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    Metal ionomer compositions and methods of making the same
    112.
    发明授权
    Metal ionomer compositions and methods of making the same 有权

    公开(公告)号：US12091478B2

    公开(公告)日：2024-09-17

    申请号：US17615762

    申请日：2020-05-20

    申请人： Dow Global Technologies LLC

    发明人： Xue Chen ,  Stephen King

    IPC分类号： C08F220/06 ,  C08F210/02

    CPC分类号： C08F220/06 ,  C08F210/02 ,  C08F2810/50

    摘要： Disclosed in embodiments herein are ionomers and methods of making the same. The ionomers comprise a neutralized blend of olefin-carboxylic acid copolymers and Group II, Group IIIA, and transition metal salts. The method includes mixing an acid copolymer formed from an α-olefin monomer and an α,β-ethylenically unsaturated carboxylic acid having at least one carboxylic acid group with an amine-containing aqueous solution to form an aqueous dispersion containing an amine salt of the acid copolymer. The method further includes mixing a solution of a Group IIA , Group IIIA, or transition metal salt with the aqueous dispersion containing the amine salt of the acid copolymer to exchange at least a portion of the amine salt for the Group IIA , Group IIIA, or transition metal salt, thereby forming the ionic copolymer.

    FIBERS AND FABRICS WITH NITROGEN-CONTAINING ADDITIVES
    114.
    发明公开
    FIBERS AND FABRICS WITH NITROGEN-CONTAINING ADDITIVES 审中-公开

    公开(公告)号：US20240301112A1

    公开(公告)日：2024-09-12

    申请号：US18597016

    申请日：2024-03-06

    申请人： Ascend Performance Materials Operations LLC

    发明人： Wai-shing Yung ,  Vikram Gopal

    IPC分类号： C08F283/04 ,  C08K3/105

    CPC分类号： C08F283/04 ,  C08K3/105

    摘要： This disclosure relates to a process for making flame retardant fibers comprising the steps of combining a flame retardant masterbatch with a polymer to form a polymer composition and forming the flame retardant fibers from the polymer composition. The masterbatch comprises greater than 10 wt % of a nitrogen compound having a melting point less than 400° C.; and a masterbatch polymer, with the weight percentages based on the total weight of the masterbatch. The flame retardant fibers pass the flame retardancy standards of ASTM D6413 (current year).

    RADIATION CURABLE RESIN
    115.
    发明公开
    RADIATION CURABLE RESIN 审中-公开

    公开(公告)号：US20240301111A1

    公开(公告)日：2024-09-12

    申请号：US18039246

    申请日：2021-11-19

    申请人： EVONIK OPERATIONS GMBH

    发明人： Dinesh Kumar BASKER ,  Soumya SARKAR ,  Yili WU ,  Erwin PENG

    IPC分类号： C08F265/06 ,  B33Y70/00 ,  C08F2/50

    CPC分类号： C08F265/06 ,  C08F2/50 ,  B33Y70/00

    摘要： A liquid, radiation curable composition with a viscosity of 1500 cps or lower, said composition comprising 5 to 50 weight percent of monomeric or oligomeric component a) with at least two aromatic (meth)acrylate groups, 0 to 20 weight percent of monomeric or oligomeric component b) with at least two (meth)acrylate groups comprising an alicyclic moiety having at least three rings that are fused or condensed, 10 to 45 weight percent of aliphatic oligomeric or polymeric component c) with at least two (meth)acrylate groups comprising at least one urethane linkage, 10 to 30 weight percent of monomeric component d) with one (meth)acrylate group having at least one hydroxyl moiety, 0.5 to 6 weight percent of one or more photo-initiators capable of forming radicals and 0 to 5 weight percent of color pigments, with components a), b), c) and d) being different from each other.

    Catalytic, Sulfur-Free Chain Transfer Agent for Modulation of Network Topology in Crosslinked Photopolymers
    117.
    发明公开
    Catalytic, Sulfur-Free Chain Transfer Agent for Modulation of Network Topology in Crosslinked Photopolymers 审中-公开

    公开(公告)号：US20240301106A1

    公开(公告)日：2024-09-12

    申请号：US18587704

    申请日：2024-02-26

    申请人： University of Denver

    发明人： Brady Worrell ,  Brian Donovan ,  Nicholas Bagnall ,  Meredith Jones

    IPC分类号： C08F220/14

    CPC分类号： C08F220/14

    摘要： A method for tailoring mechanical properties of a photopolymer includes providing an active monomer feedstock, adding a sulfur-free chain transfer agent (CTA) to the active monomer feedstock to form a mixture, and curing the mixture under predetermined conditions. The sulfur-free CTA includes a Cobalt(II) complex or a Cobalt(III) complex, the mechanical properties include glass transition temperature, crosslinking density, and/or conversion rate, and a concentration of the sulfur-free CTA is less than 30% of the mixture. The predetermined conditions include intensity, wavelength, and application time of energy from a light source, a cure temperature, and/or the concentration of the sulfur-free CTA in the mixture. The method may further include adding a diluent to the mixture to modify a viscosity of the active monomer feedstock. The diluent may include one of a reactive diluent and a non-reactive diluent, such as methyl methacrylate (MMA) and methacrylate (MA).

    DISENTANGLED ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE, METHODS OF MAKING AND USING
    119.
    发明公开
    DISENTANGLED ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE, METHODS OF MAKING AND USING 审中-公开

    公开(公告)号：US20240301101A1

    公开(公告)日：2024-09-12

    申请号：US18572318

    申请日：2022-06-28

    申请人： King Abdullah University of Science and Technology

    发明人： Sanjay RASTOGI ,  Dario ROMANO ,  Ravindra GOTE

    IPC分类号： C08F110/02

    CPC分类号： C08F110/02 ,  C08F2410/07

    摘要： Disclosed herein are methods for synthesis of ultra-high molecular weight polyethylene (UHMWPE), with improved disentanglement, for solid-state processing into a product, such as tapes, films, and ropes, etc., with superior mechanical properties. The method includes using a catalyst support which includes MgCl2 pre-reacted with different alcohols. The MgCl2/alcohol adducts are reacted with different aluminum alkyls to form nanoparticles support, preferably in-situ, under inert environment in the presence of the monomer used to synthesize the UHMWPE. The resulting heterogeneous catalytic system and polymer synthesis method results in improved UHMWPE with high average molecular weight (Mw)>1 million g/mol, with lower levels of entanglement (while avoiding fouling seen with homogenous catalytic systems), allowing for processing into products such as tapes with superior mechanical properties.