TW201902970A - 一種用於三夾板之具有低加工溫度和增強附著力的聚三聚異氰酸酯發泡體 - Google Patents
一種用於三夾板之具有低加工溫度和增強附著力的聚三聚異氰酸酯發泡體 Download PDFInfo
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Abstract
本發明係關於一種聚三聚異氰酸酯發泡體、其在三夾板中之用途、包含該發泡體之三夾板及製造該三夾板的方法。本發明之該聚三聚異氰酸酯發泡體展示甚至在無附著促進劑之情況下的良好附著特性、較低溫(≤ 50℃)下PIR系統的改良可加工性及改良阻燃性特性。
Description
本發明係關於一種聚三聚異氰酸酯發泡體、其在三夾板中之用途、包含發泡體之三夾板及製造三夾板的方法。
具有多孔芯之三夾板因其輕重量及高強度而引人注目。習知地,此類面板藉由在兩個面層之間包夾具有低強度的多孔芯來構建,面層中之各者比多孔芯薄許多但具有極佳機械特性。
由於三夾板市場中愈來愈高之阻燃性(flame resistance;FR)需求,所以聚三聚異氰酸酯(polyisocyanurate;PIR)發泡體因其良好FR特性而變得愈來愈受歡迎。然而,PIR三夾板生產存在兩個主要問題:a)PIR發泡體與金屬面層之間的不良附著力,b)高加工需求,例如> 60℃。許多客戶使用附著促進劑來解決附著力問題。此外,高加工溫度之成本高,尤其在冬季時。兩個問題增加三夾板生產之成本。
具有改良附著力特性之聚胺酯/聚三聚異氰酸酯發泡體已揭示於許多公開案中。
舉例而言,CN 102666630 A揭示聚胺酯/聚三聚異氰酸酯發泡體,其可藉由使A)多元醇組分與B)聚異氰酸酯組分反應來獲得,該多元醇組分包含A1)芳族聚酯多元醇、A2)以碳水化合物多元醇開始之聚醚多元醇及A3)以乙二醇開始的聚醚多元醇,其中多元醇組分A)之總羥基數為> 150 mg KOH/g至≤ 300 mg KOH/g,在該聚異氰酸酯組分中NCO基團與可相對於NCO基團反應之氫原子之總和的當量比為≥ 110:100至≤ 200:100。據說,發泡體具有與面層之改良黏結特性且適合於在不需使用額外黏結劑之情況下產生複合物元件。然而,NCO指數減小至110 - 200,且此使得發泡體變為聚胺酯/聚三聚異氰酸酯摻合物(polyurethane/polyisocyanurate blend;PUIR)發泡體。聚胺酯部分將改良附著力特性。然而,PUIR發泡體之阻燃性特性比PIR發泡體之阻燃性特性更差。
本發明之目標為提供展示甚至在無附著促進劑之情況下的良好附著力特性、較低溫(≤ 60℃)下之改良可加工性及改良阻燃性特性的聚三聚異氰酸酯發泡體。
目標可藉由聚三聚異氰酸酯發泡體來達成,該聚三聚異氰酸酯發泡體可藉由使A)多元醇組分與具有約210至約500之NCO指數的B)聚異氰酸酯組分反應來獲得,該多元醇組分包含:A1)聚酯多元醇、A2)短鏈聚醚多元醇及A3)長鏈聚醚多元醇。
在本發明之第一態樣中,提供有可藉由使A)多元醇組分與具有約210至約500之NCO指數的B)聚異氰酸酯組分反應來獲得之聚三聚異氰酸酯發泡體,該多元醇組分包含:A1)聚酯多元醇、A2)短鏈聚醚多元醇及A3)長鏈聚醚多元醇。
在本發明之第二態樣中,提供有本發明之聚三聚異氰酸酯發泡體在三夾板中的用途。
在本發明之第三態樣中,提供有包含本發明之聚三聚異氰酸酯發泡體的三夾板。
在本發明之第四態樣中,提供有製造本發明之三夾板的方法,該方法包含將產生本發明之聚三聚異氰酸酯發泡體之反應混合物塗覆至面層的步驟。
