Title: Resinous compositions curable through a transesterification curing mechanism

Abstract: Coating compositions comprising a polymeric polyol with a polyester crosslinking agent having at least two beta-amido ester groups per molecule are disclosed. The compositions, when applied to a substrate and cured in the presence of a transesterification catalyst, give solvent-resistant coatings.

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Inventors: Valko, Joseph T. (Gibsonia, PA)

Application Number: 06/288241
Filing Date: 1981-07-29
Publication_date: 1983-12-27
Assignee: PPG INDUSTRIES INC (US)

Primary Class(es): 523/414 525/444, 525/533, 528/113, 524/543, 523/417, 524/601,
Other Classes: C08G63/12; C09D163/00; C09D167/00; C09D201/06; C08G63/00; C09D201/02; C08L63/02
US Patent Ref:

3937679	February, 1976	Bosso et al.	260/29.3
4101486	July, 1978	Bosso et al.	260/29.2TN
4307153	December, 1981	Bernelin et al.	428/413
4332711	June, 1982	Kooymans et al.	524/539

Other Refs: EP0008262EP0012463EP0040867GB739701GB1283653GB1525331GB1531046

February, 1980
June, 1980
December, 1981
November, 1955
August, 1972
September, 1978
November, 1978

Other References: J. Prakt. Chem. 312 1970, pp. 660-668, "On the Chemistry of Metal-Ion Catalyzed Transesterification Reactions" by H. Zimmermann and E. Schaaf.

Primary Examiner: Pertilla, Theodore E.
Assistant Examiner:
Attorney: Uhl, William J.

Claims:

I claim: