NZ525818A - Anti-slip floor coating remover composition - Google Patents

Abstract

A floor coating remover composition with abrasive and reduced slip properties under foot is disclose, wherein the composition comprises an effective amount of an abrasive material selected from a solid plastic, a solid natural stone grit, or other solid inorganic or organic grit, which is incorporated into a floor coating removing formulation to provide a coefficient of friction so that slippage under foot during use is reduced. In the instance of the presence of natural stone grit or other inorganic grit, a stabilizer may be employed to keep the grit in suspension.

Description

525818 WO 02/057376 PCT/USO1/45487 ANTI-SLIP FLOOR COATING REMOVER COMPOSITION CROSS-REFERENCE TO RELATED APPLICATIONS: NONE STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT: NONE BACKGROUND OF THE INVENTION This invention relates generally to a composition for removing a floor coating. 10 More particularly, it relates to such a composition which reduces the incidence of slippage under foot during use.

BACKGROUND ART When stripping a floor finish or floor coating with a chemical composition in many 15 instances, the floor becomes extremely slippery underfoot. Numerous slips and falls have resulted. Accordingly, it is desirable to have a floor coating or floor finish remover composition which reduces the incidence of slippage under foot.

In U.S. patent 1,785,417 a paint and varnish remover is disclosed wherein an abrasive agent in the form of disintegrated mineral particles is added to the remover as an 20 optional ingredient.

In U.S. patent 5,096,610 there are disclosed floor finish remover compositions in which an organosilicon complex is incorporated for the pxirpose of accelerating floor finish removal.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a bar graph depicting wet coefficient of friction in conjunction with the levels of grit employed in the anti-slip floor coating remover composition of this invention.

SUMMARY OF THE INVENTION The prior art does not provide a composition for removing a floor coating or floor finish which reduces the incidence of slippage under foot during use. As employed hereinafter, the term "Floor Coating" is also meant to include floor finishes, floor polishes and floor waxes. 2 (followed by page 2a) It is an object of the invention to provide a composition for removing a floor coating which reduces the incidence of slippage under foot; and/or to provide a composition of the foregoing type which is adaptable to a wide variety of floor coating remover formulations; and/or to provide a composition of the foregoing type which is adaptable to a wide variety of abrasive materials; and/or to provide a composition of the foregoing type containing an abrasive material wherein the abrasive material is stabilized in the composition; or to at least provide the public with a useful choice.

These and still other objects and advantages of the invention will be apparent from the description which follows. In the detailed description below in the examples preferred embodiments of the invention will be described in reference to the full scope of the invention. Rather, the invention may be employed in other embodiments.

In one aspect the present invention provides a floor coating remover composition with abrasive and reduced slip properties under foot comprising a floor coating removing formulation and an effective amount of an abrasive selected from a solid plastic, solid natural stone grit, solid inorganic or solid organic grit wherein the solid plastic, solid natural stone grit, solid inorganic or solid organic grit is present in an amount to reduce slippage under foot during use of the floor coating remover composition. Depending on the density of the plastic or the grit, a stabilizer is present.

In one embodiment, the solid plastic is polyallyl diglycol carbonate.

In another embodiment, the solid plastic is styrene acrylonitrile.

In another embodiment, the solid plastic is cross linked polyvinyl chloride.

In yet another embodiment, the solid plastic is cross linked urea formaldehyde.

In still another embodiment, the solid plastic is nylon.

In yet another embodiment, the natural stone is aluminium oxide.

In still another embodiment, the stabilizer is a thickener.

In another aspect, the present invention provides a use of an abrasive selected from a solid plastic, solid natural stone grit, solid inorganic or solid organic grit in a floor coating remover composition to reduce the incidence of slippage under foot during use of the floor coating remover composition.

In another aspect, the present invention provides a method of stripping a floor coating comprising contacting the floor coating with the composition of the invention.

INTELLECTUAL PROrcSTY OFFICE OF N.Z.

- S JUL 2E31! DESCRIPTION OF PREFERRED EMBODIMENTS The compositions of the present invention are adaptable to a wide variety of floor coating formulations. One particular Formula 1 is described in the following Table I: INTELLECTUAL PRO?3*TY OFFICE OF NX - 6 JUL 2004 deceived WO 02/057376 PCT/USO1/45487 3 TABLE I FORMULA 1 INGREDIENT NAME WT% DEIONIZED WATER 71.7 ETHYLENE GLYCOL MONOBUTYL ETHER 15.0 MONOETHANOLAMINE 4.0 CAUSTIC SODA, 50%, LIQUID 4.0 SODIUM XYLENE SULFONATE, 40% 3.0 TETRASODIUM SALT OF EDTA 1.0 LUBRHOPHOS LP-700 SURFACTANT* 0.8 AMMONIUM HYDROXIDE - 28% 0.3 SURFYNOL 104H SURFACTANT** 0.2 TOTAL PERCENT: 100.0 *Available from Rhodia Inc., Cranbuiy, New Jersey.

