Soil resistant surface treatment

• US 9,920,281 B2
• Filed: 11/28/2011
• Issued: 03/20/2018
• Est. Priority Date: 11/12/2009
• Status: Active Grant

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Inventors: Smith, Kim R., Olson, Erik C., Olson, Keith E., Lentsch, Steven E., Li, Minyu, Hanson, Catherine, Wold, Andrew
• Primary Examiner(s): Ahvazi, Bijan
• Assistant Examiner(s): Nguyen, Thuy-Ai N
• Application Number:
  US13/304,844
• Publication Number:
  US 20120088420A1
• Time in Patent Office: 2,304 Days
• Field of Search: 442 93
• CPC Class Codes: C11D 2111/20 Industrial or commercial equipment, e.g. reactors, tubes or engines
• CPC Class Codes: C11D 3/2086 Hydroxy carboxylic acids-salts thereof
• CPC Class Codes: C11D 3/33 Amino carboxylic acids
• CPC Class Codes: C11D 3/36 containing phosphorus C11D3/162, C11D3/164, C11D3/166, C11D3/168 take precedence
• CPC Class Codes: C11D 3/3707 Polyethers, e.g. polyalkyleneoxides
• CPC Class Codes: C11D 3/3765 in liquid compositions
• CPC Class Codes: Y10T 428/31649 Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 428/31667 Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product
• CPC Class Codes: Y10T 428/31699 Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 428/31833 Next to aldehyde or ketone condensation product or addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31935 Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 442/2279 Coating or impregnation improves soil repellency, soil release, or anti- soil redeposition qualities of fabric

Abstract

A soil resistant laminate composition and a soil resistant treatment use composition are provided. In particular, a laminate composition comprising a multilayer composition of a clean surface and a dried layer of a soil resistant agent are disclosed. Soil resistant agents according to the invention include copolymers of a maleic/olefin, an olefin/acrylate and combinations thereof and are suitable for delivery with a water or other organic solvent carrier. A kit and methods for treating a clean surface using a soil resistant laminate composition and a soil resistant treatment use composition are provided by the present invention.

Claims

1. A soil resistant laminate composition comprising:

a multilayer composition comprising;

a clean surface as a bottom layer, wherein said surface is a substrate selected from the group consisting of glass, fiberglass, concrete, ceramic, porcelain, plastic, rubber, metals, paint, a cured polymeric coating and combinations thereof; and

a dried polymer layer disposed as a top layer on said clean surface, wherein said polymer layer comprises from about 0.005 wt % to about 20 wt % of at least one soil resistant agent having a molecular weight from about 1,000 to 20,000 g/mol and a water or organic solvent carrier;

wherein the soil resistant agent is selected from copolymers from the group consisting of a maleic/hydrophobically-modified olefin, an olefin/acrylate and combinations thereof,

wherein said soil resistant agent is substantially free of silicone substituents,

wherein polymer layer is substantially free of fluorinated substituents and volatile organic compounds (VOC).

2. The composition according to claim 1 wherein said soil resistant agent is a maleic/olefin, an olefin/acrylate or combinations thereof having a molecular weight from about 1,000 to about 10,000 g/mol.

3. The composition according to claim 1 wherein said soil resistant agent is modified such that no viscosity-building or threshold activity is exhibited.

4. The composition according to claim 2 wherein said molecular weight is from about 2,000 to 10,000 g/mol and said olefin polymers are hydrophobically modified.

5. The composition according to claim 2 wherein said soil resistant agent is an olefin/acrylate copolymer wherein the olefin is selected from the group consisting of ethylene, propylene, butylene, isobutylene and combinations thereof.

6. The composition according to claim 2 wherein said soil resistant agent is a maleic/olefin copolymer having a maleic/olefin ratio from about 1:

4 to 4;

1.

7. The composition according to claim 1 wherein said laminate composition surface has an oil/water contact angle ratio of at least 2.

8. The composition according to claim 1 further comprising an amphoteric acrylic copolymer soil release agent and wherein said clean surface is a substrate selected from the group consisting of glass, fiberglass, concrete, plastic, rubber, metals, and combinations thereof.

9. A soil resistant treatment use composition comprising:

about 0.005 wt % to about 20 wt % of a soil resistant agent selected from co-polymers from the group consisting of a maleic/hydrophobically-modified olefin, an olefin/acrylate, and combinations thereof having a molecular weight from about 1,000 to 20,000 g/mol;

about 0.005 wt % to about 20 wt % of at least one amphoteric acrylic copolymer soil release agent; and

a water or organic solvent carrier,

wherein the composition is substantially free of fluorinated substituents, silicone substituents, and volatile organic compounds (VOC).

10. The composition according to claim 9 wherein said soil resistant agent is a copolymer of maleic/olefin having a ratio of acrylic to maleic moieties from about 0.02:

1 to 5;

1.

11. The composition according to claim 9 wherein the ratio of the acrylic to the maleic moieties is from about 0.05:

1 to 1;

1.

12. The composition according to claim 9 wherein said composition is substantially free of alkali soluble resins and plasticizers, and said soil release agent is modified such that no viscosity-building or threshold activity is exhibited.

13. The composition according to claim 9 wherein said oil/water contact angle ratio of a surface treated with said composition is at least 2.

14. The composition according to claim 13 wherein said oil/water contact angle ratio of a surface treated with said composition is at least 4.

15. The composition according to claim 9 wherein said soil resistant agent is a maleic/olefin copolymer having a molecular weight from about 2,000 to 5,000 g/mol and has a maleic/olefin ratio from about 1:

2 to 2;

1.

16. A kit comprising:

a soil resistant treatment use composition according to claim 9;

an applicator; and

instructions for use of said kit.

17. A method for treating a clean hard surface (wherein the hard surface can be porous or non-porous) comprising:

applying to said surface an aqueous solution comprising from about 0.005% to 20% of a soil resistant agent selected from copolymers from the group consisting of a maleic/hydrophobically-modified olefin, an olefin/acrylate and combinations thereof, wherein said soil resistant agent has a molecular weight from about 1,000 to 20,000 g/mol, and wherein said solution is substantially free of fluorinated substituents, silicone substituents, and volatile organic compounds (VOC); and

a water or organic solvent carrier; and

forming a dried laminate layer of said soil resistant agent over said clean surface, wherein said laminate layer has an oil/water contact angle ratio of at least 2.

18. The method according to claim 17 further comprising the step of first diluting said soil resistant agent with a water or organic solvent carrier before applying said composition to said clean surface.

19. The method according to claim 17 further comprising the step of allowing said laminate layer to dry and form an invisible film and cleaning said treated surface after a period of time with compressed air and without a source of water to remove soils.

20. The method according to claim 17 wherein said soil resistant agent has a molecular weight from about 2,000 to 5,000 g/mol and wherein said oil/water contact angle ratio is at least 6.

21. The method according to claim 17 further comprising cleaning said treated surface after a period of time without a source of water, and wherein said surface is a substrate selected from the group consisting of glass, concrete, porcelain, ceramic, fiberglass, plastic, rubber, metals, paint, a cured polymeric coating and combinations thereof, and wherein said removal of soil step includes application of a water source and/or mechanical force.

22. The method according to claim 17 further comprising adding an amphoteric acrylic copolymer soil release agent to said aqueous solution.