Curing agent, curable compositions, compositions for optical materials, optical materials, their production and liquid crystal displays and LED's made by using the materials
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United States of America Patent
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Jul 14, 2009
Grant Date -
Jul 1, 2004
app pub date -
Dec 10, 2001
filing date -
Dec 27, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
The invention aims at a curing agent, curable compositions or compositions for optical materials, capable of providing for cured artifacts having laudable heat resistance, optical transparency, and light resistance; optical materials and methods for their production; and liquid crystal displays and LED's made by using the materials. A curing agent, which comprises at least two SiH groups, is obtainable by subjecting an aliphatic organic compound (α1) and an acyclic and/or cyclic polyorganosiloxane (β1) to hydrosilylation reaction. The curing agent is also obtainable by subjecting an organic compound (α2) and a cyclic polyorganosiloxane (β2) to hydrosilylation reaction.
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