Heat-expandable removable pressure-sensitive adhesive tape or sheet, and method of removing the same
    1.
    发明公开
    Heat-expandable removable pressure-sensitive adhesive tape or sheet, and method of removing the same 审中-公开
    热膨胀性,可移除的压敏粘合带或片AND METHOD FOR的距离

    公开(公告)号:EP2578654A1

    公开(公告)日:2013-04-10

    申请号:EP12187290.7

    申请日:2012-10-04

    IPC分类号: C09J7/02 C09J5/08

    摘要: To provide a heat-expandable removable pressure-sensitive adhesive tape that maintains a high normal adhesive strength during bonding as well as can be readily separated or debonded by heat for separation or debonding even after the storage or use for a long time, regardless of an adherend type.
    The heat-expandable removable pressure-sensitive adhesive tape of the present invention includes at least a blowing agent-containing pressure-sensitive adhesive layer A, a microparticle-containing viscoelastic substrate B, a peelable or peel-assisting film layer C, and a pressure-sensitive adhesive layer D. A multilayer structure containing at least the peelable or peel-assisting film layer C and the pressure-sensitive adhesive layer D is arranged on at least one side of the blowing agent-containing pressure-sensitive adhesive layer A where the blowing agent-containing pressure-sensitive adhesive layer A is in direct contact with the peelable or peel-assisting film layer C. The peelable or peel-assisting film layer C can be removed from the blowing agent-containing pressure-sensitive adhesive layer A by heat treatment after storage in an atmosphere of 75°C for 8 weeks.

    摘要翻译: 提供一种热膨胀性可除去的压敏粘合带确实维持接合期间的高正常的粘接强度以及可以容易地分离或通过热分离或剥离脱粘甚至在存储后,或使用时间长,不管一个 粘类型。 本发明的热膨胀性可除去的压敏粘合剂带包括至少一个吹制压敏粘合剂层A剂含有,含微粒粘弹性基材B,一个剥离性辅助膜层C,和一个压力 敏感的粘合剂层D.一种多层结构,至少包含剥离性辅助膜-C层和压敏粘合剂层D被布置在含热发泡剂压敏粘合剂层A的至少一个侧面,其中 含热发泡剂压敏粘合剂层A与所述剥离性辅助膜层C的剥离性辅助膜-C层可以从含热发泡剂压敏粘合剂层A由被除去的直接接触 存储在75℃气氛中进行8周后热处理。