SULFUR-CONTAINING POLYURETHANE
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United States of America Patent
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app pub date -
Mar 17, 2009
filing date -
Dec 16, 2005
priority date (Note) -
Abandoned
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Abstract
Sulfur-containing polyurethane comprising the reaction product of: (a) material chosen from polyisocyanate, polyisothiocyanate or mixtures thereof; (b) material chosen from trifunctional or higher-functional polyol having molecular weight of less than or equal to 200 grams/mole, trifunctional or higher-functional polythiol having molecular weight of less than or equal to 700 grams/mole, trifunctional or higher-functional material containing both hydroxyl and SH groups having molecular weight of less than or equal to 700 grams/mole, and mixtures thereof; and (c) material chosen from diol having molecular weight of less than or equal to 200 grams/mole, dithiol having molecular weight of less than or equal to 600 grams/mole, difunctional material containing both hydroxyl and SH groups having molecular weight of less than or equal to 600 grams/mole, and mixtures thereof, wherein at least one of (a), (b) or (c) is sulfur-containing.
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