IP Library Granted Patent US 10,851,328
Granted Patent B2
US 10,851,328 · App. 16/031,120 · Granted Dec 1, 2020

Ambient moisture-activated hard surface treatment powder

Inventors: Edward Fu (Hunt Valley, MD); Mark Wozniak (Hunt Valley, MD); Chris Bergstrom (Hunt Valley, MD)
Assignee: Sterilex, LLC
C11D3/3902C11D1/60C11D1/62C11D1/722C11D3/0047C11D3/10C11D3/2003C11D3/2065C11D3/30C11D3/33C11D3/361C11D3/3707C11D3/3942C11D3/40C11D7/12C11D7/14C11D11/0041C11D17/06
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Quick Facts
Patent No.
US 10,851,328
App. No.
16/031,120
Granted
Dec 1, 2020
Kind
B2
Abstract

Ambient moisture-activatable surface treatment powders containing persalt, positively charged phase transfer agent and alkaline pH buffering may be activatable without the addition of liquid. Some ambient moisture-activatable surface treatment powders are substantially free of bleach activators and/or chlorine. Methods of use of ambient moisture activatable powders include applying them to the surfaces to be treated.

Claims (21)

1. A method of treating a hard surface, the method comprising applying an ambient moisture-activated hard surface treatment powder to the hard surface, wherein the treatment powder comprises by weight percentage of the treatment powder:

(a) from about 5% to less than about 50% by weight of the hard surface treatment powder of persalt;

(b) quaternary ammonium salt; and

(c) an alkaline buffering agent

wherein:

1. the hard surface treatment powder comprises particles and over about 65% of the particles range in size of from about 125 microns to about 250 microns; and

2. the alkaline buffering agent comprises:

A. from about 5% to about 10% sodium carbonate by weight of the hard surface treatment powder; and

B. from about 20.5% to about 90% of sodium bicarbonate by weight percentage of the hard surface treatment powder.

2. The method of claim 1 , wherein the surface is in a food facility, in an animal health care facility, in a human health care facility, in a dairy, or on a farm.

3. The method of claim 1 , wherein the surface is in an environment in which a white powder other than the hard surface treatment powder is present.

4. The method of claim 3 , wherein the white powder is selected from the group of: flour, sugar, baking powder, baking soda and combinations thereof.

5. The method of claim 1 , wherein the surface to be treated is footwear, the method further comprising placing the ambient moisture-activated hard surface treatment powder in a foot pan.

6. The method of claim 5 , further comprising replacing the powder in the foot pan from about every four to about every 12 weeks.

7. The method of claim 1 , wherein the hard surface treatment powder is substantially free of bleach activator.

8. The method of claim 1 , wherein the hard surface treatment powder is substantially free of anionic surfactant.

9. The method of claim 1 , wherein the hard surface treatment powder comprises by weight percentage of the hard surface treatment powder from about 5% to about 40% of persalt.

10. The method of claim 1 , wherein the hard surface is in a setting characterized by dry conditions.

11. The method of claim 1 , wherein the hard surface is in a food processing facility.

12. The method of claim 1 , wherein the hard surface is a floor.

13. The method of claim 1 , further comprising increasing traction on the hard surface.

Assignments (7)
SECURITY INTEREST Recorded Sep 19, 2025
From: STERILEX LLC
To: ARES CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT
Reel/Frame 072309/0140 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2020
From: BERGSTROM, CHRIS
To: STERILEX CORPORATION
Reel/Frame 053745/0462 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2020
From: STERILEX CORPORATION
To: STERILEX, LLC
Reel/Frame 053746/0040 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2020
From: FU, EDWARD
To: STERILEX CORPORATION
Reel/Frame 053742/0902 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2020
From: WOZNIAK, MARK
To: STERILEX, LLC
Reel/Frame 053748/0488 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2020
From: BERGSTROM, CHRIS; FU, EDWARD
To: STERILEX, LLC
Reel/Frame 053748/0800 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2020
From: WOZNIAK, MARK
To: STERILEX, LLC
Reel/Frame 053747/0400 →
Continuity (3)
Continuation 15786839 · Oct 18, 2017
Provisional Application 62409497 · Oct 18, 2016
Related Publication 20190136158A1 · May 9, 2019