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CN101160385A - 具有内部聚氧化乙烯嵌段和外部聚氧化丙烯嵌段的两亲水溶性烷氧基化聚亚烷基亚胺 - Google Patents

具有内部聚氧化乙烯嵌段和外部聚氧化丙烯嵌段的两亲水溶性烷氧基化聚亚烷基亚胺 Download PDF

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CN101160385A
CN101160385A CNA2006800123471A CN200680012347A CN101160385A CN 101160385 A CN101160385 A CN 101160385A CN A2006800123471 A CNA2006800123471 A CN A2006800123471A CN 200680012347 A CN200680012347 A CN 200680012347A CN 101160385 A CN101160385 A CN 101160385A
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D·伯克
C·比特纳
A·米斯克
A·L·卡萨多多明戈斯
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Abstract

本发明涉及通式(I)的两亲水溶性烷氧基化聚亚烷基亚胺及其季铵化产物,其中变量各自定义如下:R独立地为直链或支链C2-C6亚烷基;B是分支;E是通式(II)的亚烷氧基,R1是1,2-亚丙基、1,2-亚丁基和/或1,2-异亚丁基;R2是亚乙基;R3是1,2-亚丙基;R4相互独立地为氢;C1-C4烷基;x、y、z各自是2至150,其中x+y+z之和是指亚烷基亚胺单元数,烷氧基化之前的聚亚烷基亚胺的平均分子量Mw为300至10000;m是0至2的有理数;n是6至18的有理数;p是3至12的有理数,其中0.8≤n/p≤1.0(x+y+z)1/2

Description

具有内部聚氧化乙烯嵌段和外部聚氧化丙烯嵌段的两亲水溶性烷氧基化聚亚烷基亚胺
本发明涉及通式I的新型两亲水溶性烷氧基化聚亚烷基亚胺及其季铵化产物:
Figure S2006800123471D00011
其中变量各自定义如下:
R是相同或不同的直链或支链C2-C6亚烷基;
B是分支;
E是下式的亚烷氧基单元:
R1-OmR2-OnR3-OpR4
R1是1,2-亚丙基、1,2-亚丁基和/或1,2-异亚丁基;
R2是亚乙基;
R3是1,2-亚丙基;
R4是相同或不同的基团:氢;C1-C4烷基;
x、y、z各自是2至150,其中x+y+z之和是指如下亚烷基亚胺单元数,其对应于烷氧基化之前的聚亚烷基亚胺的平均分子量Mw为300至10000;
m是0至2的有理数;
n是6至18的有理数;
p是3至12的有理数,其中0.8≤n/p≤1.0(x+y+z)1/2
除了表面活性剂外,聚合物还用作衣用洗涤剂和清洁组合物的促进去污的添加剂。已知聚合物非常适合,例如作为土壤颜料如粘土矿物或烟灰的分散剂,和作为防止已经分离的污渍再附着的添加剂。但是,这类分散剂,尤其是在低温下,基本不能从表面上去除油污。
WO-A-99/67352描述了与过氧化漂白剂相容的疏水污渍的分散剂,据说其防止在洗涤过程中分离的油污再沉降到洗过的织物上,并基于具有内部聚氧化丙烯嵌段和外部明显更大的聚氧化乙烯嵌段的烷氧基化聚乙烯亚胺。
