Patents Assigned to GenCorp Inc.
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Patent number: 7152374Abstract: A composite extrusion for an automotive seal strip is formed of an extruded body, and a veneer extruded onto the body. The extruded body is composed of ethylene-propylene diene rubber compound. The veneer is composed of a polymer blend that includes the reaction product of an acrylate polymer and a glycidyl acrylate polymer. The reaction of the acrylate polymer and the glycidyl acrylate polymer improves adhesion and also provides a barrier to inhibit migration of vulcanizing agents from the ethylene-propylene diene rubber body into the veneer that would otherwise cause discoloration during use.Type: GrantFiled: October 21, 2003Date of Patent: December 26, 2006Assignee: GenCorp Inc.Inventor: Krishnamachari Gopalan
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Patent number: 6402874Abstract: An applique article for a “B” pillar or other external surface of a vehicle is composed of integrally bonded cosmetic and functional materials. The applique article includes a thermoplastic base portion, an elastomer or thermoplastic elastomer functional sealing lip portion and a decorative covering portion applied to an exposed surface of the article. At least the functional sealing lip portion and the base portion are integrally bonded together in a mold during a process of manufacturing the article.Type: GrantFiled: July 14, 2000Date of Patent: June 11, 2002Assignee: GenCorp Inc.Inventor: Walter J. Kelly
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Patent number: 6337359Abstract: A latex as a binder for nonwoven applications to form a permeable sublayer of personal hygiene articles. The latex is prepared by a process including the steps of (1) polymerizing a monomer mixture comprising styrene, itaconic acid, surfactant and water soluble free radical initiator to form a seed; (2) sequentially adding equal increments of a monomer mixture of styrene, butadiene and acrylic acid to the seed under emulsion polymerization conditions to form a styrene-butadiene-acrylic acid copolymer; and then (3) neutralizing the styrene-butadiene-acrylic acid copolymer to a pH of about 4.5 to 7 to form the latex.Type: GrantFiled: August 5, 1999Date of Patent: January 8, 2002Assignee: Gencorp Inc.Inventors: David F. Diehl, Carla Dittman McBain
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Patent number: 6321490Abstract: A mechanically interlocking belt weatherstrip for a motor vehicle. The weatherstrip is formed by three separate components: a cover, a body and a sealing lip. The weatherstrip may be made from separate, all-extruded components, or may be a made from a combination of molded and extruded components. The weatherstrip is formed by snapping the body and the cover snap together to hold the sealing lip securely in place. Because the cover can be easily interchanged with a different cover, the cover can be made to include properties, such as color and gloss, desired by a particular motor vehicle manufacturer while the remaining components remain unchanged. Thus, the weatherstrip allows versatility of the selection of the separate components to meet the individual style and functional needs of a particular motor vehicle design.Type: GrantFiled: October 1, 1997Date of Patent: November 27, 2001Assignee: GenCorp Inc.Inventor: James Randall Vance
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Patent number: 6282840Abstract: A mechanically interlocked belt type weatherstrip provides a seal between the upper portion of a door and the lower portion a window. The weatherstrip comprises three individual components: a cover, a body and a sealing lip. These components may be either extruded or molded depending particularly upon the configurations of their terminal portions. All of the components may be one of a wide variety of black flexible plastic or elastomeric materials. However, because each of the components is separate, they can be manufactured of different materials and of different colors to provide specifically desired properties. The weatherstrip is formed by snapping the body and the cover together which holds the sealing lip securely in place between the cover and the body. The weatherstrip thus allows versatility of the selection of the separate components to meet the individual style and functional needs of a particular motor vehicle design.Type: GrantFiled: October 2, 2000Date of Patent: September 4, 2001Assignee: GenCorp Inc.Inventor: James Randall Vance
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Patent number: 6106275Abstract: An injection press apparatus for molding/joining separate parts. The apparatus having a work table with first and second work stations for injecting material into a mold. A movable extruder/injection assembly is provided which has an extruder portion for extruding material, and an injection portion for injecting material. The extruder portion and injection portion are in fluid communication such that material is provided from the extruder portion to the injection portion prior to injection of material from the injection portion to the mold. The injection portion of extruder/injection assembly has a nozzle assembly for receiving and injecting material from the injection portion to a self-actuating mold clamp assembly at the first or second work stations. The first and second work stations support the mold clamp assembly which receives the molding material. The extruder/injection assembly is movable between the first and second work stations by a shuttle assembly.Type: GrantFiled: September 1, 1994Date of Patent: August 22, 2000Assignee: GenCorp Inc.Inventors: Edward F. Huff, Robert L. Brown, David E. Baxter, deceased, Gregory L. Baxter, Walter Hunnicut
