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公开(公告)号：US12157259B2
公开(公告)日：2024-12-03
申请号：US17767792
申请日：2020-10-07
Applicant: Windmöller & Hölscher KG
Inventor： Karsten Golubski , Tobias Kulgemeyer , Martin Backmann , Tim Kirchhoff , Jens Althermeler
IPC: B29C48/32 , B29C37/00 , B29C48/00 , B29C48/08 , B29C48/325 , B29C48/355 , B29C48/92 , B29C55/28
Abstract: The invention describes a process for starting up a film production in a film manufacturing machine, in particular a blown film machine, by means of a control device, comprising the following steps: detecting a start-up request setting start-up parameters providing film material commencing the film production setting film production parameters.
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公开(公告)号：US20240316852A1
公开(公告)日：2024-09-26
申请号：US18332862
申请日：2023-06-12
Inventor： Min Hung Chen , Fang-Yun Lin , You-Hung Lu
CPC classification number: B29C48/272 , B29C48/0018 , B29C48/32 , B29C55/28 , B29K2031/04
Abstract: A mold assembly has a pressing mold, a shunt cone, and a mold cap. The shunt cone is disposed in the pressing mold to define a conical pressing channel. The shunt cone has a body, an inlet channel, and an outlet channel. The body has a conical cone portion. The inlet channel has an extension height from a top of shunt cone being higher than an extension height of the inlet channel from the top of the shunt cone. The mold cap is attached to a bottom of the pressing mold and has a lower mold cavity to allow the cone portion to extend into the lower mold cavity and to define a conical shaped connection channel. The connection channel communicates with the pressing channel, and a material input channel is defined in the mold cap and communicating with the connection channel.
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公开(公告)号：US12012472B2
公开(公告)日：2024-06-18
申请号：US17263173
申请日：2019-07-29
Applicant: Univation Technologies, LLC
Inventor： Bo Liu , Yi Zhang , Ayush A. Bafna , François Alexandre , Robert N. Reib
IPC: C08F210/16 , B29C55/28 , C08J5/18 , B29K23/00 , B29K105/00
CPC classification number: C08F210/16 , B29C55/28 , C08J5/18 , B29K2023/08 , B29K2105/0085 , C08J2323/08
Abstract: A unimodal ethylene-co-1-hexene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of melt elasticity and complex viscosity ratio (shear thinning) properties. A blown film consisting essentially of the unimodal ethylene-co-1-hexene copolymer. A method of synthesizing the unimodal ethylene-co-hexene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-hexene copolymer.
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公开(公告)号：US20240083083A1
公开(公告)日：2024-03-14
申请号：US17767792
申请日：2020-10-07
Applicant: Windmöller & Hölscher KG
Inventor： Karsten Golubski , Tobias Kulgemeyer , Martin Backmann , Tim Kirchhoff , Jens Althermeler
IPC: B29C48/00 , B29C48/08 , B29C48/355 , B29C48/92 , B29C55/28
CPC classification number: B29C48/0018 , B29C48/0019 , B29C48/0022 , B29C48/08 , B29C48/355 , B29C48/92 , B29C55/28 , B29C2793/0027 , B29C2793/0036 , B29C2793/009 , B29C2948/926 , B29C2948/92647 , B29C2948/92704
Abstract: The invention describes a process for starting up a film production in a film manufacturing machine, in particular a blown film machine, by means of a control device, comprising the following steps:
detecting a start-up request
setting start-up parameters
providing film material
commencing the film production
setting film production parameters.-
公开(公告)号：US20240042666A1
公开(公告)日：2024-02-08
申请号：US18265275
申请日：2020-12-03
Applicant: THE SUPREME INDUSTRIES LTD
Inventor： Ole-Bendt RASMUSSEN
CPC classification number: B29C48/002 , C08J5/18 , B29C48/0018 , B29C48/08 , B29C55/28 , C08J2300/16 , B29K2995/0088 , B29K2995/006 , B29K2995/0053
Abstract: The invention provides a process to orient a high molecular weight polymer film, formed from molten, dispersed or dissolved state, characterised in that as a start of this orientation process the film becomes embossed in a pattern of closely spaced dots or thin short lines, 5 thereby becoming oriented within these embossments, whereafter the orientation process is continued in one or more steps by m.d. stretching, t.d. stretching, or combined m.d. and t.d. stretching, whereby the embossed and oriented dots or lines gradually grow and develop until essentially the entire film has become oriented.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230241830A1
