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    MATTING AGENT RESIN FOR 3D PRINTING
    3.
    发明申请
    MATTING AGENT RESIN FOR 3D PRINTING 审中-公开

    公开(公告)号：WO2022197759A1

    公开(公告)日：2022-09-22

    申请号：PCT/US2022/020483

    申请日：2022-03-16

    Applicant: ARKEMA INC.

    Inventor： CALVIN, Mary K. ,  FISHER, Evan J. ,  LIU, David, Shin-Ren ,  CROMER, Brian M.

    IPC: B29C64/165

    Abstract: The invention relates a resin composition containing a polymer matting agent, that improves the aesthetic appearance of an article formed by Material Extrusion 3D printing. The composition contains 30 - 99.9wt% thermoplastic resin and 0.1 – 50 wt% of one or more spherical or near-spherical polymeric matting agents (PMAs) such as Altuglas Acryperl® beads from Arkema. Objects 3D printed from the composition have hidden layer lines (a.k.a. "build lines") and is more uniform in appearance, compared to an object printed from the same thermoplastic resin without PMAs.

    NOVEL PVDF POWDER FOR REDUCED DISPERSION VISCOSITY COATINGS
    4.
    发明申请
    NOVEL PVDF POWDER FOR REDUCED DISPERSION VISCOSITY COATINGS 审中-公开

    公开(公告)号：WO2022140149A1

    公开(公告)日：2022-06-30

    申请号：PCT/US2021/063769

    申请日：2021-12-16

    Applicant: ARKEMA INC.

    Inventor： FUKUYAMA, Takehiro ,  VAESSEN, Diane M.

    IPC: B32B15/08 ,  C08K5/07 ,  C08K5/5317

    Abstract: A method of reducing dispersion viscosity in a dispersion coating formulation is disclosed. The method comprises substituting a portion of the conventional PVDF in the formulation with a highly crystalline PVDF. The highly crystalline PVDF has a crystallinity 44% or greater (from X-ray diffraction). The highly crystalline PVDF imparts lower viscosity to the coating dispersion formulation.

    ORGANIC PEROXIDE FORMULATIONS FOR MODIFICATION OF BIO-BASED AND BIODEGRADABLE POLYMERS
    8.
    发明申请
    ORGANIC PEROXIDE FORMULATIONS FOR MODIFICATION OF BIO-BASED AND BIODEGRADABLE POLYMERS 审中-公开

    公开(公告)号：WO2021207520A1

    公开(公告)日：2021-10-14

    申请号：PCT/US2021/026421

    申请日：2021-04-08

    Applicant: ARKEMA INC.

    Inventor： PALYS, Leonard H. ,  DLUZNESKI, Peter R. ,  ABRAMS, Michael B. ,  DESPOTOPOULOU, Marina ,  PAVLEK, William P.

    IPC: C08K5/00 ,  C08K5/14 ,  C08L67/02 ,  C08L67/04

    Abstract: Formulations for producing modified bio-based polymers, especially bio-based polyesters like PLA and/or biodegradable polymers like PBAT, include at least one organic peroxide and at least one bio-based reactive additive. The at least one organic peroxide and/or the at least one bio-based reacted additive are capable of reacting with a bio-based polymer and/or biodegradable polymer to produce the modified bio-based and/or modified biodegradable polymer. The modified bio-based and/or modified biodegradable polymers have improved properties compared to non-modified bio-based and/or biodegradable polymers. The improved properties may related to processability, especially improved melt strength which results in easier processing while producing foamed polymers, thin films, such as blown film, cast film, tentered film and the like. The improved properties may be related to physical properties such as improved stiffness, toughness or tensile strength.

    PVDF EXTRUSION AGENT CONTAINING INTERFACIAL AGENT
    9.
    发明申请
    PVDF EXTRUSION AGENT CONTAINING INTERFACIAL AGENT 审中-公开

    公开(公告)号：WO2021168181A1

    公开(公告)日：2021-08-26

    申请号：PCT/US2021/018678

    申请日：2021-02-19

    Applicant: ARKEMA INC.

    Inventor： HENRY, James ,  O'BRIEN, Gregory S.

    IPC: B32B27/08 ,  B32B27/20 ,  B32B5/18

    Abstract: Disclosed is a polymer process aid used to reduce or eliminate surface defects that can arise during extrusion of thermoplastic polymers. The polymer process aid comprises a thermoplastic vinylidene fluoride copolymer (A) having a melt viscosity at or above 25 kP. The VDF copolymer can be a VDF/HFP copolymer. The polymer process aid also contains at least one interfacial agent (B). Also disclosed is 1) a masterbatch (D) and articles containing the polymer process aid (A/B).

    WELDABLE THERMOPLASTIC COMPOSITE COMPOSITES
    10.
    发明申请
    WELDABLE THERMOPLASTIC COMPOSITE COMPOSITES 审中-公开

    公开(公告)号：WO2021092276A1

    公开(公告)日：2021-05-14

    申请号：PCT/US2020/059268

    申请日：2020-11-06

    Applicant: ARKEMA INC.

    Inventor： BACHMAN, Nathan J. ,  BARSOTTI, Robert J.

    IPC: B29C47/06 ,  B60K15/03

    Abstract: The invention relates to the use of a low Tg compatible resin as an adhesive layer for the welding of a thermoplastic composite structure to a thermoplastic or thermoset structure. The invention is especially good for the welding of large parts, such as wind turbine halves and spar caps. A useful thermoplastic composite is one formed by the infusion and curing of long fibers by a reactive acrylic liquid resin system, such as ELIUM® resin systems from Arkema.

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