CN102046683A - 基于聚碳酸酯-多元醇的聚氨酯-聚脲分散体 - Google Patents
基于聚碳酸酯-多元醇的聚氨酯-聚脲分散体 Download PDFInfo
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- CN102046683A CN102046683A CN200980120901.1A CN200980120901A CN102046683A CN 102046683 A CN102046683 A CN 102046683A CN 200980120901 A CN200980120901 A CN 200980120901A CN 102046683 A CN102046683 A CN 102046683A
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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Abstract
本发明涉及基于聚碳酸酯-多元醇的具有水解稳定性的新型水性聚氨酯-聚脲分散体,制备这些分散体的方法以及它们在涂料中的应用。
Description
发明背景
本发明涉及基于聚醚-聚碳酸酯-多元醇的具有水解稳定性的新型水性聚氨酯-聚脲分散体,制备这些分散体的方法以及它们在涂料中的应用。
使用水性粘结剂、特别是聚氨酯-聚脲(PU)分散体对基材进行涂布的情况越来越常见。水性PU分散体的制备是本领域技术人员已知的。
在挠性基材、特别是织物和皮革的涂布中,含溶剂的体系正日益被低溶剂含量或无溶剂的水性体系代替。聚氨酯分散体非常符合织物和皮革涂布的要求,例如对化学品的高耐受性、高机械耐受性以及高拉伸强度和挠性。
本发明的一个目的是提供一种新颖的PU分散体作为用于挠性基材的涂料组合物,该组合物不仅符合上述PU分散体的要求,而且还表现出极佳的热稳定性、水解稳定性和保色性。
已经发现,基于聚碳酸酯多元醇的离子和/或非离子型亲水水性聚氨酯-聚脲分散体(PUD)可在基材上产生具有多种上述性质的涂层。依据本发明的涂层在长时间处于升高的温度时显示出改进的抗水解性、热稳定性以及极佳的保色性。
发明概述
因此,本发明提供一种包含以下合成组分的水性聚氨酯-聚脲分散体:
I.1)一种或多种多异氰酸酯,
I.2)一种或多种聚碳酸酯多元醇,其数均分子量为1000-3000克/摩尔,羟值为18-56毫克KOH/克,OH官能度为1.8-2.2,
I.3)一种或多种分子量为62-400克/摩尔并且总共具有两个或更多个羟基和/或氨基的化合物,
I.4)任选的一种或多种具有羟基或氨基的化合物,
I.5)一种或多种具有异氰酸酯活性的离子或潜在离子亲水化化合物,以及
I.6)任选的一种或多种具有异氰酸酯活性的非离子亲水化化合物,
其中,以组分I.2)的总量为基准计,多元醇组分I.2)含60重量%-100重量%的基于聚(1,4-丁二醇)的聚碳酸酯多元醇;前提是该聚碳酸酯多元醇并不是基于聚(1,4丁二醇)多元醇。
本发明还提供了一种制备本发明的水性聚氨酯-聚脲分散体的方法,该方法包括:
a)使以下组分反应:
I.1)一种或多种多异氰酸酯,
I.2)一种或多种聚碳酸酯多元醇,其数均分子量为1000-3000克/摩尔,羟值为18-56毫克KOH/克,OH官能度为1.8-2.2,
I.3)一种或多种分子量为62-400克/摩尔并且总共具有两个或更多个羟基和/或氨基的化合物,
I.4)任选的一种或多种具有羟基或氨基的化合物,
I.5)一种或多种具有异氰酸酯活性的离子或潜在离子亲水化化合物,以及
I.6)任选的一种或多种具有异氰酸酯活性的非离子亲水化化合物,
制得无脲基的异氰酸酯官能预聚物,异氰酸酯基与异氰酸酯活性基团的摩尔比为1.0-3.5;
b)将该反应产物分散在水中;以及
c)在分散在水中之前、期间或之后,对剩余的异氰酸酯基进行氨基官能增链反应或链终止反应,其中用于增链的化合物的异氰酸酯活性基团与预聚物的游离异氰酸酯基之间的当量比为40%-150%。
优选实施方式的详述
除非另有说明,说明书和权利要求书中所用的所有“分子量”指数均分子量。
适合作为组分I.1的多异氰酸酯是本领域中已知的芳族、芳脂族、脂族或脂环族多异氰酸酯。它们可以单独使用,或者以它们相互之间的任何所需的混合物形式使用。
