Process for waste encapsulation
AssigneeThe Dow Chemical Company
InventorsKeith Roberson, Harold E. Filter
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Abstract
An improvement in the process of encapsulating waste materials in aqueous liquid or finely divided, dry solid form, in liquid thermosettable resins of the group consisting of vinyl ester resins, unsaturated polyester resins, and mixtures thereof, which comprises increasing the amount of waste material incorporated in a given amount of resin by adding thereto a water-soluble polymeric substance containing a carbon chain having a plurality of --COOH groups or derivatives thereof.
Claims13
In the process of encapsulating dry solids and aqueous wastes in liquid thermosettable resins of the group consisting of vinyl ester resins, unsaturated polyester resins and mixtures thereof, wherein the waste is dispersed in the resin, the improvement which comprises incorporating in the waste-resin dispersion a water-soluble copolymer of a 1-olefin containing 4 to 16 carbon atoms and a compound selected from the group consisting of ##STR3## where each R is individually selected from the group consisting of hydrogen, methyl and ethyl and X is individually selected from the group consisting of hydrogen, methyl, ethyl, propyl, butyl, ammonium and an alkali metal, said copolymer being present in an amount sufficient to increase the amount of waste encapsulated in a given amount of resin.
In the process of encapsulating aqueous liquid wastes in liquid thermosettable resins of the group consisting of vinyl ester resins, unsaturated polyester resins and mixtures thereof, wherein the liquid waste is dispersed in the resin, the improvement which comprises incorporating in the waste-resin dispersion a water-soluble copolymer of a 1-olefin containing 4 to 16 carbon atoms and an anhydride having the formula ##STR5## wherein each R is individually selected from the group consisting of hydrogen, methyl and ethyl, said copolymer having a molecular weight of from about 500 to 10,000, and is present in an amount sufficient to increase the amount of waste encapsulated in a given amount of resin.
Dependencies are inferred from the claim text.