Claims
- 1. A pulverulent composition obtained by mixing and then drying an emulsion, comprising:an emulsion of at least one water-insoluble film-forming polymer prepared from ethylenically unsaturated monomers, at least one main surfactant whose water/surfactant binary phase diagram contains an isotropic phase which is fluid at 25° C. up to a concentration of at least 50% by weight of surfactant, followed by a hexagonal or cubic type rigid liquid crystal phase at higher concentrations which is stable at least up to the drying temperature, and at least one water-soluble compound, wherein the main surfactant is an amphoteric surfactant of the following general formula: wherein R represents an alkyl or alkenyl radical comprising 7 to 22 carbon atoms, R1 represents a hydrogen atom or an alkyl radical comprising 1 to 6 carbon atoms, A represents a (CO) or (OCH2CH2) group, n equals 0 or 1, x equals 2 or 3, y equals 0 to 4, Q represents a radical —R2—COO M with R2 representing an alkyl radical comprising 1 to 6 carbon atoms, M represents H, Na, K or NH4 and B represents H or Q.
- 2. A pulverulent composition according to claim 1, wherein the main surfactant comprises at least two carboxyl groups.
- 3. A pulverulent composition obtained by mixing and then drying an emulsion, comprising:an emulsion of at least one water-insoluble film-forming polymer prepared from ethylenically unsaturated monomers, at least one main surfactant whose water/surfactant binary phase diagram contains an isotropic phase which is fluid at 25° C. up to a concentration of at least 50% by weight of surfactant, followed by a hexagonal or cubic type rigid liquid crystal phase at higher concentrations which is stable at least up to the drying temperature, and at least one water-soluble compound, wherein the water-soluble compound is a polyelectrolyte of an organic nature originating from the polymerization of monomers which have the following general formula: wherein the radicals Ri, which may be identical or different, represent H, CH3, CO2H or (CH2)n—CO2H with n=0 to 4.
- 4. A pulverulent composition according to claim 1, wherein the water-soluble compound is an alkali metal silicate, an alkaline-earth metal silicate, an alkali metal phosphate, an alkaline-earth metal phosphate, urea or sugar.
- 5. A pulverulent composition according to claim 3, wherein the wherein the main surfactant is an amphoteric surfactant of the following general formula: wherein R represents an alkyl or alkenyl radical comprising 7 to 22 carbon atoms, R1 represents a hydrogen atom or an alkyl radical comprising 1 to 6 carbon atoms, A represents a (CO) or (OCH2CH2) group, n equals 0 or 1, x equals 2 or 3, y equals 0 to 4, Q represents a radical —R2—COO M with R2 representing an alkyl radical comprising 1 to 6 carbon atoms, M represents H, Na, K or NH4 and B represents H or Q.
- 6. A pulverulent composition according to claim 1, wherein the content of water-insoluble film-forming polymer is between 40 and 90 parts by weight, the amount of main surfactant is between 1 and 20 parts by weight, and the amount of water-soluble compound is between 7 and 50 parts by weight in the pulverulent composition.
- 7. A pulverulent composition according to claim 3, wherein the content of water-insoluble film-forming polymer is between 40 and 90 parts by weight, the amount of main surfactant is between 1 and 20 parts by weight, and the amount of water-soluble compound is between 7 and 50 parts by weight in the pulverulent composition.
- 8. A pulverulent composition according to claim 1, wherein the weight ratio of the concentrations between the main surfactant and the water-soluble compound is between 20:80 and 90:10.
- 9. A pulverulent composition according to claim 3, wherein the weight ratio of the concentrations between the main surfactant and the water-soluble compound is between 20:80 and 90:10.
Priority Claims (1)
Number |
Date |
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Kind |
95 12588 |
Oct 1995 |
FR |
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Parent Case Info
This application is a continuation application of Ser. No.: 09/051,737, filed on Jul. 24, 1998, now abandoned which is a 371 of PCT/FR96/01639 filed Oct. 21, 1998.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4968350 |
Bindschaedler et al. |
Nov 1990 |
A |
Continuations (1)
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Parent |
09/051737 |
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US |
Child |
09/631333 |
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US |