CN1038658A - 底层涂有氨基官能团硅烷的聚酯薄膜及其薄膜层压制品 - Google Patents

底层涂有氨基官能团硅烷的聚酯薄膜及其薄膜层压制品 Download PDF

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CN1038658A
CN1038658A CN89104241A CN89104241A CN1038658A CN 1038658 A CN1038658 A CN 1038658A CN 89104241 A CN89104241 A CN 89104241A CN 89104241 A CN89104241 A CN 89104241A CN 1038658 A CN1038658 A CN 1038658A
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霍沃得·威尼·斯沃福特
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Abstract

公开了涂有一层水解的氨基硅烷底剂的取向的聚酯薄膜。这种聚酯薄膜显示出对其它聚合物材料优良的粘合性,易与其它聚合物薄膜层合。

Description

本发明涉及在一侧或两侧涂有涂底剂组合物的取向的聚酯薄膜,所说的涂底剂组合物含有一种水解了的氨基官能团硅烷,它使这种薄膜更容易与其它聚合物薄膜材料如聚乙烯醇缩丁醛、聚烯烃和其它聚合物层合。
本申请与申请人的共同未决的美国专利申请号123,847(申请日:1987年11月23日)和申请号148,818(申请日:1988年1月27日,DF1213)有关。
取向的聚酯薄膜、尤其是由聚对苯二甲酸乙二醇酯(PET)构成的双轴取向薄膜广泛地用作包装材料或作为缩微胶片、复制胶片、校色胶片等的片基。这种薄膜具有良好的光学透明度和韧性,使这种材料特别适用于这类应用。
近来,已发现聚酯薄膜已推广用作贴合到固体基体、特别是透明基体上成透明和半透明层,例如这类薄膜可贴合到窗子和观察或照明媒介物中以控制其透明度。另一种更新的应用涉及在汽车窗用玻璃制品(如风挡,后窗,遮阳板等)的构造物中以及建筑安全玻璃中用作抗撕层。简单的汽车窗用玻璃制品之一可由一层挠性的聚乙烯醇缩丁醛内层组成,它的一边夹的是玻璃,另一边夹的是高膜量薄膜(如聚酯膜)。
用于汽车玻璃夹层构件中的聚乙烯醇缩丁醛层是为了在冲击情况下防止玻璃破碎(所谓安全玻璃),而处于玻璃内面的聚酯薄膜的作用是为了防止由于交通事故使头或身体与汽车玻璃的硬冲击造成玻璃破碎所引起的皮肤划伤。这类构件和聚酯薄膜贴合到汽车玻璃面上的技术在美国共同未决的申请号148,818(申请日:1988年1月27日,DF1213)中有描述,在此将其公开内容援引以供参考。
上述参考的共同未决申请讲述了用增塑的聚乙烯醇缩丁醛(PVB)作粘合层促进聚酯薄膜与玻璃的粘合。尽管PVB与玻璃粘合得非常好,但它与聚酯薄膜之间的粘合强度不是很高,尤其是在冰点温度以下。按美国专利3,900,673透露,已采用电晕放电处理和火焰处理来提高PVB片材与聚酯薄膜之间的粘合力。明胶和PVPC涂层以及丙烯酸胶乳涂层也能提供聚酯薄膜和PVB之间的粘合力。但是,这些提供粘合力的方法中,没有一种能在汽车车窗和建筑物普遍要经受的冰点以下的温度提供粘合力。据信,聚酯薄膜与PVB粘合力的任何改善都可改进聚酯薄膜作为抗撕防护层的功用。
