Modified copolymer, method for preparing the same, and method for preparing paste

    公开(公告)号:US10954329B2

    公开(公告)日:2021-03-23

    申请号:US16232581

    申请日:2018-12-26

    Abstract: A modified copolymer is provided. The modified copolymer includes a random copolymer of a repeat unit of formula (I) and a repeat unit of formula (II) wherein M is derived from monomers with double bonds, R is a direct bond or an aliphatic hydrocarbon chain group having 1 to 12 carbon atoms, a cyclic aliphatic hydrocarbon group having 3 to 16 carbon atoms, an alkylcarbonyloxy group having 2 to 6 carbon atoms, a carbonyl group, an ether group, an ester group, an amide group, an aromatic group having 6 to 16 carbon atoms, or a divalent group having any of the above groups, wherein m and x are positive integers less than 50. The weight average molecular weight of the modified copolymer is between 3000 and 30000.

    Reversible crosslinking reactant composition

    公开(公告)号:US11247978B2

    公开(公告)日:2022-02-15

    申请号:US17090325

    申请日:2020-11-05

    Abstract: A reversible crosslinking reactant composition is provided. The composition includes at least one furan-group-containing oligomer and a bismaleimide compound having a structure represented by Formula (II) wherein the furan-group-containing oligomer is an oligomer having a structure represented by Formula (IV), an oligomer having a structure represented by Formula (V), or an oligomer having a first repeating unit and a second repeating unit, wherein the first repeating unit has a structure represented by Formula (VI), the second repeating unit has a structure represented by Formula (VII), wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, q, z and E are as defined in specification.

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