公开(公告)号：US20240226393A9

公开(公告)日：2024-07-11

申请号：US18277636

申请日：2022-01-07

申请人： Christian-Albrechts-Universitaet zu Kiel

发明人： Sabrina M. Curtis ,  Duygu Dengiz ,  Eckhardt Quandt

IPC分类号： A61L31/14 ,  B29C44/34

CPC分类号： A61L31/14 ,  B29C44/357

摘要： An auxetic web structure or field structure useful for a medical implant, combining the advantageous mechanical properties of auxetic structures and stretchable interconnects in such a way as to provide an auxetic structure which is particularly stretchable, while at the same time providing sufficiently large areas which are subjected at most to only minor stresses. This structure takes advantage of the superior mechanical properties offered by auxetic metamechanical materials (hereafter referred to as auxetic) and improves their stretchability and compressibility by incorporating interconnects into the auxetic framework.

公开(公告)号：US11759983B2

公开(公告)日：2023-09-19

申请号：US16642489

申请日：2018-09-13

申请人： BASF SE

发明人： Sebastian Richter ,  Achim Besser ,  Sebastian Alexander Weisse ,  Johannes Poppenberg ,  Johann Martin Szeifert ,  Markus Susoff ,  Steffen Mayer ,  Markus Schuette ,  Heinz-Dieter Lutter

IPC分类号： B29C44/34 ,  B29C44/56 ,  B29C51/02 ,  B29K61/00 ,  B29K75/00

CPC分类号： B29C44/357 ,  B29C44/5636 ,  B29C51/02 ,  B29K2061/00 ,  B29K2075/00 ,  B29K2995/0002 ,  B29K2995/0063

摘要： Described herein is a process for preparing a foam (FA) with a Poisson's ratio in the range of from −0.5 to 0.3, the method including the steps of providing a foam (F1) with a flow resistance in the range of from 3000 to 8000 Pas/m, determined according to DIN EN 29053, and subjecting the foam (F1) to thermoforming including triaxial compression, wherein the foam (F1) is not reticulated prior to step (ii). Also described herein is the foam obtained or obtainable according to the process and the use of the foam as, for example, an energy absorbing device, preferably in protective gear, furniture, cushions, in cleaning devices with improved rinse-out behavior, in shoe soles, or as sealing, insulating or anchorage providing material for example used in earphones, ear plugs or dowels, or as acoustic material.

公开(公告)号：US08652602B1

公开(公告)日：2014-02-18

申请号：US12038415

申请日：2008-02-27

申请人： William Jacob Spenner Dolla

发明人： William Jacob Spenner Dolla

IPC分类号： D03D15/00

CPC分类号： B29C44/357 ,  B29K2995/0094 ,  Y10T428/1362 ,  Y10T428/2936 ,  Y10T442/3179 ,  Y10T442/3187 ,  Y10T442/3195 ,  Y10T442/3203 ,  Y10T442/3211 ,  Y10T442/3976

摘要： Auxetic structures exhibiting negative Poisson's ratios are disclosed including planar auxetic structures formed from x-axis and y-axis strands of selected waveforms. Portions of the auxetic structure referred to as unit cells comprise four joints formed by two adjacent x-axis strands overlapping two adjacent y-axis strands display symmetry about x and y axes. Each unit cell comprises four sub-unit cells formed from segments of ½ wavelength of the wave form. The planar auxetic structures may be formed into three-dimensional auxetic structures or cylindrical or spherical auxetic structures.

摘要翻译： 公开了显示负泊松比的辅助结构，其包括由所选波形的x轴和y轴股形成的平面辅助结构。 被称为单位单元的部分的辅助结构包括由两个相邻的x轴股形成的四个关节，两个相邻的x轴股线与两个相邻的y轴股线重叠，显示出关于x和y轴的对称性。 每个单元电池包括由波形的1/2波长的段形成的四个子单元电池。 平面生长结构可以形成为三维辅助结构或圆柱形或球形的生长结构。

公开(公告)号：US20110109005A1

公开(公告)日：2011-05-12

申请号：US12900822

申请日：2010-10-08

申请人： Matteo BIANCHI ,  Fabrizio SCARPA

发明人： Matteo BIANCHI ,  Fabrizio SCARPA

IPC分类号： B29C44/10

CPC分类号： B29C44/5636 ,  B29C44/357 ,  B29K2105/045 ,  B29K2995/0002

摘要： A method of manufacturing a foam having a negative Poisson's ratio comprising the steps: placing a pad 12 of open cell polyurethane foam on a moulding surface 4; placing a flexible membrane 18 over the exposed surface of the foam to create a sealed chamber 20 between the moulding surface 4 and the flexible membrane 18 in which the foam pad 12 is disposed; applying an isostatic pressure difference between the inside and the outside of the chamber 20 thereby collapsing the foam pad 12 between the flexible membrane 18 and the moulding surface 4; heating the foam pad 12 to a predetermined temperature, and subsequently cooling the foam pad 12 while collapsed.

