Method of fixing a fiber optic component in an optical device the optical device so obtained and the polymer composition used therein
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United States of America Patent
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Dec 7, 2004
Grant Date -
Apr 17, 2003
app pub date -
Sep 16, 2002
filing date -
Nov 30, 1999
priority date (Note) -
Expired
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Abstract
An optical device is described comprising at least one fiber-optic component arrange inside said device and a particular polymer composition capable of holding said optical component(s) in a predetermined position and protecting them inside said device. The polymer composition is a silicone elastomer obtained by crosslinking a mixture comprising at least one polysiloxane containing two or more hydrogen-siloxane functional groups of formula >SiH--O--, and at least one polysiloxane containing at least two vinyl groups of formula --CH.dbd.H.sub.2, where said polysiloxane are reacted in an amount such that the molar ratio between the hydrogen-siloxane groups and the vinyl groups is less than or equal to 1:1. The polymer composition has extremely low emission of hydrogen, less than 1 cm.sup.3 per kg of composition.
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