Patents by Inventor Edwin C. Culbertson
Edwin C. Culbertson 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: 8158230Abstract: A tamper evident composite film is disclosed. The composite film contains a first film layer made from polyester adjacent to a second film layer made from a polyolefin, such as a low density polyethylene. If desired, the composite film can further include a third film layer positioned on the opposite side of the second film layer. The composite film is produced through a coextrusion process. In one embodiment, the composite film can be biaxially stretched prior to use. The composite film is constructed so that the first film layer will delaminate from the second film layer when the composite film is tampered with or otherwise mishandled.Type: GrantFiled: November 6, 2007Date of Patent: April 17, 2012Assignee: Mitsubishi Polyester Film, Inc.Inventors: Edwin C. Culbertson, Kenneth J. Muschelewicz
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Publication number: 20090117307Abstract: A tamper evident composite film is disclosed. The composite film contains a first film layer made from polyester adjacent to a second film layer made from a polyolefin, such as a low density polyethylene. If desired, the composite film can further include a third film layer positioned on the opposite side of the second film layer. The composite film is produced through a coextrusion process. In one embodiment, the composite film can be biaxially stretched prior to use. The composite film is constructed so that the first film layer will delaminate from the second film layer when the composite film is tampered with or otherwise mishandled.Type: ApplicationFiled: November 6, 2007Publication date: May 7, 2009Applicant: Mitsubishi Polyester Film, Inc.Inventors: Edwin C. Culbertson, Kenneth J. Muschelewicz
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Patent number: 6911255Abstract: An oxygen barrier coating including polyvinyl alcohol and starch. The coating is applied to polymer film, and shows excellent oxygen barrier properties.Type: GrantFiled: May 6, 2002Date of Patent: June 28, 2005Assignee: Mitsubishi Polyester Film, LLCInventors: Robert Posey, Edwin C. Culbertson, Jan C. Westermeier
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Patent number: 6709735Abstract: A film with excellent oxygen barrier properties is disclosed. A barrier coating used thereon is also disclosed, including polyvinyl alcohol and a copolymer of maleic acid and acrylic acid, and wherein the copolymer of maleic acid and acrylic acid has a weight average molecular weight of about 3500 to about 5000. The barrier coating is typically less than about 1 micrometer in thickness and provides an oxygen barrier of less than about 0.3 cc.mil/100 in2/day/atm when tested at 23 degrees Celsius and 0 percent relative humidity according to ASTM D3985. A method of stripping low molecular eight fractions from the copolymer is also disclosed. Metallized coated film according to the present invention shows surprising barrier properties.Type: GrantFiled: November 12, 2002Date of Patent: March 23, 2004Assignee: Mitsubishi Polyester Film, LLCInventors: Robert Posey, Edwin C. Culbertson
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Patent number: 6613430Abstract: The present invention provides a coated polymer film having release properties. The film includes a self-supporting polymer film layer, and a release coating on the film layer. The release coating, which can also be applied to alternate substrates, includes a cross-linkable acrylic and a polyolefin wax. The coating can optionally include a polysiloxane in combination with one or both of the acrylic and polyolefin wax.Type: GrantFiled: September 4, 2001Date of Patent: September 2, 2003Assignee: Mitsubishi Polyester Film, LLCInventors: Edwin C. Culbertson, Stephen J. Gust, Jan C. Westermeier, John M. Heberger, Kenneth J. Muschelewicz, Jeffrey R. Rounsley, Jose F. Alfaro
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Publication number: 20030124365Abstract: A film with excellent oxygen barrier properties is disclosed. A barrier coating used thereon is also disclosed, including polyvinyl alcohol and a copolymer of maleic acid and acrylic acid, and wherein the copolymer of maleic acid and acrylic acid has a weight average molecular weight of about 3500 to about 5000. The barrier coating is typically less than about 1 micrometer in thickness and provides an oxygen barrier of less than about 0.3 cc.mil/100 in2/day/atm when tested at 23 degrees Celsius and 0 percent relative humidity according to ASTM D3985. A method of stripping low molecular weight fractions from the copolymer is also disclosed. Metallized coated film according to the present invention shows surprising barrier properties.Type: ApplicationFiled: November 12, 2002Publication date: July 3, 2003Inventors: Robert Posey, Edwin C. Culbertson
