| http://www.w3.org/ns/prov#value | - ryl and C.sub.7-24 arylalkyl; two substituents R in the ortho position to one another are attached to form anaromatic or heterocyclic ring containing N, O or S as heteroatoms, andQ represents a single bond or groups with two bonds, Ar represents a C.sub.6-24 aromatic radical with two bonds and p is an integer of 1 to 24,x is the number 1, 2, 3 or 4,o is the number 1, 2 or 3, andb) 0.5 to 25 mol-%
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