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    MULTILAYER FILMS
    3.
    发明申请
    MULTILAYER FILMS 有权

    公开(公告)号：US20250128463A1

    公开(公告)日：2025-04-24

    申请号：US18685043

    申请日：2021-12-16

    Applicant: Dow Global Technologies LLC

    Inventor： Bo Liu ,  Feng Chen ,  Rongjuan Cong ,  Wesley R. Mariott

    IPC: B29C48/21 ,  B29C31/10 ,  B29C48/00 ,  B29C48/08 ,  B29K23/00

    Abstract: A multilayer film comprising at least three film layers including: (a) at least a first polyolefin film layer, wherein the first polyolefin film layer comprises a first outer film layer; (b) at least a second polyolefin film layer, wherein the second polyolefin film layer comprises a core film layer; and (c) at least a third polyolefin film layer, wherein the third polyolefin film layer comprises a second outer film layer; wherein the at least a third polyolefin film layer is the same or different than the at least first polyolefin film layer; wherein the at least second core polyolefin film layer is disposed in between, and separates, the first and third film layers; wherein the first, second and third film layers are contacted together to form a multilayer film structure; wherein at least one of the polyolefin film layers of the three-layer film structure is prepared from a polymer blend composition comprising: (i) at least a first ethylene-based polymer resin; wherein the at least first ethylene-based polymer resin comprises a catalyzed linear low density polyethylene having an altered molecular structure prepared using a Ziegler-Natta Catalyst System 1, which is prepared as described in Preparation 1 in the description; and (ii) at least a second ethylene-based polymer resin; wherein the at least second ethylene-based polymer resin comprises a low density polyethylene resin; and wherein the multilayer film comprising a catalyzed linear low density polyethylene having an altered molecular structure prepared using a Ziegler-Natta Catalyst System 1, which is prepared as described in Preparation 1 in the description, exhibits at least a 10 percent increase in puncture resistance compared to the puncture resistance of a multilayer film that include a catalyzed linear low density polyethylene resin having a non-altered molecular structure prepared using a Ziegler-Natta catalyst; a process for preparing the multilayer film; and an article made from the multilayer film.

    THERMOPLASTIC COMPOSITIONS
    4.
    发明申请
    THERMOPLASTIC COMPOSITIONS 有权

    公开(公告)号：US20240417556A1

    公开(公告)日：2024-12-19

    申请号：US18699980

    申请日：2022-10-10

    Applicant: Dow Global Technologies LLC

    Inventor： Yongchao Zeng ,  Andrew T. Heitsch ,  Bo Liu ,  Mridula Kapur

    IPC: C08L23/26 ,  C08L23/06

    Abstract: Embodiments are directed towards thermoplastic compositions comprising: a virgin raw polymer, wherein the virgin raw polymer comprises a hydrogenation-catalyst treated polyethylene and a recycled polyethylene wherein the recycled polyethylene comprises either a first blend of polyethylenes recovered from post-consumer material, a second blend of polyethylenes recovered from pre-consumer material, or a combination of the first and second blends.

    BIMODAL POLY(ETHYLENE-CO-1-ALKENE) COPOLYMER
    5.
    发明申请
    BIMODAL POLY(ETHYLENE-CO-1-ALKENE) COPOLYMER 有权

    公开(公告)号：US20220169762A1

    公开(公告)日：2022-06-02

    申请号：US17600658

    申请日：2020-04-28

    Applicant: Dow Global Technologies LLC

    Inventor： Shadid Askar ,  Peter S. Martin ,  Bo Liu ,  John F. Szul ,  Roger L. Kuhlman ,  Mridula Babli Kapur

    IPC: C08F210/16 ,  B01J8/44 ,  C07F17/00

    Abstract: A bimodal poly(ethylene-co-1-alkene) copolymer comprising a higher molecular weight poly(ethylene-co-1-alkene) copolymer component and a lower molecular weight poly(ethylene-co-1-alkene) copolymer component. The copolymer is characterized by a unique combination of features comprising, or reflected in, its density; molecular weight distributions; component weight fraction amount; viscoelastic properties; and environmental stress-cracking resistance. Additional inventive embodiments include a method of making the copolymer, a formulation comprising the copolymer and at least one additive that is different than the copolymer, a method of making a manufactured article from the copolymer or formulation; the manufactured article made thereby, and use of the manufactured article.