US-A-5 565 145推荐每个直接键合到氮原子上的活性NH基团可能含有最多4个氧化丙烯单元的不带电烷氧基化聚乙烯亚胺作为非极性微粒污渍的分散剂。但是,优选的和举例说明的是只被乙氧基化或最多最初被丙氧基化(即每NH基团不超过1摩尔氧化丙烯)的聚乙烯亚胺。
这些烷氧基化聚乙烯亚胺也是亲水土壤颜料的良好分散剂,但在油污情况下没有表现出令人满意的洗涤结果。
具有内部聚氧化乙烯嵌段和外部聚氧化丙烯嵌段的聚乙烯亚胺仍然要用在衣用洗涤剂或清洁组合物中。
US-A-4 076 497公开了使用已经基于每摩尔活性NH基团总共与30摩尔氧化烯(包括至少15摩尔氧化丙烯)反应的最初乙氧基化然后丙氧基化的聚乙烯亚胺作为用分散染料将聚酯和纤维素纤维染色的助剂。但是,本发明的聚亚烷基亚胺的亚烷氧基链含有最多12个亚丙氧基单元。
DE-A-22 27 546描述了具有反向氧化烯序列的聚乙烯亚胺以及最初乙氧基化然后丙氧基化的聚乙烯亚胺作为原油乳状液的破乳剂。但是,与本发明的聚亚烷基亚胺相比,这些聚乙烯亚胺具有基于每摩尔可烷氧基化NH基团为至少105摩尔氧化乙烯的太高烷氧基化程度和1.9至4∶1的太高的氧化丙烯∶氧化乙烯摩尔比(或反过来说,0.53至0.25的太小的氧化乙烯∶氧化丙烯摩尔比)。
JP-A-2003-020585描述了在脱墨工艺中使用烷氧基化聚乙烯亚胺。除了优选只被乙氧基化或最初被乙氧基化然后被氧化乙烯/氧化丙烯混合物无规烷氧基化的聚乙烯亚胺外,还公开了基于平均分子量Mw为600且每摩尔可烷氧基化NH基团最初与100摩尔氧化乙烯然后与100摩尔氧化丙烯反应(因此与本发明的聚乙烯亚胺相比同样与大量得多的氧化烯反应)的聚乙烯亚胺的产品。
最后,EP-A-359 034公开了用于非水颜料分散体的制备和稳定化的助剂,其基于至少两种包含聚氧化烯嵌段的聚乙烯亚胺。当使用具有更高级氧化烯外部嵌段的聚乙烯亚胺时,它们总是最初被乙氧基化然后被丁氧基化的化合物,其中一些含有小的中间聚氧化丙烯嵌段。具有内部聚氧化乙烯嵌段和外部聚氧化丙烯嵌段的聚乙烯亚胺总是另外基于每摩尔活性NH基团与至少1摩尔的α-烯烃氧化物(α-C12/C14-,C16/C18-或C20-C28烯烃氧化物)反应。
本发明的目的是提供适合作为衣用洗涤剂和清洁组合物的添加剂以从织物和硬表面上去除油污的聚合物。特别地,聚合物还应该即使在低洗涤温度下也表现出良好的去污作用。
相应地,已经发现了通式I的两亲水溶性烷氧基化聚亚烷基亚胺及其季铵化产物:
Figure S2006800123471D00031
其中变量各自定义如下:
R是相同或不同的直链或支链C2-C6亚烷基;
B是分支;
E是下式的亚烷氧基单元:
R1-OmR2-OnR3-OpR4
R1是1,2-亚丙基、1,2-亚丁基和/或1,2-异亚丁基;
R2是亚乙基;
R3是1,2-亚丙基;
R4是相同或不同的基团:氢;C1-C4烷基;
x、y、z各自是2至150,其中x+y+z之和是指如下亚烷基亚胺单元数,其对应于烷氧基化之前的聚亚烷基亚胺的平均分子量Mw为300至10000;
m是0至2的有理数;
n是6至18的有理数;
p是3至12的有理数,其中0.8≤n/p≤1.0(x+y+z)1/2
本发明的烷氧基化聚亚烷基亚胺的基本性质是它们的两亲性,即它们具有疏水和亲水结构单元的平衡比率并因此首先足够疏水以吸收在油污上并与表面活性剂和衣用洗涤剂和清洁组合物的其余洗涤成分一起将它们去除,但其次也足够亲水以将分离的油污保持在洗涤和清洁液中并防止其再沉降到表面上。
通过具有内部聚氧化乙烯嵌段和外部聚氧化丙烯嵌段的如下烷氧基化聚亚烷基亚胺实现该效果,其中乙氧基化程度和丙氧基化程度不高于或低于特定极限值,且它们的比率为至少0.8并在如下范围内:其根据经验关系式n/p≤1.0(x+y+z)1/2的上限由所用聚亚烷基亚胺的分子量确定。