在本技术领域中,已知道多种涂底剂用来涂覆聚酯薄膜表明,以改善薄膜对不同材料的粘合力。这类涂料的例子包括以1,1-二氯乙烯聚合物为主的组合物(美国专利2,698,240),热固性丙烯酸或甲基丙烯酸聚合物(美国专利3,819,773)以及类似物质。某些可水分散的共聚酯作为粘合剂也已公开,如美国专利3,563,942和3,779,993所述这类粘合剂用以将聚酯薄膜彼此层合或同尼龙薄膜片材的层合。溶剂基聚氨酯粘合剂也可用来促进粘合力,但带来的排出和安全性问题。
采用硅烷偶联剂改善聚酯片材和聚乙烯片材的粘结性是公知的。例如,按照E.plueddemann“通过偶联剂进行粘结”(plenum出版公司,New        York,1985)一文透露,用一种诸如乙烯/醋酸乙烯酯三元共聚物或聚酯弹性体的热溶性粘结剂,已经成功地将涂有乙烯基三甲氧基硅烷或氯丙基三甲氧基硅烷的聚酯片材和聚乙烯片材进行了层合。另外,美国专利4,663,228揭示了用N-2-氨乙基-3-氨丙基三甲氧基硅烷(Dow化学公司出售,牌号Z-6020)作为涂底剂来增强离子键高聚物树脂(乙烯和甲基丙烯酸共聚物的盐)对玻璃和聚碳酸酯片材的粘合力。按照欧洲专利申请公告171,917披露,相关的硅烷(如N-3-氨丙基三烷氧硅烷)已知能提高聚氨酯薄膜和玻璃基体之间的粘合力。
但是,这些已有技术的公开文献没有一篇提出在许多涂底剂物质失效的冰点温度以下保持聚酯薄膜和聚乙烯醇缩丁醛或其它聚合物薄膜之间良好的粘合力的问题。
所以,本发明的一个目的是提供一种当与其它聚合物薄膜层合时粘合力得到提高的取向自撑式薄膜材料。
另一目的是提供一种聚酯薄膜用的涂底剂,这种涂底剂使聚酯和聚乙烯醇缩丁醛薄膜之间的粘合力得到提高并且即使在冰点以下也使其耐离层。
本发明的这些目的和其它目的现在可通过提供一种用水解的氨基官能团硅烷涂底层的取向的聚酯薄膜来达到。
用作本发明的底层的氨基官能团硅烷是以其未水解状态与以下通式相符的二氨基或三氨基硅烷:
其中X是选自H2NR1HNR1-和H2NR1HNR1HNR1-的一个基团;R1是选自C1-C8烷基或苯基的相同或不同的基团;R2是选自C1-C8烷氧基、乙酰氧基或卤化物的一个可水解基团;R3是选自C1-C3烷基或苯基的一个非反应性,不能水解的基团,(a)是1~3中的一个整数;(b)是0~2中的一个整数,(a)和(b)之和为3。
合适的硅烷的例子包括N-(2-氨乙基)-3-氨丙基甲基-二甲氧硅烷,N-(2-氨乙基-3-氨丙基)三甲氧硅烷,N-2-氨乙基-3-氨丙基三(2-乙基己氧基)硅烷,6-(氨己基氨丙基)三甲氧硅烷,(氨乙基氨甲基)苯乙基三甲氧基硅烷和N-2-氨乙基-2-氨乙基-3-氨丙基三甲氧硅烷。
本发明用的更好的硅烷是具有以下分子式的二氨基伯胺:
其中R1是具有1~3个碳原子的相同或不同的烷基,R2是C1-C3烷氧基,(a)是3,(b)是0。
最佳的是其中R1和R2是C1-C3烷基,R3是C1-C3烷氧基,(a)是3且(b)是0的上式的硅烷。最受推荐的硅烷是具有以下分子式的N-2(氨乙基-3-氨丙基)三甲氧硅烷:
水解的氨基硅烷在制造薄膜过程中任何合适的时期(即在拉伸操作之前或之中)以水溶液的形式涂覆到薄膜上,或者也可涂覆在成品膜上。经实测,所得的涂了底层的聚酯薄膜显示出对其它聚合物材料优良的粘合性,而且可以容易地层合到其它聚合物薄膜上。即使在冰点温度以下粘合性也能保持。
通过使氨基硅烷与水以约0.2~约6wt%的量进行混合制备本发明的底涂层配方。根据需要也可加入一种弱酸如乙酸以促进水解。硅烷的至少一个可水解基水解成硅醇基(Si        OH)。据认为,氨基硅烷的水解产物具有一种部分水解了的环化结构,其中氨基可能与分子的硅部分形成了离子键。所以,这里所用的术语“水解了的”也可指这种部分水解了的结构。
