George E Lauterbach

US Patent:

49526863, Aug 28, 1990

Filed:

Dec 1, 1987

Appl. No.:

7/127347

Inventors:

Donald W. Renn - Glen Cove ME
George E. Lauterbach - Thomaston ME
Peter Hemmingsen - Hvidovre, DK

Assignee:

FMC Corporation - Philadelphia PA

International Classification:

C07G 17001
C08B 3700

US Classification:

536114

Abstract:

A process and composition is provided for a hydratable, alloy gum composition of Cassia gum and another gelling and thickening agent which composition is capable of forming a clear, stable colloidal solution. The compositions are usually more easily dispersed in an aqueous solution than either component alone. An alloy gum composition of Cassia gum and xanthan gum is particularly useful for absorbing an aqueous medium.

US Patent:

46981721, Oct 6, 1987

Filed:

Aug 4, 1986

Appl. No.:

6/892980

Inventors:

Richard J. Tye - Wiscasset ME
George E. Lauterbach - Thomaston ME
Philip R. Standel - Lamoine ME

Assignee:

FMC Corporation - Philadelphia PA

International Classification:

C09K 318

US Classification:

252 70

Abstract:

An anti-icing fluid suitable for ground treatment of aircraft, being a glycol-based solution containing a gel-forming carrageenan, in an amount of less than 5 wt %. The carrageenan is present in the glycol-based solution in an amount sufficient to thicken the fluid to promote its adherence to aircraft surfaces when applied to a stationary aircraft. Use of this thickened deicing fluid does not adversely affect airfoil lift characteristics during takeoff, because the fluid exhibits shear thinning and readily flows off the aircraft surfaces when exposed to wind shear during the aircraft's takeoff run.