WO2012072828A1 - Deodorising latex foam and production method thereof - Google Patents
Deodorising latex foam and production method thereof Download PDFInfo
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- WO2012072828A1 WO2012072828A1 PCT/ES2010/070695 ES2010070695W WO2012072828A1 WO 2012072828 A1 WO2012072828 A1 WO 2012072828A1 ES 2010070695 W ES2010070695 W ES 2010070695W WO 2012072828 A1 WO2012072828 A1 WO 2012072828A1
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B1/00—Footwear characterised by the material
- A43B1/0045—Footwear characterised by the material made at least partially of deodorant means
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B1/00—Footwear characterised by the material
- A43B1/10—Footwear characterised by the material made of rubber
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B1/00—Footwear characterised by the material
- A43B1/14—Footwear characterised by the material made of plastics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
Definitions
- the present invention relates to a latex foam with permanent deodorant characteristics, and its manufacturing process.
- Latex foam is used in many applications, one of them being shoe insoles. To avoid the bad odors derived from its use and obtain an antiseptic effect, alum can be added in its manufacture.
- the known manufacturing process of vulcanized latex foam laminates begins with the manufacture of a liquid mixture of different components that are added in a specific order, set forth below. Said mixture is foamed mechanically and applied with hose on a support at the beginning of the production line, just before the scraper that determines the thickness of the latex foam sheet. The application is carried out with horizontal movements that cover the production width, holding the hose in a mechanical arm that performs said movement. It has been tried incorporate at this time, by gravity, in the foamed wet mixture, potassium alum crystals of deodorant characteristics, falling from a reservoir attached next to the mouth of the hose.
- the alum crystals are mixed with the wet foam taking advantage of the flow itself generated by its dynamic application through horizontal movements as well as by the advance of the support on which it falls.
- a process of destabilization thereof begins.
- the foamed mixture begins to dry, breaking its structure and appearing large air bubbles. Subsequently, coagulation and total foam collapse occur, making it unusable for the production process. It should be taken into account that the time in which the destabilization process takes place depends mainly on the particle size of the potassium alum crystals and their concentration with respect to the wet latex foam mixture.
- the destabilizing effect of potassium alum in contact with a mixture of wet latex foam is mainly due to its high water absorption capacity and its acidic character in aqueous solution, which makes it a coagulant of the latex.
- the high water absorption capacity of alum produces negative effects both in the foamed mixture and in the latex present in it.
- the potassium alum absorbs part of the water present in the walls of the bubbles that make up the structure of the wet foam, causing them to rupture and diffusing the air occluded in them, which leads to a subsequent destabilization and collapse after a certain time.
- the latex being a colloidal dispersion of a polymeric substance in an aqueous medium (latex emulsion)
- the absorption capacity of potassium alum affects the stability of said colloidal system since it alters the dispersion medium (in this case water) of said emulsion, causing coagulation of the latex.
- the invention achieves the attenuation of the destabilizing effects that the addition of potassium alum crystals (KAI (SO 4 ) 2 .12H 2 O) entails on a mixture of wet latex foam by adding a series of additives to the formulation of The original wet mix:
- Said additives will be incorporated into the original wet mix during the manufacturing process, together with the rest of the components and before the addition of the potassium alum crystals.
- the pH of the original wet mix will not always be exactly the same, so the amount of Ammoniacal solution added will be the one necessary to increase the pH of the liquid mixture to a value greater than or equal to pH 11.5.
- the ammonium hydroxide added to the mixture will react with the sulfuric acid formed by the dissolution of the potassium alum crystals, generating the ammonium sulfate salt and water according to equation (4). In this way, partial neutralization of the acid effect provided by potassium alum crystals in an aqueous medium is achieved.
- the ammonium hydroxide will be applied in 25% solution.
- the emulsifier is an anionic active agent that allows the colloidal dispersion of the latex in the aqueous dispersion medium to be stable for a longer time, thus attenuating the drying effect of the potassium alum crystals on the dispersion medium.