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Publication number: 20020187340Abstract: An oxygen barrier coating including polyvinyl alcohol and starch. The coating is applied to polymer film, and shows excellent oxygen barrier properties.Type: ApplicationFiled: May 6, 2002Publication date: December 12, 2002Inventors: Robert Posey, Edwin C. Culbertson, Jan C. Westermeier
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Publication number: 20020058758Abstract: The present invention provides a coated polymer film having release properties. The film includes a self-supporting polymer film layer, and a release coating on the film layer. The release coating, which can also be applied to alternate substrates, includes a cross-linkable acrylic and a polyolefin wax. The coating can optionally include a polysiloxane in combination with one or both of the acrylic and polyolefin wax.Type: ApplicationFiled: September 4, 2001Publication date: May 16, 2002Applicant: Mitsubishi Polyester Film, LLC.Inventors: Edwin C. Culbertson, Stephen J. Gust, Jan C. Westermeier, John M. Heberger, Kenneth J. Muschelewicz
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Patent number: 5424120Abstract: The present invention describes a polymeric support film coated with a primer coating composition and overcoated with a silicone release coating, thereby forming a silicone release film. Silicone release films are well known and serve as temporary supports for an adhesive or tacky surface such as for labels, pressure sensitive tape, etc. The primer coating composition, before dilution with water, comprises from about 25 to 75% by weight of a glycidoxy silane and from about 75 to 25% by weight of a copolyester. The copolyester comprises from about 40 to 98 mol percent isophthalic acid; from about 0 to about 50 mol percent of at least one aliphatic dicarboxylic acid; from about 2 to about 20 mol percent of at least one sulfonate group attached to a dicarboxylic nucleus; and about 100 mol percent of glycol having from about 2 to 11 carbon atoms. Typical glycidoxy silanes that can be employed in the primer coating composition include glycidoxypropyltrimethoxysilane.Type: GrantFiled: February 10, 1993Date of Patent: June 13, 1995Assignee: Hoechst Celanese CorporationInventor: Edwin C. Culbertson
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Patent number: 5350601Abstract: The present invention describes a process for priming a polymeric film with a primer coating composition and overcoating with a silicone release coating. Silicone release films are well known and serve as temporary supports for an adhesive or tacky surface such as for labels, pressure sensitive tape, etc. The primer coating composition, before dilution with water, comprises from about 25 to 75% by weight of a glycidoxy silane and from about 75 to 25% by weight of a copolyester. The copolyester comprises from about 40 to 98 mol percent isophthalic acid; from about 0 to about 50 mol percent of at least one aliphatic dicarboxylic acid; from about 2 to about 20 mol percent of at least one sulfonate group attached to a dicarboxylic nucleus; and about 100 mol percent of glycol having from about 2 to 11 carbon atoms. Typical glycidoxy silanes that can be employed in the primer coating composition include glycidoxypropyltrimethoxysilane.Type: GrantFiled: November 6, 1991Date of Patent: September 27, 1994Assignee: Hoechst Celanese CorporationInventors: Edwin C. Culbertson, Grover L. Farrar
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Patent number: 5298325Abstract: The present invention describes a polymeric support film coated with a primer coating composition and overcoated with a silicone release coating, thereby forming a silicone release film. Silicone release films are well known and serve as temporary supports for an adhesive or tacky surface such as for labels, pressure sensitive tape etc. The primer coating composition, before dilution with water, comprises from about 25 to 75% by weight of a glycidoxy silane and from about 75 to 25% by weight of a copolyester. The copolyester comprises from about 65 to 98 mol percent isophthalic acid; from about 0 to about 30 mol percent of at least one aliphatic dicarboxylic acid; from about 2 to about 20 mol percent of at least one sulfonate group attached to a dicarboxylic nucleus; and about 100 mol percent of glycol having from about 2 to 11 carbon atoms. Typical glycidoxy silanes that can be employed in the primer coating composition include glycidoxypropyltrimethoxysilane.Type: GrantFiled: February 10, 1993Date of Patent: March 29, 1994Assignee: Hoechst Celanese CorporationInventor: Edwin C. Culbertson
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Patent number: 5212260Abstract: The present invention describes a polymeric support film coated with a primer coating composition and overcoated with a silicone release coating, thereby forming a silicone release film. Silicone release films are well known and serve as temporary supports for an adhesive or tacky surface such as for labels, pressure sensitive tape, etc. The primer coating composition, before dilution with water, comprises from about 25 to 75% by weight of a glycidoxy silane and from about 75 to 25% by weight of a copolyester. The copolyester comprises from about 40 to 98 mol percent isophthalic acid; from about 0 to about 50 mol percent of at least one aliphatic dicarboxylic acid; from about 2 to about 20 mol percent of at least one sulfonate group attached to a dicarboxylic nucleus; and about 100 mol percent of glycol having from about 2 to 11 carbon atoms. Typical glycidoxy silanes that can be employed in the primer coating composition include glycidoxypropyltrimethoxysilane.Type: GrantFiled: November 6, 1991Date of Patent: May 18, 1993Assignee: Hoechst Celanese CorporationInventor: Edwin C. Culbertson
