| http://www.w3.org/ns/prov#value | - The most preferred amount of the tertiary amine is from 10 .mu.eq/g to 500 .mu.eq/g.To the composition prepared by adding the tertiary amine to the polymerization reaction solution as in the above manner, there is added appropriately one or more solvents such as the acetic acid esters or ketones used in the polymerization toadjust the concentration of the copolymer IIa.
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