Patents by Inventor Charles D. Mason
Charles D. Mason 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: 5420206Abstract: The invention provides novel blends and processes for producing such blends which include a polyamide, an olefinic acid copolymer or salt thereof, and a maleated ethylene/propylene rubber, wherein such novel blends may be processed by conventional extrusion and molding techniques, do not require a separate curing step or procedure in the overall production process, and which produces articles which have some physical characteristics similar to those exhibited by thermoplastic elastomers. The inventive compositions exhibit feature excellent resistance to zinc chloride solutions and are formable in a single melt blending step.Type: GrantFiled: April 15, 1994Date of Patent: May 30, 1995Assignee: AlliedSignal Inc.Inventors: Charles D. Mason, Harold W. Tuller, Thomas J. Krollick
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Patent number: 5414051Abstract: Disclosed are compositions and process for the improving the rate or crystallization of polyamide containing compositions which comprise two polyamides having dissimilar melting temperatures, said process comprising the steps of heating the two polyamides to a temperature which is above the melting point of the polyamide having the lower melting temperature but below the melting temperature of the polyamide having the higher melting temperature, as well compositions made in accordance with the process. Preferred polyamides include polycaprolactam and polyhexamethylene adipamide, poly(tetramethylenediamine-co-adipic acid) and further, the inventive compositions may optionally include optional additional constituents. The process provided for improved nucleation without the necessity of inorganic nucleation promoters or agents, and articles made in accordance to the process exhibit good physical properties.Type: GrantFiled: March 14, 1994Date of Patent: May 9, 1995Assignee: AlliedSignal Inc.Inventors: Charles D. Mason, Nicolas Vanderkooi, Jr.
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Patent number: 5359013Abstract: Disclosed are compositions and process for the improving the rate of crystallization of polyamide containing compositions which comprise two polyamides having dissimilar melting temperatures, said process comprising the steps of heating the two polyamides to a temperature which is above the melting point of the polyamide having the lower melting temperature but below the melting temperature of the polyamide having the higher melting temperature, as well compositions made in accordance with the process. Preferred polyamides include polycaprolactam and polyhexamethylene adipamide, and the said compositions may optionally include further constituents. The process provided for improved nucleation without the necessity of inorganic nucleation promoters or agents, and articles made in accordance to the process exhibit good physical properties.Type: GrantFiled: March 24, 1994Date of Patent: October 25, 1994Assignee: AlliedSignal Inc.Inventors: Charles D. Mason, Nicholas Vanderkooi, Jr.
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Patent number: 5024897Abstract: Compositions comprising polyamides, polyolefins and ethylene vinyl alcohol copolymers useful as compatibilizers, related processes and articles made therefrom. A composition comprising from 50 to 99.4 percent by weight of a polyolefin, from 0.5 to 50 percent by weight of a polyamide, from 0.1 to 10 percent by weight of an ethylene vinyl alcohol copolymer comprising from 50 to 95 mole percent ethylene groups and from 5 to 50 mole percent vinyl alcohol groups and less than 5.0 mole percent and preferably less than 2.0 mole percent unhydrolyzed vinyl acetate groups.Type: GrantFiled: May 2, 1990Date of Patent: June 18, 1991Assignee: Allied-Signal Inc.Inventors: Charles D. Mason, William Sacks, Theodore R. Engelmann, Satyajit Verma
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Patent number: 4950515Abstract: Compositions comprising polyamides, polyolefins and ethylene vinyl alcohol copolymers useful as compatabilizers, related processes and articles made therefrom. A composition comprising from 50 to 99.4 percent by weight of a polyolefin, from 0.5 to 50 percent by weight of polyamide, from 0.1 to 10 percent by weight of an ethylene vinyl alcohol copolymer comprising from 50 to 95 mole percent ethylene groups and from 5 to 59 mole percent vinyl alcohol groups and less than 5.0 mole percent and preferably less than 2.0 mole percent unhydrolyzed vinyl acetate groups.Type: GrantFiled: February 7, 1989Date of Patent: August 21, 1990Assignee: Allied-Signal Inc.Inventors: Charles D. Mason, William Sacks, Theodore R. Engelmann, Satyajit Verma
