Water dissipatable polyesters
AssigneeEastman Kodak Company
InventorsGeorge J. O'Neill, Stephen N. Belote
Life of this patent
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Abstract
Disclosed are linear, water-dissipatable polyesters and polyesteramides derived from at least one dicarboxylic acid, at least one glycol, and at least one polycarboxylic acid or polyhydric alcohol which contains a sulfonic acid salt moiety derived from a nitrogen-containing base having an ionization constant in water at 25.degree. C. of 10.sup.-3 to 10.sup.-10. The polyesters may also contain an unsaturated acid and a difunctional hydroxycarboxylic acid, an aminocarboxylic acid or a diamine. Such polymers are especially useful as adhesives, coatings, films and the like.
Claims22
A linear, water-dissipatable polyester of
- (a) at least one dicarboxylic acid,
- (b) at least one glycol,
- (c) an amount sufficient to provide said water-dissipatible characteristic of said polymer of at least one polycarboxylic acid or polyhydric alcohol which contains a sulfonic acid salt moiety derived from a nitrogen-containing base having an ionization constant in water at 25.degree. C. of 10.sup.-3 to 10.sup.-10,
- said polyester having an I.V. of at least 0.1 as measured in a 60/40 mixture of phenol-tetrachloroethane.
A linear, water-dissipatable polyester of
- (a) at least one dicarboxylic acid and at least one .alpha.,.beta. unsaturated acid,
- (b) at least one glycol,
- (c) an amount sufficient to provide said water-dissipatible characteristic of said polymer of at least one polycarboxylic acid or polyhydric alcohol which contains a sulfonic acid salt moiety derived from a nitrogen-containing base having an ionization constant in water at 25.degree. C. of 10.sup.-3 to 10.sup.-10, and
- (d) from 0.1 to about 80 mole percent of at least one difunctional compound selected from a hydroxycarboxylic acid having one --CH.sub.2 OH group, an aminocarboxylic acid having one --NRH group, an amino-alcohol having one CR.sub.2 --CH group and one --NRH group, as diamine having two --NRH groups, wherein R is H or a 1-4 carbon alkyl group,
- said polyester having an I.V. of at least 0.1 as measured in a 60/40 mixture of phenol-tetrachloroethane.
Dependencies are inferred from the claim text.