WO2008134180A1 - Aqueous floor wax composition - Google Patents

Aqueous floor wax composition Download PDF

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Publication number
WO2008134180A1
WO2008134180A1 PCT/US2008/058973 US2008058973W WO2008134180A1 WO 2008134180 A1 WO2008134180 A1 WO 2008134180A1 US 2008058973 W US2008058973 W US 2008058973W WO 2008134180 A1 WO2008134180 A1 WO 2008134180A1
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Prior art keywords
composition
floor wax
aqueous floor
wax composition
wetting agent
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PCT/US2008/058973
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French (fr)
Inventor
Yan Wang
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3M Innovative Properties Company
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Publication of WO2008134180A1 publication Critical patent/WO2008134180A1/en

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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09GPOLISHING COMPOSITIONS; SKI WAXES
    • C09G1/00Polishing compositions
    • C09G1/06Other polishing compositions
    • C09G1/08Other polishing compositions based on wax
    • C09G1/10Other polishing compositions based on wax based on mixtures of wax and natural or synthetic resin

Definitions

  • the present disclosure relates generally to an aqueous floor wax composition.
  • a durable hard coating When an aqueous floor wax is applied to a floor surface, a durable hard coating will be developed after evaporation of the moisture.
  • the coating is not only beneficial to the durability of the floor, but also provides the floor a better appearance and a nonskid property.
  • a wetting agent often a surfactant, is often a very important component in aqueous floor wax compositions.
  • a wetting agent can effectively reduce the surface tension of wax emulsion, allowing the wax emulsion to be evenly distributed on the floor surface, and thereby providing the floor a flat and nice looking finish.
  • a floor wax with a good balance of properties is desirable.
  • Floor waxes containing perfluoro-surfactants having eight carbon atoms (hereafter referred to as "C8 fluorinated wetting agents") as the wetting agents in aqueous floor wax compositions have been used effectively, but it is desirable to have aqueous floor waxes without the C8 fluorinated wetting agents. Therefore, floor waxes that posses desirable properties and also are substantially free of fluorinated surfactants are disclosed.
  • a floor wax composition which comprises, based on the total weight of the composition:
  • aqueous floor wax composition of this disclosure have improved overall properties, while maintaining the desired properties such as high gloss and good leveling.
  • the leveling properties of the aqueous floor wax composition in some preferred embodiments of the present disclosure are even superior to those of the conventional aqueous floor wax compositions using C 8 fluorinated wetting agents.
  • aqueous floor wax composition of the present disclosure can be applied to elastic floors such as polyvinyl chloride (PVC) floors, epoxy floors, rubber floors, flax floors, etc. It can also be applied to rock floors such as marble, granite, ceramic tile, glass brick, etc.
  • elastic floors such as polyvinyl chloride (PVC) floors, epoxy floors, rubber floors, flax floors, etc. It can also be applied to rock floors such as marble, granite, ceramic tile, glass brick, etc.
  • Figure 1 is a diagram showing the leveling properties of the floor wax compositions of Example 1 and Comparative Example Cl.
  • Figure 2 is a diagram showing the glossiness of the floor wax compositions of Example 1 and Comparative Example Cl on a white PVC floor.
  • Figure 3 is a diagram showing the glossiness of the floor wax compositions of Example 1 and Comparative Example Cl on a black PVC floor.
  • Figure 4 is a diagram showing the leveling properties of the floor wax compositions of Example 2 and Comparative Example Cl.
  • Figure 5 is a diagram showing the leveling property of the floor wax compositions of Example 4.
  • an aqueous floor wax composition which comprises, based on the total weight of the composition:
  • non-fluorinated wetting agents including a silicone wetting agent, and at least one wetting agent selected from the group consisting of silicone wetting agents, alkynediol-based hydrocarbon wetting agents, and oleo alkylene oxide block copolymer wetting agents; and,
  • the silicone wetting agent may be, for example, a polyether copolymer organic-modified silicone (such as, for example, Dow Corning 67 additive, from Dow Corning Corporation, Midland, Michigan); a polysiloxane-based surfactant, (such as, for example, HYDROP ALAT 140, from Cognis Corporation, Cinncinnati, OH, TEGOPREN 5878 from Degussa Care Specialties, TEGOPREN 5840 from Degussa Care
  • a polyether copolymer organic-modified silicone such as, for example, Dow Corning 67 additive, from Dow Corning Corporation, Midland, Michigan
  • a polysiloxane-based surfactant such as, for example, HYDROP ALAT 140, from Cognis Corporation, Cinncinnati, OH, TEGOPREN 5878 from Degussa Care Specialties, TEGOPREN 5840 from Degussa Care
  • an anionic organic-modified silicone surfactant having a hydrophilic group such as a carboxylate, phosphonate, phosphate, sulfate and sulfonate (such as, for example, Lambent SW-CP-K, from Lambent Technologies Inc. Norcross, Georgia).
  • a polyether copolymer organic-modified silicone is used.
  • Dow Corning 67 is used.
  • the amount of the polyether copolymer organic- modified silicone is generally in the range of 0.05-3 wt %, or even 0.1-0.4 wt %.
  • the silicone wetting agent in the aqueous floor wax composition is an anionic organic-modified silicone surfactant such as Lambent SW-CP-K, and the content of wetting agent is in the range of 0.1-3 wt %, or even 0.5-1 wt % of the total weight of the composition.
  • the silicone wetting agent is a polysiloxane -based surfactant which is HYDROP ALAT 140, TEGOPREN 5878, TEGOPREN 5840, or mixtures thereof.
  • the amount of the polysiloxane-based surfactant is generally in the range of 0.05-2 wt %, or even 0.05-0.2 wt % of the total weight of the composition.
  • the non-fluorinated wetting agents in the aqueous floor wax composition include an alkynediol-based hydrocarbon wetting agent.
