BR-102024017897-A2 - Cosmetic composition of liquid lipstick and its respective manufacturing process.

Abstract

This invention patent belongs to the technical field of cosmetics and/or similar preparations, characterized by its composition. More specifically, it presents a long-lasting, non-sticky matte liquid lipstick cosmetic composition and its respective production process, whose composition is essentially composed of specific proportions of Isododecane and Hexyl/Succinyl Dimethicone Crosspolymer, among others.

Inventors

• ANA CAROLINA FIORANTI FIORE WESGUERBER RIBEIRO
• REBECCA LUCILA LEMES GRACIOLLI
• MIKHAEL DANTAS GONÇALVES
• JHONATA MEGURO
• ÍRIA GABRIELLA RIBEIRO DE MORAIS CABRAL
• PATRÍCIA DELLA COLETTA SCHOLZ

Assignees

• BOTICA COMERCIAL FARMACÊUTICA LTDA

Dates

Publication Date

20260317

Application Date

20240830

Claims (3)

1. 1.) “LIQUID LIPSTICK COSMETIC COMPOSITION”, characterized by comprising, by mass percentage: 31.00% to 36.00%, preferably 33.10%, of solvent, preferably Isododecane; 17.00% to 21.50%, preferably 20.30%, of emollients, preferably: 16.00% to 20.00%, preferably 18.9875%, of Dimethicone; and 1.00% to 1.50%, preferably 1.20%, of Dimethiconol; 9.00% to 14.00%, preferably 12.00%, of Pigment; 10.00% to 17.00%, preferably 13%, of conditioners, of which preferably: 6.00% to 10.00%, preferably 8.00%, of Caprylyl Methicone; and 4.00% to 7.00%, preferably 5.00%, of Nylon-611/Dimethicone Copolymer; 9.90% to 12.20%, preferably 10.95%, of film formers, of which preferably: 6.90% to 7.20%, preferably 7.05%, of Trimethylsiloxysilicate; and 3.00% to 5.00%, preferably 3.90%, of Hexyl/Succinyl Dimethicone Crosspolymer; 2.60% to 4.00%, preferably 3.49%, of viscosity regulators, of which preferably: 1.60% to 2.20%, preferably 1.94%, of D-dimethicone/Vinyl Dimethicone Crosspolymer; and 1.00% to 1.80%, preferably 1.55%, of Dimethicone Crosspolymer; 1.00% to 1.50%, preferably 1.20%, of stabilizer, preferably Silica Silylate; and 0.03% to 0.09%, preferably 0.06%, of absorbent, preferably Silicon Dioxide.
2. 2.) “LIQUID LIPSTICK COSMETIC COMPOSITION”, according to claim 1, further characterized by comprising, by mass percentage: 6.10% to 4.80%, preferably 5.25%, of viscosity regulators, of which preferably: 3.80% to 4.50%, preferably 4.00%, of Paraffin; and 1.00% to 1.60%, preferably 1.25%, of Hectorite Disteardimonium; 0.40% to 0.80%, preferably 0.55%, of solvent, preferably Propylene Carbonate; and 0.06% to 0.16%, preferably 0.10%, of antioxidant, preferably Tocopheryl Acetate.
3. 3.) “PROCESS FOR OBTAINING THE COSMETIC COMPOSITION OF LIQUID LIPSTICK”, as defined in claim 2, characterized by comprising the following steps: - adding the ingredients Dimethicone, Dimethiconol, Caprylyl Methicone, Paraffin, Nylon-611/Dimethicone Copolymer and Tocopheryl Acetate to a reactor, and after the addition, maintaining the heating at 90°C to 95°C to melt the ingredients and homogenizing for 10 to 15 minutes; - homogenizing a solution of Isododecane and Trimethylsiloxysilicate until complete solubilization; - reducing the reactor temperature to 50°C to 60°C, adding the solution to the reactor and, after the addition, maintaining agitation for 10 to 15 minutes for complete homogenization of the ingredients; - adding the pigments to the reactor and stirring for at least 15 minutes until complete dispersion of the pigments, and verifying If the pigments are well dispersed; - add Hectorite Disteardimonium, Propylene Carbonate, Hexyl/Succinyl Dimethicone Crosspolymer and Dimethicone Crosspolymer to the reactor, maintain agitation for up to 20 minutes for complete homogenization of the ingredients and, after this period, check if the formulation is uniform; and - add Dimethicone/Vinyl Dimethicone Crosspolymer, Silica Silylate and Silicon Dioxide to the reactor, and maintain homogenization for up to 10 minutes, and at the end of the process, check if the ingredients are well incorporated and if the formulation is uniform.

