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1. 发明授权

US08362132B2 Low titanium dioxide coatings 有权
标题翻译：低二氧化钛涂层
公开(公告)号：US08362132B2
公开(公告)日：2013-01-29
申请号：US13091887
申请日：2011-04-21
申请人： Stephen Arthur Wheeler , Richard Barcock , Colin Pearce , Gary Jefferson , Anthony David Woods , Simon Nicholas Emmett , Javier Perez-Amoros
发明人： Stephen Arthur Wheeler , Richard Barcock , Colin Pearce , Gary Jefferson , Anthony David Woods , Simon Nicholas Emmett , Javier Perez-Amoros
IPC分类号： C08K3/22 , C09D125/00 , B32B27/30
CPC分类号： C09D5/028 , C08K3/013 , C08K3/22 , C08K3/26 , C08K3/34 , C08K7/22 , C08L2205/20 , C09D7/61 , C09D7/70 , Y10T428/31935
摘要： Aqueous coating composition having a PVC from 78 to 85% and free of non-fugitive coalescing solvent, comprising, based on the total volume solids of the dry coating unless otherwise stated, a) opacifying pigment particles comprising from 3 to 10% titanium dioxide and from 0 to 20% of hollow polymeric particles; b) non-opacifying extender particles comprising calcium magnesium carbonate and/or calcium carbonate and/or nepheline syenite and/or kaolin; c) polymer binder particles of calculated Fox Tg of from 5 to 25° C. having an acid value of from 15 to 65 mg KOH/g of polymer; d) dispersant having weight average molecular weight of at least 3500 Daltons, and wherein the dispersant demand of a mixture of the opacifying pigment particles, other than the hollow polymeric particles, of a) and the extender particles of b) is greater than 0.35 wt %, calculated on the weight of the titanium dioxide and extender particles; e) fugitive coalescing solvent.
摘要翻译：水性涂料组合物，其具有78至85％的PVC且不含非逸散性聚结溶剂，除非另有说明，基于干涂层的总体积固体含量，a）包含3至10％二氧化钛的不透明颜料颗粒和 0至20％的中空聚合物颗粒; b）包含碳酸钙镁和/或碳酸钙和/或霞石正长岩和/或高岭土的非遮光增量剂颗粒; c）具有5至25℃的计算的Fox Tg的聚合物粘合剂颗粒，其酸值为15至65mg KOH / g聚合物; d）具有至少3500道尔顿的重均分子量的分散剂，并且其中不饱和颜料颗粒（a）的中空聚合物颗粒与b）的增量剂颗粒的混合物的分散剂需求大于0.35重量％％，根据二氧化钛和增量剂颗粒的重量计算; e）挥发性聚结溶剂。

2. 发明授权

US08435340B2 Low titianium dioxide coatings 有权
标题翻译：低二氧化钛涂层
公开(公告)号：US08435340B2
公开(公告)日：2013-05-07
申请号：US13091930
申请日：2011-04-21
申请人： Stephen Arthur Wheeler , Anthony David Woods , Simon Nicholas Emmett , Javier Perez-Amoros
发明人： Stephen Arthur Wheeler , Anthony David Woods , Simon Nicholas Emmett , Javier Perez-Amoros
IPC分类号： C04B14/30
CPC分类号： C09D5/028 , C08K3/22 , C08K3/26 , C08K3/34 , C08K7/22 , C08L2205/20 , C09D7/45 , C09D7/61 , C09D7/70 , Y10T428/249972 , Y10T428/249998
摘要： An aqueous coating composition having a PVC of from 78 to 88% comprising, based on the total volume solids of the dry coating unless otherwise stated:a) opacifying pigment particles comprising i) from 3 to 10% titanium dioxide, ii) from 0 to 20% of hollow polymeric particles; b) non-opacifying extender particles comprising i) calcium magnesium carbonate, and/or ii) calcium carbonate, and/or iii) nepheline syenite, and/or iv) kaolin, wherein i)+ii)+iii)+iv)=40 to 80%, and iv) is 0 to 20%; c) polymer binder particles of calculated Fox Tg of from 25 to 70° C. having an acid value of from 15 to 65 mg KOH/g of polymer and wherein the polymer particles are derived from acrylic monomers and optionally further comprising styrene and/or its derivatives; d) dispersant having a weight average molecular weight of at least 3500 Daltons; e) fugitive coalescing solvent; wherein the composition is free of non-fugitive coalescing solvent.
摘要翻译：除非另有说明，具有78至88％的PVC的水性涂料组合物包含基于干涂层的总体积固体含量：a）不透明颜料颗粒，其包含i）3至10％的二氧化钛，ii）0至 20％的中空聚合物颗粒; b）非遮光增量剂颗粒，其包含i）碳酸钙镁和/或ii）碳酸钙和/或iii）霞石正长岩，和/或iv）高岭土，其中i）+ ii）+ iii）+ iv）= 40〜80％，iv）为0〜20％。 c）具有25至70℃的计算的Fox Tg的聚合物粘合剂颗粒，其酸值为15至65mg KOH / g聚合物，并且其中聚合物颗粒衍生自丙烯酸单体，并且任选地还包含苯乙烯和/或其衍生物; d）重均分子量至少为3500道尔顿的分散剂; e）挥发性聚结溶剂; 其中所述组合物不含非逸散性聚结溶剂。

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