Masked curing catalyst for acid-curable compositions

Details Masked curing catalyst for acid-curable compositions Masked curing catalyst for acid-curable compositions

1984-12-17

1987-01-13

Pertilla, Theodore E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonate esters

546154, 546155, 546262, 546314, 546315, 548455, 548461, 548485, 548492, 549 23, 549 53, 549 54, 549 72, 549400, 549466, 549472, 549488, C07C14368

Patent

active

046365753

ABSTRACT:
Compounds of formula II and X ##STR1## wherein X is O, S, SO.sub.2, methylene, isopropylidene or NCOR.sub.7 where R.sub.7 is alkyl or phenyl, Y is a direct bond or methylene, n is 1 or 2, R.sub.4 is alkyl, phenyl, naphthyl, cycloalkyl, aralkyl, camphoryl, CF.sub.3, CCl.sub.3, F or NH.sub.2 ; or is alkylene, phenylene or naphthylene, R.sub.5 is hydrogen or halogen, R.sub.6 is hydrogen, alkyl, phenyl or cyano, R.sub.8 is substituted phenyl, substituted naphthyl, anthryl or phenanthryl, R.sub.9 is alkyl R.sub.10 is alkyl or substituted phenyl, and R.sub.11 is alkyl, substituted phenyl, naphthyl, camphoryl, alkylene, phenylene or naphthylene, are latent curing catalysts for acid-curable stoving lacquers. They are distinguished by satisfactory solubility in the acid-curable resin systems, can be stored virtually indefinitely in the dark and, when exposed to shortwave light, make it possible to cure the resins by acid catalysts at a relatively low temperature.

REFERENCES:
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patent: 3732273 (1973-05-01), Heine et al.
patent: 4102687 (1978-07-01), Crivello
B. C. B. Bezuidenhoudt et al., J. Chem. Soc., Perkin I. 1981; 263.
I. J. Borowitz et al., J. Org. Chem., 34, 1595 (1969).
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G. F. Koser et al., J. Org. Chem. 47, 2487, (1982).
K. V. Auwers et al., Ann. 526, 143 (1936).
C. L. Stevens et al., J. Am. Chem. Soc. 76, 4402, (1954).

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