| 摘要 |
Provided are a novel two-pack type coating system for preparing a polyurea coating which is cured remarkably rapidly, and a coated product obtained from the coating system. The two-pack type coating system comprises a polyisocyanate containing a sulfonate group; and an amino-functional polyaspartate represented by the formula 1, wherein X is an n-valent organic group obtained by removing a primary amino group from an n-valent polyamine; R1 and R2 are identical or different each other and are an organic group inert to an isocyanate group under the reaction condition; and n is an integer of 2 or more. Optionally the coating system comprises further a polyaldimine and/or a polyketimine.
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