Patents for C08J 11 - Recovery or working-up of waste materials (9,055)
11/1994
11/02/1994EP0622182A2 Deep-drawable, sealable multilayered foil comprising polyamide and polyolefin, containing a high proportion of recycled material
11/02/1994CN1094417A Direct heating desulfuriying pot and technical specification
11/02/1994CN1026414C Reclaiming method for polyimide film waste material
11/01/1994US5360905 Recovery of caprolactam from oligomers and/or polymers of caprolactam
10/1994
10/31/1994CA2122288A1 Deep-drawable, sealable, multi-layer recycled film based on polyamide and polyolefins with a high content of recycled material
10/31/1994CA2122283A1 Deep-drawable, sealable recycled film in at least three layers, based on polyamide and polyolefins and with a high content of recycled material
10/28/1994CA2121933A1 Method of removing isocyanate from air streams
10/27/1994WO1994024194A1 Polystyrene-dissolving agent
10/27/1994WO1994024188A1 Increasing the molecular weight of polyesters and premix useful for this process
10/27/1994DE4313007A1 Method of separating a plastic from a carrier material
10/26/1994EP0621122A1 Method of recycling molded product of foam particles
10/25/1994US5359099 Controlled catalytic and thermal sequential pyrolysis and hydrolysis of mixed polymer waste streams to sequentially recover monomers or other high value products
10/25/1994US5359061 Controlled heating of mixed plastic waste in stream of carrier gas to first temperature range for first pyrolysis, then to second temperature range for second pyrolysis, separation
10/25/1994US5358119 Separating particles with same density range in a free-fall separator
10/20/1994DE4312037A1 Process for cleaving polycarbonates
10/18/1994US5357006 Preparation of recyclate polyols, and the use thereof in the preparation of polyurethanes
10/18/1994US5356938 Recycling of cured aminoplast resins
10/18/1994US5356278 Apparatus for making a thermoplastic composite
10/13/1994WO1994022979A1 Process for processing used or waste plastic material
10/13/1994CA2158032A1 Process for processing used or waste plastic material
10/12/1994EP0618939A1 Method for treating cross-linked polymers
10/11/1994US5354930 Conversion of polymer wastes into waxes, lubricants
10/11/1994US5354841 Process for preparing poly(arylene sulfide) polymers using cyclic arylene sulfide oligomers
10/11/1994US5354582 Method for utilizing toner fines as an electrostatic spray coating material
10/06/1994DE4322926C1 Process for recycling plastisols
10/06/1994DE4311138A1 Recycling of thermoplastics having thin coatings of melt-inert foreign substances
10/06/1994DE4310850A1 High-impact, filled polyamide mixtures containng polyamide/polyethylene multilayer film scrap
10/05/1994EP0618254A1 Method for recycling painted plastic materials
10/05/1994EP0617984A1 Methods for dechlorination disposal of polyvinyl chloride wastes and apparatus thereof
10/04/1994US5352716 Thermoplastic polymer containing biodegradable component, oxidizable component, transition metal compounds as initiator and catalyst, oxidation promoter, stabilizer
10/04/1994US5352250 Process of treating lacquer coagulum and its use
09/1994
09/29/1994DE4409335A1 Process for removing fibrous components from blend textiles
09/29/1994DE4409334A1 Process for removing cellulosic fibre portions from blend textiles
09/29/1994DE4409333A1 Process for removing cellulosic fibre portions from blend textiles
09/29/1994DE4309427A1 Process for the recycling and disposal of thermoplastic waste
09/29/1994DE4309228A1 Process for the production of granules, extrudates, pellets and mouldings
09/29/1994DE4309139A1 Process for the production of powders and other small and ultra small particles
09/29/1994DE4243368A1 Article made from used plastics
09/28/1994EP0617075A1 Thermoplastic composition and method for producing thermoplastic composition by melt blending carpet
09/27/1994US5350804 Rubber composition containing reclaimed silicone rubber
09/27/1994US5350788 Method for reducing odors in recycled plastics and compositions relating thereto
09/21/1994EP0616006A1 Process for deodorising used foamed mouldings, especially crates of fish
09/21/1994EP0615989A1 Process for the thermoplastic processing of polyurethanes
09/21/1994EP0542806B1 Process for producing polyol-containing dispersions and their use
09/20/1994US5349091 Process for recycling cured polysulfide sealants
09/19/1994CA2119001A1 Process for the thermoplastic working up of polyurethanes
09/17/1994CA2119167A1 Methods for dechlorynation disposal of polyvinyl chloride wastes and apparatus thereof
09/15/1994DE4307677A1 Process for the recycling of polystyrene foam scrap
09/14/1994EP0614932A1 Method of and apparatus for regenerating waste polyvinyl chloride