Description

[001] This invention patent belongs to the technical field of cosmetics and/or similar preparations, characterized by its composition, more specifically it presents a long-lasting matte liquid lipstick cosmetic composition without tack (stickiness) and its respective production process, whose composition is essentially composed of specific proportions of Isododecane and Hexyl/Succinyl Dimethicone Crosspolymer, among others. STATE OF THE ART [002] To obtain a lipstick that lasts on the lips for many hours, it is necessary that it resists external aggressors, such as the ingestion of liquids, food, and other factors such as friction, sweat, sebum, among others, and this attribute is obtained through the use of film-forming raw materials. [003] In the state of the art there are several long-lasting liquid lipsticks, some of which have tackiness (called stickiness) until the moment of drying. [004] Among the patent documents, for example, WO23041343 describes a composition for the care and/or manufacture of keratinous materials, in particular for skin, comprising at least one silicone elastomer containing carboxylic acid functions; and at least one copolymer based on silicone resin and Dimethiconol type silicone. In particular, in one embodiment, the composition comprises a silicone elastomer containing carboxylic acid functions, this being the Hexyl/Succinyl Dimethicone Crosspolymer. TECHNICAL PROBLEM [005] The durability attributes of lipsticks on the lips, which are obtained through the use of film-forming raw materials, usually cause adverse conditions during use, such as stickiness, cracking, and discomfort during use. [006] Among the long-lasting liquid lipsticks known in the state of the art, those with tackiness cause an unpleasant "sticky" sensation until the drying time, while those without tackiness have less durability. [007] Another difficult attribute to obtain in a comfortable lipstick is resistance to oily components, which are the main offenders of lipstick durability when we ingest food, and the film formers that provide oil resistance usually give the undesirable effect of stickiness. [008] The raw material commonly used in formulations comprising Hexyl/Succinyl Dimethicone Crosspolymer, among other ingredients, as presented in patent document WO23041343, has high resistance to oil and water, as well as a comfortable feel, which is its major advantage over other resins on the market. However, it is a difficult ingredient to work with, due to the difficulty in its incorporation and also because, when used in excess, it can cause crumbling on the lips. [009] Thus, it can be stated that the state of the art does not provide a single-product solution that confers characteristics of greater durability, less cracking and less stickiness, provided by means of specific proportions of Isododecane and Hexyl/Succinyl Dimethicone Crosspolymer, among other components, that guarantees a synergistic effect between specific formulation proportions, to obtain the ideal balance between drying, comfort, and resistance during use, in a single product. TECHNICAL SOLUTION [0010] The main objective of the present invention is to offer an unusual composition of long-lasting liquid lipstick without having a sticky characteristic. [0011] According to the present invention, the proposed composition achieves an unusual effect of providing more than 24 hours of durability without retouching to the liquid lipstick and without stickiness on the lips, even during drying. [0012] The unusual technical effect provided by the invention consists of a precise and detailed combination of ingredients to obtain a formulation that does not result in unwanted crumbling or stickiness, and that offers very high durability and resistance to external factors. [0013] Film formers are known to bring strength benefits to formulations, but a simple mixture of ingredients with this function would not be sufficient to overcome the technical barrier of delivering a formulation that has high durability, comfort, and low stickiness. The solution found involves a combination of polymers, in specific concentrations, so that the synergy between them can deliver the best possible result. BRIEF DESCRIPTION OF THE FIGURES [0014] The description that follows is not limited to the drawings or components mentioned, having as a reference the following illustrations referenced below. [0015] Figure 1A shows an image of the lipstick, according to the present invention, after 6 hours of use after meals. [0016] Figure 1B shows an image of the lipstick, according to the present invention, after 4 hours of use, after meals and physical exercise. [0017] Figure 1C shows an image of the lipstick, according to the present invention, after 24 hours of use, after meals, physical exercise, and 2 showers. No transfer of the lipstick to the pillow during sleep. [0018] Figure 2A shows an example of selecting the total lip area according to the present invention. [0019] Figu