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    • 6. 发明授权
    • Process for producing a rubber-based double-sided pressure-sensitive adhesive tape
    • 橡胶系双面粘合带的制造方法
    • US06527899B1
    • 2003-03-04
    • US09063745
    • 1998-04-21
    • Bernd DietzWerner Kluge-PalettaWerner KarmannBodo SzonnFrank Henke
    • Bernd DietzWerner Kluge-PalettaWerner KarmannBodo SzonnFrank Henke
    • B29C4706
    • B32B25/08B29C47/0021B29C47/065B29C47/145B32B37/153B32B2038/0076B32B2310/0887B32B2405/00
    • Process for producing a pressure-sensitive double-sided adhesive tape, in which a) a ready-made rubber-based backing material is introduced into a screw extruder, where 1. the backing material is heated by means of heating elements present on the screw extruder, 2. in a degassing zone, the backing material is freed from volatile constituents by means of the application of reduced pressure, 3. the backing material is homogenized and brought to the intended temperature, b) in a co-extrusion adapter, a barrier layer conveyed by means of a further appropriate melting and conveying unit is placed onto the backing material on both sides, c) the resulting intermediate laminate is supplied to a three-channel slot die and is uniformly extruded in web form, d) in the said three-channel slot die a pressure-sensitive hotmelt adhesive, supplied in each case with the aid of an appropriate melting and conveying unit, is applied, top and bottom, over the whole area of the intermediate laminate, e) the adhesive tape thus produced is placed onto an antiadhesive substrate, preferably siliconized paper, f) if desired, the adhesive tape is cooled and crosslinked.
    • 制造压敏双面胶带的方法,其中a)将现成的橡胶基背衬材料引入螺杆挤出机中,其中1。 背衬材料通过存在于螺杆挤出机上的加热元件2来加热。 在脱气区,通过减压的应用,背衬材料可以免去挥发性成分3。 将背衬材料均质化并达到预期温度,b)在共挤出接头中,通过另一适当的熔化和输送单元输送的阻隔层被放置在两侧的背衬材料上,c)所得到的中间体 层压板被供应到三通道槽模,并且均匀地以网状形式挤出,d)在所述三通道槽模中,借助于适当的熔化和输送单元在每种情况下供应的压敏热熔粘合剂, 在中间层压体的整个区域上施加顶部和底部,e)将如此生产的粘合带放置在防粘衬底上,优选硅化纸上,f)如果需要,粘合带被冷却和交联。