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Patent number: 6103168Abstract: An applique article for a "B" pillar or other external surface of a vehicle is composed of integrally bonded cosmetic and functional materials. The applique article includes a thermoplastic base portion, an elastomer or thermoplastic elastomer functional sealing lip portion and a decorative covering portion applied to an exposed surface of the article. At least the functional sealing lip portion and the base portion are integrally bonded together in a mold during a process of manufacturing the article.Type: GrantFiled: January 27, 1997Date of Patent: August 15, 2000Assignee: GenCorp Inc.Inventor: Walter J. Kelly
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Patent number: 6103308Abstract: An aqueous paper and paperboard coating composition is provided containing as a lubricant a vegetable oil triglyceride which is hydrophobic and non-ionic.Type: GrantFiled: April 23, 1998Date of Patent: August 15, 2000Assignee: GenCorp Inc.Inventors: William Floyd, Doug Harper, Nolan Thompson
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Patent number: 6070363Abstract: A mechanically interlocking belt weatherstrip for a motor vehicle. The weatherstrip is formed by three separate components: a cover, a body and a sealing lip. The weatherstrip may be made from separate, all-extruded components, or may be a made from a combination of molded and extruded components. The weatherstrip is formed by snapping the body and the cover snap together to hold the sealing lip securely in place. Because the cover can be easily interchanged with a different cover, the cover can be made to include properties, such as color and gloss, desired by a particular motor vehicle manufacturer while the remaining components remain unchanged. Thus, the weatherstrip allows versatility of the selection of the separate components to meet the individual style and functional needs of a particular motor vehicle design. An assembly jig and method which facilitates assembly of the cover, body and sealing lip are also disclosed.Type: GrantFiled: December 2, 1998Date of Patent: June 6, 2000Assignee: Gencorp Inc.Inventor: James Randall Vance
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Patent number: 5950533Abstract: A web with an embossed surface with a plurality of lows separated by a plurality of highs is provided with a shadow effect by passing the web between a pair of counterrotating rollers, a backup roller for supporting the web on its reverse surface and an ink application roller for applying ink to selected portions of the embossed surface of the web. The ink application roller is formed of a hard elastomeric material and its outer surface is engraved to have a plurality of highs corresponding to and engaging the lows of the embossed surface of the web and a plurality of lows corresponding to and overlying the highs on the embossed surface of the web.Type: GrantFiled: November 10, 1997Date of Patent: September 14, 1999Assignee: GenCorp Inc.Inventors: Joseph S. Kildune, Hubert Perkins
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Patent number: 5935357Abstract: A dual-weld heat welding apparatus capable of simultaneously welding a first membrane and an overlapping second membrane on opposite sides of a roof membrane fastening apparatus fastened through the first membrane and located under the overlapping second membrane The heat welding apparatus includes a movably supported chassis, a hot air welder attached to the chassis including a nozzle having an outlet including at least one opening for simultaneously applying a weld on opposite sides of the roof membrane fastener to weld the overlapping second membrane and the first membrane, and at least one weld wheel rotatably attached to the chassis and located rearward of the nozzle relative to the direction of movement of the apparatus and capable of simultaneously applying pressure to the weld on each side of the roof membrane fastener.Type: GrantFiled: February 20, 1997Date of Patent: August 10, 1999Assignee: GenCorp Inc.Inventors: Michael J. Hubbard, John Jordon
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Patent number: 5914173Abstract: The invention relates to a flexible, waterproof shower pan liner comprised of a water-insoluble thermoplastic sheet. The shower pan liner includes on at least one surface selected indicia such as product information or plumbing codes at regular intervals. The indicia are embossed into the shower pan liner thereby eliminating the need for a protective top coat. In a process for making the invention, the thermoplastic is heated, calendered, and thereafter embossed with the selected indicia while in a heated condition.Type: GrantFiled: November 7, 1996Date of Patent: June 22, 1999Assignee: GenCorp Inc.Inventors: David L. Fishel, Peter F. Payne
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Patent number: 5876551Abstract: A breathable, decorative wallcovering having a smooth, continuous, aesthetically appealing exposed surface which can be printed with a design or pattern having sharply defined edges, and having a relatively high moisture permeability, includes a porous polymeric ply fused to and supported by a nonwoven substrate ply which consists of an array of hydroentangled fibers. The porous polymeric ply is formed by thermally fusing a plastisol coating, which is applied to the nonwoven substrate ply, and which has a thickness sufficiently low to permit localized variations in fiber orientation and small variations in the thickness of the nonwoven substrate ply to cause the formation of a multiplicity of miniature discontinuities which are substantially invisible to the unaided eye and which are randomly distributed throughout the coating. The plastisol coating is, however, thick enough to allow the formation of a coating which upon thermal fusion provides a polymeric ply having a smooth continuous appearance.Type: GrantFiled: September 25, 1997Date of Patent: March 2, 1999Assignee: GenCorp Inc.Inventor: Dan L. Jackson
