ONE PART EPOXY RESIN INCLUDING A LOW PROFILE ADDITIVE
    4.
    发明申请
    ONE PART EPOXY RESIN INCLUDING A LOW PROFILE ADDITIVE 审中-公开
    一部分环氧树脂,包括一个低配置添加剂

    公开(公告)号:US20110253943A1

    公开(公告)日:2011-10-20

    申请号:US12762623

    申请日:2010-04-19

    IPC分类号: H01B1/12 C09J163/00

    摘要: An adhesive composition comprising: (i) a one part curable epoxy adhesive and (ii) a low profile additive (LPA), the low profile additive being a polymer that is compatible with the epoxy adhesive such that it forms a single phase when admixed with the adhesive composition and that separates from the adhesive to form a network of stress-absorbing nodules therein when the adhesive is cured, the low profile additive being present in an amount sufficient to prevent or reduce shrinkage and/or the formation of voids or cracks when the adhesive is cured. In one embodiment the LPA is a block copolymer including at least one flexible block and at least one rigid block that makes the low profile additive compatible with the epoxy adhesive such that a mixture of the uncured epoxy resin and the low profile additive forms a homogenous solution and as the epoxy resin is cured, the low profile additive forms a stress absorbing network of nodules in the cured epoxy resin matrix.

    摘要翻译: 一种粘合剂组合物,其包含:(i)一部分可固化环氧粘合剂和(ii)低分子添加剂(LPA),所述低轮廓添加剂是与环氧粘合剂相容的聚合物,使得当与环氧粘合剂混合时形成单相 粘合剂组合物并且当粘合剂固化时,其与粘合剂分离以形成其中的应力吸收结节网络,所述低轮廓添加剂以足以防止或减少收缩和/或形成空隙或裂纹的量存在,当 粘合剂固化。 在一个实施方案中,LPA是包含至少一个柔性嵌段和至少一个刚性嵌段的嵌段共聚物,其使得低轮廓添加剂与环氧粘合剂相容,使得未固化环氧树脂和低轮廓添加剂的混合物形成均匀溶液 并且随着环氧树脂固化,低分子添加剂在固化的环氧树脂基质中形成结节的应力吸收网络。