公开(公告)号：US11260648B2

公开(公告)日：2022-03-01

申请号：US16062802

申请日：2016-12-16

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

Inventor： Christophe Ougier ,  Arnaud Letocart

IPC: B33Y10/00 ,  B29C48/515 ,  B29C48/84 ,  B29C48/85 ,  B29C48/505 ,  B29C48/395 ,  B33Y80/00 ,  B29C48/92 ,  B22F10/20

Abstract: A screw having a longitudinal body and, around this longitudinal body, at least one flight extending in the shape of a helix, the flight including, over part of its length, internal partitioning delimiting a plurality of internal channels that extend in the shape of helices following the helix shape of the flight. The screw includes manifold-like cavities into which the ends of the interior canals open, the manifold-like cavities extending radially and opened into a longitudinal bore of the body at longitudinally spaced locations. This screw can be produced by additive manufacturing using laser-induced fusion.

公开(公告)号：US20220001579A1

公开(公告)日：2022-01-06

申请号：US17291708

申请日：2019-12-06

Applicant: Next Generation Recyclingmaschinen GmbH

Inventor： Guenter KROISS

IPC: B29B17/04 ,  B29B17/00 ,  B29C48/275 ,  B29C48/385 ,  B29C48/505 ,  B29C48/84

Abstract: The invention relates to a method and a processing plant (1) for plastic material, for the recycling thereof. To this end, the processing plant (1) comprises a feed device (4), a processing unit (2) having a comminuting device (5) and a conveying device (6) adjoining the comminuting device (5), and an extrusion device (3) having an extruder screw (21). During its conveying movement along a first conveying section (9) toward a transfer region (8) by means of the conveying device (6), the comminuted plastic material is heated to a transfer temperature with a mean temperature value, which falls into the range of the softening temperature of the plastic material. In the transfer region (8), the comminuted plastic material is transferred to the extrusion device (3).

公开(公告)号：US11039629B2

公开(公告)日：2021-06-22

申请号：US16393228

申请日：2019-04-24

Applicant: Wenger Manufacturing Inc.

Inventor： LaVon Wenger ,  Allan C. Spellmeier ,  Philip B. Wiltz

IPC: B01F15/06 ,  B01F7/08 ,  B29C48/84 ,  B29C48/40 ,  A23K40/25 ,  B01F7/00 ,  A23N17/00 ,  A23K10/20 ,  A23K50/40 ,  A23P30/20

Abstract: High thermal transfer, hollow core extrusion screws (50, 52, 124, 126, 190) include elongated hollow core shafts (54, 128, 130, 192) equipped with helical fighting (56, 132, 134, 194) along the lengths thereof. The fighting (132, 134, 194) may also be of hollow construction which communicates with the hollow core shafts (54, 128, 130, 192). Structure (88, 90) is provided for delivery of heat exchange media (e.g., steam) into the hollow core shafts (54, 128, 130, 192) and the hollow fighting (132, 134, 194). The fighting (56, 132, 134, 194) also includes a forward, reverse pitch section (64, 162, 216). The extrusion screws (50, 52, 124, 126, 190) are designed to be used as complemental pairs as a part of twin screw processing devices (20), and are designed to impart high levels of thermal energy into materials being processed in the devices (20), without adding additional moisture.

公开(公告)号：US12214539B2

公开(公告)日：2025-02-04

申请号：US16307763

申请日：2017-06-20

Applicant: SACMI COOPERATIVA MECCANICI IMOLA SOCIETA′ COOPERATIVA

Inventor： Fiorenzo Parrinello ,  Fabrizio Pucci

IPC: B29C49/22 ,  B29C48/84 ,  B29C48/87 ,  B29C49/04

Abstract: A method for forming an object made of a polymeric material, wherein the polymeric material has a melting temperature (Tf), comprising the following steps: melting the polymeric material; cooling the polymeric material below the melting temperature (Tf); extruding the polymeric material into a tubular shaped body (H); inserting the tubular body (H) into a mould (60) having an internal cavity; closing off the tubular body (H) at a first end thereof; blowing air into the tubular body (H) through a second end, in order that the tubular body (H) adheres to the internal cavity of the mould (60).

