Compositions of polyarylalkane oligomers and process for their manufacture
AssigneeAtochem
InventorsRaymond Commandeur, Bernard Gurtner
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Abstract
Polyarylalkane oligomer compositions comprising a mixture of two oligomers A and B, wherein oligomer A is a mixture of isomers of formula: ##STR1## with n1 and n2=0, 1 and 2, given that n1+n2.ltoreq.3; and oligomer B is a mixture of isomers of formula: ##STR2## with n'1, n"1 and n4=0, 1 and 2, n'2, n"2, n3, n'3 and n5=0 and 1, given that n'1+n"1+n'2+n"2+n3+n'3+n4+n5.ltoreq.2. The invention also comprises the process for the preparation of said oligomer compositions by the action of a halide or inorganic acid on a product of free-radical chlorination of toluene.
Claims8
Polyarylalkane oligomer compositions comprising a mixture of two oligomers A and B, wherein oligomer A is a mixture of isomers of formula:
- ##STR7## with n1 and n2=0, 1 and 2, given that n1+n2.ltoreq.3;
- and oligomer B is a mixture of isomers of formula:
- ##STR8## with n'1, n"1 and n4=0, 1 and 2, n'2, n"2, n3, n'3 and n5=0 and 1, given that n'1+n"1+n'2+n"2+n3+n'3+n4+n5.ltoreq.2.
The process for the manufacture of compositions of polyarylalkane oligomers comprising, in a first stage, reacting chlorine with toluene by free-radical reaction in the presence of a free-radical generator and, in a second stage, subjecting the reaction product from said first stage to the action of an inorganic halide or inorganic acid for a time and at a temperature sufficient to form said oligomers.
Dependencies are inferred from the claim text.