Gels exhibiting reversible opacity change
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United States of America Patent
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Issued Date -
Aug 21, 2003
app pub date -
Apr 17, 2002
filing date -
Feb 19, 2002
priority date (Note) -
Abandoned
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Abstract
Described are aqueous solutions of materials that can be formed into mechanically robust gels that exhibit reversible LCST behavior. The use of a curable crosslinking agent beneficially allows the LCST materials to be processed as solutions. Since the LCST material is a solution, the incorporation of additional components, including surfactants, which modify the LCST transition point is also facilitated. Finally, the blending of other formulation components, such as, but not limited to, optical brighteners, dyes, surfactants, and other components is greatly facilitated by the low viscosity nature of the solution.
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