公开(公告)号：US20240269909A1

公开(公告)日：2024-08-15

申请号：US18568024

申请日：2022-06-10

申请人： Randcastle Extrusion Systems, Inc.

发明人： Keith Luker

IPC分类号： B29C48/255 ,  B29C48/515 ,  B29C48/66 ,  B29C48/68 ,  B29C48/76

CPC分类号： B29C48/2552 ,  B29C48/515 ,  B29C48/66 ,  B29C48/68 ,  B29C48/766

摘要： An extruder mixer and extruder mixer section are provided. The extruder mixer section includes inlet and outlet channels and an intermediate channel separated by pumps and bound by a flight portion. Also provided are methods of mixing polymers with the extruder mixer section. An extrusion system using the extruder mixer section is also provided.

公开(公告)号：US11104053B2

公开(公告)日：2021-08-31

申请号：US15296712

申请日：2016-10-18

申请人： SUMITOMO RUBBER INDUSTRIES, LTD.

发明人： Masayuki Sakamoto ,  Tomoo Tanaka ,  Takuma Konishi

IPC分类号： B29C48/66 ,  B29C48/60 ,  B29C48/76 ,  B29C48/685 ,  B29C48/54 ,  B29C48/68 ,  B29C48/25 ,  B29B7/74 ,  B29B7/84 ,  B29C48/67 ,  B29K21/00

摘要： The extruder includes: a cylinder having a first end portion and a second end portion respectively formed at two ends of the cylinder in an axial direction, and an ejection port formed in the first end portion; a screw including a shaft that is configured to rotate within the cylinder, and a screw blade that is provided on an outer circumferential surface of the shaft; a supplier that is attached to the second end portion side of the cylinder and is configured to supply a kneading target to an inside of the cylinder; and a plurality of protruding members that protrude from an inner wall surface of the cylinder.

公开(公告)号：US11077598B2

公开(公告)日：2021-08-03

申请号：US16344691

申请日：2017-10-13

申请人： Dow Global Technologies LLC

发明人： Qian Gou ,  Mark A. Spalding ,  Bharat I. Chaudhary ,  Karl Seven

IPC分类号： B29C48/53 ,  C08F10/02 ,  C08J3/24 ,  B29C48/66 ,  B29C48/25 ,  B29C48/505

摘要： Lower discharge temperatures and improved flow rates are obtained for the processing of meltable, solid crosslinkable compositions comprising a polymer, e.g., polyethylene, and a peroxide, in a single barrel extruder by equipping the extruder with an energy transfer (ET) screw that comprises: (1) an ET section with a distance averaged ET section depth of 8.0% to 10% of the extruder barrel internal diameter, and (2) a metering section with a metering section depth of 6.0% to 8% of the extruder barrel internal diameter.

公开(公告)号：US20230075388A1

公开(公告)日：2023-03-09

申请号：US17759274

申请日：2020-09-24

申请人： Nakata Engineering Co., Ltd.

发明人： Tadasuke SATO ,  Makoto NODA

IPC分类号： B29C48/66 ,  B29C48/08 ,  B29C48/685 ,  B29C48/68 ,  B29C48/59

摘要： A screw has a spiral blade for extruding and kneading a high-silica plastic elastomer containing not less than 100 phr of silica. The screw has a first section located on the most downstream side in the extrusion direction and provided with a barrier extending between the adjacent spiral blade threads, while inclining with respect to the screw axial direction. The length of the barrier is 1.5 to 3.0 times the lead length of the spiral blade in the first section. The height of the barrier is 2 to 10 mm lower than the height of the spiral blade. The barrier thickness is 0.9 to 3.0 times the height difference between the spiral blade and barrier.

公开(公告)号：US20220080620A1

公开(公告)日：2022-03-17

申请号：US17425215

申请日：2019-11-28

申请人： Nakata Engineering Co., Ltd.

发明人： Tadasuke SATO ,  Noriyuki TAKEDA ,  Makoto NODA

IPC分类号： B29B7/42 ,  B29C48/68 ,  B29C48/395 ,  B29C48/565 ,  B29C48/66 ,  B29C48/285 ,  B29C48/605 ,  B29C48/645 ,  B29C48/685 ,  B29K21/00

摘要： A screw with a spiral blade for extruding a plastic elastomer while kneading the plastic elastomer, the screw includes a kneading region where the spiral blade is provided with cutout portions being configured to pass pins, and a plasticizing region being arranged on a downstream side in an extrusion direction of the kneading region. The plasticizing region includes a barrier extending between portions adjacently in the extrusion direction of the spiral blade.