的纸涂胶乳
公开(公告)号：US07256229B2
公开(公告)日：2007-08-14
申请号：US10493202
申请日：2002-10-08
申请人： Seung-Uk Yeu , Ho-Yeul Choi , Wan-Sik Cha , Seung-Hun Yang , Chang-Sun Han
发明人： Seung-Uk Yeu , Ho-Yeul Choi , Wan-Sik Cha , Seung-Hun Yang , Chang-Sun Han
IPC分类号： C08K5/42
CPC分类号： D21H19/58 , C08F236/10 , C08F2/38 , C08F2/22
摘要： The present invention discloses a paper coating latex containing copolymeric ionic monomer, a paper coating composition containing thereof, and a paper coated with the composition. More specifically, the present invention provides a styrene-butadiene latex for paper coating which contains sodium methallyl sulfonate, an ionic monomer copolymerizing with monomers used in latex manufacturing, as a monomer for emulsion polymerization, and has excellent stability and fluidity, a paper coating composition containing thereof, and a paper coated with the composition.
摘要翻译：本发明公开了一种含有共聚物离子单体的纸涂布胶乳，含有它的纸涂料组合物和涂有该组合物的纸。更具体地，本发明提供了一种用于纸张涂布的苯乙烯 - 丁二烯胶乳，其包含甲基烯丙基磺酸钠，与乳胶制造中使用的单体共聚的离子单体，作为乳液聚合的单体，并且具有优异的稳定性和流动性，纸涂料组合物含有该组合物的纸张。

3. 发明授权

US07019072B2 Method of preparing latex for coating paper 有权
公开(公告)号：US07019072B2
公开(公告)日：2006-03-28
申请号：US10203181
申请日：2001-12-20
申请人： Ho-Yeul Choi , Seung-Uk Yeu , Chang-Sun Han , Wan-Sik Cha
发明人： Ho-Yeul Choi , Seung-Uk Yeu , Chang-Sun Han , Wan-Sik Cha
IPC分类号： C08F2/32
CPC分类号： D21H19/58 , C08F236/10 , Y10T428/31899 , C08F2/38
摘要： The present invention relates to styrene-butadienie latex, specifically a method of preparing latex for coating paper which shows excellent adhesion while maintaining printing property and comprised in a composition for coating paper. To achieve the object of the present invention, it provides a method of preparing styrene-butadiene latex comprising the step of emulsion polymerization by adding 0.1 to 10 parts by weight of chain transfer agent comprising; i) monofunctional thiol compound, and ii) polyfunctional thiol compound having at least two thiol groups based on 100 parts by weight of styrene-butadiene monomer composition. The latex prepared by the present method can easily control molecular weight and gel content, so that polymerization stability and mechanical stability are improved and thus, it is possible to print paper with high speed and to improve adhesion.

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