- the anionic active agent will be chosen from group consisting of Sodium N-acyl methyl taurate, n-lauryl sodium sarcocinate, and sodium alkylamido polypeptidate and combinations thereof.
- composition of the final formula of the liquid mixture prior to foaming, once the stabilizing additives are incorporated, would be that shown in Table 1.
- concentration is given in phr (per hundred parts of dry latex).
- aromatic oils can be added in two moments of the mixture to a total value of 1 phr. Subsequently, in the foamed wet mixture, potassium alum condensals are added in a proportion of 1-50 phr.
Abstract
The following specific steps are added to a conventional method for producing latex foam: a) the addition of between 10 and 50% of an ammoniacal solution NH4OH in order to increase the pH of the mixture to pH>11.5, b) the addition of between 0.1 and 4 phr of an active anionic agent as an emulsifier, c) and the addition of between 1 and 50 phr of potassium alum crystals (KAI(S04) 2-12H20) to the wet foamed mixture. Advantageously, the active anionic agent is selected from the group consisting of sodium N-acyl methyl taurate, sodium n-lauroyl sarcosinate, and sodium alkylamide polypeptidate, and the combinations thereof. In this way, the destabilising effects caused by the addition of the potassium alum crystals to the foamed mixture are attenuated.
Description
ESPUMA DE LATEX DESODORANTE Y SU PROCEDIMIENTO DE LATEX DEODORANT FOAM AND ITS PROCEDURE
FABRICACIÓN MANUFACTURING
La presente invención se refiere a una espuma de látex con características desodorantes permanentes, y su procedimiento de fabricación. The present invention relates to a latex foam with permanent deodorant characteristics, and its manufacturing process.
Antecedentes de la invención- Background of the invention-
La espuma de látex se emplea en multitud de aplicaciones, siendo una de ellas las plantillas para calzado. Para evitar los malos olores derivados de su uso y obtener un efecto antiséptico se puede añadir alumbre en su fabricación. Latex foam is used in many applications, one of them being shoe insoles. To avoid the bad odors derived from its use and obtain an antiseptic effect, alum can be added in its manufacture.
Normalmente este alumbre se añade como polvo encima de las plantillas ya conformadas, pero el efecto del mismo se va perdiendo con el uso. Se ha intentado incorporar el alumbre a la espuma de látex durante su fabricación, encontrándose que esta se degrada, perdiendo sus características de elasticidad y flexibilidad. Normally this alum is added as a powder on top of the already formed templates, but the effect of it is lost with use. An attempt has been made to incorporate alum into the latex foam during its manufacture, finding that it degrades, losing its elasticity and flexibility characteristics.
El proceso de fabricación conocido de laminados de espuma de látex vulcanizado comienza con la fabricación de una mezcla liquida de diferentes componentes que son adicionados en un orden concreto, expuesto más adelante. Dicha mezcla es espumada mecánicamente y aplicada con manguera sobre un soporte al principio de la línea de producción, justo antes de la rasqueta que determina el espesor de la lámina de espuma de látex. La aplicación se realiza con movimientos horizontales que abarcan el ancho de producción, sujetando la manguera en un brazo mecánico que realiza dicho movimiento. Se ha intentado
incorporar en este momento, por gravedad, en la mezcla húmeda espumada, cristales de alumbre potásico de características desodorantes, cayendo desde un depósito sujeto junto a la boca de la manguera. Los cristales de alumbre se mezclan con la espuma húmeda aprovechando el propio flujo de la misma generado por su aplicación dinámica mediante movimientos horizontales así como por el avance del soporte sobre el que cae. Sin embargo, una vez que los cristales de alumbre entran en contacto con la espuma húmeda, comienza un proceso de desestabilización de la misma. La mezcla espumada empieza a secarse, rompiéndose su estructura y apareciendo grandes burbujas de aire. Posteriormente se produce la coagulación y un colapso total de la espuma, quedando inservible para el proceso productivo. Se debe tener en cuenta que el tiempo en el que transcurre el proceso de desestabilización depende principalmente del tamaño de partícula de los cristales de alumbre potásico y de su concentración respecto