合适的多异氰酸酯的例子是1,4-丁二异氰酸酯、1,6-己二异氰酸酯(HDI)、异佛尔酮二异氰酸酯(IPDI)、2,2,4-和/或2,4,4-三甲基-1,6-己二异氰酸酯、同分异构的二(4,4’-异氰酸酯基环己基)甲烷或者它们的具有任何所需异构体含量的混合物、1,4-环己烷二异氰酸酯、1,4-苯二异氰酸酯、2,4-和/或2,6-甲苯二异氰酸酯、1,5-萘二异氰酸酯、2,4’-或4,4’-二苯基甲烷二异氰酸酯、1,3-和1,4-二(2-异氰酸酯基丙-2-基)苯(TMXDI)和1,3-二(异氰酸酯基甲基)苯(XDI)。相应地,还可以使用官能度≥2的多异氰酸酯。这些多异氰酸酯包括具有脲二酮(uretdione)、异氰脲酸酯、氨基甲酸酯、脲基甲酸酯、缩二脲、亚氨基噁二嗪二酮和/或噁二嗪三酮结构的改性的二异氰酸酯,以及每个分子中具有多于2个NCO基团的未改性的多异氰酸酯,例如4-异氰酸酯基甲基辛烷1,8-二异氰酸酯(壬烷三异氰酸酯)或三苯基甲烷4,4’,4”-三异氰酸酯。
所述多异氰酸酯或多异氰酸酯混合物优选是上述种类的、只包含与脂族基团和/或脂环族基团连接的异氰酸酯基的多异氰酸酯或多异氰酸酯混合物,其平均官能度为2-4,优选为2-2.6,更优选为2-2.4。
特别优选的是1,6-己二异氰酸酯、异佛尔酮二异氰酸酯、同分异构的二(4,4’-异氰酸酯基环己基)甲烷,以及它们的混合物。
合适的聚碳酸酯I.2)可通过碳酸衍生物如碳酸二苯酯、碳酸二甲酯或光气与二醇反应制得。这类二醇的合适例子包括乙二醇、1,2-和1,3-丙二醇、1,3-和1,4-丁二醇、1,6-己二醇、1,8-辛二醇、新戊二醇、1,4-二羟基甲基环己烷、2-甲基-1,3-丙二醇、2,2,4-三甲基-1,3-戊二醇、双丙甘醇、聚丙二醇、二丁二醇、聚丁二醇、双酚A、四溴双酚A,以及内酯改性的二醇。二醇组分优选包含40重量%-100重量%的己二醇,优选的是1,6-己二醇和/或己二醇衍生物。更优选的二醇组分包括除了端OH基外还具有醚基或酯基的例子。
羟基聚碳酸酯应当基本是线型的。但是,由于引入了多官能组分,尤其是低分子量多元醇,它们也可以略微支化。合适的例子包括丙三醇、三羟甲基丙烷、1,2,6-己三醇、1,2,4-丁三醇、三羟甲基丙烷、季戊四醇、对环己二醇、甘露醇、山梨糖醇、甲基糖苷或1,3,4,6-二失水己糖醇。
一般说来,用于合成聚氨酯树脂的低分子量多元醇I.3)具有使聚合物链硬化和/或支化的作用。分子量优选为62-299克/摩尔。合适的多元醇I.3)可以包含脂族、脂环族或芳族基团。所述低分子量多元醇可以例如是每个分子中具有最多约20个碳原子的低分子量多元醇,例如乙二醇、二甘醇、三甘醇、1,2-丙二醇、1,3-丙二醇、1,4-丁二醇、1,3-丁二醇、环己二醇、1,4-环己烷二甲醇、1,6-己二醇、新戊二醇、氢醌二羟乙基醚、双酚A(2,2-二(4-羟基苯基)丙烷)、氢化双酚A(2,2-二(4-羟基环己基)丙烷),还有三羟甲基丙烷、丙三醇或季戊四醇、它们的混合物、任选的其他低分子量多元醇I.3)。还可以使用酯二醇,例如α-羟基丁基-ε-羟基己酸酯、ω-羟基己基-γ-羟基丁酸酯、己二酸β-羟基乙基酯或对苯二甲酸二(β-羟基乙基)酯。优选的合成组分ii)是1,2-乙二醇、1,4-丁二醇、1,6-己二醇和2,2-二甲基丙烷-1,3-二醇。特别优选的是1,4-丁二醇和1,6-己二醇。
可以类似地使用二胺或多胺以及酰肼作为组分I.3),例如乙二胺、1,2-和1,3-二氨基丙烷、1,4-二氨基丁烷、1,6-二氨基己烷、异佛尔酮二胺、2,2,4-和2,4,4-三甲基-1,6-己二胺的异构体混合物、2-甲基-1,5-戊二胺、二亚乙基三胺、1,3-和1,4-苯二甲胺、α,α,α’,α’-四甲基-1,3-和-1,4-苯二甲胺和4,4-二氨基二环己基甲烷、二甲基乙二胺、肼或己二酰肼。
原则上还适合作为组分I.3)的化合物包含对NCO基团具有不同反应活性的活性氢,例如除了伯氨基之外还包含仲氨基的化合物,或者除了氨基(伯或仲)之外还包含OH基团的化合物。这些化合物的例子是例如3-氨基-1-甲基氨基丙烷、3-氨基-1-乙基氨基丙烷、3-氨基-1-环己基氨基丙烷、3-氨基-1-甲基氨基-丁烷之类的伯/仲胺,以及烷醇胺例如N-氨基乙基乙醇胺、乙醇胺、3-氨基丙醇、新戊醇胺,特别优选二乙醇胺。在制备本发明的PU分散体时,可以使用它们作为增链剂和/或链终止剂。