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Patent number: 5212012Abstract: The present invention describes a polymeric support film coated with a primer coating composition and overcoated with a silicone release coating, thereby forming a silicone release film. Silicone release films are well known and serve as temporary supports for an adhesive or tacky surface such as for labels, pressure sensitive tape, etc. The primer coating composition, before dilution with water, comprises from about 25 to 75% by weight of a glycidoxy silane and from about 75 to 25% by weight of a copolyester. The copolyester comprises from about 65 to 98 mol percent isophthalic acid; from about 0 to about 30 mol percent of at least one aliphatic dicarboxylic acid; from about 2 to about 20 mol percent of at least one sulfonate group attached to a dicarboxylic nucleus; and about 100 mol percent of glycol having from about 2 to 11 carbon atoms. Typical glycidoxy silanes that can be employed in the primer coating composition include glycidoxypropyltrimethoxysilane.Type: GrantFiled: October 28, 1991Date of Patent: May 18, 1993Assignee: Hoechst Celanese CorporationInventor: Edwin C. Culbertson
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Patent number: 5114739Abstract: A polyester film having a nodule surface is disclosed. The acrylic coating is preferably a crosslinked composition having a relatively high methyl methacrylate content and specific surfactants. The acrylic coating composition is applied as an aqueous dispersion to polyester film, preferably after corona treatment of the polyester film. The nodule surface reduces the coefficient of friction of the polyester film. The coating composition comprises from 60 to 90 mole percent methyl methacrylate; from 10 to 35 mole percent of at least one modifier selected from the group of ethyl acrylate, propyl acrylate, butyl acrylate, and mixtures of these; and from 3 to 10 mole percent of a crosslinkable monomer or a self-crosslinking monomer selected from the group of N-methylol methacrylamide, N-methylol acrylamide, acrylamide, methacrylamide, and mixtures of these; with from 2 to 15 weight percent of the nonionic surfactant and at least 0.1 percent by weight of the anionic surfactant.Type: GrantFiled: October 28, 1991Date of Patent: May 19, 1992Assignee: Hoechst Celanese CorporationInventors: Edwin C. Culbertson, John M. Heberger
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Patent number: 5096784Abstract: A polyester film having a nodule surface is disclosed. The acrylic coating is preferably a crosslinked composition having a relatively high methyl methacrylate content and specific surfactants. The acrylic coating composition is applied as an aqueous dispersion to polyester film, preferably after corona treatment of the polyester film. The nodule surface reduces the coefficient of friction of the polyester film. The coating composition comprises from 60 to 90 mole percent methyl methacrylate; from 10 to 35 mole percent of at least one modifier selected from the group of ethyl acrylate, propyl acrylate, butyl acrylate, and mixtures of these; and from 3 to 10 mole percent of a crosslinkable monomer or a self-crosslinking monomer selected from the group of N-methylol methacrylamide, N-methylol acrylamide, acrylamide, methacrylamide, and mixtures of these; with from 2 to 15 weight percent of the nonionic surfactant and at least 0.1 percent by weight of the anionic surfactant.Type: GrantFiled: December 20, 1989Date of Patent: March 17, 1992Assignee: Hoechst Celanese CorporationInventors: Edwin C. Culbertson, John M. Heberger
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Patent number: 5077353Abstract: The present invention describes a polymeric support film coated with a primer coating composition and overcoated with a silicone release coating, thereby forming a silicone release film. Silicone release films are well known and serve as temporary supports for an adhesive or tacky surface such as for labels, pressure sensitive tape, etc. The primer coating composition, before dilution with water, comprises from about 25 to 75% by weight of a glycidoxy silane and from about 75 to 25% by weight of a copolyester. The copolyester comprises from about 65 to 98 mol percent isophthalic acid; from about 0 to about 30 mol percent of at least one aliphatic dicarboxylic acid; from about 2 to about 20 mol percent of at least one sulfonate group attached to a dicarboxylic nucleus; and about 100 mol percent of glycol having from about 2 to 11 carbon atoms. Typical glycidoxy silanes that can be employed in the primer coating composition include glycidoxypropyltrimethoxysilane.Type: GrantFiled: November 7, 1990Date of Patent: December 31, 1991Assignee: Hoechst Celanese CorporationInventor: Edwin C. Culbertson
