公开(公告)号：WO2011050232A2

公开(公告)日：2011-04-28

申请号：PCT/US2010/053669

申请日：2010-10-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  HAAG, Adam D. ,  EDMONDS, William F. ,  PETAJA, Jason S. ,  NELSON, Eric W. ,  KOLB, William Blake ,  HAO, Encai ,  LU, Fei ,  FREE, Michael Benton

Inventor： HAAG, Adam D. ,  EDMONDS, William F. ,  PETAJA, Jason S. ,  NELSON, Eric W. ,  KOLB, William Blake ,  HAO, Encai ,  LU, Fei ,  FREE, Michael Benton

IPC: B05D1/36 ,  B05D5/00

CPC classification number: B05D3/101 ,  B05D3/0209 ,  B05D3/0254 ,  B05D3/067 ,  B05D3/10 ,  B05D3/107 ,  B05D5/00 ,  B05D7/04 ,  B82Y20/00 ,  G02B2207/101 ,  G02B2207/107

Abstract: A process and apparatus for producing a gradient nanovoided article, a gradient nanovoided coating, and a gradient low refractive index coating is described. The process includes providing a first solution of a polymerizable material in a solvent, and providing a first environment proximate a first region of the coating and a different second environment proximate an adjacent region of the coating. The process further includes at least partially polymerizing the polymerizable material to form a composition that includes an insoluble polymer matrix and a second solution. The insoluble polymer matrix includes a plurality of nanovoids that are filled with the second solution, and a major portion of the solvent from the second solution is removed. A first volume fraction of the plurality of nanovoids proximate the first region of the coating is less than a second volume fraction of the plurality of nanovoids proximate an adjacent of the coating. An apparatus for the process is also described, and includes a web line, a coating section, a partial polymerization section, and a solvent removal section.

Abstract translation: 描述了用于生产梯度纳米组分制品，梯度纳米复合涂层和梯度低折射率涂层的方法和设备。 该方法包括在溶剂中提供可聚合材料的第一溶液，以及在涂层的第一区域附近提供第一环境以及邻近涂层的相邻区域的不同的第二环境。 该方法还包括至少部分聚合可聚合材料以形成包含不溶性聚合物基质和第二溶液的组合物。 不溶性聚合物基质包括填充有第二溶液的多个纳米泡，并且除去来自第二溶液的大部分溶剂。 靠近涂层的第一区域的多个纳米空心的第一体积分数小于邻近涂层的多个纳米空间的第二体积分数。 还描述了一种用于该方法的装置，并且包括幅材线，涂布部分，部分聚合部分和溶剂去除部分。

公开(公告)号：WO2011050228A3

公开(公告)日：2011-04-28

申请号：PCT/US2010/053662

申请日：2010-10-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  HAAG, Adam D. ,  EDMONDS, William F. ,  PETAJA, Jason S. ,  NELSON, Eric W. ,  KOLB, William Blake ,  HAO, Encai ,  LU, Fei ,  FREE, Michael Benton

Inventor： HAAG, Adam D. ,  EDMONDS, William F. ,  PETAJA, Jason S. ,  NELSON, Eric W. ,  KOLB, William Blake ,  HAO, Encai ,  LU, Fei ,  FREE, Michael Benton

IPC: G02B5/02

Abstract: A gradient optical film and an optical construction including the gradient optical film are described. The gradient optical film includes a binder, a plurality of particles, and a plurality of interconnected voids having a local volume fraction. The local volume fraction of the plurality of interconnected voids varies along a thickness direction of the gradient optical film. The refractive index of the gradient optical film can also varies along a thickness direction of the gradient optical film, as the refractive index can also depend upon the local volume fraction of the plurality of interconnected voids.