Low-Odor Catalyst for Isocyanate-Derived Foams and Elastomers
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United States of America Patent
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Issued Date -
Dec 6, 2007
app pub date -
Jul 22, 2004
filing date -
Jul 24, 2003
priority date (Note) -
Abandoned
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Abstract
Provided herein are catalysts useful in providing foam products which are produced using an organic poly isocyanate as a starting material. A catalyst according to the present invention includes the tris-(hydroxyethyl)methyl ammonium cation, and optionally potassium cation, in combination with a variety of possible counter anions present to maintain charge balance and for compatibility. A catalyst according to the invention is preferably used in conjunction with one or more conventional tertiary amine catalysts in a foam producing process. The foams may be polyurethane foams, polyisocyanurate foams, flexible foams, or elastomeric foams.
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