Polyester diol extended uralkyd resin and coating compositions containing the same
First Claim
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1. A polyester diol extended, ungelled, isocyanate-free uralkyd resin comprising the reaction product ofa. from about 60 to about 94 percent by weight of oil modified alkyd resin having an oil length of from about 30 to about 65 percent;
- b. from about 3 to about 20 percent by weight of essentially nitrogen-free polyester diol having a number average molecular weight in the range of from about 800 to about 4000; and
c. from about 3 to about 20 percent by weight of diisocyanate.
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Abstract
Coating compositions containing polyester diol extended uralkyd resins form flexible coatings. Such uralkyd resins are prepared by reacting oil modified alkyd resin, polyester diol having a number average molecular weight in the range of from about 800 to about 4000, and diisocyanate.
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Citations
23 Claims
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1. A polyester diol extended, ungelled, isocyanate-free uralkyd resin comprising the reaction product of
a. from about 60 to about 94 percent by weight of oil modified alkyd resin having an oil length of from about 30 to about 65 percent; -
b. from about 3 to about 20 percent by weight of essentially nitrogen-free polyester diol having a number average molecular weight in the range of from about 800 to about 4000; and c. from about 3 to about 20 percent by weight of diisocyanate. - View Dependent Claims (2)
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3. A polyester diol extended, ungelled, isocyanate-free uralkyd resin comprising the reaction product of
a. from about 80 to about 94 percent by weight of air drying oil modified alkyd resin having an oil length of from about 30 to about 65 percent; -
b. from about 3 to about 10 percent by weight of essentially nitrogen-free polyester diol having a number average molecular weight in the range of from about 800 to about 4000; and c. from about 3 to about 10 percent by weight of diisocyanate. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of preparing a polyester diol extended, ungelled, isocyanate-free uralkyd resin comprising reacting
a. from about 60 to about 94 percent by weight of oil modified alkyd resin having an oil length of from about 30 to about 65 percent; -
b. from about 3 to about 20 percent by weight of essentially nitrogen-free polyester diol having a number average molecular weight in the range of from about 800 to about 4000; and c. from about 3 to about 20 percent by weight of diisocyanate.
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17. A method of preparing a polyester diol extended, ungelled, isocyanate-free uralkyd resin comprising reacting
a. from about 80 to about 94 percent by weight of air drying, oil modified alkyd resin having an oil length of from about 30 to about 65 percent; -
b. from about 3 to about 10 percent by weight of essentially nitrogen-free polyester diol having a number average molecular weight in the range of from about 800 to about 4000; and c. from about 3 to about 10 percent by weight of diisocyanate.
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18. In a coating composition having a binder, the improvement wherein said binder comprises from about 25 to about 100 percent by weight of a polyester diol extended, ungelled, isocyanate-free uralkyd resin comprising the reaction product of
a. from about 60 to about 94 percent by weight of oil modified alkyd resin having an oil length of from about 30 to about 65 percent; -
b. from about 3 to about 20 percent by weight of essentially nitrogen-free polyester diol having a number average molecular weight in the range of from about 800 to about 4000; and c. from about 3 to about 20 percent by weight of diisocyanate. - View Dependent Claims (19, 20)
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21. In a coating composition having a binder, the improvement wherein said binder comprises from about 25 to about 100 percent by weight of a polyester diol extended, ungelled, isocyanate-free uralkyd resin comprising the reaction product of
a. from about 80 to about 94 percent by weight of air drying, oil modified alkyd resin having an oil length of from about 30 to about 64 percent; -
b. from about 3 to about 10 percent by weight of essentially nitrogen-free polyester diol having a number average molecular weight in the range of from about 800 to about 4000; and c. from about 3 to about 10 percent by weight of diisocyanate. - View Dependent Claims (22, 23)
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Specification