WO2015029821A1 - ベント式二軸混練押出装置及び方法 - Google Patents
ベント式二軸混練押出装置及び方法 Download PDFInfo
- Publication number
- WO2015029821A1 WO2015029821A1 PCT/JP2014/071556 JP2014071556W WO2015029821A1 WO 2015029821 A1 WO2015029821 A1 WO 2015029821A1 JP 2014071556 W JP2014071556 W JP 2014071556W WO 2015029821 A1 WO2015029821 A1 WO 2015029821A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinder
- devolatilization
- molten resin
- synthetic rubber
- kneading
- Prior art date
Links
Images
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
- B29B7/34—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
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
-
- 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
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
- B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers
-
- 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
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/94—Liquid charges
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
- B29C44/3446—Feeding the blowing agent
- B29C44/3449—Feeding the blowing agent through the screw
-
- 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
- B29C48/29—Feeding the extrusion material to the extruder in liquid form
-
- 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
- B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/76—Venting, drying means; Degassing means
- B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
- B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
- B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
-
- 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
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
- B29B7/483—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs the other mixing parts being discs perpendicular to the screw axis
-
- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2007/00—Use of natural rubber as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
Definitions
- the present invention relates to a vented twin-screw kneading extrusion apparatus and method, and in particular, a polymer or a synthetic rubber by injecting a devolatilization aid from a devolatilization aid injection nozzle provided in the most advanced segment cylinder of the cylinder.
- the present invention relates to improvement of synthetic resin devolatilization ability and novel improvement for low temperature foaming.
- the treatment target at the time of supplying to the extruder is rubber dissolved in the solvent coming out of the polymerization tank in the previous step, and in the case of treatment with a conventional extruder, The amount of rubber treated per unit time after removal of the rubber was extremely reduced to suppress shearing heat generation in the screw and pelletized.
- a vent type twin screw extruder for devolatilizing the aforementioned solvent the configuration disclosed in Patent Document 1 can be exemplified. That is, what is denoted by reference numeral 1 in FIG.
- the two screws 2 disposed in the cylinder 1 include a first kneading section extending between the vicinity of the upstream side of the first devolatilizing auxiliary agent injection nozzle 7a and the vicinity of the upstream side of the first vent port 4a.
- a second kneading part 6b is also provided between the second pressure inlet 7b and the second vent port 4b.
- a water-containing polymer is supplied to a twin-screw extruder having a dewatering slit on the lower surface of the cylinder, and the polymer is supplied from the supply side in the extruder.
- the extruder does not have a vent on the extrusion side from the position where the dehydration slit is formed, and the extruded polymer is foamed by the vaporized water, and the polymer can be dried uniformly.
- the deterioration temperature does not have a specific definition, but is the temperature at which the rubber in the high temperature and undeformed state before molding deteriorates, and empirically, for each rubber product defined in the UL standard. It is known that the temperature is about 100 ° C. higher than the limit heat resistance temperature.
- the most advanced segment cylinder is provided by providing the most advanced segment cylinder with the devolatilizing agent injection nozzle and the most advanced kneading section. It is to carry out stable devolatilization and foaming in a state where the temperature of the molten resin is lowered.
- vent type twin-screw kneading and extruding apparatus melt-kneads synthetic resin raw materials made of synthetic rubber supplied from a raw material supply port upstream of a cylinder made of a plurality of segment cylinders or two or more polymers including synthetic rubber.
- the devolatilization aid is injected at a rate of 1.0% to 15% with respect to the molten resin, and the back pressure upstream of the die is the devolatilization at the limit heat resistant temperature of the synthetic rubber.
- the synthetic resin material is composed of a mixture of synthetic rubber and an organic solvent, the devolatilizing agent is composed of water, and the die From a die with a pressure adjustment mechanism
- the vent type biaxial kneading extrusion method according to the present invention is composed of synthetic rubber supplied from a raw material supply port upstream of a cylinder composed of a plurality of segment cylinders or two or more kinds of polymers including synthetic rubber.
- Vent type biaxial kneading in which organic volatiles contained in the molten resin obtained by melting and kneading the synthetic resin raw material are discharged to the outside from the vent port of the cylinder and the molten resin is extruded from a die at the tip of the cylinder.
- the devolatilization aid is dispersed in the molten resin in the most advanced segment cylinder from the most advanced devolatilization agent injection nozzle provided in the most advanced segment cylinder consisting of the segment cylinder located at the forefront of the cylinder.
- a plurality of devolatilization aid injection nozzles, a plurality of vent ports, and a plurality of kneading sections are provided between the most advanced segment cylinder of the cylinder and the raw material supply port.
- a volatilization aid any of water, nitrogen and carbon dioxide is used, and the cylinder temperature of the most advanced segment cylinder is a boiling point of the devolatilization aid or higher and less than the temperature.
- the devolatilization aid is injected at a rate of 1.0% to 15% with respect to the molten resin, and the back pressure upstream of the die is the degassing temperature at the limit heat resistance temperature of the synthetic rubber.
