Patents by Inventor Edward Pickett
Edward Pickett 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: 6462168Abstract: In one embodiment the present invention is a polycarbonate comprising structural units derived from at least one dihydric phenol, a carbonate precursor, and at least one member selected from the group consisting of an oxanilide-comprising compound, an oxamate-comprising compound, and mixtures thereof. In another embodiment the present invention is a method for making a polycarbonate comprising structural units derived from at least one dihydric phenol and at least one member selected from the group consisting of an oxanilide-comprising compound, an oxamate-comprising compound, and mixtures thereof, which comprises the step of contacting under reactive conditions at least one dihydric phenol, a carbonate precursor, and at least one member selected from the group consisting of an oxanilide-comprising compound, an oxamate-comprising compound, and mixtures thereof. In still another embodiment the present invention is an article comprising a polycarbonate comprising oxanilide structural units.Type: GrantFiled: April 25, 2001Date of Patent: October 8, 2002Assignee: General Electric CompanyInventors: Tiberiu Mircea Siclovan, Daniel Joseph Brunelle, James Edward Pickett, Joseph Anthony Suriano
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Patent number: 6395922Abstract: A method for preparing novel dibenzoylresorcinol-based compounds is disclosed, wherein the dibenzoylresorcinol is bonded to a substituted or unsubstituted aryl group which does not include a pendent hydroxyl group. The groups attached to the dibenzoylresorcinol may contain a wide variety of functional sites which permit further reaction, e.g., copolymerization. The described compounds are very useful as UV light absorbers and may be used to form improved coating compositions which usually include a transparent, polymeric matrix material. The coating compositions may be applied to various substrates, e.g., thermoplastics, to afford a selection of enhanced properties, such as UV light resistance and abrasion resistance.Type: GrantFiled: June 16, 2000Date of Patent: May 28, 2002Assignee: General Electric CompanyInventor: James Edward Pickett
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Patent number: 6350521Abstract: Thermoplastic substrates subject to color instability and loss of physical properties resulting from exposure to ultraviolet radiation, such as polycarbonate, are coated with a protective coating comprising at least one thermoplastic acrylic polymer such as poly(methyl methacrylate) in combination with two ultraviolet absorbing compounds: a substituted resorcinol such as 4,6-dibenzoylresorcinol and a silylated substituted resorcinol such as 2-(3-triethoxysilylpropyl)-4,6-dibenzoylresorcinol. The silylated substituted resorcinol is used in a minor proportion effective to improve solubility and compatibility of the substituted resorcinol.Type: GrantFiled: December 22, 1999Date of Patent: February 26, 2002Assignee: General Electric CompanyInventors: Mao Chen, James Edward Pickett, Karen Kueck Webb, Gregory Ronald Gillette
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Publication number: 20010055671Abstract: Substantially solvent-free multilayer articles characterized by excellent color retention and gloss retention, solvent resistance and recyclability comprise a substrate layer comprising a first material selected from the group consisting of a metal, ceramic, glass, a celluosic material, a thermoset resin, and a thermoplastic resin, and a resinous coating layer which comprises at least one auxiliary color stabilizer additive and an arylate polymer comprising ester structural units derived from a resorcinol or alkylresorcinol isophthalate-terephthalate. An intermediate layer may also be present.Type: ApplicationFiled: July 18, 2001Publication date: December 27, 2001Applicant: General Electric CompanyInventors: James Edward Pickett, Joseph Anthony Suriano, Steven Thomas Rice, Xiangyang Li
