Chemical treatment of arylene sulfide polymers
AssigneePhillips Petroleum Company
InventorsDonnie G. Brady, Jennings P. Blackwell
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Abstract
The properties of arylene sulfide polymers are improved by treating the polymer with a fluid treating agent selected from the group consisting of hydrogen peroxide, an alkali metal or alkaline earth metal hypochlorite, sulfuric acid, chlorine, sulfuryl chloride, nitrogen dioxide, chromium trioxide, alkali metal permanganates and nitric acid under conditions of concentration of treating agent, time and temperature to effect the desired improvement.
Claims8
A process for improving the physical and chemical properties of an arylene sulfide polymer which comprises treating said polymer in particulate form with a fluid treating agent selected from the group consisting of hydrogen peroxide, an alkali metal or alkaline earth metal hypochlorite and chlorine under conditions of concentration of treating agent, time and temperature to effect the desired improvement, and thereafter separating said treating agent and said polymer and recovering the treated polymer.
Dependencies are inferred from the claim text.