TWI228074B - Continuous preparation of aminoplastics and/or phenolics - Google Patents

Continuous preparation of aminoplastics and/or phenolics Download PDF

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Publication number
TWI228074B
TWI228074B TW087111672A TW87111672A TWI228074B TW I228074 B TWI228074 B TW I228074B TW 087111672 A TW087111672 A TW 087111672A TW 87111672 A TW87111672 A TW 87111672A TW I228074 B TWI228074 B TW I228074B
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Taiwan
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patent application
extruder
scope
item
melamine
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TW087111672A
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Heinz Berbner
Hans Etling
Erhard Guenther
Tilman Sirch
Hans Dieter Zettler
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Basf Ag
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G14/00Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/002Methods
    • B29B7/007Methods for continuous mixing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58Component parts, details or accessories; Auxiliary operations
    • B29B7/60Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B29B7/603Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58Component parts, details or accessories; Auxiliary operations
    • B29B7/72Measuring, controlling or regulating
    • B29B7/726Measuring properties of mixture, e.g. temperature or density
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/74Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7461Combinations of dissimilar mixers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/74Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476Systems, i.e. flow charts or diagrams; Plants
    • B29B7/748Plants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/74Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7485Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/80Component parts, details or accessories; Auxiliary operations
    • B29B7/82Heating or cooling
    • B29B7/823Temperature control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/80Component parts, details or accessories; Auxiliary operations
    • B29B7/82Heating or cooling
    • B29B7/826Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/80Component parts, details or accessories; Auxiliary operations
    • B29B7/84Venting or degassing ; Removing liquids, e.g. by evaporating components
    • B29B7/845Venting, degassing or removing evaporated components in devices with rotary stirrers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/80Component parts, details or accessories; Auxiliary operations
    • B29B7/86Component parts, details or accessories; Auxiliary operations for working at sub- or superatmospheric pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/80Component parts, details or accessories; Auxiliary operations
    • B29B7/88Adding charges, i.e. additives
    • B29B7/90Fillers or reinforcements, e.g. fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/38Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/246Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/07Flat, e.g. panels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2061/00Use of condensation polymers of aldehydes or ketones or derivatives thereof, as moulding material
    • B29K2061/04Phenoplasts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2061/00Use of condensation polymers of aldehydes or ketones or derivatives thereof, as moulding material
    • B29K2061/20Aminoplasts

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  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Glanulating (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

