prov:value
| - as described by Flett in U.S. Pat. No. 2,390,295, and Rubinfeld in U.S. Pat. No. 3,320,174, or wherein the alkyl group is a straight chain and the benzene nucleus is randomly positioned along the alkyl chain, as described in Baumgartner U.S. Pat. Nos. 2,723,240 and 2,712,530 and in U.S. Pat. No. 2,972,583, or wherein the alkyl group is a hexene dimer or trimer as in McEwan U.S. Pat. No. 3,370,100
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