TW294730B - - Google Patents
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- Publication number
- TW294730B TW294730B TW084100986A TW84100986A TW294730B TW 294730 B TW294730 B TW 294730B TW 084100986 A TW084100986 A TW 084100986A TW 84100986 A TW84100986 A TW 84100986A TW 294730 B TW294730 B TW 294730B
- Authority
- TW
- Taiwan
- Prior art keywords
- extrusion
- solution
- heated
- extruded
- patent application
- Prior art date
Links
- 238000001125 extrusion Methods 0.000 claims abstract description 49
- 229920002678 cellulose Polymers 0.000 claims abstract description 37
- 239000001913 cellulose Substances 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000001556 precipitation Methods 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 238000011049 filling Methods 0.000 claims description 9
- 238000005576 amination reaction Methods 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- TWFZGCMQGLPBSX-UHFFFAOYSA-N Carbendazim Natural products C1=CC=C2NC(NC(=O)OC)=NC2=C1 TWFZGCMQGLPBSX-UHFFFAOYSA-N 0.000 claims 1
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 claims 1
- JNPZQRQPIHJYNM-UHFFFAOYSA-N carbendazim Chemical compound C1=C[CH]C2=NC(NC(=O)OC)=NC2=C1 JNPZQRQPIHJYNM-UHFFFAOYSA-N 0.000 claims 1
- 239000006013 carbendazim Substances 0.000 claims 1
- 230000002079 cooperative effect Effects 0.000 claims 1
- ZGUYPJJFHYFLBV-UHFFFAOYSA-N methyl n-(5-tert-butyl-1,2-oxazol-3-yl)carbamate Chemical compound COC(=O)NC=1C=C(C(C)(C)C)ON=1 ZGUYPJJFHYFLBV-UHFFFAOYSA-N 0.000 claims 1
- 239000000112 cooling gas Substances 0.000 abstract description 16
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 235000012438 extruded product Nutrition 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 101100004286 Caenorhabditis elegans best-5 gene Proteins 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- KDXKERNSBIXSRK-YFKPBYRVSA-N L-lysine Chemical compound NCCCC[C@H](N)C(O)=O KDXKERNSBIXSRK-YFKPBYRVSA-N 0.000 description 1
