Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2007-04-17
2007-04-17
Page, Thurman K. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
Reexamination Certificate
active
10761591
ABSTRACT:
A method of manufacturing a phenol product having a reduced concentration of a contaminating reaction by-product. The method includes contacting a phenol stream, having a concentration of the contaminating by-product, by contacting the phenol stream with an acidic catalyst under suitable purification reaction conditions. Also included is a composition comprising a sec-butyl benzene derived phenol product that has been purified by the removal of certain undesirable reaction by-products.
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Gale Kellette
Page Thurman K.
Shell Oil Company
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