| Patents for C08J 11 - Recovery or working-up of waste materials (9,055) |
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| 06/23/1994 | WO1994013735A1 Degradable synthetic polymeric compounds |
| 06/23/1994 | WO1994009957A3 Reduction in polystyrene with activated agent |
| 06/23/1994 | DE4342848A1 Purifying polyolefin, esp. shredded polyethylene film, for recycling |
| 06/23/1994 | CA2151602A1 Recovery of a useful polymerizable fraction |
| 06/22/1994 | EP0602658A1 Process and apparatus for the purification of polyolefin |
| 06/22/1994 | EP0602516A1 Process for the chemical destruction of cured aminoplast resins |
| 06/22/1994 | EP0602302A1 Process for the recovery of a polymerisable fraction |
| 06/22/1994 | EP0602202A1 Method for recovering a synthetic waste material contaminated with other materials. |
| 06/21/1994 | US5322878 Carboxylated molding copolymers |
| 06/16/1994 | DE4241933A1 Metal-contaminated thermoplastic processing - involves metal conversion to cpd. form |
| 06/15/1994 | EP0601596A1 Process for modifying the glycolysis reaction product of polyurethane scrap |
| 06/15/1994 | EP0600994A1 Process for producing dispersed liquids containing hydroxy and/or amino-functional compounds and their use |
| 06/15/1994 | EP0576535A4 Extrusion method and apparatus for recycling waste plastics and construction materials therefrom |
| 06/14/1994 | US5321174 Controlled catalystic and thermal sequential pyrolysis and hydrolysis of polycarbonate and plastic waste to recover monomers |
| 06/12/1994 | CA2110739A1 Process for modifying the glycolysis reaction product of polyurethane scrap |
| 06/09/1994 | WO1994012565A1 Process for recycling composite materials containing plastics |
| 06/09/1994 | WO1994012283A1 A polyvinyl chloride-polyethylene terephthalate separation process and product |
| 06/09/1994 | DE4336627A1 Composite material for building industry - comprises reinforcing reeds embedded in recycled plastic matrix |
| 06/09/1994 | DE4241646A1 Improving, exploiting and or utilising plastics swollen in solvent - by e.g. adding material to them or their solvent and or removing substances and or changing their temp |
| 06/09/1994 | DE4240314A1 Prepn of polycarbonate(s) by melt esterification, by degrading polycarbonate from di:phenol - using quat. ammonium or phosphonium cpd as catalyst, prepn. of oligo:carbonate and polycondensation |
| 06/08/1994 | EP0599905A1 Process for treating materials adhesively secured together by an adhesive agent |
| 06/01/1994 | EP0599309A2 A process of recovering components from scrap polyester |
| 06/01/1994 | EP0599066A1 Process for imparting electrostatic dissipative properties to recycled plastics and articles made therefrom |
| 06/01/1994 | DE4240109A1 Expandable styrene polymer (PS), esp for recycling PS foam particles - contains PS, fire retardants in the body of the polymer and on the surface of the particles, low-boiling blowing agent and opt additives |
| 06/01/1994 | DE4239931A1 Coating material, esp for corrosion protection - comprises a water-based system contg, as organic extender, powder paint residues in the form of fines from prodn or application |
| 06/01/1994 | DE4239864A1 Prepn. of soil conditioning prods. e.g., soil conditioners, filter plates etc. - by mixing comminuted plastic wastes and mineral powders, e.g., clays, pelletising and drying |
| 05/31/1994 | US5317043 Dissolving and precipitation of polymers |
| 05/31/1994 | US5316224 Softening, applying shear |
| 05/26/1994 | DE4238935A1 Conversion of organic waste to powdered prod. - by thermal embrittlement and comminution, esp. to produce combustion or gasification feeds |
| 05/25/1994 | EP0598257A1 Composition for reclaiming paint from a spray booth |
| 05/19/1994 | DE4238178A1 Chemical conversion of polyamide waste to heat resistant monomers - by reacting with trimellitic anhydride in presence of fluid reaction medium to give bis-carboxy-phthalimido-acids and original di:acid(s) derived from polyamide |
| 05/18/1994 | EP0597751A1 Process for recovery of alkali metal or alkali earth metal terephtalate and alkylene glycol from alkylene polyterephtalates |
| 05/18/1994 | EP0597294A1 Process for the preparation of methylpolysiloxanes |
