Coating composition for achieving excellent MVSS adhesion

Details Coating composition for achieving excellent MVSS adhesion Coating composition for achieving excellent MVSS adhesion

2011-08-02

2011-08-02

Kiliman, Leszek (Department: 1788)

Stock material or miscellaneous articles

Composite

Of epoxy ether

C428S423100, C428S520000, C526S301000, C525S438000

Reexamination Certificate

active

07989070

ABSTRACT:
A coating composition comprises a crosslinkable carbamate-functional resin and an aminoplast. The aminoplast comprises the reaction product of an aldehyde and a melamine. The aminoplast has a content of imino groups of less than or equal to about 10%, a content of alkylol groups of at least about 7%, and a remainder of groups being alkoxyalkyl groups, all based on a total number of reactive sites present in the melamine prior to reaction. A coating system includes a clear coat layer that comprises the reaction product of the crosslinkable carbamate-functional resin and the aminoplast. Threshold adhesion strength, in accordance with MVSS standards, can be achieved between glass and the coating system when the crosslinkable carbamate-functional resin and the specific aminoplast set forth above are reacted to form the clear coat layer, while minimizing problems associated with high viscosity of aminoplasts having a high content of imino groups of greater than 10%.

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“CYMEL Amino Resin Crosslinkers for the Coating Industry”, Cytec Industries, Inc., 2008, 42 pages.

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