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Process for preparing acrylic hotmelt PSAs
Process for preparing acrylic hotmelt PSAs
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机译:丙烯酸热熔粘合剂的制备方法
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摘要
The invention relates to a process for preparing acrylic hotmelt pressure-sensitive adhesives. Provision is made here for this process to comprise the steps of (a) providing a pressure-sensitive adhesive polyacrylate and a difunctional or polyfunctional reactive resin, the pressure-sensitive adhesive polyacrylate having at least one functional group which enables it to react with the difunctional or polyfunctional reactive resin; (b) preparing a mixture comprising the pressure-sensitive adhesive polyacrylate and the difunctional or polyfunctional reactive resin by mixing the pressure-sensitive adhesive polyacrylate in the melt with the difunctional or polyfunctional reactive resin; (c) coating the mixture onto a backing material; and (d) thermally curing the mixture on the backing material.
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