| 摘要 |
Coating composition comprising one or more polythiols, one or more polyis ocyanates, and a base compound, e.g., an amine catalyst, and a carboxylic ac id compound, e.g., cyanoacetic acid and/or a halogenated acetic acid, such a s dichloroacetic acid or thfluoroacetic acid. The molar ratio of the acid co mpound to the basic compound is preferably at least 2:1, e.g. at least 10:1.
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