Method of inhibiting freezing and improving flow and handleability characteristics of solid, particulate materials
July 27, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3350314 3563461 3811660 3847571 Dust suppression with small bubble foam in cyclone Method and composition for reducing the strength of ice Apparatus for making small bubble foam Hexitol borate compositions as freeze conditioning agents for particulate solids Suppression of respirable dust with foam Compositions for reducing the freeze-adherence of particulate minerals to the walls of transport bins and the like InventorsAssigneeApplicationNo. 558941 filed on 07/27/1990US Classes:427/212, PARTICLES, FLAKES, OR GRANULES COATED OR ENCAPSULATED106/13, Fog, frost or ice preventive252/70, FROST-PREVENTING, ICE-THAWING, THERMOSTATIC, THERMOPHORIC, OR CRYOGENIC427/215, Inorganic base427/220Organic coatingExaminersPrimary: Beck, ShriveAssistant: Owens, Terry J. Attorney, Agent or FirmForeign Patent References
International ClassB05D 007/24AbstractA stable foam having foam bubble diameters of 0.005-0.015 inches and being comprised of from about 10-30 wt. % of a brine freeze control agent selected from the group consisting of sodium chloride, calcium chloride, magnesium chloride, potassium chloride, borax, potassium thiocyanate, potassium acetate, sodium acetate, and sodium nitrite, anionic surfactant, amphoteric surfactant, and water is applied to solid, particulate materials such as coal or mineral ores to inhibit freezing and improve handleability characteristics of the particulate materials. The foam optionally may contain additional freeze control agents such as ethylene glycol or cellulose ethers.Field of SearchPARTICLES, FLAKES, OR GRANULES COATED OR ENCAPSULATEDOrganic coating Inorganic base FROST-PREVENTING, ICE-THAWING, THERMOSTATIC, THERMOPHORIC, OR CRYOGENIC Organic components Metal compounds or inorganic components (except water) Organic compounds of nonmetals other than C, H, and O Carboxylic organic compounds containing Organic compounds of nonmetals other than C, H, O, and N Carboxylic organic compounds containing Organic compounds of nonmetals other than C, H, and O Fog, frost or ice preventive | |
