CN104105767B - 热塑性单层保护覆盖物 - Google Patents
热塑性单层保护覆盖物 Download PDFInfo
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- CN104105767B CN104105767B CN201280069167.2A CN201280069167A CN104105767B CN 104105767 B CN104105767 B CN 104105767B CN 201280069167 A CN201280069167 A CN 201280069167A CN 104105767 B CN104105767 B CN 104105767B
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- 230000001681 protective effect Effects 0.000 title abstract description 4
- 229920001169 thermoplastic Polymers 0.000 title abstract description 4
- 239000004416 thermosoftening plastic Substances 0.000 title abstract description 4
- 239000000853 adhesive Substances 0.000 claims abstract description 215
- 230000001070 adhesive effect Effects 0.000 claims abstract description 215
- 239000002313 adhesive film Substances 0.000 claims description 38
- 229920005549 butyl rubber Polymers 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 14
- 239000004831 Hot glue Substances 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
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- 238000001125 extrusion Methods 0.000 claims description 2
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- 238000013459 approach Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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Classifications
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Abstract
一种热塑性单层保护屋顶覆盖物可以具有两个压力敏感橡胶基粘合衬。这些双重粘合衬可以被用来提供具有良好的缝强度和防火性能组合的非热熔接缝。
Description
相关申请的交叉引用:本公开是2011年12月7日递交的名称为“热塑性单层保护覆盖物(Thermoplasticsingleplyprotectivecovering)”的美国临时专利申请No.61/568125的非临时申请,并且因而要求所述临时专利申请的优先权,所述临时专利申请在本文中通过引用被并入。
技术领域
本发明总体涉及屋面(roofing)产品,并且更具体地涉及单层、自粘附屋顶覆盖物(covering)。
发明背景
