Dow Global Technolgoies LLC

Rohm and Haas Company

Jeff R Anderson

John N Argyropoulos

Gary E Spilman

Paul Foley

Nahrain E Kamber

Eric C Greyson

Caroline Slone

Rebecca S Ortiz

Yiyong He

Daryoosh Beigzadeh

Congcong Lu

Paul Joseph Popa

John Wesley Hull, Jr

Xinrui Yu

Christopher D Rainey

John N Argyropoulas

Christopher Rainey

Nahrain Kamber

Beigzadeh Daryoosh

He Yiyong

Lu Congcong

The present invention provides substantially isocyanate-free multicomponent compositions useful in making rapid dry automotive primer compositions and coatings, the compositions having a % PVC of from 20 to 60, or preferably, from 25 to 50, and comprising one or more pigment, extender or filler, one or more a) polycarbamates from alkyd polyol or acrylic polyol and one or more b) a polyaldehydes or the acetal or hemiacetal thereof as a second component. The multicomponent compositions cure quickly at a temperature of from 0&#xb0; C. to less than 80&#xb0; C. to form a crosslinked polyurethane which dries to enable sanding after only 15 to 45 minutes.

Ambient cure, fast dry automotive refinish primer surfacer compositions and methods of use

The present invention provides a multicomponent composition that is substantially isocyanate-free and comprises a polycarbamate as a first component having a filler, pigment, extender or matting agent and a second component containing an acidic catalyst an alkanol having one OH group, a polyaldehyde and an acetal or hemiacetal of the polyaldehyde. The compositions are shelf stable and useful as two components and avoid problems caused by combining the catalyst with any filler, pigment, extender or matting agent.

Ambient temperature curable isocyanate-free compositions for preparing crosslinked polyurethanes

The instant invention provides a crosslinkable coating composition, and method of producing the same. The crosslinkable coating composition according to the present invention comprises: (a) one or more polycarbamates derived from one or more polyesters comprising the condensation reaction product of one or more polyols with one or more polyacids, wherein said one or more polyols comprise at least 25 percent by weight of one or more units having 4 or more hydroxyl groups; (b) one or more crosslinking agents; (c) one or more acid catalysts; and (d) optionally one or more organic solvents.

Crosslinkable coating composition and method of producing the same

The instant invention provides crosslinkable compositions, and method of producing the same. The non-aqueous single phase crosslinkable composition comprises: (a) a polyol having an average of 2 or more hydroxyl functional groups; (b) polyaldehyde, or acetal or hemiacetal thereof; and (c) an acid catalyst having pK of less than 6; and (d) optionally one or more organic solvents.

Crosslinkable composition and method of producing the same

A crosslinkable composition comprising: (i) one or more polycarbamates; (ii) one or more polyaldehydes; (iii) one or more polyols; and (iv) an acid catalyst is provided. Further provided are a method for making the crosslinkable composition, a crosslinked composition made therefrom, a coating comprising the crosslinked composition and articles comprising a substrate and the coating.

Crosslinkable composition, a method of making the same and a crosslinked composition produced therefrom

The present invention provides methods for making a polycarbamate by feeding a) a urea in fluid form into a reaction medium containing b) an alkyd polyol, such as a short or med oil alkyd polyol to form a reaction mixture and then carbamylating the alkyd polyol by heating the reaction mixture while feeding water in to the reaction mixture, preferably, in the presence of one or more c) carbamylation catalysts. The polycarbamate of the present invention when combined with a polyaldehyde or an acetal or hemiacetal thereof as a second component makes a multicomponent composition that is substantially isocyanate-free, and cures at a temperature of from 0&#xb0; C. to less than 80&#xb0; C. to form a crosslinked polyurethane.

Water feed methods to control MW distribution and byproducts of the carbamylation of urea

The present invention generally relates to a foaminess characterization method for characterizing liquid foams and defoamers and a foam generation method for generating the liquid foams.

Direct quantitative colorimetric measurement of liquid foam

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Midland, MI, United States of America

Jeff R Anderson