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Patent number: 4945129Abstract: The present invention is a polyamide composition with high impact strength which is retained at low temperatures. The composition consists of from 0.5 to 95 percent by weight of at least one amine terminated polyamide. The amine terminated polyamide comprises from 3 to 97 mole percent of the polyamide acid molecules having amine groups as at least two end groups of the polyamide acid molecule. The composition further contains 3 to 99.5 percent by weight of a polyamide having at least 50 mole percent of its end groups as acid groups or capped groups. The composition further has from 2 to 50 percent, and preferably 15 to 30 percent based on the total weight of the polymer of a reactive polymer. The reactive copolymer is based on a copolymer of ethylene and an .alpha.-olefin having 3 to 8 carbon atoms. This copolymer is identified as the "ethylene copolymer".Type: GrantFiled: January 26, 1989Date of Patent: July 31, 1990Assignee: Allied-Signal Inc.Inventors: Charles D. Mason, John A. Young, John C. Haylock, Ian C. Twilley
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Patent number: 4801633Abstract: A salt resistant composition comprising a polyamide selected from the group consisting of: polyepsiloncaprolactam, polyhexamethylene adipamide; copolymers of caprolactam, hexamethylene diamine, and adipic acid; and mixtures thereof. The composition contains from 2 to 30 percent, and preferably 4 to 30 percent based on the weight of the polyamide of a water insoluble plasticizer, and a copolymer of an alpha-olefin and an unsaturated carboxylic acid and derivatives thereof. The plasticizer has been found to enable the polyamide composition to maintain its flexibility upon exposure to a variety of salts. Preferred plasticizers include lauryl lactam and sulfonamides. Preferred are sulfonamide type plasticizers such as n-ethyl; o,p-toluenesulfonamide; o,p-toluene sulfonamide, and toluene sulfonamide formaldehyde resin. The invention includes articles made from the composition.Type: GrantFiled: September 8, 1987Date of Patent: January 31, 1989Assignee: Allied-Signal Inc.Inventors: Charles D. Mason, Paul G. Galanty, Elmer D. Jones
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Patent number: 4745143Abstract: A salt resistant composition comprising a polyamide selected from the group consisting of: polyepsiloncaprolactam, polyhexamethylene adipamide; copolymers of caprolactam, hexamethylene diamine, and adipic acid; and mixtures thereof. The composition contains from 2 to 30 percent, and preferrably 4 to 30 percent based on the weight of the polyamide of a water insoluble plasticizer, and a copolymer of an alpha-olefin and an unsaturated carboxylic acid and derivatives thereof. The plasticizer has been found to enable the polyamide composition to maintain its flexibility upon exposure to a variety of salts. Preferred plasticizers include lauryl lactam and sulfonamides. Preferred are sulfonamide type plasticizers such as n-ethyl o,p-toluenesulfonamide; o,p-toluene sulfonamide, and toluene sulfonamide formaldehyde resin. The invention includes articles made from the composition.Type: GrantFiled: July 12, 1985Date of Patent: May 17, 1988Assignee: Allied-Signal Inc.Inventors: Charles D. Mason, Paul G. Galanty, Elmer D. Jones
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Patent number: 4659767Abstract: Impact modified polyester blends are provided which are blends of a saturated polyester such as poly(ethylene terephthalate) and an impact modifying amount of a combination of a core-shell polymer and a copolymer of an alpha-olefin having 2 to 8 carbon atoms and a monomer selected from an unsaturated carboxylic acid having 3 to 8 carbon atoms and salts and anhydrides thereof.Type: GrantFiled: January 10, 1985Date of Patent: April 21, 1987Assignee: Allied CorporationInventors: Steven R. Dunkle, Charles D. Mason
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Patent number: 4564650Abstract: The present invention is a flame retardant composition comprising from 5 to 20 weight percent of a homopolymer of a monomer having the formula: ##STR1## wherein n=0 or 1, X is bromine or chlorine and R is hydrogen or methyl. The polymer has a molecular weight between 1.times.10.sup.3 and 10.times.10.sup.6, and preferably 5.times.10.sup.3 to 5.times.10.sup.6. The molecular weight is determined by gel permeation chromotography in tetrahydrofuran. The composition contains from 80 to 95 weight percent of a polyamide having an excess of polymer chain ends terminated with amine groups. There can be from 0 to 10, preferably 1 to 10, and more preferably 2 to 6 weight percent of antimony oxide. Optionally, the composition can contain an impact modifier and/or a filler.Type: GrantFiled: December 22, 1983Date of Patent: January 14, 1986Assignee: Allied CorporationInventors: Arie Hochberg, Charles D. Mason
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Patent number: 4525513Abstract: The present invention is a flame retardant composition comprising from 5 to 20 weight percent of a homopolymer of a monomer having the formula: ##STR1## wherein n=0 or 1, X is bromine or chlorine and R is hydrogen or methyl. The polymer has a molecular weight between 1.times.10.sup.3 and 10.times.10.sup.6, and preferably 5.times.10.sup.3 to 5.times.10.sup.6. The molecular weight is determined by gel permeation chromatography in tetrahydrofuran. The composition contains from 80 to 95 weight percent of a polyamide. There can be from 0 to 10, preferably 1 to 10, and more preferably 2 to 6 weight percent of antimony oxide. Optionally, the composition can contain an impact modifier and/or a filler.Type: GrantFiled: December 27, 1982Date of Patent: June 25, 1985Assignee: Allied CorporationInventors: Arie Hochberg, John C. Haylock, Charles D. Mason