本发明的PU分散体还可以任选包含在各情况下位于链的末端并且封闭所述末端的单元I.4)。这些单元衍生自对NCO基团具有反应活性的单官能化合物,例如单胺,特别是单仲胺,或者单醇。所述单官能化合物可以是例如乙醇、正丁醇、乙二醇单丁基醚、2-乙基己醇、1-辛醇、1-十二烷醇、1-十六烷醇、甲胺、乙胺、丙胺、丁胺、辛胺、月桂胺、硬脂胺、异壬氧基丙胺、二甲胺、二乙胺、二丙胺、二丁胺、N-甲基氨基丙胺、二乙基(甲基)氨基丙胺、吗啉、哌啶和/或它们的适当取代的衍生物,由二伯胺和单羧酸形成的酰胺胺、二伯胺的单酮亚胺(monoketime)、伯胺/叔胺,例如N,N-二甲基氨基丙胺等。
离子或潜在离子亲水化化合物I.5)是指具有以下性质的所有化合物:包含至少一个异氰酸酯活性基团以及至少一个例如为-COOY、-SO3Y、-PO(OY)2(Y例如为H、NH4 +、金属阳离子)、-NR2、-NR3 +(R=H、烷基、芳基)的官能团,它们与水性介质互相作用达到依赖于pH值的解离平衡,从而可以携带负性、正性或中性电荷。优选的异氰酸酯活性基团是羟基或氨基。
符合组分I.5)定义的合适的离子或潜在离子亲水化化合物是例如:单-和二-羟基羧酸、单-和二-氨基羧酸、单-和二-羟基磺酸、单-和二-氨基磺酸,还有单-和二-羟基膦酸、单-和二-氨基膦酸,以及它们的盐,例如二羟甲基丙酸、二羟甲基丁酸、羟基新戊酸、N-(2-氨基乙基)-β-丙氨酸、2-(2-氨基乙基氨基)乙磺酸、乙二胺-丙基-或-丁基磺酸、1,2-或1,3-丙二胺-β-乙磺酸、苹果酸、柠檬酸、乙醇酸、乳酸、甘氨酸、丙氨酸、牛磺酸、赖氨酸、3,5-二氨基苯甲酸、IPDI与丙烯酸的加合物(EP-A 0 916 647,实施例1)及其碱金属和/或铵盐;例如DE-A 2 446 440(第5-9页,通式I-III)中所述的亚硫酸氢钠与丁-2-烯-1,4-二醇的加合物、聚醚磺酸盐、2-丁烯二醇和NaHSO3的丙氧基化加合物,以及含有可以转化成阳离子基团的单元(例如基于胺的单元)的化合物例如N-甲基二乙醇胺,作为亲水性合成组分。还可以使用环己基氨基丙磺酸(CAPS)(例如在WO-A 01/88006中所述),作为符合组分I.5)的定义的化合物。
优选的离子或潜在离子化合物I.5)是具有羧基或羧酸根和/或磺酸根和/或铵基的化合物。特别优选的离子化合物I.5)是包含羧基和/或磺酸根作为离子或在潜离子基团的化合物,例如N-(2-氨基乙基)-β-丙氨酸的盐、2-(2-氨基乙基氨基)乙磺酸的盐或IPDI和丙烯酸的加合物(EP-A 0 916 647,实施例1)的盐,以及二羟甲基丙酸的盐。
符合组分I.6)定义的合适的非离子亲水化化合物是例如包含至少一个羟基或氨基的聚氧化烯醚。这些聚醚包含30重量%-100重量%的衍生自环氧乙烷的单元。
用于引入含环氧乙烷单元的端部亲水链的亲水性合成组分I.6)优选是通式(I)的化合物:
H-Y′-X-Y-R (I)
其中:
R是具有1-12个碳原子的单价烃基,优选是具有1-4个碳原子的未取代烷基,
X是具有5-90个、优选20-70个链组成部分的聚环氧烷链,所述链组成部分包括至少40%、优选至少65%的环氧乙烷单元,除了环氧乙烷单元外,还包括环氧丙烷、环氧丁烷或氧化苯乙烯单元,在后面的这些单元中优选的是环氧丙烷单元,和
Y/Y’是氧或-NR′-,其中R′符合R的定义或者是氢。
特别优选的合成组分I.6)是环氧乙烷与环氧丙烷的共聚物,其中环氧乙烷的质量分数大于50%,更优选为55%至89%。
在一个优选的实施方式中,用作合成组分I.6)的化合物的分子量至少为400克/摩尔,优选至少为500克/摩尔,更优选为1200-4500克/摩尔。
优选的是使用5重量%-30重量%的组分I.1),共60重量%-90重量%的组分I.2),共0.5重量%-30重量%的组分I.3)和I.4),0.1重量%-5重量%的组分I.5),0-10重量%的组分I.6),组分I.5)和I.6)的总和为0.1重量%-15重量%,所有组分的总和等于100重量%。
特别优选的是使用5重量%-25重量%的组分I.1),共65重量%-85重量%的组分I.2),共0.5重量%-25重量%的组分I.3)和I.4),0.1重量%-4重量%的组分I.5),0-10重量%的组分I.6),组分I.5)和I.6)的总和为0.1重量%-14重量%,所有组分的总和等于100重量%。
特别优选的是使用13重量%-20重量%的组分I.1),共65重量%-80重量%的组分I.2),共0.5重量%-14重量%的组分I.3)和I.4),0.1重量%-3.5重量%的组分I.5),1重量%-6重量%的组分I.6),组分I.5)和I.6)的总和为0.1重量%-13.5重量%,所有组分的总和等于100重量%。
