| 摘要 |
A polyester powder paint containing:(A) polyurea, (B) COOH group containing polyester synthesized from polyols and polycarboxylic acids and/or their esters and/or anhydrides, comprising:(B1) at least one amorphous polyester, (B2) at least one (semi)crystalline polyester, and (C) at least one crosslinker based on polyepoxy- or polyhydroxyalkylamide compound of functionality at least 2 is new. A polyester powder paint containing (wt.%):(A) polyurea (05-25), (B) COOH group containing polyester synthesized from polyols and polycarboxylic acids and/or their esters and/or anhydrides of COOH number 15-150 mg KOH/g (50-90), comprising:(B1) at least one amorphous polyester 40-80), (B2) at least one (semi)crystalline polyester (20-60), and (C) at least one crosslinker based on polyepoxy- or polyhydroxyalkylamide compound of functionality at least 2 (1-25), where at least 0.6-1.2 reactive crosslinker groups are available per COOH group is new.
|
