Sequestering agents and compositions produced therefrom

Composition comprising an aqueous dissipation of a linear, water-dissipatable polymer having carbonyloxy linking groups in the linear molecular structure wherein up to 80% of the linking groups may be carbonylamido linking groups, the polymer having an inherent viscosity of at least about 0.1 measured in a 60/40 parts by weight solution of phenol/tetrachloroethane 25.degree. C. and at a concentration of about 0.25 gram of polymer in 100 ml. of the solvent, the polymer containing substantially equimolar proportions of acid equivalents (100 mole percent), the polymer comprising the reaction products of (a), (b), (c) and (d) from the following components or ester forming or esteramide forming derivatives thereof;

• (a) at least one difunctional dicarboxylic acid;
• (b) from about 4 to about 25 mole percent, based on a total of all acid, hydroxyl and amino equivalents being equal to 200 mole percent, of at least one difunctional sulfo-monomer containing at least one metal sulfonate group attached to an aromatic nucleus wherein the functional groups are hydroxy, carboxyl or amino;
• (c) at least one difunctional reactants selected from a glycol or a mixture of a glycol and diamine having two --NRH groups, the glycol containing two --CH.sub.2 --OR groups of which at least 15 mole percent based on the total mole percent of hydroxy or hydroxy and amino equivalents, is a poly(ethylene glycol) having the structural formula:
• H--(--OCH.sub.2 CH.sub.2 --)--.sub.n OH
• n being an integer of between 2 and about 500;
• and
• (d) from none to at least one difunctional reactant selected from a hydroxy-carboxylic acid having one --CR.sub.2 --OH, an aminocarboxylic acid having one --NRH group, an amino-alcohol having one
• --CR.sub.2 OH
• group and one --NRH or mixtures thereof, wherein each R is an H atom or an alkyl group of 1 to 4 carbon atoms.
• said composition further comprising a water insoluble, hydrophobic deformable organic substance sequestered therein which is not reactive with said polyester or polyesteramide, said organic substance being nonmiscible with water.

Composition comprising an aqueous dissipation of a linear, water-dissipatable polymer having carbonyloxy linking groups in the linear molecular structure wherein up to 80% of the linking groups may be carbonylamido linking groups, the polymer having an inherent viscosity of at least about 0.1 measured in a 60/40 parts by weight solution of phenol/tetrachloroethane 25.degree. C. and at a concentration of about 0.25 gram of polymer in 100 ml. of the solvent, the polymer containing substantially equimolar proportions of acid equivalents (100 mole percent), the polymer comprising the reaction products of (a), (b), (c) and (d) from the following components or ester forming or esteramide forming derivatives thereof;

• (a) at least one difunctional dicarboxylic acid;
• (b) from about 4 to about 25 mole percent, based on a total of all acid, hydroxyl and amino equivalents being equal to 200 mole percent, of at least one difunctional sulfo-monomer containing at least one metal sulfonate group attached to an aromatic nucleus wherein the functional groups are hydroxy, carboxyl or amino;
• (c) at least one difunctional reactants selected from a glycol or a mixture of a glycol and diamine having two --NRH groups, the glycol containing two --CH.sub.2 --OR groups of which 0.1 to about 15 mole percent based on the total mole percent of hydroxy or hydroxy and amino equivalents, is a poly(ethylene glycol) having the structural formula:
• H--(--OCH.sub.2 CH.sub.2 --)--.sub.n OH
• n being an integer of between 2 and about 500;
• and with the proviso that the mole % of said poly(ethylene glycol) within said range is inversely proportional to the quantity of n within said range.
• (d) from none to at least one difunctional reactant selected from a hydroxy-carboxylic acid having one --CR.sub.2 --OH, an aminocarboxylic acid having one --NRH group, an amino-alcohol having one
• --CR.sub.2 OH
• group and one --NRH or mixtures thereof, wherein each R is an H atom or an alkyl group of 1 to 4 carbon atoms,
• said composition further comprising a water insoluble, hydrophobic deformable organic substance sequestered therein which is not reactive with said polyester or polyesteramide, said organic substance being nonmiscible with water.

The method of sequestering a deformable organic substance in water, said substance being insoluble and nonmiscible in water, which comprises mixing with shearing agitation a liquid or semi-solid organic substance with an aqueous solution of a polyester or polyesteramide having an inherent viscosity of at least 0.1 and having the following component:

• (a) at least one difunctional dicarboxylic acid;
• (b) from about 4 to about 25 mole percent, based on a total of all acid, hydroxyl and amino equivalents being equal to 200 mole percent, of at least one difunctional sulfo-monomer containing at least one metal sulfonate group attached to an aromatic nucleus wherein the functional groups are hydroxy, carboxyl or amino;
• (c) at least one difunctional reactants selected from a glycol or a mixture of a glycol and diamine having two --NRH groups, the glycol containing two --CH.sub.2 --OR groups of which at least 0.1 mole percent based on the total mole percent of hydroxy or hydroxy and amino equivalents, is a poly(ethylene glycol) having the structural formula:
• H--(--OCH.sub.2 CH.sub.2 --)--.sub.n OH
• n being an integer of between 2 and about 500;
• and
• (d) from none to at least one difunctional reactant selected from a hydroxy-carboxylic acid having one --CR.sub.2 --OH, an aminocarboxylic acid having one --NRH group, an amino-alcohol having one
• --CR.sub.2 OH
• group and one --NRH or mixtures thereof, wherein each R is an H atom or an alkyl group of 1 to 4 carbon atoms.