制备水性PU分散体(I)的过程可以在均相中分一个或多个阶段进行,或者在多阶段反应的情况下,部分地在分散相中进行。I.1)-I.6)完全或部分地进行加聚反应之后,再进行分散、乳化或溶解步骤。然后,任选在分散相中进一步进行加聚或改性反应。
为了制备本发明的水性PU分散体,可以使用本领域中已知的所有方法,例如预聚物混合法、丙酮法或熔体分散法。优选通过丙酮法制备本发明的PU分散体。
为了通过丙酮法制备PU分散体(I),通常组分I.2)-I.6)(应不含任何伯氨基或仲氨基)以及用于制备异氰酸酯官能聚氨酯预聚物的多异氰酸酯组分I.1),通常作为初始进料整体或部分加入,并且任选地用对异氰酸酯基团呈惰性的水混溶性溶剂进行稀释,将该初始进料加热到50-120℃的温度。为了加快异氰酸酯加成反应,可以使用聚氨酯化学中已知的催化剂。优选的是二月桂酸二丁基锡。
合适的溶剂是普通脂族酮官能溶剂,例如丙酮或丁酮,这些溶剂不仅可以在制备反应开始时添加,还可以任选随后成比例地添加。优选的是丙酮和丁酮。还可以类似地使用其他溶剂,例如二甲苯、甲苯、环己烷、乙酸丁酯、乙酸甲氧基丙酯、具有醚单元或酯单元的N-甲基吡咯烷酮溶剂,它们可以完全或部分地蒸馏除去,或者可以全部保留在分散体中。
然后,可以计量加入在反应开始时没有加入的组分I.1)-I.6)中的任何组分。
在聚氨酯预聚物的制备中,异氰酸酯基与异氰酸酯活性基团的摩尔比为1.0-3.5,优选为1.2-3.0,更优选为1.3-2.5。
组分I.1)-I.6)形成预聚物的反应部分或完全地进行,但是优选完全进行。这样,以本体(无溶剂)或溶液形式得到含游离异氰酸酯基的聚氨酯预聚物。
聚氨酯预聚物的制备可同时伴随进行阴离子和/或阳离子分散基团部分或全部形成盐的反应,或者随后再进行此反应,如果该反应在起始分子中还没有进行的话。
对于阴离子基团的情况,可以为了这个目的使用叔胺之类的碱,例如每个烷基中含有1-12个、优选1-6个碳原子的三烷基胺。这些碱的例子是三甲胺、三乙胺、甲基二乙胺、三丙胺、N-甲基吗啉、甲基二异丙胺、乙基二异丙胺和二异丙基乙胺。所述烷基基团中还可以例如带有羟基,例如二烷基单烷醇胺、烷基二烷醇胺和三烷醇胺。还可以任选使用无机碱作为中和剂,例如氢氧化铵或氢氧化钠和/或氢氧化钾。优选的是三乙胺、三乙醇胺、二甲基乙醇胺或二异丙基乙胺。
碱的摩尔量是阴离子基团的摩尔量的50%-125%、优选70%-100%。
对于阳离子基团的情况,使用硫酸二甲酯或琥珀酸或磷酸。中和反应也可以与分散步骤同时发生,这时,分散用的水中已经包含有中和剂。
如果制得的预聚物还没有溶解,或者只是部分地溶解,则可以随后在进一步的处理步骤中使用丙酮或丁酮之类的脂族酮进行溶解。
随后,可以是NH2-官能和/或是NH-官能组分与剩余的异氰酸酯基团反应。在分散之前、分散过程中,该增链/链终止反应可以在溶剂中进行,或者在分散之后,在水中进行。优选在分散在水中之前进行增链反应。
使用符合I.5)定义的、具有NH2基团或NH基团的化合物进行增链反应时,优选在分散操作之前对预聚物进行增链反应。
增链程度也就是用于增链的化合物的NCO活性基团与预聚物的游离NCO基团之间的当量比再乘以100%,其值为40%-150%,优选为50%-120%,更优选为60%-120%。
胺类组分[I.3),I.4),I.5)]可以任选地以水稀释的或溶剂稀释的形式用于本发明方法中,可以单独使用或作为混合物使用,任何加料顺序都可以。
如果水或有机溶剂用作稀释剂,则稀释剂含量优选为70重量%至95重量%。
在链增长之后,由预聚物制备PU分散体。为了达到这个目的,在强烈剪切条件(例如剧烈搅拌)下,将溶解并且发生了链增长的聚氨酯聚合物引入分散用的水中,或者相反,在搅拌条件下将分散用的水引入预聚物溶液中。优选将水引入溶解的预聚物中。
随后,一般通过蒸馏除去分散步骤之后仍然存在于分散体中的溶剂。还可以在分散的过程中除去这些溶剂。
PU分散体的固体含量为20重量%-70重量%、优选为30重量%-65重量%。
本发明的PU分散体可以包含抗氧化剂和/或光稳定剂和/或其他辅助剂和添加剂,例如乳化剂、消泡剂、增稠剂。最后,还可以存在填料、增塑剂、颜料、碳黑溶胶和硅溶胶、铝分散体、粘土分散体和石棉分散体、流动控制剂或触变剂。根据本发明的PU分散体的所需性质和预期用途,最终产品中可以含有占总干重最高为70%的这些填料。