基于热塑性聚烯烃(TPO)的屋面膜是当今市场上可获得的许多种类的屋面膜之一。TPO可以是聚烯烃塑料(如聚丙烯聚合物)与烯烃共聚物弹性体(OCE)(如乙烯-丙烯橡胶(EPR)或乙烯-丙烯-二烯橡胶(EPDR))的熔体共混物(meltblend)或反应器共混物(reactorblend)。商业上可获得的TPO膜的示例包括SUREWELDTM(卡莱尔股份有限公司(CarlisleInc.)),GENFLEXTM(欧诺法解决方案股份有限公司(OmnovaSolutions,Inc.)),ULTRAPLYTM(火石建筑产品公司(FirestoneBuildingProducts))和EVERGUARDTPOTM(GAF公司)。可伸缩的TPO膜在美国专利No.7666491中被公开,所述专利在本文中通过引用被并入。各种途径已经被建议用于安装TPO膜到屋顶基板(substrate),包括机械固定或粘合。
发明内容
本文中的公开包括单层、自粘附膜的各种实施方案。在实施方案中,示例性自粘附膜可以包括膜和第一粘合衬,所述第一粘合衬被设置于所述膜的第一表面上。第二粘合衬可以被设置于所述膜的第一表面上邻近所述第一粘合衬。所述第二粘合衬可以延伸通过所述第一表面的边缘部分。该公开的自粘附膜还可以包括第三粘合衬,所述第三粘合衬被设置于所述膜的第二表面上。所述第三粘合衬可以延伸通过所述膜的所述第二表面的边缘部分。在示例性实施方案中,第二和第三粘合衬可以被配制来具有相同的材料,而第一和第二粘合衬可以被配制来具有不同的材料。例如,所述第一粘合衬可以包括第一聚合材料,所述第一聚合材料构成以重量计所述第一粘合衬的至少大约20%,并且第二和第三粘合衬可以每个包括第二聚合材料,所述第二聚合材料构成以重量计各自的粘合衬的至少大约20%,其中所述第一和第二聚合材料不同。
在实施方案中,自粘附膜可以包括热塑性聚烯烃(TPO)膜,第一粘合衬,所述第一粘合衬被设置于所述TPO膜的第一表面上,第二粘合衬,所述第二粘合衬被设置于所述TPO膜的第一表面上并且邻近所述第一粘合衬,所述第二粘合衬延伸通过所述第一表面的边缘部分,以及第三粘合衬,所述第三粘合衬被设置于所述TPO膜的第二表面上,所述第三粘合衬延伸通过所述TPO膜的所述第二表面的边缘部分。所述第一表面的边缘部分的宽度和所述第二表面的边缘部分的宽度每个为大约3到9英寸,并且所述第二粘合衬的高度比所述第三粘合衬的高度大。所述第一粘合衬可以包括填充的丁基橡胶基粘合剂,所述填充的丁基橡胶基粘合剂构成以重量计所述第一粘合衬的至少大约20%,并且第二和第三粘合衬可以每个包括非填充的丁基橡胶基粘合剂,所述非填充的丁基橡胶基粘合剂构成以重量计各自的粘合衬的至少大约20%,其中所述第二和第三粘合衬中的至少一个包括以重量计大约2%到4%的聚烯烃蜡。
在另一个示例性实施方案中,制备自粘附膜的方法可以包括提供膜,将第一粘合衬设置于所述膜的第一表面上,将第二粘合衬设置于所述膜的第一表面上并且邻近所述第一粘合衬,所述第二粘合衬延伸通过所述第一表面的边缘部分,并且将第三粘合衬设置于所述膜的第二表面,所述第三粘合衬延伸通过所述膜的所述第二表面的边缘部分。所述第一粘合衬可以包括第一聚合材料,所述第一聚合材料构成以重量计所述第一粘合衬的至少大约20%,并且第二和第三粘合衬可以每个包括第二聚合材料,所述第二聚合材料构成以重量计各自的粘合衬的至少大约20%,其中所述第一和第二聚合材料不同。
附图简要说明
所述公开的特征、方面和实施方案连同附图被描述,其中:
图1是依据本公开的膜的部分透视图;
图2是依据本公开的单层、自粘附膜的实施方案的剖视图;
图3是依据本公开的包括多个图2所示的单层、自粘附膜的屋面安装方式的实施方案的剖视图;
图4是依据本公开的具有多个粘合衬的单层、自粘附膜的示例性实施方案的剖视图;
图5是依据本公开的具有多个图4所示的单层、自粘附膜的屋面安装方式的实施方案的剖视图;
图6是经过防火测试后具有非填充的和填充的丁基粘合衬的膜的对比;
图7是经过耐热性测试后膜的对比;
图8是图示依据本公开的制备自粘附膜的方法的流程图。
具体描述
图1是膜100的部分透视图。所述膜100包括盖(cap)层102和芯(core)层104。在实施方案中,所述膜100还可以包括基本上被夹在所述盖层102和所述芯层104之间的斯克林布(scrim)层106。所述斯克林布可以是由用于增强或强化膜的连续股材料构成的织造的、非织造的或针织的面料。所述斯克林布是通常在该复合物中最强的层。所述面料可以显著地有助于所述屋面膜的抗拉强度并且提供尺寸稳定性。在实施例中,所述面料增强体包括基于聚酯纱线(yarn)的斯克林布。基于玻璃纤维的斯克林布也可以被用于期望附加的重量和/或提高的尺寸稳定性的情况。所述盖层102和所述芯层104中的每一个可以由如TPO的材料制成。当被安装到房屋的屋顶上时,所述膜100可以被定向以至于所述盖层102在迎风侧(weatherside)上,面向上朝着阳光的方向;所述芯层104可以被定向以至于所述芯层104在板侧(deckside)上,面向下朝着屋顶板。所述膜100可以使用各种方式被安装到屋顶基板(未示出)上。一种方式可以采取用穿过膜100并且进入到屋顶基板中的螺丝和锚板(anchorplates)的机械固定。另一种方式是用粘合剂覆盖所述膜100的板侧,如压力敏感粘合剂,并且将所述膜100层压到所述屋顶基板。