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012681 fiber drawing Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C13/00—Sausage casings
-
- 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
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/913—Cooling of hollow articles of tubular films externally
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/02—Cellulose; Modified cellulose
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Moulding By Coating Moulds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Processing Of Meat And Fish (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Reinforced Plastic Materials (AREA)
Description
•94730 A? __B7_ 五、發明説明(1 ) 本發明係關於一種藉由擠壓一經加熱之纖維素三級胺 化氧溶液使通過空氣隙並進入一沈澱浴中以製備纖維素片 的裝置及方法。特定言之,本發明係關於一種製備纖維素 管狀薄膜的裝置及方法。就下列專利說明書及申請專利範 圍而言’可明瞭,薄片"一詞也涵蓋平面模塑成形物,如 薄膜。 從美國專利US — PS 2 17 9 181案號中可 得知三級胺化氧具有溶解纖維素之特性,同時纖維素模塑 成形物如纖維也可藉由沈澱從這些溶液中獲得。舉例之, 一供製備此類溶液之方法係揭示於歐洲專利E P - A 〇 3 5 6 4 1 9案號中,根據此公告係先在水性三級胺化 氧中製備繊維素之懸浮液》此胺化氧含有最高至4 Ow t %的水。加熱該水性纖維素懸浮液,並於減壓下除去水直 到纖維素溶解爲止。 從德國專利DE—A 2 844 163案號中知悉 經濟部中央標準局員工消费合作社印製 (請先閲讀背面之注意事項再填寫本頁) ,製備纖維素纖維時,在紡絲塑模與沈澱浴之間要有一空 氣隙,以便在塑模處拉絲。在塑模處拉絲是必需的,因爲 該成形之紡絲溶液一旦與水性沈澱浴接觸後,纖維拉絲將 非常困難》在空氣隙中定型之纖維結構係於沈澱浴中凝固 〇 同樣地,德國專利DE—A 2 830 685案號 也揭示一供製備纖維素纖維之方法,其中纖維素之三級胺 化氧溶液係於熱條件中定形,即得到可用空氣冷卻之纖維 絲,然後再將之導入沈澱浴中以便使溶解的纖維素沈澱。 本紙張尺度適用中國國家揉準(CNS ) A4規格(210X297公釐) 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明(2 ) 同樣地,紡絲纖維的表面也是用水潤濕以減少彼等黏附到 鄰近纖維的傾向。 一如上述形態之供製備無縫管狀薄膜的裝置及方法係 揭示於國際專利W0 93/13670案號中。根據此 一已知方法,纖維素溶液係通過一具有環狀擠壓銳孔之擠 壓塑模,以便獲得一管狀物,然後在一圓柱狀心軸上拉絲 ,再導入沈澱浴中。爲了確使該擠壓好之管狀物不會黏附 在心軸表面,其表面可用一薄層水覆蓋,如此管狀物內邊 就會凝結並可在圓柱狀心軸上滑動。然後,此舉有一缺失 ,即該用來潤濕心軸表面的水將爬昇到擠壓銳孔並濡濕塑 模唇緣,其不僅會在實際的擠壓過程中導致不想要的凝結 ,還會使擠壓塑模變冷。此現象較不爲人喜歡,乃因爲變 冷的塑模會使欲擠壓的溶液冷卻,因而增加溶液的黏度, 如此將使無麻煩之擠壓以獲得具均一厚度的薄片變得不可 行。再者,當欲製備各種厚度的薄片時,早先所列舉之裝 置也必須進行昂貴的改造。 W 0 93/13670案號中所揭示之裝置的另一 缺點是沒有高生產速率。此乃因爲擠出物的冷卻並不足夠 ;原因是熱並無法從該受熱擠出片中快速地驅散。 在其他原因中,由於纖維素溶液有異常高的黏度,所 以那些欲擠壓之嫌維素溶液必須加熱至高於1 1 o°c溫度 才能處理。待擠出物從塑模唇緣脫出後,該擠出溶液應會 冷卻至某一程度並固化,如此彼等才能在導入沈澱浴之前 (亦即凝結之前)被拉絲。假若冷卻不足時,該擠出溶液 本紙張尺度適用中國國家橾準(CNS ) A4規格(210X 297公釐) (請先閲讀背面之注意事項再填寫本頁) 訂 -5 - A7 B7 五、發明説明(3 ) 在空氣隙中的逗留時間必須相對地延長,而此舉僅能藉由 減少拉絲速度來達成。