Method of making a high temperature capability water soluble...

C - Chemistry – Metallurgy – 08 – K

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117/197, 400/740

C08K 5/34 (2006.01) C08G 63/685 (2006.01) C08L 67/00 (2006.01) C09D 5/25 (2006.01) H01B 3/42 (2006.01)

Patent

CA 1118544

16 ABSTRACT OF THE DISCLOSURE A high temperature capability, water soluble polyester resin solution is made by esterifying an admix- ture comprising: an organic, aliphatic dihydric alcohol, an organic, polycarobxylic acid containing major portions of aromatic tricarboxylic acid, an organic, aliphatic dicarbox- ylic acid, and tris (2 hydroxy alkyl) isocyanurate; and then adding an amount of organic solvent effective to provide a solution; wherein the esterification is continued until the acid value drops to between about 35 to about 45 and wherein the mole ratio of OH/COOH = 1.1 to 2.n

333025

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