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Patent number: 4745019Abstract: A primer coated, oriented polyester film material is provided wherein the primer is applied in an aqueous medium comprising a water dispersible copolyester consisting essentially of the condensation product of components A, B, C, and D or their polyester forming equivalents as follows:(A) about 60 to 75 mole percent of terephthalic acid;(B) about 15 to 25 mole percent of at least one dicarboxylic acid of the formula HOOC(CH.sub.2).sub.n COOH, wherein n ranges from about 1-11;(C) greater than from about 6 up to about 15 mole percent of at least one sulfomonomer containing an alkali metal sulfonate group attached to a dicarboxylic aromatic nucleus, and(D) Stoichiometric quantities, i.e., about 100 mole percent of at least one aliphatic or cycloaliphatic alkylene glycol copolymerizable therewith having about from 2 to 11 carbon atoms.The copolyester priming layer may be applied to the polyester film at any suitable stage during manufacture of the film, i.e., before or during the stretching operations.Type: GrantFiled: January 23, 1986Date of Patent: May 17, 1988Assignee: American Hoechst CorporationInventors: Robert G. Posey, Edwin C. Culbertson
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Patent number: 4642263Abstract: Plastic films having improved antistatic properties are disclosed having a continuous coating on at least one surface of the film based on a composition comprising a mixture of:(a) a polymeric binder, and(b) a quarternary ammonium salt having the formula: ##STR1## wherein: R is a lower alkyl group having 1 to 3 carbon atoms;R' is an alkyl or alkenyl radical having from about 8 to 20 carbon atoms; andX.sup.- is an anion.The antistat coating composition may be applied to the film material at any suitable stage during manufacture, i.e., after extrusion of the sheet material or before, during or after orienting the sheet. The resultant film is found to possess markedly enhanced antistat properties, good clarity, good slip properties, reclaimability and adhesive properties at higher binder levels rendering it suitable for the application of other coatings.Type: GrantFiled: December 18, 1984Date of Patent: February 10, 1987Assignee: American Hoechst CorporationInventor: Edwin C. Culbertson
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Patent number: 4585687Abstract: A primer coated, oriented polyester film material is provided wherein the primer is applied in an aqueous medium comprising a water dispersible copolyester consisting essentially of the condensation product of components A, B, C, and D or their polyester forming equivalents as follows:(A) about 60 to 75 mole percent of terephthalic acid;(B) about 15 to 25 mole percent of at least one dicarboxylic acid of the formula HOOC(CH.sub.2).sub.n COOH, wherein n ranges from about 1-11;(C) greater than from about 6 up to about 15 mole percent of at least one sulfomonomer containing an alkali metal sulfonate group attached to a dicarboxylic aromatic nucleus, and(D) stoichiometric quantities, i.e., about 100 mole percent of at least one aliphatic or cycloaliphatic alkylene glycol copolymerizable therewith having about from 2 to 11 carbon atoms.The copolyester priming layer may be applied to the polyester film at any suitable stage during manufacture of the film, i.e., before or during the stretching operations.Type: GrantFiled: April 30, 1984Date of Patent: April 29, 1986Assignee: American Hoechst CorporationInventors: Robert G. Posey, Edwin C. Culbertson
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Patent number: 4525419Abstract: A primer coated, oriented plastic film material is provided wherein the primer is applied in an aqueous medium comprising a water dispersible copolyester consisting essentially of the condensation product of components A, B, C, and D or their polyester forming equivalents as follows:(A) about 60 to 75 mole percent of terephthalic acid;(B) about 15 to 25 mole percent of at least one dicarboxylic acid of the formula HOOC(CH.sub.2).sub.n COOH, wherein n ranges from about 1-11;(C) greater than from about 6 up to about 15 mole percent of at least one sulfomonomer containing an alkali metal sulfonate group attached to a dicarboxylic aromatic nucleus, and(D) stoichiometric quantities, i.e., about 100 mole percent of at least one aliphatic or cycloaliphatic alkylene glycol copolymerizable therewith having about from 2 to 11 carbon atoms.The copolyester priming layer may be applied to the plactic film at any suitable stage during manufacture of the film, i.e., before or during the stretching operations.Type: GrantFiled: July 26, 1984Date of Patent: June 25, 1985Assignee: American Hoechst CorporationInventors: Robert G. Posey, Edwin C. Culbertson