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发明公开
CN106893534A 用于道路标志牌反光膜的热剥离压敏胶及其制备方法 无效 - 驳回

用于道路标志牌反光膜的热剥离压敏胶及其制备方法
摘要：
本发明公开了用于道路标志牌反光膜的热剥离压敏胶及其制备方法，包括以下重量配比的组合物制备：丙烯酸硬单体、丙烯酸软单体、内聚力改良剂、溶剂、引发剂、空心微球；步骤：丙烯酸硬单体和丙烯酸软单体混合均匀；称取50%单体、20%溶剂混合均匀，进入反应釜加热至回流；称取25%溶剂、70%引发剂，与余下单体混合均匀滴加到反应釜，保持回流状态保温反应；称取20%溶剂，与余下引发剂混合均匀滴加到反应釜，保持回流状态保温反应；称取30%内聚力改良剂、25%溶剂、空心微球，均匀混合滴加到反应釜；将内聚力改良剂剩余70%滴加到反应釜；将剩余溶剂加入反应釜分散均匀；冷却出料，即得用于道路标志牌反光膜的热剥离压敏胶。
摘要（英）：

The invention discloses a hot stripping PSA for a road sign board reflective film and a preparation method of the PSA. The PSA is prepared from the compositions of, by weight, a crylic acid hard monomer, a crylic acid soft monomer, a cohesion modifier, a solvent, an initiator and hollow microspheres; the preparation method comprises the steps that the crylic acid hard monomer and the crylic acid soft monomer are mixed uniformly; 50% of monomer and 20% of solvent are weighed and mixed uniformly, and the mixture enters a reaction kettle for heating and backflow; 25% of solvent and 70% of initiator are weighed, the mixture is mixed uniformly with surplus monomer and dropwise added to the reaction kettle, the backflow state is kept, and heat preservation reaction is performed; 30% of cohesion modifier, 25% of solvent and the hollow microspheres are weighed, mixed uniformly and dropwise added to the reaction kettle; the the surplus 70% of cohesion modifier is dropwise added to the reaction kettle; the surplus solvent is added to the reaction kettle and dispersed uniformly; cooling discharging is performed, and the hot stripping PSA for the road sign board reflective film is obtained.

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