公开(公告)号：US20240090689A1

公开(公告)日：2024-03-21

申请号：US18516262

申请日：2023-11-21

Applicant: Hearthmark, LLC

Inventor： Saumitra Bhargava

IPC: A47G21/18 ,  B29C48/84

CPC classification number: A47G21/18 ,  B29C48/845 ,  B29C48/919

Abstract: Biodegradable drinking straws and methods of making biodegradable drinking straws. The drinking straws are thin and functional, having a tactile feel similar to conventional drinking straws, and are biodegradable in 12 months or less. The drinking straws use less material while maintaining high thickness uniformity, reducing cost and increasing structural integrity.

公开(公告)号：US11186011B2

公开(公告)日：2021-11-30

申请号：US16487928

申请日：2018-02-21

Applicant: Entex Rust & Mitschke GmbH

Inventor： Harald Rust ,  Klaus Massow

IPC: B29B7/48 ,  B29C48/35 ,  B29C48/76 ,  B29C48/00 ,  B29C48/14 ,  B29C48/25 ,  B29C48/29 ,  B29C35/04 ,  B29C48/38 ,  B29C48/435 ,  B29C48/44 ,  B29C48/285 ,  B29C35/02 ,  B29K33/04 ,  B29K63/00 ,  B29K75/00 ,  B29K101/12 ,  B29C48/84 ,  B29C48/85 ,  B29C48/80

Abstract: A method for producing thermally crosslinkable polymers in a planetary roller extruder is presented. The planetary roller extruder has a filling part and a compounding part made of a roller cylinder region that comprises at least two, preferably at least three coupled roller cylinders, planetary spindles of which are driven by a common central spindle. The polymers are supplied in a plasticized state. The filling part is supplied with a vacuum. The flow temperatures of the central spindle and the at least two roller cylinders under a vacuum are set such that the polymers to be degassed remain in the plasticized state. One or more liquids, such as thermal crosslinkers, crosslinking accelerators, dye solutions, or dye dispersions, are metered to the plasticized polymers downstream of the vacuum degassing, preferably in a continuous manner. Finally, the resulting mixture is directly supplied to a coating assembly.

公开(公告)号：US20210337831A1

公开(公告)日：2021-11-04

申请号：US17375757

申请日：2021-07-14

Applicant: Wenger Manufacturing Inc.

Inventor： LaVon Wenger ,  Allan C. Spellmeier ,  Philip B. Wiltz

IPC: A23K40/25 ,  B01F15/06 ,  B01F7/00 ,  B01F7/08 ,  A23N17/00 ,  A23K10/20 ,  A23K50/40 ,  A23P30/20 ,  B29C48/84 ,  B29C48/40

Abstract: Apparatus and methods for food production including a food preconditioner (228) operable to heat and partially pre-cook food ingredients, and a twin screw extruder (20) operable to further cook the preconditioned ingredients to create final food products. The extruder (20) includes a pair of hollow core extrusion screws (50, 52, 124, 126, 190) having elongated hollow core shafts (54, 128, 130, 192) equipped with helical fighting (56, 132, 134, 194) along the lengths thereof. The fighting (132, 134, 194) is also of hollow construction which communicates with the hollow core shafts (54, 128, 130, 192). The fighting (56, 132, 134, 194) also includes forward, reverse pitch sections (64, 162, 216). The extrusion screws (50, 52, 124, 126, 190) are designed to impart high levels of thermal energy into materials being processed in the extruders (20), without adding additional moisture.

公开(公告)号：US20240270956A1

公开(公告)日：2024-08-15

申请号：US18560928

申请日：2022-03-23

Applicant: KINGFA SCI. & TECH. CO., LTD.