另一方面,若擠壓係在低溫下進行 ,則材料在擠壓裝置中的分佈就會有問題。 本發明之目標係提供一種藉由擠壓-經加熱之纖維素 三級胺化氧溶液以製備纖維素片的裝置及方法,其不會呈 現上述列舉之缺點,並且特定言之,此裝置及方法將展現 高生產能力。 根據本發明之裝置,即上文提及之供製備纖維素片的 形態包括一帶有擠壓銳孔之擠壓塑模;其特徵爲鄰近該擠 壓銳孔下方有一冷卻氣體之入口以冷卻該擠出片。舉例之 ,在_ 1 0°C至+ 5°C溫度下之冷卻空氣可適用做爲冷卻 氣體。室溫下之空氣也可用來冷卻該受熱之擠出物。顯而 易見地,藉使用如本發明之氣體冷卻及藉使用溫度變數及 輸入量,就可以簡單方法使冷卻能力與相關之方法條件匹 配,藉此大量地增高生產力。 根據本發明之裝置的有效具體實施例是在擠壓銳孔兩 邊提供一冷卻氣體之入口。 經濟部中央標準局負工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 根據本發明之裝置的較佳具體實施例係用來製備纖維 素管狀薄膜,其特徵爲擠壓塑模的擠壓銳孔實質上係設計 成環狀,且冷卻氣體之入口係在該由擠壓銳孔所形成之環 的外側。根據本發明之裝置的具體實施例非常適於製備具 有相當小直徑,例如小於7 0 m m的管狀薄膜。 如本發明帶有環狀圖樣擠壓銳孔之裝置的另一較佳具 體實施例係使用來製備具有較大直徑之纖維素管狀薄膜, 本紙張尺度適用中國國家樣準(CNS ) A4規格(210X297公釐) _ 6 — 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明(4 ) 其特徵爲冷卻氣體之入口係在該由擠壓銳孔所形成之環的 內側。由於用過之冷卻氣體不能通過該密封之管狀物,所 以在此實例中也必須提供一出口(位於該由擠壓銳孔所形 成之環的內側)給用過之冷卻氣體。冷卻氣體之入口最佳 地係設計成冷卻氣體可直接導向擠壓銳孔的出口邊緣。 爲了能特別有效地冷卻,此一如本發明裝置的具體實 施例有另一個冷卻氣體之入口,此入口係位於該由擠壓銳 孔所形成之環的外邊。 特別令人滿意的裝置係還有另一供纖維素沈澱劑用之 入口及一供沈澱浴液體用之出口者,此兩個入口及出口皆 位於該由擠壓銳孔所形成之環的中心。 同時,經證實,當該如本發明之裝置具有至少一個間 隔板位於沈澱浴液體之出口下方時會更有效。此特徵將有 效地防止擠出板不會在沈澱浴中摺疊。 本發明進一步係關於一種製備纖維素片之方法,其中 纖維素之三級胺化氧溶液係在加熱狀態經由一帶有擠壓銳 孔之擠壓塑模而被擠壓出,同時該受熱之擠出溶液將導入 沈澱浴中以使溶解之纖維素沈澱,此方法之特徵爲該受熱 之經擠出溶液係藉在擠壓後及導入沈澱浴之前立即地暴露 於氣體股流中而冷卻。經證明,當該氣體股流基本上係與 擠壓方向成直角時會特別有效。 若該受熱之擠出溶液是暴露於兩道氣體股流中時,充 足的冷卻就會發生,此舉可藉使兩道氣體股流衝擊該熱經 擠壓溶液的相反兩邊就可達到最佳程度。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁) 装. —訂 -7 - 經濟部中央標準局員工消費合作社印製 294730 A7 B7 五、發明説明(5 ) 當該受熱之纖維素溶液係經由一帶有環狀擠壓銳孔之 擠壓塑模以管狀形成擠壓出,且該受熱之管狀擠出溶液係 以其外邊暴露於氣體股流中時,則本發明之方法可應用於 製備具有相當小直徑(例如,小於7 0 m m )之纖維素管 狀薄膜上。當該擠出溶液係從內部冷卻時,則製備具有較 大直徑之管狀薄膜將是最佳的。同時,在此一如本發明方 法之具體實施例中,若該受熱之管狀擠出溶液係以其內部 及其外邊皆暴露於氣體股流中,就可達到充足的冷卻。 經證實,當該受熱之管狀擠出溶液在冷卻後及在導入 沈澱浴之前即由其內部與一纖維素沈澱劑接觸時,會較有 效。 根據本發明之裝置及如本發明之方法乃特別適於處理 纖維素於N —甲基嗎啉—N -化胺(NMMO)之水溶液 〇 本發明之較佳具體實施例將藉由隨附之圖進一步說明 ,其中圖1係以圖示顯示一供製備纖維素板之裝置,而圖 2則圖示一供製備繊維素管狀薄膜之裝置。 圖1顯示一延長之擠出裝置的橫截面,此裝置基本上 係由擠壓塑模1 a及兩個冷卻氣體之入口 2 a和2 b (薄 膜狀之擠出溶液3 a係由此兩個入口之冷卻氣體來冷卻) 所組成。在入口 2 a及2b中冷卻氣體之導入係以向下箭 頭表示。冷卻之擠出產物係經由一空氣隙拉絲(此空氣隙 係由塑模下面及沈澱浴表面之間的距離來決定),再通入 會使纖維素沈澱之沈澱浴中。三級胺化氧將由沈澱浴吸收 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) (請先閲讀背面之注意事項再填寫本頁) Γ
