Miles Inc.

Mobay Corporation

Robin E Tirpak

Peter H Markusch

James W Rosthauser

Ashok M Sarpeshkar

Robert L Cline

Arthur W Mason

Sidney H Metzger

William Cibulas

The present invention is directed to a process for the preparation of an aqueous two-component polyurethane-forming composition by

Aqueous two-component polyurethane-forming compositions and a process

The present invention is directed to a aqueous polyurea dispersion for the preparation of an aqueous polyurea dispersion by

Aqueous polyurea dispersions prepared by an emulsion polymerization

The present invention is directed to a process for the preparation of an aqueous polyurea dispersion containing blocked isocyanate groups and unreacted isocyanate-reactive groups by

Reactive aqueous polyurea dispersions prepared by an emulsion

The present invention is directed to a process for the preparation of an aqueous dispersion containing both a blocked polyisocyanate and a polyhydroxyl compound by reacting an aqueously dispersed polyisocyanate having an isocyanate content of at least 12% by weight, based on the weight of the polyisocyanate, with a monofunctional blocking agent which is more reactive with isocyanate groups than water at an equivalent ratio of monofunctional blocking groups to isocyanate groups of 0.5:1 to 2:1 in the presence of a polyhydroxyl compound which is either water soluble or water dispersible, wherein the polyhydroxyl compound is present in an amount which is sufficient to provide an equivalent ratio of hydroxyl groups to blocked isocyanate groups of 0.6:1 to 1.25:1.

Process for the preparation of aqueous dispersions containing both

The present invention is directed to a process for the preparation of an aqueous dispersion of a blocked polyisocyanate by reacting an aqueously dispersed polyisocyanate having an isocyanate content of at least 12% by weight, based on the weight of the polyisocyanate, with a monofunctional blocking agent which is more reactive with isocyanate groups than water at an equivalent ratio of monofunctional blocking groups to isocyanate groups of 0.5:1 to 2:1. The present invention is also directed to the aqueously dispersed blocked polyisocyanates prepared by this process and to compositions containing these polyisocyanates and an isocyanate-reactive compound.

Aqueous dispersions of blocked polyisocyanates

The present invention is directed to a process for sealing and/or priming concrete by applying to concrete an aqueous polyisocyanate dispersion which has an isocyanate content of at least 0.5% by weight, based on the weight of the polyisocyanate, and is prepared by

Process for sealing and/or priming concrete with aqueous polyisocyanate

The present invention is directed to a process for preparing an aqueous polyisocyanate dispersion which has an isocyanate content of at least 0.5% by weight by

Process for preparing and optionally chain extending aqueous

The present invention is directed to a process for the preparation of an aqueous polyurea dispersion by

The present invention is directed to an aqueous dispersion of an encapsulated polyisocyanate which contains ureacted isocyanate groups and is prepared by

Aqueous dispersions of encapsulated polyisocyanates

The present invention is directed to an aqueous polyisocyanate dispersion which has an isocyanate content of at least 0.5% by weight, based on the weight of the polyisocyanate, and is prepared by

Aqueous polyisocyanate dispersions with reduced isocyanate contents and

The present invention relates to an aqueous composition containing

Aqueous compositions containing an at least partially blocked

The invention is related to an adhesive comprising a stable, fine particle size aqueous dispersion of polyurethane-urea which is the reaction product of an isocyanate-terminated prepolymer with an amine-containing chain extending agent which is characterized in that the functionality of said agent is about 2.05 to about 2.50. The adhesive was surprisingly and unexpectedly found to exhibit an increased softening point temperature as compared to the corresponding temperature of related adhesives which contains no such chain extending agent.

Aqueous polyurethane dispersions and adhesives based thereon

The present invention is directed to a process for the preparation of aqueous polyurethane-urea dispersions with improved hydrolytic stability by

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Wheeling, WV, United States of America

Robin E Tirpak