GB2205577A

GB2205577A - Perfumed paint

Info

Publication number: GB2205577A
Application number: GB08713367A
Authority: GB
Inventors: Paul Moritz
Original assignee: CUSTOM FRAGRANCES Ltd
Current assignee: CUSTOM FRAGRANCES Ltd
Priority date: 1987-06-08
Filing date: 1987-06-08
Publication date: 1988-12-14
Also published as: GB8713367D0

Abstract

A paint composition includes at least one perfume agent.

Description

AN EMULSION PAINT COMPOUND This invention relates to a method of manufacturing paint and to an emulsion paint compound.

Water based emulsion paints have been used for many years, by far their most common use being as a covering for interior walls and ceilings.

The present invention provides an emulsion paint compound, such that the emulsion paint compound, when applied to a surface, such as a wall, releases a fragrance over an extended period of time after the compound has dried, the period being typically several months.

Household emulsion paints are based on polymer lattices and are generally stabilized by a combination of surfactants and protective colloids. Coalescing solvents may be added to improve film formation, and the pigment is dispersed in the continuous phase with suitable surfactants, additives, and water soluble thickeners.

The dispersion and latex are blended by efficient mixing to form an emulsion paint compound. After application, the dried emulsion paint film retains a degree of sensitivity and porosity. It is the existence of a porous matrix which is exploited by a perfume compound in accordance with the present invention.

A typical emulsion paint compound may comprise a titanium dioxide pigment, a calcium carbonate extender, sodium polyphosphate as a dispersant, sodium carboxymethyl-cellulose as a thickener, a bacteriocide, a coalescing solvent, a film former, an alkaline adjuster and water. The dispersant and thickener hold the pigment in suspension.

In accordance with the method of the present invention, a perfume compound is added to the paint compounds listed above either during, or at the final step of the manufacture. The perfume compound may have an ingredient which dissolves in the continuous phase (mainly water) of the emulsion paint compound, and also an ingredient which combines or is mixed with the discontinuous or globule phase, i.e. the pigment phase, and is held in dispersion by the dispersant, the thickener and the coalescing solvent.

The perfume compound preferably comprises a pluramity of ingredients selected for their odourous and retentive qualities. Highly volatile ingredients are preferably avoided due to their short period of effectiveness and instead combination of, for example, synthetic musks, amber and wood notes are used.

Terpenes are particularly suitable. Due to the quality required, perfumes of natural origin, which tend to be considerably more expensive than synthetic ingredients, are only used in small quantities. To aid dispersion of the perfume compound in the emulsion paint medium, the perfume ingredients may be dissolved in a solvent such as diethylphthalate or benzyl benzoate and specific surface active ingredients are added prior to incorporation in the emulsion paint compound.

Depending on the strength of the perfume ingredients and the required strength of the fragrance, the percentage of perfume compound in the emulsion paint compound may be in the range 0.05 to 20 ,'. Tests have indicated that the perfume frgrance is released both from the emulsion paint compound in its liquid form and after it has dried, the period of detectable release being as long as two years in some cases.

Using the invention, it is possible to mask unpleasant odours during the application of emulsion paint, and, particularly on drying, the perfume remains incorporated in the paint film matrix, being slowly released and thereby acting as an air freshener fragrancing the environment and combating bad and unpleasant odours such as tobacco smoke and pet odours.

One non-limiting example of an emulsion paint formulation for use in the invention is as follows: "Silk" Gloss Emulsion Paint Rutile titanium dioxide 20.00 Pigment Calcium carbonate 7.00 Extender Sodium polyphosphate 1.00 Dispersant Sodium carboxymethyl cellulose 0.30 Thickener Proxel CLR 0.50 Bactericide Antifoam 0.30 Butyl 'Carbitol' acetate 2.00 Coalescing solvent Vinyl acetate/vinyl 'Versate' latex (55 solids) 42.00 Film former Ammonia (0.880) 0.30 Alkalinity control Water 26.87 100.00 Proxel CLR is a solution of 1,2 benzisothiazoline-3-one and an amine in water from ICI Organics Division.

To this is added a perfume compound, for example one of the following two perfume compounds, preferably so that the perfume compound forms 0.05 to 20 ó by weight of the whole compositon.

Lilac Perfume Compound Benzyl acetate 3.00 Petitgrain para 4.50 Terpineol 15.00 Phenyl ethyl alcohol 30.00 C an anga 4.50 Anisic aldehyde 5.00 Methyl anthranilate 2.00 Hydroxy citronellal 7.00 Phenyl acetaldehyde dimethyl acetal 1.00 Cyclamen aldehyde 2.00 Amyl cinnamic aldehyde 10.00 Musk xylene 6.00 Tolu balsam 10.00 100.00 Rose Perfume Compound Citronel lol 18.00 Phenyl Ethyl Alcohol 18.00 Geraniol palmarosa 18.00 Verbena 2.00 I onone 5.00 Clove Oil 1.00 Geranium 14.50 Orris resin 6.00 Musk xylene 4.00 Santal 6.00 Trichlor phenyl methyl carbinyl acetate 4.00 Vetivert 1.50 Coumarin 2.00 100.00

Claims

CLAl: 1. A paint composition including at least one perfume agent.

2. A paint composition according to Claim 1 which is an emulsion.

3. -A paint composition according to Claim 2 in which the perfume agent includes an ingredient which is present in the continuous phase of the emulsion.

4. A paint composition according to Claim 3 in which the perfume agent includes an ingredient which is present in the discontinuous phase of the emulsion.

5. A paint composition according to any preceding claim in which the perfume agent has a low volatility.

6. A paint composition according to any preceding claim in which the perfume agent includes a terpene.

7. A paint composition according to any preceding claim in which the perfume agent is of synthetic origin.

8. A paint composition according to any preceding claim in which the perfume agent is dissolved in an organic solvent.

9. A perfume agent according to Claim 8 in which the organic solvent is dieylphthalate or benzyl benzoate.

10. A paint composition according to any preceding claim in which the perfume agent includes a surface active agent.

11. A paint composition according to any one of claims 1 to 10 in which the perfume agent comprises 0.05 to 20% by weight of the paint composition.

12. A paint composition according to any preceding claim in which the perfume agent is (a) and/or (b); (a) Lilac Perfume Agent Benzyl acetate 3.00 Petitgrain para 4.50 Terpineol 15.00 Phenyl ethyl alcohol 30.00 Cananga 4.50 Anisic aldehyde 5.00 methyl anthranilate 2.00 Hydroxy citronellal 7.00 Phenyl acetaldehyde dimethyl acetal 1.00 Cyclamen aldehyde 2.00 Amyl cinnamic aldehyde 10.00 Musk xylene 6.00 Tolu balsam 10.00

100.00 (b) Rose Perfume Agent Citronellol 18.00 Phenyl Ethyl Alcohol 18.00 Geraniol palmarosa 18.00 ~Verbena 2.00 Ionone 5.00 Clove Oil 1.0 Geranium 14.50 Orris resin 6.00 Mlisk xylene 4.00 Santal 6.00 Trichlor phenyl methyl carbinyl acetate 4.00 Vetivert 1.50 Coumarin 2.00

100.00 13. An emulsion paint composition according to any one of Claims 2 to 12 which comprises ingredients selected from a pigment; an extender; a dispersant; a thickener; a bacteriocide; a coalescing solvent; a film former; an alkalinity adjuster; and water.

14. An emulsion paint composition according to Claim 13 in which the perfume agent is added during the final stage of manufacture. lj. A film of paint comprising a porous matrix swithin which a perfume agent is releasably retained.

16. A paint composition substantially as described herein.