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1175 条记录 (耗时 0.031 秒)

    Reactions enabled by thermoresponsive and photoresponsive gels
    61.
    发明授权
    Reactions enabled by thermoresponsive and photoresponsive gels 有权

    公开(公告)号：US11041026B2

    公开(公告)日：2021-06-22

    申请号：US16080536

    申请日：2018-01-30

    申请人： Massachusetts Institute of Technology

    发明人： Jeremiah A. Johnson ,  Mao Chen

    IPC分类号： C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C08F2/38 ,  C08F4/40 ,  C08F293/00

    摘要： Disclosed are methods, compositions, kits, and reagents to prepare compounds (e.g. polymers and small molecules) via radical reactions by utilizing thermoresponsive and photoresponsive gels. This invention discloses the preparation of polymers via controlled radical polymerizations from an iniferter or initiator, one or more reactant monomer, and a thermoresponsive and photoresponsive gel. Embodiments of the invention show that the polymerization is reversibly activated and/or deactivated by controlling one or more of the following external control stimuli: temperature, light, and catalyst presence. This invention also relates the preparation of Gel-PTH, a heterogeneous thermoresponsive and photoresponsive gel.

    Manufacturing method for low molecular weight polytetrafluoroethylene, and powder
    64.
    发明授权
    Manufacturing method for low molecular weight polytetrafluoroethylene, and powder 有权

    公开(公告)号：US11028239B2

    公开(公告)日：2021-06-08

    申请号：US16967875

    申请日：2019-02-05

    申请人： DAIKIN INDUSTRIES, LTD.

    发明人： Masayuki Tsuji ,  Hirotoshi Yoshida

    IPC分类号： C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C08J3/28 ,  C08J3/12

    摘要： Provided is a method for producing low molecular weight polytetrafluoroethylene less likely to generate C6-C14 perfluorocarboxylic acids and salts thereof. The method for producing low molecular weight polytetrafluoroethylene includes: (1) feeding into an airtight container: high molecular weight polytetrafluoroethylene: and a gas mixture containing an inert gas and oxygen and having an oxygen content relative to the total of the inert gas and oxygen of 1 to 10 vol %; and (2) irradiating the high molecular weight polytetrafluoroethylene to provide low molecular weight polytetrafluoroethylene having a melt viscosity at 380° C. of 1.0×102 to 7.0×105 Pa·s.

    Self-adhesive dental composite resin
    66.
    发明授权
    Self-adhesive dental composite resin 有权

    公开(公告)号：US10987281B2

    公开(公告)日：2021-04-27

    申请号：US16343885

    申请日：2017-10-20

    申请人： KURARAY NORITAKE DENTAL INC.

    发明人： Shumei Ishihara ,  Yamato Nojiri ,  Mitsuru Takei ,  Kenji Hatanaka

    IPC分类号： C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  A61K6/30 ,  A61K6/887 ,  C08F222/10 ,  C08K3/36 ,  C08K9/06

    摘要： The present invention provides a self-adhesive dental composite resin maintaining mechanical strength, showing excellent storage stability, undergoing little change in transparency and properties of the paste during long-term storage, and having a small solidification risk during long-term storage. The present invention relates to a self-adhesive dental composite resin comprising: an acid group-containing (meth)acrylic polymerizable monomer (a); a polyfunctional (meth)acrylic polymerizable monomer (b) containing no acid group; a photopolymerization initiator (c); and a filler (d), wherein the filler (d) is treated with a surface treatment agent and has an average particle diameter of 0.01 to 50.0 μm, the surface treatment agent comprises a silane coupling agent (A) represented by the following general formula (1): CH2═C(R1)—COO—(CH2)p—Si—R2qR3(3-q)  (1), and an organosilazane (B) represented by the following general formula (2): R4R5R6—Si—NH—Si—R7R8R9  (2).

    COMPOSITION AND SUBSTRATE-TREATING METHOD
    67.
    发明申请
    COMPOSITION AND SUBSTRATE-TREATING METHOD 有权

    公开(公告)号：US20210115221A1

    公开(公告)日：2021-04-22

    申请号：US17134593

    申请日：2020-12-28

    申请人： JSR CORPORATION

    发明人： Shun Aoki ,  Takashi Katagiri ,  Kazunori Takanashi ,  Motoyuki Shima

    IPC分类号： C08K5/092 ,  C08G61/10 ,  C08G61/04 ,  H01L21/02 ,  B08B7/00

    摘要： A composition enables particles to be removed from a surface of a substrate by: applying the composition on the surface of the substrate to form a substrate treatment film on the surface; and bringing a liquid into contact with the substrate treatment film to remove the substrate treatment film from the surface. The composition includes a resin; and a solvent. The solvent includes a first solvent component having a normal boiling point of no less than 175° C. A content of the first solvent component with respect to 100 parts by mass of the resin is no less than 1 part by mass.

    Fluorine-containing acetophenone derivative, fluroine based additive, curable composition including same, and cured product thereof
    70.
    发明授权
    Fluorine-containing acetophenone derivative, fluroine based additive, curable composition including same, and cured product thereof 有权

    公开(公告)号：US10961405B2

    公开(公告)日：2021-03-30

    申请号：US16564349

    申请日：2019-09-09

    申请人： DIC Corporation

    发明人： Masanori Miyamoto ,  Yu Asano

    IPC分类号： C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C09D7/65 ,  C09D7/45 ,  C08G65/333 ,  C09D175/14

    摘要： The invention provides a fluorine-containing acetophenone derivative which is useful as an additive that can impart excellent antifouling properties and scratch resistance to the surface of a cured coating and that also offers high transparency of the coating; a fluoroadditive and an active energy ray curable composition which each include the above derivative; a cured product of the composition; and an article having a cured coating of the composition. Specifically, this object is achieved by using a fluorine-containing acetophenone derivative, typically represented by the structural formula below, that is obtained by introducing an acryloyl group into a poly(perfluoroalkylene ether) chain and thereafter introducing, using Michael addition reaction, an α-aminoacetophenone-based structural unit capable of generating radical species by photocleavage