本发明还提供包含本发明聚氨酯-聚脲分散体的涂料。
本发明还提供本发明的聚氨酯-聚脲分散体作为涂料来制备涂布基材的用途。
本发明的聚氨酯-聚脲分散体也适合于制备上胶体系或粘合剂体系。
合适基材的例子包括机织和无纺织物、皮革、纸张、硬纤维、稻草、纸张样材料、木材、玻璃、各种塑料、陶瓷、石材、混凝土、沥青、瓷器、金属、玻璃纤维或碳纤维。优选的基材为挠性基材,例如织物、皮革、塑料、金属基材和玻璃纤维或碳纤维,特别优选的是织物和皮革。
本发明还提供被包含本发明聚氨酯-聚脲分散体的涂料涂布的基材。
本发明的PU分散体是稳定、可储存并且可运输的,可以在随后的任意时刻进行加工。本发明的PU分散体可以在120-150℃的较低温度下、在2-3分钟内固化,形成具有极佳湿粘结强度的涂层。
由于本发明的PU分散体结合了极佳的可拉伸性和极高的拉伸强度,所以特别适合应用于织物涂布和皮革涂布领域,即使是在水解条件下。
实施例
使用的原料
实施例1
将279.2克Desmophen C-2200和14.9克聚醚LB 25的混合物与35.6克Desmodur I和26.9克Desmodur H在70C混合,加热到105C,并在105C搅拌,直到NCO值保持在4.13%(理论值为4.18%)。在105C,用631.7克丙酮溶解预聚物,搅拌20分钟。在42C,在6分钟内加入1.1克水合肼、6.8克二氨基磺酸盐和25克水的混合物,搅拌10分钟。在40C,在15分钟内加入12.7克IPDA和63.6克水的混合物,搅拌10分钟。在40C,在15分钟内加入278.6克水,混合5分钟,然后加入2.8克Irganox 1010和2.8克Tinuvin 765。将该混合物混合10分钟,然后蒸馏丙酮。最终的分散体通过50微米过滤器过滤。
得到具有以下特征的分散体:固体含量为52.8%(麦特乐湿度分析仪(Mettler moisture Analyzer)HR 73,方法14-007),在23C的粘度为120cps(布氏型(Brookfield model)RVT,心轴#3,100rpm,方法15-003),pH为7.6(费希尔型(Fisher model)AB-15,方法14-003),平均粒度为0.604微米(荷瑞巴粒度分析仪(Horiba particle size Analyzer),型号LA-910,方法04-003)。
对比例1
阴离子脂族C4聚醚聚碳酸酯聚氨酯分散体,固体含量为60%,具有以下物理性质:100%的模量=350psi,拉伸强度=3500psi,在23C的粘度(4毫米杯,依据AFAM 2008/105,0304-00D方法)<90秒,例如Impranil DLU(勒沃库森的拜尔材料科学股份公司(Bayer AG,Leverkusen))。
对比例2
阴离子脂族聚酯聚氨酯分散体,固体含量为40%,具有以下物理性质:100%的模量=300psi,拉伸强度=2900psi,在23C的粘度(4毫米杯,依据AFAM 2008/105,0304-00D方法)<70秒,例如Impranil DLN(勒沃库森的拜尔材料科学股份公司)。
物理测试
性质 | 实施例1 | DLU | DLN | |
LP500001 | LP70006 | |||
拉伸 | 初始 | 5009 | 4070 | 2688 |
强度,psi | 1周HS | 6203 | 4070 | 408 |
2周HS | 4992 | 3854 | 192 | |
1周125C | 3491 | 4535 | 无 | |
伸长,% | 初始 | 351 | 482 | 648 |
1周HS | 384 | 483 | 647 | |
2周HS | 366 | 485 | 92 | |
1周125C | 508 | 544 | 无 | |
100%模量 | 初始 | 443 | 440 | 416 |
1周HS | 478 | 440 | 248 | |
2周HS | 446 | 401 | 无 | |
1周125C | 300 | 370 | 无 | |
黄色指数 | 1周 | 7.5 | 59.9 | 27.1 |
在125C | (3天) |
测试结论
根据上表所示的结果可以得出这样的结论:与商购的分散体如Impranil DLU和Impranil DLN相比,基于100%聚碳酸酯的分散体具有改进的水解稳定性和保色性(在尼龙类织物上)。使用C4聚醚聚碳酸酯二醇制备的Impranil DLU表现出极佳的水解稳定性,但是在尼龙类织物上表现出较差的保色性。使用聚酯二醇制备的Impranil DLN具有较差的水解稳定性和较差的保色性。
