中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

26 records (took 0.022 seconds)

    Polymers having N-vinyl amide and hydroxyl moieties, their compositions and the uses thereof
    12.
    发明授权
    Polymers having N-vinyl amide and hydroxyl moieties, their compositions and the uses thereof 有权

    公开(公告)号：US11072675B2

    公开(公告)日：2021-07-27

    申请号：US16125176

    申请日：2018-09-07

    Applicant: ISP INVESTMENTS LLC

    Inventor： Osama M. Musa ,  Cuiyue Lei

    IPC: C08F226/06 ,  C09K8/52 ,  C09K8/22

    Abstract: The invention relates to polymers derived at least from one: (A) one N-vinyl amide unit, and (B) one hydroxyl-containing acrylate unit, and to polymers derived at least from: (A) N-vinyl-2-caprolactam, and (B) one non-acrylate unit having: (i) at least one hydroxyl group, and/or (ii) at least one functional group convertible to a hydroxyl group wherein at least one group is converted to hydroxyl functionality in the final polymer product. Such polymers may exhibit degradability, e.g., in seawater or soil environments. In preferred embodiments, these polymers and compositions thereof are used in oilfield applications, such as an inhibitor of gas hydrates and/or a kinetic inhibitor of gas hydrates. The polymer can assume alternating, block, and/or random configurations of the repeating units, with at least one ester group. The chemical structure subscripts m, and n may be any integer equal to or greater than 1.

    4- and 5-substituted 1,2,3-triazole, and regioisomer mixtures thereof, modified polymers
    14.
    发明授权
    4- and 5-substituted 1,2,3-triazole, and regioisomer mixtures thereof, modified polymers 有权

    公开(公告)号：US10899919B2

    公开(公告)日：2021-01-26

    申请号：US15018221

    申请日：2016-02-08

    Applicant: ISP INVESTMENTS LLC

    Inventor： Brian B. Marr ,  Osama M. Musa

    IPC: C08F220/08 ,  C08L33/00 ,  C07D403/12 ,  A61K8/81 ,  A61K47/32 ,  A61Q19/00 ,  C11D3/37

    Abstract: Provided are novel 4- and 5-substituted 1,2,3-triazoles, and regioisomer mixtures thereof, modified polymers, wherein the substituted 1,2,3-triazoles are modified by reaction with a modifying polymer (maleic anhydride based polymer). Depending upon the ratio of the substituted 1,2,3-triazole to the maleic anhydride based polymer employed, the resulting modified polymers can provide maleic anhydride based polymers that are partially or fully reacted with the substituted 1,2,3-triazoles. The resulting modified polymers may be partially or fully opened to provide amic acids, carboxylic acids, carboxylic acidic salts, imides, or esters. The novel 4- or 5-substituted 1,2,3-triazoles, and regioisomer mixtures thereof, modified polymers can be converted to a wide variety of useful polymers and may be employed in a wide variety of compositions. An example of a modified polymer may be represented by the structure: formula: (1) wherein m, n, and q are defined herein.

Patent Agency Ranking