Primerless multilayer adhesive film for bonding glass substrates
    2.
    发明授权
    Primerless multilayer adhesive film for bonding glass substrates 有权
    用于粘合玻璃基板的无底漆多层粘合膜

    公开(公告)号:US09260632B2

    公开(公告)日:2016-02-16

    申请号:US14349912

    申请日:2012-10-05

    Abstract: A multilayer pressure sensitive adhesive (PSA) film having a first pressure sensitive adhesive layer for bonding glass substrates and at least a second opposing layer, the first pressure sensitive adhesive layer being a polymerization reaction product of a precursor comprising a monomer or a partially prepolymerized monomer, having a curable ethylenically unsaturated group, whereas the precursor further comprises an oligomeric organofunctional silicone having at least 2 Si atoms, in particular 2 to 10 Si atoms, wherein the monomer having a curable ethylenically unsaturated further has a coupling group with a Zerewitinow-active H-atom and wherein the oligomeric organofunctional silicone has at least one coupling group which is reactive to the coupling group of the monomer having a curable ethylenically unsaturated group, or wherein the oligomeric organofunctional silicone has at least one coupling group with a Zerewitinow-active H-atom and wherein the monomer having a curable ethylenically unstaurated further has a coupling group which is reactive to the coupling group of the oligomeric organofunctional silicone; with the proviso that if the monomer having a curable ethylenically unsaturated group further has a coupling group with a Zerewitinow-active H-atom which is selected to be —OH, then the coupling group of the oligomeric organofunctional silicone which is reactive to the coupling group of the monomer having a curable ethylene group cannot be selected to be an amino group.

    Abstract translation: 一种多层压敏粘合剂(PSA)膜,其具有用于粘合玻璃基板的第一压敏粘合剂层和至少第二相对层,所述第一压敏粘合剂层是包含单体或部分预聚单体的前体的聚合反应产物 具有可固化的烯键式不饱和基团,而前体还包含具有至少2个Si原子,特别是2至10个Si原子的低聚有机官能硅氧烷,其中具有可固化烯键式不饱和基团的单体还具有与Zerewitinow活性 并且其中所述低聚有机官能硅氧烷具有至少一个与具有可固化烯键式不饱和基团的单体的偶联基反应的偶联基团,或其中所述低聚有机官能硅氧烷具有至少一个具有Zerewitinow活性H 原子,其中所述单体具有可固化的乙烯 进一步具有与低聚有机官能硅氧烷的偶联基团反应的偶联基团; 条件是如果具有可固化烯键式不饱和基团的单体还具有与被选择为-OH的Zerewitinow-活性H原子的偶联基团,则与偶联基团反应的低聚有机官能硅氧烷的偶联基团 的具有可固化的亚乙基的单体不能选择为氨基。

    ADHESIVE FILM, ADHESIVE SYSTEM, AND RELATED PROCESSES

    公开(公告)号:US20250066646A1

    公开(公告)日:2025-02-27

    申请号:US18720807

    申请日:2022-12-16

    Abstract: An adhesive film includes a first (meth)acrylate copolymer containing at least 55 weight percent (wt. %) of linear or branched alkyl (meth)acrylate monomer units, from 15 to 40 wt. % of (meth)acrylic acid monomer units, and 0.1 to 5 wt. % of monomer units of a crosslinking monomer having more than one (meth)acrylate group. If the first (meth)acrylate copolymer comprises 15 wt. % (meth)acrylic acid monomer units, the first (meth)acrylate copolymer comprises at least five wt. % monomer units of a high Tg monomer. The adhesive film comprises not more than five wt. % of a further (meth)acrylate copolymer comprising from 0.1 to 15 wt. % of (meth)acrylic acid monomer units. The adhesive film can be a multilayer adhesive assembly including a first layer of the first (meth)acrylate copolymer and a second adhesive layer adjacent to the first layer. A process for making and a system including the adhesive film and a primer are also described.

    PRESSURE-SENSITIVE ADHESIVE COMPOSITION WITH TRANSPARENCY CHARACTERISTICS

    公开(公告)号:US20220169897A1

    公开(公告)日:2022-06-02

    申请号:US17442410

    申请日:2020-03-20

    Abstract: The present disclosure relates to a pressure sensitive adhesive composition comprising a blend of: a) a (meth)acrylate-based (co)polymer base component; and b) a (meth)acrylate-based copolymeric additive comprising the free-radical random copolymerization reaction product of a copolymerizable material comprising: i. C1-C32 acrylic acid ester monomer units; ii. greater than 10 wt. % of C1-C18 methacrylic acid ester monomer units, based on the total weight of the (meth)acrylate-based copolymeric additive; and iii. ethylenically unsaturated monomer units having a functional group, which are copolymerizable with monomer units (i) and/or (ii); wherein the (meth)acrylate-based copolymeric additive has a weight average molecular weight (Mw) greater than 10,000 Daltons and a Tg no greater than 50° C., as estimated by the Fox equation. According to another aspect, the present disclosure is directed to a multilayer pressure sensitive adhesive assembly comprising at least a first polymer layer and a second pressure sensitive adhesive layer adjacent to the first polymer layer, wherein the second pressure sensitive adhesive layer has a composition as described above. According to still another aspect of the present disclosure, it is provided a method for manufacturing a pressure sensitive adhesive composition as described above. In yet another aspect, the present disclosure relates to the use of a pressure sensitive adhesive composition or multilayer pressure sensitive adhesive assembly as described above for the bonding to a medium surface energy substrate or a high surface energy substrate.

    MULTILAYER PRESSURE-SENSITIVE ADHESIVE ASSEMBLY

    公开(公告)号:US20220177739A1

    公开(公告)日:2022-06-09

    申请号:US17270701

    申请日:2019-08-15

    Abstract: The present disclosure relates to a multilayer pressure sensitive adhesive assembly comprising at least a first pressure sensitive adhesive layer and a second pressure sensitive adhesive layer adjacent to the first pressure sensitive adhesive layer, wherein the first pressure sensitive adhesive layer and the second pressure sensitive adhesive layer comprise a polymer base material selected from the group of polyacrylates, wherein the second pressure sensitive adhesive layer has a thickness no greater than 250 micrometres and comprises silica nanoparticles having an average particle size no greater than 400 nm when measured by Dynamic Light Scattering (DLS) techniques according to the test method described in the experimental section, and wherein the first pressure sensitive adhesive layer has a thickness in a range from 250 to 5000 micrometres and is substantially free of particulate filler material. According to another aspect, the present disclosure is directed to an article comprising a medium surface energy substrate and a multilayer pressure sensitive adhesive assembly as described above adjacent to the medium surface energy substrate. In another aspect, the present disclosure relates to the use of a multilayer pressure sensitive adhesive assembly as described above for the bonding to a medium surface energy substrate or a high surface energy substrate.

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