Production of hydrocarbon resins and products resulting therefrom
AssigneeExxon Research & Engineering Co.
InventorVincent L. Hughes
Life of this patent
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Abstract
Hydrocarbon resins having an increased softening point are obtained by a process featuring the sequential steps of: isomerizing the 2-methylbutene-1 component of a branched olefin modifier stream whereby its 2-methylbutene-2 content is enriched; polymerizing a feedstock consisting of the mixture of said enriched modifier stream and a piperylene rich feed stream; and, recovering said hydrocarbon resin with properties enhancing its utility for adhesive applications.
Claims3
A hydrocarbon resin comprising from 40 to 50 weight percent units derived from piperylene, 15 to 20 weight percent units derived from 2-methylbutenes and the balance derived from other olefinic compounds having from 5 to 6 carbons, said 2-methylbutenes consisting essentially as the 2-methylbutene-2 isomer and the 2-methylbutene-1 isomer in a weight ratio of the former isomer to the latter isomer being greater than 10 whereby said resin has a softening point of at least 90.degree. C.
Dependencies are inferred from the claim text.