本发明的烷氧基化聚亚烷基亚胺的基本骨架包含通过亚烷基R连接的伯、仲和叔胺氮原子并且为无规排列的下列部分的形式:
-伯氨基部分,其将基本骨架的主链和侧链封端并且其氢原子随后被亚烷氧基单元替代:
[H2N-R和-NH2
-仲氨基部分,其氢原子随后被亚烷氧基单元替代:
叔氨基部分,其将主链和侧链支化:
Figure S2006800123471D00042
在烷基化之前,聚亚烷基亚胺具有300至10000的平均分子量Mw。伯、仲和叔氨基部分的重复单元之和x+y+z是指对应这些分子量的亚烷基亚胺单元的总数。
聚亚烷基亚胺的分子量Mw优选为500至7500,更优选为1000至6000。
连接胺氮原子的R基团可以是相同或不同的、直链或支链C2-C6亚烷基。优选的支链亚烷基是1,2-亚丙基。特别优选的亚烷基R是亚乙基。
由于在基本聚亚烷基亚胺骨架的形成中可能环化,所以基本骨架中也可能小程度上存在环氨基部分,且它们当然以与非环伯和仲氨基部分相同的方式被烷氧基化。
基本聚亚烷基亚胺骨架的伯和仲氨基的氢原子被下式的亚烷氧基单元替代:
R1-OmR2-OnR3-OpR4
在该式中,变量各自定义如下:
R1是1,2-亚丙基、1,2-亚丁基和/或1,2-异亚丁基,优选1,2-亚丙基;
R2是亚乙基;
R3是1,2-亚丙基;
R4是氢或C1-C4烷基,优选为氢;
m是0至2的有理数;其中m≠0,优选大约为1;
n是6至18的有理数;
p是3至12的有理数,其中0.8≤n/p≤1.0(x+y+z)1/2
n和p优选如下定义:
n是7至15的有理数;
p是4至10的有理数,其中0.9≤n/p≤0.8(x+y+z)1/2
n和p更优选各自如下定义:
n是8至12的有理数;
p是5至8的有理数,其中1.0≤n/p≤0.4(x+y+z)1/2
这些亚烷氧基单元的主要部分由亚乙氧基单元-(R2-O)n-和亚丙氧基单元-(R3-O)p-形成。
亚烷氧基单元还可以另外具有小比例的亚丙氧基或亚丁氧基单元-(R1-O)m-,即聚亚烷基亚胺可以最初基于存在的每摩尔NH部分与最多2摩尔,尤其是0.5至1.5摩尔,特别是0.8至1.2摩尔的少量氧化丙烯或氧化丁烯反应,即初始烷氧基化。
如果必要的话,聚亚烷基亚胺的这种改性能够降低烷氧基化时反应混合物的粘度。但是,这种改性通常不影响烷氧基化聚亚烷基亚胺的性能并因此不构成优选措施。
本发明的烷氧基化聚亚烷基亚胺还可以被季铵化。合适的季铵化程度为最多50%,特别是5至40%。季铵化优选通过引入C1-C4烷基来实现,并可以通过与相应烷基卤化物和硫酸二烷基酯反应来以常规方式进行。
季铵化可能是有利的,从而根据要使用它们的衣用洗涤剂和清洁组合物的特定组成来调整烷氧基化聚亚烷基亚胺,并实现该配方的更好的相容性和/或相稳定性。烷氧基化聚亚烷基亚胺优选不季铵化。
本发明的烷氧基化聚亚烷基亚胺可以通过已知方式制备。
一种优选程序在于最初在第一步骤中只进行聚亚烷基亚胺的初始烷氧基化。
在该步骤中,使聚亚烷基亚胺只与所用全部氧化乙烯的一部分反应,其相当于基于每摩尔NH部分为大约1摩尔氧化乙烯,或当聚亚烷基亚胺最初要基于每摩尔NH部分用最多2摩尔氧化丙烯或氧化丁烯改性时,在此最初也只与最多1摩尔的该氧化烯反应。
这种反应通常在不存在催化剂的情况下在水溶液中在70至200℃,优选80至160℃,在最多10巴,特别是最多8巴的压力下进行。
在第二步骤中,通过随后i)与剩余量的氧化乙烯反应,或在第一步骤中被更高级氧化烯改性的情况下,与所有氧化乙烯反应,和ii)与氧化丙烯反应,实现进一步烷氧基化。