- the synthetic resin material is a mixture of synthetic rubber and an organic solvent
- the devolatilization agent is a method comprising water
- the die Dies with pressure adjustment mechanism It is Li Cheng way.
- the bent type biaxial kneading extrusion apparatus and method according to the present invention are configured as described above, the following effects can be obtained. That is, the organic volatile component of the molten resin obtained by melting and kneading a synthetic resin raw material made of a polymer or synthetic rubber supplied from a raw material supply port upstream of a cylinder made of a plurality of segment cylinders is removed from the vent port of the cylinder to the outside.
- the most recent segment cylinder comprising a segment cylinder located at the forefront of the cylinder is provided.
- a plurality of devolatilization auxiliary injection nozzles, a plurality of vent ports, and a plurality of kneading sections are provided between the most advanced segment cylinder of the cylinder and the raw material supply port, so that the most advanced segment is provided.
- Volatilization and low temperature of the molten resin conveyed toward the cylinder can be promoted. Further, by using water, nitrogen, carbon dioxide, or the like as the devolatilization aid, it is possible to achieve devolatilization and low temperature of the molten resin.
- the raw material is set to be equal to or higher than the deterioration temperature even if shear heat is generated when passing through the die. Without decomposing, it is possible to optimize the devolatilization and lowering of temperature of the synthetic rubber having a low decomposition temperature. Further, water used as the devolatilization aid is injected at a rate of 1.0% to 15% with respect to the molten resin, and the back pressure upstream of the die is equal to or higher than the water vapor pressure at the molten resin temperature.
- the low temperature foaming of the molten resin can be performed stably without the devolatilization aid foaming (sizing) in the apparatus before passing through the die.
- the synthetic resin raw material is a mixture of a synthetic rubber and an organic solvent, and the devolatilization aid is water, which is suitable for devolatilization and foam extrusion of the synthetic rubber.
- the die is made of a die with a pressure adjusting mechanism, the foaming state can be adjusted very easily.
- the present invention improves the devolatilization ability of a synthetic resin made of a polymer or synthetic rubber and performs low-temperature firing by injecting a devolatilization aid from a devolatilization aid injection nozzle provided in the most advanced segment cylinder of the cylinder. It is an object of the present invention to provide a bent type biaxial kneading extrusion apparatus and method.
- FIG. 1 what is indicated by reference numeral 1 is a long cylindrical cylinder having first to seventh segment cylinders 1a to 1g from the upstream side toward the downstream side.
- a raw material supply port 3 is formed in the segment cylinder 1a, and a first devolatilizing agent injection nozzle 7a and a first kneading section 6a are provided in the third segment cylinder 1c.
- the fourth segment cylinder 1d is provided with a first vent port 4a
- the fifth segment cylinder 1e is provided with a second devolatilizing agent injection nozzle 7b and a second kneading part 6b.
- the sixth segment cylinder 1f is provided with a second vent port 4b
- the seventh segment cylinder 1g is a state-of-the-art degassing auxiliary injection nozzle that is not provided in the conventional configuration.
- a volatilizer injection nozzle 7c and a state-of-the-art kneading part 6c as a third kneading part are provided, and a die 8 is provided on the outlet side of the state-of-the-art kneading part 6c.
- the synthetic resin raw material 11 supplied from the raw material supply port 3 of the cylinder 1 into the first segment cylinder 1a is conveyed to the third segment cylinder 1c while being melted in the first and second segment cylinders 1a and 1b. .
- the third segment cylinder 1c water, nitrogen, carbon dioxide and the like are injected from the first devolatilizing agent injection nozzle 7a into the molten resin in which the synthetic resin raw material 11 is melted.
- the devolatilization aid is dispersed into the molten resin by the first kneading section 6a, and the molten resin containing the devolatilization aid is the fourth segment cylinder. It is sent to 1d and an organic volatile matter is volatilized outside from the 1st vent port 4a.
- the molten resin devolatilized from the first vent port 4a in the fourth segment cylinder 1d is again the second devolatilization aid in the fifth segment cylinder 1e, similarly to the operation in the third segment cylinder 1c.
- the devolatilization aid from the injection nozzle 7b is injected, it is dispersed in the molten resin by the second kneading section 6b, and is sent to the sixth segment cylinder 1f to the molten resin containing the devolatilization aid.
- the organic volatile component contained therein is devolatilized from the second vent port 4b to the outside.
- the most advanced devolatilization assistant injection which is the third devolatilization agent injection nozzle
- the devolatilization aid is injected from the nozzle 7c, the injected devolatilization aid is dispersed into the molten resin by the most advanced kneading portion 6c comprising the third kneading portion.
- the devolatilization aid is removed by the heat remaining in the melt resin.
- This vaporization causes the molten resin to foam into a known crumb shape.
