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    WRINKLED SURFACES WITH TUNABLE HIERARCHY AND METHODS FOR THE PREPARATION THEREOF
    2.
    发明申请
    WRINKLED SURFACES WITH TUNABLE HIERARCHY AND METHODS FOR THE PREPARATION THEREOF 审中-公开
    带有可调节层的皱纹表面及其制备方法

    公开(公告)号：US20150197058A1

    公开(公告)日：2015-07-16

    申请号：US14669925

    申请日：2015-03-26

    申请人： Sourabh Kumar Saha ,  Martin Luther Culpepper

    发明人： Sourabh Kumar Saha ,  Martin Luther Culpepper

    IPC分类号： B29C59/02 ,  C23C16/50 ,  B29C33/38 ,  C23C16/02

    CPC分类号： B29C59/02 ,  B29C33/3878 ,  B29C33/42 ,  B29C33/424 ,  B29C39/26 ,  B29C59/022 ,  B29C59/026 ,  B29C59/18 ,  B29C71/02 ,  B29C2059/023 ,  B29K2083/00 ,  B29L2031/756 ,  B29L2031/772 ,  Y10T428/24521

    摘要： This invention relates to the low-cost manufacture of a tunable physical topographic pattern and more particularly to the manufacture of micro and nano scale hierarchical periodic wrinkle patterns that are generated upon compression of supported thin films. Disclosed herein is (i) a composite material with tunable hierarchical wrinkle patterns, wherein the composite material comprises a stretched and pre-patterned base layer and a thin film that is conformally attached to the pre-patterned surface of the base layer, (ii) a method of fabricating the pre-patterned base via pattern replication, and (iii) a method of fabricating tunable hierarchical wrinkle patterns, wherein the pattern can be deterministically switched across the hierarchical and non-hierarchical states via strain control.

    摘要翻译： 本发明涉及可调式物理地形图案的低成本制造，更具体地涉及在压缩支撑的薄膜时产生的微米级和纳米级分层周期性皱纹图案的制造。 本文公开的是（i）具有可调分层皱纹图案的复合材料，其中所述复合材料包括拉伸和预先图案化的基底层和与所述基底层的预先构图的表面共形附着的薄膜，（ii） 通过图案复制制造预图案化基底的方法，以及（iii）制造可调节分层皱纹图案的方法，其中通过应变控制可以通过分级和非分层状态确定性地切换图案。

    BIAXIAL TENSILE STAGE FOR FABRICATING AND TUNING WRINKLES
    3.
    发明申请
    BIAXIAL TENSILE STAGE FOR FABRICATING AND TUNING WRINKLES 有权
    双向拉伸阶段用于制作和调节皱纹

    公开(公告)号：US20150202821A1

    公开(公告)日：2015-07-23

    申请号：US14590448

    申请日：2015-01-06

    申请人： Sourabh Kumar Saha ,  Martin Luther Culpepper

    发明人： Sourabh Kumar Saha ,  Martin Luther Culpepper

    IPC分类号： B29C55/12 ,  B29C55/20

    CPC分类号： B29C55/16 ,  B29C37/0025 ,  B29C55/005 ,  B29C55/023 ,  B29C55/12 ,  B29C55/20 ,  B29K2083/00 ,  B29L2009/008 ,  C23C14/20 ,  C23C16/06

    摘要： Wrinkling of thin films is a strain-driven process that enables scalable and low-cost fabrication of periodic micro and nano scale patterns. However, real-world application is limited by the inability of current tools to provide the means for applying large, accurate, and non-equal biaxial strains via a device that can fit within the vacuum chambers that are required for thin film deposition/growth during wrinkling. The present biaxial tensile stage is a compact system that enables one to apply large and accurate non-equal biaxial strains to elastomeric films. It consists of (i) fixtures to clamp and hold films onto the stage, (ii) linear bearings for motion guidance, (iii) integrated actuators for real-time stretch control, (iv) base with kinematic coupling for registration to a metrology system, and (v) the structural frame.

    摘要翻译： 薄膜的皱纹是一种应变驱动的过程，能够实现定期微尺度和纳米尺度图案的可缩放和低成本制造。 然而，现实世界的应用受到当前工具无法提供通过可以适合薄膜沉积/生长所需的真空室内的装置应用大的，准确的和不相等的双轴应变的装置的限制， 起皱。 目前的双轴拉伸阶段是一种紧凑的系统，使得能够对弹性体膜施加大而精确的不相等的双轴应变。 它包括：（i）用于将薄膜夹持并保持在平台上的固定装置，（ii）用于运动引导的直线轴承，（iii）用于实时拉伸控制的集成执行器，（iv）用于计量系统注册的运动耦合基座 ，（v）结构框架。

    METHOD TO FABRICATE PRE-PATTERNED SURFACES DURING MANUFACTURE OF COMPLEX WRINKLED STRUCTURES
    4.
    发明申请
    METHOD TO FABRICATE PRE-PATTERNED SURFACES DURING MANUFACTURE OF COMPLEX WRINKLED STRUCTURES 有权
    在制造复杂结构的过程中制作预制表面的方法

    公开(公告)号：US20160039142A1

    公开(公告)日：2016-02-11

    申请号：US14922146

    申请日：2015-10-24

    申请人： Sourabh Kumar Saha ,  Martin Luther Culpepper

    发明人： Sourabh Kumar Saha ,  Martin Luther Culpepper

    IPC分类号： B29C59/02 ,  B29C71/02

    CPC分类号： B29C59/02 ,  B29C33/3878 ,  B29C33/42 ,  B29C33/424 ,  B29C39/26 ,  B29C59/022 ,  B29C59/026 ,  B29C59/18 ,  B29C71/02 ,  B29C2059/023 ,  B29K2083/00 ,  B29L2031/756 ,  B29L2031/772 ,  Y10T428/24521

    摘要： The pattern complexity and functional value of wrinkled structures can be substantially increased by fabricating the wrinkles on pre-patterned quasi-planar substrates instead of flat substrates. This disclosure presents the methods for fabricating pre-patterned polymeric surfaces that can be subsequently used as the substrates during manufacture of complex wrinkled structures. Pre-patterned substrates are generated by imprinting the pre-patterns onto the substrates during the curing process. Suitability for post-curing use in fabrication of wrinkles is ensured by (i) delayed imprinting that occurs close to but before the gelation point and (ii) gradual alignment of pre-patterns to the direction of stretch that is applied later during manufacture of wrinkled structures.

    摘要翻译： 通过在预图案化的准平面基板上而不是平面基板上制造皱纹，可以显着增加起皱结构的图案复杂性和功能值。 本公开提出了制造预先图案化的聚合物表面的方法，其可以在制造复杂起皱结构期间随后用作基底。 通过在固化过程中将预制图案压印到基底上来生成预图案化的基底。 通过（i）在凝胶化点附近发生的延迟印迹，和（ii）将预制图案逐渐对准在随后的皱纹制造过程中施加的拉伸方向上，以确保后固化用于皱纹制造中的适用性 结构。