摘要翻译： 制造具有负泊松比的泡沫的方法包括以下步骤：将开孔聚氨酯泡沫的垫12放置在成型表面4上; 将柔性膜18放置在泡沫的暴露表面上，以在模制表面4和柔性膜18之间形成密封腔20，在该柔性膜18中布置泡沫垫12。 在室20的内部和外部之间施加等静压差，从而使泡沫垫12在柔性膜18和成型表面4之间塌缩; 将泡沫垫12加热到预定温度，随后在泡沫垫12折叠的同时冷却泡沫垫12。

公开(公告)号：US11826952B2

公开(公告)日：2023-11-28

申请号：US17189074

申请日：2021-03-01

申请人： National Technology & Engineering Solutions of Sandia, LLC

发明人： Brad Boyce ,  Benjamin C. White ,  Anthony Garland ,  Ryan Alberdi

IPC分类号： B29C70/00 ,  B32B5/02 ,  B29C64/129 ,  B33Y10/00 ,  B33Y70/10 ,  B22F10/37 ,  B33Y80/00 ,  B29C44/34 ,  B33Y50/00 ,  B29K277/00 ,  B29K105/00 ,  B32B3/12 ,  B32B3/26

CPC分类号： B29C64/129 ,  B22F10/37 ,  B29C44/357 ,  B29C70/0035 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00 ,  B22F2301/35 ,  B22F2999/00 ,  B29K2105/251 ,  B29K2277/00 ,  B29K2995/0005 ,  B29K2995/0025 ,  B29K2995/0041 ,  B29K2995/0094 ,  B32B3/12 ,  B32B3/26 ,  B32B5/028 ,  B33Y50/00

摘要： Multi-body interpenetrating lattices comprise two or more lattices that interlace or interpenetrate through the same volume without any direct physical connection to each other, wherein energy transfer is controlled by surface interactions. As a result, multifunctional or composite-like responses can be achieved by additive manufacturing of the interpenetrating lattices, even with only a single print material, with programmable interface-dominated properties. As a result, the interpenetrating lattices can have unique mechanical properties, including improved toughness, multi-stable/negative stiffness, and electromechanical coupling.

公开(公告)号：US09956729B2

公开(公告)日：2018-05-01

申请号：US14494225

申请日：2014-09-23

申请人： ROLLS-ROYCE PLC

发明人： Matteo Bianchi ,  Fabrizio Scarpa

IPC分类号： C08J9/36 ,  B29C71/00 ,  B29C44/34 ,  B29C44/56 ,  B29C71/02 ,  B29K105/04 ,  B29K105/00

CPC分类号： B29C71/009 ,  B29C44/357 ,  B29C44/5636 ,  B29C71/02 ,  B29K2105/045 ,  B29K2105/25 ,  B29K2995/0039 ,  B29K2995/0044 ,  C08J9/36 ,  C08J2205/05 ,  C08J2300/22 ,  C08J2300/24

摘要： A method of manufacturing a foam having a Poisson's ratio which varies across at least a region of the foam in a gradient distribution involves the steps of: a) providing a housing defining an internal space having an inlet aperture and an outlet aperture; b) providing an open-cell foam of a size and shape configured to fit inside the internal space of the housing; c) positioning the foam inside the internal space of the housing; d) establishing a flow of air through the foam via the inlet and outlet apertures; e) heating the foam to a predetermined temperature while maintaining the flow of air through the foam; and f) subsequently cooling the foam while continuing to maintain the flow of air through the foam. A foam of such a type is also presented.

公开(公告)号：US08313682B2

公开(公告)日：2012-11-20

申请号：US12900822

申请日：2010-10-08

申请人： Matteo Bianchi ,  Fabrizio Scarpa

发明人： Matteo Bianchi ,  Fabrizio Scarpa

IPC分类号： B29C33/58 ,  B29C67/20

CPC分类号： B29C44/5636 ,  B29C44/357 ,  B29K2105/045 ,  B29K2995/0002

摘要： A method of manufacturing a foam having a negative Poisson's ratio comprising the steps: placing a pad 12 of open cell polyurethane foam on a moulding surface 4; placing a flexible membrane 18 over the exposed surface of the foam to create a sealed chamber 20 between the moulding surface 4 and the flexible membrane 18 in which the foam pad 12 is disposed; applying an isostatic pressure difference between the inside and the outside of the chamber 20 thereby collapsing the foam pad 12 between the flexible membrane 18 and the moulding surface 4; heating the foam pad 12 to a predetermined temperature, and subsequently cooling the foam pad 12 while collapsed.