  • the alkynediol-based hydrocarbon wetting agent may be nonionic, anionic, or a nonionic/anionic mixture -type.
  • useful alkynediol-based hydrocarbon wetting agents include, for example, SURFYNOL 504, SURFYNOL MD-20, DYNOL 604, and DYNOL 607 all of which are available from Air Products and Chemicals, Inc. Allentown, PA.
  • the alkynediol-based hydrocarbon wetting agent is used in amounts of 0.05-2 wt %, or even 0.05-0.2 wt % of the total weight of the composition.
  • the alkynediol-based hydrocarbon wetting agent in the aqueous floor wax composition is SURFYNOL 504, in the amount 0.1-0.4 wt %, or even 0.1-0.3 wt % of the total weight of the composition.
  • the non-fluorinated wetting agents in the aqueous floor wax composition contains an oleo alkylene oxide block copolymer wetting agent.
  • the oleo alkylene oxide block copolymer wetting agent is HYDROP ALAT 130 available from Cognis Corporation, Cincinnati, OH, in the amount 0.05-2 wt %, or even 0.05-0.2 wt % of the total weight of the composition.
  • the non-fluorinated wetting agent in the aqueous floor wax composition includes at least one silicone wetting agent, such as a polyether copolymer organic-modified silicone, and at least one alkynediol-based hydrocarbon wetting agent.
  • the non-fluorinated wetting agent in the aqueous floor wax composition includes Dow Corning 67, and at least one of DYNOL 604, SURFYNOL 504, and SURFYNOL MD-20.
  • Floor wax compositions prepared with these combinations can achieve excellent wetting and leveling properties, and also a glossiness comparable to that of floor wax compositions using the conventional C8 fluorinated wetting agent, as shown in Figures 1-3.
  • the film-forming agent in the aqueous floor wax composition includes a film-forming adjuvant, a plasticizer, and optionally a defoamer.
  • Non-fluorinated wetting agents suitable for the aqueous floor wax compositions of this disclosure include, but are not limited to silicone wetting agents, alkynediol-based hydrocarbon wetting agents, and oleo alkylene oxide block copolymer wetting agents.
  • Silicone wetting agents include, for example, polyether copolymer organic- modified silicones, polysiloxane -based surfactants, and anionic organic-modified silicone surfactants having hydrophilic groups such as, for example, carboxylate, phosphonate, phosphate, sulfate and sulfonate groups.
  • polyether copolymer organic- modified silicones include, for example, Dow Corning 67 additive.
  • the Dow Corning 67 additive is generally used in the amount 0.05-3 wt %, or even 0.1-0.4 wt %.
  • polysiloxane-based surfactants include, for example, HYDROP ALAT 140, TEGOPREN 5878 (trisiloxane wetting agent), and TEGOPREN 5840 (trisiloxane wetting agent) generally used in the amount 0.05-2 wt % , or even 0.1-0.3 wt %.
  • anionic organic-modified silicone surfactant include, for example, Lambent SW-CP-K (potassium salts of silicate wetting agents), generally used in the amount 0.1-3 wt %, or even 0.5-1 wt %.
  • Alkynediol-based hydrocarbon wetting agents include, for example, SURFYNOL 504 (generally used in the amount 0.05-2 wt %, or even 0.1-0.4 wt %); SURFYNOL MD- 20 (an alkynediol-type defoamer which is added to the formulation of the aqueous floor wax of this disclosure to improve the wetting and leveling properties of the wax emulsion, generally used in the amount 0.05-2 wt %, or even 0.05-0.2 wt %); DYNOL 604 (generally used in the amount 0.05-2 wt %, or even 0.05-0.2 wt %); DYNOL 607 (generally used in the amount 0.05-2 wt %, or even 0.05-0.2 wt %).
  • Oleo alkylene oxide block copolymer wetting agents include, for example,
  • HYDROPALAT 130 (generally used in the amount 0.05-2 wt %, or even 0.1-0.3 wt %).
  • Polymer emulsions suitable for use in the aqueous floor wax compositions of this disclosure include, but are not limited to, acrylic polymer emulsions and styrene-acrylic acid copolymer emulsions.
  • useful polymer emulsions include, for example, DURAPLUS 2, DURAPLUS 3, PRIMAL 2133, and PRIMAL 3479 available from Rohm & Haas, Philadelphia, PA, Mor-Glo 241 (hereinafter abbreviated as MG241) available from Omnova, MT240 from InterPolymer, and the like.
  • the amount of the polymer emulsion added is typically 25-55 wt %, or even 35-45 wt %.
  • the solid content of the polymer emulsion is generally 10-20 wt %, or even 12-16 wt %.
  • the aqueous floor wax compositions of this disclosure may optionally include a wax emulsion.
  • Wax emulsions are commonly used in floor wax compositions.
  • suitable wax emulsions include, for example, polyethylene wax emulsions and polypropylene wax emulsions, such as: MICHEM EMULSION 39235 (hereinafter abbreviated as ME39235), MICHEM EMULSION 43030 (hereinafter abbreviated as ME43030) available from Michelman Inc.; LAKEWAX 37, LAKEWAX A37D from Lakeland Company; and the like.
  • the amount of the wax emulsion added, if used is generally 3-8 wt %.
  • the solid content of the wax emulsion is in the range of 0-8 wt %, or even 0-4 wt %.
  • the aqueous floor wax compositions of this disclosure may optionally include an alkali-soluble resin. Addition of an alkali-soluble resin emulsion can give the wax coating improved removability. Considerations of cost and the overall performance of the total composition may influence the choice of alkali-soluble resin. Examples of suitable alkali- soluble resin emulsions include, for example, PRIMAL 1531 manufactured by Rohm & Haas (Philadelphia, PA), and the like. Based on the total weight of the aqueous floor wax composition, the amount of the alkali-soluble resin emulsion added generally is 3-8 wt %. The solid content of the alkali-soluble resin emulsion in the formulation is generally 0-3 wt %, or even 0-1.5 wt %.
