| http://www.w3.org/ns/prov#value | - C. is morepreferably 7 mass % or greater, especially preferably 10 mass % or greater. (In this specification, mass ratio is equal to weight ratio.)The polymer of the invention may be used alone or two or more polymers may be used in combination.The film forming composition of the invention contains the above-described polymer, or the above-described compound having a cage structure with at least 1
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