Abradable Dimensionally Stable Preparation Containing Platelet-Shaped Particles

Abstract

The invention relates to a dimensionally stable preparation which can be abraded on flat materials, containing a translucent water-based polymer-containing carrier composition and platelet-shaped solid particles. The platelet-shaped solid particles have an average maximum diameter ranging from 2 to 40 m and are contained in the preparation in a proportion by volume specified by the selected particle size in order to achieve a sheen which is clearly perceptible to the human eye while simultaneously having good abrasion properties. In a sub-aspect of the invention, the preparations according to the invention further have adhesive properties such that the abraded film is best suited for securing flat decorative elements or generally for adhering flat porous materials.

Claims

1. A water-based, dimensionally stable preparation comprising a translucent carrier composition containing builder substances selected from C.sub.12 to C.sub.22 fatty acids and/or salts thereof in an amount of overall less than 15 wt. % on the basis of the carrier composition and a plurality of flake-shaped solid particles, wherein the flake-shaped solid particles have an average largest particle diameter in the range of from 2 to 40 m, and the dimensionless product of the particulate flake-shaped solid component in percentage by volume on the basis of the preparation and the average largest particle diameter in micrometers is between 5 and 20.

2. The preparation according to claim 1, wherein the flake-shaped solid particles consist at least in part of a layered inorganic material that preferably has a refractive index that is higher than that of the carrier composition by a factor of at least 1.4.

3. The preparation according to claim 2, wherein the flake-shaped solid particles have a layer structure in which the layered inorganic material is bordered by two adjacent plastics layers which are each translucent.

4. The preparation according to claim 2, wherein the inorganic material is selected from one or more of metallic zinc, metallic copper, metallic aluminum, silicates, iron oxide, titanium oxide, zirconium oxide and aluminum oxide.

5. The preparation according to claim 2, wherein the flake-shaped solid particles have a layer structure in which the layered inorganic material is bordered by two adjacent plastics layers which are each translucent and each the plastic layer independently consists of polyethylene terephthalate, polyethylene, polypropylene or polycarbonate.

6. The preparation according to claim 1, wherein the translucent carrier composition contains at least 1 wt % builder substances selected from C.sub.12 to C.sub.22 fatty acids and salts thereof, in each case based on the composition.

7. The preparation according to claim 1, wherein the translucent carrier composition contains 1 wt. % to no more than 10 wt. %, builder substances selected from C.sub.12 to C.sub.22 fatty acids and salts thereof, in each case based on the composition.

8. The preparation according to claim 1, wherein the salts of C.sub.12 to C.sub.22 fatty acids are selected from sodium, potassium and/or calcium salts.

9. The preparation according to claim 1, wherein the translucent carrier composition contains at least 20 wt. % water on the basis of the carrier composition.

10. The preparation according to claim 1, wherein the carrier composition has a pH of at least 9 to no more than 12.

11. The preparation according to claim 1, wherein the carrier composition contains, at least 20 wt. % starch ethers on the basis of the carrier composition, said starch ethers having, as a 40 wt. % aqueous solution at 20 C., a viscosity of less than 200,000 mPas.

12. The preparation according to claim 11, wherein the carrier composition contains at least 10 wt. % saccharose on the basis of the carrier composition.

13. The preparation according to one or more of the preceding claims, wherein the carrier composition contains: a) 3-10 wt. % C.sub.12 to C.sub.22 fatty acids and salts thereof; b) 20-50 wt. % starch ethers; c) 10-30 wt. % saccharose; and d) at least 30 wt. % water, in each case based on the carrier composition.

14. The preparation according to claim 1, consisting of the carrier composition and the plurality of flake-shaped solid particles; wherein the carrier composition consists of: a) 3-10 wt. % C.sub.12 to C.sub.22 fatty acids and salts thereof; b) 20-50 wt. % starch ethers; c) 10-30 wt. % saccharose; and d) at least 30 wt. % water, in each case based on the carrier composition.

Description

EMBODIMENTS

[0034] Cylindrical, dimensionally stable preparations having a 2 cm.sup.2 base and a mass of 10 grams, based on a carrier composition formulation (Table 1) containing varying amounts of glitter particles, were prepared according to Table 2 and assessed with regard to their rub-off properties and the occurrence of a glitter effect in a lit room (1,200 lumen; 3,300 K, distance from the light source to the sample: approx. 2 m) as a film that had been rubbed off on paper having a weight per unit area of g/m.sup.2. The film was rubbed off over a length of 10 cm at a contact pressure of 5 N/cm.sup.2 at angle of inclination of 10 in relation to the surface of the paper. The glitter particles consist of a pulverized polyethylene terephthalate film composite which has a varying particle size and in which the layered inorganic material having a high refractive index is inserted.

TABLE-US-00001 TABLE 1 Carrier composition formulation Compound Amount/wt. % Fatty acid C.sub.14-16 5.6 Starch ether 23.9 Saccharose 20 Water 47

[0035] It is clear that good rub-off properties and an easily visible optical glitter effect only occur simultaneously in a very narrow window on the basis of particle size and proportion by volume, and therefore the desired property profile is only achieved for preparations according to the invention.

TABLE-US-00002 TABLE 2 Preparations containing flake-shaped glitter particles Glitter effect.sup.2 in the in the No. Size*/m Vol. % Rub-off.sup.1 film marker V1 62 2 1 1 2 V2 0.7 2 1 1 V3 15 2 3 4 4 E1 0.7 4 4 4 E2 8 2 5 4 4 E3 0.7 5 3 4 E4 4 2 5 2 3 V4 0.7 5 1 1 *average largest particle diameter determined for 50 individual particles in a sample of the loose bulk of the glitter flakes (Geotec/Geocrystal C R/R 008 HEX 001) .sup.15 uniform film; no lumps .sup.14 substantially uniform film; no lumps .sup.13 substantially uniform film; slight lump formation 2 considerable lump formation 1 severe lump formation .sup.24 clearly visible 3 visible 2 distinguishable 1 hardly visible