COMPOSITION ELASTOMERE SILICONE ADHESIVE
    6.
    发明公开
    COMPOSITION ELASTOMERE SILICONE ADHESIVE 审中-公开
    ELASTOMERIC硅粘合剂组合物

    公开(公告)号:EP2173939A2

    公开(公告)日:2010-04-14

    申请号:EP08786623.2

    申请日:2008-07-30

    发明人: POUCHELON, Alain

    摘要: The present invention relates to a high-performance silicone elastomer composition that is adhesive and that can be crosslinked at high temperature for the assembly of silicone-based substrates, both by platinum and peroxide catalysis, and that may lend itself to a strip conformation. The composition comprises at least one gum, one catalyst and one adhesion promoter of polyorganohydrogensiloxane type, the nature and the amount of said adhesion promoter having been chosen so that Si-H groups are in excess following the reaction for crosslinking the composition, so as to obtain a potential surface density of covalent Si- bonds with the silicone substrate to be bonded of at least one covalent Si- bond per 60 nm2.

    COMPOSITION SILICONE RETICULABLE POUR LA REALISATION DE REVETEMENTS ANTI-ADHERENTS POUR FILMS POLYMERES
    7.
    发明授权
    COMPOSITION SILICONE RETICULABLE POUR LA REALISATION DE REVETEMENTS ANTI-ADHERENTS POUR FILMS POLYMERES 有权
    可固化硅组合为不粘涂料聚合物电影的制作

    公开(公告)号:EP2024438B1

    公开(公告)日:2010-01-27

    申请号:EP07729749.7

    申请日:2007-05-31

    IPC分类号: C08L83/04 C09D183/04

    摘要: This invention concerns cross-linkable silicon compositions that can be used, in particular, to form coatings or water repellent and non-stick film preferably for flexible supports such as synthetic or natural polymer films, for example PET. These compositions are of the types which include crosslinking polyorganosiloxanes bearing Si-H units and unsaturated polyorganosiloxanes preferably containing vinyl, capable of reacting with the crosslinking agent by addition reaction in the presence of platinum to form a release crosslinked non-stick coat on the flexible support. The aim is to propose new liquid coating silicon compositions with no solvents, crosslinkable and non-stick and/or water repellent coating for flexible supports, quasi instantaneous and producing crosslinkable silicon coating of very high quality, in particular with regard to hook/tackiness on a ' high rub-off ' support and anti-stick feature (sufficient high-speed breakaway force). To reach this goal, the invention proposes silicon compositions with the silicon compound ingredient A alcenylated PolyOrganoSiloxane (POS) containing an F1 fraction and an F2 fraction that are different from each other; F2, the adherence enhancer comprising a linear monoalcenylated silicon oil (A2.1) at one of its ends and/or a long linear α,ω, -alcenylated silicon oil (A2.2) and/or a 'weakly alcenylated linear oil. Applications: non-stick silicon coatings obtained from crosslinking/polyaddition for PET.