Process to produce polycarbamate, polycarbamate produced thereby and a coating composition comprising the polycarbamate

A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a tetravalent metal, and Z is an anionic functionality or a functionality capable of forming...

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Bibliographische Detailangaben
Hauptverfasser: Lu, Congcong, Yu, Xinrui, Beigzadeh, Daryoosh, He, Yiyong, Margl, Peter, Hull, Jr., John W, Clark, Thomas P, Romer, Duane R
Format: Patent
Sprache:eng
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Zusammenfassung:A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a tetravalent metal, and Z is an anionic functionality or a functionality capable of forming a covalent bond with M and wherein n times a valence number of Z equals X and m times four equals Y wherein the absolute value of X equals the absolute value of Y is provided. Also provided are a polycarbamate produced according to the process and a coating composition comprising the polycarbamate.