进一步烷氧基化通常在碱性催化剂存在下进行。合适的催化剂的实例是碱金属和碱土金属氢氧化物,例如氢氧化钠、氢氧化钾和氢氧化钙,碱金属醇盐,特别是钠和钾C1-C4醇盐,例如甲醇钠、乙醇钠和叔丁醇钾,碱金属和碱土金属氢化物,例如氢化钠和氢化钙,以及碱金属碳酸盐,例如碳酸钠和碳酸钾。优选的是碱金属氢氧化物和碱金属醇盐,特别优选的是氢氧化钾和氢氧化钠。碱的典型用量基于聚亚烷基亚胺和氧化烯的总量为0.05至10重量%,特别是0.5至2重量%。
进一步烷氧基化可以在本体中(in substance)(方案a))或在有机溶剂中(方案b))进行。下述工艺条件可用于乙氧基化和随后的丙氧基化。
在方案a)中,在第一步骤中获得的初始烷氧基化的聚亚烷基亚胺水溶液在添加催化剂后先脱水。这可以以简单方式通过加热至80至150℃并在0.01至0.5巴的减压下蒸除水来进行。所述与氧化烯的随后反应通常在70至200℃,优选100至180℃,和在最多10巴,特别是最多8巴的压力下进行,且随后在每种情况下在大约100至160℃和恒压下连续搅拌大约0.5至4小时。
对于方案b),合适的反应介质特别是非极性和极性非质子有机溶剂。特别合适的非极性非质子溶剂的实例包括脂族和芳族烃,例如己烷、环己烷、甲苯和二甲苯。
特别合适的极性非质子溶剂的实例是醚,特别是环醚,例如四氢呋喃和二烷、N,N-二烷基酰胺,例如二甲基甲酰胺和二甲基乙酰胺,和N-烷基内酰胺,例如N-甲基吡咯烷酮。当然还可以使用这些非质子溶剂的混合物。优选的溶剂是二甲苯和甲苯。
在方案b)中,在第一步骤中获得的溶液,在添加催化剂和溶剂之后,也先脱水,其有利地通过在120至180℃的温度下,优选在温和氮气流辅助下分离出水来进行。所述与氧化烯的随后反应可以如方案a)中那样进行。
在方案a)中,烷氧基化聚亚烷基亚胺直接在本体中获得且如果需要可以转化成水溶液。在方案b)中,通常去除有机溶剂并换成水。当然也可以在本体中分离出产物。
本发明的烷氧基化聚亚烷基亚胺,作为1重量%蒸馏水溶液,具有通常≤70℃,优选≤65℃的浊点。浊点更优选为25至55℃。
本发明的烷氧基化聚亚烷基亚胺突出地适合作为衣用洗涤剂和清洁组合物的促进去污的添加剂。它们尤其在油污的情况下表现出高溶解力。特别有利的是,它们即使在低洗涤温度下也表现去污力。
本发明的烷氧基化聚亚烷基亚胺可以基于特定总组成为通常0.05至10重量%,优选0.1至5重量%,更优选0.25至2.5重量%的量添加到衣用洗涤剂和清洁组合物中。
此外,衣用洗涤剂和清洁组合物通常包含表面活性剂,且如果合适的话包含作为洗涤物质的其它聚合物、助洗剂和其它常规成分,例如共助洗剂(cobuilders)、配合剂、漂白剂、标准化试剂(standardizer)、泛灰抑制剂、染料传递抑制剂、酶和香料。
实施例
I.本发明的烷氧基化聚亚烷基亚胺的制备
实施例1
初始乙氧基化
在2升高压釜中,将900克50重量%聚乙烯亚胺5000(平均分子量Mw为5000)水溶液加热至80℃,并用氮气吹扫三次至5巴的压力。在温度升至90℃后,计量加入461克氧化乙烯至5巴。将该混合物在90℃在5巴的恒压下再搅拌1小时。通过用氮气提取,去除挥发性级分。
获得1345克基于每摩尔NH键包含1摩尔氧化乙烯的聚乙烯亚胺5000的68重量%水溶液。
a)在本体中的乙氧基化和丙氧基化
在2升高压釜中,将163克在初始乙氧基化中获得的水溶液和13.9克40重量%氢氧化钾水溶液的混合物加热至70℃。在用氮气吹扫三次至5巴的压力后,将混合物在120℃和10毫巴减压下脱水4小时。随后,在120℃计量加入506克氧化乙烯至8巴的压力。将该混合物在120℃和8巴下搅拌4小时。在解压和用氮气吹扫后,在120℃计量加入519克氧化丙烯至8巴的压力。将该混合物在120℃和8巴下再搅拌4小时。通过用氮气提取,去除挥发性级分。
