Method and apparatus for reprocessing rubber tires
December 27, 2020. 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 ReferencesRecovery of hydrocrabon products from elastomers Conversion of automotive tire scrap to useful oils 5236352 Waste tire disposal and recycling Method of reclaiming scrap vulcanized rubber using supercritical fluids Method for depolymerization of rubber Used tire process Depolymerized natural rubber and process for preparation thereof Apparatus, system and method for treating process material such as waste material Apparatus and methods for processing scrap tires Patent #: 5852062 InventorApplicationNo. 748806 filed on 12/27/2000US Classes:521/41, Treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties521/40, PROCESS OF TREATING SCRAP OR WASTE PRODUCT CONTAINING SOLID ORGANIC POLYMER TO RECOVER A SOLID POLYMER THEREFROM521/40.5, Process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only521/45.5Treating with mechanical action and in the absence of a chemically reactive additive or solventExaminersPrimary: Cain, Edward J.Assistant: Lee, Katarzyna W. Attorney, Agent or FirmInternational ClassC08J 011/04AbstractA method and apparatus is disclosed for recovering the rubber content of rubber containing goods such as vehicle tires. The goods are purged of air and immersed in a bath of liquid heated to a temperature sufficient to melt the rubber. The rubber being insoluble in the bath and of less density than the bath, it rises to the surface of the bath and is removed. The process employs a perforated process tube in which the goods are passed in the bath.Field of SearchPROCESS OF TREATING SCRAP OR WASTE PRODUCT CONTAINING SOLID ORGANIC POLYMER TO RECOVER A SOLID POLYMER THEREFROMProcess of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only Treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties Treating with organic phosphorus-containing material Treating with organic nitrogen-containing material Treating with organic chalcogen-containing material Containing organic sulfur Containing carboxylic acid or anhydride group Treating with hydrocarbon or halogenated hydrocarbon material Treating with steam or water Treating with mechanical action and in the absence of a chemically reactive additive or solvent | |
