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192 条记录 (耗时 0.028 秒)

    Modified polyvinyl alcohol-based polymer and its application
    4.
    发明授权
    Modified polyvinyl alcohol-based polymer and its application 有权

    公开(公告)号：US11492436B2

    公开(公告)日：2022-11-08

    申请号：US17582202

    申请日：2022-01-24

    申请人： CHANG CHUN PETROCHEMICAL CO., LTD.

    发明人： Jyun-Ru Sun ,  Huan-Ming Chang ,  Cheng-Fan Wang ,  Chia-Hao Hsu

    IPC分类号： C08F261/04 ,  C08F16/06

    摘要： The present disclosure provides a modified polyvinyl alcohol-based polymer, which comprises a modifying monomer unit represented by Formula wherein, X is a moiety comprising an alkenyl group, and the modified polyvinyl alcohol-based polymer has a saponification degree of 67 mol % to 78 mol % and a modification rate of 0.02 mol % to 1.5 mol %. The modified polyvinyl alcohol-based polymer is suitable to be used as a dispersant for suspension polymerization, to make the obtained polyvinyl chloride-based resin have reduced particle diameter and few coarse particles.

    GRAFT COPOLYMER AND USE THEREOF
    5.
    发明申请
    GRAFT COPOLYMER AND USE THEREOF 有权

    公开(公告)号：US20220135723A1

    公开(公告)日：2022-05-05

    申请号：US17513265

    申请日：2021-10-28

    申请人： ETERNAL MATERIALS CO., LTD.

    发明人： WEI-CHIH CHEN

    IPC分类号： C08F261/04 ,  C08F220/06 ,  C08F220/22 ,  C08F220/56 ,  C08F220/18 ,  C08K3/22 ,  H01M4/62

    摘要： The present invention provides a polyvinyl alcohol graft copolymer including a polyvinyl alcohol main chain. The polyvinyl alcohol graft copolymer includes branched chains including structural units derived from the following monomers: (a) a fluorine-including ethylenically unsaturated monomer, (b) an ethylenically unsaturated carboxylic acid monomer, and (c) an ethylenically unsaturated amide monomer. The present invention also provides an aqueous binder composition, and an electrode slurry composition including the polyvinyl alcohol graft copolymer.

    RADIOPAQUE POLYMERS
    7.
    发明申请
    RADIOPAQUE POLYMERS 有权

    公开(公告)号：US20210277162A1

    公开(公告)日：2021-09-09

    申请号：US17252560

    申请日：2019-12-26

    申请人： BIOCOMPATIBLES UK LIMITED

    发明人： Andrew Lennard LEWIS ,  Hugh BRITTON ,  Yiqing TANG ,  Jonathan VINCE ,  Koorosh ASHRAFI ,  Damien GUEGAN

    IPC分类号： C08F261/04 ,  A61K9/16 ,  A61K9/00 ,  C08G67/00 ,  A61L24/00 ,  A61K49/04 ,  A61L24/04

    摘要： A hydrophilic polymer comprising pendent groups of the formula I: Wherein: W is independently selected from —OH, —COOH, —SO3H, —OPO3H, —O—(C1-4alkyl), —O—(C1-4alkyl)OH, —O—(C1-4alkyl)R2, —O—(C2H5O)qR1—(C═O)—O—C1-4alkyl and —O—(C═O)C1-4alkyl; or a group —BZ; wherein —OH, COOH, O—PO3H and SO3H maybe in the form of a pharmaceutically acceptable salt; wherein: B is a bond, or a straight branched alkanediyl, oxyalkylene, alkylene oxaalkylene, or alkylene (oligooxalkylene) group, optionally containing one or more fluorine substituents; and Z is an ammonium, phosphonium, or sulphonium phosphate or phosphonate ester zwitterionic group; X is either a bond or a linking group having 1 to 8 carbons and optionally 1 to 4 heteroatoms selected from O, N and S; G is a coupling group through which the group of the formula I is coupled to the polymer and is selected from ether, ester, amide, carbonate, carbamate, 1,3 dioxolone, and 1,3 dioxane; R1 is H or C1-4 alkyl; R2 is —COOH, —SO3H, or —OPO3H2 q is an integer from to 4; n is an integer from 1 to 4; p is an integer from 1 to 3; and n+p is from 2 to 5; and wherein —COOH, —OPO3H2 and —SO3H as well as phenolic —OH maybe in the form of a pharmaceutically acceptable salt.

    PVA hydrogels having improved creep resistance, lubricity, and toughness
    8.
    发明授权
    PVA hydrogels having improved creep resistance, lubricity, and toughness 有权

    公开(公告)号：US10696802B2

    公开(公告)日：2020-06-30

    申请号：US15938036

    申请日：2018-03-28

    申请人： THE GENERAL HOSPITAL CORPORATION

    发明人： Orhun K. Muratoglu ,  Hatice Bodugoz-Senturk

    IPC分类号： C08J3/075 ,  C08F261/04 ,  C08F283/00

    摘要： The invention provides creep resistant, lubricious and tough PVA-PAAm-hydrogels, creep resistant, lubricious, tough PVA-PAAm-hydrogel-containing compositions, and methods of making the same. The invention also provides methods of implanting or administering the creep resistant, lubricious and tough PVA-PAAm-hydrogels, or the PVA-PAAm-hydrogel-containing compositions to treat a subject in need. Methods of cross-linking pre-solidified or pre-gelled hydrogel particles and making cross-linked PVA-PAAm-hydrogels, and cross-linked PVA-PAAm-hydrogel-containing compositions also are disclosed herein.