在一個態樣中,本發明係有關可藉由使A)多元醇組分與具有約210至約500之NCO指數的B)聚異氰酸酯組分反應來獲得之聚三聚異氰酸酯發泡體,該多元醇組分包含:A1)聚酯多元醇、A2)短鏈聚醚多元醇及A3)長鏈聚醚多元醇。
聚酯多元醇A1)可為例如芳族聚酯多元醇。芳族聚酯多元醇可為例如二官能以及視情況三官能或更大官能醇與芳族二官能以及視情況三官能及更大官能羧酸或羥基羧酸或內酯的聚縮合產物。取代自由聚羧酸,低級醇之對應聚羧酸酐或對應聚羧酸酯亦可用於製備聚酯。
用於製備聚酯多元醇之適合二醇之實例為:乙二醇、丁二醇、二乙二醇、三乙二醇、1,2-丙二醇、1,3-丙二醇、1,3-丁二醇、1,4-丁二醇及其異構物、1,6-己二醇及其異構物或新戊二醇,此外聚伸烷二醇,諸如聚乙二醇,其中較佳為乙二醇、丁二醇、1,6-己二醇及其異構物以及新戊二醇。另外,亦可使用多元醇,諸如三羥甲基丙烷、丙三醇、赤藻糖醇、季戊四醇或三羥甲基苯(trimethylolbenzene)。
可使用例如鄰苯二甲酸、間苯二甲酸、對苯二甲酸、萘二羧酸及/或四氯鄰苯二甲酸作為芳族二羧酸。對應酸酐亦可用作酸源。
聚酯多元醇A1)較佳地具有約50 mg KOH/g至約750 mg KOH/g、更佳地約100 mg KOH/g至約500 mg KOH/g、甚至更佳地約150 mg KOH/g至約400 mg KOH/g、最佳地約150 mg KOH/g至約300 mg KOH/g的羥基數。聚酯多元醇A1)之數目平均分子量可為約100至約3000、較佳地約200至約2000、更佳地約300至約1000、最佳地約400至約800,如藉由使用聚苯乙烯標準之凝膠滲透層析法(gel permeation chromatography;GPC)所量測。
聚酯多元醇A1)之量按組分A)及B)之總重量計可為約1%至約35%、較佳地約5%至約30%、更佳地約15%至約25%。
短鏈聚醚多元醇A2)及長鏈聚醚多元醇A3)中之聚醚多元醇藉由已知方法獲得,例如在存在催化劑的情況下,藉由添加包含2至8個、較佳地2至6個且尤其較佳地2至4個反應性氫原子之至少一種起動分子,經由環氧烷的陰離子或陽離子聚合獲得。所使用之催化劑可包含:鹼金屬氫氧化物,諸如氫氧化鈉或氫氧化鉀;或鹼金屬醇化物,諸如甲醇鈉、乙醇鈉、乙醇鉀或異丙醇鉀;或就陽離子聚合而言,路易斯酸,諸如五氯化銻、三氟化硼醚合物或漂白土。可使用之其他催化劑為雙金屬氰化物化合物,稱為DMC催化劑。用於製備A2)及A3)之環氧烷包含伸烷基部分中具有2至8個碳原子之一或多種化合物,例如四氫呋喃、環氧乙烷、環氧丙烷、1,2-環氧丁烷、2,3-環氧丁烷或氧化苯乙烯,在各情況下單獨或呈混合物形式,且較佳地為環氧丙烷及/或環氧乙烷。
可使用之起動分子之實例為:乙二醇、二乙二醇、丙三醇、三羥甲基丙烷、季戊四醇、諸如蔗糖的糖衍生物、諸如山梨糖醇之己糖醇衍生物、甲胺、乙胺、異丙胺、丁胺、苯甲胺、苯胺、甲苯胺、甲苯二胺、萘胺、乙二胺、二伸乙基三胺、4,4'-亞甲基二苯胺、1,3-丙二胺、1,6-己二胺、乙醇胺、二乙醇胺、三乙醇胺以及其他二元醇或多元醇、或二元胺或多元胺。
在一個較佳具體實例中,短鏈聚醚多元醇A2)由在二羥甲基丙烷、三羥甲基丙烷或丙三醇或乙二醇上,較佳地在乙二醇上引發之環氧乙烷及/或環氧丙烷、尤其環氧丙烷的反應產物構成。
短鏈聚醚多元醇A2)具有約100 mg KOH/g至約1250 mg KOH/g、更佳地約100 mg KOH/g至約950 mg KOH/g、尤其較佳地約100 mg KOH/g至約500 mg KOH/g、最佳地約100 mg KOH/g至約300 mg KOH/g之OH數。