虽然在前文中为了说明起见,对本发明进行了详细的描述,但应理解,这些详细描写仅仅是为了说明,在不偏离本发明的精神和范围的情况下,本领域技术人员可对其进行修改,本发明仅由权利要求书限定。
Claims (7)
1.一种包含以下合成组分的水性聚氨酯-聚脲分散体:
I.1)一种或多种多异氰酸酯,
I.2)一种或多种聚碳酸酯多元醇,其数均分子量为1000-3000克/摩尔,羟值为18-56毫克KOH/克,OH官能度为1.8-2.2,
I.3)一种或多种分子量为62-400克/摩尔并且总共具有两个或更多个羟基和/或氨基的化合物,
I.4)任选的一种或多种具有羟基或氨基的化合物,
I.5)一种或多种具有异氰酸酯活性的离子或潜在离子亲水化化合物,以及
I.6)任选的一种或多种具有异氰酸酯活性的非离子亲水化化合物,
其中,以合成组分的总重量为基准计,该分散体包含60重量%-90重量%的组分I.2);前提是该聚碳酸酯多元醇并不是基于聚(1,4-丁二醇)多元醇。
2.如权利要求1所述的水性聚氨酯-聚脲分散体,其特征在于,所述分散体包含5重量%-40重量%的组分I.1),共60重量%-90重量%的组分I.2),共0.5重量%-20重量%的组分I.3)和I.4),0.1重量%-5重量%的组分I.5),0-20重量%的组分I.6),其中组分I.5)和I.6)的总和为0.1重量%-25重量%,所有组分的总和等于100重量%。
3.一种制备如权利要求1所述的水性聚氨酯-聚脲分散体的方法,其包括:
a)使以下组分反应:
I.1)一种或多种多异氰酸酯,
I.2)一种或多种聚碳酸酯多元醇,其数均分子量为1000-3000克/摩尔,羟值为18-56毫克KOH/克,OH官能度为1.8-2.2,
I.3)一种或多种分子量为62-400克/摩尔并且总共具有两个或更多个羟基和/或氨基的化合物,
I.4)任选的一种或多种具有羟基或氨基的化合物,
I.5)一种或多种具有异氰酸酯活性的离子或潜在离子亲水化化合物,
I.6)任选的一种或多种具有异氰酸酯活性的非离子亲水化化合物,
制得无脲基的异氰酸酯官能预聚物,异氰酸酯基与异氰酸酯活性基团的摩尔比为1.0-3.5;
b)将该反应产物分散在水中;以及
c)在分散在水中之前、期间或之后,对剩余的异氰酸酯基进行氨基官能增链反应或链终止反应,其中用于增链的化合物的异氰酸酯活性基团与预聚物的游离异氰酸酯基之间的当量比为40%-150%。
4.包含如权利要求1所述的聚氨酯-聚脲分散体的涂料。
5.一种制备涂布基材的方法,该方法包括将如权利要求4所述的涂料施涂到基材上。
6.如权利要求5所述的方法,其特征在于,所述基材选自织物和皮革。
7.涂布了如权利要求4所述的涂料的基材。
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US13046808P | 2008-05-30 | 2008-05-30 | |
US61/130,468 | 2008-05-30 | ||
PCT/US2009/003239 WO2009148529A2 (en) | 2008-05-30 | 2009-05-27 | Polyurethane-polyurea dispersions based on polycarbonate-polyols |
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US (1) | US20110281998A1 (zh) |
EP (1) | EP2285856A4 (zh) |
JP (1) | JP5586589B2 (zh) |
KR (1) | KR20110011648A (zh) |
CN (1) | CN102046683A (zh) |
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Cited By (2)
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CN104327696A (zh) * | 2014-10-21 | 2015-02-04 | 上海东方雨虹防水技术有限责任公司 | 一种聚碳酸酯多元醇型喷涂聚脲弹性体涂料及制备方法 |
