Aqueous polyester coating composition, method of making, and coated conductor
Patent 4130520 Issued on December 19, 1978. Estimated Expiration Date: 
March 25, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 25, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3211585 3272785 3310512 3426098 3553215 3652501 3668277 3882188 Aqueous insulating varnishes Patent #: 4011185 InventorsAssigneeApplicationNo. 05/781260 filed on 03/25/1977US Classes:524/317, Oxygen atom other than as part of a carboxylic acid group, e.g., glycolic ester, etc.428/379, Including metal or compound thereof (excluding glass, ceramic and asbestos)524/364, With water, hydrocarbon, halohydrocarbon, or organic oxygen containing nonreactive material524/376, OH group, e.g., ether-alcohol solvent, etc.524/386, At least two -OH groups524/538, Solid polymer or SICP derived from at least one nitrogen-containing carboxylic acid or derivative reactant or from a carboxylic acid or derivative and a polyamine525/443, Contains an amine-, N-C(=X)-, or N-S(=O)-containing reactant or polymer thereof (X is chalcogen)525/448Solid polymer derived from polycarboxylic acid or derivative and polyhydroxy compound is derived from two or more polycarboxylic acids or derivativesExaminersPrimary: Tillman, MurrayAssistant: Koeckert, Arthur H. Attorney, Agent or FirmInternational ClassesC09D 167/06 (20060101)C08G 63/00 (20060101) C08G 63/676 (20060101) C08G 63/553 (20060101) H01B 3/42 (20060101) AbstractA water dispersible polyester resin solution is made by esterifying a mixture, consisting of: about 2.0 moles to about 5.0 moles of an organic, dicarboxylic acid selected from at least one, of an aromatic dicarboxylic acid, and tetrahydrophthalic acid; about 0.1 mole to about 1.5 moles of an organic, unsaturated aliphatic dicarboxylic acid; about 0.1 mole to about 6.5 moles of an organic, saturated aliphatic dicarboxylic acid; about 1.0 mole to about 5.0 moles of an organic, alicyclic dihydric alcohol; 0 mole to about 5.0 moles of an organic, aliphatic dihydric alcohol and about 0.6 mole to about 1.2 moles of a compound effective to cause cross linking; and adding an amount of organic solvent effective to provide a solution of between about 50 wt. % to about 90 wt. % solids content; wherein the esterification reaction is continued until the acid value drops to between about 45 to about 65, and wherein the mole ratio of OH/COOH = 0.30 to 0.90. | |