图2是可操作地被层压到屋顶基板的自粘附膜200的实施方案的剖视图。所述自粘附膜200可以包括图1中图示说明的膜100和粘合衬202,所述粘合衬202被设置于所述膜100的板侧上。所述粘合衬202可以从所述膜100的一个边缘延伸到所述膜100的相对的边缘,由此基本上覆盖所述膜100的板侧表面。所述粘合衬202可以包括各种压力敏感粘合剂,所述压力敏感粘合剂允许在没有固化的情况下形成与基板的结合。在实施方案中,所述膜200可以包括附加的粘合衬204,所述粘合衬204被设置于所述膜100的迎风侧上。所述粘合衬204可以延伸通过所述膜100的边缘部分206。
图3是包括多个自粘附膜的屋面安装方式300的实施方案的剖视图。所述屋面安装方式300的自粘附膜200a、200b可以基本上与图2所示的自粘附膜200相似,所述自粘附膜200a、200b每个包括粘合衬202以及附加的粘合衬204,所述粘合衬202被设置于膜100的板侧上,所述粘合衬204被设置于所述膜100的迎风侧上。所述屋面安装方式300可以被这样安装,即通过将所述膜200a设置于屋顶基板(未示出)上并且针对所述膜200a的迎风侧施加压力以允许所述粘合衬202与所述屋顶基板结合来完成。所述膜200b可以被设置于所述屋顶基板上的这样的位置,所述位置邻接所述膜200a以至于所述膜200a的边缘部分306被所述膜200b的边缘部分308搭接。在这个取向上,所述膜200a的边缘部分308可操作地与所述膜200a的边缘部分306配合来形成缝(seam)。在实施方案中,所述边缘部分306、308之间的缝可以使用被设置于所述边缘部分306、308之间的粘合带形成。
在该图示说明的实施方案中,所述膜200a的迎风侧粘合衬204可以被所述膜200b的边缘部分308搭接。这样,所述膜200b的板侧粘合衬202和所述膜200a的迎风侧粘合衬204可以彼此结合并且形成缝。可以理解,粘合衬202、204可以用丁基橡胶基压力敏感粘合剂配制并且允许膜200a,200b以最小的现场缝制备(minimalfieldseampreparation)被安装。由在粘合衬202、204中的丁基橡胶基粘合剂形成的所述缝可以具有这样的缝剥离强度,所述缝剥离强度根据ASTMD413规程被测量为大约3到5磅每线性英寸(linearinch)。这样的缝可能遭受退化和缝开口;在一些应用中更高的缝剥离强度可能是期望的。
图4是自粘附膜400的示例性实施方案的剖视图。所述自粘附膜400包括膜410和第一粘合衬402,所述第一粘合衬402被设置于所述膜410的第一表面上。所述膜410的构型可以与上面讨论的所述膜100的构型相似。所述膜410的所述第一表面可以是板侧表面,并且所述第一粘合衬402可以基本上覆盖除所述板侧表面的边缘部分408以外的所述膜410的板侧表面。第二粘合衬420可以被设置于所述膜410的板侧表面上邻近所述第一粘合衬402。所述第二粘合衬420可以延伸通过所述板侧表面的边缘部分408。该公开的自粘附膜400还可以包括第三粘合衬404,所述第三粘合衬404被设置于所述膜410的第二、迎风侧表面上。所述第三粘合衬404可以延伸通过所述膜410的迎风侧表面的边缘部分406。
图5是包括多个自粘附膜的屋面安装方式500的实施方案的剖视图。所述屋面安装方式500的自粘附膜400a、400b可以基本上与图4所示的自粘附膜400相似,所述自粘附膜400a、400b每个包括第一和第二粘合衬402、420以及第三粘合衬404,所述第一和第二粘合衬402、420被设置于膜410的板侧上,所述第三粘合衬404被设置于所述膜410的迎风侧上。所述屋面安装方式500可以被这样安装,即通过将所述膜400a设置于屋顶基板(未示出)上并且针对所述膜400a的迎风侧施加压力以允许所述第一粘合衬402与所述屋顶基板结合来完成。所述膜400b可以被设置于所述屋顶基板上这样的位置,所述位置邻接所述膜400a以至于所述膜400a的所述边缘部分406被所述膜400b的所述边缘部分408搭接。在这个取向上,所述膜400b的所述第二粘合衬420和所述膜400a的所述第三粘合衬404可以彼此结合并且形成缝450。