CN107108830A (zh) * | 2014-12-26 | 2017-08-29 | 旭化成株式会社 | 多异氰酸酯组合物及其制造方法、封端多异氰酸酯组合物及其制造方法、树脂组合物、以及固化物 |
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WO2012069414A1 (en) * | 2010-11-25 | 2012-05-31 | Bayer Materialscience Ag | Polyurethane resin with high carbonate group content |
CA2951466C (en) * | 2014-07-02 | 2019-03-05 | Basf Coatings Gmbh | Two-component coating compositions and coatings produced therefrom for improving erosion resistance |
JP7129819B2 (ja) * | 2018-05-14 | 2022-09-02 | 東日本旅客鉄道株式会社 | 台車用カバー |
EP3825338A1 (en) | 2019-11-20 | 2021-05-26 | Covestro Intellectual Property GmbH & Co. KG | Polyurethane-urea dispersions based on polycarbonate-polyols as coating compositions |
CN113773732B (zh) * | 2021-09-10 | 2022-05-17 | 苏州己申隆新材料科技有限公司 | 一种风电叶片用防覆冰超滑聚脲涂层及其制备方法和应用 |
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JPH0532756A (ja) * | 1990-09-14 | 1993-02-09 | Asahi Chem Ind Co Ltd | 人工皮革用ポリウレタンエマルジヨン |
DE4222530A1 (de) * | 1992-07-09 | 1994-01-13 | Hoechst Ag | Polyurethan-Dispersionen |
JP3297503B2 (ja) * | 1993-07-26 | 2002-07-02 | 旭化成株式会社 | ポリウレタンエマルジョン |
DE4236569A1 (de) * | 1992-10-29 | 1994-05-05 | Bayer Ag | Wäßrige Beschichtungsmittel und ihre Verwendung zur Erzeugung wasserdampfdurchlässiger Beschichtungen |
DE19643802A1 (de) * | 1996-10-30 | 1998-05-07 | Herberts Gmbh | Wäßrige Bindemitteldispersion für physikalisch trocknende Überzugsmittel und deren Verwendung |
US6455632B1 (en) * | 2000-12-05 | 2002-09-24 | Bayer Corporation | Aqueous polyurethane dispersions containing secondary amide groups and their use in one-component thermoset compositions |
JP4416147B2 (ja) * | 2000-12-13 | 2010-02-17 | 旭化成ケミカルズ株式会社 | ポリウレタンエマルジョンおよびそれを用いて製造する合成皮革及び人工皮革 |
DE10251797A1 (de) * | 2002-11-07 | 2004-05-19 | Bayer Ag | Polyurethanharz mit hohem Carbonatgruppengehalt |
CA2538955A1 (en) * | 2003-09-18 | 2005-04-21 | Bayer Materialscience Ag | Aqueous adhesive dispersions |