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Patent number: 6306507Abstract: Thermally stable polymers comprising resorcinol arylate chain members are prepared using an interfacial method comprising the steps of: (a) combining at least one resorcinol moiety and at least one catalyst in a mixture of water and at least one organic solvent substantially immiscible with water; and (b) adding to the mixture from (a) at least one dicarboxylic acid dichloride while maintaining the pH between 3 and 8.5 through the presence of an acid acceptor, wherein the total molar amount of acid chloride groups is stoichiometrically deficient relative to the total molar amount of phenolic groups.Type: GrantFiled: August 5, 1999Date of Patent: October 23, 2001Assignee: General Electric CompanyInventors: Daniel Joseph Brunelle, Joseph Anthony Suriano, Tiberiu Mircea Siclovan, James Edward Pickett
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Patent number: 6294647Abstract: Thermally stable polymers comprising resorcinol arylate chain members are prepared using an interfacial method comprising the steps of: (a) combining at least one resorcinol moiety and at least one catalyst in a mixture of water and at least one organic solvent substantially immiscible with water; and (b) adding to the mixture from (a) at least one dicarboxylic acid dichloride while maintaining the pH between 3 and 8.5 through the presence of an acid acceptor, wherein the total molar amount of acid chloride groups is stoichiometrically deficient relative to the total molar amount of phenolic groups.Type: GrantFiled: September 6, 2000Date of Patent: September 25, 2001Assignee: General Electric CompanyInventors: Daniel Joseph Brunelle, Joseph Anthony Suriano, Taeseok Jang, Tiberiu Mircea Siclovan, James Edward Pickett, Gregory Allen O'Neil
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Patent number: 6291589Abstract: Thermally stable polymers comprising resorcinol arylate chain members are prepared using an interfacial method comprising the steps of: (a) combining at least one resorcinol moiety and at least one catalyst in a mixture of water and at least one organic solvent substantially immiscible with water; and (b) adding to the mixture from (a) at least one dicarboxylic acid dichloride while maintaining the pH between 3 and 8.5 through the presence of an acid acceptor, wherein the total molar amount of acid chloride groups is stoichiometrically deficient relative to the total molar amount of phenolic groups.Type: GrantFiled: September 6, 2000Date of Patent: September 18, 2001Assignee: General Electric CompanyInventors: Daniel Joseph Brunelle, Joseph Anthony Suriano, Taeseok Jang, Tiberiu Mircea Siclovan, James Edward Pickett, Gregory Allen O'Neil
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Patent number: 6265522Abstract: Thermally stable polymers comprising resorcinol arylate chain members are prepared using an interfacial method comprising the steps of: (a) combining at least one resorcinol moiety and at least one catalyst in a mixture of water and at least one organic solvent substantially immiscible with water; and (b) adding to the mixture from (a) at least one dicarboxylic acid dichloride while maintaining the pH between 3 and 8.5 through the presence of an acid acceptor, wherein the total molar amount of acid chloride groups is stoichiometrically deficient relative to the total molar amount of phenolic groups.Type: GrantFiled: September 6, 2000Date of Patent: July 24, 2001Assignee: General Electric CompanyInventors: Daniel Joseph Brunelle, Joseph Anthony Suriano, Taeseok Jang, Tiberiu Mircea Siclovan, James Edward Pickett, Gregory Allen O'Neil
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Patent number: 6143839Abstract: Weatherability of polycarbonates, or of blends of polycarbonates with other polymers such as polyesters, is improved by incorporating therein a thermoplastic arylate polymer comprising units derived from a resorcinol or alkylresorcinol isophthalate-terephthalate. These units may be combined with units derived from a resorcinol or alkylresorcinol ester of a C.sub.4-12 aliphatic, alicyclic or mixed aliphatic-alicyclic dicarboxylic acid, such as sebacic acid.Type: GrantFiled: September 14, 1998Date of Patent: November 7, 2000Assignee: General Electric CompanyInventors: Jimmy Lynn Webb, Randall Lee Carter, Tiberiu Mircea Siclovan, James Edward Pickett
