Coating composition comprising a carbamate-functional poly(ethylene-acrylate) copolymer and method of coating substrates
AssigneeBASF Coatings GmbH
InventorsZhongliang ZHU, Donald H. Campbell
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Abstract
Disclosed herein are a method for producing materials having at least one carbamate functionality, carbamate-functional materials obtained from the process, coating compositions including said carbamate-functional materials, and a process for at least partially coating a substrate with the coating compositions. The method disclosed herein reduces unwanted transesterification which can occur as a side reaction by using a tertiary alkyl carbamate in combination with a tin catalyst and thus results in increased yields and purity of the carbamate-functional materials.
Claims20
A method for preparing a carbamate-functional material, wherein at least one alkyl carbamate compound of general formula (I)
- in which
- R1 is an organic residue bearing at least one tertiary carbon atom and optionally at least one aryl group and/or at least one heteroatom;
- R2, R3 are, independently from each other, selected from the group consisting of hydrogen and C1 to C10 alkyl groups, and
- is reacted with at least one compound having at least one hydroxy group in the presence of at least one tin containing catalyst.
Dependencies are inferred from the claim text.