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    PROCESS FOR THE PRODUCTION OF POLYESTER COPOLYMERS
    2.
    发明公开
    PROCESS FOR THE PRODUCTION OF POLYESTER COPOLYMERS 审中-公开

    公开(公告)号：US20240336731A1

    公开(公告)日：2024-10-10

    申请号：US18294888

    申请日：2022-08-01

    申请人： Avantium Knowledge Centre B.V.

    发明人： Bing WANG ,  Gerardus Johannes Maria Gruter ,  Robert-Jan VAN PUTTEN

    IPC分类号： C08G63/80 ,  C08G63/183 ,  C08G63/672 ,  C08G63/85 ,  C08G63/91

    CPC分类号： C08G63/80 ,  C08G63/183 ,  C08G63/672 ,  C08G63/85 ,  C08G63/916

    摘要： A polymerization process for the production of a polyester copolymer A comprising simultaneously reacting a polyester (i) with one or more diols (ii) and one or more (hetero) aromatic dicarboxylic acids or any esters thereof (iii), wherein the polyester (i) is polyethylene terephthalate, polyethylene furanoate or polyethylene terephthalate-co-furanoate; and wherein no ethylene glycol is added as a diol (ii); and wherein at least one of the one or more diols (ii) is selected from (bi) cyclic secondary diols; and wherein the components (i) and (ii) are used in sufficient quantities to produce a polyester copolymer A comprising at least 40 mole % of ethylene glycol derived from the starting polyethylene terephthalate, polyethylene furanoate or polyethylene terephthalate-co-furanoate, and at least 5 mole %, of monomers derived from said (bi) cyclic secondary diol(s), the percentages based on the total amount of diol-derived monomer units in polyester copolymer A.

    SILANE-TERMINATED POLYMERS
    4.
    发明公开
    SILANE-TERMINATED POLYMERS 审中-公开

    公开(公告)号：US20240110006A1

    公开(公告)日：2024-04-04

    申请号：US18274790

    申请日：2022-01-28

    申请人： MERZ+BENTELI AG

    发明人： Stefan HUBER ,  Thomas ZUBER ,  Fritz BURKHARDT ,  Claude LERF

    IPC分类号： C08G63/91 ,  C09J167/02

    CPC分类号： C08G63/916 ,  C09J167/02

    摘要： A process for preparing a storage-stable silane-terminated polymer of formula (I) or (II)




    where D is linear or branched hydrocarbon group, A is polymer backbone selected from group, R1, R1′, R2 and R2′ are each linear, branched or cyclic hydrocarbon radical having 1 to 10 carbon atoms, n is 1, 2 or 3, x and y are natural numbers between 1 and 10, G is linear or branched hydrocarbon group having 1 to 20 hydrocarbon atoms, F is linear, branched or cyclic organic radical containing no isocyanate-reactive groups, m is natural number greater than 1, E is reactive group reacting with isocyanate group and selected from group consisting of NH2, NHR4 and SH, and R4 is linear, branched or cyclic hydrocarbon radical having 1 to 10 carbon atoms.