Water dissipatable polyesters
AssigneeEastman Kodak Company
InventorGeorge J. O'Neill
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 of which at least 85 mole percent is a polyoxyethylene glycol, and a disulfonamido compound. 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, textile sizes and the like.
Claims17
A linear, water-dissipatable polyester of
- (1) at least one dicarboxylic acid,
- (2) at least one glycol, at least 85 mole percent of which is a polyoxyethylene glycol having a molecular weight of about 100 to about 1000, and
- (3) from 8 to 20 mole percent of a disulfonamido compound having the structural formula:
- ##STR9## wherein (a) R is selected from the group consisting of --H, an alkali metal, a divalent metal, and a nitrogen based cation,
- (b) X and Y are the same or different radicals selected from the group consisting of divalent and trivalent arylene radicals of 6 to 12 carbons and divalent and trivalent alkarylene radicals of 7 to about 18 carbons, said radicals being unsubstituted or substituted with chlorine atoms, and
- (c) A, B, C and D are the same or different and are selected from the group consisting of ##STR10## wherein R" is selected from the group consisting of --H, alkyl of from 1 to about 8 carbons and aryl of from 6 to about 14 carbons, R.sub.1 is alkyl of from 1 to about 8 carbons, and either two or three of A, B, C and D are --H,
- said polyester having an intrinsic viscosity of at least 0.1 as measured in a 60/40 mixture of phenol-tetrachloroethane.
A linear, water dissipatable polyester of
- (1) at least one dicarboxylic acid,
- (2) at least one glycol, at least 85 mole percent of which is a polyoxyethylene glycol having a molecular weight of about 100 to about 1000, and
- (3) from 8 to 20 mole percent of an organic compound having the structural formula:
- ##STR11## said polyester having an intrinsic viscosity of at least 0.1 as measured in a 60/40 mixture of phenol-tetrachloroethane.
A linear, water dissipatable polyester of
- (1) at least one dicarboxylic acid,
- (2) at least one glycol, at least 85 mole percent of which is a polyoxyethylene glycol having a molecular weight of about 100 to about 1000, and
- (3) from 8 to 20 mole percent of an organic compound having the structural formula ##STR12## said polyester having an intrinsic viscosity of at least 0.1 as measured in a 60/40 mixture of phenol-tetrachloroethane.
The method for preparing a linear, water-dissipatable polyester containing a disulfonamido compound of the structural formula ##STR13## wherein (a) R is selected from the group consisting of --H, an alkali metal, a divalent metal, and a nitrogen based cation.
- (b) X and Y are the same or different radicals selected from the group consisting of divalent and trivalent arylene radicals of 6 to 12 carbons and divalent and trivalent alkarylene radicals of 7 to about 18 carbons, said radicals being unsubstituted and substituted with chlorine atoms, and
- (c) A, B, C and D are the same or different and are selected from the group consisting of ##STR14## wherein R" is selected from the group consisting of --H, alkyl of from 1 to about 8 and aryl of from 6 to about 14 carbons, R.sub.1 is alkyl of from 1 to about 8 carbons, and either two or three of A, B, C and D are --H,
- which comprises forming said polyester containing a disulfonamido compound of the structural formula ##STR15## wherein (a) R is an alkali metal and X, Y, A, B, C and D are the same as described above, and
- subsequently replacing said alkali metal cation with a nitrogen based cation by subjecting said disulfonamido compound to the action of an ion exchange resin, molecular filtration or ultrafiltration.
Dependencies are inferred from the claim text.