- the molten resin is cooled by the latent heat of vaporization when the devolatilizing agent is vaporized, and further, the devolatilization interface is remarkably increased by foaming the molten resin by the devolatilizing aid, and the organic residue remaining in the molten resin. Volatile components are devolatilized out of the molten resin and can be extruded at a lower resin temperature.
- the water used as the devolatilization aid is injected at a ratio of 1.0% to 15% with respect to the molten resin, so that both the decrease in the molten resin temperature and the devolatilization performance can be achieved. It becomes possible.
- the back pressure on the upstream side of the die 8 needs to be equal to or higher than the water vapor pressure at the molten resin temperature. is there.
- the die 8 is preferably a well-known die with a pressure adjusting mechanism having a mechanism for adjusting the opening (area) of the nozzle outlet.
- the die with the pressure adjusting mechanism is not shown in the figure, but as is well known, for example, the opening area of the discharge port is changed by changing the overlapping state of the two die plates. As a result, the discharge pressure of the die 8 is changed. It is the structure which can adjust.
- the cylinder temperature of the most advanced segment cylinder 1g is related to the resin temperature extruded from the die 8 and the foaming state, and the result is as follows. It is. Equipment: Vent type twin-screw kneading extrusion equipment manufactured by Nippon Steel Co., Ltd. TEX65 ⁇ II-28AW-V Raw material: Synthetic rubber (EPDM: Limit heat resistance temperature 140 ° C: Degradation temperature 240 ° C) Additive: Organic solvent + water Experimental results
- the temperature of the most advanced segment cylinder 1g is ideally kept as low as possible since the decomposition temperature of the synthetic rubber as the raw material is low.
- the resin temperature at the outlet temperature rose to 210 ° C. due to shear heat generation at the outlet of the die 8 at 100 ° C., but it was confirmed that the synthetic rubber was stably foamed.
- the most advanced segment cylinder is 200 ° C.
- the discharge of the molten resin becomes unstable, and the outlet The resin temperature at the temperature exceeded 250 ° C. and the deterioration temperature.
- the heat of vaporization of the devolatilization aid water
- the treated synthetic rubber is in a well-known crumb state, and the foamed state can be adjusted by the final amount of devolatilization aid added and the pressure at the die 8.
- the use of the die 8 with the pressure adjusting mechanism is facilitated by using the die 8 with the well-known pressure adjusting mechanism having the function of adjusting the opening degree of the nozzle discharge port. Is desirable.
- the gist of the above-described embodiment is as follows. That is, it is contained in a molten resin obtained by melt-kneading a synthetic resin raw material 11 made of synthetic rubber supplied from the raw material supply port 3 upstream of the cylinder 1 made up of a plurality of segment cylinders 1a to 1g or two or more kinds of polymers including synthetic rubber.
- a molten resin obtained by melt-kneading a synthetic resin raw material 11 made of synthetic rubber supplied from the raw material supply port 3 upstream of the cylinder 1 made up of a plurality of segment cylinders 1a to 1g or two or more kinds of polymers including synthetic rubber.
- the vent type biaxial kneading and extruding apparatus in which the organic volatile matter is discharged to the outside from the vent ports 4a and 4b of the cylinder 1 and the molten resin is extruded from the die 8 at the tip of the cylinder 1.
- the boiling point of the devolatilization aid is less than the limit heat-resistant temperature of the synthetic rubber and the method, and the devolatilization aid is 1.0% to 15% with respect to the molten resin.
- the back pressure on the upstream side of the die 8 is a composition and method that is equal to or higher than the vapor pressure of the devolatilization aid at the limit heat resistant temperature of the synthetic rubber, and the synthetic resin raw material is Synthetic rubber and organic solvent mixed Consist of, the de- ⁇ agent is a construction and method consisting of water, also the die 8 has a configuration and a method consisting of the pressure adjusting mechanism with a die.
