TW272198B - - Google Patents

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Publication number
TW272198B
TW272198B TW084100446A TW84100446A TW272198B TW 272198 B TW272198 B TW 272198B TW 084100446 A TW084100446 A TW 084100446A TW 84100446 A TW84100446 A TW 84100446A TW 272198 B TW272198 B TW 272198B
Authority
TW
Taiwan
Prior art keywords
rubber
water
cooperative
patent application
dehydration
Prior art date
Application number
TW084100446A
Other languages
English (en)
Inventor
Gausepohl Hermann
Koch Jurgen
Original Assignee
Basf Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Basf Ag filed Critical Basf Ag
Application granted granted Critical
Publication of TW272198B publication Critical patent/TW272198B/zh

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Classifications

    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/832—Heating
    • 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
    • B29B7/002—Methods
    • B29B7/007—Methods for continuous mixing
    • 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
    • B29B7/487—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 with consecutive casings or screws, e.g. for feeding, discharging, mixing
    • 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
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
    • 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
    • B29B7/842—Removing liquids in liquid form
    • 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
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/405—Intermeshing co-rotating screws
    • 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
    • B29C48/505—Screws
    • B29C48/55—Screws having reverse-feeding elements
    • 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
    • B29C48/761—Venting, drying means; Degassing means the vented material being 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
    • B29C48/36—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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Description

