GB2358639A

GB2358639A - A cleaning and polishing composition

Info

Publication number: GB2358639A
Application number: GB0001879A
Authority: GB
Inventors: Jean Braithwaite; David Bedford
Original assignee: Reckitt and Colman Products Ltd; Reckitt Benckiser UK Ltd
Current assignee: Reckitt Benckiser UK Ltd; Reckitt Benckiser Healthcare UK Ltd
Priority date: 2000-01-27
Filing date: 2000-01-27
Publication date: 2001-08-01
Also published as: GB0001879D0

Abstract

A cleaning and polishing composition for porous surfaces comprises 1 to 10% weight/weight silicone oil; 0.1 to 0.5 %w/w wax; 0.2 to 5.0 %w/w surfactant; 0.01 to 2.0 %w/w of a compound selected from a fluaro aliphatic polymeric ester, a substituted dimethyl polysiloxane or an alkyl amide derivative of a pertifluaro polyether, and 5 to 20 %wt/wt solvent, the balance of the composition being water.

Description

2358639_ IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOSITIONS The present

invention relates to a cleaning and polishing composition. In particular the present invention relates to a cleaning and polishing composition for porous surfaces, such as wood surfaces, the composition having improved gloss and water protection properties.

Wood products such as furniture are popular and are present in the majority of households. Because of the nature and the expense of wood furniture, cleaning and polishing compositions, also known as furniture polishes, are widely used to clean and polish the furniture to is protect it and prolong the life of the wood.

Preferable qualities of a furniture polish are that they should give a good gloss to the surface on which they are applied, they should not give smear marks which are detrimental to the appearance of furniture and that they should remove dust and dirt from the surface. In addition, the composition should be easy to use and not require excess effort to polish the surface to give a shine.

In addition to the above, it has for some time now being desirous to include water resistant properties to furniture polishes to avoid water marks, such as water rings, from forming on an item.of wood furniture, for example, when a cold drink is placed on the furniture.

2 The addition of ingredients which reduce the water penetration to a furniture polish often result in detrimental effects on the other desired properties of the polish. For example, increasing the wax or silicone oil content may lead to increased smearing on the surface on the wood. Furniture polishes which contain large quantities of wax and or silicones have poor gloss properties and are often difficult to polish to give a shine, i.e. difficult to use.

A need therefore exists for a cleaning and polishing composition for porous surfaces, such as wood surfaces, which composition provides good water resistance whilst at the same time providing good smear resistance, gloss and ease of use properties.

According to a first aspect to the present invention there is provided a cleaning and polishing composition for porous surfaces comprising:

i 1 to 10% weight/weight (%w/w) silicone oil; ii 0.1 to 5 %w/w wax; iii 0.2 to 5.0 %w/w surfactant; iv 0. 01 to 2.0 %w/w of a compound selected from a flouro aliphatic polymeric ester, a substituted dimethyl polysiloxane or an alkyl amide derivative of a perfluro polyether; and v 5 - 20 %w/w solvent, the balance of the composition being water.

The silicone oil may be a single type of oil or it may be a mixture of oils, preferably the total silicone 3 oil content is a mixture of different molecular weight silicone oils, for example a blend of silicone oils having molecular weights from 350 to 30, 000, for example silicone 350, silicone 10,000 and silicone 30,000.

The waxes may be natural or synthetic waxes. A variety of natural waxes may be included in the compositions of the present invention including beeswax, carnauba and/or candelilla waxes. 10 Alternatively or in conjunction with the natural waxes above, the compositions according to the present invention may include synthetic waxes, including paraffin wax, microcrystalline wax, for example Techniwax (RTM) 15 supplied by Dussek Campbell -Ltd, oxidized microcrystalline wax and montan acid ester wax with the addition of a fatty alcohol ethoxylate, for example Wax KLE (RTM) supplied by Hoescht GmbH.

Surfactants are included in the composition for their cleaning ability and may be anionic, cationic, or non-ionic surfactants. Preferably the surfactant is a non-ionic surfactant, for example sorbitan mono oleate.

