Aqueous foam generating system and method for generating foam having long wet-to-dry transition times
First Claim
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1. An aqueous foam generating system comprising:
- a first solution of particles of a carbomer resin encapsulated within an anhydrous, non-polar, organic hydrophobic surfactant;
a second solution of a neutralizing liquid having a ph in the range of approximately 5-11, said second solution being capable of ionizing said carbomer resin;
an eductor having a primary input, a secondary input and an output coupled to said primary input and said secondary input, said secondary input being coupled to said first solution;
a pump for pumping said second solution into said primary input of said eductor, wherein a volumetric portion of said first solution is drawn into said second solution being pumped into said primary output, and wherein a mixture of said first solution and said second solution exits said eductor at said output; and
an aerator coupled to said output of said eductor for spraying said mixture wherein an aqueous foam is formed by said mixture so-sprayed.
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Abstract
An aqueous foam generating system and method are provided. A first solution has particles of a carbomer resin encapsulated within an anhydrous, non-polar, organic hydrophobic surfactant. A second solution, capable of ionizing the carbomer resin, is pumped into an eductor which draws a volumetric portion of the first solution to form a mixture that is sprayed from an aerator to form an aqueous foam having long wet-to-dry transition times.
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Citations
16 Claims
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1. An aqueous foam generating system comprising:
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a first solution of particles of a carbomer resin encapsulated within an anhydrous, non-polar, organic hydrophobic surfactant;
a second solution of a neutralizing liquid having a ph in the range of approximately 5-11, said second solution being capable of ionizing said carbomer resin;
an eductor having a primary input, a secondary input and an output coupled to said primary input and said secondary input, said secondary input being coupled to said first solution;
a pump for pumping said second solution into said primary input of said eductor, wherein a volumetric portion of said first solution is drawn into said second solution being pumped into said primary output, and wherein a mixture of said first solution and said second solution exits said eductor at said output; and
an aerator coupled to said output of said eductor for spraying said mixture wherein an aqueous foam is formed by said mixture so-sprayed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of making an aqueous foam, comprising the steps of:
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providing a first solution of particles of a carbomer resin encapsulated within an anhydrous, non-polar, organic hydrophobic surfactant;
providing a second solution of a neutralizing liquid having a ph in the range of approximately 5-11, said second solution being capable of ionizing said carbomer resin;
pumping said second solution through an eductor that is coupled to said first solution, wherein a volumetric portion of said first solution is drawn into said second solution, and wherein a mixture of said first solution and said second solution exits said eductor; and
passing said mixture through an aerator wherein said mixture is sprayed therefrom to form an aqueous foam. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification