知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

327 条记录 (耗时 0.021 秒)

    Photopolymerization synergist
    6.
    发明授权
    Photopolymerization synergist 有权

    公开(公告)号：US11421049B2

    公开(公告)日：2022-08-23

    申请号：US17090221

    申请日：2020-11-05

    申请人： Piedmont Chemical Industries, LLC

    发明人： Paul D. Weipert ,  Theodosios Diplas ,  Michael Christian Meers

    IPC分类号： C08F2/50 ,  C08F222/20

    摘要： An a photopolymerization formulation is provided as is an improved method for forming an object using the formulation. The formulation comprises a polymerizable ethylenically unsaturated monomer, oligomer or polymer; a photoinitiator; and a synergist selected from the group consisting of Formula I, Formula II and Formula III; wherein: R1, R4, R6 and R9 are independently selected from an alkene, a cyclic olefin, aryl, cyclic heteroatom containing group or acylic heteroatom containing group each of which is optionally substituted; R2 and R8 are independently selected from hydrogen; linear or branched alkyl of 1 to 10 carbons; aryl; —C(O)R10; —NR11R12; or —COR15; R3, R5 and R7 are independently selected from hydrogen, saturated or unsaturated, cyclic or acyclic, optionally substituted alkyl of 1-20 carbons or optionally substituted aryl of no more than four fused aromatic rings; R2 and R3 or R7 and R8 may be taken together in each Formula to form a saturated or unsaturated optionally substituted ring; R10 and R15 independently a saturated or unsaturated, cyclic or acyclic, optionally substituted alkyl of 1-20 carbons; carboxylic acid; ketone or an ester; and R11 and R12 are independently selected from hydrogen; saturated or unsaturated, cyclic or acyclic, optionally substituted alkyl of 1-20 carbons; optionally substituted aryl with up to five fused aromatic rings.

    Liquid crystal elastomers
    7.
    发明授权
    Liquid crystal elastomers 有权

    公开(公告)号：US11214642B2

    公开(公告)日：2022-01-04

    申请号：US16653876

    申请日：2019-10-15

    申请人： Government of the United States as Represented by the Secretary of the Air Force

    发明人： Nicholas P Godman ,  Timothy J White ,  Hilmar Koerner ,  Benjamin A Kowalski ,  Anesia D Auguste ,  Tyler C Guin

    IPC分类号： C08F222/20 ,  C08J5/12 ,  C09D135/02

    摘要： Shape-programmable liquid crystal elastomers. The shape-programmable liquid crystal elastomers being synthesized by filling an alignment cell with liquid crystal monomers. The liquid crystal monomers align to a surface of the alignment cell and then are polymerized with a dithiol chain transfer agent. The alignment cell is configured to impose a director orientation on a portion of the shape-programmable liquid crystal elastomer. For some embodiments, liquid crystal elastomer laminates are prepared by arranging a plurality of liquid crystal elastomers such that a director orientation of each liquid crystal elastomer of the plurality is in registered alignment with an adjacent liquid crystal elastomer of the plurality. The arrangement is secured and the plurality of liquid crystal elastomers cured.

    Antifouling film and polymerizable composition
    10.
    发明授权
    Antifouling film and polymerizable composition 有权

    公开(公告)号：US10800868B2

    公开(公告)日：2020-10-13

    申请号：US16690185

    申请日：2019-11-21

    申请人： Sharp Kabushiki Kaisha

    发明人： Yasuhiro Shibai ,  Tokio Taguchi ,  Kenichiro Nakamatsu

    IPC分类号： C08F222/20 ,  G02B1/18

    摘要： An antifouling film includes: a substrate; and a polymer layer disposed on a surface of the substrate and including on a surface thereof an uneven structure provided with projections at a pitch not longer than a wavelength of visible light. The polymer layer is a cured product of a polymerizable composition. The polymerizable composition contains, in terms of active components, 75 to 95 wt % of a polymerizable monomer, 2.5 to 12.5 wt % of a urethane acrylate containing fluorine and an ester, and 2.5 to 9 wt % of a perfluoroalkyl-based monomer containing one (meth)acryloyl group for each molecule. The polymerizable monomer contains a bifunctional acrylate that contains an ethylene oxide group and a multifunctional acrylate that contains no ethylene oxide group. The perfluoroalkyl-based monomer has a fluorine atom concentration of 50 to 60 wt %. The polymerizable composition has an ethylene oxide group concentration of 20 to 50 wt %.