公开(公告)号：US20060062539A1

公开(公告)日：2006-03-23

申请号：US11269765

申请日：2005-11-09

申请人： Markus Bulters ,  Gerrit Rekers ,  Philippe Bleiman ,  Jozef Linsen ,  Alexander Stroeks ,  Johannes Van Eekelen ,  Adrianus Abel ,  Marko Dorschu ,  Paulus Steeman

发明人： Markus Bulters ,  Gerrit Rekers ,  Philippe Bleiman ,  Jozef Linsen ,  Alexander Stroeks ,  Johannes Van Eekelen ,  Adrianus Abel ,  Marko Dorschu ,  Paulus Steeman

IPC分类号： C03C25/10 ,  G02B6/00 ,  D02G3/00 ,  C08F2/48

CPC分类号： C03C25/106 ,  C03C25/1065 ,  G02B6/02395 ,  Y10T428/29 ,  Y10T428/2913 ,  Y10T428/292 ,  Y10T428/2933 ,  Y10T428/2938

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 (σ10cav) 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.