I -8 - 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明(6 ) 。沈澱浴之表面係由一連字符號線表示,而位於沈澱浴內 之導向條則以4 a及4 b表示。薄片係由沈澱浴中之滾柱 偏向,然後再從沈澱浴中抽取。 從圓1中可看出,擠壓塑模1 a係由數個可互相扭緊 或鎖上之元件所組成。此模之構造相當於那些常用於熔融 擠壓高黏度、聚合物質之模的結構》舉例說明之,較有利 地是在塑模內提供一些設計(未顯現)以確使欲擠出之物 質有均勻分布。 NMMO纖維素溶液將於來自上面的壓力(以垂直箭 頭表示)下通入擠壓塑模1 a,並強制通過一在圖中以粗 黑線表示之濾板。此濾板係由位於其下方之支撐板支持著 。其後,該已濾好之擠出產物將通入由元件9 a及9 b所 組成之實際的塑模體內。NMMO纖維素溶液係經擠壓通 過擠壓銳孔5。擠壓銳孔5有一橫切面的擴張區以充做爲 減壓區域。擠壓塑模1 a係由一流經孔隙形狀之溝槽6的 熱轉換媒質直接加熱。在擠壓塑模1 a與冷卻氣體入口 2 a及2 b之間可提供熱絕緣(未顯現),以防止熱從塑 模la轉換到入口 2 a及2b。 塑模橫切面的調整可藉由替換兩個元件9 a及9 b而 相當簡單地完成,其中該裝置內之其餘元件的尺寸並不需 要改變,此舉使如本發明之裝置有一決定性優勢。 圖1係顯示一可使冷卻氣體吹到該擠出產物兩側的裝 置,其中吹拂方向基本上係與擠壓方向成直角。 圖2係顯示一如本發明之供製備管狀薄膜的裝置。此 本紙張尺度適用中國國家棣準(CNS) A4規格(210X297公釐) ^^1 ^^^1 ^^^1 ^^^1 In In 1 In 、一SJ (請先閲讀背面之注意事項再填寫本頁) -9 - 經濟部中央標準局員工消費合作社印裝 A7 B7 五、發明説明(7 ) 裝置基本上係由一包括數個元件(彼等可互相扭緊或鎖上 )之環狀擠壓塑模1b所組成。纖維素溶液係如圖2中之 垂直箭頭所示從上面送入非中心區。擠出物質係通入一從 外部加熱之環狀分佈室7內》此溶液從環狀分佈室7強制 通過一在圖中是由粗黑線表示,且是由位於其下方之支撐 板支持著的環狀濾板。然後此濾好之溶液會通入由兩個環 狀半面體8 a及8 b所形成之可分開塑模體內。同時,在 此一如本發明裝置之具體實施例中,在擠壓銳孔5處也提 供一供減壓用之擴張區。該擠出產物係以管狀受熱之擠出 物形式從擠壓銳孔5之模唇緣強制進入空氣隙內。 誠如圖1所示之裝置,此處塑模橫切面之調整也可藉 由替換兩個元件8 a及8 b而相當簡單地完成。 在其內部及外側處皆提供有螺旋形狀通路之環狀體是 位於該由兩個元件8 a及8 b所形成之環狀凹窩內;濾好 之溶液將強制通過這些通路而進入擠壓銳孔中。 個別供冷卻空氣及用過之冷卻空氣用之入口及出口, 以及個別供水及沈澱溶液體用之入口及出口係以同心管形 式提供於環狀塑模1 b的中心。冷卻空氣之入口係以參考 符號1 1 a表示,此空氣係通過一具有良好空氣流動特性 之擋板1 3,其中該空氣將偏向水平,然後衝擊該管狀擠 出溶液3 b之內部。金屬導板1 4可確使部份的冷卻空氣 直接衝擊擠壓銳孔5的外緣。用過之冷卻空氣是從出口 1 1 b離去。 爲了增進冷卻作用,提供了一冷卻空氣之入口 2 c在 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 一 10 _ (請先閱讀背面之注意事項再填寫本頁) 装· 經濟部中央標準局員工消費合作社印裝 A7 B7 五、發明説明(8 ) 該由擠壓銳孔5所形成之環的外邊。如圖1般此第二個冷 卻空氣的供應係以兩個向下箭頭表示。 在擋板1 3下面,有一平板狀盤1 5,經由此工具管 狀物3 b之內表面就可用沈澱劑(水)濡濕。此沈澱劑之 入口係以符號1 2 a表示。 爲了處理相當長之圓柱狀薄膜,鄰近沈澱浴(以連字 符號線表示)表面之下方有一間隔板1 6,其外緣已被弄 圓,如此該凝結但尙繊弱之薄膜若在其上面滑動時就不會 受損。若是能確使接觸表面,即間隔板1 6與薄膜3 b之 間的磨擦表面保持很少,就能令人十分滿意。 間隔板1 6係浸到沈澱浴內,同時具有使該浴鎮定的 功能。其也可提供鑽孔功能,經此可使物質的交換發生。 在管狀薄膜偏向沈澱浴中的導向滾輪(未顯現)前, 此薄膜在導入沈澱浴時將涉入數個間隔板16中。 圖2所示之裝置中供應有一浸入吸管,經由此管,該 經由2 a送入之用過的沈澱劑就可再冷被抽出。可導引到 此浸入吸管之抽吸管18是鄰近於沈澱浴表面的上方。 