Copolymers of tetrahydrofuran, ethylene oxide and an additional cyclic ether
AssigneeInvista North America S.A.R.L.
InventorsGerfried Pruckmayr, Charles Francis Palmer JR., Gary Arthur Lodoen
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Abstract
A copolymer with recurring constituent units derived by polymerizing tetrahydrofuran, ethylene oxide and at least one additional cyclic ether that can be substituted or unsubstituted that decreases the hydrophilicity imparted to the copolymer by the ethylene oxide.
Claims13
A copolymer comprising constituent units derived by polymerizing tetrahydrofuran, ethylene oxide and at least one additional cyclic ether.
A polyurethane polymer comprising the reaction product of at least one organic polyisocyanate compound and a copolymer glycol comprising constituent units derived by copolymerizing ethylene oxide, tetrahydrofuran and at least one additional cyclic ether.
Dependencies are inferred from the claim text.