Adhesive sheet
    1.
    发明授权
    Adhesive sheet 失效
    粘合片

    公开(公告)号:US5064717A

    公开(公告)日:1991-11-12

    申请号:US514430

    申请日:1990-04-25

    摘要: Disclosed are an adhesive sheet comprising a release sheet base material, an undercoat layer formed on the release sheet base material, a release agent layer formed on the undercoat layer, an adhesive layer formed on the release agent layer and a surface sheet formed on the adhesive layer, the adhesive sheet being characterized in that the undercoat layer comprises a water-dispersible acrylate or methacrylate copolymer resin having an emulsifier content of about 2 to about 10 wt. % based on the total amount of the monomers used for preparing the copolymer and which resin has a glass transition temperature of about -60.degree. to about 20.degree. C., and that the release sheet base material having the undercoat layer formed thereon, as a whole, has a bulk density of up to 1.0 g/cm.sup.3, and a process for preparing a release sheet comprising a release sheet base material, an undercoat layer and a relase agent layer.

    摘要翻译: 公开了一种粘合片,其包含剥离片基材,形成在剥离片基材上的底涂层,形成在底涂层上的剥离剂层,形成在剥离剂层上的粘合剂层和形成在粘合剂上的表面片 所述粘合片的特征在于,所述底涂层包含具有约2至约10重量%的乳化剂含量的水分散性丙烯酸酯或甲基丙烯酸酯共聚物树脂。 基于用于制备共聚物的单体的总量的%,该树脂的玻璃化转变温度为约-60℃至约20℃,并且其上形成有底涂层的剥离片基材作为 整体,具有高达1.0g / cm 3的堆积密度,以及用于制备包含剥离片基材,底涂层和粘合剂层的剥离片的方法。