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公开(公告)号：US20190001546A1
公开(公告)日：2019-01-03
申请号：US15639106
申请日：2017-06-30
Applicant: Dow Global Technologies LLC
Inventor： Wenyi Huang , Jeffrey D. Wenzel , Jie Feng , Robert E. Wrisley , Hyunwoo Kim , Kurt A. Koppi , Scott R. Kaleyta , Thomas J. Parsons , Nicolas Cardoso Mazzola , Harpreet Singh
Abstract: The present disclosure provides a die assembly for producing a microcapillary film. The die assembly includes a first die plate, a second die plate, a plurality of multi-jackbolt tensioners connecting the first die plate to the second die plate, a manifold, and a plurality of nozzles. The manifold is located between the pair of die plates and defines a plurality of film channels therebetween. The plurality of film channels converge into an elongate outlet, wherein a thermoplastic material is extrudable through the plurality of film channels and the elongate outlet to form a microcapillary film. The plurality of nozzles are located between the plurality of film channels. The plurality of nozzles are operatively connected to a source of channel fluid for emitting the channel fluid between layers of the microcapillary film, whereby a plurality of microcapillary channels are formed in the microcapillary film.
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公开(公告)号：US20220161459A1
公开(公告)日：2022-05-26
申请号：US17599687
申请日：2019-03-29
Applicant: Dow Global Technologies LLC , Dow Silicones Corporation
Inventor： Wenyi Huang , Nicholas J. Horstman , Jeffrey D. Wenzel , Qian Gou , Yabin Sun , Mohamed Esseghir , Yunfeng Yang , Yonghua Gong , Weiming Ma , Jeffrey M. Cogen , Hong Yang
Abstract: The present disclosure provides a pellet. In an embodiment, the pellet includes a body having a first end and an opposing second end. The body is composed of a polymeric material. The body has a length and a diameter (body diameter). A channel having a diameter (channel diameter), extends through the body from the first end to the second end. The pellet has a channel diameter-to-body diameter ratio from 0.05 to 0.45. The present disclosure also provides a process for soaking the pellet in a liquid additive and forming a loaded pellet with the additive in the pellet body.
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公开(公告)号：US20190248063A1
公开(公告)日：2019-08-15
申请号：US16344257
申请日：2017-10-20
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： Jay M. Tudor , Jeffrey D. Wenzel , Scott R. Kaleyta
CPC classification number: B29C51/082 , B29C51/32 , B29C70/46 , B29C70/545 , B29C70/56
Abstract: An article useful as a forming and cutting tool for molding composite material and cutting non-planar edges of molded composite material. The article includes an upper and lower die. The upper die includes an upper pressure pad with an upper shearing edge and an upper mold with a cavity. The lower die includes a lower pressure pad and a lower mold with a core and a lower shearing edge. The upper die is adapted to come into contact with the lower die so that the upper pressure pad and upper mold apply pressure to the lower pressure pad and lower mold to form a composite material blank into a formed composite structure. The upper die is adapted to contact the lower die so that the upper shearing edge bypasses the lower shearing edge to form a non-planar cut in at least a portion of a formed composite.
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公开(公告)号：US12138828B2
公开(公告)日：2024-11-12
申请号：US17599687
申请日：2019-03-29
Applicant: Dow Global Technologies LLC , Dow Silicones Corporation
Inventor： Wenyi Huang , Nicholas J. Horstman , Jeffrey D. Wenzel , Qian Gou , Yabin Sun , Mohamed Esseghir , Yunfeng Yang , Yonghua Gong , Weiming Ma , Jeffrey M. Cogen , Hong Yang
Abstract: The present disclosure provides a pellet. In an embodiment, the pellet includes a body having a first end and an opposing second end. The body is composed of a polymeric material. The body has a length and a diameter (body diameter). A channel having a diameter (channel diameter), extends through the body from the first end to the second end. The pellet has a channel diameter-to-body diameter ratio from 0.05 to 0.45. The present disclosure also provides a process for soaking the pellet in a liquid additive and forming a loaded pellet with the additive in the pellet body.
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公开(公告)号：US10730222B2
公开(公告)日：2020-08-04
申请号：US15639106
申请日：2017-06-30
Applicant: Dow Global Technologies LLC
Inventor： Wenyi Huang , Jeffrey D. Wenzel , Jie Feng , Robert E. Wrisley , Hyunwoo Kim , Kurt A. Koppi , Scott R. Kaleyta , Thomas J. Parsons , Nicolas Cardoso Mazzola , Harpreet Singh
IPC: B32B27/30 , B29C48/30 , B29C48/305 , B29C48/07 , B29C48/08 , B29C48/19 , B29C48/20 , B29C48/21 , B29C48/86 , B29C48/11 , B29C48/255 , B32B27/32 , B32B27/34 , B32B27/36 , B29L7/00 , B29L31/00
Abstract: The present disclosure provides a die assembly for producing a microcapillary film. The die assembly includes a first die plate, a second die plate, a plurality of multi-jackbolt tensioners connecting the first die plate to the second die plate, a manifold, and a plurality of nozzles. The manifold is located between the pair of die plates and defines a plurality of film channels therebetween. The plurality of film channels converge into an elongate outlet, wherein a thermoplastic material is extrudable through the plurality of film channels and the elongate outlet to form a microcapillary film. The plurality of nozzles are located between the plurality of film channels. The plurality of nozzles are operatively connected to a source of channel fluid for emitting the channel fluid between layers of the microcapillary film, whereby a plurality of microcapillary channels are formed in the microcapillary film.