a la mezcla de espuma de látex húmeda. The known manufacturing process of vulcanized latex foam laminates begins with the manufacture of a liquid mixture of different components that are added in a specific order, set forth below. Said mixture is foamed mechanically and applied with hose on a support at the beginning of the production line, just before the scraper that determines the thickness of the latex foam sheet. The application is carried out with horizontal movements that cover the production width, holding the hose in a mechanical arm that performs said movement. It has been tried incorporate at this time, by gravity, in the foamed wet mixture, potassium alum crystals of deodorant characteristics, falling from a reservoir attached next to the mouth of the hose. The alum crystals are mixed with the wet foam taking advantage of the flow itself generated by its dynamic application through horizontal movements as well as by the advance of the support on which it falls. However, once alum crystals come into contact with the wet foam, a process of destabilization thereof begins. The foamed mixture begins to dry, breaking its structure and appearing large air bubbles. Subsequently, coagulation and total foam collapse occur, making it unusable for the production process. It should be taken into account that the time in which the destabilization process takes place depends mainly on the particle size of the potassium alum crystals and their concentration with respect to the wet latex foam mixture.
El efecto desestabilizador del alumbre potásico en contacto con una mezcla de espuma de látex húmeda es debido principalmente a su elevada capacidad de absorción de agua y a su carácter ácido en disolución acuosa, lo que le convierte en un coagulante del látex. The destabilizing effect of potassium alum in contact with a mixture of wet latex foam is mainly due to its high water absorption capacity and its acidic character in aqueous solution, which makes it a coagulant of the latex.
Por un lado, la gran capacidad de absorción de agua que presenta el alumbre produce efectos negativos tanto en la mezcla espumada como en el látex presente en ella. El alumbre potásico absorbe parte del agua presente en las paredes de las burbujas que componen la estructura de la espuma húmeda, provocando la rotura de las mismas y la difusión del aire ocluido en ellas, lo que conlleva una posterior desestabilización y colapso tras un tiempo determinado. Además, al ser el látex una dispersión coloidal de una
sustancia polimérica en un medio acuoso (emulsión de látex), la capacidad de absorción del alumbre potásico afecta a la estabilidad de dicho sistema coloidal ya que altera el medio de dispersión (en este caso agua) de dicha emulsión, provocando la coagulación del látex. On the one hand, the high water absorption capacity of alum produces negative effects both in the foamed mixture and in the latex present in it. The potassium alum absorbs part of the water present in the walls of the bubbles that make up the structure of the wet foam, causing them to rupture and diffusing the air occluded in them, which leads to a subsequent destabilization and collapse after a certain time. . In addition, the latex being a colloidal dispersion of a polymeric substance in an aqueous medium (latex emulsion), the absorption capacity of potassium alum affects the stability of said colloidal system since it alters the dispersion medium (in this case water) of said emulsion, causing coagulation of the latex.
Por otro lado está el carácter ácido del alumbre potásico, incompatible con el látex. Los cristales de alumbre potásico se disuelven parcialmente al entrar en contacto con el agua presente en la mezcla de espuma húmeda, disociándose en diferentes compuestos según la ecuación general (1). El AI(OH)3 generado precipita, mientras que el H2SO4 y el KOH quedan en disolución liberando iones H+ y OH", siendo mayor la presencia de protones H+ según ecuaciones (2) y (3). On the other hand is the acidic character of potassium alum, incompatible with latex. Potassium alum crystals partially dissolve upon contact with the water present in the wet foam mixture, dissociating into different compounds according to general equation (1). The AI (OH) 3 precipitates generated, while the H 2 SO 4 and KOH solution are releasing H + and OH- ions ", with a greater presence of proton H + according to equations (2) and (3).