1228074 l、發明説明( ,』本發明係關於製備胺基塑膠及/或酚樹脂之方法,以及 製備金胺樹脂及/或酚樹脂,尤其係蜜胺-甲醛樹脂、尿素 -甲醛樹脂、酚樹脂及其摻合物之方法的用途。 μ 胺基2膠(直接抑或於半成品之進一步成形期間硬化的 注模或壓模製品)有良好的機械性質、高火焰阻滯性、 耐熱性和抗溶劑性、高耐磨擦性及良好的外觀(表面)。與 ㈣胺或其它X程塑膠比較,製備胺基塑膠之原材料的價 格較便宜。 ' 製備蜜胺樹脂半成品或成品零件之習用方法有下列一系 列步驟··先在可加熱混合容器中,將原材料分批預縮合, 以給與具有約50%強度的胺_甲醛樹脂溶液,將所產生之 溶液噴霧乾燥,以給與蜜胺_甲醛樹脂粉末,在下一步驟 中於,例如,犁型混合器中,使所產生之樹脂粉末與填料 -起乾式混合,接著藉由可加熱石牙光機連續塑化,以給食 化合物,然後在下一步驟中,先粗粉碎,接著細碾磨;分 批混合以給與均勾的顏色並將材料再次壓緊以給愈自由流 動的模製組合物,最後並注射模製或壓縮模製成 件。 在’’早程"反應器中製備蜜胺_甲醛樹脂之簡化方法説明 於US 4,458,062。此處重要的係原#料爲结晶蜜胺和固狀 甲酸,並且操作係在沒有水或任何其它溶劑存在的情形下 進行。另夕卜,此方法所給與之蜜.胺_甲趑樹脂的性質明顧 地不同於有溶劑存在下所製備之樹脂的性質。 ED-A 24 51 874説明一種製備胺基塑膠之改良方法,其 本紙張尺度適用中國國家標莩(CNS ) ^ . IV: % 經濟部中夾標準局資工消费合作社印¾ -4 1228074 A7 B7 五、發明説明(2 中預縮合之水溶液(若須要可與顏料之添加-起)進入流_ 化床乾燥器並噴在填料上,乾燥,然後接著製成丸並直接 使叫做爲模製組合物。 本發明之·一主旨係提供一種連續性方法,其使得以少 數步驟製備胺基塑勝的簡單且低成本之方法成爲可能。此 外,此新穎方法應使得胺基塑膠之加工和產品性質可在廣 足的範圍内’以簡單的方法明確地調整。 、 傾發現,此主旨係藉由下面的方法達成,其中預次凝溶 液係在第一個擠壓機中製備,預縮合溶液和添加劑之加添 -起連續餵人在進料部分⑻和脱揮發部份⑼中有局部^ 无物的第二個擠壓機,該溶液於第二個擠壓機内脱揮發,、 然後接著成形以給與最後產物。 傾發現,於第二個擠壓機内,適當選定之添加劑的加 添,使得調整樹脂之反應性或進行產物性質(例如,尤其 係衝擊強度或其它機械性質)方面的控制性改良係可ς 的。此外,本方法使產物的殘餘濕氣可在第二個擠= 内,藉由脱揮發系統來調整。 經漳部中央標準局兵工消费合作社印製 在本新穎方法中,預縮合溶液係以從ΕΡ-Β 〇 355 76〇 所知之方法先製備,該方法係使原材料(例如,蜜胺^中 醢水溶液)與(若須要)多聚曱醛,以蜜胺:甲醛之莫耳7 爲1 : 1.5至1 : 3,較佳係"2至1 : 3的比例混合,若須要, 加入不會妨礙縮合反應的已知改良劑和添加劑,例如,可 兀醇、二元醇、磺胺、糖、鹼性催化劑(例如,胺、胺 醇和羥基烷基蜜胺),然後使其在第—個擠壓機中,以工基 -5- 本紙張尺度適用中國國家標年(CNS)A4規格(2ΐ〇χ 297公楚) 1228074 A7 B7 五、發明説明(3 ) 至140 C預縮合至相當於黏度上 箱—人, 反上升至至少1以1的縮合度。 預知a溶液有6 0至90%的固I#本县 设古 U 含量,較佳係75至80%〇 尿素-甲趁預縮合溶液可由履去 嘴 素和甲醛溶液(若須要,可 巾有適當添加劑)以同樣方法製備。 万法足重要單元爲第二個擠壓機,餵人其中的係在第一 個擠壓機中,以已知之方法製 ·' 仗I備的預縮合溶液〇 5&夕大筐一 個擠壓機必須1〇〇%充滿,以致 「、 1了田時間可準確調整, 於=明確的縮合度,但根據本發明,第二個擠壓機必須 2科邵份⑻和脱揮發部份(G)中係局部充滿。這使得先 = 直接加至第二個擠壓機中係可能的,該添加劑可 掺壓機ST基塑膠(加工和產物性質,然後接著在第二個 ^機中進㈣化物的脱揮發作用,㈣所產生之固體的排 放,所以轉發作用將不可能在完全充滿的擠壓機内進行。 ::個擠壓機最好係以每分鐘约12至2〇轉的旋轉速率 範圍操作’而第二個擠壓機最好係每分鐘2〇至谓轉,特 別好地係每分鐘8 〇至150轉。 第二個擠壓機之溫度可藉由溫度計測器(TIC)而分區控 制,,足値有利地係3〇s17(rc,較佳係8〇至12〇乇。 怒濟部中央標準局黃工消资合作社印製 在第二A個擠壓機之末端,加入使產物之接著的硬化作用 發生的酸式催化劑。 、連接於第二個擠壓機的係以適合之方法,使最後產物之 成形成用發生的設備: 在第一種讀中,於第二個擠壓機中脱揮發的完全配製 好模製組合物可藉由多股塑膜機擠壓、製成丸、給與最後 1228074 Α7 Β7 五、發明説明(4 、乙燥作用並冷部。丸球具有與商業供應之模製組合物 似㈣質並可藉由,例如,注射塑模作用進一步加工。、頁 在弟二種万法中,在擠壓機之末端可使用薄片塑模機, f且經由其’可使原料模製组合物成形以給與連續薄片。 馬了要在此調整方法參數’户斤以薄片有充分的形穩性,但 尚未完全硬化。接著,將所產生之薄片校準和冷卻。如此 給與-適於銷售的產物’其係能再加工的半成品,並且其可 在可=熱壓力機上再成形,以給與想要的硬化過最後零件。 在第三種方法中,將連續薄片校準,並藉由連接在薄片 聽機1下游處的可加熱帶式壓力機而以13G至例。c完全 硬化。完全硬化的模製物可在多種應用領域中使用,尤其 係用在電子、建築和汽車馬達等領域 使用後文之圖示和操作實例可進—步例舉説明本發明。 在第一個擠壓機14中,預縮合溶液係以由ΕΡ_Βσ355 760中所知的方法來製備,接著將配方示於表^。 表1 ·預纟ί§合落液之配方 經滴部中央標準局男工消贽合作社印製
本纸張尺度適用中國园家榡準(CNS ) Α4規格(210Χ 297公釐) 1228074 五、發明説明(5 在本方法中,來自儲槽3的蜜胺和來自儲槽1的多聚甲 醛係藉由連續式稱量給料器5和6餵入混合器。來自 攪拌儲槽2的液態甲醛溶液,來自槽9的二乙基乙醇胺和 來自槽4的含水5 _羥基噁戊基蜜胺混合物係藉由計量幫 浦7、8和1 〇,亦餵入混合器1 1内。懸浮液於槽1 2内脱揮 發’然後藉由f浦i 3,計量後進入第一個可加熱連續擠 壓機1 4。之後’固態組份溶解並產生樹脂似的預縮合液 16所形成之預縮合液爲約80%強度的高黏滯水溶液。 口預縮合液1 6係直接抑或藉由計量幫浦1 5餵入第二個擠 壓機2 0。來自儲槽丨7之乾式混合過添加劑係藉由重量計 f系統1 8,亦餵入第二個擠壓機2 〇。可能的添加劑爲可 ,吏加工及/或產物性質的那些,例如,纖維或粉狀無機 増強劑或填料,像玻璃纖維、金屬粉末、金屬鹽類或矽醆 鹽,生物性增強劑或填料,像纖維素纖維、紙漿或木粉, 增加彈性劑,像丙烯酸酯,橡膠,聚乙二醇,.二醇,山义 糖醇,糖,顏料,UV安定劑,反應阻滯劑,像胺,潤坍 劑,緩衝劑或無黏性劑。 經濟部中央標準局男工消f合作社印製 表2給與具有下列添加劑的模製組合物配方之實例⑴ 爲填料的纖維素,做爲改良劑的二乙烯乙二醇(特別八 增進抗碎裂性),做爲潤滑劑的硬脂酸鹽混合物,做A ^ 衝劑的碳酸納和做爲無黏性劑的酞酸二烯丙酯。 -8- 本祕尺度顧悄辭縣297公¥7 1228074 A7 B7 五、發明説明(6 模製组合物配方
1^11^的80%預縮合液 經潢部中央標準局貞工消贽合作社印製
WmtUm)_ Z乙锦醇(阻滯劑,增加-強性劑) 昆合物(潤滑劑)~' 蘇打(緩衝劑)_ 丙酯(無黏性齊jy擠壓機20 内的'^ 來控制,設定値有利地係30至170。(:,較佳係8〇至12〇1。) 在第二個擠壓機2 〇中,反應混合物係藉由眞空幫浦來 脱揮發,如此使得將模製組合物的殘餘濕氣調整至較佳的 8至15%範圍内係可能的。於第二個擠壓機2〇之末端處的 薄片塑模機21連續地使模製組合物成形以給與原料薄 片,其在正模内以140。(:硬化不超過〇.5至1〇分鐘,較佳係 不超過1至3分鐘。 ' 測試已成形且硬化之薄片的撓曲強度和衝擊強度。爲對 ,由瑞清(Raschig)商業供應的蜜胺-甲搭模製組合物 ®MF 152在正模内,以140。〇硬化不超過5分鐘並測量其之 機械性質。達到DIN 7708 -152 N的材料品質標準。 表3 :機械性質 (請先聞讀背面之注意事項再填寫本頁}
、1T Φ 根據DIN 53452之 撓曲強度N/mm2, (23〇C) 根據ISO 179之衝 擊強度kJ/m2, (23。。) 來自操作貫例的模製物 102 6.6 來自模製組合物@1^111 152, 瑞清(Raschig)之模製物 76 4.8 -9 - 本紙張人度適用中國國家標準(CNS ) Λ4規格(2丨〇'χ297公釐)

