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1. 发明授权

US11504922B2 Multi-layered composite structures and methods for the preparation thereof 有权
公开(公告)号：US11504922B2
公开(公告)日：2022-11-22
申请号：US16087046
申请日：2016-03-23
申请人： Donkervoort Automobielen B.V.
发明人： Jacob Adrianus Donkervoort , Jordi Wiersma
IPC分类号： B29C70/08 , B32B27/38 , B29C70/02 , B32B27/06 , B32B5/20 , B32B5/24 , B32B27/08 , B32B5/18 , B32B5/26 , B29C44/04 , B29C44/12 , B29C44/34 , B29C44/60 , B29C70/44 , B29L9/00 , B29K105/00 , B82Y30/00
摘要： The present invention relates to multi-layered composite structures and to methods for the preparation thereof. The present multi-layered composite structures are light weight and capable of high load bearing making the present multi-layered composite structures especially suitable to be used as load bearing structures in, for example, automotive. Specifically, the present invention relates to methods comprising the steps of a) providing a mould for said multi-layered composite structure; b) layering said mould with two or more layers forming the outer surface of said multi-layered composite; c) filling said layered mould with a mixture comprised of non-expanded heat-expandable microspheres and closing said mould; and d) subjecting said closed mould to a temperature of 80° C. to 140° C. during 1 to 230 minutes thereby providing a relative pressure in said closed mould of 0.1 to 20 bar through expansion of said heat-expandable microspheres thereby forming a multi-layered composite structure in said mould with a foam enforced inner core and a multi-layered outer surface; and e) separating the multi-layered composite structure from said mould.

2. 发明授权

US11298217B2 Porous devices and processes for producing same 有权
公开(公告)号：US11298217B2
公开(公告)日：2022-04-12
申请号：US16524541
申请日：2019-07-29
申请人： Vertera Inc.
发明人： Wei-Hsiang Chang , Stephen Lee Laffoon , Christopher S. D. Lee , David Lee Safranski
IPC分类号： A61F2/07 , A61L27/18 , A61F2/00 , A61L31/06 , B29C67/20 , C08J9/00 , C08J9/26 , A61B90/00 , A61B6/00 , A61F2/44 , A61L27/50 , A61L27/56 , B29C44/04 , B29C44/34 , A61B6/12 , B29K71/00 , B29L31/00
摘要： Devices and methods for making a polymer with a porous layer from a solid piece of polymer are disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.

3. 发明申请

US20210339439A1 Method of Forming an Article 有权
公开(公告)号：US20210339439A1
公开(公告)日：2021-11-04
申请号：US17272699
申请日：2019-09-02
申请人： Bockatech Ltd.
发明人： Peter Clarke
IPC分类号： B29C44/02 , B29C44/04 , B29C44/42 , B29C44/58 , B29C44/34
摘要： Method of forming an article from a molten plastic composition including a polymer and a blowing agent. The method provides that during an injecting step (c) and a packing step (d), the injection pressure and the packing pressure, respectively, are maintained above a minimum pressure threshold in at least one second region of the cavity to maintain the physical blowing agent as a gas dissolved in the polymer so that substantially no gas bubbles are formed in the at least one second region, during a mould opening step (e), at least some of the molten plastic composition is exposed to an external pressure lower than a minimum pressure threshold to form in the article at least one first portion having expanded cellular foam formed from the plastic composition, and prior to the opening step (e), the plastic composition in the at least one second region of the cavity has been cooled so as to be fully solidified to form in the article at least one second portion having a substantially homogeneous, solid phase, unexpanded plastic composition

4. 发明授权

US11161284B2 Method for producing a molded part and molded part 有权
公开(公告)号：US11161284B2
公开(公告)日：2021-11-02
申请号：US16137183
申请日：2018-09-20
申请人： adidas AG
发明人： Christopher Edward Holmes , Daniel Stephen Price , Giridharan Kirupanantham , Rowan John Boyd
IPC分类号： B29C44/02 , A43B13/18 , B29C44/04 , B29D35/12 , B29C44/08 , B29C44/34 , B29C44/00 , B29C44/58 , B29L31/50 , B29K77/00 , A43B13/04
摘要： A method for producing a molded part, in particular a component of a sporting good, includes providing a mixture of a polymer melt and a foaming agent and injecting the mixture into a mold. The method includes solidifying at least a first portion of the molded part without foaming and at least a second portion of the molded part after foaming inside the mold, wherein the mixture includes a polymer having an average molecular mass corresponding to a viscosity number ≥130 ml/g, preferably ≥170 ml/g, more preferably ≥190 ml/g and most preferably ≥225 ml/g, wherein the viscosity number is determined via solution viscometry according to the ISO 307 standard.

5. 发明申请

US20210317279A1 FOAM COMPOSITIONS AND METHODS OF MAKING SAME 有权
公开(公告)号：US20210317279A1
公开(公告)日：2021-10-14
申请号：US17267557
申请日：2019-09-13
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Jeffrey P. Kalish , Caitlin E. Meree , Joshua M. Fishman , Michael W. Voigt
IPC分类号： C08J9/00 , C08K3/34 , C08J9/10 , B29C44/06 , B29C44/04 , B29C44/56
摘要： Open cell foam compositions are provided including a thermoplastic polymeric matrix and at least one filler. In some embodiments of the foam compositions, the filler includes nepheline syenite. Methods of making the foam compositions are described, the methods including (a) obtaining a composite materials containing a first thermoplastic polymer having a filler component and a blowing agent distributed therein; (b) coextruding the composite material with a second thermoplastic polymer and a third thermoplastic polymer to form a three-layer composition, wherein the three-layer composition includes a middle layer comprising an open cell foam formed from the foam composition, and the middle layer is disposed between the first and the second outer layers formed from the second and the third thermoplastic polymers, respectively; and (c) separating the middle layer from each of the first and the second outer layer. The first thermoplastic polymer is different from the second and the third thermoplastic polymers.