The flouro aliphatic polymeric ester is preferably present at an amount of fr.om 0.1 to 1.0 %wt/wt, preferably 0.2 to 0.5 %w/w, most preferably 0.3 to 0.4 %wt/wt. A particularly preferred flouro aliphatic polymeric ester is FC 740 (RTM) as manufactured by 3M.

The modified dimethyl polysiloxane is preferably present at an amount of from 0.1 to 1.0 %wt/wt, 4 preferably 0.2 to 0.5 %wt/wt, most preferably 0.3 to 0.4 %wt/wt. The modified polysiloxane may be silicone wax 23087 (RTM) which is supplied by Wacker GmbH or it may be substituted with amino alkyl groups, for example, silicone fluid L655 (RTM) as supplied by Wacker GmbH.

The alkyl amide derivative of a perfluro polyether is preferably present in an amount from 0.1 to 1.0 %wt/wt, preferably 0.2 to 0.5 %wt/wt, most preferably 0.3 to 0.4 %wt/wt. A preferred alkyl amide derivative of a perfluro polyether is Ausimont 7006 (RTM) (CAS No. 161212-22-2) as supplied by Ausimont.

The solvent present in the composition is present in amount of from 5.0 20.0 %wt/wt, preferably 8 to 15 %wt/wt, most preferably 9 to 12 %wt/wt. The solvent is preferably a petroleum distillate of boiling range 120C 2000C and a preferred solvent is Exxsol D145/160 (RTM) supplied by Exxon. 20 The balance of the composition is water, either being soft or de-ionised water.

The compositions according to the invention may also include:

antioxidants in an amount of 0.001 to 1.0 %wt/wt, for example sodium benzoate, - preservatives in the amount of 0.01 to 0.15 %wt/wt, for example, chloromethylisothiazolineone, - anti-static agents, in the amount of 0.001 to 5.0% wt/wt, - perfumes, in the amount of 0. 1 to 5. 0% wt/wt, and wood extract oils, for example, sandlewood oil, cedar oil or other oils of this nature in an amount of 0.01 to 1.0% wt/wt.

It will be appreciated that compositions according to the invention may be present as liquid or paste emulsions. However, they are preferably presented as liquid emulsions.

In a preferred formulation, according to the invention, the composition is a liquid emulsion and is designed to be spray dispensed from a pressurised container and therefore additionally includes from 5.0 - 40.0% propellant, preferably a volatile organic compound having a suitable vapour pressure, for example, propane, butane, isobutane and pentane. It will be appreciated, however, that any typical aerosol propellants, such as halogenated hydrocarbons, dimethyl ethers, and compressed gases, f or example C02 and N2 may be used.

According to a second aspect to the present invention, there is provided a method of rendering a porous surface water repellent, the method comprising the step of treating the surface with a composition according the first aspect of the present invention.

The invention will now be described with the reference to the following examples.

6 Example 1 The following formulations were made up.

% w/w A B C D E F G H I Soft Water 66.0011 65.7611 65.5011 65.7011 65.8011 65.9011 64.9011 64. 9511 65.9511 Wax KLE (RTM) 034 0.34 0.34 0.34 0.34 0.34 0.34 0.34 0.34 sodium benzoate 0.0085 0.0085 0.0085 0.0085 0.0085 0.0085 0.0085 0.0085 0. 0085 Chloromethyl 0.08 0.085 0.085 0.085 0.085 0.085 0.085 0.085 0.085 isothiazolineone Exxsol D145/160 14.025 14.025 14.025 14.025 14.025 14.025 14.025 14.025 14.025 (RTM) Silicone oil blend 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 350-30,000 molecular weight Sorbiton mono oleate 0.7004 0.7004 0.7004 0.7004 0.7004 0.7004 0.7004 0. 7004 0.7004 Perfume 0.29 0.29 0.29 0.29 0.29 0.29 0.29 0.29 0.29 Candelilla wax 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Beeswax 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 sandlewood oil 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Butane 15 15 15 15 15 15 15 15 is FC 740 (RTM) 0.3 0.5 Techniwax 9210 (RTM) 1.00 1.00 Silicone fluid 0.3 0.2 0.1 0.1 L655 (RTM) Silicone wax 0.05 0.05 23087(RTM) 7 Example 2

The above formulations were benchmarked against a competitor product J, for relative water penetration. The competitor product J claims that it gives resistance to water penetration.