短鏈聚醚多元醇A2)之數目平均分子量可為約100至約1000、較佳地約200至約900、更佳地約300至約800、最佳地約400至約600。
短鏈聚醚多元醇A2)之量按組分A)及B)之總重量計可為約1重量%至約20重量%、較佳地約1%至約10%、更佳地約1%至約6%。
在一個較佳具體實例中,長鏈聚醚多元醇A3)由在二羥甲基丙烷、三羥甲基丙烷或丙三醇上,較佳地在丙三醇上引發之環氧乙烷及/或環氧丙烷、尤其環氧乙烷及環氧丙烷的反應產物構成。
長鏈聚醚多元醇A3)具有約10 mg KOH/g至約1000 mg KOH/g、更佳地約20 mg KOH/g至約500 mg KOH/g、尤其較佳地約30 mg KOH/g至約200 mg KOH/g、最佳地約40 mg KOH/g至約100 mg KOH/g之OH數。
長鏈聚醚多元醇A3)之數目平均分子量可超過約1000至約5000、較佳地約2000至約5000、更佳地約3000至約5000、最佳地約3000至約4000。
已出人意料地發現,當使用長鏈聚醚多元醇A3)作為起始物質時,將大大改良所得PIR發泡體之附著強度。長鏈聚醚多元醇A3)之量按組分A)及B)之總重量計可為約1%至約20%、較佳地約1%至約10%、更佳地約1%至約5%。
聚異氰酸酯組分B)可為單體聚異氰酸酯或聚異氰酸酯預聚物。單體聚異氰酸酯可為例如脂族、環脂族或芳族異氰酸酯。實例為:二苯基甲烷2,2'-二異氰酸酯、二苯基甲烷2,4-二異氰酸酯及二苯基甲烷4,4'-二異氰酸酯;單體二苯基甲烷二異氰酸酯之混合物及具有更大數目之環的二苯基甲烷二異氰酸酯同系物(聚合MDI)之混合物;異佛爾酮二異氰酸酯(isophorone diisocyanate;IPDI)或其低聚物;甲苯二異氰酸酯(tolylene diisocyanate;TDI),例如甲苯二異氰酸酯異構物,諸如甲苯2,4-二異氰酸酯或甲苯2,6-二異氰酸酯或此等之混合物;四亞甲基二異氰酸酯或其低聚物;六亞甲基二異氰酸酯(hexamethylene diisocyanate;HDI)或其低聚物;伸萘基二異氰酸酯(naphthylene diisocyanate;NDI),或其混合物。較佳單體聚異氰酸酯為MDI。
聚異氰酸酯預聚物可藉由使過量聚異氰酸酯與具有可與異氰酸酯反應之至少兩個基團的化合物反應以產生預聚物來獲得。用於製備預聚物之聚異氰酸酯可為例如以上針對單體聚異氰酸酯所提及之彼等聚異氰酸酯。
本發明之聚異氰酸酯預聚物之NCO指數為較佳地約210至約500、更佳地約250至約500、最佳地約300至約500。較高NCO指數為改良面板應用中之FR效能的關鍵技術途徑,此將滿足面板應用中之FR需求。
製備PIR發泡體之反應在存在催化劑的情況下有利地進行。本發明中可使用之催化劑可為例如鹼性胺,例如次級脂族胺、咪唑、脒,且亦可為烷醇胺、路易斯酸或有機金屬化合物,特定言之,基於錫之彼等有機金屬化合物。諸如N,N,N',N",N"-五甲基二伸乙基三胺之多元胺亦可視情況連同乙酸鉀一起使用。
亦可使用由各種催化劑之混合物組成的催化劑系統。在一較佳具體實例中,催化劑可另外包含所謂的延遲催化劑。其中,較佳為DBU(1,8-二氮雜雙環[5.4.0]十一碳-7-烯)類胺鹽催化劑,更佳地為三級胺。
出人意料地發現,當使用延遲催化劑時,尤其當使用DBU類胺鹽作為催化劑時,將大大改良所得PIR發泡體之附著強度。
催化劑之量在各情況下按組分A)及B)之總重量計可為約0.1%至約5%、較佳地約0.1%至約4.5%、更佳地約0.1%至約3.0%、甚至更佳地約0.15%至約2.5%、最佳地約0.2%至約1.0%。
