Bayer Corporation

Miles Inc.

Bayer Materialscience, LLC

Mobay Corporation

Bayer Aktiengesellschaft

Mobay Chemical Corporation

William E Slack

Rick L Adkins

Hersel T Kemp, Ii

Edward P Squiller

David D Steppan

Philip E Yeske

Terry A Potter

Neil H Nodelman

William E Miller

Peter H Markusch

James W Rosthauser

Robson M Mafoti

Karl W Haider

Richard S Pantone

Rudolf Sundermann

Sanjeev Madan

Ralf Guether

Edmund J Madaj

Kenneth L Dunlap

Hans Georg Schmelzer

Jyothi S Pisipati

Josef Pedain

Klaus Konig

Douglas A Wicks

Josef Sanders

Scott A Kane

Robert P Yeater

Kenneth P Yonek

Helmut Woynar

Patricia B Jacobs

Michael F Hurley

Charles M Milliren

Frank Sanns, Jr

Clarence D Blue

Albert Magnotta

Robert M Loring

Ronald Zibert

Alan D Bushmire

Richard E Keegan

P Richard Hergenrother

Ronald A Cageao

Larry W Arndt

Louis Renbaum

Bruce H Potts

Richard A Riccitelli

Michael S Super

Mark R Kratz

Lewis S Newman

Charles G Beckley

Jay M Capelli

This invention relates to novel liquid, storage-stable, amide-modified diphenylmethane diisocyanates and to a process for the production of these liquid, storage-stable diphenylmethane diisocyanates.

Amide/urea-modified liquid diphenylmethane diisocyanates

This invention relates to novel liquid, storage-stable diisocyanates and to a process for the preparation of these liquid, storage-stable diisocyanates. These comprise diphenylmethane diisocyanate and at least one compound which contains both an amide group and a hydroxyl group and which corresponds to one of two specified formulas.

Liquid modified diphenylmethane diisocyanates

This invention relates to storage-stable, liquid, partially trimerized and allophanized polyisocyanates having an NCO group content of 15 to 41% by weight, and comprising 5 to 85% by weight of toluene diisocyanate, 5 to 85% by weight of a polyisocyanate of the diphenyl-methane series and an organic compound or mixture thereof. The present invention also relates to a process for the preparation of the storage-stable, liquid, partially trimerized and allophanized polyisocyanates; to storage-stable, liquid urethane prepolymers of these partially trimerized and allophanized polyisocyanates; and to a process for the production of these storage-stable, liquid, urethane prepolymers.

Liquid partially trimerized and allophanized polyisocyanates based on toluene diisocyanate and diphenylmethane diisocyanate

This invention relates to stable liquid biuret modified toluene diisocyanates, prepolymers thereof, stable liquid biuret allophanate modified toluene diisocyanates, prepolymers thereof, and to processes for the preparation of these compositions. The stable liquid biuret modified toluene diisocyanates comprise a secondary amine based biuret modified TDI having an NCO group content of about 12 to about 46% by weight.

Stable liquid biuret modified and biuret allophanate modified toluene diisocyanates, prepolymers thereof, and processes for their preparation

The present invention relates to a new high functionality MDI. In particular, this invention relates to polymeric allophanates based on diphenylmethane diisocyanate having an NCO group content of 12 to 30%, prepolymers thereof, and processes for the production of these compositions. The prepolymers are stable liquids having NCO group contents of about 10 to about 28%.

Polymeric allophanates of diphenylmethane diisocyanate, perpolymers of these polymeric allophanates, and processes for the preparation of the polymeric allophanates and the prepolymers thereof

Polymeric allophanates of diphenylmethane diisocyanate, prepolymers of these polymeric allophanates, and processes for the preparation of the polymeric allophanates and the prepolymers thereof

This invention relates to stable liquid modified diphenylmethane diisocyanates which comprise a secondary amine based biuret modified diphenylmethane diisocyanate having an NCO group content of about 12 to about 30% by weight. The present invention also relates to stable liquid biuret allophanate modified MDIs, to stable liquid prepolymers of biuret modified MDIs, to stable liquid prepolymers of biuret allophanate modified MDIs, and to processes for the preparation of these compositions.

Stable liquid biuret modified and biuret allophanate modified diphenylmethane diisocyanates, prepolymers thereof, and processes for their preparation

High 2,4&prime;-diphenylmethane diisocyanate content prepolymers

This invention relates to high performance RIM (reaction injection molded) poly(urethane)urea elastomers, and to a process for their production. These elastomers comprise the reaction product of an allophanate-modified diphenylmethane diisocyanate prepolymer having an NCO group content of about 5 to about 30%, with an isocyanate-reactive component comprising a high molecular weight amine-terminated polyether polyol, an aromatic diamine chain extender, and, optionally, a chain extender or crosslinker selected from the group consisting of aliphatic amine terminated polyether polyols and aliphatic hydroxyl terminated polyether polyols, optionally, in the presence of an internal mold release agent, a surfactant and a filler.

High performance RIM elastomers and a process for their production

This invention relates to a continuous process for the production of allophanate modified diphenylmethane diisocyanates having an NCO group content of 19 to 32% and an urethane content of less than 2 area % by GPC analysis. The process comprises (1) continuously reacting (a) diphenylmethane diisocyanate and (b) an alcohol, in the presence of (c) at least 25 ppm of an allophante catalyst, based on the combined weight of the diphenylmethane diisocyanate and the alcohol, in a reactor in an oxygen-free environment; (2) continuously treating the product exiting the reactor with a catalyst stopper at the reaction temperature; and (3) cooling the resultant product.

Continuous process for the production of MDI allophanates

A method for making an energy-absorbing foam having a density that is less than about 7 pcf that exhibits excellent strength properties and that is particularly suitable for automobile bumper applications. The invention is also directed to the energy-absorbing foam made with the method.

Low-density, water blown polyurethane foams for energy-absorbing applications

The pot life of an isocyanate formulation is controlled by including a chain extender having (a) at least two secondary amine groups, (b) no primary amine groups, and (c) a reactivity low enough that the chain extender will not react sufficiently with isocyanate groups present in the isocyanate formulation to increase the viscosity of the isocyanate formulation to more than 2000 mPa&middot;s within 5 seconds in the isocyanate formulation.

Stable isocyanate formulations

This invention relates to storage-stable, liquid, partially trimerized polyisocyanates having an NCO group content of 24 to 40% by weight, and comprising 20 to 88% by weight of toluene diisocyanate and 12 to 80% by weight of a polyisocyanate of the diphenylmethane series. The present invention also relates to a process for the preparation of the storage-stable, liquid, partially trimerized polyisocyanates; to storage-stable, liquid urethane prepolymers of these partially trimerized polyisocyanates; and to a process for the production of these storage-stable, liquid, urethane prepolymers.

Liquid partially trimerized polyisocyanates based on toluene diisocyanate and diphenylmethane diisocyanate

This invention relates to liquid polyisocyanate compositions having improved freeze stability. These liquid polyisocyanate compositions have an NCO group content of 15 to 30%, and comprise (A) an allophanate-modified MDI and having an NCO group content of 16 to 32.5%, (B) a low molecular weight branched aliphatic dihydroxy compound, and (C) an epoxide functional compound which is present in an amount of 0.01 to 1% by weight, based on the combined weight of components (A) and (B).

Liquid MDI adducts wtih improved freeze stability

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Moundsville, WV, United States of America

William E Slack