    MULTILAYER FILMS
    6.
    发明公开
    MULTILAYER FILMS 审中-公开

    公开(公告)号：US20240336043A1

    公开(公告)日：2024-10-10

    申请号：US18293804

    申请日：2021-10-22

    Applicant: Dow Global Technologies LLC

    Inventor： Bo Liu ,  Feng Chen ,  Zhe Zhou ,  Wesley R. Mariott ,  Chuan C. He

    IPC: B32B27/08 ,  B32B27/32

    CPC classification number: B32B27/08 ,  B32B27/32 ,  B32B2250/03 ,  B32B2250/242 ,  B32B2307/72

    Abstract: A multilayer film comprising at least three layers including (a) at least a first polyolefin layer, wherein the at least first polyolefin layer comprises a first outer layer of the multilayer film: (b) at least a second polyolefin layer, wherein the at least second polyolefin layer comprises a core layer of the multilayer film; and (c) at least a third polyolefin layer, wherein the at least third polyolefin layer comprises a second outer layer (or other layer such as a sealant layer) of the multilayer film: wherein the layers are as described.

    POLYURETHANE BASED SYNTHETIC LEATHERS COMPRISING NANOPARTICLES AND HAVING IMPROVED PEEL STRENGTH
    7.
    发明申请
    POLYURETHANE BASED SYNTHETIC LEATHERS COMPRISING NANOPARTICLES AND HAVING IMPROVED PEEL STRENGTH 审中-公开
    基于聚氨酯的合成皮革包含纳米颗粒并具有改进的皮肤强度

    公开(公告)号：US20150259851A1

    公开(公告)日：2015-09-17

    申请号：US14431533

    申请日：2012-10-16

    Applicant: Dow Global Technologies LLC

    Inventor： Weichao Gu ,  Ning Kang ,  Hong Liang Zhang ,  Yunfei Yan ,  Chao Zhang ,  Bo Liu

    IPC: D06N3/14 ,  D06N3/12 ,  D06N3/00

    CPC classification number: D06N3/146 ,  D06N3/0006 ,  D06N3/0047 ,  D06N3/0077 ,  D06N3/0088 ,  D06N3/123 ,  D06N3/14 ,  D06N2211/28 ,  Y10T428/249953

    Abstract: Disclosed herein are methods of producing externally stabilized, poromeric synthetic leathers having improved peel strength, the methods comprising: preparing a prepolymer from a mixture comprising at least one polyester polyol, at least one polyether polyol, at least one isocyanate and optionally in a solvent; mixing the prepolymer, water, and a first surfactant; optionally add a second chain extender to form a PUD; preparing a mixture comprising said PUD, at least one surfactant, and at least one thickener; frothing said mixture; applying the frothed mixture to a fabric and thereby forming a coated fabric; adjusting the thickness of the frothed mixture on the coated fabric; drying the coated fabric. Methods of improving the peel strength of poromeric synthetic leathers are also disclosed. Externally stabilized synthetic leathers having improved peel strength are also disclosed.

    Abstract translation: 本文公开了制备具有改善的剥离强度的外部稳定的，具有改性的聚酯合成革的方法，所述方法包括：由包含至少一种聚酯多元醇，至少一种聚醚多元醇，至少一种异氰酸酯和任选在溶剂中的混合物制备预聚物; 混合预聚物，水和第一表面活性剂; 任选地加入第二扩链剂以形成PUD; 制备包含所述PUD，至少一种表面活性剂和至少一种增稠剂的混合物; 发泡混合物; 将发泡混合物施加到织物上，从而形成涂布织物; 调节涂布织物上发泡混合物的厚度; 干燥涂层织物。 还公开了改善外用合成革的剥离强度的方法。 还公开了具有改善的剥离强度的外部稳定的合成皮革。

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