中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

16 records (took 0.018 seconds)

    Compositions and articles made from branched polyetherimides
    1.
    发明授权
    Compositions and articles made from branched polyetherimides 有权

    公开(公告)号：US11286347B2

    公开(公告)日：2022-03-29

    申请号：US16472150

    申请日：2017-12-29

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Roy Ray Odle ,  Peter Johnson ,  Manojkumar Chellamuthu ,  Hee Won Kong

    IPC: C08G73/10 ,  C08L79/08 ,  C08G73/12

    Abstract: A branched polyimide of the formula (I) wherein G is a group having a valence of t, present in an amount of 0.01 to 10 mol %, or 0.05 to 5 mol %, or 0.1 to 4 mol %, or 0.1 to 3 mol %, each of Q, M, D, V, and R are as defined herein, q is 0 or 1, m is 0 or 1, d is 0 or 1, p is 1 or 2, t is 2 to 6, preferably 2 to 4, and each n is independently the same or different, and is 1 to 1,000, provided that the total of all values of n is greater than 4, wherein the branched polyimide has a zero-shear viscosity in a range from 500 to 15,000 Pa·s, a rheology ratio of 1.1 to 5, and a strain hardening ratio of 1 to 6.

    THERMOPLASTIC POLYIMIDES, METHOD FOR THE MANUFACTURE THEREOF, AND ARTICLES PREPARED THEREFROM
    2.
    发明申请
    THERMOPLASTIC POLYIMIDES, METHOD FOR THE MANUFACTURE THEREOF, AND ARTICLES PREPARED THEREFROM 审中-公开

    公开(公告)号：US20190040201A1

    公开(公告)日：2019-02-07

    申请号：US16073518

    申请日：2017-01-30

    Applicant: SABIC Global Technologies B.V.

    Inventor： Dadasaheb V. Patil ,  Manojkumar Chellamuthu

    IPC: C08G73/10 ,  B29C67/24

    Abstract: A polymer composition including a polyetherimide comprising repeating units of formula (1) and formula (2) [Formula should be inserted here] wherein the repeating units of formula (1) are present in an amount of at least 10 mole %, preferably 20 to 100 mole %, Z is independently at each occurrence derived from a biphenol; Z′ is independently at each occurrence a group of formulas (3) to (13) as defined herein, preferably bisphenol A, 1,2-dihydroxybenzene, 1,1-bis(4-hydroxyphenyl)-1-phenyl-ethane, isophorone bisphenol (1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane), spirobiindane bisphenol, dimethylindanone bisphenol, 3,3′-dimethylbisphenol cyclohexane, or fluorenone bisphenol; and R is independently at each occurrence as a C6-20 aromatic hydrocarbon group or a halogenated derivative thereof, a straight or branched chain C2-20 alkylene group or a halogenated derivative thereof, a C3-8 cycloalkylene group or halogenated derivative thereof; wherein the polyetherimide has a Tg of greater than 200° C.

Patent Agency Ranking