| Patents for C08J 11 - Recovery or working-up of waste materials (9,055) |
|---|
| 03/19/1992 | DE4029079A1 Disposing of hygienic cellulose waste, esp. from clinics - by treatment with acid to form cellulose ester paste, sepn. of solids, treatment with alkali and granulation to form fertiliser |
| 03/19/1992 | DE4028999A1 Recovering metals for composite materials - by heating with alkylbenzene(s), THF and/or dioxan, and water contg. alcohol or ketone to remove non-polar, polar and cellulosic materials |
| 03/18/1992 | EP0475556A1 Plastics waste processing |
| 03/18/1992 | EP0475455A1 Magnetic recording medium and process for recovery and processing thereof |
| 03/18/1992 | EP0456736A4 Aggregates or clusters of water-swellable polymers having increased hydration rate over unassociated water-swellable polymers |
| 03/14/1992 | WO1992007900A1 Process for treating lacquer coagulates and their use |
| 03/14/1992 | CA2050767A1 Process for the recovery of metals and coating materials from composite materials |
| 03/12/1992 | DE4028567A1 Reusing over-sprayed lacquer powder coatings - by feeding over-spray back to original blending extruder |
| 03/11/1992 | EP0473990A2 Recycling of plastics waste |
| 03/10/1992 | US5094912 Labels, copolymer of an alkyl acrylate and an acrylic acid |
| 03/05/1992 | WO1992003505A1 Toughened thermoplastic polyester compositions |
| 03/05/1992 | WO1992001767A3 Recycling process, apparatus and product produced by such process for producing a rubber extender/plasticizing agent from used automobile rubber tires |
| 03/04/1992 | CN1059154A Treatment of waste polystyrene articles |
| 03/04/1992 | CN1059118A Modelling foam products made from waste polystyrene foam |
| 03/03/1992 | CA1296499C Laminates containing coextruded scrap |
| 03/01/1992 | CA2024340A1 Process for the complete reprocessing of high polymer waste products |
| 02/26/1992 | EP0471925A2 Method for reusing residues containing polymers and fillers |
| 02/25/1992 | CA1296483C Use of membranes for ethylene recovery in polymerization processes |
| 02/20/1992 | DE4030639C1 Polyurethane resin recycling process - comprises shredding resin, swelling obtd. particles to a flowable gel, adding poly:ol, isocyanate etc. |
| 02/20/1992 | DE4025102A1 Wiedergewinnung von schaumstoffresten und/oder schaumstoffabfaellen Recovery of foam residues and / or schaumstoffabfaellen |
| 02/19/1992 | EP0471658A2 Use of recovered PVB in the manufacture of flooring |
| 02/18/1992 | US5089571 Regenerated, high molecular weight, thermoplastic resins and process for regenerating thermoplastic resins |
| 02/09/1992 | WO1992002575A1 Reclaiming of foam off-cuts and/or waste foam |
| 02/09/1992 | CA2088736A1 Reclaiming of foam off-cuts and/or waste foam |
| 02/06/1992 | WO1992001767A2 Recycling process, apparatus and product produced by such process for producing a rubber extender/plasticizing agent from used automobile rubber tires |
| 02/06/1992 | WO1992001739A1 Method for obtaining an elastomer product with high petroleum and its by-products absorption power |
| 02/06/1992 | CA2066675A1 Method for obtaining an elastomer product with high petroleum and its by-products absorption power |
| 02/05/1992 | EP0470048A2 Method for recycling discolored polyolefins |
| 02/05/1992 | EP0469904A2 Process and apparatus for separating heterogeneous plastic material into homogeneous fractions |
| 02/05/1992 | EP0469402A2 Process for work-up and purification of basic medium soluble polymers |
| 02/03/1992 | WO1992002576A1 Process for producing polyol-containing dispersions and their use |
| 02/03/1992 | CA2087718A1 Process for producing polyol-containing dispersions and their use |
