ADHESIVE ARTICLE
    46.
    发明申请
    ADHESIVE ARTICLE 审中-公开

    公开(公告)号:US20200238670A1

    公开(公告)日:2020-07-30

    申请号:US16849316

    申请日:2020-04-15

    Abstract: Provided are adhesive articles and related methods that use a foam layer including an acrylic polymer or silicone polymer and having a pair of opposing major surfaces. An adhesive surface is disposed on each of the opposing major surfaces and a plurality of channels extend across at least one adhesive surface. The adhesive surface defining the channels contains a pressure-sensitive adhesive having a rheology enabling the plurality of channels to essentially disappear over time when the adhesive article is compressed. Advantageously, the provided articles and methods enable high immediate bond and handling strength, a high degree of wet out, weatherability, and superior aesthetics when used with transparent or translucent substrates.

    Adhesive compositions comprising a silsesquioxane polymer crosslinker, articles and methods

    公开(公告)号:US10370564B2

    公开(公告)日:2019-08-06

    申请号:US15306200

    申请日:2015-06-08

    Abstract: Pressure sensitive adhesive compositions are described comprising at least one low Tg ethylenically unsaturated monomer, and at least one silsesquioxane polymer crosslinker comprising a plurality of ethylenically unsaturated groups. The low Tg ethylenically unsaturated monomer typically has a Tg no greater than 10° C. In some embodiments, the composition comprises at least 50, 55, 60, 65, or 70 wt-% of low Tg ethylenically unsaturated monomer. The low Tg ethylenically unsaturated monomer is typically an alkyl (meth)acrylate comprising 4 to 20 carbon atoms. In another embodiment, an adhesive composition is described comprising a syrup. The syrup comprising i) a free-radically polymerizable solvent monomer; ii) a solute (meth)acrylic polymer comprising polymerized units derived from one or more alkyl (meth)acrylate monomers, and iii) at least one silsesquioxane polymer crosslinker comprising a plurality of ethylenically unsaturated groups. The free-radically polymerizable solvent monomer, polymerized units of the solute (meth)acrylic polymer, or a combination thereof comprise a low Tg ethylenically unsaturated monomer. Also described are pressure sensitive adhesive articles and method of preparing adhesive articles.

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