IP Library Granted Patent US 8,408,323
Granted Patent B2
US 8,408,323 · App. 13/471,493 · Granted Apr 2, 2013

Biodegradable suspension forming compositions

Inventors: James Alroy E. Hagquist (St. Paul, MN); Robert M. Hume, III (Woodbury, MN); Terrance L. Lund (Woodbury, MN); Roderick I. Lund (Woodbury, MN)
Assignee: EarthClean Corporation
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Quick Facts
Patent No.
US 8,408,323
App. No.
13/471,493
Granted
Apr 2, 2013
Kind
B2
Abstract

A fire suppression composition includes starch, a pseudo-plastic, high yield, suspending agent, paraffin or olefin, and a neutralizer.

Claims (22)

1. A method comprising;

combining a powdered composition with water to form a suspension composition, the suspension composition comprises from about 95 to 99.5% wt water, the powdered composition comprises:

35-65 wt % starch

25-55 wt % pseudo-plastic, high yield, suspending agent;

0.1-10 wt % paraffin or olefin; and

0.5-15 wt % neutralizer.

2. A method according to claim 1 wherein the paraffin comprises C 10 to C 15 linear alkanes.

3. A method according to claim 1 wherein the olefin comprises a C 15 to C 18 linear alkene.

4. A method according to claim 1 further comprising directing the suspension composition toward a surface and the suspension composition clings to the surface positioned in any orientation, and can form an exterior intumescent char coating upon fire contact.

5. A method according to claim 1 wherein the neutralizer comprises caustic soda.

6. A method according to claim 1 wherein pseudo-plastic, high yield, suspending agent comprises a mixture of an acrylic acid copolymer cross linked with a polyalkenyl polyether.

7. A method according to claim 1 wherein the powdered composition comprises:

40-60 wt % starch;

30-50 wt % pseudo-plastic, high yield, suspending agent;

1-5 wt % paraffin; and

0.5-10 wt % neutralizer comprising basic material.

8. A method according to claim 1 wherein the powdered composition comprises:

40-60 wt % starch;

30-50 wt % pseudo-plastic, high yield, suspending agent;

1-5 wt % olefin; and

0.5-10 wt % neutralizer comprising basic material.

9. A method according to claim 1 further comprising directing the suspension composition toward a fire.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 27, 2019
From: BULK IP, LLC
To: EARTHCLEAN LLC
Reel/Frame 048709/0471 →
Continuity (3)
Continuation 12890761 · Sep 27, 2010
Provisional Application 61247215 · Sep 30, 2009
Related Publication 20120222872A1 · Sep 6, 2012