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2. 发明公开

EP3305820A1 AQUEOUS GEL-CONTAINING RESIN PARTICLE EMULSION AND METHOD FOR PREPARING SAID AQUEOUS GEL-CONTAINING RESIN PARTICLE EMULSION 有权转让
标题翻译：含水凝胶树脂颗粒乳液及制备含水凝胶树脂颗粒乳液的方法
公开(公告)号：EP3305820A1
公开(公告)日：2018-04-11
申请号：EP16785074.2
申请日：2016-05-25
申请人： Saiden Chemical Industry Co. Ltd.
发明人： KANEDAI Shuichi , KIJIMA Kenji , KOZUKA Junpei
IPC分类号： C08F265/06 , B01F17/02 , B01F17/42 , B01F17/52 , C08F2/26 , C08F2/44
CPC分类号： C08F2/26 , C08F2/44 , C08F265/06
摘要： There is provided an aqueous gel-encapsulating resin particle emulsion which is excellent in storage stability such that the tendency to cause separation and sedimentation is suppressed even though the emulsion has particle diameters of 500 nm or larger, or further, 1000 nm or larger, and which can be utilized industrially effectively, and there is further provided a production method that is capable of stably producing the aqueous gel-encapsulating resin particle emulsion having the excellent properties by a simple method that is excellent in polymerization stability. An aqueous gel-encapsulating resin particle emulsion containing a particle that contains an alkali-swellable core portion containing a (meth) acrylic copolymer having an acid value of 200 to 400 mgKOH/g and a resin portion encapsulating the core portion and having a non-alkali-swellable outermost layer of the particle, the non-alkali-swellable outermost layer formed using a hydrophobic monomer, wherein the core portion is an aqueous gel encapsulating a solvent, the resin portion has a thickness of 5% or less of a diameter of the particle, and the particle has an average particle diameter of 500 nm or larger and 5000 nm or smaller, and a method for producing the emulsion.
摘要翻译：本发明提供一种水性凝胶内化树脂颗粒乳液，其具有优异的储存稳定性，使得即使乳液具有500nm或更大，或进一步1000nm或更大的粒径，导致分离和沉降的倾向也被抑制，并且其可以在工业上有效地利用，并且还提供了一种制造方法，其能够通过聚合稳定性优异的简单方法稳定地制造具有优异性能的含水凝胶封入树脂颗粒乳液。一种水凝胶内装树脂颗粒乳液，其含有含有酸值为200〜400mgKOH / g的（甲基）丙烯酸共聚物的碱溶胀性芯部分和包封所述芯部分且具有非酸性成分的树脂部分，所述颗粒的碱溶胀性最外层，所述非碱溶胀性最外层使用疏水性单体形成，其中所述核部分是包封溶剂的水性凝胶，所述树脂部分具有5％或更小的直径的厚度颗粒和颗粒具有500nm以上且5000nm以下的平均粒径，以及用于生产该乳液的方法。

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