Vapor permeation curable coatings comprising polymercaptan resins and multi-isocyanate curing agents
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United States of America Patent
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Jun 28, 1988
Issued Date -
N/A
app pub date -
Sep 9, 1986
filing date -
May 31, 1985
priority date (Note) -
Expired
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Abstract
Disclosed is a method for curing a film of a coating composition under vapor permeation curable conditions. Such method comprises exposing a coating composition to a vaporous tertiary amine catalyst. The coating composition can be in the form of an atomizate which is concurrently generated and mixed with a vaporous tertiary amine catalyst followed by application to a substrate, or can be an applied film of the coating composition which is exposed to the vaporous tertiary amine catalyst. The coating composition comprises a polymercapto-compound and a multi-isocyanate curing agent. The coating composition can be formulated to contain very high solids content (e.g. in excess of 70% and on up to 100% non-volatile solids).
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