- the vent type twin-screw kneading and extruding apparatus is provided with a state-of-the-art devolatilization auxiliary injection nozzle and a state-of-the-art kneading section in the most advanced segment cylinder of the cylinder, thereby improving the devolatilization performance of synthetic rubber and the like and low resin temperature Extrusion at is possible.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
前述の溶媒を脱揮するためのベント式二軸押出機としては、特許文献1に開示されている構成を挙げることができる。
すなわち、図2において符号1で示されるものは、複数の第1~第7セグメントシリンダ1a~1gからなるシリンダであり、前記シリンダ1には、上流側から順次間隔を置いて設けられた原料供給口3、第1ベント口4aおよび第2ベント口4bを備え、第1および第2ベント口4a,4bそれぞれの上流側には脱揮助剤を圧入するための第1脱揮助剤注入ノズル7aおよび第2脱揮助剤注入ノズル7bが設けられている。前記シリンダ1内に配設された2本のスクリュ2には、第1脱揮助剤注入ノズル7aの上流側近傍から第1ベント口4aの上流側近傍の間に延在する第1混練部6aが設けられ、これと同様に、第2圧入口7bと第2ベント口4bの間にも第2混練部6bが設けられている。
すなわち、前述の特許文献1のベント式二軸押出機において、特に、劣化温度が低い合成ゴムの脱揮を行う場合、二軸スクリュによるせん断発熱が高く、シリンダの最先端セグメントシリンダにおける溶融樹脂に対する温度冷却手段が設けられていないが故に、脱揮効率と低い樹脂温度での押出しを両立させることは困難であった。
また特許文献2に示されるポリマーの回収方法においては、水分を有するポリマーの水分を除去するために、シリンダの下面に脱水スリットを設けると共に、シリンダの先端から押し出されたポリマーが気化した水分により発泡させているが、近年、要望の多い合成ゴム等のような劣化温度が低い合成樹脂で有機溶剤が混合された樹脂材料の脱揮と、発泡押出しによる乾燥クラムの成形を1台の押出機で両立することは困難であった。
尚、ここでいう劣化温度は特に定まった定義が有るものではないが、成形前の高温未定形状態のゴムが劣化する温度であり、経験的に、UL規格で定義されるそれぞれのゴム製品の限界耐熱温度から100℃程度高いことが知られている。
すなわち、複数のセグメントシリンダからなるシリンダの上流の原料供給口から供給されたポリマー又は合成ゴムからなる合成樹脂原料を溶融混練した溶融樹脂の有機揮発分を、前記シリンダのベント口から外部に除去すると共に、前記シリンダの先端のダイスから前記溶融樹脂を押出すようにしたベント式二軸混練押出装置及び方法において、前記シリンダの最先端に位置するセグメントシリンダからなる最先端セグメントシリンダに設けられた最先端脱揮助剤注入ノズルから脱揮助剤を前記最先端セグメントシリンダ内の溶融樹脂へ分散すると共に最先端混練部によって混練し、前記脱揮助剤で前記溶融樹脂を発泡させて押出すことにより、脱揮性能の向上が達成できると共に、脱揮助剤が気化して発泡する際に、脱揮助剤の気化熱によって分解温度が低い合成ゴム等の合成樹脂が冷却されるため、低い温度で押出しすることができ、従来困難であった脱揮能力と低い温度での押出しを両立できる。
また、前記シリンダの前記最先端セグメントシリンダと前記原料供給口との間には、複数の脱揮助剤注入ノズル及び複数のベント口及び複数の混練部が設けられていることにより、最先端セグメントシリンダに向けて搬送される溶融樹脂の脱揮と低温化を促進することができる。
また、前記脱揮助剤として、水、窒素及び二酸化炭素などが用いられることにより、溶融樹脂の脱揮と低温化を達成できる。
また、前記最先端セグメントシリンダのシリンダ温度を前記脱揮助剤の沸点以上、前記合成ゴムの限界耐熱温度未満とすることにより、ダイス通過時のせん断発熱があっても、原料を劣化温度以上とすることなく、分解温度が低い合成ゴム等の脱揮と低温化を最適化できる。
また、前記脱揮助剤として用いられる水は、前記溶融樹脂に対して1.0%から15%の割合で注入し、前記ダイスの上流側の背圧は溶融樹脂温度での水蒸気圧以上であることにより、ダイス通過前に脱揮助剤が装置内で発泡(サイジング)することなく溶融樹脂の低温発泡を安定して行うことができる。
また、前記合成樹脂原料は、合成ゴムと有機溶剤を混合したものからなり、前記脱揮助剤は水よりなることにより、合成ゴムの脱揮及び発泡押出しに好適である。
また、前記ダイスは、圧力調整機構付きダイスよりなることにより、発泡状態の調整が極めて容易となる。
尚、従来例と同一又は同等部分には、同一符号を付して説明する。
図1において、符号1で示されるものは、上流側から下流側へ向けて第1~第7セグメントシリンダ1a~1gを有する長尺状の筒状をなすシリンダであり、このシリンダ1の第1セグメントシリンダ1aには原料供給口3が形成され、前記第3セグメントシリンダ1cには第1脱揮助剤注入ノズル7a及び第1混練部6aが設けられている。
前記第6セグメントシリンダ1fには、第2ベント口4bが設けられており、前記第7セグメントシリンダ1gには、従来構成には設けられていない第3脱揮助剤注入ノズルとしての最先端脱揮助剤注入ノズル7c及び第3混練部としての最先端混練部6cが設けられていると共に、前記最先端混練部6cの出口側にはダイス8が設けられている。
前記シリンダ1の原料供給口3から第1セグメントシリンダ1a内に供給された合成樹脂原料11は、前記第1、第2セグメントシリンダ1a,1b内で溶融されつつ第3セグメントシリンダ1cに搬送される。
この脱揮助剤が気化する時の蒸発潜熱によって溶融樹脂は冷却され、さらに、前記脱揮助剤によって溶融樹脂が発泡することで脱揮界面が著しく増大すると共に、溶融樹脂内に残留する有機揮発分は溶融樹脂外へ脱揮され、さらに低い樹脂温度での押出が可能となる。
装置:株式会社日本製鋼所製のベント式二軸混練押出装置 TEX65αII-28AW-V
原料:合成ゴム(EPDM:限界耐熱温度140℃:劣化温度240℃)
添加剤:有機溶剤+水
実験結果
