Aqueous emulsions of high softening point hydrocarbon resins and process for preparing the same
AssigneeExxon Research & Engineering Co.
InventorsFrank C. Jagisch, Morris L. Evans
Life of this patent
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Abstract
An aqueous petroleum resin emulsion is realized by the slow addition of part of the water with vigorous agitation to a resin blended with up to 10 weight percent resinplast and in the presence from 3 to 10 weight percent of an emulsifier until inversion and thereafter adding the balance of the water at low agitation and thereafter cooling said emulsion to a temperature at least about 20.degree. C. below the softening point of the mixture of emulsifier, resin and resinplast prior to terminating agitation.
Claims5
An aqueous emulsion of a hydrocarbon resin, said resin having a ring and ball softening point of at least 90.degree. C., consisting essentially of:
- from 3 to 10 parts by weight of an emulsifier of the class consisting of a nonionic polyoxyethylene alkyl aryl ether, an anionic alkyl aryl sulfonate and mixtures thereof with a mixture of 3 to 10 parts by weight of a resinplast and from 80 to 97 parts by weight of said hydrocarbon resin, said parts by weight being based on the combined weight of said emulsifier, said resinplast and said resin;
- and, the finished emulsion being 30 to 75 weight % water.
Dependencies are inferred from the claim text.