虽然按本发明可底涂的优选薄膜的例子是聚酯薄膜,本发明同样可用于其它高模量薄膜,包括聚酰胺薄膜和聚碳酸酯薄膜在内。所用的片基的模量或韧性通常比层合到它上面的聚合物或片材要高,且具有较高的熔点或软化点。
虽然本发明同样适用于一种以结晶性聚酯(由二醇如乙二醇或丁二醇以及它们的混合物与对苯二甲酸或和其它二元羧酸如间苯二甲酸、联苯甲酸和癸二酸的混合物,或它们的形成聚酯的当量混合物缩聚而成,其中聚酯是用本技术领域公知的方法制备的)为基础的薄膜,但适用于本发明的优选的取向聚酯薄膜片基是用聚对苯二甲酸乙二醇酯制备的。这种薄膜可通过本技术领域公知的技术,采用公知的设备生产。
例如,将聚酯熔融并以无定形片材形式挤到一抛光的浇铸用转鼓上,形成聚合物的铸片。之后,就单轴取向的薄膜而言,将薄膜以一个方向轴向拉伸,也就是说既可以沿挤出方向(纵向)拉伸,也可以沿垂直于挤出方向(横向)拉伸,而就双轴取向的薄膜来说,两个方向均进行拉伸,即不论横向和纵向均拉伸薄膜。为赋予薄膜强度和韧性,第一级拉伸倍数可在约3.0~约5.0倍之间。
本发明的水解了的氨基硅烷涂底剂可在制膜的三个阶段之一,即在浇铸无定形片材和第一级拉伸之间的预拉伸阶段(如英国专利1,411,564披露),在单轴拉伸之后但在双轴拉伸之前的中间拉伸阶段(如美国专利4,214,035所披露);或在双轴拉伸之后但在卷膜之前的后拉伸阶段以水溶液的形式在流水线上涂布到膜上。一般来说,虽然若在加热步骤之后涂覆底剂往往需要单独的干燥步骤,但在拉伸或最后精整阶段薄膜所受热量足以蒸发掉水份和其它挥发物并使涂底剂干燥。也可以例如在涂覆操作之前先将薄膜表面进行电晕放电处理,然后脱机将涂底剂涂覆到成品上。再将薄膜表面干燥除水。
在一个优选实施方案中,涂底剂是在薄膜单轴拉伸之后涂覆的,也就是说,在薄膜一维方向拉伸之后但在薄膜正交方向拉伸之前涂覆的。在另一个优选实施方案中,聚酯薄膜先在涂覆之前以纵向进行拉伸。在该优选实施方案中,纵向拉伸之后,用本技术领域任何公知的技术涂覆薄膜。例如,可通过辊涂、喷涂、缝隙式涂覆或浸涂进行涂覆。在一个优选实施方案中,聚酯薄膜是用一个凹印圆筒涂覆的。另外,单轴拉伸的薄膜在涂覆之前最好用本技术领域公知的电晕放电设备进行电晕放电处理。这种放电处理降低了聚酯薄膜表面的疏水特性,使水基涂料更容易湿润表面,从而改善了涂料与表面的粘合性。
本发明的水解了的氨基硅烷以浓度为约0.2~约6%(重量)的水解的氨基硅烷的水溶液涂覆到片基上。于是,按约0.1~约0.5%(重量)的浓度加入一种弱酸,例如醋酸,磷酸等以促进水解。优选的酸加入量约为0.2%(重量)。水解的氨基硅烷的优选浓度是在约0.5~约2.5%(重量)之间。选用这种优选浓度是为了得到每平方英尺的薄膜上约0.10×10-6~约20×10-6磅的最终干燥的底涂剂重量。此范围最好为每平方英尺约0.20×10-6~约1.5×10-6磅,以约每平方英尺约0.80×10-6磅为流水线涂覆涂料的重量指标。当将涂料脱机涂覆到成品薄膜的情况下,干重的指标为每平方英尺约10×10磅。
本发明的涂料可涂覆到薄膜的一侧或两侧上,也可以将这种涂料涂覆到膜的一面,而将另一种涂料如热固性丙烯酸或甲基丙烯酸聚合物涂覆到膜的反面(如美国专利4,214,035所述)。在某些情况下,涂料也可涂覆到另一种会同它粘合的涂底剂上(已存在于薄膜表面)如热固性丙烯酸涂料上(如美国专利3,819,773所述)。