經濟部十央樣準局員工消費合作社印製 272198 「 第84100446號專利申請案 A7 中文説明書修正頁(84年12月）B7 '* 五、發明説明（） 本發明係關一種實質機械脫水水濕橡膠之方法產生有至 少5 0 〇/◦橡膠含量之緊密材料。 橡膠特別例如塑膠衝撃緩和所須的接枝橡膠，常由乳化 聚合作用製備；所得膠乳經添加電解質凝聚，水洗後遠心 分離並再脫水。此項接枝橡膠舉例如丁二烯- g- SAN或丙 烯酸丁酯- g- SAN，或在許多階段内根據單體丁二烯、苯 乙烯、丙烯酸丁酯、甲基丙烯酸甲酯或丙烯□等合成的橡 膠。供其他期望用途之橡膠亦常用此法獲得。 通常遠心分離後仍含高達5 0 Q/q水的濕材料經乾燥後以 預期方式摻入熱塑性熔化物，遂處理得最後產物。在此情 況中橡膠處理成粉狀，由於粉屑含量易遭遇自然發火。 根據D E - A - 2 0 3 7 7 8 4内説明的建議遠心分離後接枝濕 橡膠能引進帶水蒸發作用的S A N熔化物而得含多達6 0 Q/o之 熱塑成分。此法需要相當大量的電能，隨蒸發水夾帶橡膠 粒子與協合餘留物，必須作特定廢物處置。務必注意成蒸 汽狀提出並經橡膠組份汙染的水，連同凝縮所須的冷卻水 作必要處理之廢水。 而且擠壓機内可出現之輔助劑析積可能染汙產品。 U S專利5，151,026與5,232,649頗有關係。 本發明之目的在提供一種寅質上避免上述缺點的方法。 就此而論可先敘述如次： 自一般橡膠技藝已知潮濕或者多少部分脫水的橡膠能靠 在壓機包括螺旋壓機內機械地榨出漿液而得。常用有濾桶 之裝置執行，水能以通過篩網之相同方式經其流去。但此 本紙張尺度適用f阐國家標準（CNS)A4規格（210 X 297公釐） 83.3J.〇,〇〇〇 - -----------裝I— ——訂 丨丨-'丨系 (請先閲讀背面之注意事項再填寫本頁) 峨198 at B7 -----------------— 五、發明説明（2 ) 等濾桶易致堵塞。如此所得橡膠仍有某些殘留水份，然後 壓榨成包或成顆粒。 自含水環境中獲得熱塑物亦導生同樣溶液。 例如日本專利刊物86/053 362敘述一種自未經乾燥的聚合 物或自漿液中獲得聚合物之方法。一實例係一種有約4 0 〇/〇固體含量及粒子大小0.3 trnn的聚S A N漿在設備二濾桶與3 脫揮發孔的雙蝸桿擠壓機內脫水。脫揮發作用在減壓下達 成。 日本專利刊物2 286 208説明一種方法其中用雙蝸桿擠壓_ 機脫除熱塑型模塑材料之水份。此處亦設置濾桶供脫水及 * 許多脫揮發孔供蒸發水。 日本專利刊物84/027 776敘述一種在擠壓機內脫水反塑化 ABS聚合物之方法，水在與輸送方向相反的方向連帶其後 兩段脫揮發作用中脫除，或在另一具體例內用一特殊螺旋 提供多重壓縮。此項螺旋設計僅能用作昂貴的特製產品。 歐洲專利刊物〇 534 235説明在熱塑物軟化點上摻合經機， 械部分脫水的橡膠於熱塑物內製備朝化的熱塑物，橡膠摻- 人擠壓機前部分脫水，其餘殘留水於摻合期間經脫揮發裝， 經濟部中央標準局員工消費合作社印策 (請先閲讀背面之注意事項再填寫本頁) 置在混人點之前或後排列者除去。 此法同樣有缺點即仍須蒸發大量的水，且須二項機器即 一主擠壓機與一副擠壓機，同樣得到僅有限用途之濃縮物 〇 ，茲已發現達到目的，水濕的橡膠能在單一雙蝸捍連續捏 / 和機及有商品組份的複台機內完成寅質地機械脫水，若用 本紙張尺度適用中國國家榡準（CNS ) A4規格（210X297公釐） 272198 第84100446號專利申請案 A7 I 4 · 中文説明書修正頁(84年12月）B7 ueAu±： 五、發明説明（） ~有相同方向轉動的雙螺紋或較佳三螺紋螺旋之機器時得 一緊密的外部乾燥橡膠材料（緊密材料）供給在輸送方向 接連有至少二積留帶與二協合的脫水孔之擠壓機的沉澱水 濕橡膠進料部分，其中如有必要並各設一阻滯螺螺旋，其 後至少一捏和區，然後至少一脫揮發區及最後一排放區， 需要時可用一模唇封閉。 新穎佈置可藉助產業擠壓機組件組集，能得各種切割螺 旋部分與聯合筒腔部分（節段），需要時能正確適應特定 脫水問題。 一種經實質機械脫水的材料不另加例如流動改良劑或熱 塑型材料而塑化及轉變成圓柱或小球狀緊密材料（顆粒） 能運用而不產生塵+屑者，自各型水濕橡膠以此方式得到。 經濟部中央橾準局員工消費合作社印髮 本新穎方法適合製造多種預期用途之橡膠顆粒；特別計 劃供製造橡膠原料如易碎塑膠之耐衝擊改良用，例如以丁 二烯共聚物、丁二烯/丙烯腈共聚物或丁二烯/苯乙烯共聚 物或接枝共聚物為基礎之橡膠及以生成彈料型聚合物的， 丙烯酸酯的丙烯酸乙酯、丙烯酸丁酯或丙烯酸乙基己酯等 為基礎之橡膠。適宜單體亦可係上述單體之取代產物。一 般適用未取代的或經取代的1,3-二烯或丙烯酸正烷酯之聚 合物及其共聚物或與乙烯基芳屬單體如苯乙烯或其他生成 硬聚合物之單體如丙烯腈或甲基丙烯酸甲酯之接枝共聚物。 