Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7425584 | Catalytic devulcanization of rubber The present invention relates generally to the delulcanization of rubber. More specifically, the present invention relates to a process for the hydro-devulcanization of vulcanized rubber utilizing a rubber swelling solvent, a source of reactive hyrogen and elevated ... | 09/16/2008 |
| 7189445 | Synthetic sports turf having improved playability and wearability A durable and wear resistant synthetic sports field having at least one strip having a plurality of fibrillated polypropylene strands tufted within a multilayer backing material. The strands are tufted in a wide variety of pile heights, patterns, gauges, and stitch ... | 03/13/2007 |
| 7163292 | Hybrid contact lens system and method Methods of manufacturing hybrid contact lenses using a mold are provided. The methods include pouring liquefied resin of a substantially rigid material within an inner section, curing the substantially rigid material, pouring liquefied resin of a substantially flexi... | 01/16/2007 |
| 6956065 | Method for devulcanizing rubber with an amine The invention relates to a method for devulcanizing a sulphur-cured rubber, which rubber contains a network of a polymer, which polymer has a main chain of carbon atoms, in which for the vulcanization per 40 carbon-carbon bonds in the main chain a maximum of 1 unsat... | 10/18/2005 |
| 6831109 | Modifier for devulcanization of cured elastomers, mainly vulcanized rubber and method for devulcanization by means of this modifier The invention provides a modifier for devulcanization of cured elastomers, and especially vulcanized rubber, said modifier containing a first chemical substance, which is disposed towards on and the formation of an organic cation and amine, and further containing a ... | 12/14/2004 |
| 6590042 | Recycled rubber processing and performance enhancement A process for reclaiming sulfur-cured, vulcanized rubber by combining finely ground scrap vulcanized rubber within a specialized, twin-screw extruder capable of providing strong shearing and just-on-time mixing; adding a reclaiming agent to the extruder; ... | 07/08/2003 |
| 6583211 | Moldable composite material A moldable heterogeneous composite material has a continuous plastic phase (30) and a discrete phase of unground rubber (20) dispersed in the continuous phase. The composite material can be formed from thermoplastic or thermosetting materials and pieces o... | 06/24/2003 |
| 6573303 | Thermoplastic elastomers and polymers derived from recycled rubber and plastics Materials ranging from impact-modified thermoplastics to thermoplastic elastomers (TPE) can be obtained from blends of phase compatibility-treated recycled thermoset rubber with thermoplastic polymers by varying the ratio of components in the blend, or by... | 06/03/2003 |
| 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 |
| 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 |
| 6156828 | Rubber base asphalt emulsion method A gel-like emulsion containing natural rubber and crumb rubber from used vehicle tires which may be added to an asphalt paving emulsion at ambient temperature for chip coating, slurry sealing, microsurfacing, soil stabilization or pavement recycling.... | 12/05/2000 |
| 6110580 | Recycling trim components for vehicles The invention relates to a method for the recycling of trim components of vehicles. The method comprises the steps of shredding manufacturing scrap and post-consumer scrap from vehicle headliners into small particles to produce fluff. This fluff is then c... | 08/29/2000 |
| 6090862 | Process for recycling polyolefin cross-linked substance or polyolefin foamed substance A process is developed for recycling a polyolefin cross-linked substance having a cross-linkage, a polyolefin foamed substance free from a cross-linkage or a polyolefin foamed substance having a cross-linkage. The process includes the step of heating the ... | 07/18/2000 |
| 6087406 | Recycle of vulcanized fluorinated elastomers Compositions and techniques useful to effectively recycle crosslinked (i.e., vulcanized or cured) fluoroelastomers are disclosed. The invention utilizes an additive system that includes a cure-enhancing additive, a crosslinking agent, and an accelerator.... | 07/11/2000 |
| 5905095 | Used tire process A method of processing used tires and the recovery of the products thereof. The process includes adding shredded automobile tire to a bath containing a combination of isocyanide, polyurethane, latex, and soybean oil. The resultant mixture is then heated a... | 05/18/1999 |
