Low viscosity adducts of a polycaprolactone polyol and a polyepoxide
First Claim
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1. Curable coating composition comprising:
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde resin;
(2) an adduct of a polycaprolactone polyol and a polyepoxide comprising the reaction product of at least one polycaprolactone polyol and a polyglycidyl epoxide containing two or more epoxy groups per molecule, said polycaprolactone polyol being employed in an amount at least sufficient to effect substantially complete reaction of the epoxy groups of the polyglycidyl epoxide; and
(3) a catalyst or a photoinitiator.
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Abstract
This invention is directed to adducts of a polycaprolactone polyol and a polyepoxide comprising the reaction product of at least one polycaprolactone polyol and a polyepoxide containing two or more epoxy groups per molecule in a molar ratio of polycaprolactone polyol to polyepoxide of from about 2:1 to about 3:1, said adducts having an oxirane content of less than about 0.10 percent and a viscosity of less than about 3700 centistokes at 54.5° C. The adducts are useful in the formulation of high solids coating compositions, polyurethane elastomers, inks, sealants, adhesives and the like.
40 Citations
34 Claims
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1. Curable coating composition comprising:
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde resin;
(2) an adduct of a polycaprolactone polyol and a polyepoxide comprising the reaction product of at least one polycaprolactone polyol and a polyglycidyl epoxide containing two or more epoxy groups per molecule, said polycaprolactone polyol being employed in an amount at least sufficient to effect substantially complete reaction of the epoxy groups of the polyglycidyl epoxide; and
(3) a catalyst or a photoinitiator. - View Dependent Claims (2, 3, 5, 6, 7, 8, 9, 10, 11)
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde resin;
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4. Curable coating composition comprising:
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde resin;
(2) an adduct of a polycaprolactone polyol and a polyepoxide comprising the reaction product of at least one polycaprolactone polyol and a polyepoxide containing two or more epoxy groups per molecule in a molar ratio of polycaprolactone polyol to polyepoxide of from about 2;
1 to about 3;
1, said adduct having an oxirane content of less than about 0.10 percent and a viscosity of less than about 3700 centistokes at 54.5°
C.; and
(3) a catalyst or a photoinitiator. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde resin;
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22. Curable coating composition comprising:
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde resin;
(2) an adduct of a polycaprolactone polyol and a polyepoxide comprising the reaction product of one polycaprolactone polyol and a polyepoxide containing two or more epoxy groups per molecule in a molar ratio of polycaprolactone polyol to polyepoxide of from about 2;
1 to about 3;
1, said adduct having an oxirane content of less than about 0.50 percent and a viscosity of less than about 20,000 centistokes at 54.5°
C.; and
(3) a catalyst or a photoinitiator. - View Dependent Claims (23, 24)
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde resin;
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25. Curable coating composition comprising:
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde;
(2) a low viscosity adduct of a polycaprolactone polyol and a polyepoxide; and
(3) a catalyst or a photoinitiator, said adduct being prepared by the process comprises reacting at least one polycaprolactone polyol and a polyepoxide containing two or more epoxy groups per molecule in the presence of a sulfonic acid catalyst or derivative thereof at a temperature of from about 80°
to about 225°
C., said polycaprolactone polyol, polyepoxide and sulfonic acid catalyst or derivative thereof being employed in an amount at least sufficient to effect substantially complete reaction of the epoxy groups of the polyepoxide to give an oxirane content of less than about 0.10 percent and in a sufficiently short period of time or less than about 6 hours whereby to minimize the formation of high viscosity product. - View Dependent Claims (26, 27)
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde;
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28. Curable coating composition comprising:
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde resin;
(2) an adduct of a polycaprolactone polyol and a polyepoxide; and
(3) a catalyst or a photointiator, said adduct being prepared by the process for preparing a low viscosity adduct of a polycaprolactone polyol and a polyepoxide which process comprises reacting at least one polycaprolactone polyol and a polyglycidyl epoxide containing two or more epoxy groups per molecule in the presence of a sulfonic acid catalyst or derivative thereof at a temperature of from about 80°
C., said polycaprolactone polyol, polyglycidyl epoxide and sulfonic acid catalyst or derivative thereof being employed in an amount at least sufficient to effect substantially complete reaction of the epoxy groups of the polyglycidyl epoxide in a sufficiently short period of time whereby to minimize the formation of a high viscosity product. - View Dependent Claims (29, 30)
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde resin;
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31. Curable coating composition comprising:
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde resin;
(2) an adduct of a polycaprolactone polyol and a polyepoxide; and
(3) a catalyst or a photoinitiator, said adduct being prepared by the process for preparing a low viscosity adduct of a polycaprolactone polyol and a polyepoxide which process comprises reacting one polycaprolactone polyol and a polyepoxide containing two or more epoxy groups per molecule in the presence of a sulfonic acid catalyst or derivative thereof at a temperature of from about 80°
C. to about 225°
C., said polycaprolactone polyol, polyepoxide and sulfonic acid catalyst or derivative thereof being employed in an amount at least sufficient to effect substantially complete reaction of the epoxy groups of the polyepoxide in a sufficiently short period of time whereby to minimize the formation of a high viscosity product. - View Dependent Claims (32, 33)
- (1) a polyepoxide containing two or more epoxy groups per molecule, or an amino-formaldehyde resin;
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34. Curable coating composition comprising:
- (1) a polyisocyanate;
(2) an adduct of a polycaprolactone polyol and a polyepoxide comprising the reaction product of at least one polycaprolactone polyol and a polyepoxide containing two or more epoxy groups per molecule in a molar ratio of polycaprolactone polyol to polyepoxide of from about 2;
1 to about 3;
1, said adduct having an oxirane content of less than about 0.10 percent and a viscosity of less about about 3700 centisokes at 54.5°
C.; and
(3) a catalyst or a photoinitiator.
- (1) a polyisocyanate;
Specification