Stain-eating flooring

Patent metadata

Field	Value
Publication number	US-9316005-B2
Application number	US-201514594609-A
Country	US
Kind code	B2
Filing date	Jan 12, 2015
Priority date	Aug 30, 2011
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

A flooring is disclosed including a substrate having a coating composition thereon, the coating composition comprising a hardenable film-former and at least 0.5 weight percent of an oxidizing agent sufficient to decolorize a stain on the film-former is disclosed, wherein the oxidizing agent comprises hydrogen peroxide, hypochlorite, and organo-chlorine bleaches and will at least partially decolorize a plurality of stains when applied to the hardened coating, allowed to stand for one hour at room temperature, and evaluated by visual observation of the stain under average overhead fluorescent illumination. The oxidizing agent is not consumed as a catalyst or initiator to polymerize or otherwise cause a reaction in the floor coating before it is applied and before it has hardened. A coating composition of the invention may include from about 0.8 to about 5 weight percent oxidizing agent and the film-former forms a hardened film resistant to rinsing with tap water.

First claim

We claim:

1. A self-bleaching flooring, comprising:
a substrate comprised of ceramic or natural tile, linoleum, cement, or a combination thereof;
a coating on the substrate comprising an anionic hardenable film-former chosen from acrylate, urethane, acrylate with styrene copolymer, or combinations thereof, polyethylene wax, and at least 0.5 weight percent of an oxidizing agent sufficient to decolorize a stain on the film-former, wherein the oxidizing agent comprises hydrogen peroxide, hypochlorite, organic peroxides, organo-chlorine bleaches or a combination thereof and wherein the oxidizing agent is not consumed by initiating or catalyzing a reaction in the film-former composition, the hardened film-former decolorizes stains when contacted with staining solution for at least up to 48 hours, and wherein the coating is substantially free of surfactants.

2. The flooring according to claim 1 wherein the oxidizing agent in the coating comprises hydrogen peroxide.

3. The flooring according to claim 1 wherein the coating comprises about 0.8 to about 5 weight percent oxidizing agent.

4. The flooring according to claim 1 wherein the coating comprises about 0.8 to about 2 weight percent oxidizing agent.

5. The flooring according to claim 1 wherein the film-former in the coating forms a hardened film resistant to rinsing with tap water.

6. The flooring according to claim 1 wherein the coating has a dry coating thickness of about 0.1 to about 100 micrometers.

7. The flooring according to claim 1 wherein the coating has a dry coating thickness of about 5 to about 40 micrometers.

8. The flooring according to claim 1 wherein the coating has a dry coating thickness of about 2.5 to about 20 micrometers.

9. A self-bleaching flooring, comprising:
a floor comprised of ceramic or natural tile, linoleum, cement, or a combination thereof;
a hardenable coating composition on the floor, the composition comprising an anionic polymer chosen from acrylate, urethane, acrylate with styrene copolymer, or combinations thereof, solvent, plasticizer, and at least 0.8 wt percent oxidizing agent wherein the oxidizing agent is not consumed by initiating or catalyzing a reaction in the hardenable coating composition, and the hardened coating composition decolorizes stains when contacted with staining solution for at least up to 48 hours.

10. The flooring according to claim 9 wherein the polymer in the coating composition is comprised of polyacrylate or acrylate copolymer.

11. The flooring according to claim 9 wherein the plasticizer in the coating composition is comprised of benzoate esters.

12. The flooring according to claim 9 wherein the solvent in the coating composition is comprised of diethylene glycol monoethyl ether and dipropylene glycol methyl ether solvent.

13. The flooring according to claim 9 wherein the coating composition further comprises water.

14. The flooring according to claim 9 wherein the oxidizing agent in the coating composition is comprised of hydrogen peroxide.

15. The flooring according to claim 9 wherein the coating has a dry coating thickness of about 0.1 to about 100 micrometers.

16. The flooring according to claim 9 wherein the coating has a dry coating thickness of about 5 to about 40 micrometers.

17. The flooring according to claim 9 wherein the coating has a dry coating thickness of about 2.5 to about 20 micrometers.

Assignees

• Ecolab Usa Inc

Inventors

• Smith Kim R
• Olson Erik C

Classifications

• E04F2290/00

  Specially adapted covering, lining or flooring elements not otherwise provided for · CPC title

• E04F15/08

  only of stone or stone-like material, e.g. {ceramics}, concrete; of glass {or with a top layer of stone or stone-like material, e.g. ceramics, concrete or glass (E04F15/02005 takes precedence)} · CPC title

• C08K5/10

  Esters; Ether-esters · CPC title

• C09D5/1618

  inorganic · CPC title

• Y10T428/31674

  Including natural oil or gum or rosin [e.g., linoleum, etc.] · CPC title