Oligomers of styrene as flegmatizers for organic peroxides
AssigneeThe Dow Chemical Company
InventorsDuane B. Priddy, Mehmet Demirors
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Abstract
A flegmatizer, which is an oligomer of styrene or of styrene and at least one comonomer, is admixed with an organic peroxide to reduce the heat- and/or shock-sensitivity of the peroxide. The resulting composition can be employed to polymerize olefinic monomers.
Claims20
A storage stable organic peroxide composition having reduced heat-and/or shock-sensitivity, the composition comprising an organic peroxide and from about 10 to about 90 percent, based on the total weight of the flegmatizer and the peroxide, of a flegmatizer comprising an oligomer of styrene or an oligomer of styrene and at least one comonomer, the oligomer having from 2 to about 5 repeating units.
A method for reducing the heat- and/or shock-sensitivity of an organic peroxide, the method comprising admixing an organic peroxide with from about 10 to about 90 percent, based on the total weight of the flegmatizer and the peroxide, of a flegmatizer comprising an oligomer of styrene or an oligomer of styrene and at least one comonomer, the oligomer having from 2 to about 5 repeating units.
An organic peroxide composition having reduced heat- and/or shock sensitivity, the composition consisting essentially of an organic peroxide and from about 25 to about 75 percent, based on the total weight of the flegmatizer and the peroxide, of a flegmatizer which is an oligomer of styrene or an oligomer of styrene and at least one comonomer, the oligomer having from 2 to about 5 repeating units.
Dependencies are inferred from the claim text.