IMPROVED LOW TITANIUM DIOXIDE COATINGS
    1.
    发明公开
    IMPROVED LOW TITANIUM DIOXIDE COATINGS 有权
    改进的低二氧化钛涂层

    公开(公告)号:EP2563867A1

    公开(公告)日:2013-03-06

    申请号:EP11717556.2

    申请日:2011-04-22

    IPC分类号: C09D7/00 C09D7/12

    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 65mg 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.

    摘要翻译: 一种PVC含量为78-88%的水性涂料组合物,除了另有说明外,以干燥涂料的总体积固体计,包括:a)不透明颜料颗粒,其包含:i)3-10%二氧化钛,ii)0 至20%的中空聚合物颗粒; b)非遮盖增量剂颗粒,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至80%和iv)为0至20%; c)计算的Fox Tg为25-70℃的聚合物粘合剂颗粒,其酸值为15-65mg KOH / g聚合物,并且其中聚合物颗粒衍生自丙烯酸类单体,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)短效聚结溶剂,其中所述组合物不含非短效聚结溶剂。

    IMPROVED LOW TITANIUM DIOXIDE COATINGS
    2.
    发明授权
    IMPROVED LOW TITANIUM DIOXIDE COATINGS 有权
    具有低钛白粉百分比改进涂料

    公开(公告)号:EP2563866B1

    公开(公告)日:2015-08-05

    申请号:EP11715568.9

    申请日:2011-04-22

    IPC分类号: C09D7/00 C09D7/12

    摘要: An aqueous coating composition having a PVC of from 78 to 85% 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 5 to 25°C having an acid value of from 15 to 65mg 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 and selected on the basis that 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 0.35wt%, calculated on the weight of the titanium dioxide and extender particles e) fugitive coalescing solvent.

    IMPROVED LOW TITANIUM DIOXIDE COATINGS
    4.
    发明公开
    IMPROVED LOW TITANIUM DIOXIDE COATINGS 有权
    具有低钛白粉百分比改进涂料

    公开(公告)号:EP2563866A1

    公开(公告)日:2013-03-06

    申请号:EP11715568.9

    申请日:2011-04-22

    IPC分类号: C09D7/00 C09D7/12

    摘要: An aqueous coating composition having a PVC of from 78 to 85% 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 5 to 25°C having an acid value of from 15 to 65mg 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 and selected on the basis that 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 0.35wt%, calculated on the weight of the titanium dioxide and extender particles e) fugitive coalescing solvent.