KAI(S04)2- 12H20(s)→ AI(OH)3(s) + 2H2S04(aq) + KOH(aq) + 8H20(liq) (1) 2H2S04(aq) → 2H+(aq) + 2S04 "2 (aq) (2) KOH(aq)→ K+(aq) + OH (aq) (3) KAI (S0 4 ) 2 - 12H 2 0 (s) → AI (OH) 3 (s) + 2H 2 S0 4 (aq) + KOH (aq) + 8H 2 0 (liq) (1) 2H 2 S0 4 ( aq) → 2H + (aq) + 2S0 4 "2 (aq) (2) KOH (aq) → K + (aq) + OH (aq) (3)
Esta mayor proporción de protones H+ hace disminuir el pH de la espuma, lo que puede provocar la coagulación del látex presente, inestable a pH inferiores a 10.5 aproximadamente. This higher proportion of protons H + decreases the pH of the foam, which can cause coagulation of the present latex, unstable at pH below approximately 10.5.
En consecuencia, es un objetivo de la presente invención el de disminuir el efecto desestabilizador del alumbre potásico con el fin de aumentar el periodo de tiempo en el cual la mezcla de
espuma de látex húmeda permanece estable antes de su paso por la rasqueta, al principio de la línea de producción. Accordingly, it is an objective of the present invention to decrease the destabilizing effect of potassium alum in order to increase the period of time in which the mixture of Wet latex foam remains stable before it passes through the scraper, at the beginning of the production line.
Descripción de la invención Description of the invention
La invención consigue la atenuación de los efectos desestabilizadores que conlleva la adición de cristales de alumbre potásico (KAI(SO4) 2.12H2O) sobre una mezcla de espuma de látex húmeda mediante la adición de una serie de aditivos a la formulación de la mezcla húmeda original : The invention achieves the attenuation of the destabilizing effects that the addition of potassium alum crystals (KAI (SO 4 ) 2 .12H 2 O) entails on a mixture of wet latex foam by adding a series of additives to the formulation of The original wet mix:
a) Adición de una disolución amoniacal NH4OH al 10 a 50%, para aumentar el pH de la mezcla hasta pH> 11.5. b) Adición de un agente activo aniónico como emulsionante, lo que tendrá un efecto estabilizador sobre la espuma de látex húmeda. a) Addition of a 10 to 50% NH 4 OH ammoniacal solution, to increase the pH of the mixture to pH> 11.5. b) Addition of an anionic active agent as an emulsifier, which will have a stabilizing effect on the wet latex foam.
Dichos aditivos se incorporarán a la mezcla húmeda original durante el proceso de fabricación de la misma, junto al resto de componentes y antes de la adición de los cristales de alumbre potásico. Said additives will be incorporated into the original wet mix during the manufacturing process, together with the rest of the components and before the addition of the potassium alum crystals.
Descripción detallada de una realización preferida Detailed description of a preferred embodiment
A continuación se detalla la proporción empleada de cada aditivo en una realización de la invención, y se describen sus efectos
sobre la estabilidad de la espuma de látex húmeda con cristales de alumbre potásico incorporados: The proportion of each additive used in an embodiment of the invention is detailed below, and its effects are described About the stability of wet latex foam with built-in potassium alum crystals:
a) Teniendo en cuenta que las materias primas empleadas en la formulación no tienen un pH constante, sino que se mueven en un pequeño margen de tolerancia, el pH de la mezcla húmeda original no siempre será exactamente el mismo, por lo que la cantidad de disolución amoniacal añadida será la necesaria para aumentar el pH de la mezcla líquida hasta un valor superior o igual a pH 11.5. El hidróxido de amonio añadido a la mezcla reaccionará con el ácido sulfúrico formado por la disolución de los cristales de alumbre potásico, generando la sal sulfato de amonio y agua según ecuación (4). De esta forma se consigue la neutralización parcial del efecto ácido que proporcionan los cristales de alumbre potásico en un medio acuoso. Ventajosamente el hidróxido de amonio se aplicará en disolución al 25%. a) Taking into account that the raw materials used in the formulation do not have a constant pH, but move in a small tolerance range, the pH of the original wet mix will not always be exactly the same, so the amount of Ammoniacal solution added will be the one necessary to increase the pH of the liquid mixture to a value greater than or equal to pH 11.5. The ammonium hydroxide added to the mixture will react with the sulfuric acid formed by the dissolution of the potassium alum crystals, generating the ammonium sulfate salt and water according to equation (4). In this way, partial neutralization of the acid effect provided by potassium alum crystals in an aqueous medium is achieved. Advantageously the ammonium hydroxide will be applied in 25% solution.
