发明名称 |
Strålingshærdelige overtræk egnet til påföring på optiske fibre ved höj hastighed |
摘要 |
Inner and outer primary and matrix material compositions which, after curing, exhibit a high degree of uniformity after curing even when the coating is applied onto optical fibers at relatively high shear rates, e.g., such as those experienced at high optical fiber coating line speeds. These compositions are provided in significant part by the selective incorporation of at least one radiation-curable oligomer into the compositions. In particular, and with respect to inner primary coatings, the oligomer should be selected so that the value m of an uncured radiation-curable inner primary coating composition in the equation <maths id="MATH-US-00001" num="1"> <MATH OVERFLOW="SCROLL"> <MTABLE> <MTR> <MTD> <MROW> <MI>tau</MI> <MO>=</MO> <MFRAC> <MROW> <MI>K</MI> <MO>⁢</MO> <MSTYLE> <MTEXT> </MTEXT> </MSTYLE> <MO>⁢</MO> <MI>lambdagamma</MI> </MROW> <MROW> <MN>1</MN> <MO>+</MO> <MSUP> <MROW> <MO>(</MO> <MSTYLE> <MTEXT> </MTEXT> </MSTYLE> <MO>⁢</MO> <MI>lambdagamma</MI> <MO>)</MO> </MROW> <MI>m</MI> </MSUP> </MROW> </MFRAC> </MROW> </MTD> <MTD> <MROW> <MO>(</MO> <MI>I</MI> <MO>)</MO> </MROW> </MTD> </MTR> </MTABLE> </MATH> </MATHS> is advantageously equal to or greater than about 0.90. |
申请公布号 |
DK1268679(T3) |
申请公布日期 |
2005.01.31 |
申请号 |
DK20010915932T |
申请日期 |
2001.03.22 |
申请人 |
DSM IP ASSETS B.V. |
发明人 |
SZUM, DAVID, MICHAEL;JOHNSON, ROBERT, WILLIAM |
分类号 |
C03C25/00;C03C25/10;C08F290/06;C08F290/14;C09D4/00;C09D4/06;(IPC1-7):C09D4/06 |
主分类号 |
C03C25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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