一方、最先端セグメントシリンダを200℃とした比較例では、ダイス上流のシリンダ内部で水の蒸発が起きたことによりサージングが発生したことにより溶融樹脂の吐出が不安定になったことに加え、出口温度での樹脂温度は250℃と劣化温度を超えてしまった。
すなわち、複数のセグメントシリンダ1a~1gからなるシリンダ1の上流の原料供給口3から供給された合成ゴムあるいは合成ゴムを含む2種以上のポリマーからなる合成樹脂原料11を溶融混練した溶融樹脂に含まれる有機揮発分を、前記シリンダ1のベント口4a、4bから外部に排出すると共に、前記シリンダ1の先端のダイス8から前記溶融樹脂を押出すようにしたベント式二軸混練押出装置において、前記シリンダ1の最先端に位置するセグメントシリンダ1gからなる最先端セグメントシリンダに設けられた最先端脱揮助剤注入ノズル7cから脱揮助剤を前記最先端セグメントシリンダ1g内の溶融樹脂へ分散すると共に最先端混練部6cによって混練し、前記脱揮助剤で前記溶融樹脂を発泡させて押出す構成と方法であり、また、前記シリンダ1の前記最先端セグメントシリンダ1gと前記原料供給口3との間には、複数の脱揮助剤注入ノズル7a、7b及び複数のベント口4a、4b及び複数の混練部6a、6bが設けられている構成と方法であり、また、前記脱揮助剤として、水、窒素及び二酸化炭素の何れかが用いられる構成と方法であり、また、前記最先端セグメントシリンダ1gのシリンダ温度を前記脱揮助剤の沸点以上、かつ、前記合成ゴムの限界耐熱温度未満とする構成と方法であり、また、前記脱揮助剤は、前記溶融樹脂に対して1.0%から15%の割合で注入し、前記ダイス8の上流側の背圧は前記合成ゴムの限界耐熱温度での前記脱揮助剤の蒸気圧以上である構成と方法であり、また、前記合成樹脂原料は、合成ゴムと有機溶剤を混合したものからなり、前記脱揮助剤は水よりなる構成と方法であり、また、前記ダイス8は、圧力調整機構付きダイスよりなる構成と方法である。
Claims (14)
- 複数のセグメントシリンダ(1a~1g)からなるシリンダ(1)の上流の原料供給口(3)から供給された合成ゴム又は合成ゴムを含む2種以上のポリマーからなる合成樹脂原料(11)を溶融混練した溶融樹脂に含まれる有機揮発分を、前記シリンダ(1)のベント口(4a,4b)から外部に排出すると共に、前記シリンダ(1)の先端のダイス(8)から前記溶融樹脂を押出すようにしたベント式二軸混練押出装置において、
前記シリンダ(1)の最先端に位置するセグメントシリンダ(1g)からなる最先端セグメントシリンダに設けられた最先端脱揮助剤注入ノズル(7c)から脱揮助剤を前記最先端セグメントシリンダ(1g)内の溶融樹脂へ分散すると共に最先端混練部(6c)によって混練し、前記脱揮助剤で前記溶融樹脂を発泡させて押出すことを特徴とするベント式二軸混練押出装置。 - 前記シリンダ(1)の前記最先端セグメントシリンダ(1g)と前記原料供給口(3)との間には、複数の脱揮助剤注入ノズル(7a,7b)及び複数のベント口(4a,4b)及び複数の混練部(6a,6b)が設けられていることを特徴とする請求項1記載のベント式二軸混練押出装置。
- 前記脱揮助剤として、水、窒素及び二酸化炭素の何れかが用いられることを特徴とする請求項1又は2記載のベント式二軸混練押出装置。
- 前記最先端セグメントシリンダ(1g)のシリンダ温度を前記脱揮助剤の沸点以上、かつ、前記合成ゴムの限界耐熱温度未満とすることを特徴とする請求項1ないし3の何れかに記載のベント式二軸混練押出装置。
- 前記脱揮助剤は、前記溶融樹脂に対して1.0%から15%の割合で注入し、前記ダイス(8)の上流側の背圧は前記合成ゴムの限界耐熱温度での前記脱揮助剤の蒸気圧以上であることを特徴とする請求項1ないし4の何れかに記載のベント式二軸混練押出装置。
- 前記合成樹脂原料は、合成ゴムと有機溶剤を混合したものからなり、前記脱揮助剤は水よりなることを特徴とする請求項1,2,4,5の何れかに記載のベント式二軸混練押出装置。
- 前記ダイス(8)は、圧力調整機構付きダイスよりなることを特徴とする請求項1ないし6の何れかに記載のベント式二軸混練押出装置。
- 複数のセグメントシリンダ(1a~1g)からなるシリンダ(1)の上流の原料供給口(3)から供給された合成ゴムあるいは合成ゴムを含む2種以上のポリマーからなる合成樹脂原料(11)を溶融混練した溶融樹脂の有機揮発分を、前記シリンダ(1)のベント口(4a,4b)から外部に排出すると共に、前記シリンダ(1)の先端のダイス(8)から前記溶融樹脂を押出すようにしたベント式二軸混練押出方法において、
前記シリンダ(1)の最先端に位置するセグメントシリンダ(1g)からなる最先端セグメントシリンダに設けられた最先端脱揮助剤注入ノズル(7c)から脱揮助剤を前記最先端セグメントシリンダ(1g)内の溶融樹脂へ分散すると共に最先端混練部(6c)によって混練し、前記脱揮助剤で前記溶融樹脂を発泡させて押出すことを特徴とするベント式二軸混練押出方法。 - 前記シリンダ(1)の前記最先端セグメントシリンダ(1g)と前記原料供給口(3)との間には、複数の脱揮助剤注入ノズル(7a,7b)及び複数のベント口(4a,4b)及び複数の混練部(6a,6b)が設けられていることを特徴とする請求項8記載のベント式二軸混練押出方法。
- 前記脱揮助剤として、水、窒素及び二酸化炭素の何れかが用いられることを特徴とする請求項8又は9記載のベント式二軸混練押出方法。
- 前記最先端セグメントシリンダ(1g) のシリンダ温度を前記脱揮助剤の沸点以上、かつ、前記合成ゴムの限界耐熱温度未満とすることを特徴とする請求項8ないし10の何れかに記載のベント式二軸混練押出方法。
- 前記脱揮助剤は、前記溶融樹脂に対して1.0%から10%の割合で注入し、前記ダイス(8)の上流側の背圧は前記合成ゴムの限界耐熱温度での前記脱揮助剤の蒸気圧以上であることを特徴とする請求項8ないし10の何れかに記載のベント式二軸混練押出方法。
- 前記合成樹脂原料は、合成ゴムと有機溶剤を混合したものからなり、前記脱揮助剤は水よりなることを特徴とする請求項8,9,11,12の何れかに記載のベント式二軸混練押出方法。
- 前記ダイス(8)は、圧力調整機構付きダイスよりなることを特徴とする請求項8ないし13の何れかに記載のベント式二軸混練押出方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/902,942 US10625459B2 (en) | 2013-08-27 | 2014-08-18 | Vented twin-screw kneading extrusion apparatus and extrusion method |
