Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7846986 | Method for obtaining a polymer in a solution Process for recovering at least one polymer in solution in a solvent by precipitation by means of a non-solvent introduced gradually into the solution to form the precipitation medium, whereby: in the course of the introduction of ... | 12/07/2010 |
| 7790777 | Method for recovering a polymer in solution Process for recovering at least one polymer in solution in a solvent by precipitation by means of a non-solvent fluid, whereby the precipitation takes place in a precipitation medium comprising two dispersants of which one [dispersant(I)] has a greater affinity for ... | 09/07/2010 |
| 7361401 | Surface coverings containing fused recycled material and processes of making the same A backing or an intermediate layer for a surface covering is described which comprises a fused recycled material, wherein the material comprises a thermoplastic material, for instance, a vinyl material from a vinyl backed carpet or vinyl backed carpet manufacturing ... | 04/22/2008 |
| 7338981 | Separation of contaminants from polyester materials The present invention is generally directed to a process for separating and recovering post-consumer polyester from various contaminant materials. The invention can be utilized to separate post-consumer polyester from various contaminants including glass, dirt, pape... | 03/04/2008 |
| 7235282 | Method of treating the surface of an aged PVC object A process for the treatment of natural discoloration in an article, particularly a vinyl chloride polymer article, by treating the surface of the article in ambient air with a first organic solution containing an organic peroxide and a first organic solvent. The inv... | 06/26/2007 |
| 7232276 | Road reinforcement sheet, structure of asphalt reinforced pavement and method for paving road A paved road including a reinforcement sheet layer (1A) and a pavement layer (22), in which the reinforcement sheet layer (1A) includes an asphalt layer (2) laminated to at least one side of a reinforcement sheet (1) including a co... | 06/19/2007 |
| 7170038 | Molding compounds for use in induction heating applications and heating elements molded from these compounds The invention provides molding compounds that are particularly suitable to be molded into an article such as a heating element that will conduct heat and not burn when an electric current is passed through the article. These compounds are generally liquid thermosett... | 01/30/2007 |
| 7135546 | Method for recycling vinyl polymer-based articles Process for recycling an article based on at least one vinyl chloride or vinylidene chloride polymer, according to which: (a) the article is cut up into fragments with a mean size of 1 cm to 50 cm in the case where it would exceed these sizes; ... | 11/14/2006 |
| 7098299 | Separation of contaminants from polyester materials The present invention is generally directed to a process for separating and recovering post-consumer polyester from various contaminant materials. The invention can be utilized to separate post-consumer polyester from various contaminants including glass, dirt, pape... | 08/29/2006 |
| 7087655 | Separation process for multi-component polymeric materials A method of separating at least one polymer from a mixture of polymers. The method includes adjusting the temperature of the mixture, either by heating or cooling, to bring the temperature to a temperature at which decombination of the polymer mixture occurs. Mechan... | 08/08/2006 |
| 7060787 | Extraction of impurities from grafted polyolefins A process for purifying grafted polyolefins by extraction is disclosed. The purified grafted polyolefins have improved color and adhesion properties. The extraction is performed with an azeotropic solvent that is strong enough to extract impurities but does not caus... | 06/13/2006 |
| 7056956 | Method for recycling a plastic material Process for recycling a plastic, according to which the plastic is brought into contact with a solvent capable of dissolving the same and the plastic dissolved in the solvent is precipitated using a non-solvent in the presence of a phase-separating agent, in which t... | 06/06/2006 |
| 6989404 | Method of recovering polyvinyl chloride and apparatus therefor Disclosed is a polyvinyl chloride recovering method for recovering polyvinyl chloride from waste including polyvinyl chloride by a continuous operation, and an system for carrying out the method, wherein the method comprises: an insoluble solid matter removing proce... | 01/24/2006 |
