| Patents for C08J 11 - Recovery or working-up of waste materials (9,055) |
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| 06/01/1983 | EP0080434A2 Process for the purification of organic solutions |
| 05/25/1983 | EP0079712A1 Borate solution soluble polyvinyl alcohol films |
| 05/10/1983 | US4382758 Apparatus for manufacturing cellulosic fibrous material which can be pressed into molded parts |
| 05/03/1983 | US4382108 Coating scrap plastic with polyisocyanate binder, sandwiching between cellulose material, heating and pressurization |
| 03/16/1983 | EP0074344A1 A method of reclaiming rubber |
| 01/26/1983 | EP0070819A1 A method for working-up metal-containing waste products |
| 01/18/1983 | CA1139900A1 Process for preparing polymethylene polyterephthalates from wastes |
| 01/11/1983 | US4368274 Method for removing aluminum from polyethylene teraphthalate (PET) bottle scrap |
| 12/28/1982 | US4366272 Method for recovering synthetic resin emulsion |
| 12/28/1982 | US4366006 Process for recovering resin from a spent commercial article |
| 12/28/1982 | CA1138588A1 Composite material compositions using wastepaper and method of producing same |
| 12/14/1982 | US4363924 Depolymerization of polytetramethylene glycol ethers |
| 12/07/1982 | US4362865 Method for continuous soluble polypropylene recovery from hydrocarbon polymerization media |
| 11/23/1982 | US4360461 Process for obtaining caprolactam by cleaving caprolactam oligomers |
| 11/02/1982 | US4357255 Process for the preparation of liquid mixtures of compounds having isocyanate groups |
| 10/05/1982 | CA1132941A1 Microwave product flow additive |
| 09/29/1982 | EP0061147A1 Use of waste materials in the preparation of fillers for plastics articles |
| 09/08/1982 | EP0059594A1 Method of recovering polyether polyols from polyurethane |
| 08/31/1982 | US4347098 Solvent vapor recovery from a polymer solution |
| 08/17/1982 | US4345039 Method of recovering polyester fibers and cellulosic powder from polyester/cotton textile waste |
| 07/13/1982 | US4339358 Alcoholysis, comminution |
| 07/06/1982 | CA1127131A1 Plant and method for recycling old tires and similarly compounded materials |
| 06/22/1982 | US4336406 Polyol extraction by high boiling alkanes |
| 06/15/1982 | CA1125699A1 Treatment of sintered polytetrafluoroethylene with irradiation and heat to produce a grindable material |
| 06/01/1982 | US4332932 Method for producing a rubber melt in a temperature-controlled screw extruder |
| 06/01/1982 | US4332748 Polyethylene recovery from broke |
| 06/01/1982 | US4332700 Covering with inert powder, carbonization of rubber, magnetic separation of metal |
| 05/26/1982 | EP0052213A1 Process for depolymerizing polytetramethylene ether glycols |
| 05/04/1982 | US4328368 Steam hydrolyzed |
| 04/13/1982 | US4324881 Preparation of amide-containing polyethers |
| 04/07/1982 | EP0049054A2 Apparatus for pyrolyzing shredded tires |
| 04/06/1982 | CA1121549A1 Process for the separation of polyvinyl alcohol from aqueous solutions |
| 03/24/1982 | EP0047913A1 Process for the splitting up of polyurethane hydrolysates into polyethers and diamines |
| 03/17/1982 | EP0047419A1 Process for the production of liquid mixtures of compounds having isocyanate groups, and their use as components in the production of polyurethane plastics material |
| 03/02/1982 | US4317939 Catalyzed dissolution-hydrolysis of polyurethane wastes |
| 02/24/1982 | EP0046183A1 Process for the production of caprolactam by decomposition of caprolactam oligomers |
| 02/23/1982 | US4316992 Process for polyol recovery from polyurethane foam comprising alcohol and steam hydrolysis |
| 02/23/1982 | CA1118570A1 Process for manufacturing shaped polyester article using scrap materials |
| 02/02/1982 | US4313786 Magnetron solvent recovery system |
| 01/26/1982 | US4312795 Paint composition comprising powder paint dispersed in aqueous resin solution |
| 01/26/1982 | US4312759 Producing leach-resistant consolidate |
| 01/19/1982 | CA1116576A1 Reclaiming elastomeric material as a particulate product |
| 12/29/1981 | CA1115449A1 Phenolic resin recovery process |
| 12/29/1981 | CA1115448A1 Process of reclaiming rubber |
| 12/15/1981 | US4305850 With benzoyl peroxide or lauroyl peroxide |
| 12/10/1981 | EP0033325A4 Solvent recovery process. |
| 12/01/1981 | US4303559 Agglomeration of dried particles and thermosetting resin |
| 12/01/1981 | CA1113219A1 Method of reclaiming waste sheet flooring |
| 11/18/1981 | EP0039910A1 Process for extracting rubber and by-products from guayule and guayule-like shrubs |
| 11/11/1981 | EP0039364A1 Recovery of polymeric cation exchange materials for reuse |
