Polyester resin powder coating compositions

Details Polyester resin powder coating compositions Polyester resin powder coating compositions

1994-05-11

1995-02-21

Short, Patricia A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525445, 525448, 525934, C08L 6702

Patent

active

053916433

ABSTRACT:
The invention consists of a new method of curing a polyester powder coating composition. The resin is cured by the use of an organotitanium or organozirconium derivative of an alkanolamine having the formula M.sub.3 [(OR).sub.3 N].sub.4 or O[M(OR).sub.3 N].sub.2 or R.sup.1 [OM(OR).sub.3 N].sub.x where M represents Ti or Zr, R represents a divalent aliphatic radical, x is 1 to 4 and R .sup.1 is a saturated hydrocarbyl group or a group containing one or more ether linkages. The method is suitable for use with both hydroxyl-rich and carboxyl-rich polyester resins and the cured coatings have desirable physical properties.

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