  • both the wax emulsion and the alkali-soluble resin emulsion are used as regulative adjuvants.
  • the total amount of the wax emulsion and the alkali-soluble resin emulsion added, based on the total weight of the composition is in the range of 0.5-15 wt %, or even 5-10 wt %.
  • the film-forming agent suitable for the purpose of this disclosure includes, at least, a film-forming adjuvant, a plasticizer, and optionally a defoamer.
  • the film-forming adjuvant include, but are not limited to, for example, dipropylene glycol methyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, diethylene glycol butyl ether, and the like.
  • the amount of film- forming adjuvant is typically in the range of 5-8 wt %.
  • suitable plasticizers include, but are not limited to, for example, di-butyl phthalate (DBP), tributoxyethyl phosphate (TBEP), benzoates, pyrrolidine, and the like.
  • the amount of plasticizer is typically in the range of 0.5-1.5 wt %.
  • useful defoamers include, but are not limited to, for example, polydimethyl siloxanes.
  • the amount of defoamer is typically in the range of 0.01-0.5 wt %.
  • the total amount of the film-forming agent is preferably in the range of 5-8 wt %, or even 6-7.5 wt %.
  • the combined amount of the wetting agent and the film- forming agent added, based on the total weight of the composition is in the range of 3-15 wt %, or even 8-11 wt %.
  • the composition is balanced with deionized water to give 100 wt %, according to other components added and the total solid content desired.
  • conventional preservatives, dispersants, defoamers, plasticizers, emulsif ⁇ ers, fluorescent brighteners, and aggregation solvent can be chosen and added in typical amounts.
  • Other components such as perfumes or deodorants, dyes or pigments, germicides, and bacteriostats can also be added to the formulation.
  • preservatives as an example, based on the total weight of the composition, the composition of the present disclosure may include 0.01-0.2 wt %, or even 0.02-0.05 wt % of a preservative.
  • preservatives include, for example, heterocyclic compounds, such as, 2-(4-thiazyl) benzimidazole, methyl benzimidazolecarbamate, 1,2-benzisothiazolinone, and 2-n-octyl-4-isothiazoline-3-one.
  • heterocyclic compounds such as, 2-(4-thiazyl) benzimidazole, methyl benzimidazolecarbamate, 1,2-benzisothiazolinone, and 2-n-octyl-4-isothiazoline-3-one.
  • the floor wax composition of the present disclosure may be formulated following the conventional processes useful in the art.
  • the composition can be prepared by the method: charging deionized water and, optionally, a preservative into a reaction kettle according to the desired formulation; stirring the mixture until it becomes homogeneous; and adding sequentially a film-forming agent, a polymer emulsion, and, optionally, a wax emulsion as regulative adjuvant and an alkali-soluble resin emulsion. It is desirable that the mixture be thoroughly mixed before adding each of the above- mentioned components, to ensure that the mixture is thoroughly homogeneous. When adding the film-forming agent, the stirring time could be extended and the stirring speed could be accelerated if it is difficult to homogeneously mix the material.
  • the floor test area was washed thoroughly to remove any existing waxes using a neutral floor detergent such as 3M Neutral Floor Detergent.
  • the 3M Neutral Floor Detergent was diluted with water at a ratio of 1 : 64.
  • a mop or a floor- cleaning machine equipped with a suitable floor cleaning pad e.g., 3M Red Cleaning Pad 5100 or Blue Polishing Cleaning Pad 5300 was used to absorb the detergent from the floor.
  • the floor was then dried before waxing. When it was impossible to thoroughly clean off the stains on the waxed surface of the floor, a wax removing liquid (3M QuickWax Removing Liquid) was used.
  • 3M Quick Wax Removing Liquid was first diluted with water at a ratio of 1 : 6-10, and then a floor-cleaning machine equipped with a suitable floor wax-removing pad (e.g., 3M Black Cleaning Pad 7200 or
  • the cleaned floor was divided into a plurality of areas with areas of 2 square meters in a direction vertical to the passage direction.
  • the wax to be tested was coated repeatedly with a small wax mop to form a total of four layers in each area, with the amount of the coatings being about 50 square meters per liter).
  • an "X" mark was formed on the surface of the wet wax by drawing two diagonals from the four corners of the area with a brush.
  • Each coating was left standing to dry for an hour, before the next coating was applied.
  • As a control the coating was also formed on a PVC floor and solidified under room temperature. After the solidification, the leveling property was rated by visual inspection, and the extent to which an X mark disappeared was determined by comparing with a wax control.
  • the test results are listed as relative differences according to the scale shown in the following table (in which a higher value indicates better leveling):
  • the method used for measuring glossiness of wax compositions is described in the Annual Book of ASTM Standards, Section 15, Volume 15.04, Test Procedure ASTM D 1455.
  • the test was carried out with a glossiness instrument (Type 4430, Three Angles Glossiness Instrument from BYK company), the test angle of which was set to 20 degrees, 60 degrees, or 85 degrees.
  • the data obtained were the glossiness values for the respective test angles.
  • Heel mark resistance was tested using the method described in Bulletin No. 9-73 of Manufacture Association of Chemical Special Products, except commercially available rubber heels were used instead of the 2 inch rubber cube recommended in the test method.
  • the number of the black heel marks was recorded after the test, with fewer marks indicating better results.
  • a heel mark is the actual deposition of the rubber on or in the coating, and a scratch mark shows the extent to which the wax coatings in the coating area was scratched off.
  • a scrub resistance instrument (with a brush having a dead weight of 450 grams) specified in GB/T9266-88 was used in the test. The floor sample was scrubbed back and forth for the same number of times, after which the extent of damage to the wax coatings was observed and compared.
