Patent ID: 11934023
Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
Field: Optics (Instruments)
Classification: CPC G  C | IPC C  G

Claim 0:
1. An optical fiber cable comprising:
at least one optical fiber;
a cable jacket having an inner surface and an outer surface, wherein the outer surface is an outermost surface of the optical fiber cable and wherein the inner surface disposed around the at least one optical fiber;
a foam layer disposed between the at least one optical fiber and the cable jacket;
wherein the foam layer comprises a polymer component comprising from 30% to 100% by weight of a polyolefin elastomer (POE) or thermoplastic elastomer (TPE) and from 0% to 70% by weight of low density polyethylene (LDPE);
wherein the foam layer comprises a closed-cell morphology having pores with an average effective circle diameter of 10 μm to 500 μm; and
wherein the expansion ratio of the foam layer is at least 50%.