| Patents for C08J 11 - Recovery or working-up of waste materials (9,055) |
|---|
| 02/22/1994 | US5288760 Grinding, separation of layers |
| 02/19/1994 | CA2104253A1 Process for the preparation of monomeric terephthalic diesters and diols from polyesters |
| 02/17/1994 | WO1994003523A1 Method of modifying polymers |
| 02/17/1994 | WO1994003323A1 Method of recycling molded product of foam particles |
| 02/17/1994 | DE4226516A1 Composite sheet material used for prodn. of e.g. compression moulded car parts - contains a polypropylene matrix, comprising recycled bottle tops, and fibre mat reinforcement |
| 02/15/1994 | US5286463 Using a reducing sugar |
| 02/15/1994 | US5286424 Recycling polyolefins coated with chlorine-containing polymer |
| 02/10/1994 | DE4225729A1 Processing solvent contg. paint residues - involves coating residues on heated belt or rotating disc, evaporating solvent, removing solid, milling and dissolving in new solvent |
| 02/10/1994 | DE4225627A1 Verfahren zur Modifizierung von Polymeren A process for the modification of polymers |
| 02/08/1994 | CA1326937C Method and apparatus for treating waste paint sludge |
| 02/03/1994 | WO1994002312A1 Manufacture of a multilayered covering |
| 02/03/1994 | DE4225333A1 Production of mouldings from disintegrated used tyres etc. - comprises mixing particles of scrap material with water-soluble filler, then with e.g. polyurethane reagents and finally blowing agent, and moulding. |
| 02/03/1994 | DE4224990A1 Utilisation of polyolefin waste - by thermal, oxidative or catalytic decomposition to polyolefin waxes and resins or oxidn. to oxidised polyolefin(s). |
| 02/03/1994 | DE4224769A1 Upgrading of polycarbonate scrap - by adding known oxetanyl siloxane(s)] to restore pre-processing or pre-ageing average mol. wt. |
| 02/03/1994 | DE4224749A1 Efficiently removing all blowing gases from foam plastics - by heating the material in hot air draught while it is moved by revolving screw up inclined tube, collecting and liquefying gases liberated. |
| 02/02/1994 | EP0581094A1 Use of polyisobutylene for the disposal of contaminated solids and dusts |
| 02/02/1994 | CA2101181A1 Process for the separation of printing ink from composite materials |
| 02/01/1994 | CA1326637C Method and plant for separation of synthetic water soluble polymers |
| 01/27/1994 | DE4224702A1 Elastic back layer prodn. for carpet, for improved consistency mixt. - by using carpet waste mixed with polyurethane binder and added old rubber granulate from tyres prior to and/or in binding phase for completed prod. |
| 01/27/1994 | DE4224667A1 Herstellung einer mehrschichtigen Verkleidung Producing a multilayer cladding |
| 01/27/1994 | DE4224164A1 Granules and moulded parts prodn., for use in e.g. vehicle construction - by thermoplastic processing of crosslinked polyurethane(s) or polyurea(s), e.g. by the RIM method, opt. with addn. of thermoplastics |
| 01/27/1994 | DE4223864A1 Polyamide mixts. with scrap polyamide-polyolefin cpd. film - also contain special compatibiliser, esp. e.g. ethylene@]- maleic anhydride] copolymer or ethylene@]-butyl acrylate]-glycidyl acrylate] copolymer |
| 01/26/1994 | CN1081188A Regenerative method for spent high molecular material |
| 01/26/1994 | CN1081185A Technology for producing microcrystalline cellulose with sulfated waste cotton velvet |
| 01/25/1994 | US5281629 Forming slurry containing polyurethane binder and coagulating agent, mixing with organic solvent, reacting free isocyanate groups with isocyanate reactive compound, removing water and insoluble components, recovering organic phase |
| 01/20/1994 | WO1994001491A1 Method for recovering a synthetic waste material contaminated with other materials |
| 01/20/1994 | WO1994001231A1 Contaminated waste processing method, particularly for hospital waste, and plant therefor |
| 01/20/1994 | CA2116440A1 Process for the valorization of synthetic material wastes contaminated with others materials |
| 01/18/1994 | US5280105 Using aqueous solution of alphalic carboxylic acid |
| 01/18/1994 | US5280066 Blend of polytetrafluoroethylene, polypropylene and anhydride modified butylene-(ethylene-)styrene polymer |
