Main > COATINGS > Organic Coatings > Powder Coatings > Crosslinking Agent > Blocked PolyIsocyanates > Co.: USA. D > Patent > Claims Etc > Claim 1: PolyUrethane Powder Coatin > g 1,2,4-Triazole-Blocked PolyIsocya > nate (I) & Hydroxyl PolyEster (II); > (I): Physical Mixt. of (1) > Aliphatic Urethane- or Isocyanurate > -Funct. PolyIsocyanate & (2) > (Cyclo)Aliphatic Urethane-or > Isocyanurate-Funct. PolyIsocyanate > (III); Wherein Mixt Contg No Mixt > of > 2 (III); Wherein Isocyanate > Groups Blocked; such that > 0.5-1 mol 1,2,4-Triazol/Isocyanate > Equiv. & (II) has a Functionality > of .gtoreq.2, OH No.= 30 to 150 mg > KOH/g, Viscosity <40,000 mPa.s at > 160C & MP=75-100C; Wherein > (A) (1) Aliphatic Isocyanurate- > Funct. PolyIsocyanate or (B) (2)

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Funct. PolyIsocyanate or (B) (2)'s subsections
CycloAliphatic Urethane-Functional

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