此浸入吸管的功用如下:只要抽吸管18未浸入於沈 澱浴下面,則空氣及非液體者就可抽吸上來。一旦沈澱浴 的水平提昇且此兩個抽吸管被浸到時,沈澱浴液體不但可 從浸入吸管1 7中,也可從抽吸管1 8中抽吸上來,直到 該兩個抽吸管再次從沈澱浴中浮現且空氣會被抽吸上來爲 止。此一處置也可確使在較下面部份之管狀薄膜中,沈殿 浴內之NMMO濃度(即與薄膜內部接觸的部份)不會增 本紙張尺度適用中國國家標準(CNS ) A4規格(210'〆297公釐) 7¾-- (請先閱讀背面之注意事項再填寫本頁) Γ -° -11 - 五、發明説明(9 加 A7 B7 定 固 式 形 動 99 移 可 以 是 好 最 5 盤 狀 板 平 及 3 板 擋 前 先 此 在 可 就 此 如 的 足 。 充 整常 周 _ 可係 就卻 濕冷 潤之 部明 內發 及本 卻據 冷根 此 如 料 物 的 高 還 者 供 提 所 置 裝 壓 擠 用 液 溶 素。 維膜 纖薄 之壓 示擠 揭下 所量 藝過 技通 ------------^ Μ衣-- (請先閲讀背面之注意事項再填寫本頁) —訂 經濟部中央標準局員工消費合作杜印製 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ297公釐) 12 -
Claims (1)
- A8 B8 C8 D8 2947s〇六、申請專利範圍 第84100986號專利申請案 中文申請專利範圍修正本 --------Ί裝------訂 (請先閲讀背面之注意事項再填寫本頁) 民國8 5年2月修正 1_ 一種製備纖維素片之方法,其中繊維素之三級胺 化氧溶液係在加熱狀態經由一帶有擠壓銳孔(5 )之擠壓 塑模(1 a ; 1 b )而被擠壓出,同時該受熱之擠出溶液 將導入沈澱浴中以使溶解之纖維素沈澱;此方法之特徵爲 該受熱之擠出溶液係藉在擠壓後及導入沈澱浴之前立即地 暴露於氣體股流中而冷卻。 2. 如申請專利範圍第1項之方法,其特徵爲擠壓方 向基本上係與該氣體股流成直角。 3. 如申請專利範圍第1項之方法,其特徵爲該受熱 之擠壓溶液係暴露於兩隨氣體股流中。 4. 如申請專利範圍第3項之方法,其特徵爲該受熱 之擠出溶液係以兩道氣體股流衝擊其正反兩側的方式而暴 露於該等氣體股流中。 經濟部中央揉準局貝工消费合作社印隶 5. 如申請專利範圔第1項之方法,其係用來製備纖 維素管狀薄膜,其中該受熱之織維素溶液係經由一帶有環 狀擠壓銳孔之擠壓塑模而被擠壓成管狀物形式;且其特徵 爲該受熱之管狀擠出溶液係以其外邊暴露於氣體股流中》 6. 如申請專利範圍第1項之方法,其係用來製備 繊維索管狀薄膜,其中該受熱之嫌維索溶液係經由一帶有 環狀擠壓銳孔(5)之擠應塑模(la ; lb)而被擠壓 本紙張尺度適用中國國家標準(CNS ) A4规格< 210X297公釐) A8 B8 C8 D8 六、申請專利範圍 成管狀物形式;且其特徵爲該受熱之管狀擠出溶液係以其 內側暴露於氣體股流中。 7. 如申請專利範圍第6項之方法,其特徵爲該受熱 之管狀擠出溶液係以其內側及其外邊暴露於氣體股流中。 8. 如申請專利範圍第6項之方法,其特徵爲該受熱 之管狀擠出溶液係在冷卻後及導入沈澱浴之前以其內側與 纖維素沈澱劑接觸。 9. 如申請專利範圍第1至8項中任一項之方法,其 特徵爲使用N-甲基嗎啉一N —化氧做爲三級胺化氧。 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央揉準局βζ工消費合作社印装 本紙張尺度適用中國國家橾準(CNS ) A4規格(210X297公釐) -2 -
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AT0184593A AT403584B (de) | 1993-09-13 | 1993-09-13 | Verfahren und vorrichtung zur herstellung cellulosischer flach- oder schlauchfolien |
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-
1993
- 1993-09-13 AT AT0184593A patent/AT403584B/de not_active IP Right Cessation
-
1994
- 1994-03-31 US US08/221,174 patent/US5607639A/en not_active Expired - Fee Related
- 1994-07-27 GB GB9508172A patent/GB2286796B/en not_active Expired - Fee Related