| 01/13/1994 | DE4319180A1 Recycling used polystyrene articles - by dissolving in styrene, purifying the soln. opt. adding a rubber polymerising and removing residual solvent |
| 01/12/1994 | CN1080645A Waste polystyrene recovery and utilization device and process |
| 01/11/1994 | US5278282 Separating polymers from solid mixture of at least three polymers including at least two different polymers which are members of polyethylene family by varying solvent temperature to dissolve different polymers |
| 01/11/1994 | US5277864 Toughened thermoplastic polyester compositions |
| 01/06/1994 | WO1994000497A1 Continuous ultrasonic devulcanization of vulcanized elastomers |
| 01/05/1994 | EP0577279A1 Process for the conversion of polymers |
| 01/05/1994 | EP0576535A1 Extrusion method for recycling waste plastics. |
| 01/05/1994 | DE4221681A1 Recycling polyethylene@ polypropylene@ or polystyrene adhesive label scrap - by mixing with adhesive-free polymer and communicating to give prod. for packaging, agricultural film etc. mfr. |
| 01/05/1994 | DE4221205A1 Reprocessing of carriers made of soluble carrier and coated with silver@ amalgam - comprises dissolving carrier in solvent e.g MEK, and e.g. sepg. soln. for silver@ amalgam, for reuse in processes for removal of mercury@ from liquids |
| 01/05/1994 | DE4220623A1 Fine particle rubber powder prodn. from scrap rubber - involves breaking up large pieces, granulating, cryogenically cooling, pulverising, sieving and bacterially extracting sulphur@ from finest powder |
| 01/05/1994 | DE4220412A1 Cleavage of polycarbonate(s) to give bisphenol(s) and di:aryl carbonate(s) - by catalytic transesterification with phenol(s), isolation of bisphenol, flash distn. of residue and fractionation of distillate |
| 01/05/1994 | CN1080312A Method and apparatus for production of fuel from waste plastics |
| 01/04/1994 | US5275948 Method for reprocessing scrap rubber |
| 12/30/1993 | CA2098778A1 Process for the conversion of polymers |
| 12/29/1993 | EP0575855A1 Process of recycling scrap polymers |
| 12/29/1993 | EP0575847A1 Process for the production of polybutylene terephthalate from polyethylene terephthalate scrap |
| 12/28/1993 | US5274004 Process for conversion of polyurethane polymer to polyol and fresh polyurethane polymer therefrom |
| 12/23/1993 | WO1993025610A1 Process for conversion of polyurethane polymer to polyol ahd fresh polyurethane polymer therefrom |
| 12/23/1993 | WO1993025609A1 Recycled fibre reinforced resin containing product and method and apparatus therefor |
| 12/23/1993 | WO1993025513A1 Method for the simultaneous preparation of dicarboxylic acids and diamines by decomposing polyamides into their constituent monomers |
| 12/23/1993 | DE4219756A1 Verfahren zur gleichzeitigen Herstellung von Dicarbonsäuren und Diaminen durch Spaltung von Polyamiden in ihre monomeren Bestandteile A process for the simultaneous production of dicarboxylic acids and diamines by cleavage of polyamides into their monomeric constituents |
| 12/14/1993 | US5269948 Decontamination of polystyrene |
| 12/10/1993 | CA2070884A1 Method of disposal of hot water soluble garments and like fabrics |
| 12/09/1993 | DE4218521A1 Utilisation of plastic film scrap and composite material contg. film - involves size redn. of film, heating to m.pt. and compressing to slabs for conversion to gas |
| 12/08/1993 | EP0572552A1 Improved methods for processing battery waste and other lead-contaminated materials |
| 12/07/1993 | US5268222 Thermoplastic polymer of polyvinyl alcohol |
| 12/03/1993 | CA2070267A1 Method and apparatus for recovering resources from discarded tires |
| 12/02/1993 | DE4230157C1 Recycling plastic scrap, esp. from cars - by milling, re-granulating with addn. of compatibiliser, stabilisers, impact modifier and opt. reinforcing agents, and injection moulding |
| 12/02/1993 | DE4217524A1 Recovering isocyanate-reactive components from polyurethane(s) and polyurea(s) - by heating with water, amine(s) and opt. mono, di or poly:hydric alcohol(s), and distilling to recover prod. and amine etc. |
| 11/30/1993 | US5266716 Process for the splitting of polycarbonates |