KR1020167001857A KR102236669B1 (ko) | 2013-08-27 | 2014-08-18 | 벤트식 2축 혼련압출장치 및 방법 |
CN201480042082.4A CN105408077B (zh) | 2013-08-27 | 2014-08-18 | 排气式双螺杆混炼挤出装置及方法 |
RU2015156803A RU2636080C2 (ru) | 2013-08-27 | 2014-08-18 | Вентилируемая двухшнековая перемешивающая экструзионная машина и способ экструзии |
EP14839376.2A EP3006177B1 (en) | 2013-08-27 | 2014-08-18 | Vented twin-screw kneading extrusion method |
US16/809,933 US11007700B2 (en) | 2013-08-27 | 2020-03-05 | Vented twin-screw kneading extrusion apparatus and extrusion method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-175245 | 2013-08-27 | ||
JP2013175245A JP5619239B1 (ja) | 2013-08-27 | 2013-08-27 | ベント式二軸混練押出装置及び方法 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/902,942 A-371-Of-International US10625459B2 (en) | 2013-08-27 | 2014-08-18 | Vented twin-screw kneading extrusion apparatus and extrusion method |
US16/809,933 Division US11007700B2 (en) | 2013-08-27 | 2020-03-05 | Vented twin-screw kneading extrusion apparatus and extrusion method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015029821A1 true WO2015029821A1 (ja) | 2015-03-05 |
Family
ID=51904324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/071556 WO2015029821A1 (ja) | 2013-08-27 | 2014-08-18 | ベント式二軸混練押出装置及び方法 |
Country Status (7)
Country | Link |
---|---|
US (2) | US10625459B2 (ja) |
EP (1) | EP3006177B1 (ja) |
JP (1) | JP5619239B1 (ja) |
KR (1) | KR102236669B1 (ja) |
CN (1) | CN105408077B (ja) |
RU (1) | RU2636080C2 (ja) |
WO (1) | WO2015029821A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015170602A1 (ja) * | 2014-05-09 | 2015-11-12 | 株式会社カネカ | スチレン系樹脂押出発泡体の製造方法 |
JP6867125B2 (ja) * | 2016-08-25 | 2021-04-28 | 日本製紙クレシア株式会社 | 水分付随廃プラスチックのペレット成形装置 |
CN109693333B (zh) * | 2017-10-24 | 2021-09-07 | 欧特捷实业股份有限公司 | 混合方法及其机构 |
GB201801415D0 (en) * | 2018-01-29 | 2018-03-14 | Univ Limerick | Method and apparatus |
CN109049398B (zh) * | 2018-07-23 | 2021-02-12 | 合肥市丽红塑胶材料有限公司 | 一种新型塑料voc脱除装置 |
CN109501205A (zh) * | 2018-12-07 | 2019-03-22 | 大连橡胶塑料机械有限公司 | 可在线调节的排气挤出机 |
TWI756809B (zh) * | 2020-09-02 | 2022-03-01 | 歐特捷實業股份有限公司 | 混合方法及其系統 |
CN115122527A (zh) * | 2022-06-09 | 2022-09-30 | 万华化学集团股份有限公司 | 一种聚烯烃造粒工艺 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08207118A (ja) | 1995-02-06 | 1996-08-13 | Japan Steel Works Ltd:The | 熱可塑性樹脂より揮発性物質を除去する方法およびベント式二軸押出機 |
JP2000309019A (ja) * | 1999-04-27 | 2000-11-07 | Japan Steel Works Ltd:The | ポリマー樹脂原料の脱揮処理方法および脱揮混練押出機 |
JP2000310482A (ja) | 1999-04-27 | 2000-11-07 | Jsr Corp | ポリマーの回収方法 |
JP2002254427A (ja) * | 2000-12-20 | 2002-09-11 | General Electric Co <Ge> | 液体シリコーンゴム組成物の連続製造法 |
JP2002326273A (ja) * | 2001-04-27 | 2002-11-12 | Kobe Steel Ltd | 溶融状樹脂の脱気方法及び脱気装置 |
JP2006001252A (ja) * | 2004-06-21 | 2006-01-05 | Kobe Steel Ltd | 押出機 |
JP2013032006A (ja) * | 2011-07-05 | 2013-02-14 | Sumitomo Chemical Co Ltd | 脱揮されたポリオレフィンの製造方法及び成形品 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001179808A (ja) | 1999-12-22 | 2001-07-03 | Toshiba Mach Co Ltd | 発泡物連続成形方法およびその装置 |