摘要翻译： 制造具有负泊松比的泡沫的方法包括以下步骤：将开孔聚氨酯泡沫的垫12放置在成型表面4上; 将柔性膜18放置在泡沫的暴露表面上，以在模制表面4和柔性膜18之间形成密封腔20，在该柔性膜18中布置泡沫垫12。 在室20的内部和外部之间施加等静压差，从而使泡沫垫12在柔性膜18和成型表面4之间塌缩; 将泡沫垫12加热到预定温度，随后在泡沫垫12折叠的同时冷却泡沫垫12。

公开(公告)号：US20100029796A1

公开(公告)日：2010-02-04

申请号：US12092459

申请日：2006-11-06

申请人： Andrew Alderson ,  Kim Lesley Alderson ,  Philip John Davies ,  Gillian Mary Smart

发明人： Andrew Alderson ,  Kim Lesley Alderson ,  Philip John Davies ,  Gillian Mary Smart

IPC分类号： C08F120/06 ,  C08G18/06 ,  C08G63/02 ,  C08F110/02 ,  C08F110/06

CPC分类号： B29C44/56 ,  B29C44/357 ,  B29C44/5636

摘要： A process for the preparation of thermoplastic auxetic foams comprising the steps of: a) taking conventional thermoplastic foam; b) subjecting said foam to at least one process cycle wherein the foam is biaxially compressed and heated; c) optionally subjecting the foam to at least one process cycle wherein the biaxial compression is removed and the foam mechanically agitated prior to reapplying biaxial compression and heating; d) cooling said foam to a temperature below the softening temperature of said foam; and e) removing said compression and heat.

摘要翻译： 一种制备热塑性活性泡沫体的方法，包括以下步骤：a）取代常规热塑性泡沫; b）对所述泡沫进行至少一个工艺循环，其中泡沫被双轴压缩和加热; c）任选地使泡沫体经历至少一个处理循环，其中在双轴压缩和加热重新应用之前，双轴压缩被去除并且泡沫机械搅拌; d）将所述泡沫体冷却到低于所述泡沫体的软化温度的温度; 以及e）去除所述压缩和加热。

公开(公告)号：US20180250891A1

公开(公告)日：2018-09-06

申请号：US15969428

申请日：2018-05-02

申请人： Toledo Molding & Die, Inc.

发明人： Brian Beard ,  Pete Ermie ,  Chris Lambert ,  Jay Myers ,  Erich Vorenkamp ,  Steve Wagener

IPC分类号： B29C69/02 ,  B29C44/02 ,  B29C49/04 ,  B29C49/18 ,  B29C49/64 ,  B29C49/48 ,  B29C49/62 ,  B29C44/04

CPC分类号： B29C69/02 ,  B29C44/02 ,  B29C44/0407 ,  B29C44/26 ,  B29C44/352 ,  B29C44/355 ,  B29C44/357 ,  B29C44/507 ,  B29C49/04 ,  B29C49/18 ,  B29C49/48 ,  B29C49/62 ,  B29C49/6454 ,  B29K2023/065 ,  B29K2023/0675 ,  B29K2023/12 ,  B29K2105/0088 ,  B29K2105/04 ,  B29K2105/043 ,  B29K2105/045 ,  B29K2105/046 ,  B29K2507/04 ,  B29K2995/0063 ,  B29L2009/00 ,  B29L2023/00 ,  B29L2031/30 ,  B29L2031/3032

摘要： A method of sub-ambient pressure processing of blow-molded polymer foams and skin-over-foam sandwich panel configurations for lightweight components having improved structural properties. The method can create either skinned or un-skinned foams that offer smooth interior and exterior surfaces, zero or controlled surface porosity, skins of pre-defined thickness, and foam cells that are expanded and oriented normal to the material plane, effectively spherical or polyhedral in nature, and offering improved bending and compressive strength.

公开(公告)号：US10051914B2

公开(公告)日：2018-08-21

申请号：US15193319

申请日：2016-06-27

申请人： NIKE, Inc.

发明人： Tory M. Cross ,  Kevin W. Hoffer ,  David P. Jones ,  Patrick B. Kirschner ,  Elizabeth Langvin ,  James C. Meschter

IPC分类号： A43B13/18 ,  A43B13/22 ,  A43B5/00 ,  A43B13/02 ,  A43C11/00 ,  A43B1/00 ,  A43B3/00 ,  A43B13/12 ,  B29C44/34 ,  A43B13/14 ,  A43B13/04 ,  A43C15/16

CPC分类号： A43B13/181 ,  A43B1/0009 ,  A43B3/0073 ,  A43B5/00 ,  A43B13/02 ,  A43B13/04 ,  A43B13/122 ,  A43B13/14 ,  A43B13/141 ,  A43B13/187 ,  A43B13/188 ,  A43B13/22 ,  A43B13/223 ,  A43B13/226 ,  A43C11/002 ,  A43C15/16 ,  B29C44/357 ,  Y10T428/24298

摘要： A material that includes at least one layer made of an auxetic structure and articles of footwear having soles comprising the materials. When the material is under tension, it expands in both the direction under tension and in the direction orthogonal to the direction under tension. The articles of footwear have soles that have at least one layer made of a material that has a pattern of apertures to provide the auxetic structure. The apertures are surrounded by sole portions that can rotate or pivot to change the size of the apertures. An outer covering can be mated with an outsole structure formed by the auxetic structure. The outer covering includes features that mate with the apertures in the outsole structure. The outer covering is elastic and can stretch to accommodate expansion of the auxetic structure.