Claims (1)

122祕1672號專利申請案 Λ g中請專利範圜替施太η祭1π Ή 六、申請專利範園 1. 一種製備胺基塑膠及/或酉分樹脂之方法,其中預 於、、 =第-個擠壓機中製備,其包括將預縮合溶液二:: 1《加添了起連續銀人在進料部份⑻和脫揮發部份 局邵填充的第二個擠壓機(20),於第二個 =將預縮合溶液脫揮發,然後使其成形以獲得最H 2·根據申請專利範圍第1項之方法,其中第-個擠壓機係以 U至20分鐘-^的旋轉速率範圍操作,而第二個擠壓機係 以20至3〇〇分鐘-1的旋轉速率範圍操作。 3. 根據中請專利範圍第2項之方法,其中第二個擠壓機係 以8 0至丨5 〇分鐘-1的旋轉速率操作。 4. 根據申請專利範圍第1或2項之方法’其中第二個擠„ (20)係在30至i7〇°C下加熱。 5·根據申請專利範圍第4項之方法,其中第二個擠壓機(2〇) 係在8 0至1 2 0。(:下加熱。 6·,據申請專利範圍第丨項之方法,其中殘餘物水份係在 第二個擠壓機内調整至8至! 5重量%水。 7 ·根據申請專利範圍第丨項之方法,其中最後產物為模製組 合物。 8·根據申請專利範圍第丨項之方法,其中最後產物為能夠進 一步成形的半成品。 9·根據申請專利範圍第丨項之方法,其中最後產物為成品零 件。 10·根據申請專利範圍第1項之方法,其係用以製備蜜胺樹 脂。 54062-9310l5.DOC ^ 本紙張尺度^^^家標準(CNS) A4規格(210X297公釐). 8 8 8 8 A BCD 1228074 六、申請專利範圍 11. 根據申請專利範圍第1 0項之方法,其中該蜜胺樹脂為蜜 胺-甲醛樹脂。 12. 根據申請專利範圍第1項之方法,其係用以製備尿素-甲 酸樹脂。 54062-931015.DOC - 2 - 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐).
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