Patents by Inventor Allen D. Wambach
Allen D. Wambach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4559164Abstract: Poly(butylene terephthalate) injected molded articles which contain small uniformly distributed amounts of amorphous carbon or graphite powder, or graphitic carbon in the form of fibers, or any combination thereof, are electroconductive and possess decreased tendency to accumulate charges of static electricity. Minor amounts of glass fibers, polycarbonate resins and rubbery impact modifiers improve the electroconductivity imparted by the carbon.Type: GrantFiled: March 9, 1982Date of Patent: December 17, 1985Assignee: General Electric CompanyInventors: Robert J. Kostelnik, Allen D. Wambach
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Patent number: 4467057Abstract: Modified thermoplastic polyester compositions are provided which comprise (a) a poly(1,4-butylene terephthalate) resin or polyester copolymer and, optionally, a poly(ethylene terephthalate) resin (b) a modifier therefor comprising a combination of a selectively hydrogenation monoalkenyl arene-diene block copolymer resin and an aromatic polycarbonate, and (c) a mineral filler and, optionally, (d) a flame retardant. Modifier (b) and mineral filler (c) provide enhanced resistance to impact fracture, increased strength and improved resistance to heat distortion in articles molded from the compositions.Type: GrantFiled: May 13, 1983Date of Patent: August 21, 1984Assignee: General Electric CompanyInventors: Ronald L. Dieck, Allen D. Wambach
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Patent number: 4460731Abstract: Reinforced thermoplastic molding compositions are provided comprising a high molecular weight linear polyester, such as poly(1,4-butylene terephthalate) and another high molecular weight polyester, such as poly(ethylene terephthalate), in combination with talc and one or more reinforcing agents or fillers.Type: GrantFiled: October 12, 1983Date of Patent: July 17, 1984Assignee: General Electric CompanyInventors: John E. Kochanowski, Allen D. Wambach
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Patent number: 4414352Abstract: Flame-retardant thermoplastic molding compositions having improved physical and electrical arc track resistant properties are provided, the compositions comprising an intimate admixture of(a) a high molecular weight poly(1,4-butylene terephthalate) homo- or co-polyester,(b)(i) a copolymer of ethylene and vinyl acetate in combination with an aromatic polycarbonate;(ii) poly(ethylene terephthalate); or(iii) reinforcing glass;(c) a flame retardant agent; and(d) a mineral filler.Type: GrantFiled: October 15, 1980Date of Patent: November 8, 1983Assignee: General Electric CompanyInventors: Stuart C. Cohen, Robert J. Kostelnik, Allen D. Wambach
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Patent number: 4369280Abstract: Polybutylene terephthalate molding compositions which contain a small amount of ethylene-ethyl acrylate copolymer, or an ethylene-vinyl acetate copolymer, or a mixture of these copolymers, and optionally polyethylene, provide moldings which in preferred embodiments possess improved impact resistance and lower specific gravity, without more than negligible loss of other properties. Other conventional modifiers can be present.Type: GrantFiled: August 4, 1981Date of Patent: January 18, 1983Assignee: General Electric CompanyInventors: Ronald L. Dieck, Frank N. Liberti, Allen D. Wambach
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Patent number: 4322333Abstract: A thermoplastic molding composition having improved impact strength is provided, the composition comprising a thermoplastic resin selected from (i)a poly(1,4-butylene terephthalate)in combination with a poly(ethylene terephthalate)resin, mineral-filled, or (ii) a poly(1,4-butylene terephthalate) co-aromatic/aliphatic polyester, reinforced and/or mineral-filled, and a minor, effective amount of a copolymer of ethylene and vinyl acetate or a terpolymer of ethylene, vinyl acetate and methacrylic and/or acrylic acid.Type: GrantFiled: November 5, 1979Date of Patent: March 30, 1982Assignee: General Electric CompanyInventors: John E. Kochanowski, Allen D. Wambach
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Patent number: 4296021Abstract: Reinforced thermoplastic compositions are provided comprising a high molecular weight linear polyester, and a minor proportion of aluminum silicate alone or in combination with glass fiber reinforcement. The use of the aluminum silicate elevates strength, modulus and heat deflection temperature, while retaining the inherent resistance to high voltage breakdown of the polyester resin component.Type: GrantFiled: December 6, 1976Date of Patent: October 20, 1981Assignee: General Electric CompanyInventor: Allen D. Wambach
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Patent number: 4279801Abstract: Novel thermoplastic molding compositions are disclosed which are based on the combination of a linear thermoplastic polyester and a thermoplastic poly(ester-urethane).Type: GrantFiled: July 2, 1975Date of Patent: July 21, 1981Assignee: General Electric CompanyInventors: Morton Kramer, Allen D. Wambach