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Patent number: 6143918Abstract: Methods for preparing novel dibenzoylresorcinol-based compounds are disclosed, wherein the dibenzoylresorcinol is bonded to the residue of either an alcohol or a carboxylic acid group, via a methylene carboxylate linking group; and wherein the dibenzoylresorcinol is bonded directly to a substituted or unsubstituted aryl group which does not include a pendent hydroxyl group. The groups attached to the dibenzoylresorcinol may contain a wide variety of functional sites which permit further reaction, e.g., copolymerization. The described compounds are very useful as UV light absorbers and may be used to form improved coating compositions which usually include a transparent, polymeric matrix material. The coating compositions may be applied to various substrates, e.g., thermoplastics, to afford a selection of enhanced properties, such as UV light resistance and abrasion resistance.Type: GrantFiled: July 2, 1999Date of Patent: November 7, 2000Assignee: General Electric CompanyInventors: James Edward Pickett, Wen P Liao, Amy Kathleen Simonian, Gregory Ronald Gillette
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Patent number: 6037059Abstract: Novel dibenzoylresorcinol compositions capable of absorbing ultraviolet light having the formula ##STR1## where Ar.sub.1 and Ar.sub.2 are independently substituted or unsubstituted monocyclic or polycyclic aryl groups, R is hydrogen, an aryl group, or a linear or branched alkyl chain having less than about 10 carbons, and Ar.sub.3 is an aryl group bearing at least one hydroxyl group. Methods of making the compositions are provided. The novel dibenzoylresorcinol compositions are methylene-bridged dibenzoylresorcinol derivatives having a phenol group on the bridging methylene and are compatible in coating compositions to improve the weatherability of thermoplastic substrates.Type: GrantFiled: October 23, 1998Date of Patent: March 14, 2000Assignee: General Electric CompanyInventors: James Edward Pickett, Amy Kathleen Simonian
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Patent number: 6031033Abstract: Weatherable polycarbonate compositions (formulations or blends) comprise at least one of a piperazinone and piperazine dione based HALS, and polyether based. The combination of these HALS and polyether based polymers exhibits a synergy that results in enhanced protection of the polycarbonate compositions by imparting photostability to the polycarbonate formulations, thereby reducing yellowing or other forms of light induced degradation.Type: GrantFiled: November 25, 1997Date of Patent: February 29, 2000Assignee: General Electric CompanyInventors: James Edward Pickett, Randall Lee Carter
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Patent number: 5990188Abstract: The present invention provides the discovery of an improved radiation curable coating composition comprising at least one acrylic monomer, a photoinitiator, and an ultraviolet light absorber selected from triazine or a dibenzoyl resorcinol derivative or a mixture thereof, the dibenzoyl resorcinol derivative having the formula ##STR1## where Ar and Ar' are independently substituted or unsubstituted monocyclic or polycyclic aryl groups and R' is H or a linear or branched alkyl chain having less than about 10 carbons bearing a --Si(OR.sup.2).sub.3, where R.sup.2 is a C.sub.1 to C.sub.6 alkyl group.Type: GrantFiled: August 15, 1996Date of Patent: November 23, 1999Assignee: General Electric CompanyInventors: Gautam Ambalal Patel, James Edward Pickett, Gregory Ronald Gillette, George Frederic Medford
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Patent number: 5981073Abstract: Novel dibenzoylresorcinol-based compounds are disclosed wherein the dibenzoylresorcinol is bonded to the residue of either an alcohol or a carboxylic acid group, via a methylene carboxylate linking group; and wherein the dibenzoylresorcinol is bonded directly to a substituted or unsubstituted aryl group which does not include a pendent hydroxyl group. The groups attached to the dibenzoylresorcinol may contain a wide variety of functional sites which permit further reaction, e.g., copolymerization. The described compounds are very useful as UV light absorbers and may be used to form improved coating compositions which usually include a transparent, polymeric matrix material. The coating compositions may be applied to various substrates, e.g., thermoplastics, to afford a selection of enhanced properties, such as UV light resistance and abrasion resistance.Type: GrantFiled: January 16, 1997Date of Patent: November 9, 1999Assignee: General Electric CompanyInventors: James Edward Pickett, Wen P Liao, Amy Kathleen Simonian, Gregory Ronald Gillette
