S,S′-bis-(α, α′—disubstituted—α″—acetic acid)—trithiocarbonates and polymers thereof for toughening thermosetting resins
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United States of America Patent
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May 17, 2005
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app pub date -
Aug 15, 2002
filing date -
Feb 16, 2000
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Abstract
A toughener comprising a trithiocarbonate polymer having an epoxy end group is described which is utilized with various thermosettable polymers such as epoxy, polyurethane, and the like. A toughened composition is made by curing the thermosettable polymer and the toughener utilizing various curing agents.
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