| 5824745 | Resin composition Post consumer recyclable plastics are combined with a ethylene-octene copolymer and a polyamide to prepare a resin composition that can be used in conventional molding processes to fabricate new and useful plastic articles of manufacture.... | 10/20/1998 |
| 5770632 | Reclaiming of elastomeric materials A process for reclaiming elastomeric material from elemental sulphur-cured elastomeric material having a vulcanized network without using hexamethylene tetramine, by treating the sulphur-cured elastomeric material having a vulcanized network with one or m... | 06/23/1998 |
| 5731358 | Process for the manufacture of high grade devulcanized rubbers from scrap and reject rubber items A process for the manufacture of devulcanized rubbers from a base material composed of scrap rubber products is provided which produces high grade, low viscosity rubber products. The process is carried out in at least two stages, the first stage comprisin... | 03/24/1998 |
| 5717050 | Hypoallergenic natural rubber products from parthenium argentatum (gray) and other non-hevea brasiliensis species Hypoallergenic products are made from Parthenum argentatum (Gray), Ficus elastica and other non-hevea rubber-containing plants by homogenizing the plants in an aqueous medium, filtering the homogenate and separating the rubber-containing phase from the aq... | 02/10/1998 |
| 5677354 | Process for reclaiming cured or semi-cured rubber A process for reclaiming cured or semi-cured rubber, by subjecting a mass of rubber to be reclaimed to a solvent effective to swell said mass, passing the formed swollen mass of rubber through restriction means having small openings, such as a perforated ... | 10/14/1997 |
| 5639801 | Processing of anhydride-containing thermoplastic resins An anhydride-containing thermoplastic resin such as a styrene maleic anhydride copolymer is processed in a vented extruder in the present of a nitrogenous chemical blowing agent to both imidize at least a portion of the anhydride groups and remove volatil... | 06/17/1997 |
| 5618852 | Used tire process A method of processing used tires and the recovery of the products thereof. The process includes adding shredded automobile tire to a bath containing a combination of isocyanide, polyurethane, latex, and soybean oil. The resultant mixture is then heated a... | 04/08/1997 |
| 5607981 | Method of manufacture of paint and adhesive rubber from vulcanized rubber Method of manufacture of paint and adhesive of rubber from vulcanized rubber that is reclaimed, becoming a product that provides impermeability, flexibility and resistance to the pellicle by process of reduction to small particles through cracking beater ... | 03/04/1997 |
| 5605721 | Shock absorbing underlayment for artificial playing surfaces The present invention is directed to an underlayment composition for an artificial playing surface comprised of a butadiene rubber, such as polybutadiene or styrene-butadiene that is commercially available as recycled polycord tires that have been granuli... | 02/25/1997 |
| 5594035 | Reclamation of polymers, that contain styrene in the polymeric backbone, using a water soluble solvent based reclamation process A process for the reclamation of polystyrene and other styrene containing polymers, by dissolving said polystyrene polymer into a water soluble solvent, such as NMP, and then precipitating said polymer away from the water soluble solvent through the addit... | 01/14/1997 |
| 5580942 | Hypoallergenic natural rubber products from parthenum argentatum (gray) and other non-hevea brasiliensis species Hypoallergenic products are made from Parthenum argentatum (Gray), Ficus elastica and other non-hevea rubber-containing plants by homogenizing the plants in an aqueous medium, filtering the homogenate and separating the rubber-containing phase from the aq... | 12/03/1996 |
| 5556888 | Rubber compounds containing vulcanized scrap rubber, methods of manufacturing such rubber compounds A rubber compound obtained by compounding a raw rubber, powdered vulcanized scrap rubber with its surface partially processed via a swelling treatment, a vulcanizing agent and a vulcanizing accelerator. When manufacturing the compound, the scrap rubber is... | 09/17/1996 |