* * Available from Air Products and Chemicals, Inc., Allentown, Pennsylvania.

Another Formula 2 is described in Table II.

TABLE II FORMULA 2 INGREDIENT NAME DEIONIZED WATER ETHYLENE GLYCOL MONOBUTYL ETHER MONOETHANOLAMINE CAUSTIC SODA - 50% SODIUM XYLENE SULFONATE - 40% TETRASODIUM SALT OF ETHYLENEDIAMINETETRACETIC ACED LUBRHOPHOS 700 - SURFACTANT 3 0 AMMONIUM HYDROXIDE - 28% SURFYNOL 104H SURFACTANT ACUSOL 820 - ASSOCIATIVE THICKENER* TOTAL PERCENT ♦Available from Rohm & Haas Co., Spring Grove, Pennsylvania.

WT% 66.4 13.9 3.7 3.7 2.8 0.9 0.7 0.3 0.2 1A 100.0 WO 02/057376 PCT/US01/45487 4 A grit material is incorporated in the above Formulas 1 or 2 either before or after they are diluted with water. In the instance where the grit is a solid organic material such as a cellulosic grit or an organic plastic material such as polyallyl diglycol carbonate or crosslinked polyvinyl chloride either Formula 1 or Formula 2 may be employed. In the 5 instance where the grit is a solid inorganic material such as aluminum oxide, silica sand or pumice, or natural stone, Formula 2 may be preferred with the stabilizer thickening agent. Mixing & Usage Procedure The anti-slip additive (grit) can be mixed into the above Formulas 1 and 2 and used 10 in one of the following ways: 1. Premixed into the stripper formulation, with or without a stabilizing additive (thickener). The stripper is then mixed with water immediately prior to use and applied onto the floor. Occasional gentle stirring may be needed to redisperse the grit. Stripping of the floor finish is continued in the usual way. 2. Floor finish stripper is mixed with water and applied onto the floor in the usual way. Grit is broadcast into the wet stripper formulation, either by hand or using a piece of equipment. Stripping of the floor finish is continued in the usual way. 3. Floor finish stripper is mixed with water. Grit is added to the stripper formulation and stirred lightly with the mop or other application device. This is applied onto the floor in the usual way, gently stirring occasionally, as needed to redisperse the grit. Stripping of the floor finish is continued in the usual way. 4. A thickened floor finish stripper formulation as set forth in Formula 2 is mixed with water. Grit is added to the stripper solution & stirred lightly with the mop or other application device. This is applied onto the floor in the usual way. Stripping of the floor finish is continued in the usual way.

WO 02/057376 PCT/USO1/45487 . Floor finish stripper is mixed with water. A special blend of a grit and a thickener is added to the stripper solution & stirred with the mop or other application device. This is applied onto the floor in the usual way. Stripping of the floor finish is continued in the usual way. The special blend of grit and thickener is 61.5 parts by weight 5 of Acrysol 820 and 38.5 parts by weight of an anti-slip grit such as ResNSand 34SG.

The preferred approaches are 1,3 or 4.

Several formulas were evaluated for wet coefficient of friction. Testing was carried out as follows: Four coats of Premia floor finish available from S. C. Johnson Commercial Markets, 10 Inc., Sturtevant, Wisconsin, were applied to vinyl composition tile floor. One part of the Bravo floor finish remover available from S. C. Johnson Commercial Markets, Inc. was mixed with four parts of water (diluted in this way, this stripper is referred to as Bravo in subsequent tables). ResNSand grit was incorporated therein. The ResNSand products used in the following Tables are available from American Fillers & Abrasives Inc., Bangor, 15 Michigan. The chemical compositions of the polymeric grits tested are as follows: ResNSand 34S: Polyallyl diglycol carbonate ResNSand 34H: Styrene acrylonitrile ResNSand 87P: Cross linked polyvinyl chloride ResNSand 69N: Cross linked urea formaldehyde 20 The second letter with the number indicates particle size.

The Vydyne product is nylon available from Solutia Inc., St. Louis, Missouri.

Using a Brungraber MK2 slip tester each of the samples was tested for its wet coefficient of friction (CoF), with different mesh sizes. The results are given below in Table HI. 6 TABLE in Example Description Amounts Grit Size Wet CoF 1.

Bravo ResNSand 34SD 720 grams 80 grams -30 Mesh 0.15-0.16 2.