In. addition the above formulations were benchmarked against a number of other furniture polish products for water penetration, namely:

products K, L, M, N and P.

The following method was used to assess the amount is of water that penetrated through the polish surface into the wood:

1 gram of soft water was placed on the surface of a plane pine wooden board and left on the surface for 20 seconds. A pre-weighed tissue paper was then placed on top of the water to remove residual water on the surface of the board. The tissue paper was then re-weighed and the amount of water absorbed into the surface was calculated by the difference.

A scoring system was devised whereby product J was assigned a value of 1 and a score less than 1 indicated superior water resistant properties imparted to the wood (i.e. less water was absorbed into the wood) and a score above 1 indicated more water being absorbed into the wood.

8 The above formulations when assessed by this method gave the following relative rates of water penetration:

Formulation identification Relative rate of water penetration, Product i =1 A 1.26 B 0.54 c 0.44 D 0.6 E 0.95 F 1.1 G 0.7 H 1.02 1 0.86 j 1.00 K 1.52 L 1.71 m 1.21 N 1.56 p 1.55 These results show quite clearly the benefits of slowing down the rate of water penetration into wood by using a cleaning and polishing composition according to the present invention.

Exaiple 3 10 It is a further desirable property of a furniture polish that that it should impart a good gloss to a surface. A number of the above formulations were compared 9 to formulation A for their ability to give gloss, using the following method:

A wooden board of size 30 cm by 30 cm, was sprayed with 0.5 grams of the test product. This was then polished using a clean duster by rubbing ten times up and down and ten times side to side. This was then compared to a wooden board treated in exactly the same way except polished with the reference material. A panel was then asked to score the two boards using the following scoring system:

Score 0 - there is no difference between the boards, Score 1 - I think that the test product is glossier than is the standard, Score 2 - The test product is glossier than the standard, Score 3 - The test product is much glossier than the standard, A similar series of scores from -1 to -3 exist for the standard being glossier than the test product.

The scores obtained were then analysed statistically using a paired t-test with the following results:

Formulation B gave significantly more gloss than formulation A, Formulation G gave significantly more gloss than formulation A, Formulation H gave significantly more gloss than formulation A.

These results show that the compositions according to the present invention exhibit enhanced degrees of gloss on a wooden surface.

Example 4

It is a further desirable property of a furniture polish that it should not give excessive amount of smearing to the surface during application. A number of the above formulations were compared to formula A for their propensity to give smearing using the following is method:

A duster was folded around a rubbing block. 0.5 grams of polish were then sprayed onto the top edge of the duster. The duster on the rubbing block was then wiped down the centre of a wooden tile measuring 30 by 30-cm. A clean duster was then wrapped around the rubbing block and the portion of the wooden board to which polish had been applied was buffed by rubbing five times with the cloth. A panel was then asked to assess the degree of smearing using a scale of:

4 - severe smearing 3 - bad smearing 2 - moderate smearing 1 - slight smearing 0 - no smearing The results obtained for the test formulation were then compared statistically to those of a standard formulation A using a t-test. The following results were obtained:

There was no significant difference in smearing between formulation B and formulation A, There was no significant difference in smearing io between formulation G and formulation A, There was no significant difference in smearing between formulation H and formulation A, is These results show that good resistance to water penetration can be achieved without compromising the amount of smearing that the compositions according to the present invention cause to the surface of wood.

