WO2020175485A1 - 粉体供給方法及び熱可塑性樹脂組成物の製造方法 - Google Patents
粉体供給方法及び熱可塑性樹脂組成物の製造方法 Download PDFInfo
- Publication number
- WO2020175485A1 WO2020175485A1 PCT/JP2020/007512 JP2020007512W WO2020175485A1 WO 2020175485 A1 WO2020175485 A1 WO 2020175485A1 JP 2020007512 W JP2020007512 W JP 2020007512W WO 2020175485 A1 WO2020175485 A1 WO 2020175485A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- powder
- cylinder
- thermoplastic resin
- hopper
- supplied
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7173—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper
- B01F35/71731—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper using a hopper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/47—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/70—Pre-treatment of the materials to be mixed
- B01F23/711—Heating materials, e.g. melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2805—Mixing plastics, polymer material ingredients, monomers or oligomers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2215/00—Auxiliary or complementary information in relation with mixing
- B01F2215/04—Technical information in relation with mixing
- B01F2215/0409—Relationships between different variables defining features or parameters of the apparatus or process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2215/00—Auxiliary or complementary information in relation with mixing
- B01F2215/04—Technical information in relation with mixing
- B01F2215/0413—Numerical information
- B01F2215/0418—Geometrical information
- B01F2215/0422—Numerical values of angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
- B01F27/724—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with a single helix closely surrounded by a casing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
- B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/02—Dispensing from vessels, e.g. hoppers
Definitions
- the present invention relates to a method of supplying a powder raw material into a container such as a hopper while flowing down the inside of a cylinder.
- Patent Documents 1 and 2 Conventionally, as illustrated in Patent Documents 1 and 2, it has been known to supply powder to an object such as a hopper of a melt-kneader while flowing down in a cylinder.
- Prior art documents
- Patent Document 1 Japanese Unexamined Patent Publication No. 20 0 4—3 2 2 4 7 3
- Patent Document 2 JP 2 0 1 2-7 6 2 7 5 Publication
- the present invention has been made in view of the above problems, and a powder supply method for suppressing powder clogging and scattering when powder is supplied to an object while flowing down in a cylinder.
- the purpose is to provide.
- a method according to the present invention is a powder supply method for causing powder supplied from an upper end of a cylinder to flow down in the cylinder and to be discharged from a lower end of the cylinder.
- the powder supply flow rate is IV! ,
- the cross-sectional area of the cross section perpendicular to the axis of the cylinder at the lower end of the cylinder The following expression is satisfied when [ ⁇ ! 2 ].
- the clogging and scattering of the powder at the time of supplying the powder is suppressed.
- the angle formed by the axis of the cylinder and the horizontal plane may be 40 to 90°. ⁇ 0 2020/175485 2 ⁇ (: 170? 2020 /007512
- the powder is supplied to a container, and at least a part of a lower end of the cylinder is located at the same height as an upper opening of the container, or a position lower than the upper opening.
- a method for producing a thermoplastic resin composition according to the present invention comprises a step of supplying a thermoplastic resin powder to a hopper of a melt-kneading device, and a step of supplying a second powder other than the thermoplastic resin powder to the hopper. And a step of melting and kneading the thermoplastic resin powder and the additive powder supplied to the hopper to obtain a thermoplastic resin composition, wherein when supplying the thermoplastic resin powder to the hopper , Use one of the above methods.
- FIG. 1 is a schematic sectional view of a cylinder and a melt-kneader according to an embodiment of the present invention.
- a method of supplying powder according to the present invention will be specifically described with reference to Fig. 1 in the case of supplying powder to a hopper of a melt-kneader.
- FIG. 1 is a cross-sectional view of a cylinder 70 and a melt-kneading machine 40 to which the control method according to the present embodiment is applied.
- the melt-kneader 40 is mainly composed of a hopper 42, a cylinder 44, a screen _ 4
- the screen 46 is provided in the cylinder 44, and the motor 48 rotates the cylinder.
- the hopper 42 includes a connecting pipe 10, a cone portion 12, a body portion 14, and a top plate.
- the top plate 16 may be omitted.
- the cone portion 12 has a shape in which the inner cross-sectional area is reduced as it goes downward. Examples of the shape of the cone portion 12 are a cone shape and an eccentric cone shape. ⁇ 0 2020/175485 3 ⁇ (: 170? 2020 /007512
- the connecting pipe 10 connects the lower end opening of the cone portion 12 and the cylinder 44 of the melt-kneading machine 40.
