Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7452919 | Clarity, low haze polymer A method of manufacturing an improved clarity, low haze, low melt flow rate homopolymer polypropylene and thermoformed parts therefrom using an additive package such that the additive package alone provides the improved qualities, and process adjustments at the ther... | 11/18/2008 |
| 7347007 | Low pressure high capacity dryer for resins and other granular and powdery materials A vacuum dryer and method for drying granular or powdery material including at least one canister for holding said material being movable among a series of locations including material heating and vacuum drying locations, means for moving said canister among said lo... | 03/25/2008 |
| 7321003 | Methods of reducing polystyrene foams using dibasic esters with extruders The present invention is directed to novel polystyrene foam reduction recycling compositions and methods that solve the volume problem of recycling polystyrene foam materials while simultaneously allowing the easy and inexpensive shipment of the foamed materials aft... | 01/22/2008 |
| 7234247 | Low pressure dryer A low pressure dryer for granular or powdery material includes a plurality of canisters rotatable about a common vertical axis serially among material heating, vacuum drying and material inventory discharge positions; pneumatic piston-cylinder means for rotating the... | 06/26/2007 |
| 7226956 | Low density polymeric foam using a three-polymer blend A polymeric composition to be used in producing low density foam in which the polymeric composition comprises high density polyethylene, alkenyl aromatic polymer and a linear low density polyethylene. The polymeric resins may be prime virgin resin, offgrade virgin r... | 06/05/2007 |
| 7135503 | Method for reclaiming polyester or polyester mixtures The invention relates to a method for reclaiming polyesters or polyester mixtures from polyester or waste containing polyester. The aim of the invention is to reclaim polyesters or polyester mixtures of good quality in a cost-effective manner. To achieve this aim, t... | 11/14/2006 |
| 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 |
| 7087671 | Recycled plastic molded parts for photosensitive materials A front cover, a rear cover and a base portion are crushed into a crushed material, and further pelletized into a recycled plastic pellet. The recycled plastic pellet is used as a part of a molding material to produce mold plastic parts for a photosensitive material... | 08/08/2006 |
| 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 |
| 7037951 | Process for regenerating resins The present invention is a process for regenerating a used resin and prevents deterioration in the quality of the resin by adding to the used resin an another resin having given physical properties superior to those of the used resin and then regenerating the resin.... | 05/02/2006 |
| 6946495 | Foamable composition using recycled or offgrade polypropylene A polymeric composition to be used in producing foam in which the polymeric composition comprises conventional linear polypropylene, high melt strength polypropylene and a rheology modifier resin. The conventional linear polypropylene is in an amount of from about 1... | 09/20/2005 |
| 6864294 | RECYCLED PLASTIC MATERIAL, ELECTRONIC APPARATUS HAVING THE RECYCLED PLASTIC MATERIAL, METHOD OF MANUFACTURING PLASTIC PART, METHOD OF MANUFACTURING THE RECYCLED PLASTIC MATERIAL, AND METHOD OF REUSING PLASTIC MATERIAL A recycled plastic material is made from laser-engraved thermoplastic, metal-containing thermoplastic, thermoplastic used in an inkjet apparatus, or thermoplastic to which an ink or its composition have stuck. This recycled plastic material is manufactured by pulver... | 03/08/2005 |
| 6861568 | Process for waste plastic recycling A process for recycling or decomposing waste plastic where such wasteplastic is decomposed in a diluent such as hot oil through actions involvingfree radical precursor, such as polyvinyl chloride or polyurethane, is achievedat low temperature. The thermal decomposit... | 03/01/2005 |
| 6844418 | Waste plastic additive for asphalt The present invention provides an improved polymer additive which may be used to increase the high temperature viscosity of an asphalt, without deleteriously affecting the low-temperature viscosity of the asphalt. The polymer additive may also be used to improve the... | 01/18/2005 |
| 6756412 | Fiber-reinforced recycled thermoplastic composite and method Fiber reinforced recycled thermoplastic composites and methods for their manufacture are presented. In a preferred embodiment, the thermoplastic composite incorporates a matrix of recycled thermoplastic and a plurality of high modulus, reinforcing fibers, with the r... | 06/29/2004 |
| 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 |
| 6703445 | Molding thermoplastic resin material and a method for equal quality recycle of thermoplastic resin mold The object of the present invention is to provide a molding thermoplastic resin material giving resin mold whose quality and value are substantially equal to original resin mold even in a case where said resin mold is recycled. To attain said object, olef... | 03/09/2004 |
| 6638589 | Method and apparatus for using recycled plastic material, and a plastic product made by an extruder The invention relates to a method and apparatus for using recycled plastic material, and to a plastic product produced by an extruder. In the invention, crosslinked polyethylene is ground to powder form and mixed with e.g. polyethylene so that the proport... | 10/28/2003 |
| 6610763 | Polymer composition, the production and further processing thereof into receptacles A process for preparing a container for handling a household waste material which involves molding a household waste container from a plastic batch material containing 0.1 to 10% by weight of at least one phenol biocide selected from the group consisting ... | 08/26/2003 |
| 6555588 | Method for the production of a polypropylene blend A method for producing a polypropylene blend from a plastic packaging materials containing high molecular weight polypropylene, other high molecular weight polymers such as polyethylene, low molecular weight polymers and other contaminants. The method inc... | 04/29/2003 |
