ADHESIVES COMPRISING EPOXY-ACID CROSSLINKED GROUPS AND METHODS
    32.
    发明申请
    ADHESIVES COMPRISING EPOXY-ACID CROSSLINKED GROUPS AND METHODS 有权
    包含环氧交联基团的粘合剂和方法

    公开(公告)号:US20140272407A1

    公开(公告)日:2014-09-18

    申请号:US14194840

    申请日:2014-03-03

    Abstract: Adhesives compositions and methods of preparing adhesive compositions are described. The methods generally comprise a) providing a syrup composition comprising i) a free-radically polymerizable solvent monomer; and ii) a solute (meth)acrylic copolymer; and b) radiation curing the syrup composition in the absence of an ionic photoacid generator. In one embodiment, the solute (meth)acrylic copolymer as provided or during curing comprises repeat units derived from at least one alkyl(meth)acrylate monomer, at least one ethylenically unsaturated monomer comprising an acid-functional group; and at least one (meth)acryloyl monomer comprising an epoxy-functional group; and the acid-functional groups crosslink with the epoxy-functional groups. In another embodiment, the solute (meth)acrylic copolymer comprising repeat units derived from at least one alkyl(meth)acrylate monomer and at least one ethylenically unsaturated monomer comprising an acid-functional group; and an epoxy resin, having on average greater than one polymerizable epoxy group per molecule, crosslinks the acid-functional groups.

    Abstract translation: 描述了制备粘合剂组合物的粘合剂组合物和方法。 方法通常包括:a)提供糖浆组合物,其包含i)可自由基聚合的溶剂单体; 和ii)溶质(甲基)丙烯酸共聚物; 和b)在不存在离子型光酸产生剂的情况下辐射固化糖浆组合物。 在一个实施方案中,所提供的或在固化期间的溶质(甲基)丙烯酸共聚物包含衍生自至少一种(甲基)丙烯酸烷基酯单体的重复单元,至少一种包含酸官能团的烯属不饱和单体; 和至少一种包含环氧官能团的(甲基)丙烯酰基单体; 酸官能团与环氧官能团交联。 在另一个实施方案中,包含衍生自至少一种(甲基)丙烯酸烷基酯单体和至少一种包含酸官能团的烯属不饱和单体的重复单元的溶质(甲基)丙烯酸共聚物; 和每分子平均具有大于一个可聚合环氧基团的环氧树脂交联酸官能团。

    CROSSLINKABLE COMPOSITIONS INCLUDING A LATENT UV-ABSORBER

    公开(公告)号:US20250059350A1

    公开(公告)日:2025-02-20

    申请号:US18722212

    申请日:2022-12-21

    Abstract: Provided are crosslinkable compositions comprising a (meth)acrylate polymer, where the polymer has a glass transition temperature no greater than 30° C.; a crosslinking agent, the crosslinking agent comprising a photo-active Type II photoinitiator and a polymerizable group selected from the group consisting of (meth)acrylate, allyl, and combinations thereof; and a UV absorbing material represented by the structure (I) where each of X1, X2, X3, and X4 is independently a hydrogen atom, a hydrocarbyl group including 1 to 15 carbon atoms, preferably 12 carbon atoms, or a heterohydrocarbyl group including 1 to 15 carbon atoms, preferably 12 carbon atoms.

    Optically clear pressure sensitive adhesive article

    公开(公告)号:US10954413B2

    公开(公告)日:2021-03-23

    申请号:US15324925

    申请日:2015-07-01

    Inventor: Jason D. Clapper

    Abstract: An optically clear pressure sensitive adhesive article is described herein that includes a pressure sensitive adhesive film disposed on a substrate. The pressure sensitive adhesive film includes an optically clear adhesive composition formed by polymerizing a mixture of monomers that includes at least one (C1-C18)alkyl (meth)acrylate monomer and at least one polar (meth)acrylate monomer, and surface-modified fumed silica disposed in the optically clear pressure sensitive adhesive composition. The pressure sensitive adhesive film has a haze value in a range of 0 to 5% and a visible light transmittance value of 85 to 100%. Methods for making an optically clear pressure sensitive adhesive article are also described.

    ACRYLIC-BASED FLEXIBLE ASSEMBLY LAYER
    40.
    发明申请

    公开(公告)号:US20180291240A1

    公开(公告)日:2018-10-11

    申请号:US15573938

    申请日:2016-06-01

    Abstract: The present invention is an assembly layer for a flexible device. The assembly layer is derived from precursors that include an alkyl(meth)acrylate ester having 1 to 24 carbon atoms in the alkyl group and a free-radical generating initiator. Within a temperature range of between −30° C. to 90° C., the assembly layer has a shear storage modulus at a frequency of 1 Hz that does not exceed 2 MPa, a shear creep compliance (J) of at least 6×10″6 1/Pa measured at 5 seconds with an applied shear stress between 50 kPa and 500 kPa, and a strain recovery of at least 50% at at least one point of applied shear stress within the range of 5 kPa to 500 kPa within 1 minute after removing the applied shear stress. In a preferred embodiment, the flexible device is a flexible electronic display.

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