公开(公告)日：2023-08-03
申请号：US18100025
申请日：2023-01-23
Applicant: HOSOKAWA ALPINE Aktiengesellschaft
Inventor： Bernd BAYER , Georg SCHARPF , Hans-Peter SCHÜLE
CPC classification number: B29C48/92 , B29C48/0018 , B29C55/28 , B29C48/0022 , B29C2948/92152 , B29C2948/92447 , B29C2948/92647 , B29C2793/009
Abstract: The thickness profile of a film tube manufactured using a film blowing process is regulated using a control system consisting of segmented control zones and at least at two measuring units for the film thickness such that the specified target film thickness profile exhibits deviations from a uniform film thickness in the form of one or two thin spots opposite each other, which serve to compensate for film thickness changes across the film width which occur during the monoaxial orientation in machine direction so that a film web is produced as a result of orientation whose thickness profile has as few deviations as possible from the target thickness across the entire width of the film web, the final film should exhibit a thickness profile where the thickness increase from the middle of the film to the edges is as minor as possible and the flatness of the film is improved.
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7.发明公开公开(公告)号：US20230173740A1
公开(公告)日：2023-06-08
申请号：US17912764
申请日：2021-03-16
Applicant: Windmöller & Hölscher KG
Inventor： Martin Backmann , Karsten Golubski , Manuel Sollert , Raphael Gross
Abstract: The invention describes a stretching device for stretching a plastic film in its transport direction, having a first roller that can be driven by a first drive and can be rotated at a first rotational speed, and having a second roller that can be driven by a second drive and can be rotated at a second rotational speed, the second rotational speed being greater than the first rotational speed, the second roller being arranged downstream of the first roller in the transport path of the plastic film.
The device is characterized by means of varying the amount of air between the plastic film and flat elements of the first roller and/or the second roller on which the film rests.-
公开(公告)号：US11623435B2
公开(公告)日：2023-04-11
申请号：US17129840
申请日：2020-12-21
Inventor： Guangquan Hu
IPC: B32B27/36 , B32B7/12 , B32B15/09 , B32B15/20 , B32B27/08 , B32B27/18 , B32B27/30 , B32B27/32 , B32B37/00 , B32B37/10 , B29C65/78 , B29C55/02 , B29C55/30 , C08L23/08 , C08L23/06 , C08L23/04 , B29C65/00 , B32B1/08 , B29C55/28 , B29C65/20 , B32B27/20 , B32B37/12 , B32B15/082 , B32B37/02 , C08K9/04 , C08K9/06 , C08J5/18 , C08K3/34 , H01B7/18 , H01B7/17
Abstract: This application provides a composite film for a cable wrapping layer and a preparation method for the same. The composite film for the cable wrapping layer includes a PE film layer, a PET film layer laminated at the PE film layer, an aluminum foil layer laminated at the PET film layer, and a bonding layer arranged between the PET film layer and the aluminum foil layer. The PE film layer is made of raw materials having the following parts by weight: 40-45 parts of LLDPE with a melt index of 0.9-1.1 g/10 min and a density of 0.920-0.922 g/cm3, 35-40 parts of m-LLDPE with a melt index of 1.9-2.1 g/10 min and a density of 0.917-0.920 g/cm3 and 15-25 parts of ethylene-vinyl acetate copolymer.
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公开(公告)号：US20220126497A1
公开(公告)日：2022-04-28
申请号：US17568226
申请日：2022-01-04
Applicant: Addex, Inc.
Inventor： Robert E. Cree , William J. Randolph
Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Significant increases in production speeds are achieved with improved film quality over an increased range of tubular film sizes, down to a minimum size which occurs when operating at zero internal to molten film tube pressure.
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公开(公告)号：US11298865B2
公开(公告)日：2022-04-12
申请号：US15348640
申请日：2016-11-10
Applicant: Addex, Inc.
Inventor： Robert E. Cree , William J. Randolph
Abstract: The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Additionally, at least one cooling element is provided, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas.
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