Coated optical fibers,申请号US20010989703-传众专利搜索

Coated optical fibers

申请公布号：US7067564(B2)

申请号：US20010989703

申请日期：2001.11.21

申请公布日期：2006.06.27

申请人：

DSM IP ASSETS B.V.

发明人：BULTERS MARKUS J. H.;REKERS GERRIT;BLEIMAN PHILIPPE W. P . V.;LINSEN JOZEF M. H.;STROEKS ALEXANDER A. M.;VAN EEKELEN JOHANNES A.;ABEL ADRIANUS G. M.;DORSCHU MARKO;STEEMAN PAULUS A. M.

分类号：C08F2/46;C03C25/10;C08F2/50;C08F220/26;C08F220/36;C08F230/02;C08G18/28;C08G18/67;C08G18/80;C08G18/81;C09D4/00;C09D175/16;G01L1/00

主分类号：C08F2/46

摘要：The invention relates to coated optical fibers comprising soft primary coatings and to such primary coatings for protecting glass optical fibers having a sufficient high resistance against cavitation. In particular, the primary coatings have a cavitation strength at which a tenth cavitation appears (sigma10cav) of at least about 1.0 MPa as measured at a deformation rate of 0.20% min-1 and of at least about 1.4 times their storage modulus at 23° C. The coating preferably shows strain hardening in a relative Mooney plot, preferably has a strain energy release rate Go of about 20 J/m2 or more, and preferably has a low volumetric thermal expansion coefficient. The invention furthermore provides a method and apparatus for measuring the cavitation strength of a primary coating.