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Patent number: 5959012Abstract: An epoxylated DBR, dibenzoylresorcinol and various derivatives thereof have been prepared to show usefulness in coatings due to compatibility and solubility. Such coatings can be acrylics, epoxies, or silicone hardcoats which are thermally or photo cured thermoset, or thermoplastic coating materials in a variety of solvent types. The disclosed UV absorber also has the advantage of a higher molecular weight and lower volatility than DBR alone thus providing processing advantages.Type: GrantFiled: August 11, 1997Date of Patent: September 28, 1999Assignee: General Electric CompanyInventors: Amy Kathleen Simonian, Gregory Ronald Gillette, James Edward Pickett
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Patent number: 5916997Abstract: Disclosed are weatherable polyester soft block copolymer compositions comprising copolymers of resorcinol or alternatively phenol, aromatic dicarboxylic acid, and a aliphatic dicarboxylic acid based structural units. These polyester soft block copolymers comprise a substantial proportion of direct linkages between the resorcinol or alternatively the phenol, and the aromatic dicarboxylic acid based structural units, the balance of the linkages being between resorcinol and the aliphatic dicarboxylic acid based structural units.Type: GrantFiled: February 25, 1998Date of Patent: June 29, 1999Assignee: General Electric CompanyInventors: Jimmy Lynn Webb, Randall Lee Carter, Tiberiu Mircca Siclovan, Matthew Hal Littlejohn, James Edward Pickett
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Patent number: 5905172Abstract: Novel dibenzoylresorcinol compositions capable of absorbing ultraviolet light having the formula ##STR1## where Ar.sub.1 and Ar.sub.2 are independently substituted or unsubstituted monocyclic or polycyclic aryl groups, R is hydrogen, an aryl group, or a linear or branched alkyl chain having less than about 10 carbons, and Ar.sub.3 is an aryl group bearing at least one hydroxyl group. Methods of making the compositions are provided. The novel dibenzoylresorcinol compositions are methylene-bridged dibenzoylresorcinol derivatives having a phenol group on the bridging methylene and are compatible in coating compositions to improve the weatherability of thermoplastic substrates.Type: GrantFiled: November 4, 1997Date of Patent: May 18, 1999Assignee: General Electric CompanyInventors: James Edward Pickett, Amy Kathleen Simonian
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Patent number: 5869554Abstract: Weatherable polycarbonate compositions (formulations or blends) comprise at least one of a piperazinone and piperazine dione based HALS, and at least one of a benzotriazole, benzophenone, triazine, oxanilide, and cyanoacrylate based UVA. The combination of these HALS and UVA exhibits a synergy that results in enhanced protection of the polycarbonate compositions by imparting photostability to the polycarbonate formulations, thereby reducing yellowing or other forms of light induced degradation.Type: GrantFiled: September 2, 1997Date of Patent: February 9, 1999Assignee: General Electric CompanyInventors: James Edward Pickett, Randall Lee Carter
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Patent number: 5869185Abstract: A polycarbonate substrate coated with an acrylic coating containing at least one polybenzoylresorcinol, and optionally a silicone hardcoat on the acrylic coating, wherein said at least one polybenzoylresorcinol has the formula ##STR1## wherein each A is independently a substituted or unsubstituted monocyclic aromatic radical wherein any substituents are hydrogen, halogen, alkoxy, C.sub.1-8 alkyl, or hydroxy, and R is hydrogen or a linear or branched aliphatic radical having less that about 10 carbon atoms.Type: GrantFiled: June 21, 1996Date of Patent: February 9, 1999Assignee: General Electric CompanyInventors: Steven Roger Bahr, James Edward Pickett, Karen Kueck Webb
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Patent number: 5856486Abstract: The instant invention relates to weatherable polycarbonate compositions (formulations or blends) comprising piperazinone or piperazine dione based HALS. These piperazinone or piperazine dione based HALS impart photostability to the polycarbonate formulations, thereby reducing yellowing or other forms of light induced degradation.Type: GrantFiled: August 27, 1997Date of Patent: January 5, 1999Assignee: General Electric CompanyInventors: James Edward Pickett, Randall Lee Carter, Gary Eugene Spilman