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    RADIATION CURABLE COMPOSITIONS FOR COATING OPTICAL FIBER
    2.
    发明申请
    RADIATION CURABLE COMPOSITIONS FOR COATING OPTICAL FIBER 有权

    公开(公告)号：US20210331969A1

    公开(公告)日：2021-10-28

    申请号：US17262397

    申请日：2019-08-27

    Applicant: DSM IP Assets B.V.

    Inventor： Kangtai REN ,  Johan Franz Gradus Antonius JANSEN

    IPC: C03C25/1065 ,  C03C25/285 ,  C03C13/04 ,  C09D4/00 ,  C09D133/14 ,  C09D175/14

    Abstract: Described herein are methods of producing a coated optical fiber from a primary and/or secondary coating composition that contain a reactive oligomer having an average of at least one polymerizable group, a monomer having an average of at least one polymerizable group, and a photoinitiator, wherein the photoinitiator possesses specified normalized rates of polymerization at (150) degrees Celsius and/or a potential excited triplet state with certain ionization potential values. Also described and claimed are the compositions for use therewith, including primary coating compositions and secondary coating compositions. Yet further described and claimed are the coated optical fibers produced from the methods and/or compositions elsewhere described.

    COMPOSITIONS AND ARTICLES FOR ADDITIVE FABRICATION AND METHODS OF USING THE SAME
    3.
    发明申请
    COMPOSITIONS AND ARTICLES FOR ADDITIVE FABRICATION AND METHODS OF USING THE SAME 审中-公开

    公开(公告)号：US20200339718A1

    公开(公告)日：2020-10-29

    申请号：US16957820

    申请日：2018-12-19

    Applicant: DSM IP Assets B.V.

    Inventor： Kangtai REN ,  Robin PAPACHRISTOPOULOS

    IPC: C08F220/18 ,  B33Y70/00 ,  C09B11/24 ,  G01P5/20

    Abstract: Radiation curable compositions for additive fabrication processes, the components cured therefrom, and their use in particle image velocimetry testing methods are described and claimed herein. Such compositions include compounds which induce free-radical polymerization, optionally compounds which induce cationic polymerization, a filler constituent, and a light absorbing component, wherein the compositions are configured to possess certain absorbance values at wavelengths commonly utilized in particle image velocimetry testing. In another embodiment, the compositions include a fluoroantimony-modified compound. Such compositions may be used in particle imaging velocimetry testing methods, wherein the test object utilized is created via additive fabrication and is of a substantially homogeneous construction.

    WATER-BLOCKING SYSTEMS INCLUDING FIBERS COATED WITH LIQUID RADIATION CURABLE SAP COMPOSITIONS
    4.
    发明申请
    WATER-BLOCKING SYSTEMS INCLUDING FIBERS COATED WITH LIQUID RADIATION CURABLE SAP COMPOSITIONS 审中-公开

    公开(公告)号：US20200255333A1

    公开(公告)日：2020-08-13

    申请号：US16760476

    申请日：2018-11-05

    Applicant: DSM IP Assets B.V.

    Inventor： Huimin CAO ,  Kangtai REN ,  Mark PEPELS ,  Johan Franz Gradus Antonius JANSEN

    IPC: C03C25/285 ,  C03C25/1065 ,  G02B6/44

    Abstract: The present invention is directed to water-swellable, radiation curable compositions suitable for use in coating water-blocking fibers, such as optical fibers. The present invention is further directed to fibers, including optical fibers, which are coated with water-swellable exterior coatings that are configured to buckle and detach from the associated fiber to facilitate superior performance in longitudinal water-blocking testing. Also claimed and described are methods of applying such water-swellable coatings to optical fiber coatings. Further claimed and described are buffered bundles of fibers including at least one optical fiber that is coated with a water-swellable, radiation curable coating to ensure superior longitudinal water blocking performance.

    RADIATION CURABLE COMPOSITIONS FOR COATING OPTICAL FIBER VIA ALTERNATIVE OLIGOMERS AND THE COATINGS PRODUCED THEREFROM
    5.
    发明申请
    RADIATION CURABLE COMPOSITIONS FOR COATING OPTICAL FIBER VIA ALTERNATIVE OLIGOMERS AND THE COATINGS PRODUCED THEREFROM 有权

    公开(公告)号：US20210208333A1

    公开(公告)日：2021-07-08

    申请号：US17056902

    申请日：2018-12-03

    Applicant: DSM IP Assets B.V.

    Inventor： Kangtai REN ,  Paulus Antonius Maria STEEMAN ,  Mark PEPELS ,  Johan Franz Gradus Antonius JANSEN

    IPC: G02B6/02 ,  C08G18/75 ,  C08G18/76 ,  C08G18/48

    Abstract: Described and claimed herein are radiation curable compositions for coating an optical fiber, particularly primary coating compositions, wherein the composition possesses specified liquid glass transition temperatures, and/or viscosity ratios between, e.g., 25° C. and 85° C. Such compositions preferably possess large amounts of a reactive oligomer component that is either not substantially derived from, or preferably substantially free from polypropylene glycol, with select diisocyanate constituents, one or more reactive diluent monomers, a photoinitiator, and optionally, one or more additives. Such compositions also are preferably sufficiently viscous at room temperature to ensure optimum optical fiber coating processability. Also described and claimed are methods of using such radiation curable compositions in high speed and/or low helium optical fiber coating applications, along with the coated optical fibers produced therefrom.

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