Abstract 1. A THERMOSETTING COATING COMPOSITION IN THE FORM OF A POWDER HAVING AN AVERAGE PARTICLE SIZE RANGE OF FROM ABOUT 10 TO ABOUT 300 MICRONS COMPRISING (A) A POLYESTER DERIVED FROM A DICARBOXYLIC ACID COMPONENT, AT LEAST 50 MOLE PERCENT OF WHICH IS TEREPHTHALIC ACID OR ISOPHTHALIC ACID, A GLYCOL COMPONENT, AT LEAST 50 MOLE PERCENT OF WHICH IS NEOPENTYL GLYCOL, AND FROM ABOUT 2 TO ABOUT 10 MOLE PERCENT OF A POLYOL CONTAINING FROM 4 TO 16 CARBON ATOMS AND HAVING AT LEAST 3 PRIMARY HYDROXYL GROUPS, (B) FROM ABOUT 2 TO 15 PHR, BY WEIGHT OF A MELAMINE CROSS-LINKING AGENT, AND (C) FROM ABOUT 0.1 PHR. TO ABOUT 3.0 PHR. BY WEIGHT OF THE REACTION PRODUCT OF AN ACID AND A COMPOUND CONTAINING OXIRANE GROUPS, SAID POLYESTER BEING FREE OF APPRECIABLE CROSSLINKING.
A THERMOSETTING COATING COMPOSITION IN THE FORM OF A POWDER HAVING AN AVERAGE PARTICLE SIZE RANGE OF FROM ABOUT 10 TO ABOUT 300 MICRONS COMPRISING (A) A POLYESTER DERIVED FROM A DICARBOXYLIC ACID COMPONENT, AT LEAST 50 MOLE PERCENT OF WHICH IS TEREPHTHALIC ACID OR ISOPHTHALIC ACID, A GLYCOL COMPONENT, AT LEAST 50 MOLE PERCENT OF WHICH IS NEOPENTYL GLYCOL, AND FROM ABOUT 2 TO ABOUT 10 MOLE PERCENT OF A POLYOL CONTAINING FROM 4 TO 16 CARBON ATOMS AND HAVING AT LEAST 3 PRIMARY HYDROXYL GROUPS, (B) FROM ABOUT 2 TO 15 PHR, BY WEIGHT OF A MELAMINE CROSS-LINKING AGENT, AND (C) FROM ABOUT 0.1 PHR. TO ABOUT 3.0 PHR. BY WEIGHT OF THE REACTION PRODUCT OF AN ACID AND A COMPOUND CONTAINING OXIRANE GROUPS, SAID POLYESTER BEING FREE OF APPRECIABLE CROSSLINKING.
Claim 2
Dependent Claim
133 words
A THERMOSETTING COATING COMPOSITION IN THE FORM OF A POWDER HAVING AN AVERAGE PARTICLE SIZE RANGE OF FROM ABOUT 10 TO ABOUT 300 MICRONS COMPRISING (A) A POLYESTER DERIVED FROM A DICARBOXYLIC ACID COMPONENT, AT LEAST 50 MOLE PERCENT OF WHICH IS TEREPHTHALIC ACID OR ISOPHTHALIC ACID, A GLYCOL COMPONENT, AT LEAST 50 MOLE PERCENT OF WHICH IS NEOPENTYL GLYCOL, AND FROM ABOUT 2 TO ABOUT 10 MOLE PERCENT OF A POLYOL CONTAINING FROM 4 TO 16 CARBON ATOMS AND HAVING AT LEAST 3 PRIMARY HYDROXYL GROUPS, (B) FROM ABOUT 2 TO 15 PHR, BY WEIGHT OF A MELAMINE CROSS-LINKING AGENT, AND (C) FROM ABOUT 0.1 PHR. TO ABOUT 3.0 PHR. BY WEIGHT OF THE REACTION PRODUCT OF AN ACID AND A COMPOUND CONTAINING OXIRANE GROUPS, SAID POLYESTER BEING FREE OF APPRECIABLE CROSSLINKING.