  • Type PPH-I Pencil Hardness Meter manufactured by Shanghai Modern Environmental Engineering Ltd. was used in the test, according to GB/T6739 standard.
  • Aqueous floor wax compositions were formulated according to the conventional formulation listed in Table 1-1 (Comparative Example Cl) and the experimental formulation listed in Table 1-2 (Example 1), respectively. Leveling property and glossiness of the two waxes obtained from the two formulations were evaluated according to the test methods described above, the results of which are shown in Figure 1 and
  • Example 2 The aqueous floor wax of Example 2 was formulated according to the formulation listed in Table 2. The leveling properties of the floor wax compositions of Example 2 and Comparative Example Cl were evaluated according to the test method described above. The leveling properties on white PVC floor are shown in Table 3 and Figure 4.
  • Example 3 The aqueous floor wax of Example 3 was formulated according to the formulation listed in Table 4. The properties of the floor wax compositions of Example 3 and Comparative Example Cl were evaluated according to the test methods described above. The properties are summarized in Table 5.
  • aqueous floor waxes of Example 4 were formulated according to the formulations listed in Table 6 as Formulations D and E. Each of them was applied repeatedly on a white PVC floor (four times total). As shown in Table 7 and Figure 5, the overall leveling properties thereof are superior. After applying the third wax layer, the leveling properties for formulations D and E were 7 and 8, respectively, and after applying the fourth wax layer, they were 6 and 8, respectively.

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Abstract

The present application provides an aqueous floor wax composition, which comprises, based on the total weight of the composition, (a) 25-55 wt % of a polymer emulsion, the solid content of which is 8 wt % - 30 wt % (b) 5-15 wt % of a wax emulsion, the solid content of which is 0-8 wt % (c) 12 wt % of an alkali-soluble resin emulsion, the solid content of which is 0-3 wt % (d) 2-15 wt % of a film-forming agent (e) 0.01-3 wt % of non-fluorinated wetting agents, including a silicone wetting agent, and at least one wetting agent selected from the group consisting of silicone wetting agents, alkynediol-based hydrocarbon wetting agents, and oleo alkylene oxide block copolymer wetting agents; and (f) balance amount of water, wherein the total solid content of the composition is 10-40 wt %.

Description

AQUEOUS FLOOR WAX COMPOSITION
Field of the Disclosure The present disclosure relates generally to an aqueous floor wax composition.
Background
When an aqueous floor wax is applied to a floor surface, a durable hard coating will be developed after evaporation of the moisture. The coating is not only beneficial to the durability of the floor, but also provides the floor a better appearance and a nonskid property.
A wetting agent, often a surfactant, is often a very important component in aqueous floor wax compositions. A wetting agent can effectively reduce the surface tension of wax emulsion, allowing the wax emulsion to be evenly distributed on the floor surface, and thereby providing the floor a flat and nice looking finish.
Summary
A floor wax with a good balance of properties is desirable. Floor waxes containing perfluoro-surfactants having eight carbon atoms (hereafter referred to as "C8 fluorinated wetting agents") as the wetting agents in aqueous floor wax compositions have been used effectively, but it is desirable to have aqueous floor waxes without the C8 fluorinated wetting agents. Therefore, floor waxes that posses desirable properties and also are substantially free of fluorinated surfactants are disclosed.
In one aspect of the disclosure, there is provided a floor wax composition, which comprises, based on the total weight of the composition:
(a) 25-55 wt %, or even 35-45 wt % of a polymer emulsion, the solid content of which is 8 wt %-30 wt %, or even 12 wt %-16 wt %;
(b) 0-15 wt %, or even 3-8 wt % of a wax emulsion, the solid content of which is 0-8 wt %, or even 0-4 wt %; (c) 0-12 wt %, or even 3-8 wt % of an alkali-soluble resin emulsion, the solid content of which is 0-3 wt %, or even 0-1.5 wt %;
(d) 2-15 wt %, or even 5-8 wt % of a film-forming agent; (e) 0.01-3 wt %, or even 0.1-1.5 wt % of non-fluorinated wetting agents, including a silicone wetting agent, and at least one wetting agent selected from the group consisting of silicone wetting agents, alkynediol-based hydrocarbon wetting agents, and oleo alkylene oxide block copolymer wetting agents; and, (f) balance amount of water, wherein the total solid content of the composition is 10-40 wt %, or even 15-25 wt %.
In another aspect of the disclosure, there is provided a method for partly or entirely replacing the fluorine-containing wetting agents in floor wax compositions with non- fluorinated wetting agents including a silicone wetting agent, and at least one wetting agent selected from the group consisting of silicone wetting agents, alkynediol-based hydrocarbon wetting agents, and oleo alkylene oxide block copolymer wetting agents.
It has been found that some embodiments of the aqueous floor wax composition of this disclosure have improved overall properties, while maintaining the desired properties such as high gloss and good leveling. The leveling properties of the aqueous floor wax composition in some preferred embodiments of the present disclosure are even superior to those of the conventional aqueous floor wax compositions using C 8 fluorinated wetting agents.
The aqueous floor wax composition of the present disclosure can be applied to elastic floors such as polyvinyl chloride (PVC) floors, epoxy floors, rubber floors, flax floors, etc. It can also be applied to rock floors such as marble, granite, ceramic tile, glass brick, etc.
Brief Description of the Drawings Figure 1 is a diagram showing the leveling properties of the floor wax compositions of Example 1 and Comparative Example Cl.
Figure 2 is a diagram showing the glossiness of the floor wax compositions of Example 1 and Comparative Example Cl on a white PVC floor.
Figure 3 is a diagram showing the glossiness of the floor wax compositions of Example 1 and Comparative Example Cl on a black PVC floor.
Figure 4 is a diagram showing the leveling properties of the floor wax compositions of Example 2 and Comparative Example Cl. Figure 5 is a diagram showing the leveling property of the floor wax compositions of Example 4.