2NH4OH + H2SO4→ (NH4)2SO4 + 2H2O 2NH 4 OH + H2SO4 → (NH 4 ) 2 SO 4 + 2H2O
(4) (4)
b) Se incorpora a la mezcla de látex húmeda un máximo de 0.5% de emulsionante sobre la masa total húmeda. En este caso el emulsionante es un agente activo aniónico que permite mantener estable por más tiempo la dispersión coloidal del látex en el medio de dispersión acuoso, atenuando así el efecto secante que tienen los cristales de alumbre potásico sobre el medio de dispersión. Ventajosamente el agente activo aniónico se elegirá del
grupo constituido por Sodium N-acyl methyl taurate, n-lauril sarcocinato de sodio, y alquilamido polipeptidato de sodio y sus combinaciones. b) A maximum of 0.5% emulsifier is added to the wet latex mixture over the total wet mass. In this case, the emulsifier is an anionic active agent that allows the colloidal dispersion of the latex in the aqueous dispersion medium to be stable for a longer time, thus attenuating the drying effect of the potassium alum crystals on the dispersion medium. Advantageously the anionic active agent will be chosen from group consisting of Sodium N-acyl methyl taurate, n-lauryl sodium sarcocinate, and sodium alkylamido polypeptidate and combinations thereof.
La composición de la formula final de la mezcla líquida previa a la espumación, una vez incorporados los aditivos estabilizantes, sería la mostrada en la Tabla 1. La concentración se da en phr (por cada cien partes de látex seco). The composition of the final formula of the liquid mixture prior to foaming, once the stabilizing additives are incorporated, would be that shown in Table 1. The concentration is given in phr (per hundred parts of dry latex).
Tabla 1. Composición final de la mezcla húmeda y orden de incorporación. Table 1. Final composition of the wet mixture and order of incorporation.
Componente Sustancia química phr Chemical substance component phr
Látex SBR Emulsión de estireno y 1-3 butadieno 100 SBR latex Styrene emulsion and 1-3 butadiene 100
Jabón di-Sodio N-Talloyl succionamato 1-6 Di-Sodium soap N-Talloyl succionamate 1-6
Pirofosfato de Pyrophosphate
Pirofosfato tetra potásico 0,1-1,5 potasio Tetra potassium pyrophosphate 0.1-1.5 potassium
Hidróxido de Hydroxide
Hidróxido de potasio 0,1-2 potasio Potassium Hydroxide 0.1-2 Potassium
Silicona Hexametildisiloxano 0-1 Silicone Hexamethyldisiloxane 0-1
Parafina Dispersión acuosa de parafina 0-2 Paraffin Aqueous dispersion of paraffin 0-2
Mezcla de sustancias aromáticas Blend of aromatic substances
Aceite aromático 0-0,5 sintéticas y naturales en alcohol
Componente Sustancia química phr 0-0.5 synthetic and natural aromatic oil in alcohol Chemical substance component phr
0.01 etílico 0.01 ethyl
Disolución Dissolution
Hidróxido de amonio 0,1-15 amoniacal 0.1-15 ammoniacal ammonium hydroxide
Emulsionante Agente activo anionico 0,1-4 Emulsifier Anionic active agent 0,1-4
Sistema System
4,5-12 vulcanizante 4,5-12 vulcanizer
Mezcla de sustancias aromáticas Blend of aromatic substances
Aceite aromático sintéticas y naturales en alcohol 0-0,5 Synthetic and natural aromatic oil in alcohol 0-0.5
0.01 etílico 0.01 ethyl
0,01-0.01-
Blanqueante Sulfosilicatos de aluminio y sodio Whitening Sulfosilicates of aluminum and sodium
0,1 0.1
Carga Carbonato cálcico 30-200 Calcium carbonate charge 30-200
Caolín Silicato de aluminio hidratado 0-20 0-20 Hydrated aluminum silicate kaolin
Espesante Celulosa 0.3 Cellulose Thickener 0.3
Para esta composición es importante mantener el orden correcto de adición de los distintos componentes con objeto de evitar problemas de estabilidad y dispersión. El orden de adición es el mostrado en la Tabla 1. For this composition it is important to maintain the correct order of addition of the different components in order to avoid problems of stability and dispersion. The order of addition is shown in Table 1.
