Abstract:
A dry cleaning system particularly suited for employing supercritical CO2 as the cleaning fluid consisting of a sealable cleaning vessel containing a rotatable drum adapted for holding soiled substrate, a cleaning fluid storage vessel, and a gas vaporizer vessel for recycling used cleaning fluid is provided. The drum is magnetically coupled to a motor so that it can be rotated during the cleaning process. The system is adapted for automation which permits increased energy efficiency as the heating and cooling effect associated with CO2 gas condensation and expansion can be channeled to heat and cool various parts of the system.
Abstract:
Animal litter comprises lightweight composite particles, primarily comprising various bentonite clays, a performance-enhancing active and a foaming agent. The clay particles and performance-enhancing active are agglomerated in the presence of the foaming agent, trapping moisture and air and forming porous reduced bulk density composites.
Abstract:
A dry cleaning system particularly suited for employing supercritical CO2 as the cleaning fluid consisting of a sealable cleaning vessel containing a rotatable drum adapted for holding soiled substrate, a cleaning fluid storage vessel, and a gas vaporizer vessel for recycling used cleaning fluid is provided. The drum is magnetically coupled to a motor so that it can be rotated during the cleaning process. The system is adapted for automation which permits increased energy efficiency as the heating and cooling effect associated with CO2 gas condensation and expansion can be channeled to heat and cool various parts of the system.
Abstract:
The invention provides a cleaning method in which a solvent such as densified carbon dioxide can be used for rapid and efficient cleaning, but with decreased damage to solid components such as buttons. The method comprises contacting a substrate to be cleaned with a first fluid, removing the first fluid from contact with the substrate while replacing with a second fluid, and recovering the substrate substantially free of the first and second fluids and from the contaminant. The first fluid is a densified gas while the second fluid is a compressed gas. A preferred embodiment of the method includes the use of a pretreatment designed for compatibility with the densified first fluid.
Abstract:
The present invention provides a stable liquid, substantially nonaqueous, detergent comprising, by weight percent: a) 20-90% of a liquid portion which comprises an alkoxylated nonionic surfactant; b) a solids portion which comprises: (i) 5-50% of a builder; (ii) 0-20% of an oxidant; said solids being stably suspended in said liquid portion, by means of c) a phase stabilizing amount of a lower alkylated fused ring polyarylene sulfonate; and d) 0-5% of a hydrolytic enzyme. Further desirable adjuncts may be added to the liquid compositions of this invention.
Abstract:
The invention provides a cleaning method in which a solvent such as densified carbon dioxide can be used for rapid and efficient cleaning, but with decreased damage to solid components such as buttons. The method comprises contacting a substrate to be cleaned with a first fluid, removing the first fluid from contact with the substrate while replacing with a second fluid, and recovering the substrate substantially free of the first and second fluids and from the contaminant. The first fluid is a densified gas while the second fluid is a compressed gas. A preferred embodiment of the method includes the use of a pretreatment designed for compatibility with the densified first fluid.
Abstract:
A dry cleaning system particularly suited for employing supercritical CO2 as the cleaning fluid consisting of a sealable cleaning vessel (10) containing a rotatable drum (110) adapted for holding soiled substrate, a cleaning fluid storage vessel (12), and a gas vaporizer vessel (11) for recycling used cleaning fluid is provided. The drum (110) is magnetically coupled to a motor (120) so that it can be rotated during the cleaning process. The system is adapted for automation which permits increased energy efficiency as the heating and cooling effect associated with CO2 gas condensation and expansion can be channeled to heat and cool various parts of the system.
Abstract:
The invention provides a cleaning method in which a solvent such as densified carbon dioxide can be used for rapid and efficient cleaning, but with decreased damage to solid components such as buttons. The method comprises contacting a substrate to be cleaned with a first fluid, removing the first fluid from contact with the substrate while replacing with a second fluid, and recovering the substrate substantially free of the first and second fluids and from the contaminant. The first fluid is a densified gas while the second fluid is a compressed gas. A preferred embodiment of the method includes the use of a pretreatment designed for compatibility with the densified first fluid.
Abstract:
A dry cleaning system particularly suited for employing supercritical CO2 as the cleaning fluid consisting of a sealable cleaning vessel containing a rotatable drum adapted for holding soiled substrate, a cleaning fluid storage vessel, and a gas vaporizer vessel for recycling used cleaning fluid is provided. The drum is magnetically coupled to a motor so that it can be rotated during the cleaning process. The system is adapted for automation which permits increased energy efficiency as the heating and cooling effect associated with CO2 gas condensation and expansion can be channeled to heat and cool various parts of the system.
Abstract:
The present invention provides a stable liquid, substantially nonaqueous, detergent comprising, by weight percent: a) 20-90% of a liquid portion which comprises an alkoxylated nonionic surfactant; b) a solids portion which comprises: (i) 5-50% of a builder; (ii) 0-20% of an oxidant; said solids being stably suspended in said liquid portion, by means of c) a phase stabilizing amount of a lower alkylated fused ring polyarylene sulfonate; and d) 0-5% of a hydrolytic enzyme. Further desirable adjuncts may be added to the liquid compositions of this invention.