Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Reexamination Certificate
2006-06-27
2006-06-27
Seidleck, James J. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
C522S090000, C522S120000, C522S121000, C522S182000, C385S142000, C428S378000, C428S380000, C428S383000, C428S388000, C427S508000, C427S513000
Reexamination Certificate
active
07067564
ABSTRACT:
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−1and 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/m2or 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.
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Abel Adrianus G. M.
Bleiman Philippe W. P . V.
Bulters Markus J. H.
Dorschu Marko
Linsen Jozef M. H.
DSM IP Assets B.V.
Mayer Brown Rowe & Maw LLP
McClendon Sanza L.
Seidleck James J.
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