Copolymers of tetrahydrofuran, ethylene oxide and an...

Details Copolymers of tetrahydrofuran, ethylene oxide and an... Copolymers of tetrahydrofuran, ethylene oxide and an...

2006-01-24

2006-01-24

Sergent, Rabon (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From heterocyclic reactant containing as ring atoms oxygen,...

C568S614000, C568S615000, C568S617000

Reexamination Certificate

active

06989432

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.

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patent: WO 97/21756 (1997-06-01), None
P. Dreyfuss, Copolymerization, Poly(Tetrahydrofuran), 1982, pp. 62-69, 8, Gordon and Breach Science Publishers.

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