DE102004002526A1 (de) * | 2004-01-16 | 2005-08-04 | Bayer Materialscience Ag | Thermovergilbungsstabile Polyurethan-Polyharnstoff Dispersionen |
DE102004060139A1 (de) * | 2004-12-13 | 2006-06-29 | Bayer Materialscience Ag | Festkörperreiche Polyurethanpolyharnstoff-Dispersionen |
DE102006002156A1 (de) * | 2006-01-17 | 2007-07-19 | Bayer Materialscience Ag | Polyurethan-Polyharnstoff-Dispersionen auf Basis von Polyether-Polycarbonat-Polyolen |
US7452525B1 (en) * | 2007-08-08 | 2008-11-18 | Yuliya Berezkin | Polyurethane dispersions based on polycarbonate polyols and suitable for use in personal care products |
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2009
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- 2009-05-27 US US12/994,584 patent/US20110281998A1/en not_active Abandoned
- 2009-05-27 WO PCT/US2009/003239 patent/WO2009148529A2/en active Application Filing
- 2009-05-27 KR KR1020107026722A patent/KR20110011648A/ko not_active Application Discontinuation
- 2009-05-27 JP JP2011511632A patent/JP5586589B2/ja not_active Expired - Fee Related
- 2009-05-27 CN CN200980120901.1A patent/CN102046683A/zh active Pending
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104327696A (zh) * | 2014-10-21 | 2015-02-04 | 上海东方雨虹防水技术有限责任公司 | 一种聚碳酸酯多元醇型喷涂聚脲弹性体涂料及制备方法 |
CN107108830A (zh) * | 2014-12-26 | 2017-08-29 | 旭化成株式会社 | 多异氰酸酯组合物及其制造方法、封端多异氰酸酯组合物及其制造方法、树脂组合物、以及固化物 |
CN107108830B (zh) * | 2014-12-26 | 2020-02-11 | 旭化成株式会社 | 多异氰酸酯组合物及其制造方法、封端多异氰酸酯组合物及其制造方法、树脂组合物、以及固化物 |
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US20110281998A1 (en) | 2011-11-17 |
EP2285856A4 (en) | 2014-07-23 |
JP2011523672A (ja) | 2011-08-18 |
WO2009148529A2 (en) | 2009-12-10 |
WO2009148529A3 (en) | 2010-03-04 |
TWI461453B (zh) | 2014-11-21 |
KR20110011648A (ko) | 2011-02-08 |
EP2285856A2 (en) | 2011-02-23 |
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