Method for producing copolymer, copolymer produced therefrom, and thermoplastic resin composition including the same

    公开(公告)号:US12146013B2

    公开(公告)日:2024-11-19

    申请号:US17606710

    申请日:2020-10-27

    Applicant: LG CHEM, LTD.

    Abstract: The present invention relates to a method for producing a copolymer, the method for producing a copolymer including: step (S10) for adding aromatic vinyl-based monomers substituted with alkyl groups and vinyl cyan-based monomers to perform polymerization in the presence of a polymerization initiator, wherein the vinyl cyan-based monomers are collectively added before initiation of the polymerization in step (S10), monomer droplets are continuously divisionally added during the polymerization in step (S10), and the monomer droplets contain part or all of the aromatic vinyl-based monomers substituted with alkyl groups, and relates to a copolymer produced therefrom, and a thermoplastic resin composition including the same.

    COPOLYMER, POSITIVE RESIST COMPOSITION, AND METHOD OF FORMING RESIST PATTERN

    公开(公告)号:US20230288805A1

    公开(公告)日:2023-09-14

    申请号:US17998927

    申请日:2021-06-11

    Inventor: Manabu HOSHINO

    CPC classification number: G03F7/0397 C08F212/12 C08F220/68 C08F2800/10

    Abstract: A copolymer includes a monomer unit (A) represented by formula (I), shown below, and a monomer unit (B) represented by formula (II), shown below, and has a weight-average molecular weight of 230,000 or more. In the formulae, L is a single bond or a divalent linking group, Ar is an optionally substituted aromatic ring group, R1 is an alkyl group, R2 is hydrogen, an alkyl group, a halogen atom, a haloalkyl group, a hydroxy group, a carboxy group, or a halocarboxy group, p is an integer of not less than 0 and not more than 5, and in a case in which more than one R2 is present, each R2 may be the same or different.

    Composition, polymer, and method of producing substrate

    公开(公告)号:US11578230B2

    公开(公告)日:2023-02-14

    申请号:US17196006

    申请日:2021-03-09

    Abstract: A method of producing a substrate includes: applying a composition on a metal basal plate to form a coating film; and forming a metal-containing layer on at least a part of the coating film. The composition contains a solvent, and a polymer having a first terminal structure and a second terminal structure in a single molecule. Each of the first terminal structure and the second terminal structure is at least one selected from the group consisting of a structure represented by formula (1) and a structure represented by formula (2). A1 and A2 each independently represent a monovalent group having a functional group capable of forming a chemical bond with a metal atom. L2 represents —S—, —NR—, or —NA22-, wherein A22 represents a monovalent group having a functional group capable of forming a chemical bond with a metal atom.

    POLYMERS AND USES THEREOF
    7.
    发明申请

    公开(公告)号:US20210221937A1

    公开(公告)日:2021-07-22

    申请号:US17222252

    申请日:2021-04-05

    Abstract: The present invention provides polymers and methods of preparing the same. In certain embodiments, the polymers comprise acrylate repeating units that have been derivatized (e.g., reduced and/or substituted) to form new polymeric structures. In certain embodiments, the polymers described herein self-assemble to form well-defined nanostructures. In some instances, the nanostructures exhibit relatively small d-spacing (e.g., a d-spacing value of 10 nm or less). Due to their properties, the polymers described herein are useful in a variety of applications including functional materials and biomedical applications.

    Crosslinked polyolefins for biomedical applications and method of making same

    公开(公告)号:US10766987B2

    公开(公告)日:2020-09-08

    申请号:US15861608

    申请日:2018-01-03

    Applicant: Innolene LLC

    Abstract: A method for preparing a copolymer that involves polymerizing at least one branched alkene monomer and at least one olefin monomer having a pendant benzocyclobutene (BCB) group to form a copolymer comprising a random distribution of a plurality of constitutional units corresponding to the at least one branched alkene monomer and the at least one olefin monomer. The polymerizing includes a carbocationic polymerization reaction involving sequential addition of a plurality of mixtures without terminating the carbocationic polymerization reaction, wherein the plurality of mixtures includes a mixture that includes the at least one branched alkene monomer and does not include the at least one olefin monomer having a pendant BCB group and a mixture that includes both the at least one branched alkene monomer and the at least one olefin monomer having a pendant BCB group. The copolymer composition can undergo crosslinking at elevated temperatures (preferably above 180° C.).

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