Covestro LLC

Bayer Materialscience, LLC

Bayer Polymers LLC

John P Forsythe

Edward P Squiller

David D Steppan

Angela M Beck

Kurt E Best

Timothy J Pike

Neil H Nodelman

Karl W Haider

James R Charron

Brian R Suddaby

Trevor Bonomi

Nicholas LaDieu

Alan Ekin

Myron W Shaffer

Terrell Dean Wayt

Ahren Olson

Aaron A Lockhart

Emery Yuhas

Roy B Clemens

Leone Hermans-Blackburn

Amy S Wylie

Display screen portion with graphical user interface

Display screen portion with a graphical user interface

Two-component coating systems and compositions are disclosed. The coating compositions form crosslinked polyurea coatings and have relatively long pot life and relatively short dry time. The coating compositions include a polyisocyanate, a polyaspartic ester, and a polyetheraspartic ester.

Polyaspartic coating compositions

A coating composition is provided. The composition comprises as component I, a) a polyaspartic acid ester comprising the reaction product of one more diamines, one or more difunctional acrylate-containing compounds and one or more maleic/fumaric acid esters; b) at least one moisture scavenger; c) at least one deaerator; d) at least one plasticizer; and e) optionally additives; and as component II, one or more polyisocyanates. Methods of making and applying the composition to a substrate are also provided. The coating is particularly suitable for use as a gel coat.

Acrylate-modified aspartates and gel coat compositions made therefrom

The present invention is directed to a process for preparing water-blown rigid polyurethane foams having at least an 80% closed-cell content which involves reacting a) at least one polyol mixture which is composed of (i) at least one polymer polyol; (ii) at least one polyol having a hydroxyl value within the range of from about 200 to about 800; and (iii) optionally, at least one polyol having a hydroxyl value within the range of from about 25 to about 115; with b) at least one polymeric isocyanate and/or a prepolymer thereof; in the presence of c) optionally, at least one catalyst; d) water; and e) optionally, at least one additive or auxiliary agent. The present invention is also directed to the closed-cell water blown rigid polyurethane foams produced by the process of the present invention. The invention is further directed to a polyurethane-foam forming mixture which is used to produce the water-blown rigid polyurethane foams of the present invention. Foams produced according to the present invention have reduced friability and acceptable adhesion to substrates as well as acceptable compressive strength.

Process for preparing closed-cell water-blown rigid polyurethane foams having improved mechanical properties

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Allison Park, PA, United States of America

John P Forsythe