在製備PIR發泡體之本發明之方法中,可使用各種助劑及/或添加劑,例如阻燃劑、塑化劑、界面活性劑、發泡劑、穩定劑、泡孔調節劑、填充劑、顏料、染料、抗氧化劑、水解穩定劑、抗靜電劑、抑真菌劑及抑菌劑等。
可使用之阻燃劑可為含磷阻燃劑,諸如i)具有低分子量的含磷阻燃劑。此等化合物較佳地具有低於300 g/mol、尤其低於300 g/mol、較佳地低於200 g/mol且尤其較佳地150 g/mol至190 g/mol之莫耳質量,且分子中較佳地具有少於4個磷原子、尤其少於3個、更尤其少於2個且尤其1個磷原子。較佳考慮膦酸酯及/或磷酸酯。膦酸酯及/或磷酸酯之分子中可進一步包含鹵素原子。尤其較佳考慮選自以下之磷酸酯及膦酸酯:乙基膦酸二乙酯(diethyl ethanephosphonate;DEEP)、丙基膦酸二甲酯(dimethyl propylphosphonate;DMPP)及磷酸三乙酯(triethyl phosphate;TEP),且進一步較佳考慮選自乙基膦酸二乙酯(DEEP)及磷酸三乙酯(TEP)的彼等磷酸酯及膦酸酯, ii)不與異氰酸酯反應之另一組含磷化合物具有較高分子量,較佳地具有高於300 g/mol之莫耳質量。較佳地,其分子中具有至少1個磷原子。較佳考慮膦酸酯及/或磷酸酯,尤其磷酸酯。此等磷酸酯之較佳實例為磷酸二苯酯甲苯酯(diphenyl cresyl phosphate;DPC)、磷酸三(2-氯異丙基)酯(tris(2-chlorisopropyl)phosphate;TCPP)及/或磷酸三苯酯,特定言之為磷酸二苯酯甲苯酯, iii)磷酸銨或聚磷酸銨。 在本發明之較佳具體實例中,阻燃劑選自:乙基膦酸二乙酯(DEEP)、丙基膦酸二甲酯(DMPP)、磷酸三乙酯(TEP)及磷酸三(2-氯異丙基)酯(TCPP)。
阻燃劑可單獨或以混合物形式使用。阻燃劑之量在各情況下按組分A)及B)之總重量計可為0重量%至約10重量%、較佳地約0.1重量%至約8.0重量%、更佳地約0.5重量%至約7.0重量%、甚至更佳地約0.8重量%至約6.5重量%、最佳地約0.8重量%至約6.0重量%。
已出人意料地發現,當使用TEP與TCPP之組合時,將大大改良所得PIR發泡體之附著強度。在本發明之較佳具體實例中,TEP與TCPP之重量比可為約0.1至約10.0、較佳地約0.2至約5.0、更佳地約0.5至約2.0。
可使用之發泡劑為諸如水及/或甲酸之化學發泡劑,此等化學發泡劑與異氰酸酯基反應,同時消除二氧化碳且分別消除二氧化碳及一氧化碳。稱為物理發泡劑之化合物亦可與水組合使用或較佳地替代水使用。此等化合物為相對於開始組分為惰性之化合物,在室溫下大部分為液體,且在胺基甲酸酯反應之條件下汽化。此等化合物之沸點較佳低於60℃。在物理發泡劑中,亦存在在室溫下為氣態且在壓力下引入或溶解於開始組分中之化合物,實例為二氧化碳、低沸點烷烴及氟烷。
發泡劑大部分選自:烷烴、甲酸及/或具有至少4個碳原子之環烷烴,二烷基醚,酯,酮,縮醛,具有1至8個碳原子之氟烷,及在烷基鏈中具有1至3個碳原子的四烷基矽烷,特定言之四甲基矽烷。
可提及之實例為:丙烷、正丁烷、異丁烷、環丁烷、正戊烷、異戊烷、環戊烷、環己烷、二甲醚、甲基乙醚、甲基丁醚、甲酸甲酯、丙酮,且亦為可在對流層中降解且因此不損害臭氧層之氟烷,例如三氟甲烷、二氟甲烷、1,1,1,3,3-五氟丁烷、1,1,1,3,3-五氟丙烷、1,1,1,2-四氟乙烷、二氟乙烷及七氟丙烷。所提及之物理發泡劑可單獨或以任何彼此需要的組合使用。
水之量按組分A)及B)之重量計較佳在0.1重量%至2.0重量%範圍內。