6. 发明授权

US11135796B2 Methods for forming footwear using recycled plastics 有权
公开(公告)号：US11135796B2
公开(公告)日：2021-10-05
申请号：US16425299
申请日：2019-05-29
申请人： NIKE, Inc.
发明人： Bryan N. Farris , Noah Murphy-Reinhertz
IPC分类号： A43B1/00 , B29D35/00 , B29D35/12 , A43B13/04 , A43B1/12 , B29C45/16 , B29C39/02 , B29C70/64 , B29B17/00 , B29C44/04 , C08J9/10 , C08J11/06 , B29C37/00
摘要： Presented are manufacturing systems, methods, and devices for forming footwear using scrap or waste plastic materials. A method for manufacturing an article of footwear, such as an athletic shoe, begins with receiving a batch of recycled plastic, which may include thermoplastic elastomers or ethylene-vinyl acetate, and grinding the batch of recycled plastic material. The ground recycled material is processed, for example, by adding a foaming agent that activates at elevated temperatures. The processed recycled material is placed into the internal cavity of a final mold that is shaped like a segment of the footwear, such as a unitary sole structure. To form the footwear segment, the processed recycled material is heated past the threshold activation temperature of the foaming agent such that the foaming agent causes the recycled material to expand and fill the internal cavity of the final mold. The formed footwear segment is then extracted from the mold.

7. 发明授权

US11007687B2 Polyurethane injection system and method 有权
公开(公告)号：US11007687B2
公开(公告)日：2021-05-18
申请号：US16145407
申请日：2018-09-28
申请人： LEGACY FOAM, LLC
发明人： Bruce M. Okkema
IPC分类号： B29C44/42 , B29C45/27 , B29B7/00 , B29C44/34 , B29C44/04 , B29B7/80 , B29C44/58 , B29B7/74 , B29C45/04 , B29C33/34 , B29K105/04 , B29K75/00 , B29K105/00
摘要： A system and method to dispense, mix, and inject liquids and force them into a vented investment pattern mold cavity comprises a source of raw materials in fluid communication with an injection unit for metering and delivering the raw materials. A mixing and injection head receives and mixes the metered raw materials. A movable molding cart upon which an investment pattern mold is mounted is disposed adjacent the injection unit and proximate the mixing and injection head. The movable molding cart includes a fill cup that may be engaged by the mixing and injection head. A displaceable gating tray provides fluid communication with the fill cup and a sprue aligned with an investment port on a lower portion of the investment pattern mold. The system also includes a digital computer control by which the injection process may be controlled.

8. 发明申请

US20210086412A1 SINGLE-PHASE SOLUTION MOLDING 有权
公开(公告)号：US20210086412A1
公开(公告)日：2021-03-25
申请号：US17107404
申请日：2020-11-30
申请人： NIKE, Inc.
发明人： Jeffrey E. Darland , Ryan Alvin Mace
IPC分类号： B29C44/04 , B29C44/34 , B29C44/10
摘要： Aspects hereof provide methods for molding a single-phase solution comprised of a polymer composition and a gas. The polymer composition and the gas are maintained under pressure during the molding operation to prevent a cellular structure from being formed by the dissolved gas in the polymer composition coming out of solution. The mold cavity in which the single-phase solution is introduced for molding purposes is pressurized to a mold pressure that is sufficient to maintain the single-phase solution as a single-phase solution as the mold cavity is filled. Subsequent to filling the mold cavity with the single-phase solution under pressure, the resulting article may be exposed to a reduction in pressure causing the entrapped gas to form a cellular structure.

9. 发明授权

US10850434B2 Single-phase solution molding 有权
公开(公告)号：US10850434B2
公开(公告)日：2020-12-01
申请号：US15993022
申请日：2018-05-30
申请人： NIKE, Inc.
发明人： Jeffrey E. Darland , Ryan Alvin Mace
IPC分类号： B29C45/17 , B29C44/34 , B29C44/04 , B29C44/10 , B29K105/04 , B29K101/12 , B29C44/08 , B29C45/00 , B29K23/00 , B29K75/00 , B29K105/24
摘要： Aspects hereof provide methods for molding a single-phase solution comprised of a polymer composition and a gas. The polymer composition and the gas are maintained under pressure during the molding operation to prevent a cellular structure from being formed by the dissolved gas in the polymer composition coming out of solution. The mold cavity in which the single-phase solution is introduced for molding purposes is pressurized to a mold pressure that is sufficient to maintain the single-phase solution as a single-phase solution as the mold cavity is filled. Subsequent to filling the mold cavity with the single-phase solution under pressure, the resulting article may solidify entrapping the compressed gas, or the article may be exposed to a reduction in pressure causing the entrapped gas to form a cellular structure.

10. 发明申请

US20200325299A1 REDUCED DENSITY THERMOPLASTICS 审中-公开
公开(公告)号：US20200325299A1
公开(公告)日：2020-10-15
申请号：US16673368
申请日：2019-11-04
申请人： Corumat, Inc.
发明人： Michael WAGGONER
IPC分类号： C08J9/34 , B29C44/34 , C08J9/36 , B29C44/04 , B29C44/02 , B29C44/60 , B29C51/42 , B29C51/46 , B32B5/20
摘要： The instant application discloses, among other things, ways to manufacture reduced density thermoplastics. A rapid foaming process which may create a polymer product by saturating thermoplastic sheet or preforms, heating, and then forming into final shape, is described. The polymer product may include an integral solid skin. This method may be utilized with any thermoplastic. The material handling, saturation methods, and end products are also described.

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