- 1994-07-27 AU AU72221/94A patent/AU693456B2/en not_active Ceased
- 1994-07-27 DK DK94921527.1T patent/DK0668818T3/da active
- 1994-07-27 CA CA002149218A patent/CA2149218A1/en not_active Abandoned
- 1994-07-27 DE DE59400476T patent/DE59400476D1/de not_active Revoked
- 1994-07-27 EP EP94921527A patent/EP0668818B1/de not_active Revoked
- 1994-07-27 HU HU9501389A patent/HU217866B/hu not_active IP Right Cessation
- 1994-07-27 WO PCT/AT1994/000099 patent/WO1995007811A1/de not_active Application Discontinuation
- 1994-07-27 PL PL94308895A patent/PL174959B1/pl unknown
- 1994-07-27 JP JP7508849A patent/JP2730799B2/ja not_active Expired - Lifetime
- 1994-07-27 RO RO95-00785A patent/RO112829B1/ro unknown
- 1994-07-27 DE DE4496778T patent/DE4496778D2/de not_active Expired - Fee Related
- 1994-07-27 BR BR9405588-2A patent/BR9405588A/pt not_active Application Discontinuation
- 1994-07-27 ES ES94921527T patent/ES2092908T3/es not_active Expired - Lifetime
- 1994-07-27 SK SK563-95A patent/SK281027B6/sk unknown
- 1994-07-27 CZ CZ951060A patent/CZ106095A3/cs unknown
- 1994-07-27 AT AT94921527T patent/ATE141073T1/de not_active IP Right Cessation
- 1994-07-27 RU RU95112845/25A patent/RU95112845A/ru unknown
- 1994-07-27 CN CN94190687A patent/CN1114499A/zh active Pending
- 1994-07-27 KR KR1019950701970A patent/KR100189231B1/ko not_active IP Right Cessation
-
1995
- 1995-02-07 TW TW085101274A patent/TW299360B/zh active
- 1995-02-07 TW TW084100986A patent/TW294730B/zh active
- 1995-03-08 PE PE1995263640A patent/PE19896A1/es not_active Application Discontinuation
- 1995-04-17 BG BG99586A patent/BG61995B1/bg unknown
- 1995-05-12 NO NO951902A patent/NO951902D0/no unknown
- 1995-05-12 FI FI952331A patent/FI952331A0/fi unknown
-
1996
- 1996-09-18 GR GR960402427T patent/GR3021059T3/el unknown
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1998
- 1998-02-12 HK HK98101089A patent/HK1002120A1/xx not_active IP Right Cessation
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