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Patent number: 4468427Abstract: A composition of matter comprising a polyamide, preferably polyepsiloncaprolactam, and from 1 to 65 percent of an ethylene vinyl alcohol copolymer. The composition is useful for making moldings, films, and fibers.Type: GrantFiled: October 11, 1983Date of Patent: August 28, 1984Assignee: Allied CorporationInventors: Alfieri Degrassi, William Sacks, John P. Sibilia, Abraham M. Kotliar, Charles D. Mason
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Patent number: 4436872Abstract: Certain metal compounds such as antimony oxide and magnesium oxide are used to enhance the notched Izod impact resistance of molded objects made from selected polyamide copolymer compositions comprised of polyepsiloncaprolactam (nylon-6) or polyhexamethyleneadipamide (nylon-66) and preferably ethylene/ethyl acrylate and ethylene/acrylic acid copolymers.Type: GrantFiled: March 29, 1982Date of Patent: March 13, 1984Assignee: Allied CorporationInventors: Paul W. Flood, Charles D. Mason, Stephen R. Schulze
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Patent number: 4427825Abstract: A composition of matter comprising a polyamide, preferably polyepsiloncaprolactam, and from 1 to 65 percent of an ethylene vinyl alcohol copolymer. The composition is useful for making moldings, films, and fibers.Type: GrantFiled: November 9, 1981Date of Patent: January 24, 1984Assignee: Allied CorporationInventors: Alfieri Degrassi, William Sacks, John P. Sibilia, Abraham M. Kotliar, Charles D. Mason
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Patent number: 4404325Abstract: A polyamide composition comprising from about 46 percent to about 94 percent by weight polyamide, from about 5 percent to about 44 percent by weight random ionic copolymer, and from about 1 percent to about 12 percent by weight of an ester copolymer of ethylene and an ester of an alpha,beta-ethylenically unsaturated carboxylic acid. Preferably, the composition contains a metal cation containing material.Type: GrantFiled: May 11, 1981Date of Patent: September 13, 1983Assignee: Allied CorporationInventors: Charles D. Mason, Harold W. Tuller
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Patent number: 4335223Abstract: Certain metal compounds such as antimony oxide and magnesium oxide are used to enhance the notched Izod impact resistance of molded objects made from selected polyamide copolymer compositions comprised of polyepsiloncaprolactam (nylon-6) or polyhexamethyleneadipamide (nylon-66) and preferably ethylene/ethyl acrylate and ethylene/acrylic acid copolymers.Type: GrantFiled: November 21, 1980Date of Patent: June 15, 1982Assignee: Allied CorporationInventors: Paul W. Flood, Charles D. Mason, Stephen R. Schulze
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Patent number: 4302511Abstract: A laminate structure having at least one layer of a polyamide containing from 0.001 to 1.0 parts, based on the weight of the polyamide, of a copper cation containing material. The polyamide layer is contiguous to at least one opposing layer. The opposing layer contains an effective amount of functional groups selected from the group consisting of acid groups, metal salts of the acid, acid anhydrides, carbonates and mixtures thereof.Type: GrantFiled: December 29, 1980Date of Patent: November 24, 1981Assignee: Allied CorporationInventors: Harold W. Tuller, Stephen R. Schulze, Charles D. Mason
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Patent number: 4171338Abstract: A process is provided for preparing ultrahigh molecular weight, high abrasion resistant polyethylene compositions, wherein ultrahigh molecular weight polyethylene resin is admixed with about 0.01 to 0.1 weight percent organic peroxide and the admixture introduced at elevated temperatures into a melt shaping apparatus such as a ram extruder. The ultrahigh molecular weight polyethylene is cross-linked to still higher molecular weight compositions during melt shaping thereby resulting in a composition having superior abrasion resistance.Type: GrantFiled: November 1, 1977Date of Patent: October 16, 1979Assignee: Allied Chemical CorporationInventor: Charles D. Mason
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Patent number: 4160790Abstract: Synergistic improvement of nylon-6 or nylon-66 impact resistance by blending, in the melt, with minor proportions of both an ethylene/acrylic acid copolymer and an ethylene/ethyl acrylate copolymer.Type: GrantFiled: August 3, 1977Date of Patent: July 10, 1979Assignee: Allied Chemical CorporationInventors: Charles D. Mason, Paul W. Flood