在玻璃领域,一种特别有意义的应用是利用聚酯薄膜,在该薄膜的一侧涂有本发明的涂底剂,在另一侧涂有一层耐磨涂料如可辐射固化的水解的乙烯基官能团硅烷组合物,这种组合物还含有一种多官能团交联剂和一种任意选择的光引发剂(如美国专利申请123,847(申请日:1987年11月23日)所述,在此援引以供参考)。这类材料已表明改善了多种塑料薄膜(包括聚酯薄膜在内)表面的耐磨性,使这些薄膜更适用于表面可能要受到磨损的应用场合。在参考的专利申请中公开的适合的乙烯基官能团硅烷的例子有乙烯基烷氧基硅烷类,如乙烯基三乙氧基硅烷、乙烯基三甲氧基硅烷和乙烯基三(2-甲氧基乙氧基)硅烷。优选的交联剂是多官能团的丙烯酸酯或甲基丙烯酸酯类单体,如乙氧基化的三羟甲基丙烷三丙烯酸酯。
按照如美国专利4,177,315,4,239,798,4,310,600和4,348,462披露,也可以使用其它合适的耐磨涂料。
涂料组合物也可含有其它成份,只要这些成份不损害水解的氨基硅烷的促进粘合作用便可。这些其它成份包括少量的胶态二氧化硅、染料、PH调节剂、湿润剂等等。涂底剂以连续涂层状处于薄膜表面上,术语“连续涂层”亦旨在包括涂底剂可形成涂层的若干个孤立区域或分隔区域的情况。
在生产过程中得到的涂有本发明涂底剂的聚酯薄膜碎片可经研磨并与新的聚酯混合、重新熔融和重新挤出,制成取向薄膜。由此制成的含大量带涂底剂的聚酯碎片回收物的薄膜,没有因存在涂料杂质对物理性能起什么破坏作用,而且产生的色泽也很浅。因此,与许多涂了其它底剂的薄膜,例如美国专利2,627,088和2,698,240介绍的用含1,1-二氯乙烯的聚合物打底的薄膜相比,本发明涂了底剂的薄膜为薄膜制造商提供了工业上胜过它们的优点,因为所列举的薄膜在按上述方法再生时往往降解和变色。
如上指出,本发明涂了底剂的薄膜与其层合的其它塑料薄膜形成了优良的粘接。这类薄膜的例子包括聚乙烯醇缩丁醛,聚碳酸酯,聚氨酯,聚烯烃(如聚乙烯或聚丙烯)聚苯乙烯和类似薄膜。通过构成一种薄膜夹层并将此夹层结构加热到聚酯薄膜的熔点温度以下但高于其它薄膜的熔点,最好同时向夹层结构施加中等压力,可由此制成层压片。优选的加热温度一般在约125℃~225℃之间。用于形成层压片的其它塑料薄膜本身,需要的话也可涂底剂。
在玻璃领域,一种特别有意义应用是利用在其一侧涂有本发明的涂底剂的聚酯薄膜。涂了底剂的聚酯薄膜一侧与聚乙烯醇缩丁醛片材相层合,后者再层合到玻璃板上。为此应用,优选的氨基硅烷是N-2-(氨乙基)-3-氨丙基三甲氧基硅烷(AE-APTMS)。底涂了AE-APTMS的聚酯薄膜在普通温度下对聚乙烯醇缩丁醛有良好的粘合性,而且在用其它涂底剂和处理后于冰点温度以下粘合性都不好也对聚乙烯醇缩丁醛具有良好的粘合性。
本发明的聚酯薄膜可夹在两层PVB之间和两层玻璃之间,薄膜的至少一侧底涂氨基硅烷,另一侧既可以底涂氨基硅烷也可以涂有一层用于阳光控制和红外反射的金属或金属氧化物。在另一种构型中,聚酯薄膜层合到玻璃的内部或内侧面作为抗撕层,在薄膜和玻璃之间有一层PVB;薄膜的底涂有氨基硅烷的一侧层合到玻璃上,薄膜的另一侧用一层耐磨层保护。
适用于本发明的聚酯薄膜的厚度一般在约0.25~约10密尔之间或更高。在用作多层汽车风挡玻璃时,优选的厚度在3~4密尔左右。
以下实施例举例说明本发明。
实施例1
将N-2-(氨乙基)-3-氨丙基三甲氧基硅烷(AE-APTMS)分散在普通自来水中,制成含AE-APTMS1.0%(重量)的浓度。然后,加入浓度为0.2%的醋酸以促进水解。