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Patent number: 4220735Abstract: Modified thermoplastic polyester compositions are provided which comprise (a) a poly(1,4-butylene terephthalate) resin in combination with a poly(ethylene terephthalate) resin and/or a polyester copolymer and (b) a modifier therefor comprising a combination of a selectively hydrogenated monoalkenyl arene-diene block copolymer resin and an aromatic polycarbonate. The compositions can include (c) reinforcing glass fibers and/or (d) a flame retardant. Modifier (b) provides enhanced resistance to impact fracture, increased strength and improved resistance to heat distortion in articles molded from the compositions.Type: GrantFiled: December 18, 1978Date of Patent: September 2, 1980Assignee: General Electric CompanyInventors: Ronald L. Dieck, Allen D. Wambach
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Patent number: 4140669Abstract: Reinforced thermoplastic compositions are provided comprising a poly(1,4-butylene terephthalate) resin, a poly(ethylene terephthalate) resin, and a reinforcing, warp resisting combination of talc and silica. The compositions optionally include a segmented copolyester resin, a silicon polymer and/or a fibrous glass reinforcement. The compositions are moldable to articles having improved resistance to warpage during heat treatment in comparison with molding compositions of talc, (poly(1,4-butylene terephthalate) and poly(ethylene terephthalate).Type: GrantFiled: December 30, 1977Date of Patent: February 20, 1979Assignee: General Electric CompanyInventors: Donald L. Phipps, Jr., Allen D. Wambach
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Patent number: 4125571Abstract: A thermoplastic composition of a combination of polyesters comprising a poly(1,4-butylene terephthalate) and a polyester derived from a cyclohexanedimethanol.Type: GrantFiled: December 14, 1976Date of Patent: November 14, 1978Assignee: General Electric CompanyInventors: Steven W. Scott, Allen D. Wambach
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Patent number: 4124561Abstract: Reinforced thermoplastic compositions are provided which comprise a high molecular weight polyester and a mineral reinforcing filler comprising mica, talc or mixtures thereof in combination with a glass fiber reinforcement. The use of glass fibers together with the mineral reinforcement provides shatter resistance and further enhances other physical properties, such as tensile strength, modulus, impact strength and heat distortion temperature. Self-extinguishing embodiments are also disclosed.Type: GrantFiled: December 6, 1976Date of Patent: November 7, 1978Assignee: General Electric CompanyInventors: Donald L. Phipps, Jr., Allen D. Wambach
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Patent number: 4123415Abstract: Reinforced thermoplastic compositions are provided which comprise a high molecular weight polyester resin and a glass fiber reinforcement wherein the glass fibers have a maximum average standard diameter of about 0.0005 inches. The use of such glass fibers improves resistance to deflection by heat of fibrous glass reinforced compositions in comparison with a reinforced composition including glass fibers having an average standard diameter of greater than about 0.0005 inches.Type: GrantFiled: December 6, 1976Date of Patent: October 31, 1978Assignee: General Electric CompanyInventor: Allen D. Wambach
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Patent number: 4011193Abstract: Reinforced thermoplastic compositions are provided comprising a high molecular weight linear polyester, and a minor proportion of potassium titanate, substantially in the form of single filament crystals. The use of the potassium titanate elevates strength, modulus and heat deflection temperature, while retaining the inherent toughness of the polyester resin component.Type: GrantFiled: December 13, 1972Date of Patent: March 8, 1977Assignee: General Electric CompanyInventor: Allen D. Wambach
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Patent number: 3953394Abstract: Thermoplastic, stable, blended compositions comprising a combination of (a) a poly(ethylene terephthalate) resin and (b) a poly(1,4-butylene terephthalate) resin. The alloyed combination of resins can be reinforced with fillers and also rendered flame retardant.Type: GrantFiled: November 15, 1971Date of Patent: April 27, 1976Assignee: General Electric CompanyInventors: Daniel W. Fox, Allen D. Wambach
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Patent number: 3936400Abstract: Normally flammable foamed polyester resins (a) are rendered flame retardant by combination with (b) a flame retardant amount of (i) an aromatic carbonate copolymer, from 25 to 75 wt. % of the repeating units comprising chloro- or bromo-substituted dihydric phenol units; (ii) an aromatic carbonate homopolymer having repeating units comprising chloro- or bromo-substituted dihydric phenol units in combination with an aromatic carbonate homopolymer having repeating dihydric phenol units; or (iii) a combination of (i) with an aromatic carbonate homopolymer having repeating dihydric phenol units, and (c) an antimony-containing compound.Type: GrantFiled: July 5, 1974Date of Patent: February 3, 1976Assignee: General Electric CompanyInventor: Allen D. Wambach