Example 5

A further desirable property is that the furniture polish is not perceived as difficult to use. This was assessed for some of the above formulations using the following method:

A panel were given a test product and a reference sample and asked to polish wooden boards with each of the products. They were then asked to rate how easy the test product to use relative to the standard, using a scale of:

+2 - test sample much easier 12 +1 - test sample easier o - no difference -1 - test sample harder -2 - test sample much harder.

The results were then analysed statistically using a t-test with the results as follows:

There was no significant difference in ease of use 10 between formulation B and formulation A, There was no significant difference in ease of use between formulation G and formulation A, There was no significant difference in ease of use between formulation H and formulation A.

These results show that resistance to water penetration can be improved without making the product 20 more difficult to use.

1

Claims

1. A cleaning and polishing composition for porous surfaces comprising:

i 1 to 10% weight/weight (%w/w) silicone oil; ii 0. 1 to 5 %w/w wax; iii 0.2 to 5.0 %w/w surfactant; iv 0.01 to 2.0 %w/w of a compound selected from a flouro aliphatic polymeric ester, a substituted dimethyl polysiloxane or an alkyl amide derivative of a perfluro polyether; and v 5 - 20 %w/w solvent, the balance of the composition being water.

2. A composition as claimed in claim 1 wherein the silicone oil is a mixture of different molecular weight silicone oils.

3. A composition as claimed in either one of claims 1 and 2 wherein the wax is selected from natural and synthetic waxes, including beeswax, carnauba and candelilla waxes, paraffin wax, microcrystalline wax, oxidized microcrystalline wax and montan acid ester wax with the addition of a fatty alcohol ethoxylate.

4. A composition as claimed in any one of claims 1 to 3 wherein the surfactant is selected from anionic, cationic, and non-ionic surf actants.

14 5. A composition as claimed in claim 4 wherein the surfactant is a non-ionic surfactant.

6. A composition as claimed in any one of claims 1 to 5 wherein the flouro aliphatic polymeric ester is present at an amount of from 0.1 to 1.0 %wt/wt.

7. A composition as claimed in claim 6 wherein the flouro aliphatic polymeric ester is FC 740 (RTM).

8. A composition as claimed in any one of claims 1 to 7 vrein the modified dimethyl polysiloxane is present in an amount of from 0.1 to 1.0 %wt/wt.

9. A composition as claimed in claim 8 wherein the modified polysiloxane is silicone wax 23087 (RTM) 10. A composition as claimed in any one of claims 1 to 8 wherein the modified polysiloxane is substituted with amino alkyl groups.

11. A composition as claimed in claim 10 wherein the modified polysiloxane is silicone fluid L655 (RTM).

12. A composition as claimed in any one of claims 1 to 11 wherein the alkyl amide derivative of a perfluro polyether is present in an amount from 0.1 to 1.0 %wt/wt.

13. A composition as claimed in claim 12 wherein the alkyl amide derivative of a perfluro polyether is Ausimont 7006 (RTM) (CAS No. 161212-22-2).

14. A Composition as Claimed in any one of claims 1 to 13 wherein the solvent is present in amount of from 5.0 - 20.0 %wt/wt.

15. A composition as claimed in claim 14 wherein the solvent is a petroleum distillate of boiling range 120 - 200'OC.

16. A composition as claimed in any one of claims 1 to 15 further including:

antioxidants in an amount of 0.001 to 1.0 %wt/wt, - preservatives in the amount of 0.01 to 0.15 %wt/wt, - anti-static agents, - perfumes, and/or wood extract oils.

17. A composition as claimed in any one of claims 1 to 20 16 presented as a liquid emulsion. 18. A composition as claimed in claim 17 further including from 5.0 - 40.0% propellant selected from propane, butane, isobutane, pentane, halogenated 25 hydrocarbons, dimethyl ethers and compressed C02 and/or N219. A method of rendering a porous surface water repellent, the method comprising the step of treating 30 the surface with a composition as claimed in any one of claims 1 to 18.

16 20. A composition according to the invention, substantially as hereinbefore described or exemplif ied.

21. A method of rendering a porous surface water repellent according to the invention, substantially as hereinbefore described or exemplified.