Water soluble insulating varnish

Claim 2

A process for forming a water-dispersible polyester capable of being solubilized to become water-soluble comprising reacting (1) with (2a) to form (I), wherein (1) is isophthalic acid, terephthalic acid, benzophenone dicarboxylic acid or mixtures thereof and wherein (2a) includes a polyol having at least three hydroxyl groups and a diol, wherein said polyol is trimethylol-propane, tris(hydroxymethyl)aminoethane, trimethylolethane, glycerine, pentaerythritol or tris(hydroxyethyl)isocyanurate and said diol is neopentyl glycol, 1,4-butylene glycol, dimethyl hydantoin, dipropylene glycol, ethylene glycol, diethylene glycol, propylene glycol, cyclohexane dimethanol, hydrogenated bisphenol A, hydroquinone di-(beta-hydroxyethyl) ether, the diether of propylene glycol and bisphenol A, or the diether of ethylene glycol and bisphenol A; wherein said triol is present in amounts up to 35 mole percent of all reactants used to form said polyester; wherein said polyol and said diol are heated together and then said component (1) is added thereto; and adding (II) which is (a) trimellitic anhydride; (b) an aliphatic dibasic acid which is adipic acid, succinic acid, azelaic acid, sebacic acid, dimerized fatty acids, maleic acid, fumaric acid or an anhydride of said acids or (c) a cycloaliphatic acid which is tetrahydrophthalic acid, hexahydrophthalic acid, 3,6-endomethylene, delta 4 -tetrahydrophthalic acid or an anhydride of said acid, which component (II) is 15 to 65 mole percent based on the total moles of (1) and (II), and wherein (1) comprises 35 to 85 mole percent of the total amount of (1) and (II); wherein the mixture of (1) and (2a) is heated until a portion of the mixture containing 100 percent solids is characterized by an acid number of at least about 10.

Claim 3

The process of claim 1, wherein said polyester further includes a mixture of a saturated or unsaturated fatty acid which is non-conjugated or conjugated linoleic acid, linolenic acid, oleic acid, palmitic acid, stearic acid, elaeostearic acid, lauric acid, myristic acid, pelargonic acid, isodecanoic acid or mixtures thereof in an amount ranging from 5 to 60 percent by weight of said polyester.

Claim 4

The process of claim 1, wherein said acid number ranges up to 20.

Claim 5

The process of claim 1, wherein said heating step is followed by cooling and then by addition of component (B).

Claim 6

The process of claim 4, wherein said addition is followed by heating.

Claim 7

The process of claim 5, wherein said heating step following addition is maintained until the reaction product, when diluted to 80 percent solids, attains an acid value of about 40.

Claim 8

A water-dispersible polyester capable of being solubilized to become water-soluble, comprising the reaction product of component (I) and component (II) wherein: (I) is the reaction product of (1) isophthalic acid, terephthalic acid; benzophenone dicarboxylic acid or mixtures thereof; and (2) 0 to 41 percent by weight, based on the total weight of reactants used to form said polyester, of a diol which is neopentyl glycol, 1,4-butylene glycol, dimethyl hydantoin, dipropylene glycol, ethylene glycol, diethylene glycol, propylene glycol, cyclohexane dimethanol, hydrogenated bisphenol A, hydroquinone di-(beta-hydroxyethyl) ether, the diether of propylene glycol and bisphenol A, or the diether of ethylene glycol and bisphenol A and 10 to 27 percent by weight based on the total weight of all reactants of a polyol having at least three hydroxyl groups which is trimethylol-propane, tris(hydroxymethyl)aminoethane, trimethylolethane, glycerine, pentaerythritol or tris(hydroxyethyl) isocyanurate; and (3) a saturated or unsaturated fatty acid which is non-conjugated or conjugated linoleic acid, linolenic acid, oleic acid, palmitic acid, stearic acid, elaeostearic acid, lauric acid, myristic acid, pelargonic acid, isodecanoic acid or mixtures thereof in an amount ranging from 5 to 60 percent by weight of said polyester, and wherein (II) is (a) trimellitic anhydride; or (b) or aliphatic dibasic acid which is adipic acid, succinic acid, azelaic acid, sebacic acid, dimerized fatty acids, maleic acid, fumaric acid or an anhydride of said acids or (c) a cycloaliphatic acid which is tetrahydrophthalic acid, hexahydrophthalic acid, 3,6-endomethylene, delta 4 -tetrahydrophthalic acid or an anhydride of said acid, which component (II) is 15 to 65 mole percent based on the total moles of (1) and (II), wherein (1) comprises 35 to 85 mole percent of the total amount of (1) and (II); wherein the OH:COOH ratio of said polyester ranges from 1:1 to 1.5:1.