Bravo ResNSand 34SE 720 grams 80 grams -40 Mesh 0.17-0.19 3.

Bravo ResNSand 34SF 720 grams 80 grams 60-80 Mesh 0.21-0.25 4.

Bravo ResNSand 34SG 720 grams 80 grams 100 Mesh 0.15-0.17 .

Bravo ResNSand 34SH 720 grams 80 grams <100 Mesh 0.19-0.20 6.

Bravo ResNSand 34SJ 720 grams 80 grams 325 Mesh 0.27-0.29 7.

Bravo NO GRIT No Grit 0.03-0.05 Further evaluation of wet coefficient of friction of grit/stripper mixtures with ResNSand 34SG are shown in Table IV. Three coats of Premia floor finish were applied to vinyl composition tile floor and allowed to dry for two weeks. The grit/stripper blends were shaken and poured onto the floor. These blends were of six types.

Using the Brungraber MK2 slip tester each of the samples was tested for its wet coefficient of friction, (CoF), with the results being given below.

WO 02/057376 PCT/US01/45487 7 TABLE IV Examr»le Description Amounts Grit Size Wet CoF 8.

Bravo ResNSand 34SG 999 grams 1 gram 100 Mesh 0.05-0.07 9.

Bravo ResNSand 34SG 997 grams 3 grams 100 Mesh 0.08-0.1 .

Bravo ResNSand 34SG 990 grams 10 grams 100 Mesh 0.13-0.16 11.

Bravo ResNSand 34SG 970 grams 30 grams 100 Mesh 0.16-0.17 12.

Bravo ResNSand 34SG 900 grams 100 grams 100 Mesh 0.19-0.22 13.

Bravo ResNSand 34SG 700 grams 300 grams 100 Mesh 0.19-0.21 14.

Bravo NO GRIT 1000 grams N/A 0.03 These results are plotted in the bar graph shown in Figure 1. They show that a 10% grit level is an optimum amount.

Still further evaluations of wet coefficient of friction of grit/stripper mixtures were carried out as shown in TABLE V.

Three coats of Premia floor finish were applied to vinyl composition tile floor. The next day the grit/stripper mixtures were agitated and poured onto the floor. Eight grits with different chemical composition and particle size were mixed with Formula 1. Using the 10 Brungraber MK 2 slip tester, each of the samples was tested for its wet coefficient of friction (CoF) with the results being given below.

PCT/USO1/45487 TABLE V Examole Description Amounts Grit % Grit Size Wet CoF Bravo ResNSand 34SD 798 grams 2.4 grams 3% -30 mesh 0.10-0.12 16 Bravo ResNSand 34SD 640 grams 160 grams % -30 mesh 0.15-0.17 17 Bravo ResNSand 34HF 798 grams 2.4 grams 3% 40-60 mesh 0.15-0.16 18 Bravo ResNSand 34HF 640 grams 160 grams % 40-60 mesh 0.19-0.22 19 Bravo ResNSand 34SJ 798 grams 2.4 grams 3% 325 mesh 0.10-0.12 Bravo ResNSand 34SJ 640 grams 160 grams % 325 mesh 0.11-0.13 21 Bravo ResNSand 34SC 640 grams 160 grams % 12-16 mesh 0.14-0.16 22 Bravo ResNSand SG 798 grams 2.4 grams 3% 100 mesh 0.14-0.15 23 Bravo ResNSand SG 640 grams 160 grams % 100 mesh 0.17-0.19 24 Bravo ResNSand 87PF 798 grams 2.4 grams 3% 40-60 mesh 0.13-0.14 Bravo ResNSand 87PF 640 grams 160 grams % 40-60 mesh 0.17-0.20 26 Bravo ResNSand 69NF 798 grams 2.4 grams 3% 40-60 mesh 0.12-0.15 27 Bravo ResNSand 69NF 640 grams 160 grams % 40-60 mesh 0.20-0.22 28 Bravo Vydyne 40-60 mesh 798 grams 2.4 grams 3% 40-60 mesh 0.13-0.15 29 Bravo Vydyne 40-60 mesh 640 grams 160 grams % 40-60 mesh 0.16-0.18 Bravo N/A 0% 0.06-0.08 WO 02/057376 PCT/USO1/45487 9 Table VI illustrates scrub tests conducted on vinyl tile using 10 grams of grit for 30 cycles. The purpose of these tests was to evaluate what damage could be caused by different grits.

Black vinyl composition tiles were cut into sections and subjected to 30 cycles 5 (back and forth scrubbing by hand pressure as shown in Examples 31-35 (10 grams each) with a white polishing pad and given a number based on the damage that was made, 1 equaling the most damaging and 10 showing no damage at all. Examples 36-40 show five different types of scrubbing pads with no grit present and the same grading scale.