熔融聚对苯二甲酸乙二醇酯并通过一个缝隙式模头挤压到一个温度保持在约20℃的浇铸鼓上。熔体降温凝固形成铸片。将铸片以约3.5与1之拉伸比纵向拉伸,同时温度保持在约80℃。纵向拉伸后的薄膜用电晕放电设备进行电晕处理,然后用一种上述水解的氨基硅烷溶液通过反转凹印进行涂覆。经电晕处理、纵向拉伸的涂膜在约100℃下干燥。之后,以3.9与1之拉伸比横向拉伸薄膜,制成双轴拉伸薄膜。然后,双轴拉伸的薄膜在230℃的最高温度下加热处理。涂层的干重约为0.50×10-6磅/英尺薄膜。片基厚度约为3密尔。
实施例2~4
完全按实施例1所述的方法制备涂了底剂的薄膜,不同的是在实施例2涂料液中AE-APTMS的浓度为1.5%(重量),在实施例3中浓度为2.0%(重量),在实施例4中浓度为2.5%(重量)。
实施例5~8
为了进行对比试验,按实施例1中同样的方法制备分子式为H2N(CH23Si(OCH33的N-3-氨丙基三甲氧基硅烷。完全按实施例1中所述的方法制备涂了底剂的薄膜。涂料液中APTMS的浓度在实施例5中为1.0%(重量),在实施例6中为1.5%(重量),在实施例7中为2.0%(重量),在实施例8中为2.5%(重量)。
实施例9~10
按实施例1中的同样方法制备涂了底剂的薄膜。实施例9,涂底剂是一种涂布浓度为4%(重量)的丙烯酸胶乳水分散体(按美国专利4,571,363所述,丙烯酸涂料是一种共聚胶乳)。实施例10,涂底剂是一种涂布浓度为4%(重量)的可水分散的共聚酯的水分散体(这种可水分散的共聚酯涂料在美国专利4,493,872中有描述)。
评价以上制备的各薄膜对聚乙烯醇缩丁醛的粘合性,方法是将薄膜层合到聚乙烯醇缩丁醛片材上,然后在Instron试验仪上进行180°剥离试验,检测1英寸宽的带子的剥离强度。将6×8英寸的涂覆了的薄膜片材同“Saflex        TG”层合(一种用于汽车安全玻璃的PVB片材,由Monsanto化学公司销售)并层合到玻璃板上,方法是将聚酯膜涂有氨基硅烷的一面与PVB接触并使PVB与玻璃板接触。将一英寸宽的平坦的PET薄膜带子(0.5密耳厚)放在涂覆了的薄膜和PVB之间,以便提供一个进行剥离试验用的非粘合的引头。把一片“Kapton”片材(杜邦公司商标)放在聚酯的顶面以起到脱除衬里的作用,另一片玻璃放在Kapton的上面。将这种结构夹在两块纸板之间,以使压力均匀分布,将组件放在已预热到150℃的平板液压机中。液压机上下台极与台极和纸板间接触相当紧密并使结构件预热5分钟。然后,压力提高到1150psi(磅/英寸),并保持30分钟。在压力保持在150psi的同时,将台板用循环水冷却到室温。一旦台板冷却到室温到取出层压物。用解剖刀在PET薄膜中切下1英寸宽的带子。
为测试剥离强度,将PET/PVB/玻璃的层合试样放在Instron测试仪中,玻璃/PVB夹在Instron的下部夹具中,非粘性引头自由垂挂并朝向夹具。把一节#610“Scotch带子(3M商标)重折连在非粘性引头上。然后,将这节Scotch带子夹在Instron仪的上部夹具中。引头和PVB/玻璃间夹角为180°。对一英寸长带子,以1英寸/分钟的速率进行剥离。从长条记录纸读取从PVB剥离PET所需的最大力。每个实施例各制备三个层合试样。对每个6×8层合试样,在室温下拉三次(23℃),在-10℃拉三次。结果示于表1。
表1
180℃剥离强度(磅/英寸)
薄膜        23℃        10℃
实施例1        15.1*        8.1
实施例2        12.8        11.8
实施例3        8.7*        10.8
