Liquid cleaning and/or cleansing composition

Patent metadata

Field	Value
Publication number	US-9540593-B2
Application number	US-201414315350-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 having a longitudinal length “L” extending parallel to a z-axis and a complex cross-sectional shape extending on a plane perpendicular to the longitudinal length “L” and parallel to an x-y plane, wherein the complex cross-sectional shape comprises one or more elongate protrusions projecting in a direction parallel to the longitudinal length “L”, each protrusion having at least one edge, and wherein the complex cross-sectional shape is a predetermined non-random cross-sectional shape.

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 having a longitudinal length extending parallel to a z-axis and a complex cross-sectional shape extending on a plane perpendicular to said longitudinal length and parallel to an x-y plane, wherein said complex cross-sectional shape comprises one or more elongate protrusions projecting in a direction parallel to the longitudinal length, each protrusion having at least one edge, and wherein said complex cross-sectional shape is a non-random cross-sectional shape, 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 the abrasive cleaning particles consist of said elements.

3. A liquid cleaning and/or cleansing composition according to claim 1 wherein the protrusions project along substantially the entire length.

4. 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.

5. A liquid cleaning and/or cleansing composition according to claim 1 wherein said elements consist of a single continuous fiber of organic or inorganic material.

6. A liquid cleaning and/or cleansing composition according to claim 1 wherein said complex cross-sectional shape comprises more than about 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.

7. A liquid cleaning and/or cleansing composition according to claim 1 wherein said complex 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.

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

9. A liquid cleaning and/or cleansing composition according to claim 1 wherein said edge exhibits an angle of from about 10° to about 90°.

10. A liquid cleaning and/or cleansing composition according to claim 1 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.

11. 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 .

12. A liquid cleaning and/or cleansing composition according to claim 1 wherein more than about 70% of the particle population exhibit the same shape.

13. A liquid cleaning and/or cleansing composition according to claim 1 wherein the 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.

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

15. A liquid cleaning and/or cleansing composition according to claim 1 wherein the abrasive particles comprise from about 5 to about 70%, by weight of particle, of reinforcing filler particles wherein said filler particles comprise a material selected from the group consisting of organic, in-organic and mixtures thereof.

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

17. A liquid cleaning and/or cleansing composition according to claim 1 further comprising a suspending aid.

18. 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.

19. An impregnated or coated substrate comprising a material selected from the group consisting of paper, nonwoven towel or wipe, sponge, and combinations thereof, and a composition according to claim 1 .

Assignees

• Procter & Gamble

Inventors

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

Classifications

• A61Q19/10

  Washing or bathing preparations · CPC title

• 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

• A61K8/26

  Aluminium; Compounds thereof · CPC title

• A61K8/25

  Silicon; Compounds thereof · CPC title

• C11D3/37

  Polymers {(polymeric surface-active agents C11D1/008; polysaccharides C11D3/222)} · CPC title