Polyalkylated arylalkyl sulfonic acids and their salts

Details Polyalkylated arylalkyl sulfonic acids and their salts Polyalkylated arylalkyl sulfonic acids and their salts

2007-08-24

2009-10-20

O'Sullivan, Peter G (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonic acids or salts thereof

Reexamination Certificate

active

07605287

ABSTRACT:
The present invention discloses a process for producing polyalkylated arylalkyl sulfonic acids by reacting arylalkyl sulfonic acids with olefins. The polyalkylated arylalkyl sulfonic acids may be further neutralized with alkalis or amines to form the corresponding sulfonated salts. The present invention also makes possible manufacture of polyalkylated arylalkyl sulfonic acids as first intent products using an inexpensive and simple reaction. The structure of the polyalkylated arylalkyl sulfonic acids produced using the process described in the present invention is shown below:WhereR1, R2and R3are each separately and independently H, alkyl (branched or linear C1 to C30), (—CH2CH2O)a, (—CH(CH3)CH2O)b, or (—CH2CH2O)c(—CH2(CH3)CH2O)d,m+n=8 to 28R4=CH2CH3, CH2CH3Y or Y(CH2)pCH(CH2)qYp+q=0 to 27a=1 to 30b=1 to 30c+d=2 to 30Y=CH3, COOH, CH2OH, CH2(—CH2CH2O)a, CH2(—CH(CH3)CH2O)b, CH2(—CH2CH2O)c(—CH2(CH3)CH2O)d, aromatic, or substituted aromatic.

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