Deicing compositions and methods of use

• US 20060022171A1
• Filed: 01/21/2005
• Published: 02/02/2006
• Est. Priority Date: 03/06/2003
• Status: Abandoned Application

• Current Assignee: E. G. Leist
• Original Assignee: E. G. Leist
• Inventors: Leist, E. G.
• Application Number:
  US11/040,719
• Publication Number:
  US 20060022171A1
• Time in Patent Office: Days
• US Class Current: 252/387
• CPC Class Codes: C09K 3/185 Thawing materials

Abstract

The invention provides a non-corrosive deicing composition containing a deicing component, a corrosion inhibitor and a protein solution having a pH adjusted to between about pH 5 and about pH 7. Optionally, the deicing composition contains a corrosion inhibitor as well. The invention also provides a method of removing snow and ice from a road surface by applying these deicing compositions to the ice or snow.

Claims

1. A corrosion inhibiting composition, comprising triethanolamine and protein solution having a pH adjusted to between about pH 5 and about pH 7.

2. The corrosion inhibiting composition of claim 1, wherein the composition comprises between about 30% and about 60% triethanolamine.

3. The corrosion inhibiting composition of claim 1, wherein the composition comprises between about 1% and about 15% protein.

4. The corrosion inhibiting composition of claim 1, wherein the protein solution has been at least partially digested.

5. The corrosion inhibiting composition of claim 1, wherein the protein is derived from a source selected from the group consisting of pork hides, pork hooves, beef hides, beef hooves, grain protein and forage protein.

6. The corrosion inhibiting composition of claim 1, wherein the protein solution has a pH adjusted to about pH 6.

7. The corrosion inhibiting composition of claim 1, wherein the protein solution is prepared by mixing a solid protein material with water and heating the mixture to a temperature of between about 40°

C. and about 82°

C. prior to adjusting the pH.

8. The corrosion inhibiting composition of claim 1, wherein the protein has been digested with a proteolytic enzyme selected from the group consisting of trypsin and chymotrypsin