Oil-modified alkyd compositions with coal acids

Claim 1

AN OIL-MODIFIED ALKYD COMPOSITION COMPRISED OF THE ESTERIFIED PRODUCT OF REACTION BETWEEN (A) FROM 2 TO 3 EQUIVALENTS OF A POLYHYDROXY GLYCOL COMPOUND SELECTED FROM THE GROUP CONSISTING OF NORMALLY LIQUID POLYETHYLENE GLYCOLS THAT CONTAIN AT LEAST FOUR CONDENSED ETHYLENE OXIDE UNITS IN THEIR MOLECULES, NORMALLY LIQUID POLYPROPYLENE GLYCOLS THAT CONTAIN AT LEAST TWO CONDENSED PROPYLENE OXIDE UNITS IN THEIR MOLECULES? NORMALLY LIQUID GLYCOLS AND POLYFLYCOLS THAT CONTAIN AT LEAST 4 CARBON ATOMS IN THEIR MOLECULES AND HAVE AT LEAST ONE SECONDARY HYDROXYL SUBSTITUENT GROUP WHEN THEY CONSIST OF LESS THAN 6 CARBON ATOMS, AND MIXTURES THEREOF? (D) FROM ABOUT 0.1 TO 1.80 EQUIVALENTS OF A MONOBASIC UNSATURATED DRYING OIL FATTY ACIDS MIXTURE? AND (C) FROM ABOUT 1.9 TO 0.2 EQUIVALENTS OF COAL ACIDS WHICH ARE THE WATER-SOLUBLE MIXED AROMATIC POLYCARBOXYLIC ACIDS OF THE CLASS THAT ARE THE PRODUCT OF THE OXIDATION OF COAL AND HAVE AN AVERAGE MOLECULAR WEIGHT OF FROM 200 TO 300, AN APPARENT AVERAGE EQUIVALENT WEIGHT OF FROM 70 TO 90, AND CONTAIN AN AVERAGE OF FROM 2.5 TO 5 CARBOXYLIC GROUPS PER AROMATIC NUCLEUS IN THEIR MOLECULE.