IP Library Granted Patent US 10,704,012
Granted Patent B2
US 10,704,012 · App. 16/005,740 · Granted Jul 7, 2020

Cleaning composition, method of making and use thereof

Inventors: Walter Hawkins (Delafield, WI); Sharon W. Reynolds (Brentwood, TN); James W. Lillard, Jr. (Smyrna, GA)
Assignees: Morehouse School of Medicine; DevMar Products, LLC; Innovative Envirornmental Companies
C11D17/0039A01N25/26C11D3/48C11D11/0088
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Quick Facts
Patent No.
US 10,704,012
App. No.
16/005,740
Granted
Jul 7, 2020
Kind
B2
Abstract

A method for formulating a cleaning composition contains the step of coating a granular absorbent material with a coating agent to produce a coated absorbent material and mixing the coated absorbent material with a sanitation agent, wherein the coated absorbent material absorbs the sanitation agent to form the cleaning composition. The resulting cleaning composition may be used for cleaning up pathogens or hazardous materials. The cleaning composition may also function as a liquefiable dry cleaning powder for public areas in response to bodily fluid incidents. A coating method of a non-toxic bio static film on a high surface area solid is disclosed.

Claims (21)

1. A sanitation method, comprising the steps of:

applying an effective amount of a cleaning composition to a surface in need of sanitation and removing the cleaning composition after a period of time, wherein the composition comprises a granular absorbent material coated with a biocide and a sanitation agent absorbed in said granular absorbent material, wherein the granular absorbent material is not perlite, and wherein the granular absorbent material constitutes 10-50% (w/w) of the cleaning composition.

2. The method of claim 1 , wherein the surface in need of sanitation comprises a biohazard spill.

3. The method of claim 2 , wherein the biohazard spill is vomit, urine, blood, feces, and/or a chemo therapy drug.

4. The method of claim 1 , further comprising the step of:

washing the surface with a liquid or wiping the surface with a wiper after the removal of the cleaning composition.

5. The method of claim 1 , wherein the surface in need of sanitation is a surface located within a hotel, a hostel, a hospital or a school.

6. The method of claim 1 , wherein the surface in need of sanitation comprises one or more microbial pathogens.

7. The method of claim 1 , wherein the granular absorbent material is selected from the group consisting of ceramic minerals, zeolite, activated carbon, fumed silica, processed clays, cellulosic absorbents, fibrous absorbents and combinations thereof.

8. The method of claim 1 , wherein the granular absorbent material comprises ceramic minerals.

9. The method of claim 1 , wherein the ceramic minerals comprise perlite and/or vermiculite.

10. The method of claim 1 , wherein the biocide comprises an agent selected from the group consisting of silanes, siloxanes, aminopropyltrimethoxysilane, quaternary amines, fumed metal hydroxides, solutions of silver, solutions of copper and combinations thereof.

11. The method of claim 1 , wherein the biocide forms a surface bonded film on the granular absorbent material.

12. The method of claim 1 , wherein the sanitation agent is selected from the group consisting of chlorine bleach solutions, hydrogen peroxide solution, per acetic acid, quaternary amine solutions, alcohol solutions, periodine and combinations thereof.

13. The method of claim 1 , wherein the cleaning composition is capable of absorbing liquid at a liquid loading of 25-30% by volume or 200-300% by mass addition.

14. The method of claim 1 , wherein the cleaning composition further comprises a carboxymethyl cellulose (CMC)-derived polymer and/or a hierarchically porous carbons (HPC)-derived polymer.

15. The method of claim 1 , wherein the granular absorbent material has a surface area per mass ratio up to 10,000 m 2 /g.

16. The method of claim 1 , wherein the granular absorbent material constitutes 25-30% (w/w) of the cleaning composition.

17. The method of claim 1 , wherein the granular absorbent material comprises vermiculite.

18. The method of claim 1 , wherein the cleaning composition further comprises a super-absorbent polymer.

19. The method of claim 1 , wherein the cleaning composition further comprises a modifying agent selected from the group consisting of a tackifier, a thickening agent, a gum, an absorbent polymer, a carboxymethyl cellulose (CMC)-derived polymer, a hierarchically porous carbons (HPC)-derived polymer, or a combination thereof, wherein the cleaning composition comprises 0.5 to 3.5 wt % of the biocide, 0.1 to 10 wt % of the sanitation agent, and 0.1 to 5 wt % of the modifying agent.

Assignments (2)
SECURITY INTEREST Recorded Nov 4, 2021
From: DEVMAR PRODUCTS, LLC
To: SYNOVUS BANK
Reel/Frame 058021/0942 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2019
From: HAWKINS, WALTER; REYNOLDS, SHARON W.; LILLARD, JAMES W., JR.
To: MOREHOUSE SCHOOL OF MEDICINE; DEVMAR PRODUCTS, LLC; INNOVATIVE ENVIRONMENTAL COMPANIES
Reel/Frame 048356/0635 →
Continuity (3)
Continuation 15696480 · Sep 6, 2017
Provisional Application 62495274 · Sep 8, 2016
Related Publication 20180327697A1 · Nov 15, 2018