参考图4和5,在实施方案中,所述板侧表面的所述边缘部分408可以具有第一宽度430,并且所述第二表面的所述边缘部分406可以具有第二宽度432。在实施方案中,第一和第二宽度430、432可以基本上相同。在示例性实施方案中,第一和第二宽度430、432可以为大约3到9英寸。在示例性实施方案中,第一和第二宽度430、432可以为大约6英寸。
在实施方案中,第一、第二和第三粘合衬402、420、404可以每个具有基本上一致的高度。在实施方案中,所述第一粘合衬402的高度442和所述第二粘合衬420的高度444基本上相同。在实施方案中,所述第二粘合衬420的高度444和所述第三粘合衬404的高度446可以相同。在另一个实施方案中,为了减少当所述缝450被形成时粘合剂的皱纹(wrinkling),所述第三粘合衬404的所述高度446可以被减少到小于所述第二粘合衬420的所述高度444的量。在示例性实施方案中,所述第三粘合衬404的所述高度446可以为大约2到6密耳,而所述第二粘合衬420的所述高度444可以为大约6到12密耳。在示例性实施方案中,针对强度和没有皱纹优化的高度444和446分别可以为大约8到12密耳和4到6密耳。
第一、第二和第三粘合衬402、420和404可以每个包括热熔粘合涂层、热熔粘合带或挤出的粘合带。在示例性实施方案中,粘合衬402、420和404可以每个包括热熔粘合涂层以允许更成本有效的制造方法并且更适应于宽宽度的应用。在实施例中,所述第一粘合衬402可以被配制以包括第一聚合材料,而第二和第三粘合衬420、404可以被配制以包括不同于所述第一聚合材料的第二聚合材料。在示例性实施方案中,第一和第二材料可以分别构成各自的粘合衬402、420和404的至少20%(重量)。通过在所述膜410的板侧上具有多种粘合衬402、420以及通过用于粘合衬402、420的不同粘合剂配方的使用,所述自粘附膜400的不同部分可以具有为不同设计目的而调整的不同的材料性质。例如,所述第一粘合衬402可以被配制以包括至少20%(重量)的填充的丁基橡胶基粘合剂来允许良好的阻燃性能,而第二和第三粘合衬420、404可以被配制以包括至少20%的非填充的丁基橡胶基粘合剂来允许良好的缝剥离强度。在一示例性实施方案中,具有优化的强度和阻燃性能的第一粘合衬402可以包括大约50%到80%(重量)的填充的丁基橡胶基粘合剂;具有优化的强度和阻燃性能的第二和第三粘合衬420、404可以包括大约50%到80%(重量)的非填充的丁基橡胶基粘合剂。
填充的丁基橡胶基粘合剂比非填充的丁基橡胶基粘合剂更优越的阻燃性能在图6中被图示说明。图6是通过具有非填充的丁基橡胶基粘合衬(未示出)的单层膜600和通过具有填充的丁基橡胶基粘合衬(未示出)的单层膜650的火焰传播的对比。如图所示,通过所述膜600的火焰传播是通过所述膜650的火焰传播的几乎两倍,所述火焰传播按照改进的ASTME108防火测试进行。
另一方面,非填充的丁基橡胶基粘合剂比填充的丁基橡胶基粘合剂的更优越的缝剥离强度在以下表1中被说明。表1汇集实施例1和对照例1的边缘缝的180°T-剥离强度数据。在实施例1中,边缘缝用非填充的丁基橡胶基粘合剂在两个TPO膜之间形成。实施例的粘合剂包括至少20%(重量)的非填充的丁基橡胶。在对照例1中,边缘缝用至少一种填充的丁基橡胶基粘合剂在两个TPO膜之间形成。对照例1的粘合剂包括至少20%(重量)的填充的丁基橡胶。所述边缘缝的180°T-剥离强度数据根据ASTMD413标准测试方法被测量。如在表1中所示,实施例1的剥离强度比对照例1的剥离强度大至少几倍。
可以理解,所述第一粘合衬402和第二和第三粘合衬420、404可以在其他方面被不同地配制来获得其他性能目的的组合。例如,第二和第三粘合衬420、404可以包括选择性的、功能化的聚烯烃蜡以在不破坏粘合值的情况下增加所述第二和第三粘合衬420、404的耐热性。这样,所述第二和第三粘合衬420、404的耐热性的提高转化为由所述第二和第三粘合衬420、404形成的缝的耐热性的提高。在实施方案中,所述第二和第三粘合衬420、404可以被配制以包括大约2%到4%(重量)的聚烯烃蜡。