获得浅棕色粘性液体形式的1178克基于每摩尔NH键包含10摩尔氧化乙烯和7摩尔氧化丙烯的聚乙烯亚胺5000(胺滴定度:0.9276毫摩尔/克;1重量%水溶液的pH值:10.67)。
b)在二甲苯中的乙氧基化和丙氧基化
在2升高压釜中,将137克在初始乙氧基化中获得的水溶液、11.8克40重量%氢氧化钾水溶液和300克二甲苯的混合物用氮气吹扫三次至5巴的压力。在175℃的套温下,使用温和氮气流辅助的水分离器在4小时内分离出存在的水。随后,在120℃计量加入428克氧化乙烯至3巴的压力。将该混合物在120℃和3巴的恒压下再搅拌2小时。然后在120℃计量加入439克氧化丙烯至3巴的压力。将该混合物在120℃和3巴下再搅拌3小时。在10毫巴的减压下去除溶剂后,用4巴蒸汽在120℃提取烷氧基化产物3小时。
获得浅棕色粘性液体形式的956克基于每摩尔NH键包含10摩尔氧化乙烯和7摩尔氧化丙烯的聚乙烯亚胺5000(胺滴定度:0.9672毫摩尔/克;1重量%水溶液的pH值:10.69)。
实施例2
在2升高压釜中,将321克在与实施例1相似的初始乙氧基化中获得的69.2重量%聚乙烯亚胺5000(基于每摩尔NH键,1摩尔氧化乙烯)水溶液和28克40重量%氢氧化钾水溶液的混合物加热至80℃。在用氮气吹扫三次至5巴的压力后,将混合物在120℃和10毫巴真空下脱水3小时。随后,在120℃计量加入1020克氧化乙烯至8巴的压力。然后将该混合物在120℃和8巴下再搅拌4小时。通过用氮气提取,去除挥发性级分。
获得棕色粘性溶液形式的1240克基于每摩尔NH键包含9.9摩尔氧化乙烯的聚乙烯亚胺5000(胺滴定度:1.7763毫摩尔/克;1重量%水溶液的pH值:11.3)。
然后将239克乙氧基化产物在用氮气吹扫三次至5巴的压力后在120℃与大约87克氧化丙烯(测量精确度+/-15克)反应至8巴的压力。然后将该混合物在120℃和8巴下搅拌4小时。通过用氮气提取,去除挥发性级分。
获得浅棕色粘性液体形式的340克基于每摩尔NH键包含9.9摩尔氧化乙烯和3.5摩尔氧化丙烯的聚乙烯亚胺5000(胺滴定度:1.2199毫摩尔/克;1重量%水溶液的pH值:11.05)。
实施例3
初始乙氧基化
在2升高压釜中,将516克聚乙烯亚胺600(平均分子量Mw为600)和10.3克水的混合物用氮气吹扫三次至5巴的压力,并加热至90℃。然后在90℃计量加入528克氧化乙烯。将该混合物在90℃在5巴的恒压下再搅拌1小时。通过用氮气提取,去除挥发性级分(尤其是水)。
获得棕色液体形式的1040克基于每摩尔NH键包含1摩尔氧化乙烯的聚乙烯亚胺600。
在本体中的乙氧基化和丙氧基化
在2升高压釜中,将86克初始乙氧基化聚乙烯亚胺600和10.8克40重量%氢氧化钾水溶液的混合物加热至80℃。在用氮气吹扫三次至5巴的压力后,将混合物在120℃和10毫巴真空下脱水2.5小时。在用氮气去除真空后,在120℃计量加入384克氧化乙烯。将该混合物在120℃再搅拌2小时。在解压和用氮气吹扫后,在120℃计量加入393克氧化丙烯。将该混合物在120℃再搅拌2小时。通过用氮气提取,去除挥发性级分。
获得浅棕色粘性液体形式的865克基于每摩尔NH键包含10摩尔氧化乙烯和7摩尔氧化丙烯的聚乙烯亚胺600(胺滴定度:1.0137毫摩尔/克;1重量%水溶液的pH值:11.15)。
实施例4