| 05/11/1994 | WO1994009957A2 Reduction in polystyrene with activated agent |
| 05/11/1994 | DE4320000C1 Appts. to break binding of two or more materials - has reactor drum partially and intermittently immersed in solvent, used for recycling waste blister packaging for tablets |
| 05/10/1994 | CA2102766A1 Enhanced process for the recuperation of alkaline or alkaline earth metal terephtalate and of alkyleneglycol from alkylene polyterephtalates |
| 05/10/1994 | CA2102676A1 Recycling polyolefins coated with chlorine-containing polymer |
| 05/04/1994 | EP0595184A1 Recycling cellulose esters from the waste from cigarette manufacture |
| 05/04/1994 | CN1086206A Preparation of monomer terephthalaciddiester-and-diol from polyester |
| 04/30/1994 | CA2109496A1 Process for imparting electrostatic dissipative properties to recycled plastics and articles made therefrom |
| 04/28/1994 | WO1994009064A1 Way to regain polythene and polypropylene and other polyolefines from return material, especially such of composite type |
| 04/28/1994 | DE4235765A1 Prepn of crosslinked polymer waste for recycling - by exposing it to high shear at temperature above original crosslinking temp. |
| 04/27/1994 | EP0594307A1 Method for recovering PVC and urethane foam from commingled trim waste using elutriators |
| 04/27/1994 | EP0593975A1 Use of thermoplastic poly(ester-urethane) as a compostable plastic |
| 04/27/1994 | EP0593589A1 Method for preparation of composite materials. |
| 04/27/1994 | EP0593482A1 Method of manufacturing plastic composite panels. |
| 04/24/1994 | CA2100685A1 Process for the preparation of methylpolysiloxanes |
| 04/21/1994 | DE4234953A1 Plastic film contg. contaminated recycled plastic - by crushing and opt. cleaning contaminated scrap film, compacting, re:granulating, extruding, and opt. orienting and heat-fixing |
| 04/20/1994 | EP0592952A1 Process for the preparation of recycle polyols and their use in the preparation of polyurethanes |
| 04/20/1994 | EP0592738A1 Bottle recycling method and apparatus |
| 04/20/1994 | EP0592494A1 Controlled catalytic and thermal sequential pyrolysis and hydrolysis of mixed polymer waste streams to sequentially recover monomers or other high value products |
| 04/20/1994 | CA2106712A1 Method for recovering pvc and urethane foam from commingled trim waste using elutriators |
| 04/19/1994 | US5304576 Soaking in a solvent to reduce tensile strength, applying shear force to disintegrate rubber from reinforcement; sorting |
| 04/19/1994 | US5303661 Dry process for speedy and continuous recycling discarded rubber |
| 04/14/1994 | WO1993020125A3 Process for the removal of foreign materials from a post-consumer polyethylene terephthalate feed stream |
| 04/14/1994 | DE4234334A1 Sprayable polyurethane coating material, esp. for wear-proofing - by reaction of poly:isocyanate, etc. with a poly:ol component contg. recycled poly:ol and plasticiser |
| 04/14/1994 | DE4233740A1 Separating metal-crosslinked polyethylene@ composites - by swelling the polyethylene@ with alkane, esp. dodecane, at elevated temp. and thus separating the components |
| 04/13/1994 | EP0591895A2 Building, stowing, or filling material |
| 04/13/1994 | EP0591703A2 Method for the generation of electrical power from wastes of plastics material |
| 04/13/1994 | CA2107929A1 Preparation of recyclate polyols, and the use thereof in the preparation of polyurethanes |
| 04/05/1994 | US5300704 Fast pyrolysis of polystyrene and phenolics to recover styrene , cresols and phenol; temperature differentiation |
| 04/05/1994 | US5300530 Process for modifying the glycolysis reaction product of polyurethane scrap |
| 04/05/1994 | US5300229 Process for removing colored components from solvent for polyacrylonitrile |
| 03/31/1994 | WO1994006854A1 Method of and apparatus for regenerating waste polyvinyl chloride |
| 03/31/1994 | WO1994006853A1 Process for isolating cellulose nitrate from non-graphited monobasic propellant powders |
| 03/31/1994 | WO1994006763A1 RECLAIMING ε-CAPROLACTAM FROM NYLON 6 CARPET |
| 03/31/1994 | DE4232501A1 New composite materials - comprise a polymeric matrix and a dispersed phase consisting of particles of cured, opt. recycled thermoset material. |
