Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1997-12-18
1999-08-03
Sellers, Robert E.
Coating processes
With post-treatment of coating or coating material
Heating or drying
427386, 525533, 525934, B05D 302, B05D 502, C08L 6300
Patent
active
059322888
ABSTRACT:
An epoxy coating powder composition and a method for controlling the denseness of cured wrinkle finish patterns are provided by the use of a curing agent mixture comprising a blocked Lewis acid, methylenedisalicylic acid and a ring-substituted homolog thereof having the formula ##STR1## wherein x and y are from 1 to 3, and R.sup.1 and R.sup.2 are, independently, hydrogen, alkyl groups having from 1 to 20 carbon atoms, aryl groups having from 6 to 10 carbon atoms, or aryl-substituted methylene groups; with the proviso that when x=y=3, R.sup.1 and R.sup.2 .noteq.hydrogen;
wherein the ratio of methylene disalicylic acid and the ring-substituted homolog is from about 50:50 to about 2:98 by weight.
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Decker Owen H.
Tarnoski Charles P.
Didrick Robert M.
Morton International Inc.
Sellers Robert E.
White Gerald K.
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