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Patent number: 5872200Abstract: A paper coating formulation and a process for making a paper coating formulation having an improved strength and blister resistance including an aqueous medium having dispersed therein a functionally effective amount of a finely divided mineral filler and a latex binder containing copolymerized acid functional and amine functional monomers in each polymer molecule.Type: GrantFiled: July 31, 1997Date of Patent: February 16, 1999Assignee: GenCorp Inc.Inventors: Satish C. Sharma, Charles M. Kausch, Ronald D. Mohan, Raymond J. Weinert
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Patent number: 5860255Abstract: An anti-fracture, water-resistant, masonry-bondable membrane comprises a laminate having a core generally containing at least two plies of a flexible material bonded together by a flexible adhesive such as a plastisol, and a non-woven fiber layer physically bonded directly to at least one side of the core. The plastisol is a liquid composition which contains small sized resin particles such as polyvinyl chloride dispersed within a plasticizer. The core has good low as well as high temperature peel strength. The non-woven fiber layer is physically bonded to the flexible core by heat and pressure to produce a laminate wherein the non-woven fibers are partially embedded within the flexible material. The flexible membrane or laminate when utilized between and bonded to an exterior masonry article such as ceramic tile and to a substrate such as concrete, is very effective in preventing any cracks from propagating from the substrate to the article.Type: GrantFiled: May 9, 1996Date of Patent: January 19, 1999Assignee: GenCorp Inc.Inventors: David L. Fishel, Terry M. DiGiglia
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Patent number: 5830390Abstract: A method and apparatus for a nonsynchronous system for continuously molding articles from a material cured by the control of temperature and pressure. The apparatus includes a multi-section self-clamping mold, a controller system, a material injector, a transfer system, a curing apparatus for curing the articles, and a mold separator-assembler. The method comprises pre-treating and then assembling the mold in a clamped condition. Under the control of the controller system, the mold is then injected with material from the injector, and moved by the transfer system through the curing apparatus to cure the material within the mold. Once cured, the controller system moves the mold to the mold separator-assembler via the transfer system. The mold is then disassembled into sections, the molded article is removed, and the sections are pre-treated and reassembled, for the next injection operation.Type: GrantFiled: April 30, 1992Date of Patent: November 3, 1998Assignee: Gencorp Inc.Inventors: Robert L. Brown, Michael K. Parrent, David E. Baxter
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Patent number: 5824610Abstract: A nonwoven fabric of chemically bonded non-cellulose fibers having improved wet tensile properties. The fabric includes a random arrangement of non-cellulose fibers and an essentially formaldehyde free latex binder. The latex binder contains at least about 6.7 wt % vinyl cyanide monomer to bond the non-cellulose fibers and form a nonwoven fabric having at least a 10% improvement in wet tensile strength over a comparable nonwoven fabric having a latex binder essentially free of formaldehyde and free of vinyl cyanide monomer in the monomeric mixture.Type: GrantFiled: April 22, 1997Date of Patent: October 20, 1998Assignee: GenCorp Inc.Inventor: David F. Diehl
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Patent number: 5779956Abstract: A molded glass run channel corner assembly formed by molding an extruded rigid division post and a flexible extruded header such that the corner assembly is capable of providing a continuous seal with contiguous corner edges of glass windows positioned on each side of the division post and a method of manufacture.Type: GrantFiled: August 16, 1996Date of Patent: July 14, 1998Assignee: GenCorp Inc.Inventors: Chris J. Hollingshead, Eric E. Gardner
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Patent number: 5777053Abstract: An in-mold coating composition for a fiber reinforced plastic comprises an aliphatic resin such as a saturated aliphatic ester intermediate polyurethane having terminal acrylate end groups, a saturated (cyclo)aliphatic (meth)acrylate such as isobornyl acrylate, a hydroxyl alkyl (meth)acrylate, a polyacrylate ester of an alkylene polyol, and a vinyl substituted aromatic. The in-mold coating compositions have good end use weather-resistant properties so that there is no need for a subsequent paint coat thereon which heretofore has been required. The paint-free coating compositions can be either clear or pigmented and can contain various additives such as lubricants, adhesion aids, hardeners, and the like.Type: GrantFiled: January 17, 1997Date of Patent: July 7, 1998Assignee: GenCorp Inc.Inventors: Douglas S. McBain, David S. Cobbledick, Henry Shanoski, Brian J. Sullivan
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Patent number: 5772816Abstract: A reinforced tape strip for securing a membrane roof to a roof deck or a parapet wall of a roof deck. The reinforced tape strip includes a layer of a single ply reinforcement material, at least one adhesive layer of a uniform thickness bonded to the single ply reinforcement material, and a protective layer covering the adhesive layer.Type: GrantFiled: May 24, 1995Date of Patent: June 30, 1998Assignee: GenCorp Inc.Inventor: Michael J. Hubbard