MOISTURE CURABLE ORGANOPOLYSILOXANE COMPOSITION
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United States of America Patent
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Issued Date -
Dec 25, 2014
app pub date -
Dec 21, 2012
filing date -
Dec 29, 2011
priority date (Note) -
Abandoned
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Abstract
The present invention provides curable compositions comprising non-Sn organo-metal catalysts that accelerate the condensation curing of moisture curable silicones/non-silicones. In particular, the present invention provides Zn(II) and Zr(IV) complexes that are particularly suitable as replacements for organotin for sealant and RTV formulations. The Zn(II) and Zr(IV) complexes are comparable or superior to organotin such as DBTDL and exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.
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