| 6936201 | Surface coverings containing fused recycled material and processes of making the same A backing or an intermediate layer for a surface covering is described which comprises a fused recycled material, wherein the material comprises a thermoplastic material, for instance, a vinyl material from a vinyl backed carpet or vinyl backed carpet manufacturing ... | 08/30/2005 |
| 6902002 | Cement compositions comprising improved lost circulation materials and methods of use in subterranean formations The present invention relates to subterranean cementing operations and, more particularly, to cement composition that include improved lost circulation materials, and methods of using such cement compositions in subterranean formations. In certain exemplary embodime... | 06/07/2005 |
| 6723759 | Recycled resin composition and method for producing the same Disclosed is a recycled resin composition having physical properties, a feeding property as well as a moldability which are by no means inferior as compared with the raw material resin composition, even when a ratio of recycled material in recycled resin composition... | 04/20/2004 |
| 6632918 | Method of reclaiming crosslinked rubber The object of the present invention is to provide a method of reclaiming crosslinked rubber, which can reclaim various kinds of crosslinked rubbers whose reclamation is difficult. The method of reclaiming crosslinked rubber 10 of the present invention inc... | 10/14/2003 |
| 6548561 | Method and device for recovering pure PVC from plastic waste containing PVC In a method for recovering pure PVC from pre-disintegrated PVC containing substance mixtures, the substance mixture is soaked in a swelling agent for PVC, is supplied under pressure into an arrangement of at least two sequential hydrocyclones, wherein, in... | 04/15/2003 |
| 6525158 | Process for the stabilization of a stabilizer mixtures for recycled plastic mixtures Recycled mixtures of plastics, predominantly thermoplastics, as predominantly produced in the household, in commerce and also in industry and useful material collections, can be stabilized against thermooxidative degradation by adding a combination of a s... | 02/25/2003 |
| 6384093 | Method of melt processing crosslinked thermoplastic material A method of enhancing the melt-processibility of crosslinked plastic or recycling crosslinked plastic and the products formed by these methods. The melt processibility of a crosslinked thermoplastic resin may be enhanced by mixing it with a low viscosity ... | 05/07/2002 |
| 6376563 | Inline solid state polymerization of PET flakes for manufacturing plastic strap by removing non-crystalline materials from recycled PET A process for preparing a PET flake mixture for use in connection with the fabrication of high-performance plastic strapping comprises the steps of initially collecting post-consumer and non-post-consumer PET materials having an initially wide range of re... | 04/23/2002 |
| 6372807 | Process for the conversion of mixed plastic waste The invention relates to the conversion of a mixed plastic waste by means of mechanical treatment of the starting material mixture in the presence of a mineral oil. The essence of the invention consists therein that a crushed plastic waste mixture contain... | 04/16/2002 |
| 6306222 | Process for cleaning plastics for recycling them A process for cleaning plastic materials is disclosed, in which foreign materials adhered on and internally intruded into the plastic materials are cleaned to recycle the plastic materials. The process for cleaning plastics to recycle them according to th... | 10/23/2001 |
| 6288131 | Inline solid state polymerization of pet flakes for manufacturing plastic strap A process for preparing a PET flake mixture for use in connection with the fabrication of high-performance plastic strapping comprises the steps of initially collecting post-consumer and non-post-consumer PET materials having an initially wide range of re... | 09/11/2001 |
| 6284808 | Inline solid state polymerization of PET flakes for manufacturing plastic strap by removing non-crystalline materials from recycled PET A process for preparing a PET flake mixture for use in connection with the fabrication of high-performance plastic strapping comprises the steps of initially collecting post-consumer and non-post-consumer PET materials having an initially wide range of re... | 09/04/2001 |
| 6172125 | Process for recycling articles based on vinyl chloride polymers Process for recycling an article based on at least one vinyl chloride polymer, in which: (a) the article is shredded into fragments having an average dimension of 1 cm to 50 cm, should it exceed these dimensions; (b) the fragments of the article, which are sub... | 01/09/2001 |