- the connecting pipe 10 may be omitted, and the opening at the lower end of the cone portion 12 and the cylinder 44 of the melt kneader 40 may be directly connected.
- the body portion 14 is a tube having a constant internal cross-sectional area in the vertical direction, and is connected to the upper end opening of the cone portion 12.
- the horizontal cross-sectional shape of the body portion 14 is not particularly limited, and may be, for example, a round shape, a polygonal shape such as a square shape, or the like.
- the top plate 16 closes the upper end opening of the body portion 14, and the top plate 16 includes the tubular member 1
- the first eighteenth eighteenth, the second eighteenth eighteenth, and the third thirty eighteenths are provided by seven eighteen, seventeen sevens, and seventeenths, respectively.
- the first opening 1 88 is an opening through which the first powder is supplied through the cylinder 70
- the second opening 1 8 is an opening through which gas can be discharged
- the third opening 1 80 is required. It is an opening to which the second powder is supplied according to the above. If the top plate 16 is not provided, the entire gas outlet of the body 14 except for the cross section of the cylinder into which the powder is charged becomes the gas outlet.
- the material of the hopper is not particularly limited, and steel, stainless steel, or the like can be used.
- the angle/3 between the slope of the cone portion 12 and the horizontal plane may be larger than the repose angle of the powder raw material, and specifically, it is preferably 40 to 90 °.
- the cylinder 70 has openings at an upper end 701: and a lower end 70, respectively.
- the bottom 70 s is connected to the first opening 188 of the hopper 42. Specifically, it is arranged so that at least a part of the lower end 70 of the cylinder 70 is at the same height as the first opening (upper opening) or lower than the first opening (upper opening) 188. Has been done.
- the lower end 70 of the cylinder 70 is entirely at the same height as the first opening (upper opening) 188 or lower than the first opening (upper opening) 188. It is located in.
- all of the lower end 70 of the cylinder 70 is arranged so as to be located below the first opening (upper opening) 18 8, that is, the entire lower end 70 This is a mode in which it is inserted into the hopper 42.
- the upper end 701: of the cylinder 70 is arranged outside the hopper 42.
- the angle between the axis of the cylinder 70 and the horizontal plane ⁇ should be larger than the angle of repose of the powder, for example, 40 to 90 ° ⁇ 0 2020/175485 4 ⁇ (: 170? 2020 /007512
- the gap between the cylinder 70 and the cylinder member 17 is filled with a sealing material or the like so that gas cannot flow.
- the upper end 70 I of the cylinder 70 it is arranged in a known powder conveying device such as a screen feeder, and the first powder is supplied to the upper end 70 I.
- the first powder supplied from the upper end 701 of the cylinder 70 is supplied to the hopper 42 by flowing down the inside of the cylinder 70 and discharging from the lower end 70 jar of the cylinder 70.
- thermoplastic resin powders such as polypropylene, polyethylene, polystyrene and polyvinyl chloride, ceramic powders such as alumina and silica, and metal powders such as aluminum and iron.
- the second powder can be supplied through the third opening 180.
- the second powder used in the production of thermoplastic resin compositions are antioxidants, UV absorbers, pigments, antistatic agents, copper damage inhibitors, flame retardants, neutralizing agents, foaming agents. Additives such as agents, plasticizers, nucleating agents, antifoaming agents, and crosslinking agents.
- the supply of the second powder can be performed simultaneously with the supply of the first powder.
- the particle size of the first powder is small (for example, the average particle size is 300 or less). ⁇ 02020/175485 5 ⁇ (: 170? 2020 /007512
- the particle size of the first powder is large, when the particle size of the second powder is small when the second powder is supplied (for example, the average particle size is 300 or less). The particles are likely to be ejected from the second opening, and the effect of this embodiment is high.
- the supply flow rate of the first powder to be supplied to the hopper 42 flows down the tube 70 and IV! [1 ⁇ 9/3 ], the cylinder 70 at the lower end 70 spoon of the cylinder 70
- the following formula is satisfied when the cross-sectional area of the cross section perpendicular to the axis is 8 3 [ ⁇ ! 2 ].
- the preferred lower limit of (1 ⁇ /1/8 3 ) may be 2, 4, or 10.
- the preferred upper limit of (1 ⁇ /1/8 3 ) is 100, and the more preferred upper limit is 50.
- the shape of the cross section of the cylinder 70 is not particularly limited, and may be substantially circular or polygonal.
- the first powder may jump out when the first powder is small.