| 02/02/1992 | CA2048223A1 Process for separating hetero-geneous plastic material into homogeneous fractions and apparatus useful to this purpose |
| 01/29/1992 | EP0468375A2 Process for reclaiming aqueous base or acid soluble polymers |
| 01/28/1992 | US5084140 Heating with microwave radiation for pyrolysis of plastics or polychlorinated biphenyl |
| 01/23/1992 | WO1992001008A1 Method of preparing water-swellable products using very fine particles of water-swellable polymers |
| 01/22/1992 | CN1058026A Method for casting nylon with polymonomer of waste nylon |
| 01/16/1992 | DE4021847A1 Verfahren zur herstellung wasserquellbarer produkte unter verwendung von feinstanteilen wasserquellbarer polymerer Process for the preparation of water-swellable products using fine fractions of water- |
| 12/27/1991 | WO1992000334A1 Method for treating cross-linked eva-based polymers, and uses thereof |
| 12/27/1991 | CA2085479A1 Process for the treatment of cured eva polymers and utilization |
| 12/26/1991 | WO1991019763A1 New hdpe resins and products with improved properties |
| 12/24/1991 | US5075355 Stabilizer concentrate |
| 12/18/1991 | EP0397662B1 Process for treating colloidal solutions of lacquer sludges |
| 12/17/1991 | US5073416 Articles from mixed scrap plastics |
| 12/17/1991 | US5073203 Autoclaving |
| 12/12/1991 | DE4119303A1 Recovery of recyclable prods. - from scrap contg. metals and polymers, using series of sepn. processes |
| 11/27/1991 | EP0458478A2 Process for recycling of contaminated PVC |
| 11/27/1991 | EP0458261A1 Compositions prepared using finely-divided isocyanate based thermoset polymers |
| 11/27/1991 | EP0458172A2 Process for removing blowing agents from resin foams and device |
| 11/27/1991 | EP0457790A1 Process for binding particulate waste, such as dust, metal scrap, fibres, paper waste or the like, to solids |
| 11/26/1991 | US5068395 Process for producing polymeric plasticizers from polyethylene terephthalate |
| 11/24/1991 | CA2043057A1 Compositions prepared using finely-divided isocyanate based thermoset polymers |
| 11/23/1991 | CA2042958A1 Treatment of waste |
| 11/23/1991 | CA2042909A1 Process for the removal of foaming agents from foamed plastics as well as a device for this purpose |
| 11/21/1991 | EP0456736A1 Aggregates or clusters of water-swellable polymers having increased hydration rate over unassociated water-swellable polymers. |
| 11/21/1991 | DE4028905C1 High purity recycling of paints, lacquers or solvents contg. impurity - is by adjusting solid content, sedimenting coarse, particles, basifying supernatant, acidifying, pptn., etc. |
| 11/21/1991 | DE4016210A1 Upgrading recycled plastics sheet - by activating treating surface applying e.g. adhesive, adding high strength surfaces and e.g. hot pressing |
| 11/13/1991 | EP0455846A1 Method for reconstituting superabsorbent polymer fines |
| 11/13/1991 | CN1014716B Plant for pyrolysis of waste material |
| 11/13/1991 | CN1014715B Process for operating pyrolysis plant |
| 11/12/1991 | US5064582 Spraying with water, mixing, blending with polymer gel |
| 10/31/1991 | DE4014012A1 Recycling of polyamide fibre waste - to give prods. useful in building, ship construction etc. |
| 10/29/1991 | US5061735 Process for the separation of plastics |
| 10/23/1991 | CN1055544A Red mud plastics and prepn. of its products |
| 10/17/1991 | DE4012189A1 Waste from industrial surface coatings - can be disposed of by e.g. mixing with various types of other waste and e.g. hot press moulding into articles used in the building industry |
| 10/10/1991 | DE4010714A1 laminated plastic sheet - has base sheet of recycled plastic, coated on at least one side with decorative sheet of different material |
| 10/08/1991 | US5055350 Composite railroad cross-tie |