| 6127434 | Recycling process of a cross-linked polymeric material, in particular from electric cable coating materials A process for dereticulating a cross-linked polymeric material, such as cross-linked polyethylene from scraps of electric cable coatings or from unused cable coatings through a mechanical mixing cycle, wherein the cross-linked material is subjected to a s... | 10/03/2000 |
| 6114401 | Plastic reclamation process A plastic article or plastic container reclamation process if provided in which plastic containers are divided into relatively large pieces, then washed, agitated and separated using an aqueous solvent to remove residual materials. The residual materials ... | 09/05/2000 |
| 5674914 | Method and apparatus for reclamation of waste polyvinyl chloride A method of reclaiming waste polyvinyl chloride according to the present invention includes the steps of bringing industrial waste containing polyvinyl chloride into contact with a solvent in which polyvinyl chloride can be dissolved, to remove polyvinyl ... | 10/07/1997 |
| 5665784 | Recovery of polyester from spent film Spent photographic film having at least a polyester base, blue dye, and a polyvinylidene binder layer, and from which the photographic emulsion has been removed, is treated to recover usable polyester. The spent photographic film is heated in cyclohexanon... | 09/09/1997 |
| 5635556 | Thermoplastic resin compositions having improved performance A heat resistant polymer such as a styrene maleic anhydride copolymer which has been contaminated with a minor amount of a vinyl chloride polymer such as polyvinyl chloride may be stabilized sufficiently by incorporation of calcium carbonate to allow cont... | 06/03/1997 |
| 5554657 | Process for recycling mixed polymer containing polyethylene terephthalate The invention described herein provides a process for recycling a mixed polymer recycle stream containing polyester polymers, particularly polyethylene terephthalate (PET) typically in the form of carbonated soft drink or other containers. This novel proc... | 09/10/1996 |
| 5504122 | Recovery of dimethyl terephthalate from polymer mixtures Dimethyl terephthalate is recovered from polymer mixtures containing polymers of terephthalic acid and glycol and a chloride polymer, by adding base to neutralize the hydrochloric acid formed by the degradation of the chloride polymer.... | 04/02/1996 |
| 5475036 | Process for reusing plastic articles with coatings A process for reusing a plastic article having a plastic body and a coating layer is discloses which includes the following steps: peeling the coating layer, formed on the plastic body, away from the plastic body by using a high pressure water jet stream;... | 12/12/1995 |
| 5468779 | Method for recycling painted plastic materials A plastic material with a paint film is coarse-crushed, and a film decomposition agent, e.g. a heterocyclic compound such as imidazole, a triazine compound such as benzoguanamine, a phenylendiamine compound such as N-phenyl -N'-isopropyl-p-phenylene diami... | 11/21/1995 |
| 5464876 | Process for the recovery of valuable materials during the work-up of polyvinyl chloride Heating of polyvinyl chloride, in particular plasticizer-containing polyvinyl chloride, to a temperature of from 250° to 500° C. in the absence of oxygen gives a low-chlorine, carbon-containing residue, plasticizer and hydrogen chloride.... | 11/07/1995 |
| 5464877 | Method for recovering a synthetic waste material contaminated with other materials A method for recovering a synthetic waste material contaminated with other materials, particularly waste optical disks, wherein the loose, uncrushed waste is chemically treated by impregnating said other materials with a chemical solution which attacks th... | 11/07/1995 |
| 5399433 | Polyvinyl chloride-polyethylene terephthalate separation product A hydrophobic polyvinyl chloride chip composition is described which has a preferred affinity for air when in water. The chip is supernatant in water after contact with air and has a skin layer containing a surface conditioning agent. A method for separat... | 03/21/1995 |
| 5377844 | Separation of normally hydrophobic plastic materials by froth flotation A targeted particulate, synthetic organic plastic material having normally hydrophobic surface characteristics is separated from a mixture of two or more of such plastic materials by conditioning the mixture of plastic materials in a flotation cell with a... | 01/03/1995 |
| 5288760 | Separation and salvage of components of parts Laminated scrap produced by a reaction injection molding process, comprising a thermoplastic resin substrate and a vinyl skin, together with a polyurethane foam layer disposed therebetween, is ground with cryogenic coating. Thereafter, the granulated part... | 02/22/1994 |
