METHOD OF PRODUCING PHENOLIC RESIN FOAM
    21.
    发明申请

    公开(公告)号:US20190352484A1

    公开(公告)日:2019-11-21

    申请号:US16524549

    申请日:2019-07-29

    摘要: A method of producing a phenolic resin foam is provided. The method includes foaming and curing, on a surface material, a foamable phenolic resin composition containing a phenolic resin, a surfactant, a curing catalyst, and at least one selected from the group consisting of a chlorinated hydrofluoroolefin, a non-chlorinated hydrofluoroolefin, and a halogenated hydrocarbon. The phenolic resin has a weight average molecular weight Mw of at least 400 and no greater than 3,000 as determined by gel permeation chromatography. The phenolic resin has a viscosity at 40° C. of at least 1,000 mPa·s and no greater than 100,000 mPa·s. The phenolic resin has a viscosity increase rate constant of at least 0.05 (1/min) and no greater than 0.5 (1/min).

    NOVOLAC RESIN AND RESIST FILM
    29.
    发明申请

    公开(公告)号:US20180346635A1

    公开(公告)日:2018-12-06

    申请号:US15779210

    申请日:2016-11-17

    申请人: DIC Corporation

    发明人: Tomoyuki Imada

    摘要: Provided is a novolac resin having excellent developability, heat resistance, and dry etching resistance, and a resist film. A novolac resin includes a cyclic novolac resin (A) having a molecular structure represented by Structural Formula (1): (in the formula, α is a structural moiety (α) represented by Structural Formula (2): n is an integer of 2 to 10), in which at least one of X's present in the resin is any one of a tertiary alkyl group, an alkoxyalkyl group, an acyl group, an alkoxycarbonyl group, a hetero atom-containing cyclic hydrocarbon group, and a trialkylsilyl group, at least one of the structural moieties (α) present in the resin is a structural moiety (α1) in which l is 1, and at least one thereof is a structural moiety (α2) in which l is 2.

    Composition for friction material
    30.
    发明授权

    公开(公告)号:US10125256B2

    公开(公告)日:2018-11-13

    申请号:US15132708

    申请日:2016-04-19

    IPC分类号: C08L61/06 F16D69/02

    摘要: A composition is provided having at least one binder, and a fiber substrate. The fiber substrate has organic fibers and metallic fibers, the amount of metallic fibers being superior or equal to the amount of organic fibers. The composition further has at least one oxide compound (A) selected among at least one silicate compound (A1), at least one phosphate compound (A2), and any mixture thereof.