Bayer Corporation

Miles Inc.

Bayer Materialscience, LLC

Bayer Polymers LLC

Lanny D Venham

Michael K Jeffries

Terry A Potter

Myron W Shaffer

Douglas A Wicks

Karsten Danielmeier

Arthur W Mason

Michael J Dvorchak

Peter D Schmitt

Joseph P Mandara

James W Rosthauser

Richard R Roesler

Edward P Squiller

Manfred Bock

Philip E Yeske

Kenneth P Yonek

Karen Marie Henderson

Sharon D Hicks

Stanley F Siranovich

Marianne M Salek

Kyli Martin

The present invention is directed to blocked biuret group-containing polyisocyanate compositions, wherein the blocking agent is of the formula: wherein R, R, Rand Rmay be the same or different and represent a moiety selected from the group consisting of hydrogen, C-C-alkyl and C-C-cycloalkyl, Rrepresents a moiety selected from the group consisting of C-C-alkyl and C-C-cycloalkyl, and B is a group according to one of the following structural formulas wherein each occurrence of R, R, and Rmay be the same or different and represent a moiety selected from the group consisting of C-C-alkyl and C-C-cycloalkyl and Ris a moiety selected from the group consisting of hydrogen, C-C-alkyl and C-C-cycloalkyl.

Blocked biuretized isocyanates

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 a carbodiimide 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

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.

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

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 ethylenically unsaturated polyurethanes which are substantially free from isocyanate groups and have

Low viscosity ethylenically unsaturated polyurethanes containing

The present invention relates to a process for the preparation of blocked polyisocyanates containing isocyanurate groups by

Formation of blocked isocyanurate group-containing polyisocyanates from

The present invention is directed to a powder coating composition containing as binder

Blocked polyisocyanate crosslinkers for providing improved flow

Low viscosity, ethylenically unsaturated polyurethanes containing

The present invention relates to process for preparing a coated substrate having improved resistance to yellowing which comprises coating a substrate with a one-component coating composition containing a) a blocked polyisocyanate which is the reaction product of a polyisocyanate with an oxime or lactam blocking agent for isocyanate groups and b) a compound containing at least two isocyanate-reactive groups, provided that component a) and/or component b) contains the group, --CO--(R)N--N(R)--CO--, wherein R represents hydrogen or an optionally substituted hydrocarbon radical, in an amount of 0.01 to 5% by weight, based on the solids content of components a) and b), by applying the one-component coating composition wet-on-wet to a coating composition containing acid groups and/or melamine resins which has previously been applied to the substrate or by adding a melamine resin to the one-component coating composition prior to applying it to the substrate, which may optionally have been precoated. The present invention also relates to the coated substrate having improved resistance to yellowing prepared by this process.

Process for preparing a coating with improved resistance to yellowing

The present invention relates to a blocked polyisocyanate which is the reaction product of a polyisocyanate with

One-component coating compositions containing oxime- or lactam-blocked

A NCO-free, free radical-curable polyurethane coating composition which is particularly suitable for application on heat sensitive substrate is disclosed. The coating contains an allylether-capped isocyanate prepolymer and at least one additional isocyanate prepolymer which is capped with a hydroxyalklyl(meth)acrylate. The composition of the invention yields coatings having good dry time and hardness. An additional embodiment relates to aqueous dispersions of the composition of the invention and to films made therefrom.

Free radical-cured coating compositions

The present invention relates to blocked polyisocyanates based on the reaction product of

Methylamylketoxime blocked polyisocyanates and their use in high solids

The present invention relates to a blocked polyisocyanate which is based on the reaction product of a polyisocyanate with a reversible, monofunctional blocking agent for isocyanate groups, wherein the polyisocyanate is prepared by trimerizing 5 to 85% of the isocyanate groups of a cyclic organic diisocyanate having (cyclo)aliphatically bound isocyanate groups and contains

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Paden City, WV, United States of America

Lanny D Venham