| 5523328 | Process and apparatus for extruding mixtures of thermoplastic and thermoset materials and products made therefrom Disclosed as one embodiment is a method of producing useful articles from ground whole tire waste, which includes the steps of continuously extruding a heated mixture of ground whole tire waste and thermoplastic binder material into a continuously cooled,... | 06/04/1996 |
| 5514722 | Shock absorbingg underlayment for artificial playing surfaces The present invention is directed to an underlayment composition for an artificial playing surface comprised of a butadiene rubber, such as polybutadiene or styrene-butadiene that is commercially available as recycled polycord tires that have been granuli... | 05/07/1996 |
| 5397825 | Rubber recycling process and product An active filler composition utilizing scrap rubber, such as automobile tires, as a main or primary ingredient is used in the treatment, recycling, and manufacture of various rubber and plastic articles. A chemical plasticizer and binding agent is used in... | 03/14/1995 |
| 4871809 | Railroad flangeway filler and expansion joint sealer A flangeway filler and sealing composition suitable for use in a flangeway or expansion joint in a railroad crossing of a roadway surface prepared by the steps of (i) placing cryogenically granulated elastomeric particles in a suitable container; (ii) add... | 10/03/1989 |
| 4426459 | Process for decomposing vulcanized rubber A process for decomposing vulcanized rubber which comprises swelling 100 parts by weight of vulcanized rubber with 10-3000 parts by weight of an organic solution, and adding and mixing 0.1-20 parts by weight of an organic hydroperoxide (a) and of 0.001-1 ... | 01/17/1984 |
| 4264481 | Process of reclaiming rubber Chemical direct reclaiming of rubber by mixing pulverulent scrap rubber having a particle size of at most 1 mm with a reducing agent, an oxidizable iron metal chloride and at least one plasticizer. The mixture is agitated for a short time, in the solid ph... | 04/28/1981 |
| 4257925 | Plastics material incorporating reclaimed tire rubber Large quantities of reclaimed tire rubber can be incorporated into plastics material without seriously impairing its impact strength by a method which comprises the steps of swelling the reclaimed tire rubber with a quantity of monomer which is insufficie... | 03/24/1981 |
| 4243561 | Composition and method of improving the green strength of unvulcanized [elastomer] reclaimed rubber elastomer blends The green strength of elastomers is improved by the addition of semi-crystalline butene polymers selected from the class consisting of polybutene and interpolymers made from 1-butene monomer and at least one monomer selected from the class consisting of a... | 01/06/1981 |
| 4211676 | Process for reclaiming scrap vulcanized rubber Scrap vulcanized rubber is reclaimed by mixing with a reclaiming agent selected from (a) 1,8-diazabicyclo-[5,4,0]-undecene-7, (DBU) (b) phenol salts of DBU, (c) carboxylic acid salts of DBU, (d) thiuramsulfide compounds, (e) aromatic disulfides, and (f) b... | 07/08/1980 |
| 4161464 | Devulcanized rubber composition and process for preparing same A devulcanized rubber composition is disclosed which is obtained by low temperature phase transfer catalyzed devulcanization of commercial scrap rubber, such as a vulcanized polyisoprene rubber, butadiene-styrene rubber, cis-polybutadiene rubber used for ... | 07/17/1979 |
| 4137204 | Cationic method for emulsifying asphalt-rubber paving material and a stable thixotropic emulsion of said material A new method is provided for emulsifying an asphalt-rubber pavement repair material into a stable thixotropic emulsion capable of flowing as a liquid upon gentle agitation. The method generally comprises the steps of heating asphalt and rubber to form a j... | 01/30/1979 |
| 4101463 | Molded composition and article molded therefrom A molding composition processable into a vulcanized elastomeric article such as a solid rubber tire, for example, is formed by mixing together previously vulcanized scrap rubber, a vulcanizing agent such as sulfur, and suitable quantities of accelerator a... | 07/18/1978 |
| 4097644 | Inorganic raw felt intended for the production of roof felt An improved raw felt material having a high degree of strength and flexibility and increased bulk. The raw felt is used in producing an asphalt roofing cover. The felt is formed from an adhesively bonded porous non-woven sheet of an inorganic fibrous mate... | 06/27/1978 |