| 11/30/1993 | US5266601 Process for preparing polybutylene terephthalate from pet scrap |
| 11/30/1993 | US5266124 Process for removing contaminants from polyolefins |
| 11/30/1993 | CA2045443C Process for the separation of plastics |
| 11/25/1993 | WO1993023465A1 Improved poly ethylene terephthalate decontamination |
| 11/25/1993 | WO1993019398A3 Composition for removing adhesives from polymeric film and process for using same |
| 11/25/1993 | DE4217024A1 Regenerating NCO-reactive components from polyurethane(s) or polyurea(s) - by heating with glycol, water and opt. other alcohol(s), and removing glycol by distn., used for reaction with isocyanate(s) |
| 11/24/1993 | EP0570843A2 Process for the recovery of caprolactame from oligomers and/or polymers of caprolactame |
| 11/23/1993 | US5264487 Compositions derived from recycled polymers |
| 11/18/1993 | EP0569756A1 Process for reclaiming lacquer sludges |
| 11/18/1993 | EP0569711A2 Process for pretreating varnished plastic products assigned for recycling |
| 11/18/1993 | EP0569632A1 Method of producing a thermoplastic resin from vulcanised rubber-containing compositions |
| 11/18/1993 | EP0569568A1 Method of regenerating pvpp, and the use of an oxidizing agent for the regeneration. |
| 11/18/1993 | DE4215573A1 Sepn. laminated film into the pure components - by treating the crushed laminate with an organic liq. to dissolve or swell the adhesive or split heat-bonded components apart |
| 11/18/1993 | DE4215349A1 Moulded articles prodn. e.g. sheets - by granulating waste materials contg. polyester fibres or glass and three=stage pressing |
| 11/11/1993 | WO1993022119A1 Process and device for recycling blown plastics |
| 11/11/1993 | WO1993022077A1 Method for processing residue-containing packages |
| 11/11/1993 | DE4215113A1 Waste disposal and opt. reuse of styrene] foam - by degassing using low mol. wt. alkane(s) and/or alcohol(s) to cause redn. in vol. followed by re-expanding |
| 11/11/1993 | CA2134117A1 Method for processing residue-containing packages |
| 11/10/1993 | EP0569196A1 High gas barrier co-extruded multilayer films |
| 11/10/1993 | EP0568893A1 Recycling of shaped plastic materials |
| 11/10/1993 | EP0568791A2 Process for regenerating packaging materials |
| 11/10/1993 | EP0393030B1 Destruction of plastics waste |
| 11/09/1993 | CA1324226C Impact resistant polyethylene terephthalate/ polycarbonate/polyethylene graft copolymer blends |
| 11/07/1993 | CA2095378A1 Process for recovering binder components from lacquer sludge |
| 11/05/1993 | CA2094677A1 High gas barrier co-extruded multilayer films |
| 11/04/1993 | DE4214070A1 Using polyamide waste to make imide contg. di:carboxylic acids - by reacting molten resin with tri:mellitic anhydride under inert gas followed by purificn. |
| 11/02/1993 | US5258413 Continuous ultrasonic devulcanization of valcanized elastomers |
| 11/02/1993 | US5258230 Polymer sheets and polymer blends of vinyl alcohol polymers |
| 10/27/1993 | EP0567292A1 Polymer cracking |
| 10/19/1993 | US5254263 Method of making sludge powder and sealant from paint sludge and sludge powder and sealant compositions produced thereby |
| 10/19/1993 | US5253813 Method for recovering PVC and urethane foam from commingled trim waste using elutriators |
| 10/14/1993 | WO1993020132A1 Recycling tyres |
| 10/14/1993 | WO1993020125A2 Process for the removal of foreign materials from a post-consumer polyethylene terephthalate feed stream |
| 10/14/1993 | DE4306346A1 Re-plasticisation waste rubber crumb - by mixing with zinc soap of long chain unsatd. carboxylic acid and subjecting to mechano chemical treatment |
| 10/12/1993 | US5252641 Process for production of bituminous compositions containing polymeric residues |
| 10/12/1993 | US5252615 Aqueous coating compositions from polyethylene terephthalate |
| 10/12/1993 | US5252614 Process for separating polyethylene terephthalate from polyvinyl chloride |
| 10/12/1993 | US5251824 Process for the removal of foaming agents from foamed plastics |
| 10/06/1993 | EP0563532A1 Process for the compacting of expanded polystyrene |
| 10/06/1993 | EP0563354A1 Process for the production of high molecular weight polyester resins |