Modified polyurethanes

The present invention relates to isocyanate functional prepolymers, aqueous polyurethane dispersions produced from the prepolymers and various uses of such dispersions. The prepolymers are prepared by reacting a diisocyanate, a dihydroxy compound having a number average molecular weight of from abou...

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Bibliographic Details
Main Authors YU POLI C, ROESLER RICHARD R, MUENZMAY THOMAS, KLEER JOSEPH R, BEREZKIN YULIYA, CRISCI MARY A, GINDIN LYUBOV K
Format Patent
LanguageEnglish
Published 26.01.2006
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
SURGERY
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:The present invention relates to isocyanate functional prepolymers, aqueous polyurethane dispersions produced from the prepolymers and various uses of such dispersions. The prepolymers are prepared by reacting a diisocyanate, a dihydroxy compound having a number average molecular weight of from about 700 to about 16,000, and a trihydroxy component of the formula: R-(OH)3 where R is a saturated straight chain or branched chain aliphatic group of from 2 to 8 carbon atoms. The invention also relates to polyurethane dispersions prepared from the prepolymers and to various uses of the resultant dispersions.
Bibliography:Application Number: US20050208321