将7.3克硫酸二甲酯逐滴添加到300克在实施例1b)中获得的烷氧基化聚乙烯亚胺5000中,并在60℃在氮气下搅拌。在此过程中,温度升至70℃。在混合物在70℃再搅拌3小时后,将混合物冷却至室温。
获得棕色粘性液体形式的307克聚乙烯亚胺5000,其基于每摩尔NH键包含10摩尔氧化乙烯和7摩尔氧化丙烯并具有22%的季铵化程度(胺滴定度:0.7514毫摩尔/克)。
II.本发明的烷氧基化聚亚烷基亚胺在洗衣中的应用
为了测试它们的释污性能,在三个系列实验中,将烷氧基化聚亚烷基亚胺与表1中指定的作为模型衣用洗涤剂的表面活性剂和助洗剂一起,或与市售衣用洗涤剂一起添加到洗液中。然后在表3a、4a和5a中指定的洗涤条件下洗涤表2中所列的试验布。
通过在洗涤之前和之后对试验布进行在460纳米下的反射度测量,测定从试验布上的释污。由洗涤之前和之后的反射度值R以及白色参照棉布的反射度值通过下式计算去污性,以%表示:
Figure S2006800123471D00111
所有洗涤都×2进行。在表3b、4b和5b中的洗涤结果下列出的去污值相当于在相同条件下获得的测量平均值。作为对比列出各自没有添加聚合物时获得的值。
所有用量都基于100%活性物质。
表1:表面活性剂和助洗剂
表面活性剂1  LutensitA-LBN 50(BASF;线型C12烷基苯磺酸盐(Na盐))
表面活性剂2  PlurafacLF 401(BASF;脂肪醇烷氧基化物)
助洗剂  三聚磷酸钠
表2:试验布
 TG1  用苏丹红染色的三油精甘油酯;在5克白色棉布上有0.2克污点
 TG2  用苏丹红染色的橄榄油;在5克白色棉布上有0.2克污点
 TG3  WFK 10D(皮脂/颜料污渍布,来自WFK*)
 TG4  EMPA 118(皮脂/颜料污渍布,来自EMPA**)
 TG5  Scientific Services***Sebum
 TG6  WFK 10PF(植物油脂/颜料污渍布,来自WFK)
 TG7  CFT-CS10(在来自CFT****的棉布上具有有色黄油)
 TG8  CFT-CS 62(在来自CFT的棉布上具有有色猪油)
 *  Research Institute for Cleaning Technology,Krefeld
 **  Swiss Materials Testing and Research Institute,St.Gallen,CH
 ***  Scientific Services S/D,Inc.,Sparrow Bush,NY,USA
 ****  Center for Test Materials BV,Vlaardingen,NL
表3a:洗涤条件
仪器 Launder-O-Meter(来自Atlas,Chicago,USA)
洗涤温度 25℃
聚合物剂量 30毫克/升
衣用洗涤剂 来自表面活性剂1/助洗剂的模型衣用洗涤剂
表面活性剂剂量 300毫克/升
助洗剂剂量 200毫克/升
水硬度 2.5毫摩尔/升Ca∶Mg 3∶1
液体比率 12.5∶1
洗涤时间 30分钟
试验布 TG1和TG2试验布各自分别与每锅(pot)5克白色棉布一起洗涤
表3b:洗涤结果
聚合物  去污性[%]
 TG1  TG2
来自实施例3  42.6  38.4
无添加  38.5  32.4
表4a:洗涤条件
仪器 Launder-O-Meter(来自Atlas,Chicago,USA)
洗涤温度 25℃
聚合物剂量 25毫克/升
衣用洗涤剂 来自表面活性剂1/表面活性剂2的模型衣用洗涤剂
表面活性剂1剂量 150毫克/升
表面活性剂2剂量 50毫克/升
