Bayer Corporation

Miles Inc.

Bayer Materialscience, LLC

University of Pittsburgh

Bayer Aktiengesellschaft

Bayer Polymers LLC

Other

Bayer Aktiengesellscaft

Douglas A Wicks

Philip E Yeske

Lyuba K Gindin

Karsten Danielmeier

Sze-Ming Lee

Kenneth P Yonek

Sharon D Hicks

Karen Marie Henderson

E Haakan Jonsson

Harald Pielartzik

Alan J Russell

Lanny D Venham

Robert J Kumpf

Patricia B Jacobs

Dittmar K Nerger

Geraldine F Drevon

Harald Blum

Terrell Dean Wayt

Arthur W Mason

Peter D Schmitt

Duane B Priddy, Jr

Carol L Kinney

Brian Long

Robert A Sylvester

Eberhard Koenig

Joseph P Mandara

John H Hunter

Rolf Wehrmann

William E Slack

Richard R Roesler

Edward P Squiller

Wieland Hovestadt

Lothar Kahl

Rick L Archey

Charles A Gambino

Aaron D Meltzer

Lyubov K Gindin

Kurt C Frisch, Jr

Kristen L Parks

Scott A Grace

Robert A Wade

Erik H Jonsson

John J McLafferty

Gary W Munko

Randall A Rodenhouse

David C McClurg

Evan Randall Minnich

Stephanie A Strazisar

A functional aspartate prepared by A) reacting an aziridine with a Michael-acceptor molecule to form an aziridinyl aspartate, and B) reacting the aziridinyl aspartate with an active hydrogen containing compound to form the functional aspartate. The functional aspartate can be used in adhesive, sealant or coating compositions that also include an isocyanate functional material. The composition can be used in a method of bonding a first substrate to a second substrate that includes applying a coating of the above-identified adhesive composition to at least one surface of the first substrate or the second substrate, and contacting a surface of the first substrate with a surface of the second substrate, where at least on of the contacting surfaces has the coating applied thereto. The composition can also be used to coat substrates.

Aspartic ester functional compounds

A method of irreversibly immobilizing an enzyme in a polyurethane and an enzyme-containing polyurethane having a degree of immobilization of the enzyme of approximately 100%. The synthesis of waterborne polyurethanes in the presence of enzyme has enabled the irreversible attachment of the enzyme to the polymeric matrix. The distribution of immobilized enzyme as well as activity retention are homogeneous within the polyurethane. Decreasing ECC hydrophobicity, via the use of a less hydrophobic polyisocyanate prepolymer during polymerization, significantly enhanced the intrinsic activity of the ECC.

Irreversible immobilization of enzymes into polyurethane coatings

The present invention relates to novel aspartates, their method of production and the use of these mono and polyaspartates as reactive components for polyisocyanates in two-component polyurethane coating compositions and for preparing polyurethane prepolymers.

Process for preparing aspartates

The invention relates to a process for reducing the monomeric aziridine content in a polyaziridine forming reaction mixture by adding to the polyaziridine forming reaction mixture an excess of an organic carbonate scavenger wherein the excess is based on the equivalent ratio of scavenger to monomeric aziridine, and to a product obtained by this process and to a coating composition containing the product obtained by the process.

Reduction of monomer content and stabilization of polyaziridines

This invention provides a method of irreversibly immobilizing an enzyme into polyurethane coatings. This invention also provides for an enzyme-containing coating having a degree of immobilization of the enzyme of approximately 100%. The synthesis of waterborne polyurethane coatings in the presence of enzyme has enabled the irreversible attachment of the enzyme to the polymeric matrix. The distribution of immobilized enzyme as well as activity retention are homogeneous within the coating. Decreasing ECC hydrophobicity, via the use of a less hydrophobic polyisocyanate prepolymer during polymerization, significantly enhanced the intrinsic activity of the ECC.

The invention relates to a process for reducing the monomeric aziridine content in a polyaziridine forming reaction mixture by adding to the polyaziridine forming reaction mixture an excess of an isocyanate scavenger wherein the excess is based on the equivalent ratio of scavenger to monomeric aziridine, an to a product obtained by this process and to a coating composition containing the product obtained by the process.

Process of making polyaziridines

Aqueous polyurethane dispersions containing modified hydrazide groups and their use in one-component thermoset compositions

One-component thermoset coating compositions

The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer,

The present invention relates to one-component, thermoset compositions containing

The present invention is directed to coating compositions which have long pot lives and may be rapidly cured under ambient conditions wherein the binder contains a) a polyisocyanate component containing

Coating compositions containing aldimines and polyisocyanates

The present invention relates to aqueous polyurethane-urea dispersions having a resin solids content of at least 35 wt. % and a pH of at least 7.5 which are prepared by

High solids polyurethane-urea dispersions having improved storage

The present invention relates to hydroxy-functional polyhydantoin prepolymers corresponding to the formula ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from an organic monomeric diisocyanate, a polyisocyanate adduct or an NCO prepolymer containing hydantoin groups, R.sub.2 represents an organic group which is inert towards isocyanate groups at a temperature of 100.degree. C. or less, R.sub.3 and R.sub.4 may be identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100.degree. C. or less, R.sub.5 represents the hydrocarbon radical obtained by removing the amino and hydroxyl groups from an amino alcohol, n has a value of 1 to 3 and m has a value of 2 to 6. The present invention is also directed to compositions suitable for the production of coatings, adhesives or elastomers containing these polyhydantoin prepolymers in combination with optionally blocked polyisocyanates or aminoplast resins.

Hydroxy-functional polyhydantoin prepolymers and their use in coating

The present invention is directed to a polyisocyanate mixture which

High viscosity, high equivalent weight polyisocyanate mixtures

Growing community of inventors

Mt. Lebanon, PA, United States of America

Douglas A Wicks