Como puede observarse, los aceites aromáticos pueden llegar a añadirse en dos momentos de la mezcla hasta un valor total de 1 phr.
Posteriormente, en la mezcla húmeda espumada, se añadenstales de alumbre potásico en proporción de 1-50 phr.
As can be seen, aromatic oils can be added in two moments of the mixture to a total value of 1 phr. Subsequently, in the foamed wet mixture, potassium alum condensals are added in a proportion of 1-50 phr.
Claims
1.- Espuma de látex desodorante caracterizada por presentar la siguiente composición : 1.- Deodorant latex foam characterized by presenting the following composition:
Componente Sustancia química phr Chemical substance component phr
Látex SBR Emulsión de estireno y 1-3 butadieno 100 SBR latex Styrene emulsion and 1-3 butadiene 100
Jabón di-Sodio N-Talloyl succionamato 1-6 Di-Sodium soap N-Talloyl succionamate 1-6
Pirofosfato de Pyrophosphate
Pirofosfato tetra potásico 0,1-1,5 potasio Tetra potassium pyrophosphate 0.1-1.5 potassium
Hidróxido de Hydroxide
Hidróxido de potasio 0,1-2 potasio Potassium Hydroxide 0.1-2 Potassium
Silicona Hexametildisiloxano 0-1 Silicone Hexamethyldisiloxane 0-1
Parafina Dispersión acuosa de parafina 0-2 Paraffin Aqueous dispersion of paraffin 0-2
Mezcla de sustancias aromáticas Blend of aromatic substances
Aceite aromático sintéticas y naturales en alcohol 0-1 Synthetic and natural aromatic oil in alcohol 0-1
O.Oletílico O. Oletilic
Disolución Dissolution
Hidróxido de amonio 0,1-15 amoniacal 0.1-15 ammoniacal ammonium hydroxide
Emulsionante Agente activo anionico 0,1-4 Emulsifier Anionic active agent 0,1-4
Sistema System
4,5-12 vulcanizante Componente Sustancia química phr 4,5-12 vulcanizer Chemical substance component phr
Blanqueante Sulfosilicatos de aluminio y sodio 0,01-0,1 Bleaching Sulfosilicates of aluminum and sodium 0,01-0,1
Carga Carbonato cálcico 30-200 Calcium carbonate charge 30-200
Caolín Silicato de aluminio hidratado 0-20 0-20 Hydrated aluminum silicate kaolin
Espesante Celulosa 0.3 Cellulose Thickener 0.3
Sulfato doble de aluminio y potasio Aluminum and potassium double sulfate
Alumbre 1-50 hidratado Alum 1-50 hydrated
2.- Espuma de látex desodorante de acuerdo con la reivindicación 1, caracterizada porque el agente activo aniónico se elige del grupo constituido por el sodium N-acyl methyl taurate, el n-lauril sarcocinato de sodio, y el alquilamido polipeptidato de sodio, y sus combinaciones. 2. Deodorant latex foam according to claim 1, characterized in that the anionic active agent is selected from the group consisting of sodium N-acyl methyl taurate, sodium n-lauryl sarcocinate, and sodium alkylamido polypeptidate, and your combinations
3- Espuma de látex desodorante de acuerdo con la reivindicación 1, caracterizada porque el aceite aromático es una mezcla de aceites esenciales a base de hidrocarburos terpénicos, terpinemo y origanol, n isopulegol, y cítricos. 3- Deodorant latex foam according to claim 1, characterized in that the aromatic oil is a mixture of essential oils based on terpenic hydrocarbons, terpinemo and origanol, n isopulegol, and citrus.