Claim 9

A water-dispersible polyester capable of being solubilized to become water-soluble, comprising the reaction product of component (I) and component (II) wherein: (I) is the reaction product of (1) isophthalic acid, terephthalic acid; benzophenone dicarboxylic acid or mixtures thereof; and (2) 0 to 41 percent by weight, based on the total weight of reactants used to form said polyester, of a diol which is neopentyl glycol, 1,4-butylene glycol, dimethyl hydantoin, dipropylene glycol, ethylene glycol, diethylene glycol, propylene glycol, cyclohexane dimethanol, hydrogenated bisphenol A, hydroquinone di-(beta-hydroxyethyl) ether, the diether of propylene glycol and bisphenol A, or the diether of ethylene glycol and bisphenol A and 10 to 27 percent by weight based on the total weight of all reactants of a polyol having at least three hydroxyl groups which is trimethylol-propane, tris(hydroxymethyl)aminoethane, trimethylolethane, glycerine, pentaerythritol or tris(hydroxyethyl) isocyanurate; and (3) a saturated or unsaturated fatty acid which is non-conjugated or conjugated linoleic acid, linolenic acid, oleic acid, palmitic acid, stearic acid, elaeostearic acid, lauric acid, myristic acid, pelargonic acid, isodecanoic acid or mixtures thereof in an amount ranging from 5 to 60 percent by weight of said polyester, and wherein (II) is (a) trimellitic anhydride; or (b) or aliphatic dibasic acid which is adipic acid, succinic acid, azelaic acid, sebacic acid, dimerized fatty acids, maleic acid, fumaric acid or an anhydride of said acids or (c) a cycloaliphatic acid which is tetrahydrophthalic acid, hexahydrophthalic acid, 3,6-endomethylene, delta 4 -tetrahydrophthalic acid or an anhydride of said acid, which component (II) is 15 to 65 mole percent based on the total moles of (1) and (II), wherein (1) comprises 35 to 85 mole percent of the total amount of (1) and (II); wherein the OH:COOH ratio of said polyester ranges from 1:1 to 1.5:1.

Claim 10

The polyester of claim 7, wherein said OH:COOH ratio is 1:1 to 1.3:1.

Claim 11

The polyester of claim 7, dispersed in water.

Claim 12

The polyester of claim 7, including both a polyol having at least three hydroxyl groups and a diol.

Claim 13

The polyester of claim 10, wherein said polyol is trimethylol propane and said diol is dipropylene glycol.

Claim 14

The polyester of claim 10, wherein said polyester includes isophthalic acid and trimellitic anhydride.

Claim 15

The polyester of claim 7, wherein said diol is neopentyl glycol.

Claim 16

The polyester of claim 13, wherein said polyol is trimethylol-propane.

Claim 17

The polyester of claim 14, wherein said element (1) is isophthalic acid.

Claim 18

The polyester of claim 15, which includes adipic acid.

Claim 19

The polyester of claim 7, wherein the diol is dipropylene glycol, diethylene glycol or neopentyl glycol.

Claim 20

The polyester of claim 7, wherein the polyol is trimethylolpropane, trimethylolethane, glycerine or tris(hydroxyethyl)isocyanurate.

Claim 21

The polyester of claim 7, wherein (B) is maleic anhydride, or adipic acid.

Claim 22

The polyester of claim 7, wherein (B) is maleic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, 3,6-endomethylene, Δ 4 -tetrahydrophthalic anhydride or trimellitic anhydride.

Claim 23

The polyester of claim 7, which is water-soluble.

Claim 24

The reaction product formed by reacting the polyester of claim 7 with an amino triazine-aldehyde reaction product.

Claim 25

The product of claim 22, wherein said triazine is hexamethoxymethyl melamine.

Claim 26

A water-dispersible polyester capable of being solubilized to become water-soluble comprising 2.8 moles of tall oil fatty acids, 3.8 moles of trimethylol propane, 0.4 mole of dipropylene glycol, 3.2 moles of isophthalic acid and 0.9 mole of trimellitic anhydride.

Claim 27

A water-dispersible polyester capable of being solubilized to become water-soluble comprising 2.8 moles of tall oil fatty acids, 3.8 moles of trimethylol propane, 0.4 mole of dipropylene glycol, 3.2 moles of isophthalic acid and 0.9 mole of trimellitic anhydride.

Claim 28

The product produced by the process of claim 1, admixed with water.

Claim 29

A pigmented enamel comprising the product of claim 25.

Claim 30

The product produced by the process of claim 3, admixed with water.