IP Library › Patent Application 13313644
Patent Application
App. No. 13/313,644

COPOLYMERIZATION OF PROPYLENE OXIDE AND CARBON DIOXIDE AND HOMOPOLYMERIZATION OF PROPYLENE OXIDE

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Quick Facts
Patent No.
US None
App. No.
13/313,644
Abstract

Copolymers of propylene oxide and carbon dioxide and homopolymers of propylene oxide are made using two dimensional double metal cyanide complexes having the formula Co[M(CN) 4 ] or hydrated or partially dehydrated form thereof. There is no propylene carbonate by product in the copolymerization.

Claims (6)

1 - 11 . (canceled)

12 . A method of preparing Co[M(CN) 4 ] comprising reacting Co(SO 4 ) and K 2 [M(CN) 4 ] to form hydrated Co[M(CN) 4 ] to produce anhydrous Co[M(CN) 4 ] where M is selected from the group consisting of Ni, Pt and Pd.

13 . A method of preparing anhydrous Co[Ni(CN) 4 ] comprising the step of dehydrating microcrystalline Co(H 2 O) 2 [Ni(CN) 4 ].4H 2 O.

14 . Co[Pt(CN) 4 ].

15 . Co[Pd(CN) 4 ].

16 - 17 . (canceled)

Assignments (1)
CONFIRMATORY LICENSE Recorded May 24, 2012
From: CORNELL UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 028274/0652 →