C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/262
C08G 59/40 (2006.01) C08G 59/68 (2006.01) C08K 5/405 (2006.01) C09D 133/14 (2006.01) C09D 163/00 (2006.01)
Patent
CA 2022628
The present invention describes the use of 1,3-dialkylimidazole-2-thiones as a catalyst for epoxy/anhydride reactions (and other reactions) and a method of making these catalysts. Epoxy/anhydride coatings containing these improved catalysts offer the following advantages: improved appearance (especially since even weeks after application the coatings still have a "wet" look); better pot-life; improved resistance to alkaline substances which will improve durability; improved solubility: and coatings which have a reduced volatile organic content (VOC).
Arduengo Anthony J. III
Barsotti Robert J.
Corcoran Patrick H.
Dimock Stratton Llp
E. I. Du Pont de Nemours And Company
The Board Of Trustees Of The University Of Alabama
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