Patent · US Expired

Water blocking gels compatible with polyolefin optical fiber cable buffer tubes and cables made therewith

US6085009A · kind A · utility

113Cited by

29References

21Claims

0Family size

Assignee

ALCATEL · FR

Inventors

Brian G. Risch · Granite Falls, US
Jeffrey Auton · Maiden, US
Olivier Tatat · Sangatte, FR

Key dates

Filing date	May 12, 1998
Grant date	Jul 4, 2000
Priority date	—
Expiry date	May 12, 2018

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/44384
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A water blocking gel which is compatible with polyolefin optical fiber cable buffer tubes is disclosed. The water blocking gel comprises a polyolefin oil, wherein only a very small fraction of the polyolefin species have a molecular weight below about 2000. The gel also includes a thixotropic agent, and a thermal oxidation stabilizer. The gel is relatively low cost, does not cause substantially swelling of the polyolefin buffer tubes in contact therewith and does not degrade the buffer tube's physical properties.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.