- the second powder jumps out from the second opening 18 Is likely to be a problem.
- powder loss due to scattering can be reduced, and ⁇ 0 2020/175485 6 ⁇ (: 170? 2020 /007512
- thermoplastic resin composition having a controlled composition can be obtained.
- powder clogging in the cylinder 70 is also suppressed, and stable operation is possible.
- examples of the second powder include an antioxidant, an ultraviolet absorber, a pigment, an antistatic agent, a copper damage inhibitor, a flame retardant, a neutralizing agent, a foaming agent, Plasticizer, nucleating agent, defoaming agent, cross-linking agent, and thermoplastic resin powder different from the first powder.
- the supply flow rate of the additive is sufficiently smaller than the supply flow rate of the first powder, for example, 1 Therefore, it is less necessary to apply the method according to the present embodiment to the supply of the additive, but the supply flow rate of the second powder is the same as in the production of the polymer blend. In the same case, it can be applied to supply the second powder.
- thermoplastic resin composition In the case of producing a thermoplastic resin composition, the screw 46 is rotated during the powder supply or after the powder supply, and the powder mixture in the hopper 42 is connected to the connecting pipe (powder). It is supplied into the cylinder 44 through the outlet 10 and melt-kneaded with the screw 46 to obtain a thermoplastic resin composition.
- the first powder is supplied from the upper end 7 01 of the PVC cylinder 70 at a constant supply flow rate of 1 ⁇ /1, and from the lower end 70 of the cylinder 70 into the hopper 42. Supplied to.
- the first powder contains polypropylene powder (average particle size 75 0, density 9 50 1 ⁇ 9 (average particle size 3 111 111, dense It was used.
- the clearing agent aggregated particle size 2 ⁇ 0 2020/175485 7 ⁇ (: 170? 2020/007512
- the screen was rotated to melt and knead the powder mixture in the hopper 42 in the cylinder 44 to obtain a thermoplastic resin composition.
- thermoplastic resin composition was analyzed, and the first of all powders fed into the hopper 42 was analyzed.
- the ratio of the mass concentration of the additive in the thermoplastic resin composition to the mass concentration of the two powders was determined as the additive passage rate.
- the presence or absence of powder clogging in the cylinder (flow-down property) was evaluated. The results are shown in Table 1.
- the form of the hopper there is no particular limitation on the form of the hopper, as long as it can store the powder and supply it to the outside.
- the body may not be provided, and the third opening 18 ( 3 may not be provided.
- the target to which the powder is supplied in the cylinder 70 is not limited to the hopper of the melt-kneader, and may be the hopper of another device such as a storage hopper, or a container such as a flexible container instead of the hopper. ..
- the cross-sectional area of the cross section perpendicular to the axis of the cylinder 70 is preferably constant along the axial direction, but the cross-sectional area is not constant along the axial direction. It is possible.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021502278A JP7462608B2 (ja) | 2019-02-26 | 2020-02-25 | 粉体供給方法及び熱可塑性樹脂組成物の製造方法 |
| DE112020000933.5T DE112020000933T5 (de) | 2019-02-26 | 2020-02-25 | Pulverzufuhrverfahren und Herstellungsverfahren für eine thermoplastische Harzzusammensetzung |
| CN202080016168.5A CN113474142A (zh) | 2019-02-26 | 2020-02-25 | 粉体供给方法及热塑性树脂组合物的制造方法 |
| US17/433,589 US12458941B2 (en) | 2019-02-26 | 2020-02-25 | Powder supply method and production method for thermoplastic resin composition |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-033378 | 2019-02-26 | ||
