Adhesive composition
    3.
    发明授权

    公开(公告)号:US09458361B2

    公开(公告)日:2016-10-04

    申请号:US14650946

    申请日:2013-12-03

    摘要: An curable adhesive composition that can form a cured product exhibiting high shear adhesion strength, peel adhesion strength and impact adhesion strength and exhibiting, in particular, excellent cold/hot cycle resistance of adhesion strength, includes (a) a 2-cyanoacrylic acid ester, (b) a high molecular-weight component, such as a polymer, compatible with the 2-cyanoacrylic acid ester, (c) a multifunctional 2-cyano-3-vinylacrylic acid ester, and (d) an onium salt represented by the following general formula (1): C+A−  (1) wherein C+ represents an onium cation, A− represents an anion such provided that the anion does not substantially initiate polymerization of the 2-cyanoacrylic acid, in which the curable adhesive contains components (b)-(d) in predetermined amounts relative to 100 parts by mass of the component (a).

    LIGHT-CURABLE COMPOSITIONS USEFUL FOR FORMING COMPOSITE MATERIALS

    公开(公告)号:US20220213245A1

    公开(公告)日:2022-07-07

    申请号:US17606105

    申请日:2020-04-23

    申请人: Arkema France

    摘要: Composite materials are formed by photo curing compositions containing one or more cyanoacrylates, substantial amounts of one or more fillers (in particular, opaque and/or fibrous fillers such as carbon fibers) as well as particular photoinitiator systems. The photoinitiator system may comprise, for example, a metallocene compound such as a ferrocene in combination with an acylgermane or other photocleavable compound which generates an acyl radical when exposed to light. Complete, deep curing of such compositions to provide composite materials having improved mechanical properties can be achieved, even though the light used to initiate curing may not be capable of penetrating the entire thickness of the composition due to the presence of the filler.