4.- Procedimiento de fabricación de espuma de látex desodorante caracterizado por comprender, además del proceso convencional para cualquier espuma de látex, las siguientes etapas: a) Adición de una disolución amoniacal NH4OH al 10 a 50%, para aumentar el pH de la mezcla hasta pH> 11.5. b) Adición de un agente activo aniónico como emulsionante, en proporción de 0,1 a 4 phr. c) Adición en la mezcla húmeda espumada de cristales de alumbre potásico (KAI(SO4) 2.12H2O) en proporción de 1 a 50 phr. 4.- Procedure for manufacturing latex deodorant foam characterized by comprising, in addition to the conventional process for any latex foam, the following steps: a) Addition of a 10 to 50% NH 4 OH ammoniacal solution, to increase the pH of the mixture to pH> 11.5. b) Addition of an anionic active agent as an emulsifier, in a proportion of 0.1 to 4 phr. c) Addition in the foamed wet mixture of potassium alum crystals (KAI (SO 4 ) 2 .12H 2 O) in a proportion of 1 to 50 phr.
5.- Procedimiento de fabricación de espuma de látex desodorante de acuerdo con la reivindicación 4, caracterizado porque el agente activo aniónico se elige del grupo constituido por el sodium N-acyl methyl taurate, el n-lauril sarcocinato de sodio, y el alquilamido polipeptidato de sodio, y sus combinaciones. 5. Method of manufacturing latex deodorant foam according to claim 4, characterized in that the anionic active agent is selected from the group consisting of sodium N-acyl methyl taurate, sodium n-lauryl sarcocinate, and alkylamido polypeptidate of sodium, and their combinations.
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/ES2010/070695 WO2012072828A1 (en) | 2010-10-26 | 2010-10-26 | Deodorising latex foam and production method thereof |
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| PCT/ES2010/070695 WO2012072828A1 (en) | 2010-10-26 | 2010-10-26 | Deodorising latex foam and production method thereof |
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| Country | Link |
|---|---|
| WO (1) | WO2012072828A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4185402A (en) * | 1977-11-02 | 1980-01-29 | Scholl, Inc. | Deodorizing insole |
| US4192086A (en) * | 1978-09-29 | 1980-03-11 | Scholl, Inc. | Deodorizing insole |
| US4257176A (en) * | 1979-03-09 | 1981-03-24 | Scholl, Inc. | Insole with material released under foot loads |
| WO1996013994A1 (en) * | 1994-11-08 | 1996-05-17 | Combe Incorporated | Odor reducing insole with odor reactant particles |
| US20020066209A1 (en) * | 2000-08-10 | 2002-06-06 | Cheryl Steed | Disposable shoe insert |
-
2010
- 2010-10-26 WO PCT/ES2010/070695 patent/WO2012072828A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4185402A (en) * | 1977-11-02 | 1980-01-29 | Scholl, Inc. | Deodorizing insole |
| US4192086A (en) * | 1978-09-29 | 1980-03-11 | Scholl, Inc. | Deodorizing insole |
| US4257176A (en) * | 1979-03-09 | 1981-03-24 | Scholl, Inc. | Insole with material released under foot loads |
| WO1996013994A1 (en) * | 1994-11-08 | 1996-05-17 | Combe Incorporated | Odor reducing insole with odor reactant particles |
| US20020066209A1 (en) * | 2000-08-10 | 2002-06-06 | Cheryl Steed | Disposable shoe insert |
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