Detailed Description There is provided an aqueous floor wax composition, which comprises, based on the total weight of the composition:
(a) 25-55 wt %, or even 35-45 wt % of a polymer emulsion, the solid content of which is 8 wt %-30 wt %, or even 12 wt %-16 wt %;
(b) 0-15 wt %, or even 3-8 wt % of a wax emulsion, the solid content of which is 0-8 wt %, or even 0-4 wt %;
(c) 0-12 wt %, or even 3-8 wt % of an alkali-soluble resin emulsion, the solid content of which is 0-3 wt %, or even 0-1.5wt %;
(d) 2-15 wt %, or even 5-8 wt % of a film-forming agent;
(e) 0.01-3 wt %, or even 0.1-1.5 wt % of non-fluorinated wetting agents, including a silicone wetting agent, and at least one wetting agent selected from the group consisting of silicone wetting agents, alkynediol-based hydrocarbon wetting agents, and oleo alkylene oxide block copolymer wetting agents; and,
(f) balance amount of water, wherein the total solid content of the composition is 10-40 wt %, or even 15-25wt %.
In some embodiments, the silicone wetting agent may be, for example, a polyether copolymer organic-modified silicone (such as, for example, Dow Corning 67 additive, from Dow Corning Corporation, Midland, Michigan); a polysiloxane-based surfactant, (such as, for example, HYDROP ALAT 140, from Cognis Corporation, Cinncinnati, OH, TEGOPREN 5878 from Degussa Care Specialties, TEGOPREN 5840 from Degussa Care
Specialties, or mixtures thereof); or an anionic organic-modified silicone surfactant having a hydrophilic group such as a carboxylate, phosphonate, phosphate, sulfate and sulfonate (such as, for example, Lambent SW-CP-K, from Lambent Technologies Inc. Norcross, Georgia). Typically, a polyether copolymer organic-modified silicone is used. In some embodiments Dow Corning 67 is used. The amount of the polyether copolymer organic- modified silicone (for example, Dow Corning 67) is generally in the range of 0.05-3 wt %, or even 0.1-0.4 wt %. In other embodiments, the silicone wetting agent in the aqueous floor wax composition is an anionic organic-modified silicone surfactant such as Lambent SW-CP-K, and the content of wetting agent is in the range of 0.1-3 wt %, or even 0.5-1 wt % of the total weight of the composition. In still other embodiments, the silicone wetting agent is a polysiloxane -based surfactant which is HYDROP ALAT 140, TEGOPREN 5878, TEGOPREN 5840, or mixtures thereof. The amount of the polysiloxane-based surfactant is generally in the range of 0.05-2 wt %, or even 0.05-0.2 wt % of the total weight of the composition.
In some embodiments, the non-fluorinated wetting agents in the aqueous floor wax composition include an alkynediol-based hydrocarbon wetting agent. Typically, the alkynediol-based hydrocarbon wetting agent may be nonionic, anionic, or a nonionic/anionic mixture -type. Examples of useful alkynediol-based hydrocarbon wetting agents, include, for example, SURFYNOL 504, SURFYNOL MD-20, DYNOL 604, and DYNOL 607 all of which are available from Air Products and Chemicals, Inc. Allentown, PA. Typically the alkynediol-based hydrocarbon wetting agent is used in amounts of 0.05-2 wt %, or even 0.05-0.2 wt % of the total weight of the composition. In some embodiments, the alkynediol-based hydrocarbon wetting agent in the aqueous floor wax composition is SURFYNOL 504, in the amount 0.1-0.4 wt %, or even 0.1-0.3 wt % of the total weight of the composition.
In other embodiments, the non-fluorinated wetting agents in the aqueous floor wax composition contains an oleo alkylene oxide block copolymer wetting agent. In some embodiments the oleo alkylene oxide block copolymer wetting agent is HYDROP ALAT 130 available from Cognis Corporation, Cincinnati, OH, in the amount 0.05-2 wt %, or even 0.05-0.2 wt % of the total weight of the composition.
In some embodiments, the non-fluorinated wetting agent in the aqueous floor wax composition includes at least one silicone wetting agent, such as a polyether copolymer organic-modified silicone, and at least one alkynediol-based hydrocarbon wetting agent. In other embodiments the non-fluorinated wetting agent in the aqueous floor wax composition includes Dow Corning 67, and at least one of DYNOL 604, SURFYNOL 504, and SURFYNOL MD-20. Floor wax compositions prepared with these combinations can achieve excellent wetting and leveling properties, and also a glossiness comparable to that of floor wax compositions using the conventional C8 fluorinated wetting agent, as shown in Figures 1-3. In some embodiments, the film-forming agent in the aqueous floor wax composition includes a film-forming adjuvant, a plasticizer, and optionally a defoamer.
Non-fluorinated wetting agents suitable for the aqueous floor wax compositions of this disclosure include, but are not limited to silicone wetting agents, alkynediol-based hydrocarbon wetting agents, and oleo alkylene oxide block copolymer wetting agents.
Silicone wetting agents include, for example, polyether copolymer organic- modified silicones, polysiloxane -based surfactants, and anionic organic-modified silicone surfactants having hydrophilic groups such as, for example, carboxylate, phosphonate, phosphate, sulfate and sulfonate groups. Examples of polyether copolymer organic- modified silicones include, for example, Dow Corning 67 additive. The Dow Corning 67 additive is generally used in the amount 0.05-3 wt %, or even 0.1-0.4 wt %. Examples of polysiloxane-based surfactants include, for example, HYDROP ALAT 140, TEGOPREN 5878 (trisiloxane wetting agent), and TEGOPREN 5840 (trisiloxane wetting agent) generally used in the amount 0.05-2 wt % , or even 0.1-0.3 wt %. Examples of anionic organic-modified silicone surfactant include, for example, Lambent SW-CP-K (potassium salts of silicate wetting agents), generally used in the amount 0.1-3 wt %, or even 0.5-1 wt %.