实施例4        16.6        10.0
实施例5        8.3        0.0
实施例6        5.3        0.0
实施例7        7.5        0.0
实施例8        10.0        0.0
实施例9        3.8        0.0
实施例10        0.0        0.0
*PVB从玻璃板上脱层
从表中可以看出,与用一种标准的可水分散的共聚酯或丙烯酸胶乳相比,用本发明的AE-APTMS氨基硅烷涂底层的薄膜试样不论在室温下试验,还是调定在-10℃下24小时后试验都显示出耐剥离性的显著改善。用APTMS涂底层的薄膜在室温下表现出粘合性,但在-10℃调定24小时之后基本上没有粘合性。
实施例11
通过脱线涂布操作(指的是从薄膜生产线上分出的涂装线),将N-2-(氨乙基)-3-氨丙基三甲氧基硅烷涂覆到结晶的双轴取向的成品PET薄膜上并通过辊隙层合到PVB上。涂料是浓度为1.5%的Z-6020(Dow Corning销售),其中为了促进水解加有0.2%醋酸。以100英尺/分运行的薄膜用电晕处理,然后采用反转凹印法进行涂覆。涂层重为14×10-6磅/英尺2,然后在220°F和400磅/线英寸压力下,采用压辊将涂覆的薄膜经辊隙层合到30密耳厚的聚乙烯醇缩丁醛片材上。将PET/PVB层压片层合到玻璃板上并按实施例1~10描述的方法进行测试。在23℃下,剥离粘合强度为12.5磅/英寸。在16°F,剥离粘合强度为1.4磅/英寸。
实施例12
一侧涂有AE-APTMS用以粘合聚乙烯醇缩丁醛的聚酯薄膜也可在另一侧涂覆用一种按以下方法制备的合适的抗磨涂层:
在室温下,将48.0克乙烯基三甲氧基硅烷滴加入72克Nalco        1034A(市售的酸性胶态二氧化硅),同时用磁性搅拌器轻微搅拌。在密闭容器中,于室温下胶板混合物4小时,然后在水浴中加热到60℃保持30分钟,同时仍继续搅拌。
4.8克SARTOMER        C-9035(ARCO        Speciality        chemicals公司出售的水溶性的高乙氧化三羟甲基丙烷三丙烯酸酯)与4.0克异丙醇、0.9克IRGACURE500(Ciba-Geigy公司出售的光引发剂)和0.2克市售的氟化表面活性剂(3M出售,商标Fluoral)混合。将所得混合物加入12克二氧化硅/乙烯基三甲氧基硅烷缩合物中,形成可辐射固化的涂料组合物。
用#18        Meyer棒将涂料组合物涂覆到4密耳厚的底除了丙烯酸胶乳的聚酯薄膜一侧,薄膜的另一侧用按照本发明实施例1的AE-APTMS氨基硅烷涂底层。涂层先在保持在75℃的烘箱中干燥1分钟,然后将涂覆的聚酯薄膜以25英尺/分钟通过RPC        Equipment        Co.制造的QC1202型处理机四次,用两根200瓦/英寸的灯源紫外辐射进行交联。经实测,上述涂层显著改善了薄膜表面的涂层一侧的耐磨性,使这种薄膜在汽车风挡应用更有用。

Claims (23)

1、一种取向的自撑式高模量薄膜,在其一侧或两侧具有连续的涂底剂组合物,所述涂底剂组合物含有一种在未水解状态下具有以下通式的水解了的氨基硅烷化合物的干残余物:
其中X是选自H2NR′HNR′-和H2NR′HNR′HNR′-的一个基团,R′是选自C1-C8烷基或苯基的相同或不同的基团;