US6884380B2 (en) * | 2000-06-14 | 2005-04-26 | Asahi Kasei Kabushiki Kaisha | Method of injection molding of thermoplastic resin |
JP4050644B2 (ja) * | 2003-03-27 | 2008-02-20 | 株式会社日本製鋼所 | インラインスクリュ式可塑化射出装置 |
KR20070015358A (ko) * | 2003-08-28 | 2007-02-02 | 니폰 제온 가부시키가이샤 | 중합체 제조 장치 |
JP2005112869A (ja) * | 2003-10-02 | 2005-04-28 | Mitsubishi Rayon Co Ltd | 脱揮押出装置、並びに、それを用いた(メタ)アクリル系重合体の製造装置及び(メタ)アクリル系重合体の製造方法 |
DE102007045155A1 (de) * | 2007-09-20 | 2009-04-02 | Evonik Röhm Gmbh | Anordnung des Antriebs bei einem Entgasungsextruder |
WO2009051281A1 (en) | 2007-10-19 | 2009-04-23 | Tonen Chemical Corporation | Extruder having dual mixing stages and process for preparing a mixture of polymer and diluent |
EP2255859A1 (de) | 2009-05-30 | 2010-12-01 | Bayer MaterialScience AG | Vorrichtung und Verfahren zum Entgasen von lösungshaltigen Polycarbonatlösungen |
EP2256146A1 (de) | 2009-05-30 | 2010-12-01 | Bayer MaterialScience AG | Polycarbonate mit extrem hoher Reinheit und guter Eigenfarbe und thermischer Beständigkeit sowie eine Vorrichtung und ein Verfahren zu ihrer Herstellung |
EP2255860A1 (de) | 2009-05-30 | 2010-12-01 | Bayer MaterialScience AG | Vorrichtung und Verfahren zum Entgasen von lösungsmittelhaltigen Polycarbonatlösungen |
EP2255947A1 (de) * | 2009-05-30 | 2010-12-01 | Bayer MaterialScience AG | Vorrichtung und Verfahren zum Mischen von Polymerschmelzen mit Additiven |
JP4436435B1 (ja) * | 2009-07-02 | 2010-03-24 | Wpcコーポレーション株式会社 | 押出発泡成形用の成形材料及びその製造方法,並びに前記成形材料を使用して製造した木質発泡成形体,前記木質発泡成形体の製造方法並びに製造装置 |
JP5393411B2 (ja) * | 2009-11-13 | 2014-01-22 | 三菱エンジニアリングプラスチックス株式会社 | ポリフェニレンエーテル系樹脂組成物成形体の製造方法 |
EP2381503B1 (en) * | 2010-04-23 | 2013-04-17 | Polyphotonix Limited | Method for manufacturing material for use in manufacturing electroluminescent organic semiconductor devices |
-
2013
- 2013-08-27 JP JP2013175245A patent/JP5619239B1/ja active Active
-
2014
- 2014-08-18 WO PCT/JP2014/071556 patent/WO2015029821A1/ja active Application Filing
- 2014-08-18 EP EP14839376.2A patent/EP3006177B1/en active Active
- 2014-08-18 KR KR1020167001857A patent/KR102236669B1/ko active IP Right Grant
- 2014-08-18 US US14/902,942 patent/US10625459B2/en active Active
- 2014-08-18 RU RU2015156803A patent/RU2636080C2/ru active
- 2014-08-18 CN CN201480042082.4A patent/CN105408077B/zh active Active
-
2020
- 2020-03-05 US US16/809,933 patent/US11007700B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08207118A (ja) | 1995-02-06 | 1996-08-13 | Japan Steel Works Ltd:The | 熱可塑性樹脂より揮発性物質を除去する方法およびベント式二軸押出機 |
JP2000309019A (ja) * | 1999-04-27 | 2000-11-07 | Japan Steel Works Ltd:The | ポリマー樹脂原料の脱揮処理方法および脱揮混練押出機 |
JP2000310482A (ja) | 1999-04-27 | 2000-11-07 | Jsr Corp | ポリマーの回収方法 |
JP2002254427A (ja) * | 2000-12-20 | 2002-09-11 | General Electric Co <Ge> | 液体シリコーンゴム組成物の連続製造法 |