| JP2019033378 | 2019-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020175485A1 true WO2020175485A1 (ja) | 2020-09-03 |
Family
ID=72238578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2020/007512 Ceased WO2020175485A1 (ja) | 2019-02-26 | 2020-02-25 | 粉体供給方法及び熱可塑性樹脂組成物の製造方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12458941B2 (ja) |
| JP (1) | JP7462608B2 (ja) |
| CN (1) | CN113474142A (ja) |
| DE (1) | DE112020000933T5 (ja) |
| WO (1) | WO2020175485A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2021149524A1 (ja) * | 2020-01-20 | 2021-07-29 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020175485A1 (ja) * | 2019-02-26 | 2020-09-03 | 住友化学株式会社 | 粉体供給方法及び熱可塑性樹脂組成物の製造方法 |
| JP7547404B2 (ja) * | 2022-02-14 | 2024-09-09 | プライムアースEvエナジー株式会社 | 二次電池の絶縁保護層用スラリーの製造方法及び二次電池の絶縁保護層用スラリーの製造装置 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08244026A (ja) * | 1995-03-13 | 1996-09-24 | Kobe Steel Ltd | 二軸混練機 |
| JPH10180806A (ja) * | 1996-12-26 | 1998-07-07 | Sumitomo Chem Co Ltd | 繊維と熱可塑性樹脂材料の可塑化装置への供給方法および供給装置 |
| JPH1148252A (ja) * | 1997-08-05 | 1999-02-23 | Kobe Steel Ltd | 密閉式混練機の材料投入装置及び材料投入方法 |
| JP2002321220A (ja) * | 2001-04-24 | 2002-11-05 | Maruyasu:Kk | 原料混合供給ホッパ |
| JP2012076275A (ja) * | 2010-09-30 | 2012-04-19 | Toray Ind Inc | 粉体原料供給装置及び熱可塑性樹脂組成物の製造方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL252926A (ja) * | 1960-06-22 | 1900-01-01 | ||
| US3871629A (en) * | 1972-07-28 | 1975-03-18 | Iwao Hishida | Mouldable synthetic resin colouring material and application apparatus thereof |
| US4092388A (en) * | 1976-11-03 | 1978-05-30 | The Procter & Gamble Company | Apparatus and process for manufacture of variegated soap bars |
| DE3534403A1 (de) * | 1985-09-27 | 1987-04-02 | Neumuenster Masch App | Verfahren und vorrichtung zum zumischen eines feinverteilten farbstoffs zu einem kunststoffgranulat |
| JP4118741B2 (ja) | 2002-08-22 | 2008-07-16 | 旭化成ケミカルズ株式会社 | 新規な樹脂組成物の製造方法及びその樹脂組成物 |
| JP2004322473A (ja) | 2003-04-24 | 2004-11-18 | Tamaki:Kk | プラスチック成形装置及びその顔料供給装置 |
| JP5428266B2 (ja) | 2007-09-28 | 2014-02-26 | 東レ株式会社 | 溶融紡糸方法および溶融紡糸装置 |
| WO2020175485A1 (ja) * | 2019-02-26 | 2020-09-03 | 住友化学株式会社 | 粉体供給方法及び熱可塑性樹脂組成物の製造方法 |
| US12202174B2 (en) * | 2019-02-26 | 2025-01-21 | Sumitomo Chemical Company, Limited | Powder storage apparatus, melt kneader, powder storage method, and production method for thermoplastic resin composition |
-
2020
- 2020-02-25 WO PCT/JP2020/007512 patent/WO2020175485A1/ja not_active Ceased
- 2020-02-25 CN CN202080016168.5A patent/CN113474142A/zh active Pending
- 2020-02-25 DE DE112020000933.5T patent/DE112020000933T5/de active Pending
- 2020-02-25 JP JP2021502278A patent/JP7462608B2/ja active Active
- 2020-02-25 US US17/433,589 patent/US12458941B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08244026A (ja) * | 1995-03-13 | 1996-09-24 | Kobe Steel Ltd | 二軸混練機 |
| JPH10180806A (ja) * | 1996-12-26 | 1998-07-07 | Sumitomo Chem Co Ltd | 繊維と熱可塑性樹脂材料の可塑化装置への供給方法および供給装置 |
| JPH1148252A (ja) * | 1997-08-05 | 1999-02-23 | Kobe Steel Ltd | 密閉式混練機の材料投入装置及び材料投入方法 |
| JP2002321220A (ja) * | 2001-04-24 | 2002-11-05 | Maruyasu:Kk | 原料混合供給ホッパ |
| JP2012076275A (ja) * | 2010-09-30 | 2012-04-19 | Toray Ind Inc | 粉体原料供給装置及び熱可塑性樹脂組成物の製造方法 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2021149524A1 (ja) * | 2020-01-20 | 2021-07-29 | ||
| JP7135222B2 (ja) | 2020-01-20 | 2022-09-12 | 株式会社Adeka | 樹脂組成物の製造方法、および成形品の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112020000933T5 (de) | 2021-11-04 |
| US20220152567A1 (en) | 2022-05-19 |
| US12458941B2 (en) | 2025-11-04 |
| JP7462608B2 (ja) | 2024-04-05 |
| CN113474142A (zh) | 2021-10-01 |
| JPWO2020175485A1 (ja) | 2021-12-23 |
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