可借助於Kunststoffhandbuch [塑膠手冊(Plastics Handbook)],第7卷,「聚氨酯(Polyurethane)」,Carl-Hanser-Verlag Munich,第3版,1993中之實施例發現關於用於實現本發明方法之起始物質的其他細節,諸如塑化劑、界面活性劑、發泡劑、穩定劑、泡孔調節劑、填充劑、顏料、染料、抗氧化劑、水解穩定劑、抗靜電劑、抑真菌劑及抑菌劑等。
根據本發明所獲得的PIR發泡體展示在低溫(≤ 60℃)下與已商品化之PIR系統相比的改良附著強度及改良可加工性;同時其展示極佳阻燃性。
在一個較佳具體實例中,聚三聚異氰酸酯發泡體可藉由使A)多元醇組分與具有約210至約500之NCO指數的B)聚異氰酸酯組分在存在C1)阻燃劑TEP及TCPP以及呈延遲催化劑封裝形式之C2)催化劑封裝的情況下反應來獲得,該多元醇組分包含:A1)聚酯多元醇、A2)短鏈聚醚多元醇、A3)長鏈多元醇。
已證明,本發明之反應混合物中之組分A3、C1及C2可產生改良附著力、降低加工溫度及改良阻燃性之效應。本發明將3種因素組合在一起以實施有利效應。因此,在一較佳具體實例中,製備聚三聚異氰酸酯發泡體之方法可在諸如< 60℃之低溫下進行。
在一個較佳具體實例中,聚三聚異氰酸酯發泡體可藉由使A)多元醇組分與具有約450之NCO指數的B)聚異氰酸酯組分在存在C1)阻燃劑TEP及TCPP以及呈延遲催化劑封裝形式之C2)催化劑封裝的情況下反應來獲得,在各情況下按組分A)及B)之總重量計,該多元醇組分包含:A1)呈約15%至約25%之量的聚酯多元醇、A2)呈約1重量%至約20重量%之量的短鏈聚醚多元醇、A3)呈約1%至約5%之量的長鏈多元醇,該等阻燃劑呈約0.8%至約6.0%之量,該催化劑封裝呈約0.2%至約1.0%的量。
在一個具體實例中,反應可在約20℃至約60℃、更佳地約30℃至約60℃、最佳地約40℃至約60℃之溫度下進行。
在另一態樣中,本發明係關於製造三夾板之方法,其中將產生根據本發明之PIR發泡體的反應混合物塗覆至面層。方法可連續或非連續地進行。用於連續生產之裝置例如根據DE 1 609 668或DE 1 247 612為已知的。在製造三夾板之方法之一個具體實例中,無附著促進劑層經配置於反應混合物與面層之間。在此情形下,本PIR發泡體之改良附著力特性確保發泡體與面層之間足夠的附著力。
面層可由紙張、纖維或金屬製成,較佳地由金屬製成。適合之金屬為例如鋼或鋁。
製造三夾板之方法可呈雙帶式傳送機方法之形式。因根據本發明之發泡體的附著力特性之緣故可省略面層之預處理。此將簡化方法。
在本發明方法之另一具體實例中,面層在塗覆反應混合物時具有≤ 60℃之溫度。此溫度可在生產工廠中例如藉助於前述烘箱設施實現。尤其對於雙帶式傳送機系統而言,溫度較低,此就方法管理及經濟而言再次帶來優勢。
在替代具體實例中,三夾板可藉助於模製方法製造。在此情形下,將產生根據本發明之PIR發泡體之預混合反應混合物塗覆至先前配置於模具中的面層,隨後反應,以形成面板。面層可預加熱至例如< 60℃之溫度。在反應期間,模具中之溫度可藉由加熱模具來保持恆定。在諸如10分鐘至2小時之時段的一定時間之後,自模具移除成品面板。
本發明亦係關於根據本發明之發泡體在三夾板中之用途,及包含根據本發明之發泡體的三夾板。
本發明之三夾板可供用於諸如工業建築物、公共建築辦公室及行政建築、冷藏室、清潔室、農業建築、發電廠、住宅之建築中的各種應用且用於諸如冷藏車集裝箱、拖車等之運輸。
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圖1及2說明實施例中之三夾板的附著力能量。實施例