JP2002326273A (ja) * | 2001-04-27 | 2002-11-12 | Kobe Steel Ltd | 溶融状樹脂の脱気方法及び脱気装置 |
JP2006001252A (ja) * | 2004-06-21 | 2006-01-05 | Kobe Steel Ltd | 押出機 |
JP2013032006A (ja) * | 2011-07-05 | 2013-02-14 | Sumitomo Chemical Co Ltd | 脱揮されたポリオレフィンの製造方法及び成形品 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3006177A4 |
Also Published As
Publication number | Publication date |
---|---|
JP5619239B1 (ja) | 2014-11-05 |
US10625459B2 (en) | 2020-04-21 |
RU2636080C2 (ru) | 2017-11-20 |
KR102236669B1 (ko) | 2021-04-06 |
CN105408077B (zh) | 2017-05-17 |
EP3006177B1 (en) | 2019-02-20 |
EP3006177A1 (en) | 2016-04-13 |
US11007700B2 (en) | 2021-05-18 |
US20160151954A1 (en) | 2016-06-02 |
RU2015156803A (ru) | 2017-09-29 |
KR20160048059A (ko) | 2016-05-03 |
CN105408077A (zh) | 2016-03-16 |
US20200215738A1 (en) | 2020-07-09 |
EP3006177A4 (en) | 2016-12-14 |
JP2015044295A (ja) | 2015-03-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5619239B1 (ja) | ベント式二軸混練押出装置及び方法 | |
US8177412B2 (en) | Kneading apparatus and method for kneading rubber-based composition using the same | |
US3742093A (en) | Method of separating an insoluble liquid from polymer composition | |
EP2760658B1 (de) | Vorrichtung und verfahren zur entfernung von flüchtigen bestandteilen aus polymerhaltigen medien | |
US4065532A (en) | Process for the admixture of additives into plastics with simultaneous removal of volatile constituents | |
KR101544230B1 (ko) | 중합체 물질을 탈기시키기 위한 탈기 압출기, 및 탈기 압출기를 사용하여 중합체, 용매 및/또는 단량체로 이루어진 시럽을 탈기시키는 방법 | |
EP2328937B1 (en) | Process for the production of water and solvent-free synthetic rubber | |
EP2981404B1 (de) | Verfahren zur entfernung von flüchtigen bestandteilen aus elastomerhaltigen medien und entgasungsvorrichtung dafür | |
EP2203290B1 (de) | Verfahren und vorrichtung zur herstellung eines polymergranulats | |
KR102647116B1 (ko) | 과립형 팽창성 중합체의 연속 대량 생산을 위한 플랜트에서 과도현상을 관리하기 위한 회로 및 방법 | |
KR100293379B1 (ko) | 중합체조성물로부터의휘발성물질의제거방법 | |
JP5855083B2 (ja) | 水および溶媒を含まないポリマーの製造方法 | |
JP2005022245A (ja) | ポリマーの超臨界処理装置 | |
JP2010194794A (ja) | 回収ポリエステルから成形品を製造する方法 | |
DE2346213A1 (de) | Verfahren zum trocknen von extrudierbarem polymermaterial und vorrichtung zur durchfuehrung des verfahrens | |
JP4180125B2 (ja) | 重合反応生成物の精製方法 | |
JP4224691B2 (ja) | 重合体の回収方法及び回収装置 | |
CA2621776A1 (en) | A method to increase production rate of a continuous mixer or extruder | |
JP2001079831A (ja) | 二軸スクリュ押出機 | |
JPH10671A (ja) | 難成形樹脂成形体の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201480042082.4 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14839376 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14902942 Country of ref document: US Ref document number: 2014839376 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20167001857 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2015156803 Country of ref document: RU Kind code of ref document: A |