09/14/1994EP0614403A1 Process for removing contaminants from polyolefins for recycle
09/14/1994EP0536222B1 Method for treating cross-linked eva-based polymers, and uses thereof
09/08/1994DE4327037C1 Process for drying adhesive substances
09/08/1994DE4306964A1 Process for the preparation of hydroxyalkyl ethers of oligocarbonates
09/07/1994EP0613922A1 Process for reusing lacquer wastes
09/07/1994EP0613417A1 Manufacture of a multilayered covering
09/06/1994US5344851 Process for recovering binder components from lacquer sludge
09/04/1994CA2116607A1 Process for reusing the overspray obtained from spraying coating compositions
08/1994
08/31/1994EP0613053A1 Process for removing plastics from microstructures
08/31/1994EP0612793A1 Process for recycling cured aminoplast resins
08/31/1994EP0612727A2 Semi-continuous depolymerization of nylon 6 polymer
08/31/1994EP0538323B1 Method of preparing water-swellable products using very fine particles of water-swellable polymers
08/30/1994US5342899 Process for recycling aqueous fluid absorbents fines to a polymerizer
08/30/1994US5342884 Compositions prepared using finely-divided isocyanate based thermoset polymers
08/30/1994US5342863 Ultrafiltration processes for the recovery of polymeric latices from whitewater
08/30/1994US5342854 Dissolving polyester in sulfone solvent, separating from cotton fabric, filtering cotton, allowing dissolved polyester solution to phase out with time
08/25/1994DE4306348A1 Process for detaching aluminium layers and all material layers possibly lying thereover from plastics lying thereunder which are not films
08/25/1994DE4306347A1 Process for separating plastic-metal-material multilayer films, at least one of the metal layers lying between a plastic and a material layer
08/23/1994US5340839 Method for salvaging organic thermoplastic values from discarded surface treated organic thermoplastic substrates
08/18/1994WO1994018286A1 Thermal treatment of carbonaceous material
08/18/1994CA2153808A1 Thermal treatment of carbonaceous material
08/17/1994EP0610719A2 Process for the preparation of hydroxyl group containing compounds from (polyurethane) polyurea waste
08/16/1994US5338763 Process for the preparation of compounds containing hydroxyl groups and their use in the production of polyurethane resins
08/11/1994CA2115192A1 Process for removing plastics from microstructures
08/10/1994CN1090569A Improved method for recovery of alkali metal or alkaline-earth metal terephthalate and of alkyleneglycol from polyethylene terephthalates
08/09/1994US5336755 Precipitating with acid or alkaline precipitant
08/09/1994US5336016 Rubber vehicular impact barrier
08/09/1994CA2114873A1 A process for the production of hydroxyfunctional compounds from (polyurethane) polyurea waste
08/03/1994EP0608454A1 Process and apparatus for producing polyamide-6 from polyamide waste
08/02/1994US5334255 Method for removing and reclaiming excess paint from a paint spray booth
07/1994
07/27/1994EP0608157A1 Fast process to reclaim cured or semi-cured rubber
07/27/1994EP0607502A1 Process for recycling solvent-containing wastes of synthetic resin varnishes
07/27/1994EP0607324A1 Use of non-woven, needled fibrous mat material.
07/27/1994CN1089964A Fast process to reclaim cured of semi-cured rubber
07/21/1994WO1994016005A1 Depolymerization agent and method of depolymerizing silicones
07/21/1994WO1994016004A1 Separation of nylon 6 from mixtures with nylon 6,6
07/21/1994DE4301097A1 Polyamide hot-melt adhesives prodn., esp. from polyamide re-granulate
07/19/1994US5331065 Waste treatment, reaction with oxazoline compounds
07/13/1994EP0605825A1 Thermoplastic plastics moulding matter, process of manufacture and moulding made therefrom
07/13/1994CN1089117A Recycling cellulose esters from the waste from cigarette manufacture
07/12/1994US5328934 Contacting cellulose acetate polymer with a supercritical fluid
07/07/1994WO1994014896A1 Treatment of rubber to form bituminous compositions
07/07/1994WO1994014883A1 Methods and devices for purifying polyolefin
07/06/1994EP0604838A1 Multiaxially reinforced liquid crystal polymer sheet
07/05/1994US5326927 Distillation
07/05/1994US5326919 Monomer recovery from polymeric materials
07/05/1994US5326791 Process for separation of hydrolyzable from non-hydrolyzable waste plastics for recovery of starting materials and other conversion processes, respectively
06/1994
06/30/1994DE4241645A1 Recovery and recycling of plastic from material combinations
06/29/1994EP0603434A1 Polyamide recovery
06/29/1994EP0442866B1 Method and plant for separation of synthetic water soluble polymers
06/23/1994WO1994013757A1 Method of obtaining a polymerizable fraction of recyclable material
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