製程之實用説明（見圖）^ 用一種三螺紋雙蝸桿擠壓機（Werner & Pfleiderer之ZSK 53 型），其中含以下筒腔段： 一 6 - 83.3.10,00° (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS:,.M規格（210 X 297公货） 27^138 A7 -— _ B7__ 五、發明説明（4 ) 一如有需要，—不加熱的筒段:（1 )頂上設一孔以脫除閉 附空氣： -筒段（2)、加料孔、不加熱，設有單蝸桿（BSB 45 )計量 ρχ m ， -筒段（3)不加熱，頂上有脫水孔，設有阻滯螺絲（3a); -筒段（4) ’不加熱，無孔； _筒段（5) ’不加熱，頂上有脫水孔，設有阻滯螺絲（5a); -第（6)段，封閉； -脫揮發段（7)(加熱）供大氣脫揮發，加寬筒腔如由 5 3 至 5 7 _ ; -輸送段（8)，封閉，加熱： -模唇（9)供材料成形排出。 上述筒段相當於螺旋分段（見圖），可説明如下： 供料與輸送段丨10；) 第一擠壓區（11；) 第二擠壓區（12) , ， 捏和區（13) 脫揮發及排放段（14丨 經濟部中央標準局員工消費合作社印製 1. win II —Λ ^ nn m nn ^^^1--* -^1-^-?* (請先閱讀背面之注意事項再填寫本頁) 實例 輸送濕橡膠如一雙蝸捍擠機之進料孔，其中蝸桿同方向 旋轉，各係三螺紋，入口區（第丨0段；見圖）内有右旋 %動。由蝓送方向中上游一適當螺旋幾何形或孔可能供任 何關附的空氣逸出。橡膠在本案例內一左旋雙螺紋輸向積 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 272198 第84100446號專利申請案 A7 中文説明書條正頁(84年12屋)B7 五、發明説明（） 留區以輸送方向下游。於是增強壓力壓出橡膠（第丨1段 )內包封的水。此水能於大氣壓下經筒內脫水孔流去。例 如有3 5至8 0 〇/〇之附著水自此脫除。離開擠壓機之水約2 5 °C - 9 0 °C。 部分脫水的橡膠自作障礙物用之積留區（1丨）向第二積留 區（12)送去，在此完成進一歩脫水，再脫除達2 5 〇/〇之總水 量。摩擦之結果溫度上升至約丨⑻°C。局部脫水的橡膠在 此處常仍呈粉狀。第二積留區由一捏和區（12)後繼。在此 引進蒸發餘留水用及塑化必要的能量。隨後經一大氣脫揮 發階段，其中進一步逸出殘留量水，本案例中為蒸汽（丨4) 。少量水與相對大脫揮發孔（7)保證無粒子夾帶或者夾帶 的粒子立即落回。塑化的及壓實的橡膠經模板（9)排出， 在此係130-180 °C。殘留水份含量為自7至0 . 5 〇/〇。 新穎方法作多種材料研究。 A- 1 經濟^Tt央ft準居員工消費合作社印製 聚丁二烯橡膠根據DE-A-24 27 960或EP-A-258 714 (其中組份 A )以S A N接枝’添加一種電解質使沉澱並預先脫水至2 7 到3 3 〇/〇重量比水之殘留水分含量。 A- 2 聚丙烯酸丁酯橡膠根據DB-A-12 60 135 (組份A )以S A N接 枝，加電解質使沉澱並預先脫水到2 7至3 3 〇/〇水之殘留水 份含量。 83.3.10,000 (請先閲讀背面之注意事項再塡寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（2l〇 X 257公釐 經濟部中央橾準局員工消費合作社印製 272198 A7 ____B7 五、發明説明（6 ) 聚丙烯酸丁酯橡膠根據DB-A-31 49 358 (組份A + B )以 S A N接枝，加電解質使沉澱並預先脫水到3 〇至3 8吮水之 殘留水份含量。 將接枝橡膠材料供料於前述擠壓機。測量第一及第二擠 壓區中排出水與排出橡膠，顆粒的殘留水份含量，與排出 的壓緊材料及擠出的水之溫度。算出蒸發的水量。全部用 重量法測定量。 實例 1 2 3 橡膠成份 A-1 A-2 A-3 總水份量（kg/h) 100 110 110 速度/rpm 280 250 200 起始水份含量(o/q重量比） 29.7 29.9 34.3 第一次脫水排放 水(％重量比） 12.9 16.9 22.9 溫度(°C) 28 26 39.4 橡膠(％重量比） 3,3 4.6 4.4 第二次脫水排放 水(吮重量比） 6.7 3.8 0.3 溫度fc) 87 78 84 核膠(。/〇重量比） 0.3 0.1 0 脫揮發作用 . 、 蒸汽(％重量比） 7,7 7.9 8.6 擠出物水份含量 水(G/ο重量比） 2.4 1.3 2.9 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） I IIn^各 n訂 (請先閲讀背面之注意事項再填寫本頁)

Claims (1)

  1. 第84100446號專利申請案
    中請專利範圍 1.—種獲得寅質乾材料之方法，將 備的水濕橡膠經機械脫水，在一 至少5 0 〇/〇橡膠含量之緊密材料 料至一雙蝸桿擠壓機的進料部分 有連續至少二積留區與二協同脫水孔及至少一捏和區 —脫揮發區與最後一排放區，分 處排放，其中脫水孔各設有一阻 封閉。 根據申請專利範圍第1項之方法 由乳化聚合與沉澱法製 雙蝸桿揑和機內產生有 ，其中預脫水的橡膠供 ，擠壓機在輸送方向具 離的水成液狀於脫水孔 滯螺絲而排放區由模唇 ，其中以二烯聚合物或 丙烯酸酯聚合物，或以其等一接枝聚合物為基礎的橡膠 膠乳經脫水。 II (.裝— i { ， (請先Μ讀背面之注意事項再填寫本頁) 行濟部中央螵準局負工消f合作社印製 木錄尺度_中(C'NS ) 格（2i〇x297公爱 >
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