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Home › Polyester and polyester carbonate based on 3,8-dihydroxy-5a, 10b-diphenylcoumarano-2',3',2,3-coumarane

Polyester and polyester carbonate based on 3,8-dihydroxy-5a, 10b-diphenylcoumarano-2',3',2,3-coumarane

US Patent 5134220 · Granted Jul 28, 1992

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