实施例2和对照例2的粘合强度数据在以下表2中被示出。在实施例2中,包括3.5%(重量)的功能化的聚烯烃的非填充的丁基橡胶基粘合剂被测试。在对照例2中,不包含任何功能化的聚烯烃的填充的丁基橡胶基粘合剂被测试。如在表2中所示,在实施例2中向所述非填充的丁基橡胶基粘合剂加入所述功能化的聚烯烃没有牺牲在对照例2中比填充的丁基橡胶基粘合剂的粘合性更优越的粘合性。这样,在不牺牲粘合强度的情况下,提高的耐热性可以被实现。
此外,具有氧化的聚烯烃蜡添加剂的粘合剂配方比没有这样的添加剂的粘合剂的更优越的耐热性能在图7中被图示说明。图7是包括3.5%(重量)的功能化的聚烯烃蜡的非填充的丁基橡胶基粘合剂700与没有加入功能化的聚烯烃蜡的非填充的丁基橡胶基粘合剂750的对比。根据ASTMD413测试方法,粘合剂700、750被加热到240℉,并且如图所示,当粘合剂750显著地变形时粘合剂700没有熔化基本上保持其固体形式。
图8是图示说明用于制备本公开的自粘附膜的方法800的示例性实施方案的流程图。可以理解,所述方法800可以被使用来制备本文所公开的任何自粘附膜的实施方案,包括但不限于膜400、600和650。所述方法800可以包括步骤802,所述步骤802包括提供与本文所公开的膜100相似的膜。所述方法800还可以包括步骤804,所述步骤804包括将第一粘合衬设置于所述膜的第一表面上。在步骤804中被设置的所述第一粘合衬可以与本文中公开的粘合衬402相似,并且包括第一聚合材料,所述第一聚合材料构成以重量计至少大约20%的所述第一粘合衬。所述方法800还可以包括步骤806,所述步骤806包括将第二粘合衬设置于所述膜的第一表面上并且邻近所述第一粘合衬,所述第二粘合衬延伸通过所述第一表面的边缘部分。所述方法800还包括步骤808,所述步骤808包括将第三粘合衬设置于所述膜的第二表面上,所述第三粘合衬延伸通过所述膜的所述第二表面的边缘部分。第二和第三粘合衬可以与本文所公开的粘合衬420、404相似,并且每个包括第二聚合材料,所述第二聚合材料构成以重量计至少大约20%的各自的粘合衬。在实施方案中,第一和第二聚合材料是不同的。例如,在实施方案中,所述第一聚合材料可以是填充的丁基橡胶基粘合剂并且所述第二聚合材料可以是非填充的丁基橡胶基粘合剂。
在实施方案中,在步骤806中设置所述第二粘合衬的步骤可以包括形成第二粘合衬以具有横过所述第一表面的边缘部分的大约3到9英寸的宽度,并且在步骤808中设置所述第三粘合衬的步骤可以包括形成第三粘合衬以具有横过所述第二表面的边缘部分的大约3到9英寸的宽度。在实施方案中,在步骤806、808中形成的所述第二粘合衬的宽度和所述第三粘合衬的宽度基本上相同。
在实施方案中,在步骤806中设置所述第二粘合衬的步骤可以包括形成所述第二粘合衬以具有第一高度,并且在步骤808中设置所述第三粘合衬的步骤可以包括形成所述第三粘合衬以具有第二高度,其中所述第一高度可以比所述第二高度大。在实施方案中,所述第一高度为大约8到12密耳,并且所述第二高度为大约4到6密耳。
可以理解,在实施方案中,在单个运行中,步骤804、806和808可以被基本上同时执行来最小化生产时间。在另一个实施方案中,所述步骤804、806和808中的一些或全部可以在不同的时间点被执行。例如步骤804和806可以在单个运行中被执行来将第一和第二粘合衬设置于TPO膜的第一表面上,并且所述步骤808可以在分开的运行中被执行来将所述第三粘合衬设置于所述TPO膜的第二表面上。所述步骤804、806和808的其他排序可以根据本公开的原理被使用。
如本文中可能使用的,术语“基本上”和“大致(上)”提供对于其相应的术语的工业可接受容限和/或项目之间的相关性。这样的工业可接受容限在从小于1%到10%的范围并且对应于,但是不限于,组分值、角度等等。这样的项目之间的相关性在小于大致1%到10%之间的范围。
尽管根据所公开的原理的各个实施方案已在上面被描述,应当理解的是,各个实施方案仅已通过实施例的方式被提出,但不限于此。因此,一个或多个发明的宽度和范围不应当由任何上述的示例性实施方案限制,但应当仅根据权利要求书及从本公开得知的等同物来限定。再者,上面的优点和特征在被描述的实施方案中被提供,但不应将这样发布的权利要求的应用限制到实现任何或所有上述优点的工艺和结构。