| 6548559 | Thermoplastic compositions and methods A new composition is formed by combining a reduced waste rubber, a heavy paraffin and a reduced waste thermoplastic, and then further reducing the resulting material while holding it at an elevated temperature. In preferred embodiments the rubber and ther... | 04/15/2003 |
| 6500872 | Method for recycling waste styrene resin A recycling method which enables recycling of a high-quality regenerated styrene resin. A waste styrene resin material is dissolved in an organic solvent boiling at a temperature lower than 200° C. and having solubility not less than 15 wt % at room temp... | 12/31/2002 |
| 6489372 | Polycarbonate isolation through homogenization devolatization Polymer are removed from organic solvent-polymer mixtures by preparing a liquid-liquid dispersion of finely dispersed solvent droplets containing polymer in water, adding this liquid-liquid dispersion to a stirred vessel containing water or other suitable... | 12/03/2002 |
| 6403661 | Volume reducing agents for expanded polystyrene, methods and apparatus for processing expanded polystyrene using the same A volume reducing agent for processing expanded polystyrene (EPS), containing 65-97 wt % of a first plasticizer having a solubility parameter less than the solubility parameter of the polystyrene; and 3-35 wt % of a second plasticizer having a solubility ... | 06/11/2002 |
| 6387967 | Fiber-reinforced recycled thermoplastic composite and method Fiber-reinforced recycled thermoplastic composites and methods for their manufacture are presented. In a preferred embodiment, the thermoplastic composite incorporates a matrix of recycled thermoplastic and a plurality of high modulus fibers, with the rec... | 05/14/2002 |
| 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 |
| 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 |
| 6326408 | Transformation of expanded polymers The invention concerns the transformation of expanded polymers, in particular styrene polymers of the polystyrene type and styrene copolymers. More particularly it concerns a method for transforming polymers in an expanded solid state into a non-expanded ... | 12/04/2001 |
| 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 |
| 6271270 | Fiber-reinforced recycled thermoplastic composite Fiber-reinforced recycled thermoplastic composites and methods for their manufacture are presented. In a preferred embodiment, the thermoplastic composite incorporates a matrix of recycled thermoplastic and a plurality of high modulus fibers, with the rec... | 08/07/2001 |
| 6225360 | Method and system for recovering polyethylene from waste resin-compounds Method and system for recovering polyethylene from a polyethylene-containing scrap material. The recovery method includes the steps of putting the scrap material containing polyethylene into a solvent mixture containing a polyethylene-soluble solvent and ... | 05/01/2001 |
| 6180685 | Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state shear pulverization A method of making polymeric particulates wherein polymeric scrap material, virgin polymeric material and mixtures thereof are supplied to intermeshing extruder screws which are rotated to transport the polymeric material along their length and subject th... | 01/30/2001 |
| 6169121 | Method and apparatus for recycling styrene resin There is provided a processing method for effectively and promptly removing insoluble components contained in a solution of a styrene resin waste material to enable regeneration of high-quality regenerated styrene. To this end, a solution of the styrene r... | 01/02/2001 |
| 6133414 | Decomposing polymers using NOR-HALS compounds A method is described for the decomposition of polymers, especially waste plastics and used plastics, in which so-called NOR--HALS compounds--that is, for example, compounds comprising the group ##STR1## in which R* is C1 -C20 a... | 10/17/2000 |
| 6127435 | Process for the treatment of ground polyolefin material, ground material obtained by this process and use thereof for the production of shaped objects Process for the treatment of ground polyolefin material originating from scrap dairy product containers with at least one agent chosen from hydrogen peroxide, steam and sodium hydroxide in a quantity which is effective for deodorizing the polyolefin. Grou... | 10/03/2000 |
| 6121334 | Gas handling for plastics liquefaction The present invention relates to a method for removing high molecular weight high melting point hydrocarbon vapors from a hydrocarbon vapor offgas stream produced during the liquefaction of a solid waste plastic material to produce an oil that serves as a... | 09/19/2000 |
| 6069182 | Recycling of plastic waste containing a mixture of polyurethanes with other plastics A process for recycling plastic waste containing a mixture of polyurethanes and other plastics, comprises reacting the plastic waste with an alcohol mixture comprising at least one low-molecular-weight, at least difunctional alcohol and at least one polye... | 05/30/2000 |
| 6043289 | Catalyzed degradation of thermoplastic polyolefins and incorporation of the degradation products into heavy hydrocarbons A process for degrading thermoplastic polyolefins, in particular high or medium density polyethylenes, uses as a catalyst a mineral solid containing copper or a mineral solid containing aluminium and silicon and with an acid nature, at a temperature of 20... | 03/28/2000 |
| 5994417 | Process for recovering polymers from commingled materials A process for recovering polymers from commingled materials is disclosed. In general, the process includes first contacting the commingled materials with a solvent which selectively dissolves the polymer to form a solvent and polymer solution. The solvent... | 11/30/1999 |
| 5922835 | Method for compacting expanded polystyrene The inventions refers to a method of compacting expanded polystyrene (EPS). EPS, especially in the state of waste, constitutes a problem due to its voluminous nature. High logistic costs are connected with this voluminous nature and therefore it is diffic... | 07/13/1999 |
