Liquid cleaning and/or cleansing composition

Patent metadata

Field	Value
Publication number	US-9540594-B2
Application number	US-201414315353-A
Country	US
Kind code	B2
Filing date	Jun 26, 2014
Priority date	Jul 2, 2013
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A liquid cleaning and/or cleansing composition comprising non-spherical and/or non-rolling abrasive cleaning particles wherein the abrasive cleaning particles comprise extruded, and/or three dimensional printed, elements wherein the elements have a longitudinal length L extending parallel to a z-axis and a predetermined cross-sectional shape on a plane perpendicular to the longitudinal length L and projecting along the length L, the predetermined cross-sectional shape having a form factor of from 0.1 to 0.7 as measured according to ISO 9276-6, and wherein the ratio of the length L to perimeter-equivalent diameter of the predetermined cross-sectional shape “ECD P Hull ” is from 0.5 to 3.

First claim

What is claimed is:

1. A liquid cleaning and/or cleansing composition comprising non-spherical and/or non-rolling abrasive cleaning particles characterized in that said abrasive cleaning particles comprise extruded, and/or three dimensional printed, elements wherein said elements have a longitudinal length extending parallel to a z-axis and a predetermined cross-sectional shape on a plane perpendicular to said longitudinal length and projecting along said length, said predetermined cross-sectional shape having a form factor of from about 0.1 to about 0.7 as measured according to ISO 9276-6, wherein the ratio of said length to perimeter-equivalent diameter of said predetermined cross-sectional shape “ECD P Hull ” is from about 0.5 to about 3, and wherein said elements comprise a hollow core and are porous, wherein said elements comprise within said hollow core and/or pores an active component selected from the group consisting of cleaning actives, solvent, polymer acid, polymer base, malodor counteractant, perfume, and mixtures thereof.

2. A liquid cleaning and/or cleansing composition according to claim 1 wherein said abrasive cleaning particles consist of said elements.

3. A liquid cleaning and/or cleansing composition according to claim 1 wherein said predetermined cross-sectional shape of said elements has a solidity of from about 0.2 to about 0.8 according to ISO 9276-6.

4. A liquid cleaning and/or cleansing composition according to claim 1 wherein the ratio length to ECD P Hull is from about 0.8 to about 2.5.

5. A liquid cleaning and/or cleansing composition according to claim 1 wherein the form factor is from about 0.1 to about 0.5.

6. A liquid cleaning and/or cleansing composition according to claim 1 wherein said elements are symmetrical or asymmetrical about a plane parallel to said longitudinal length.

7. A liquid cleaning and/or cleansing composition according to claim 1 wherein said elements consist of one or more fibers in solution or slurry.

8. A liquid cleaning and/or cleansing composition according to claim 1 wherein said predetermined cross-sectional shape comprises more than 2 elongate protrusions in the form of abrasive wings having a shape selected from the group consisting of substantially linear, substantially concave, substantially convex and combinations thereof.

9. A liquid cleaning and/or cleansing composition according to claim 8 wherein said predetermined cross-sectional shape comprises from about 3 to about 30 of said protrusions in the form of abrasive wings having a shape selected from the group consisting of substantially linear, substantially concave, substantially convex and combinations thereof.

10. A liquid cleaning and/or cleansing composition according to claim 8 wherein said protrusions comprise at least one edge having an angle of from about 10° to about 90°.

11. A liquid cleaning and/or cleansing composition according to claim 8 wherein each said protrusion has at least one edge having a tip diameter of from greater than about 1 μm to less than about 50 μm.

12. A liquid cleaning and/or cleansing composition according to claim 1 wherein the ECD P Hull is from about 100 μm to about 800 μm.

13. A liquid cleaning and/or cleansing composition according to claim 1 wherein the ECD P Hull is from about 5 μm to about 50 μm.

14. A liquid cleaning and/or cleansing composition according to claim 1 wherein said abrasive cleaning particles have a packing density of from about 50 kg/m 3 to about 400 kg/m 3 .

15. A liquid cleaning and/or cleansing composition according to claim 1 wherein said abrasive particles comprise a material selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polycarbonate, melamine, urea, polyurethane, polyacrylate, polystyrene, phenolic polyesters, polyamide, minerals and mixtures thereof.

16. A liquid cleaning and/or cleansing composition according to claim 1 wherein said abrasive particles comprise a biodegradable material having a biodegradability rate of greater than 50% according to ASTM6400 test method.

17. A liquid cleaning and/or cleansing composition according to claim 1 wherein said abrasive particles have a Mohs hardness of from about 1 to about 5.5.

18. A liquid cleaning and/or cleansing composition according to claim 1 wherein said predetermined cross-sectional shape has a maximum Feret diameter F max of from about 100 μm to about 800 μm, and a minimum Feret diameter F min of from about 50 μm to about 350 μm.

19. A liquid cleaning and/or cleansing composition according to claim 1 wherein said predetermined cross-sectional shape has a maximum Feret diameter F max of from about 5 μm to about 50 μm, and a minimum Feret diameter F min of from about 2 μm to about 15 μm.

20. A liquid cleaning and/or cleansing composition according to claim 1 wherein said predetermined cross-sectional shape has an aspect ratio F min /F max of less than about 1.

21. A liquid cleaning and/or cleansing composition according to claim 1 further comprising a suspending aid, wherein said suspending aid is selected from the group consisting of polycarboxylate polymer thickeners, hydroxyl-containing fatty acid, fatty ester or fatty soap materials, carboxymethylcellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxymethyl cellulose, succinoglycan, naturally occurring polysaccharide polymers and mixtures thereof.

22. A kit comprising a composition according to claim 1 and a substrate selected from the group consisting of paper, nonwoven towel or wipe, sponge, and combinations thereof, wherein said composition is loaded on said substrate.

Assignees

• Procter & Gamble

Inventors

• Gonzales Denis Alfred
• Groombridge Michael Leslie
• Mcdonnell Michael
• Meissner Gregor Anton
• Piff Dominic Michael

Classifications

• C11D3/14 Primary

  Fillers; Abrasives {; Abrasive compositions; Suspending or absorbing agents not provided for in one single group of C11D3/12; Specific features concerning abrasives, e.g. granulometry or mixtures (dyes, pigments C11D3/40)} · CPC title

• B29C48/0022

  combined with cutting · CPC title

• A61Q5/02

  Preparations for cleaning the hair · CPC title

• A61K8/8117

  Homopolymers or copolymers of aromatic olefines, e.g. polystyrene; Compositions of derivatives of such polymers · CPC title

• A61K2800/88

  Two- or multipart kits · CPC title