此外,本文的段落标题是被提供来与37CFR1.77的建议一致,或者用于提供本文的结构线索。这些标题不应限制或特征化可以从该公开公布的任何权利要求中所阐述的一个或多个发明。具体地,“背景”中的技术的描述不是要被解读为承认某项技术是该公开中的任意一个或多个发明的现有技术。再者,该公开中对单数的“发明”的任何引用不应被用于证明在该公开中仅有一个新颖点。根据从该公开公布的多个权利要求的限定,可以阐述多个发明,并且这些权利要求相应地定义了由其保护的一个或多个发明,以及它们的等同物。在所有例子中,这些权利要求的范围根据该公开按照这些权利要求本身的实质来理解,而不应被本文所陈述的标题限制。
Claims (13)
1.一种自粘附膜,所述自粘附膜包括:
热塑性聚烯烃膜;
第一粘合衬,所述第一粘合衬被设置于所述热塑性聚烯烃膜的第一表面上;
第二粘合衬,所述第二粘合衬被设置于
所述热塑性聚烯烃膜的第一表面上并且邻近所述第一粘合衬,所述第二粘合衬延伸通过所述第一表面的边缘部分;以及
第三粘合衬,所述第三粘合衬被设置于所述热塑性聚烯烃膜的第二表面上,所述第三粘合衬延伸通过所述热塑性聚烯烃膜的所述第二表面的边缘部分;
其中所述第一表面的边缘部分的宽度和所述第二表面的边缘部分的宽度每个为3到9英寸,并且所述第二粘合衬的高度比所述第三粘合衬的高度大;
其中所述第一粘合衬包括填充的丁基橡胶基粘合剂,所述填充的丁基橡胶基粘合剂构成以重量计所述第一粘合衬的至少20%;
其中第二和第三粘合衬每个包括非填充的丁基橡胶基粘合剂,所述非填充的丁基橡胶基粘合剂构成以重量计各自的粘合衬的至少20%;并且
其中第二和第三粘合衬中的至少一个包括以重量计2%到4%的聚烯烃蜡。
2.如权利要求1所述的自粘附膜,其中第一粘合衬包括以重量计50%到80%的填充的丁基橡胶基粘合剂。
3.如权利要求1所述的自粘附膜,其中第二和第三粘合衬每个包括以重量计50%到80%的非填充的丁基橡胶基粘合剂。
4.如权利要求1所述的自粘附膜,其中第二和第三粘合衬中的至少一个包括以重量计3.5%的聚烯烃蜡。
5.如权利要求1所述的自粘附膜,其中所述第一表面的边缘部分的宽度和所述第二表面的边缘部分的宽度每个为6英寸。
6.如权利要求1所述的自粘附膜,其中所述第一表面的边缘部分的宽度和所述第二表面的边缘部分的宽度相同。
7.如权利要求1所述的自粘附膜,其中所述第二粘合衬的高度为6到12密耳,并且所述第三粘合衬的高度为2到6密耳。
8.如权利要求1所述的自粘附膜,其中所述第二粘合衬的高度为8到12密耳,并且所述第三粘合衬的高度为4到6密耳。
9.如权利要求1所述的自粘附膜,其中所述第二粘合衬的宽度与所述第三粘合衬的宽度相同。
10.如权利要求1所述的自粘附膜,其中第一、第二和第三粘合衬每个包括热熔粘合涂层、热熔粘合带或挤出的粘合带。
11.一种制备自粘附膜的方法,所述方法包括:
提供热塑性聚烯烃膜;
将第一粘合衬设置于所述热塑性聚烯烃膜的第一表面上;
将第二粘合衬设置于所述热塑性聚烯烃膜的第一表面上并且邻近所述第一粘合衬,所述第二粘合衬延伸通过所述第一表面的边缘部分;以及
将第三粘合衬设置于所述热塑性聚烯烃膜的第二表面上,所述第三粘合衬延伸通过所述热塑性聚烯烃膜的所述第二表面的边缘部分;
其中设置所述第二粘合衬的步骤包括形成所述第二粘合衬以具有横过所述第一表面的边缘部分的3到9英寸的宽度,和第二粘合衬高度;
其中设置所述第三粘合衬的步骤包括形成所述第三粘合衬以具有(i)横过所述第二表面的边缘部分的3到9英寸的宽度,以及(ii)第三粘合衬高度,所述第二粘合衬高度比所述第三粘合衬高度大;
其中所述第一粘合衬包括填充的丁基橡胶基粘合剂,所述填充的丁基橡胶基粘合剂构成以重量计所述第一粘合衬的至少20%;
其中第二和第三粘合衬每个包括非填充的丁基橡胶基粘合剂,所述非填充的丁基橡胶基粘合剂构成以重量计各自的粘合衬的至少20%;并且
其中第二和第三粘合衬中的至少一个包括以重量计2%到4%的聚烯烃蜡。
12.如权利要求11所述的方法,其中所述第二粘合衬高度为6到12密耳,并且所述第三粘合衬高度为2到6密耳。
13.如权利要求11所述的方法,其中所述第二粘合衬高度为8到12密耳,并且所述第三粘合衬高度为4到6密耳。
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