Alkynediol-based hydrocarbon wetting agents include, for example, SURFYNOL 504 (generally used in the amount 0.05-2 wt %, or even 0.1-0.4 wt %); SURFYNOL MD- 20 (an alkynediol-type defoamer which is added to the formulation of the aqueous floor wax of this disclosure to improve the wetting and leveling properties of the wax emulsion, generally used in the amount 0.05-2 wt %, or even 0.05-0.2 wt %); DYNOL 604 (generally used in the amount 0.05-2 wt %, or even 0.05-0.2 wt %); DYNOL 607 (generally used in the amount 0.05-2 wt %, or even 0.05-0.2 wt %). Oleo alkylene oxide block copolymer wetting agents include, for example,
HYDROPALAT 130, (generally used in the amount 0.05-2 wt %, or even 0.1-0.3 wt %).
Polymer emulsions suitable for use in the aqueous floor wax compositions of this disclosure include, but are not limited to, acrylic polymer emulsions and styrene-acrylic acid copolymer emulsions. Examples of useful polymer emulsions include, for example, DURAPLUS 2, DURAPLUS 3, PRIMAL 2133, and PRIMAL 3479 available from Rohm & Haas, Philadelphia, PA, Mor-Glo 241 (hereinafter abbreviated as MG241) available from Omnova, MT240 from InterPolymer, and the like. Based on the total weight of the composition, the amount of the polymer emulsion added is typically 25-55 wt %, or even 35-45 wt %. The solid content of the polymer emulsion is generally 10-20 wt %, or even 12-16 wt %.
The aqueous floor wax compositions of this disclosure may optionally include a wax emulsion. Wax emulsions are commonly used in floor wax compositions. Examples of suitable wax emulsions include, for example, polyethylene wax emulsions and polypropylene wax emulsions, such as: MICHEM EMULSION 39235 (hereinafter abbreviated as ME39235), MICHEM EMULSION 43030 (hereinafter abbreviated as ME43030) available from Michelman Inc.; LAKEWAX 37, LAKEWAX A37D from Lakeland Company; and the like. Based on the total weight of the floor wax composition, the amount of the wax emulsion added, if used, is generally 3-8 wt %. The solid content of the wax emulsion is in the range of 0-8 wt %, or even 0-4 wt %.
The aqueous floor wax compositions of this disclosure may optionally include an alkali-soluble resin. Addition of an alkali-soluble resin emulsion can give the wax coating improved removability. Considerations of cost and the overall performance of the total composition may influence the choice of alkali-soluble resin. Examples of suitable alkali- soluble resin emulsions include, for example, PRIMAL 1531 manufactured by Rohm & Haas (Philadelphia, PA), and the like. Based on the total weight of the aqueous floor wax composition, the amount of the alkali-soluble resin emulsion added generally is 3-8 wt %. The solid content of the alkali-soluble resin emulsion in the formulation is generally 0-3 wt %, or even 0-1.5 wt %.
In the aqueous floor wax compositions of this disclosure, both the wax emulsion and the alkali-soluble resin emulsion are used as regulative adjuvants. Generally, the total amount of the wax emulsion and the alkali-soluble resin emulsion added, based on the total weight of the composition, is in the range of 0.5-15 wt %, or even 5-10 wt %.
Generally, the film-forming agent suitable for the purpose of this disclosure includes, at least, a film-forming adjuvant, a plasticizer, and optionally a defoamer. Examples of the film-forming adjuvant include, but are not limited to, for example, dipropylene glycol methyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, diethylene glycol butyl ether, and the like. The amount of film- forming adjuvant is typically in the range of 5-8 wt %. Examples of suitable plasticizers include, but are not limited to, for example, di-butyl phthalate (DBP), tributoxyethyl phosphate (TBEP), benzoates, pyrrolidine, and the like. The amount of plasticizer is typically in the range of 0.5-1.5 wt %. Examples of useful defoamers include, but are not limited to, for example, polydimethyl siloxanes. The amount of defoamer is typically in the range of 0.01-0.5 wt %. The total amount of the film-forming agent is preferably in the range of 5-8 wt %, or even 6-7.5 wt %. Generally, the combined amount of the wetting agent and the film- forming agent added, based on the total weight of the composition, is in the range of 3-15 wt %, or even 8-11 wt %.
The composition is balanced with deionized water to give 100 wt %, according to other components added and the total solid content desired. Depending on the overall performance desired, conventional preservatives, dispersants, defoamers, plasticizers, emulsifϊers, fluorescent brighteners, and aggregation solvent can be chosen and added in typical amounts. Other components such as perfumes or deodorants, dyes or pigments, germicides, and bacteriostats can also be added to the formulation. Using preservatives as an example, based on the total weight of the composition, the composition of the present disclosure may include 0.01-0.2 wt %, or even 0.02-0.05 wt % of a preservative. Examples of suitable preservatives include, for example, heterocyclic compounds, such as, 2-(4-thiazyl) benzimidazole, methyl benzimidazolecarbamate, 1,2-benzisothiazolinone, and 2-n-octyl-4-isothiazoline-3-one.
The floor wax composition of the present disclosure may be formulated following the conventional processes useful in the art. For example, the composition can be prepared by the method: charging deionized water and, optionally, a preservative into a reaction kettle according to the desired formulation; stirring the mixture until it becomes homogeneous; and adding sequentially a film-forming agent, a polymer emulsion, and, optionally, a wax emulsion as regulative adjuvant and an alkali-soluble resin emulsion. It is desirable that the mixture be thoroughly mixed before adding each of the above- mentioned components, to ensure that the mixture is thoroughly homogeneous. When adding the film-forming agent, the stirring time could be extended and the stirring speed could be accelerated if it is difficult to homogeneously mix the material.
