B29B 7/20

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Description

Class  B29B : PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS


Subclass 7/20: Mixing; Kneading (in general B01F; combined with calendering B29C 43/24, with injection B29C 45/46, with extrusion B29C 47/36) non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12202179 Supercritical fluid injection foaming polylactide foam material and preparation method thereforSep 11, 20Jan 21, 25Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences
12042957 Output mechanism of a mixer with converging conical twin screwsJan 28, 20Jul 23, 24Compagnie Generale des Etablissements Michelin
12018148 Ultralow-gloss PC/ABS resin composition and preparation method thereofJan 18, 19Jun 25, 24SHANGHAI KUMHOSUNNY PLASTICS CO., LTD.
11931709 Apparatus for mixing materials dissolved in a high-pressure working fluidOct 24, 18Mar 19, 24Kabushiki Kaisha Kobe Seiko Sho ( Kobe Steel Ltd.)
11827769 Reinforcement of elastomers by reactive ionic surfactantFeb 12, 21Nov 28, 23The University of Akron
11732058 Thermoplastic starch and starch-based biodegradable filmJul 24, 20Aug 22, 23Nanjing Wurui Biodegradable New Material Research Institute Co., LTD.
11279060 Apparatus and method for extruding rubber mixturesDec 21, 16Mar 22, 22Compagnie Generale des Etablissements Michelin
11267162 Kneading rotor and batch-type kneading machineMar 18, 19Mar 08, 22Kobe Steel, Ltd.
10487202 Composition comprising polypropylene and polyol, and method of making the sameNov 09, 18Nov 26, 19Braskem America, Inc.
10449547 Preparation of a powdery pharmaceutical composition by means of cryo-millingMay 25, 16Oct 22, 19GRÜNENTHAL GMBH
10155860 Composition comprising polypropylene and polycarbonate polyol, and method of making the sameAug 07, 15Dec 18, 18Braskem America, Inc.
10124511 Modified tire sealant mixing deviceApr 27, 18Nov 13, 18The Goodyear Tire & Rubber Company
9902854 Polyamide composite resin composition for fuel filler pipeJul 26, 16Feb 27, 18HYUNDAI MOTOR COMPANY, KOREA FUEL-TECH CORPORATION, SHINIL CHEMICAL INDUSTRY CO., LTD.,
9896637 Sliding member, method of manufacturing sliding member, and gearApr 06, 16Feb 20, 18JTEKT CORPORATION
9126158 Devices for carrying out mechanical, chemical and/or thermal processesSep 21, 09Sep 08, 15LIST TECHNOLOGY AG
7556419 Machine for mixing and extruding rubber-based and silicone-based plastic materials and method thereforOct 28, 03Jul 07, 09COLMEC S.P.A.
7476017 Intermeshing kneader with tilting mixing chamberSep 28, 06Jan 13, 09Not available
7244060 Kneading apparatusNov 26, 02Jul 17, 07KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.), Kobe Steel, Ltd.,
6609819 Twin screw extruder with conical non-parallel converging screwsFeb 05, 02Aug 26, 03Wenger Manufacturing, Inc.
6260995 Mixing apparatusJan 07, 99Jul 17, 01Bayer Aktiengesellschaft, BAYER INTELLECTUAL PROPERTY GMBH,

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2024/0399,623 INTERNAL MIXING EXTRUDEROct 10, 22Dec 05, 24WUXI BOYU PLASTIC MACHINERY CO., LTD.
2022/0258,379 MIXING AND EXTRUSION MACHINE WITH SELF-CLEANING TWIN SCREW AND METHOD OF USEFeb 25, 20Aug 18, 22Not available
2022/0152,874 TWIN-SCREW MIXING AND EXTRUSION MACHINE WITH MOBILE ELEMENTSJan 28, 20May 19, 22Not available
2021/0402,648 MESHING-TYPE RUBBER INTERNAL MIXER AND WORKING METHOD THEREOFJan 18, 21Dec 30, 21Not available

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Patents Issued To Date - By Filing Year

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