公开(公告)号：WO2013159090A2

公开(公告)日：2013-10-24

申请号：PCT/US2013/037574

申请日：2013-04-22

Applicant: VALSPAR SOURCING, INC.

Inventor： BOOTH, Karl, A. ,  KORENKIEWICZ, Stephen M. ,  HARRIS, Laura E. ,  KIPPING, Alexis R. ,  TAYLOR, Jeffrey F.

IPC: C09C1/36

CPC classification number: C09D17/008 ,  B82Y30/00 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/22 ,  C01P2006/62 ,  C09C1/36 ,  C09C1/3676 ,  C09D7/62

Abstract: A pigment grind dispersion of titanium dioxide pigment-polymer composite particles is made by mixing titanium dioxide particles with an aqueous emulsion containing (i) less than a saturation level amount of water-insoluble film-forming first polymer particles that adsorb to the titanium dioxide particles, and (ii) an inhibiting or interfering amount of water-insoluble film-forming second polymer particles that do not adsorb to the titanium dioxide particles, wherein the pigment grind dispersion has a titanium dioxide pigment volume concentration of about 25 to about 50 and a titania composite ratio of about 32 to about 60. The resulting titanium dioxide pigment-polymer composite particles can provide improved coating composition opacity compared to a coating composition that does not contain such composite particles, can employ reduced titanium dioxide amounts and less than a saturation level of the first polymer, and can provide improved storage stability.

Abstract translation: 二氧化钛颜料 - 聚合物复合颗粒的颜料研磨分散体是通过将二氧化钛颗粒与含有（i）小于饱和水平量的吸附于二氧化钛颗粒的不溶于水的成膜的第一聚合物颗粒的水性乳液混合而制备的 ，和（ii）抑制或干扰量的不吸附到二氧化钛颗粒上的水不溶性成膜的第二聚合物颗粒，其中颜料研磨分散体的二氧化钛颜料体积浓度为约25至约50，并且 二氧化钛复合比为约32至约60.与不含这种复合颗粒的涂料组合物相比，所得二氧化钛颜料 - 聚合物复合颗粒可提供改进的涂料组合物不透明度，可以使用还原二氧化钛量并且小于饱和水平 的第一聚合物，并且可以提供改善的储存稳定性。

公开(公告)号：EP2838957A2

公开(公告)日：2015-02-25

申请号：EP13722174.3

申请日：2013-04-22

Applicant: Valspar Sourcing, Inc.

Inventor： BOOTH, Karl A. ,  KORENKIEWICZ, Stephen M. ,  HARRIS, Laura E. ,  KIPPING, Alexis R. ,  TAYLOR, Jeffrey F.

IPC: C09C1/36

CPC classification number: C09D17/008 ,  B82Y30/00 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/22 ,  C01P2006/62 ,  C09C1/36 ,  C09C1/3676 ,  C09D7/62

Abstract: A pigment grind dispersion of titanium dioxide pigment-polymer composite particles is made by mixing titanium dioxide particles with an aqueous emulsion containing (i) less than a saturation level amount of water-insoluble film-forming first polymer particles that adsorb to the titanium dioxide particles, and (ii) an inhibiting or interfering amount of water-insoluble film-forming second polymer particles that do not adsorb to the titanium dioxide particles, wherein the pigment grind dispersion has a titanium dioxide pigment volume concentration of about 25 to about 50 and a titanic composite ratio of about 32 to about 60. The resulting titanium dioxide pigment-polymer composite particles can provide improved coating composition opacity compared to a coating composition that does not contain such composite particles, can employ reduced titanium dioxide amounts and less than a saturation level of the first polymer, and can provide improved storage stability.

Abstract translation: 二氧化钛颜料 - 聚合物复合颗粒的颜料研磨分散体通过将二氧化钛颗粒与含有（i）小于饱和水平量的吸附于二氧化钛颗粒的不溶于水的成膜的第一聚合物颗粒的水性乳液混合而制备 ，和（ii）抑制或干扰量的不吸附到二氧化钛颗粒的不溶于水的成膜的第二聚合物颗粒，其中颜料研磨分散体的二氧化钛颜料体积浓度为约25至约50，并且 钛复合比为约32至约60.与不含这种复合颗粒的涂料组合物相比，所得到的二氧化钛颜料 - 聚合物复合颗粒可以提供改进的涂料组合物不透明度，可以使用还原的二氧化钛量并且小于饱和水平 的第一聚合物，并且可以提供改善的储存稳定性。