Patent ID: 6160939
Filing Date: 2000-12-12
Classification: G02B,Y10T

Abstract:
An optical cable, said optical fiber cable having a core that includes at least one optical fiber disposed within a core tube, a sheath system that surrounds the core tube, and a filling material that is disposed within the core tube, said filling material comprising:(a) 80 to 95 percent by weight of synthetic oil(s) selected from the group consisting of polyalphaolefins, polyglycols, polybutenes, polyisobutylenes, polypropenes, silicone oils, and blends of said synthetic oils, said oils having an average molecular weight that is greater than about 350;(b) 5 to 20 percent by weight of a diblock copolymer(s); and(c) less than 1.5 percent by weight of an inorganic gelling agent(s).