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Patent Agency Ranking
公开(公告)号：US10315368B2
公开(公告)日：2019-06-11
申请号：US14783241
申请日：2014-04-22
Applicant: Dow Global Technologies LLC
Inventor： Jeffrey D. Wenzel , Jay M. Tudor , Dev Barpanda , Scott R. Kaleyta
Abstract: A forming and trimming tool (100) operable to form and trim a composite material part. The tool includes a lower die (150), a core (115) mounted to the lower die, at least one lower pressure pad (120) mounted to the lower die, and a cutter (125) mounted to the lower die. Additionally, the tool includes an upper die (105), a cavity mounted to the upper die, and at least one upper pressure pad (110) mounted to the upper die.
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公开(公告)号：US20220193956A1
公开(公告)日：2022-06-23
申请号：US17599368
申请日：2019-03-29
Applicant: Dow Global Technologies LLC , DOW SILICONES CORPORATION
Inventor： Wenyi Huang , Nicholas J. Horstman , Jeffrey D. Wenzel , Qian Gou , Yabin Sun , Mohamed Esseghir , Yunfeng Yang , Yonghua Gong , Weiming Ma , Hong Yang
Abstract: A die assembly (5) including: (i) a die plate (10) having an inlet surface (15) and an opposing discharge surface (35); (ii) an inlet (30) on the inlet surface (15) and a first axis of symmetry (A) extending through the inlet (30) and perpendicular to the inlet surface (15); (iii) a discharge port (45) on the discharge surface (35) and a second axis of symmetry (B) extending through the discharge port (45) and perpendicular to the discharge surface (35). The first and second axes are apart from, and parallel to, one another. The die assembly (5) includes (iv) an extrudate passage (42) fluidly connecting the inlet (30) and the discharge port (45). A third axis of symmetry (C) extends through the extrudate passage (42). The die assembly (5) includes (v) a nozzle (100) mounted in the die plate (10), the nozzle (100) having an injection tip (110) in the extrudate passage (42) at the discharge port (45); and (vi) the third axis of symmetry (C) intersects the first axis of symmetry (A) to form an acute angle.
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公开(公告)号：US11267189B2
公开(公告)日：2022-03-08
申请号：US16302907
申请日：2017-05-23
Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM AND HAAS COMPANY
Inventor： Jeffrey D. Wenzel , Michael T. Petr , Mark Mirgon , Jay M. Tudor , Sam L. Crabtree , Jie Feng
IPC: B29C57/04
Abstract: An apparatus comprising: (a) a mandrel; (b) an internal guide spaced apart from the mandrel; (c) an external guide extending around all or a portion of the internal guide and being spaced apart from the mandrel; wherein a pipe extends between the internal guide and the external guide and then over the mandrel so that the mandrel changes one or more dimensions of the pipe.
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公开(公告)号：US20190275729A1
公开(公告)日：2019-09-12
申请号：US16302907
申请日：2017-05-23
Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM AND HAAS COMPANY
Inventor： Jeffrey D. Wenzel , Michael T. Petr , Mark Mirgon , Jay M. Tudor , Sam L. Crabtree , Jie Feng
IPC: B29C57/04
Abstract: An apparatus comprising: (a) a mandrel; (b) an internal guide spaced apart from the mandrel; (c) an external guide extending around all or a portion of the internal guide and being spaced apart from the mandrel; wherein a pipe extends between the internal guide and the external guide and then over the mandrel so that the mandrel changes one or more dimensions of the pipe.
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公开(公告)号：US20180043584A1
公开(公告)日：2018-02-15
申请号：US15554906
申请日：2016-03-18
Applicant: Dow Global Technologies LLC
Inventor： Jie Feng , Mark W. Brown , Xue Chen , Pankaj Gupta , Dwight D. Latham , Liangkai Ma , Michael T. Malanga , Rujul M. Mehta , Kamesh R. Vyakaranam , Jeffrey D. Wenzel , Jeffery D. Zawisza
CPC classification number: B29C39/32 , B29C39/10 , B29C45/0001 , B29C45/14622 , B29L2023/225 , F16L59/161 , F16L59/163
Abstract: The present invention relates to a process to reduce internal stresses in insulation molded onto complex pipes, preferably complex subsea pipe, to reduce cracking in the molded insulation. Insulation materials applies to complex pipes comprising branches, i.e., valves, and the like, may be susceptible to cracking at, or near where the branch connects to the pipe as the coating of insulation material cures or hardens. The process of the present invention aims to reduce post molded cracking by reducing molded in stress at the branch/pipe junction. This is accomplished by providing a preform at or near a branch/pipe junction prior to applying the coating of insulation material.
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