Aqueous emulsions of high softening point hydrocarbon resins and process for preparing the same
AssigneeExxon Research & Engineering Co.
InventorMorris L. Evans
Life of this patent
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Abstract
A resin aqueous emulsion of a petroleum resin blend having a softening point of less than 85.degree. C. of a resin having a high softening point of at least 90.degree. C. and a resin having a low softening point is realized by utilizing from 3 to 10 parts by weight of an emulsifier consisting essentially of the class nonyl phenol alkoxylated with 10-12 moles of ethylene oxide per mole of nonyl phenol, anionic alkyl aryl sulfonate and mixtures thereof and dispersing a portion of the water as hot water in said blend prior to inversion into said emulsion.
Claims4
A blend suitable for providing an aqueous emulsion of a petroleum 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 of nonyl phenol alkoxylated with 10-12 moles of ethylene oxide per mole of nonyl phenol, anionic alkyl aryl sulfonate and mixtures thereof blended with a mixture of from 90 to 97 parts by weight of a blend of petroleum resins including a proportion of a petroleum resin having a softening point of at least 90.degree. C., said blend having a ring and ball softening point of less than 85.degree. C.
An aqueous emulsion of a petroleum 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 of nonyl phenol alkyoxylated with 10-12 moles of ethylene oxide per mole of nonyl phenol, anionic alkyl aryl sulfonate and mixtures thereof and from 90 to 97 parts by weight of a blend of petroleum resins containing said petroleum resin and having a softening point of less than 85.degree. C. and the balance being water.
Dependencies are inferred from the claim text.