| 10/20/1981 | US4296218 Heat-curable and solvent-soluble ester group-containing polymer compositions and process for their preparation |
| 09/22/1981 | US4290988 Method for the manufacture of cellulosic fibrous material which can be pressed into moulded parts |
| 09/02/1981 | EP0034825A2 Removal of residual acrylonitrile monomer |
| 08/12/1981 | EP0033325A1 Solvent recovery process. |
| 08/04/1981 | US4282367 Multistage amine hydrochloride formation |
| 08/04/1981 | CA1106548A1 Process for separating and recovering polystyrene from polystyrene containing materials |
| 07/28/1981 | US4281197 Hydrolytic decomposition method |
| 07/21/1981 | USRE30685 Adding petroleum hydrocarbons |
| 07/14/1981 | US4278582 Reaction with ammonia, ammonium hydroxide, mercaptan, hydrogen sulfide, or 1a or 2a phosphate, silicate, or carbonate |
| 07/14/1981 | CA1105199A1 Process for easily degrading waste consisting of the reaction products of organic compounds containing isocyanate groups with alcohols and/or water |
| 07/08/1981 | EP0031538A2 Process and apparatus for reclaiming polyurethane from waste material |
| 06/02/1981 | US4271214 Containing pigment and curing agent |
| 06/02/1981 | CA1102493A1 Recovery and reuse of paint solids from waste water |
| 06/02/1981 | CA1102481A1 Dissolution of polyurethane foams and re-use of the products therefrom |
| 05/26/1981 | CA1101890A1 Hydrolytic decomposition method and apparatus |
| 05/19/1981 | CA1101599A1 Process for separating polyvinyl alcohol from its solution |
| 05/12/1981 | US4267078 Process for easily degrading waste consisting of the reaction products of organic compounds containing isocyanate groups with alcohols and/or water |
| 05/05/1981 | US4266036 Recovery of polymeric cation exchange materials for reuse by converting by reaction to the precursor form |
| 04/30/1981 | WO1981001158A1 Recovery of polymeric cation exchange materials for reuse |
| 04/28/1981 | US4264481 Process of reclaiming rubber |
| 04/28/1981 | CA1100249A1 Method and composition for reclaiming polyurethane |
| 04/07/1981 | US4260509 Acetone, methylene chloride and amyl or butyl acetate, for hexafluoropropylene-vinylidene fluoride copolymer, safety |
| 03/24/1981 | US4258158 Manufacture of ethylene homopolymers and copolymers |
| 03/24/1981 | US4257925 Which has been swelled with a monomer, and copolymerized |
| 03/24/1981 | CA1098072A1 Process for vacuum pyrolysis removal of polymers from various objects |
| 03/17/1981 | US4256470 Defoaming plastics dispersion, filtration |
| 03/10/1981 | US4255295 Chopping, compression, degassing extrusion, post-polymerization |
| 03/10/1981 | CA1097254A1 Recovery of chemical components of cellulosic regenerating solution |
| 02/19/1981 | WO1981000412A1 Solvent recovery process |
| 02/17/1981 | US4251649 Heat-curable and solvent-soluble ester group-containing polymer compositions and process for their preparation |
| 02/17/1981 | US4251034 Centrifugally impacting in a cryogenic fluid |
| 02/10/1981 | US4250222 Coarsely grinding, adding fibers |
| 01/27/1981 | US4247580 Refinishing of the surfaces of bodies of a thermoplastic resin |
| 01/27/1981 | CA1094645A1 Method and apparatus for microwave heating of flowable material |
| 01/20/1981 | CA1094249A1 Polyester polymer recovery from dyed polyester fibers |
| 01/13/1981 | US4244841 Curing with sulfur and zinc stearate |
| 01/13/1981 | CA1093749A1 Expanded styrene-polymers and polyolefin micro-bits and their preparation |
| 12/23/1980 | US4240587 Method for recycling tires and similarly compounded materials to recover usable constituents |
| 12/09/1980 | CA1091398A1 Recovery of polyacetal resins |
| 11/18/1980 | US4234663 Thermoplastic multi-layer foil structure |
| 11/18/1980 | CA1090046A1 Fabric dye stripping, separation and recovery of polyester |
| 10/15/1980 | EP0017349A1 Treatment of sintered polytetrafluoroethylene with irradiation and heat to produce a grindable material |
| 10/14/1980 | US4228052 Method of mixing materials of construction with minor amounts of addition agents |
| 10/07/1980 | US4226718 Coagulation |
| 09/30/1980 | US4225640 Method of reclaiming thermoplastic materials from municipal waste and product produced thereby |
| 09/23/1980 | US4224270 Coated polyester films |
| 09/02/1980 | US4220563 Heat-curable and solvent-soluble ester group-containing polymer compositions and process for their preparation |
| 09/02/1980 | US4220511 Treatment of sintered poly-tetrafluoroethylene with irradiation and heat to produce a grindable material |
| 08/19/1980 | CA1084194A1 Process for production of thermoplastic polymer alloys |
| 08/05/1980 | CA1083277A1 Construction material, a process and device for producing the same |