公开(公告)号：US11256028B2

公开(公告)日：2022-02-22

申请号：US16952321

申请日：2020-11-19

申请人： Covestro (Netherlands) B.V.

发明人： Paulus Antonius Maria Steeman ,  Xiaosong Wu ,  Adrianus Cornelis Bastiaan Bogaerds ,  Mark Petrus Franciscus Pepels

IPC分类号： G02B6/02 ,  C03B37/025 ,  C03C13/04 ,  C03C25/105 ,  C03C25/1065 ,  C08G18/48 ,  C08G18/62 ,  C08G18/67 ,  C08G18/75 ,  C08G18/76 ,  C09D5/00 ,  C09D175/14

摘要： Described herein are coated optical fibers including an optical fiber portion, wherein the optical fiber portion includes a glass core and cladding section that is configured to possesses certain mode-field diameters and effective areas, and a coating portion including a primary and secondary coating, wherein the primary coating is the cured product of a composition that possesses specified liquid glass transition temperatures, such as below −82° C., and/or a viscosity ratios, such as between 25° C. and 85° C., of less than 13.9. Also described are radiation curable coating compositions possessing reduced thermal sensitivity, methods of coating such radiation curable coating compositions to form coated optical fibers, and optical fiber cables comprising the coated optical fibers and/or radiation curable coating compositions elsewhere described.

公开(公告)号：US11952453B2

公开(公告)日：2024-04-09

申请号：US17056951

申请日：2018-12-03

申请人： Covestro (Netherlands) B.V.

发明人： Xiaosong Wu ,  Paulus Antonius Maria Steeman ,  Adrianus Cornelis Bastiaan Bogaerds ,  Mark Pepels ,  Guido Joseph Elisabeth Hensen

IPC分类号： C08F2/46 ,  C08F2/50 ,  C08F290/06 ,  C08G18/34 ,  C08G18/48 ,  C08G18/75 ,  C08G18/76 ,  C08G61/04 ,  C09D175/16 ,  G02B6/02

CPC分类号： C08F290/067 ,  C08F2/50 ,  C08G18/34 ,  C08G18/4825 ,  C08G18/755 ,  C08G18/758 ,  C08G18/7621 ,  C09D175/16 ,  G02B6/02395 ,  C08G2150/00

摘要： 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 possess preferably high amounts of a reactive oligomer component with a backbone not derived from polypropylene glycol, preferably reactive oligomers 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 are methods of coating the radiation curable compositions elsewhere described, and the fiber optic coatings resulting therefrom.