Patents by Inventor Boh C. Tsai
Boh C. Tsai 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: 9370916Abstract: An oxygen-scavenging multi-layer container and methods of making, controlling, and using the same are disclosed.Type: GrantFiled: February 4, 2014Date of Patent: June 21, 2016Assignee: Mullinix Packages, Inc.Inventors: Brian Schmitz, Luther A. Gross, Boh C. Tsai, Matt Schiffli, Gary Klimek
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Patent number: 9340316Abstract: An oxygen-scavenging multi-layer container and methods of making, controlling, and using the same are disclosed.Type: GrantFiled: February 4, 2014Date of Patent: May 17, 2016Assignee: Mullinix Packages, Inc.Inventors: Brian Schmitz, Luther A. Gross, Boh C. Tsai, Matt Schiffli, Gary Klimek
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Publication number: 20140251857Abstract: An oxygen-scavenging multi-layer container and methods of making, controlling, and using the same are disclosed.Type: ApplicationFiled: February 4, 2014Publication date: September 11, 2014Applicant: Mullinix Packages, Inc.Inventors: Brian Schmitz, Luther A. Gross, Boh C. Tsai, Matt Schiffli, Gary Klimek
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Publication number: 20140251993Abstract: An oxygen-scavenging multi-layer container and methods of making, controlling, and using the same are disclosed.Type: ApplicationFiled: February 4, 2014Publication date: September 11, 2014Applicant: Mullinix Packages, Inc.Inventors: Brian Schmitz, Luther A. Gross, Boh C. Tsai, Matt Schiffli, Gary Klimek
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Patent number: 6586514Abstract: Oxygen-scavenging compositions comprising an oxidizable metal component, an electrolyte component and a solid, non-electrolytic, acidifying component. When blended with soft, flexible polymeric resins, these compositions exhibit good oxygen-scavenging performance with improved oxidation efficiency relative to compositions containing an oxidizable metal component, an electrolyte, and an acidifying component combined with a more rigid thermoplastic resins. Selection of a thermally stable non-electrolytic, acidifying component is important when melt compounding the compositions into polymeric resins and particularly for extrusion coating applications. The compositions can be used directly as an oxygen absorbent resin melt-fabricated into a wide variety of oxygen-scavenging packaging articles or as concentrates in combination with other thermoplastic resins.Type: GrantFiled: January 4, 2002Date of Patent: July 1, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Weilong L. Chiang, Boh C. Tsai, Stephen Y. Chen, Lakshmi N. Venkateshwaran
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Publication number: 20020086929Abstract: Oxygen-scavenging compositions comprising an oxidizable metal component, an electrolyte component and a solid, non-electrolytic, acidifying component. When blended with soft, flexible polymeric resins, these compositions exhibit good oxygen-scavenging performance with improved oxidation efficiency relative to compositions containing an oxidizable metal component, an electrolyte, and an acidifying component combined with a more rigid thermoplastic resins. Selection of a thermally stable non-electrolytic, acidifying component is important when melt compounding the compositions into polymeric resins and particularly for extrusion coating applications. The compositions can be used directly as an oxygen absorbent resin melt-fabricated into a wide variety of oxygen-scavenging packaging articles or as concentrates in combination with other thermoplastic resins.Type: ApplicationFiled: January 4, 2002Publication date: July 4, 2002Inventors: Weilong L. Chiang, Boh C. Tsai, Stephen Y. Chen, Lakshmi N. Venkateshwaran
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Patent number: 6369148Abstract: Oxygen-scavenging compositions comprising an oxidizable metal component, an electrolyte component and a solid, non-electrolytic, acidifying component. When blended with soft, flexible polymeric resins, these compositions exhibit good oxygen-scavenging performance with improved oxidation efficiency relative to compositions containing an oxidizable metal component, an electrolyte, and an acidifying component combined with a more rigid thermoplastic resins. Selection of a thermally stable non-electrolytic, acidifying component is important when melt compounding the compositions into polymeric resins and particularly for extrusion coating applications. The compositions can be used directly as an oxygen absorbent resin melt-fabricated into a wide variety of oxygen-scavenging packaging articles or as concentrates in combination with other thermoplastic resins.Type: GrantFiled: March 18, 1998Date of Patent: April 9, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Weilong L. Chiang, Boh C. Tsai, Stephen Y. Chen, Lakshmi N. Venkateshwaran