A more detailed description will be provided in the following examples. These examples are merely for illustrative purposes only and are not meant to be limiting on the scope of the appended claims. Examples
Unless indicated otherwise, all percentages, ratios, proportions used herein are calculated by weight, and all temperatures are represented by degrees Celsius (0C). All materials used in the examples without specified suppliers are commercially available materials. The sources of the materials used in the examples are listed as follows:
Figure imgf000009_0001
Test methods
Leveling property evaluation of the aqueous floor wax Any wax already existing in the test area of the floor was washed off, and the area was re-waxed according to the following typical janitorial procedure:
Before waxing, the floor test area was washed thoroughly to remove any existing waxes using a neutral floor detergent such as 3M Neutral Floor Detergent. The 3M Neutral Floor Detergent was diluted with water at a ratio of 1 : 64. A mop or a floor- cleaning machine equipped with a suitable floor cleaning pad (e.g., 3M Red Cleaning Pad 5100 or Blue Polishing Cleaning Pad 5300) was used to absorb the detergent from the floor. The floor was then dried before waxing. When it was impossible to thoroughly clean off the stains on the waxed surface of the floor, a wax removing liquid (3M QuickWax Removing Liquid) was used. When used, 3M Quick Wax Removing Liquid was first diluted with water at a ratio of 1 : 6-10, and then a floor-cleaning machine equipped with a suitable floor wax-removing pad (e.g., 3M Black Cleaning Pad 7200 or
Brown Wax-removing Pad 7100) was used until all the wax was thoroughly removed.
Then the floor was washed and cleaned thoroughly with water, and re-waxed after drying.
The cleaned floor was divided into a plurality of areas with areas of 2 square meters in a direction vertical to the passage direction. The wax to be tested was coated repeatedly with a small wax mop to form a total of four layers in each area, with the amount of the coatings being about 50 square meters per liter). Immediately after each coating was completed, an "X" mark was formed on the surface of the wet wax by drawing two diagonals from the four corners of the area with a brush. Each coating was left standing to dry for an hour, before the next coating was applied. As a control, the coating was also formed on a PVC floor and solidified under room temperature. After the solidification, the leveling property was rated by visual inspection, and the extent to which an X mark disappeared was determined by comparing with a wax control. The test results are listed as relative differences according to the scale shown in the following table (in which a higher value indicates better leveling):
Figure imgf000011_0001
Glossiness test of the aqueous floor wax
The method used for measuring glossiness of wax compositions is described in the Annual Book of ASTM Standards, Section 15, Volume 15.04, Test Procedure ASTM D 1455. The test was carried out with a glossiness instrument (Type 4430, Three Angles Glossiness Instrument from BYK company), the test angle of which was set to 20 degrees, 60 degrees, or 85 degrees. The data obtained were the glossiness values for the respective test angles.
Test methods for black heel mark and scratch mark resistance
Heel mark resistance was tested using the method described in Bulletin No. 9-73 of Manufacture Association of Chemical Special Products, except commercially available rubber heels were used instead of the 2 inch rubber cube recommended in the test method. The number of the black heel marks was recorded after the test, with fewer marks indicating better results. A heel mark is the actual deposition of the rubber on or in the coating, and a scratch mark shows the extent to which the wax coatings in the coating area was scratched off.
Water resistance test
The test method is described in the Annual Book of ASTM Standards, Section 15, Volume 15.04, Test Procedure TM51 D 1793. The following grades were used to rate the water resistance of the coating composition:
Value Description
Figure imgf000012_0001
Scrub resistance test
A scrub resistance instrument (with a brush having a dead weight of 450 grams) specified in GB/T9266-88 was used in the test. The floor sample was scrubbed back and forth for the same number of times, after which the extent of damage to the wax coatings was observed and compared.
Pencil hardness test method
Type PPH-I Pencil Hardness Meter manufactured by Shanghai Modern Environmental Engineering Ltd. was used in the test, according to GB/T6739 standard.
Preparation of the floor wax composition
The floor wax compositions of the examples were formulated according to conventional formulating procedures described above.
Example 1 and Comparative Example Cl :
Aqueous floor wax compositions were formulated according to the conventional formulation listed in Table 1-1 (Comparative Example Cl) and the experimental formulation listed in Table 1-2 (Example 1), respectively. Leveling property and glossiness of the two waxes obtained from the two formulations were evaluated according to the test methods described above, the results of which are shown in Figure 1 and
Figures 2-3, respectively.
It can be seen from Figure 1, on both white PVC and black PVC, the leveling properties of the experimental floor wax composition (marked with "the present formulation", same as in other examples and Figures) are superior to those of the conventional compositions (marked with "conventional formulation", same as in other examples and Figures) using C8 fluorinated wetting agent. It can be seen from Figure 2, on white PVC, although the glossiness of the experimental compositions is slightly higher than those with the conventional formulation, there is not much difference. It can be seen from Figure 3, on black PVC, although the glossiness of the experimental compositions is slightly lower than those with the conventional formulation, there is also not much difference. That is to say, the glossiness of the compositions formulated by the conventional formulation and the experimental formulation are comparable.
Table 1-1 Conventional formulation
Figure imgf000013_0001
Table 1-2 Experimental Formulation
Figure imgf000014_0001
Example 2: The aqueous floor wax of Example 2 was formulated according to the formulation listed in Table 2. The leveling properties of the floor wax compositions of Example 2 and Comparative Example Cl were evaluated according to the test method described above. The leveling properties on white PVC floor are shown in Table 3 and Figure 4.
Figure imgf000015_0001
Example 3 : The aqueous floor wax of Example 3 was formulated according to the formulation listed in Table 4. The properties of the floor wax compositions of Example 3 and Comparative Example Cl were evaluated according to the test methods described above. The properties are summarized in Table 5.