| 03/31/1994 | CA2123679A1 Method and apparatus for reclamation of waste polyvinyl chloride |
| 03/30/1994 | EP0589642A1 Salvaging organic thermoplastics |
| 03/30/1994 | EP0589077A1 Process of manufacturing a liquid rubber through a recycling method |
| 03/30/1994 | CN1084527A Method and apparatus for regeneration of waste polyvinyl chloride |
| 03/29/1994 | US5298540 Mixing to polymer mixture at least one sterically hindered phenol and one phosphite or phosphonite |
| 03/29/1994 | US5298530 Process of recovering components from scrap polyester |
| 03/29/1994 | US5298128 Process for recovering polyurethane from polyurethane waste pastes |
| 03/23/1994 | CN1084154A 聚合物裂化 Polymer cracking |
| 03/23/1994 | CN1084116A Method for producing toughened rubber and its products |
| 03/17/1994 | DE4230694A1 Collodium wool prepn. from non-graphitised propellant charge powder - with recovery of cellulose nitrate of improved purity and reduced degree of esterification. |
| 03/17/1994 | DE4230572A1 Recycling waste from polymeric materials - by subjecting materials to mechanical shearing and pressure at original crosslinking temp. |
| 03/15/1994 | US5294707 Melting and steaming Nylon 6 in a reactor containing catalyst; separating caprolactam in the distillate |
| 03/15/1994 | US5294384 Thermoplastic composition and method for producing thermoplastic composition by melt blending carpet |
| 03/10/1994 | DE4229711A1 Phenolic resin laminates with good cutting and embossing properties - by impregnating paper etc. with phenolic resin soln. contg. recycled or scrap polyvinyl-butyral, then drying and hot-pressing as usual |
| 03/09/1994 | EP0586212A2 Polymer wood composite |
| 03/09/1994 | CN1083495A Cotton seed-shell fibre compound material and making method thereof |
| 03/03/1994 | DE4328016A1 Packaging material which can be delaminated for recycling - contains layers of plastic, metal foil and/or cellulosic material, sepd. by layer(s) of polymer which is soluble in non-neutral aq. medium |
| 03/03/1994 | DE4301491C1 Recovery of waste synthetic resin lacquer - by mixing with acyl polyethylene glycol ester emulsifier, adding sulphuric acid and PVA soln., removing solvent with steam, etc. |
| 03/03/1994 | DE4233600C1 Treatment of plastic wastes contg. metallic or organic impurities - involves washing with aq. alkaline medium to provide material useful as additive for building materials |
| 03/02/1994 | EP0584612A1 Recycled polystyrene molding |
| 03/02/1994 | EP0584604A1 Filler for bituminous composition |
| 03/02/1994 | EP0584507A2 Process for deinking composite sheets |
| 03/02/1994 | EP0584501A1 Method of reclaiming a plastic product having a paint film |
| 03/01/1994 | US5290505 Moving chopped sheet material in solvent for adhesive under mechanical action to disperse adhesive in solvent, separating adhesive dispersed in solvent from chopped material by mechanical force |
| 03/01/1994 | US5290493 Forming solution of poly/meth/acrylic acid, copolymer of acrylic acid or its salt, or vinyl alcohol-vinyl acetate copolymer; heating; spraying onto core of same resin to form polymer suspension; forming concentrate and recycle portion |
| 02/24/1994 | DE4227506A1 Recycled plastic moulding materials - contain recycled polyamide, recycled fibre-reinforced crosslinked polyester resin, opt. modified ethylene@] copolymer and opt. additives |
| 02/23/1994 | EP0583807A1 A process for preparing high molecular weight polyethyleneterephthalate from recycled PET |
| 02/23/1994 | EP0583743A2 Process for the production of monomeric terephthalic acid diesters and diols from polyesters |
| 02/23/1994 | EP0583595A1 Impact resistant, optionally filled polyamide mixtures with polyamide-polyethylene laminated film wastes |
| 02/23/1994 | CN1082583A Method for producing surface protective agent by using high frequency ocillation |
| 02/22/1994 | US5288934 Process for the conversion of polymers |
| 02/22/1994 | US5288929 Method for removing, condensing and collecting propellants from foam materials |
| 02/22/1994 | US5288772 Pre-treated cellulosic materials for producing molded composite articles therefrom and process |