R2是选自C1-C8烷氧基、乙酰氧基或卤化物的一个可水解基团;R3是选自C1-C3烷基或苯基的一个非反应性不能水解的基团;(a)是1~3中的一个整数;(b)是0~2中的一个整数,(a)和(b)之和为3,所述涂底剂组合物的含量应有效地改善其它聚合物对所述薄膜的粘合性。
2、权利要求1的薄膜,其中所述氨基硅烷化合物选自:N-(2-氨乙基)-3-氨丙基甲基二甲氧硅烷,N-(2-氨乙基-3-氨丙基)三甲氧基硅烷,N-2-氨乙基-3-氨丙基三(2-乙基己氧基)硅烷,6-(氨己基氨丙基)三甲氧基硅烷,(氨乙基氨甲基)苯乙基三甲氧基硅烷和N-2-氨乙基-2-氨乙基-3-氨丙基三甲氧基硅烷。
3、权利要求1的薄膜,其中所述薄膜是聚酯。
4、权利要求3的薄膜,其中所述薄膜是双轴取向的聚对苯二甲酸乙二醇酯薄膜。
5、权利要求4的薄膜,其中所述氨基硅烷化合物在未水解状态下具有以下通式:
其中R1是具有1~3个碳原子的相同或不同的烷基,R2是C1-C3的烷氧基,(a)是3和(b)是0。
6、权利要求5的薄膜,其中所述氨基硅烷化合物是N-2-(氨乙基)-3-氨丙基三甲氧基硅烷。
7、权利要求4的薄膜,其中所述薄膜的制备方法如下:熔融挤出一种基本无定形的聚酯薄膜,而后将薄膜依次以两个方向拉伸使薄膜取向并热固定薄膜,在一个方向拉伸之前,或在一个方向拉伸之后但在正交方向拉伸之前,或在两个方向拉伸之后,将所述涂底剂以水溶液形式涂覆到所述薄膜上。
8、权利要求7的薄膜,其中所述薄膜在用所述涂底剂组合物涂覆之前经过电晕放电处理。
9、权利要求7的薄膜,其中所述涂底剂组合物是在一个方向拉伸之后但在正交方向拉伸之前涂覆的。
10、权利要求7的薄膜,其中所述氨基硅烷化合物是N-2-(氨乙基)-3-氨丙基三甲氧基硅烷。
11、权利要求7的薄膜,其中所述涂底剂组合物的含量为每平方英尺的薄膜表面约0.10×10-6~约20×10-6磅(以干重计)。
12、权利要求5的聚酯薄膜,它具有粘合剂到表面涂覆了涂底剂的所述聚酯薄膜上的另一种聚合物薄膜。
13、权利要求12的薄膜,其中所述氨基硅烷化合物是N-2-(氨乙基)-3-氨丙基三甲氧基硅烷。
14、权利要求13的薄膜,其中所述聚合物是聚乙烯醇缩丁醛。
15、权利要求13的薄膜,其中所述聚合物是聚乙烯。
16、权利要求13的薄膜,其中所述聚合物是聚氨酯。
17、权利要求14的薄膜,其中所述涂底剂组合物的含量为每平方英尺薄膜表面约0.10×10-6~约20×10-6磅(以干重计)。
18、一种层状结构,它包括玻璃片,粘合到玻璃片上的聚乙烯醇缩丁醛片材和粘合到聚乙烯醇缩丁醛片材上的表面涂覆涂底剂的权利要求4的聚酯薄膜。
19、权利要求18的结构,其中聚酯薄膜用N-2-(氨乙基)-3-氨丙基三甲氧基硅烷涂底层。
20、权利要求18的结构,其中涂底剂的含量为每平方英尺约0.10×10-6~约20×10-6磅(以干重计)。
21、一种层状结构,它包括一块玻璃片、一块粘合到玻璃片上的聚乙烯醇缩丁醛片材、按权利要求4的涂有底剂的聚酯薄膜、粘合到该涂有底剂的聚酯薄膜上的第二块聚乙烯醇缩丁醛片材和粘合到该聚乙烯醇缩丁醛上的第二块玻璃片。
22、权利要求21的层状结构,其中涂有底剂的聚酯在其一侧具有一薄层金属或金属氧化物涂层。
23、权利要求18的结构,其中涂了底剂的所述聚酯薄膜面的反面涂有一层耐磨涂层。
CN89104241A 1988-06-15 1989-06-15 底层涂有氨基官能团硅烷的聚酯薄膜及其薄膜层压制品 Pending CN1038658A (zh)

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