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Publication number: 20010018480Abstract: Oxygen-scavenging compositions comprising an oxidizable metal component, an electrolyte component and a solid, non-electrolytic, acidifying component. When blended with soft, flexible polymeric resins, these compositions exhibit good oxygen-scavenging performance with improved oxidation efficiency relative to compositions containing an oxidizable metal component, an electrolyte, and an acidifying component combined with a more rigid thermoplastic resins. Selection of a thermally stable non-electrolytic, acidifying component is important when melt compounding the compositions into polymeric resins and particularly for extrusion coating applications. The compositions can be used directly as an oxygen absorbent resin melt-fabricated into a wide variety of oxygen-scavenging packaging articles or as concentrates in combination with other thermoplastic resins.Type: ApplicationFiled: March 18, 1998Publication date: August 30, 2001Inventors: WEILONG L. CHIANG, BOH C. TSAI, STEPHEN Y. CHEN, LAKSHMI N. VENKATESHWARAN
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Patent number: 5556926Abstract: Concentrates produced by melt processing a branching agent and a polyester carrier are disclosed. The concentrates are useful in melt processing polyesters. The concentrates contain sufficiently high concentrations of a branching agent to minimize the formation of crosslinked compounds in the concentrates. Process for using the concentrate also are disclosed.Type: GrantFiled: January 30, 1996Date of Patent: September 17, 1996Assignee: Amoco CorporationInventors: George E. Rotter, Weilong Chiang, Boh C. Tsai, John L. Melquist, Cheryl A. Pauer, Stephen Y. Chen
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Patent number: 5536793Abstract: Concentrates produced by melt processing a branching agent and a polyester carrier are disclosed. The concentrates are useful in melt processing polyesters. The concentrates contain sufficiently high concentrations of a branching agent to minimize the formation of crosslinked compounds in the concentrates. Process for using the concentrate also are disclosed.Type: GrantFiled: June 7, 1995Date of Patent: July 16, 1996Assignee: Amoco CorporationInventors: George E. Rotter, Weilong Chiang, Boh C. Tsai, John L. Melquist, Cheryl A. Pauer, Stephen Y. Chen
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Patent number: 5446111Abstract: Disclosed is a process for obtaining polyester articles, including foamed articles, containing low levels of extractable branching agent. The process comprises: (1) forming a molten mixture comprising (i) a major amount of a first resin composition comprising polyester and from 0 up to about 1 wt. % of a compound capable of branching the polyester, and (ii) a minor amount of a second polyester resin composition comprising at least about 50 wt. % polyester resin and greater than about 2 wt. % of a compound capable of branching the polyester, wherein the relative amounts of (i) and (ii) are such that said molten mixture comprises from about 0.1 wt. % to about 1 wt. % of said branching compound; (2) adding a blowing agent to the molten mixture; and (3) extruding the resultant mixture to obtain a foam. The invention is also directed to the second composition used in the above process, and foamed polyester articles obtained from the process.Type: GrantFiled: May 12, 1994Date of Patent: August 29, 1995Assignee: Amoco CorporationInventors: George E. Rotter, John L. Melquist, Weilong Chiang, Boh C. Tsai, John J. Kelly
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Patent number: 5340846Abstract: Disclosed is a process for obtaining polyester articles, including foamed articles, containing low levels of extractable branching agent. The process comprises: (1) forming a molten mixture comprising (i) a major amount of a first resin composition comprising polyester and from 0 up to about 1 wt. % of a compound capable of branching the polyester, and (ii) a minor amount of a second polyester resin composition comprising at least about 50 wt. % polyester resin and greater than about 2 wt. % of a compound capable of branching the polyester, wherein the relative amounts of (i) and (ii) are such that said molten mixture comprises from about 0.1 wt. % to about 1 wt. % of said branching compound; (2) adding a blowing agent to the molten mixture; and (3) extruding the resultant mixture to obtain a foam. The invention is also directed to the second composition used in the above process, and foamed polyester articles obtained from the process.Type: GrantFiled: December 17, 1993Date of Patent: August 23, 1994Assignee: Amoco CorporationInventors: George E. Rotter, John L. Melquist, Weilong Chiang, Boh C. Tsai, John J. Kelly
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Patent number: 5288764Abstract: Disclosed is a process for obtaining polyester articles, including foamed articles, containing low levels of extractable branching agent. The process comprises: (1) forming a molten mixture comprising (i) a major amount of a first resin composition comprising polyester and from 0 up to about 1 wt. % of a compound capable of branching the polyester, and (ii) a minor amount of a second polyester resin composition comprising at least about 50 wt. % polyester resin and greater than about 2 wt. % of a compound capable of branching the polyester, wherein the relative amounts of (i) and (ii) are such that said molten mixture comprises from about 0.1 wt. % to about 1 wt. % of said branching compound; (2) adding a blowing agent to the molten mixture; and (3) extruding the resultant mixture to obtain a foam. The invention is also directed to the second composition used in the above process, and foamed polyester articles obtained from the process.Type: GrantFiled: January 29, 1993Date of Patent: February 22, 1994Assignee: Amoco CorporationInventors: George E. Rotter, John L. Melquist, Weilong Chiang, Boh C. Tsai, John J. Kelly