Inventor： Zhijun QIAN ,  Pingxu CHEN ,  Xianbo HUANG ,  Fei YU ,  Yuhang TANG ,  Tanghua GUO

IPC: C08L53/00 ,  B29C48/04 ,  B29C48/84 ,  B29C70/58 ,  B29K23/00 ,  B29K507/00 ,  B29L31/30 ,  C08K3/30 ,  C08K3/34 ,  C08K5/098 ,  C08K5/13 ,  C08K5/17 ,  C08K5/524 ,  C08K7/08 ,  C08L23/08

CPC classification number: C08L53/005 ,  B29C48/04 ,  B29C48/845 ,  B29C70/58 ,  C08K3/30 ,  C08K3/346 ,  C08K5/098 ,  C08K5/13 ,  C08K5/17 ,  C08K5/524 ,  C08K7/08 ,  C08L23/0807 ,  B29K2023/16 ,  B29K2507/00 ,  B29K2995/0063 ,  B29K2995/0077 ,  B29K2995/0082 ,  B29L2031/30 ,  C08K2003/3063 ,  C08L2205/03 ,  C08L2207/068

Abstract: Disclosed are a polypropylene composite material capable of blasting at a low temperature, and a preparation method therefor and application thereof. The polypropylene composite material comprises the following components in parts by weight: 35-75 parts of special polypropylene A, 3-10 parts of special polypropylene B, 15-30 parts of a filler, 2-10 parts of a special toughening agent, 15-25 parts of a toughening agent, 0.1-0.3 part of a lubricant, 0.1-0.3 part of a photostabilizer, and 0.2-0.6 part of an antioxidant, wherein the special toughening agent comprises ultrahigh molecular weight polyethylene and a metallocene ethylene-propylene copolymer. The polypropylene composite material that is capable of blasting at a low temperature and has good rigidity is prepared by using the special polypropylene A, the special polypropylene B, and the special toughening agent in combination with the normal filler and the normal toughening agent, and the polypropylene composite material has a wide application prospect.

公开(公告)号：US20240131768A1

公开(公告)日：2024-04-25

申请号：US18537425

申请日：2023-12-12

Applicant: The AZEK Group LLC

Inventor： Bruce Edward STANHOPE ,  Jeffrey S. Ross ,  Cesar Samano

IPC: B29C48/00 ,  B29C48/07 ,  B29C48/18 ,  B29C48/84

CPC classification number: B29C48/022 ,  B29C48/07 ,  B29C48/18 ,  B29C48/845 ,  B29K2001/00

Abstract: Polymer-based sheet materials having a variegated appearance are provided. The polymer-based-sheet material may have a core with one or more caps. The cap(s) may be on a first primary surface, a second primary surface, and/or sides. The variegation may be within and/or on the cap and/or the core. Methods, systems, articles, and materials effective for a polymer-based sheet material having a variegated appearance are provided.

公开(公告)号：US20230063776A1

公开(公告)日：2023-03-02

申请号：US17814642

申请日：2022-07-25

Applicant: Qingdao Zhenghengxiang Technology Co., LTD

Inventor： Fengyan MOU ,  Fuzhi HE ,  Qiaoling WANG

IPC: D01F1/10 ,  D01F8/14 ,  D01F8/06 ,  D01F8/12 ,  B29C48/00 ,  B29C48/05 ,  B29C48/21 ,  B29C48/84 ,  B29C48/28

Abstract: Disclosed are a variable-temperature yarn with a continuous sense of cold and a manufacturing method thereof. A fiber of the variable-temperature yarn with a continuous sense of cold comprises a skin part and a core part, wherein the core part is wrapped in the skin part and is made of a PCM or phase-change energy-storage wax, and a cross-sectional area of the PCM or phase-change energy-storage wax accounts for 5%-70% of a cross-sectional area of the fiber. More PCMs can be directly injected into a fiber core, so that a textile product has a stronger sense of cold, the sense of continuous cold of the product is greatly improved, the requirement of users for cold experience is better met, and the market blank is filled.