本發明將藉助於以下實施例詳細加以解釋。除非另外說明,否則實施例中之組分之所有量係指重量份。
將下表1中所指示之預混合PIR發泡體形成反應物塗覆至大小為40 cm × 40 cm × 9 cm且具有預加熱至60℃之下部金屬片的箱模具且在箱模具中發泡。在反應期間,模具中之溫度恆定地保持在60℃下。在模具中保持30 min之後,自模具移除成品三夾板。 表1 PIR發泡體之配方
所得三夾板之附著力能量根據剝離測試來量測。剝離測試可藉由使用Zwick機器(可購自BASF公司)來將底面上之10 cm × 20 cm金屬片(對於三夾板而言,底面之附著力比頂面更差)自一個側面剝離發泡體表面來進行。計算力及距離以獲得附著力能量。結果展示於圖1及表2中。 表2 所得三夾板之附著力能量
與對照組1進行比較,當使用長鏈多元醇(實施例1)、TCPP及TEP組合(實施例2)、延遲催化劑(實施例3)時,附著力能量分別改良31.6%、40.9%及28.7%。在實施例4中,藉由分別在60℃、50℃及40℃下使用表3中之配方來重複實施例1至3之過程,同時對照組2在60℃下進行。 表3 PIR發泡體之配方
量測所得三夾板之附著力能量,且結果展示於圖2及表4中,其中實施例-60意謂在60℃下,實例4-50在50℃下,實施例4-40在40℃下。 表4 所得三夾板之附著力能量
通常低溫對PIR發泡體固化有害,此係因為其將造成更差附著力。出人意料地,實施例顯示在顯著較低溫度(50℃)下附著力增大至多70%。此外,本實施例之阻燃性與對照組之阻燃性類似。
Claims (26)
- 一種聚三聚異氰酸酯發泡體,其可藉由使A)多元醇組分與具有約210至約500之NCO指數的B)聚異氰酸酯組分反應來獲得,該多元醇組分包含:A1)聚酯多元醇、A2)短鏈聚醚多元醇及A3)長鏈聚醚多元醇。
- 如請求項1所述之發泡體,其中該聚酯多元醇A1)為芳族聚酯多元醇。
- 如請求項1或2所述之發泡體,其中聚酯多元醇A1)較佳地具有約50 mg KOH/g至約750 mg KOH/g、更佳地約100 mg KOH/g至約500 mg KOH/g、甚至更佳地約150 mg KOH/g至約400 mg KOH/g、最佳地約150 mg KOH/g至約300 mg KOH/g之羥基數。
- 如請求項1至3中任一項所述之發泡體,其中該聚酯多元醇A1)之量按該等組分A)及B)之總重量計可為約1%至約35%、較佳地約5%至約30%、更佳地約15%至約25%。
- 如請求項1至4中任一項所述之發泡體,其中該短鏈聚醚多元醇A2)具有約100至約1000、較佳地約200至約900、更佳地約300至約800、最佳地約400至約600之數目平均分子量。
- 如請求項1至5中任一項所述之發泡體,其中該短鏈聚醚多元醇A2)由在二羥甲基丙烷、三羥甲基丙烷或丙三醇或乙二醇上,較佳地在乙二醇上引發之環氧乙烷及/或環氧丙烷、尤其環氧丙烷的反應產物構成。
- 如請求項1至6中任一項所述之發泡體,其中該短鏈聚醚多元醇A2)之量按該等組分A)及B)的總重量計為約1重量%至約20重量%、較佳地約1%至約10%、更佳地約1%至約6%。
- 如請求項1至7中任一項所述之發泡體,其中該長鏈多元醇A3)具有超過約1000至約5000、較佳地約2000至約5000、更佳地約3000至約5000、最佳地約3000至約4000之數目平均分子量。
- 如請求項1至8中任一項所述之發泡體,其中該長鏈聚醚多元醇A3)由在二羥甲基丙烷、三羥甲基丙烷或丙三醇上,較佳地在丙三醇上引發之環氧乙烷及/或環氧丙烷、尤其環氧乙烷及環氧丙烷的反應產物構成。