| 10/08/1991 | US5055139 Contactingwith sodium phosphate and alkali metal hydroxide solution |
| 09/26/1991 | DE4009496A1 Recovering pure-grade plastics from impure scrap - by dissolving in a suitable solvent and reprecipitating with a non-solvent |
| 09/26/1991 | DE4009308A1 Recycling scrap polymers - by filtering soln. of the polymer through sand to remove insol. impurities |
| 09/25/1991 | EP0448424A2 Method of making bituminous compositions containing polymer residues |
| 09/17/1991 | US5049647 Method for the reduction of impurities in polyester resins |
| 09/10/1991 | US5047453 Process for preparing moldings by compacting and simultaneously bonding fibrous material |
| 09/04/1991 | EP0444991A1 Composite material with thermoplastic matrix containing animal fibres, process for preparing same and its application |
| 08/28/1991 | EP0443932A1 Bituminous compositions containing hydrolysed or alcoholysed polymer residues |
| 08/28/1991 | EP0442866A1 Method and plant for separation of synthetic water soluble polymers. |
| 08/28/1991 | CN1054093A Producing technology for polyvinyl formal glue from waste vinylon |
| 08/22/1991 | DE4104196A1 Recycling thermoset plastics waste esp. polyurethane and polyurea |
| 08/22/1991 | CA2036799A1 Process for fabricating bituminous compositions containing polymer residues |
| 08/22/1991 | CA2036576A1 Bituminous compositions containing hydrolized on alcoolized polymer residues |
| 08/21/1991 | EP0442435A2 Method for recovering wasted or old articles from cross-linked plastic, mainly from polyurethane or polyurea |
| 08/21/1991 | EP0442102A1 Polyphenylene oxide-recycled polystyrene composition and method |
| 08/20/1991 | US5041250 Polymer bonding grains of sand using styrofoam fluff as an adhesive |
| 08/14/1991 | DE4022011A1 Recycling aromatic polycarbonate waste - by treating with active carbon and passing through specified 3- or 4-layer suction filter |
| 08/07/1991 | CN1013450B Process for the production of articles of fractional crystallised polyester |
| 07/30/1991 | US5035794 Removal of tert-butyl chloride by chemisorption onto alumina allows isoprene stream to be recycled |
| 07/11/1991 | DE4000097A1 Elastic road surface for reduction of noise and frost damage - comprises mixture of recycled granulated polymer and ash from burnt rubbish |
| 07/09/1991 | US5030662 Construction material obtained from recycled polyolefins containing other polymers |
| 06/19/1991 | EP0432369A1 Method of separating polyurethane foams and/or polyurethane adhesives from composite structurel parts |
| 06/12/1991 | EP0431429A2 Process and composition used to reclaim paint from spray booth with a flood sheet system |
| 06/12/1991 | CN1052125A Fast desulfurization method of waste rubber strips (blocks) |
| 06/06/1991 | DE4035781A1 Recovery of cleaning solvent, partic. benzyl alcohol- contg. rubber - in which solvent is evaporated in reservoir within closed chamber with inert atmos. and then condensed |
| 06/05/1991 | EP0430199A2 Process for preparing free-flowing mixtures of adhesive coated waste plastic material and the related mixtures |
| 06/05/1991 | CN1051880A Mehtod for separating and recovering the metallic conductor and plastics of waste electric wire and cable |
| 05/28/1991 | US5019161 Process for stripping plated plastic materials |
| 05/23/1991 | DE3938552A1 Crosslinking polyethylene and polyamide by organic peroxide - esp. re-use of composite packaging material |
| 05/22/1991 | EP0428306A2 Composite sheet |
| 05/16/1991 | WO1991006578A1 Process for recovering and purifying a high molecular weight sulfonate |
| 05/15/1991 | CN1051375A Prodn. of various kinds of paints using waste foamed polystyrene as raw material |
| 05/02/1991 | WO1991005818A1 Method and apparatus for recovering elastomeric material |