US 12,298,576 B2
Foam for optical fiber cable, composition, and method of manufacturing
Ryan Thomas Adams, Charlotte, NC (US); Bradley Jerome Blazer, Granite Falls, NC (US); Anne Germaine Bringuier, Taylorsville, NC (US); Xiaole Cheng, Painted Post, NY (US); Sergey Vladimirovich Chernykh, Hickory, NC (US); John Richard Jacks, Wellington, OH (US); and Rebecca Elizabeth Sistare, Hickory, NC (US)
Assigned to CORNING RESEARCH & DEVELOPMENT CORPORATION, Corning, NY (US)
Filed by CORNING RESEARCH & DEVELOPMENT CORPORATION, Corning, NY (US)
Filed on Mar. 14, 2024, as Appl. No. 18/605,032.
Application 18/605,032 is a continuation of application No. 17/498,874, filed on Oct. 12, 2021, granted, now 11,934,023.
Application 17/498,874 is a continuation of application No. PCT/US2020/028918, filed on Apr. 20, 2020.
Claims priority of provisional application 62/835,688, filed on Apr. 18, 2019.
Prior Publication US 2024/0219666 A1, Jul. 4, 2024
Int. Cl. G02B 6/44 (2006.01); C08J 9/00 (2006.01); C08L 23/06 (2006.01); C08L 23/16 (2006.01)
CPC G02B 6/443 (2013.01) [C08J 9/0061 (2013.01); C08L 23/06 (2013.01); C08L 23/16 (2013.01); C08J 2205/044 (2013.01); C08J 2205/052 (2013.01); C08J 2323/06 (2013.01); C08J 2323/16 (2013.01); C08J 2423/06 (2013.01); C08J 2423/16 (2013.01); C08L 2203/14 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); C08L 2207/04 (2013.01); C08L 2207/066 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical fiber cable, comprising:
an optical fiber;
a cable jacket defining an interior cavity; and
a foam layer disposed between the optical fiber and the cable jacket, wherein the foam layer comprises one of:
a first composition comprising from 30% by weight to 80% by weight of a polyolefin elastomer (POE) and from 20% by weight to 70% by weight of low-density polyethylene (LDPE); or
a second composition comprising from 30% by weight to 100% by weight of a thermoplastic elastomer (TPE) and from 0% by weight to 70% by weight of LDPE;
wherein attenuation of all optical fibers in the optical fiber cable remains below 0.15 dB while the optical fiber cable is under a 110 N/cm compression load.