TABLE VI SCRUB TEST EXAMPLE GRIT NUMBER 31 ResNSand 34HF/White Pad 32 ResNSand 34SF/White Pad 8 33 ResNSand 89PF/White Pad 34 ResNSand 69NF/White Pad 7 White Aluminum Oxide 46 grit/White Pad 1 36 No grit/Blue Pad 7 37 No grit/Green Pad 6 38 No grit/Red Pad 6 39 No grit/Black Pad 40 No grit/White Pad Observations on Data: Regardless of the chemical composition of the grit or its particle size, CoF values obtained were higher than that of a stripper formulation containing no grit. CoF values obtained with the 20% grit consistently exceeded those obtained with 3% grit.

It will thus be seen that there is now provided an anti-slip floor coating remover 30 composition. While the composition is described in conjunction with two basic formulas, it can be employed with any floor finish remover which is water soluble including those which are solvent based or water dispersible.

WO 02/057376 PCT/US01/45487 While many types of grit particles have been evaluated in the anti-slip stripper composition of this invention, those particles which are somewhat angular in nature are preferred. It is theorized that the angular nature is important in the effectiveness. Other solid polymeric grits or inorganic grits will perform equally effectively.

Although any chemical type of solid grit can be used, the styrene acrylonitrile and cross-linked polyvinyl chloride are preferred as they have been shown to abrade the coating film in the stripping process, while effecting minimal damage to the vinyl composition tile underneath. Other solid grit particles such as a solid organic grit in the form of a cellulosic material available from American Fillers and Abrasives Inc., which also provide an anti-slip 10 benefit, whether or not they abrade tile, can also be employed in this invention.

Any level of solid grit has been shown to have a positive effect on the anti-slip attributes between 0.1% and 30%, based on total diluted stripper. A level of 10% appears to be optimal. Additional testing showed that 50% grit also provided the same benefit, but that handling and foam of the stripper/grit blend was compromised adversely. 15 With regard to mesh sizes, it has been shown that particles in the range of 12 US mesh to 325 US mesh have a positive effect on the wet slip resistance. Particles larger than 12 US mesh as well as those less than 325 US are also effective.

Other variations and modifications of this invention will be obvious to those skilled in this art. This invention is not to be limited except as set forth in the following claims. 11

Claims (11)

CLAIMS:

1. A floor coating remover composition with abrasive having reduced slip properties under foot comprising a floor coating removing formulation and an effective amount of an abrasive selected from a solid plastic, solid natural stone grit, solid inorganic 5 or solid organic grit, wherein the solid plastic, solid natural stone grit, solid inorganic or solid organic grit is present in an amount to reduce slippage under foot during the use of the floor coating remover composition.

2. A floor coating remover composition according to claim 1 wherein the abrasive is selected from polyallyl diglycol carbonate, styrene acrylonitrile, cross-linked 10 polyvinyl chloride, cross-linked urea formaldahyde, nylon, aluminum oxide and a cellulosic material, -

3. • 3. A floor coating remover composition with abrasive having reduced slip properties under foot comprising a floor coating removing formulation and an abrasive 15 selected from polyallyl diglycol carbonate, styrene acrylonitrile, cross-linked polyvinyl chloride, cross-linked urea formaldahyde, nylon, aluminium oxide and. a cellulosic material.

4. A floor coating remover composition of any one of claims 1-3 further 20 including a stabilizer,

5. A floor coating remover composition according to claim 4 wherein the stabilizer is a thickening agent. 25

6. Use of an abrasive selected from a solid plastic, solid natural stone grit, solid inorganic or solid organic grit in a floor coating remover composition to reduce the incidence of slippage under foot during use of the floor coating remover composition .

7. Use of an abrasive according to claim 6 wherein the abrasive is selected 30 from polyallyl diglycol carbonate, styrene acrylonitrile, cross-linked polyvinyl chloride, cross-linked urea formaldahyde, nylon, aluminium oxide and a cellulosic materia). INTELLECTUAL PROP^TY OFFICE Or N.Z. -6 JUL fflh \ received 12

8. A method of stripping a floor coating comprising contacting the floor coating with the composition of any one of claims 1-5.

9. A composition as claimed in claim 1 substantially as herein described with reference to any example thereof and with or without reference to the accompanying drawing.

10. A use as claimed in claim 6 substantially as herein described with reference to any example thereof and with or without reference to the accompanying drawing.

11. A method as claimed in claim 8 substantially as herein described with reference to any example thereof and with or without reference to the accompanying drawing. end of claims iiMTELLECTUAL PROPERTY OFFICE OF N.Z. - 6 JUL 2004