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Patent number: 4880129Abstract: A method is provided for obtaining an acceptable configuration of a thermally processed container packed with food. Improvement in container configuration is attained by proper container design, by maintaining proper headspace of gases in the container during thermal processing, proper pressure outside the container during the cooking cycle and cooling cycle of the process and/or by controlled reforming of the bottom wall of the container. Further improvements are attained by controlling the thermal history of the empty container, such as by pre-shrinking the container before it is filled with food and sealed.Type: GrantFiled: March 9, 1987Date of Patent: November 14, 1989Assignee: American National Can CompanyInventors: Robert J. McHenry, Joseph B. Brito, Wilson T. Piatt, Jr., Robert J. Reed, Krishnaraju Varadarajan, Kenneth B. Spencer, Boh C. Tsai, Mark A. Williams, Donald C. Vosti, James A. Wachtel
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Patent number: 4702966Abstract: This disclosure includes an activatable oxygen scavenger used as a part of a packaging structure for comestibles.Type: GrantFiled: June 5, 1985Date of Patent: October 27, 1987Assignee: American Can CompanyInventors: Christopher J. Farrell, Boh C. Tsai
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Patent number: 4667454Abstract: A method is provided for obtaining an acceptable configuration of a thermally processed container packed with food. Improvement in container configuration is attained by proper container design, by maintaining proper headspace of gases in the container during thermal processing, proper pressure outside the container during the cooking cycle and cooling cycle of the process and/or by controlled reforming of the bottom wall of the container. Further improvements are attained by controlling the thermal history of the empty container, such as by pre-shrinking the container before it is filled with food and sealed.Type: GrantFiled: July 3, 1984Date of Patent: May 26, 1987Assignee: American Can CompanyInventors: Robert J. McHenry, Joseph B. Brito, Wilson T. Piatt, Jr., Robert J. Reed, Krishnaraju Varadarajan, Kenneth B. Spencer, Boh C. Tsai, Mark A. Williams, Donald C. Vosti, James A. Wachtel
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Patent number: 4642968Abstract: A method is provided for obtaining an acceptable configuration of a thermally processed plastic container packed with food. Improvement in container configuration is attained by proper container design and by maintaining proper headspace of gases in the container during thermal processing and/or by controlled reforming of the bottom wall of the container. Further improvements are attained by controlling the thermal history of the empty container, such as by pre-shrinking the container before it is filled with food and sealed.Type: GrantFiled: January 5, 1983Date of Patent: February 17, 1987Assignee: American Can CompanyInventors: Robert J. McHenry, Joseph B. Brito, Wilson T. Piatt, Jr., Robert J. Reed, Krishnaraju Vavadarajan, Kenneth B. Spencer, Boh C. Tsai, Mark A. Williams, Donald C. Vosti, James A. Wachtel
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Patent number: 4579757Abstract: Off-flavor development is alleviated, or substantially minimized, in thermally processed comestibles packed in plastic containers. The container wall which is in contact with the comestibles is made of a polymer (e.g., polyethylene) containing low vinyl group concentration and low carbonyl group content after melt processing.Type: GrantFiled: January 5, 1983Date of Patent: April 1, 1986Assignee: American Can CompanyInventors: Cheh-Jen Su, Boh C. Tsai, James A. Wachtel
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Patent number: 4536409Abstract: This disclosure includes an activatable oxygen scavenger used as a part of a packaging structure for comestibles.Type: GrantFiled: January 23, 1981Date of Patent: August 20, 1985Assignee: American Can CompanyInventors: Christopher J. Farrell, Boh C. Tsai
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Patent number: 4464443Abstract: In a multi-layer polymeric structure having an interior oxygen barrier layer of a moisture sensitive polymeric material such as ethylene-vinyl alcohol, drying agents are incorporated in the structure, particularly in a layer or layers proximate to the barrier layer, to limit the moisture content of the barrier layer to maintain barrier properties.Type: GrantFiled: October 3, 1983Date of Patent: August 7, 1984Assignee: American Can CompanyInventors: Christopher J. Farrell, Boh C. Tsai, James A. Wachtel