| http://www.w3.org/ns/prov#value | - wherein a is an integer such that the hydrophobe represented by (C3 H6 O)a has a molecular weight of at least 1750 Daltons and b is an integer such that the hydrophile portion represented by (C2 H4 O)b constitutes from about 50 to 90 percent by weight of the copolymer.
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