- 如請求項1至9中任一項所述之發泡體,其中該長鏈多元醇A3)之量按該等組分A)及B)的總重量計為約1%至約20%、較佳地約1%至約10%、更佳地約1%至約5%。
- 如請求項1至10中任一項所述之發泡體,其中本發明之聚異氰酸酯預聚物之NCO指數為約250至約500、更佳地約300至約500。
- 如請求項1至11中任一項所述之發泡體,其中該反應在存在催化劑的情況下進行。
- 如請求項12所述之發泡體,其中該催化劑包含延遲催化劑。
- 如請求項13所述之發泡體,其中該延遲催化劑為DBU類胺鹽。
- 如請求項12至14中任一項所述之發泡體,其中該催化劑之量在各情況下按該等組分A)及B)的總重量計為約0.1%至約5%、較佳地約0.1%至約4.5%、更佳地約0.1%至約3.0%、甚至更佳地約0.15%至約2.5%、最佳地約0.2%至約1.0%。
- 如請求項1至15中任一項所述之發泡體,其中在該反應期間使用阻燃劑。
- 如請求項16所述之發泡體,其中該阻燃劑選自含磷阻燃劑。
- 如請求項17所述之發泡體,其中該阻燃劑選自: i)乙基膦酸二乙酯(DEEP)、丙基膦酸二甲酯(DMPP)及磷酸三乙酯(TEP)、磷酸三(2-氯異丙基)酯(TCPP),且進一步較佳考慮選自乙基膦酸二乙酯(DEEP)及磷酸三乙酯(TEP)的彼等阻燃劑; ii)磷酸三(2-氯異丙基)酯(TCPP)、磷酸二苯酯甲苯酯(DPC)及/或磷酸三苯酯,特定言之為磷酸二苯酯甲苯酯; iii)磷酸銨或聚磷酸銨。
- 如請求項18所述之發泡體,其中該阻燃劑選自TEP與TCPP之組合。
- 如請求項16至19中任一項所述之發泡體,其中該阻燃劑之量在各情況下按該等組分A)及B)的總重量計為0%至約10%、較佳地約0.1%至約8.0%、更佳地約0.5%至約7.0%、甚至更佳地0.8%至約6.5%、最佳地約0.8%至約6.0%。
- 如請求項1至20中任一項所述之發泡體,其中該反應在約20℃至約60℃、更佳地約30℃至約60℃、最佳地約40℃至約60℃的溫度下進行。
- 如請求項1至20中任一項所述之發泡體,其中該聚三聚異氰酸酯發泡體可藉由使A)多元醇組分與具有約450之NCO指數的B)聚異氰酸酯組分在存在C1)阻燃劑TEP及TCPP以及呈延遲催化劑封裝形式的C2)催化劑封裝的情況下反應來獲得,在各情況下按該等組分A)及B)之總重量計,該多元醇組分包含:A1)呈約15%至約25%之量的聚酯多元醇、A2)呈約1重量%至約20重量%之量的短鏈聚醚多元醇、A3)呈約1%至約5%之量的長鏈多元醇,該等阻燃劑呈約0.8%至約6.0%之量,該催化劑封裝呈約0.2%至約1.0%的量。
- 一種如請求項1至22中任一項所述之聚三聚異氰酸酯發泡體在三夾板中之用途。
- 一種包含如請求項1至22中任一項所述之聚三聚異氰酸酯發泡體的三夾板。
- 一種製造三夾板之方法,其包含將產生如請求項1至22中任一項所述之聚三聚異氰酸酯發泡體的反應混合物塗覆至面層之步驟。
- 一種如請求項24所述之三夾板在建築及運輸中之用途。
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US20130324632A1 (en) * | 2012-05-30 | 2013-12-05 | Basf Se | Polyesterols for producing rigid polyurethane foams |
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