水硬度 1.0毫摩尔/升Ca∶Mg 3∶1
液体比率 12.5∶1
洗涤时间 30分钟
试验布 TG3、TG4、TG6、TG7和TG8污渍布各自剪成4×4厘米并缝到白色棉布上。在每种情况下,缝有TG3、TG4和TG6布的2块棉布以及缝有TG7和TG8的两块棉布一起洗涤。每次洗涤还包括5克白色棉布。
表4b:洗涤结果
聚合物  去污性[%]
 TG3  TG4  TG6  TG7  TG8
来自实施例3  29.7  8.2  48.1  6.6  3.9
无添加  29.4  6.8  47.4  5.9  2.5
表5a:洗涤条件
仪器 Launder-O-Meter(来自Atlas,Chicago,USA)
洗涤温度 25℃
聚合物剂量 (1)20毫克/升;(2)40毫克/升
衣用洗涤剂 Tide液(Procter&Gamble)
衣用洗涤剂剂量 1克/升
水硬度 1.0毫摩尔/升Ca∶Mg 3∶1
液体比率 12.5∶1
洗涤时间 30分钟
试验布 TG3、TG4、TG5和TG6污渍布各自剪成4×4厘米并缝到白色棉布上。在每种情况下,缝有污渍布的2块棉布一起洗涤。每次洗涤还包括5克白色棉布。
表5b:洗涤结果
聚合物 去污性[%]
TG3  TG4  TG5  TG6
来自实施例3(20毫克/升) 39.6  7.6  31.4  50.0
来自实施例3(40毫克/升) 40.2  8.2  32.1  50.6
无添加 37.2  5.4  28.5  44.4
洗涤试验的结果表明,添加本发明的烷氧基化聚亚烷基亚胺显著改进了从棉布上去除脂污和油污的释污性。

Claims (9)

1.通式I的两亲水溶性烷氧基化聚亚烷基亚胺及其季铵化产物:
Figure S2006800123471C00011
其中变量各自定义如下:
R是相同或不同的直链或支链C2-C6亚烷基;
B是分支;
E是下式的亚烷氧基单元:
R1-OmR2-OnR3-OpR4
R1是1,2-亚丙基、1,2-亚丁基和/或1,2-异亚丁基;
R2是亚乙基;
R3是1,2-亚丙基;
R4是相同或不同的基团:氢;C1-C4烷基;
x、y、z各自是2至150,其中x+y+z之和是指如下亚烷基亚胺单元数,其对应于烷氧基化之前的聚亚烷基亚胺的平均分子量Mw为300至10000;
m是0至2的有理数;
n是6至18的有理数;
p是3至12的有理数,其中0.8≤n/p≤1.0(x+y+z)1/2
2.根据权利要求1的烷氧基化聚亚烷基亚胺,其中R是亚乙基。
3.根据权利要求1或2的烷氧基化聚亚烷基亚胺,其中R4是氢。
4.根据权利要求1至3中任一项的烷氧基化聚亚烷基亚胺,其中n是7至15的有理数且p是4至10的有理数,其中0.9≤n/p≤0.8(x+y+z)1/2
5.根据权利要求1至4中任一项的烷氧基化聚亚烷基亚胺,其中n是8至12的有理数且p是5至8的有理数,其中1.0≤n/p ≤0.6(x+y+z)1/2
6.根据权利要求1至5中任一项的烷氧基化聚亚烷基亚胺,其中x+y+z之和是指如下亚烷基亚胺单元数,其对应烷氧基化之前的聚亚烷基亚胺的平均分子量Mw为500至7500。
7.根据权利要求1至6中任一项的烷氧基化聚亚烷基亚胺,其中x+y+z之和是指如下亚烷基亚胺单元数,其对应烷氧基化之前的聚亚烷基亚胺的平均分子量Mw为1000至6000。
8.根据权利要求1至7中任一项的烷氧基化聚亚烷基亚胺,其中存在的氮原子的最多50%被季铵化。
9.根据权利要求1至8中任一项的烷氧基化聚亚烷基亚胺,其中m是0。
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