Table 4 Experimental Formulation
Figure imgf000016_0001
It can be seen from Table 5, that the experimental aqueous floor wax composition of Example 3 substantially maintains the desired properties of the conventional floor wax composition of Comparative Example Cl. Furthermore, the glossiness of the composition of the experimental aqueous floor wax composition is even superior to that of the conventional floor wax composition. Table 5
Figure imgf000017_0001
Example 4:
Experimental aqueous floor waxes of Example 4 were formulated according to the formulations listed in Table 6 as Formulations D and E. Each of them was applied repeatedly on a white PVC floor (four times total). As shown in Table 7 and Figure 5, the overall leveling properties thereof are superior. After applying the third wax layer, the leveling properties for formulations D and E were 7 and 8, respectively, and after applying the fourth wax layer, they were 6 and 8, respectively.
Table 6 Experimental Formulations
Figure imgf000018_0001
Table 7
Figure imgf000018_0002
While particular embodiments of the present disclosure have been illustrated and described, it would be obvious to those skilled in the art that various other changes and/or modifications can be made without departing from the spirit and scope of the disclosure. In addition, the present disclosure is not limited to what has been disclosed in the preferred embodiments. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this disclosure.

Claims

What is claimed is:
1. An aqueous floor wax composition, comprising, based on the total weight of the composition:
(a) 25-55 wt % of a polymer emulsion, the solid content of which is 8 wt % - 30 wt
/o,
(b) 0-15 wt % of a wax emulsion, the solid content of which is 0-8 wt %;
(c) 0-12 wt % of an alkali-soluble resin emulsion, the solid content of which is 0-3 wt %;
(d) 2-15 wt % of a film- forming agent; (e) 0.01-3 wt % of non-fluorinated wetting agents, comprising a silicone wetting agent, and at least one wetting agent selected from the group consisting of silicone wetting agents, alkynediol-based hydrocarbon wetting agents, and oleo alkylene oxide block copolymer wetting agents; and
(f) balance amount of water, wherein the total solid content of the composition is 10-40 wt %.
2. The aqueous floor wax composition of claim 1, wherein the content of the polymer emulsion in the composition is 35-45 wt %.
3. The aqueous floor wax composition of claim 1, wherein the content of the wax emulsion in the composition is 3-8 wt %.
4. The aqueous floor wax composition of claim 1, wherein the content of the alkali-soluble resin emulsion in the composition is 3-8 wt %.
5. The aqueous floor wax composition of claim 1, wherein the content of the film-forming agent in the composition is 5-8 wt %.
6. The aqueous floor wax composition of claim 1, wherein the content of the non- fluorinated wetting agents in the composition is 0.1-1.5 wt %.
7. The aqueous floor wax composition of claim 1, wherein the total solid content of the aqueous floor wax composition is 15-25 wt %.
8. The aqueous floor wax composition of claim 1, wherein the total solid content of the polymer emulsion is 12 wt % - 16 wt %.
9. The aqueous floor wax composition of claim 1, wherein the total solid content of the wax emulsion is 0-4 wt %.
10. The aqueous floor wax composition of claim 1, wherein the total solid content of the alkali-soluble resin emulsion is 0-1.5 wt %.
11. The aqueous floor wax composition of claim 1 , wherein the silicone wetting agent is selected from the group consisting of polyether copolymer organic-modified silicone, polysiloxane-based surfactants, and an anionic organic modified silicone surfactant having a hydrophilic group select from the group consisting of a carboxylate, phosphonate, phosphate, sulfate and sulfonate.
12. The aqueous floor wax composition of claim 11, wherein the silicone wetting agent is polyether copolymer organic-modified silicone.
13. The aqueous floor wax composition of claim 12, wherein the amount of polyether copolymer organic-modified silicone is 0.05-3 wt %.
14. The aqueous floor wax composition of claim 13, wherein the amount of polyether copolymer organic-modified silicone is 0.1-0.4 wt %.
15. The aqueous floor wax composition of claim 11, wherein the silicone wetting agent is anionic organic modified silicone surfactant.
16. The aqueous floor wax composition of claim 15, wherein the amount of the anionic organic modified silicone surfactant is 0.1-3 wt % of the total weight of the composition.
17. The aqueous floor wax composition of claim 16, wherein the amount of the anionic organic modified silicone surfactant is 0.5-1 wt % of the total weight of the composition.
18. The aqueous floor wax composition of claim 11, wherein the silicone wetting agent is a polysiloxane-based surfactant.
19. The aqueous floor wax composition of claim 18, wherein the amount of the polysiloxane-based surfactant is 0.05-2 wt % of the total weight of the composition.
20. The aqueous floor wax composition of claim 19, wherein the amount of the polysiloxane-based surfactant is 0.05-0.2 wt % of the total weight of the composition.
21. The aqueous floor wax composition of claim 1, wherein the amount of alkynediol- based hydrocarbon wetting agent is 0.05-2 wt % of the total weight of the composition.
22. The aqueous floor wax composition of claim 21, wherein the amount of the alkynediol-based hydrocarbon wetting agent is 0.05-0.2 wt % of the total weight of the composition.
23. The aqueous floor wax composition of claim 1, wherein the amount of alkylene oxide block copolymer wetting agent is 0.05-2 wt % of the total weight of the composition.
24. The aqueous floor wax composition of claim 23, wherein the amount of alkylene oxide block copolymer wetting agents is 0.05-0.2 wt % of the total weight of the composition.
25. The aqueous floor wax composition of claim 1, wherein the non-fluorinated wetting agent includes at least one silicone wetting agent and at least one alkynediol-based hydrocarbon wetting agent.
26. The aqueous floor wax composition of claim 25, wherein the silicone wetting agent is a polyether copolymer organic-modified silicone.
27. The aqueous floor wax composition of claim 1, wherein the film-forming agent comprises a film- forming adjuvant, a plasticizer, and a defoamer.
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