Patents by Inventor Stefanos L. Sakellarides

Stefanos L. Sakellarides 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).

  • Publication number: 20230017749
    Abstract: A balloon formed from a lamination. The lamination includes a first layer, a second layer, a graphic design and a third layer. The first layer including from about 10 to about 90 wt. % crystalline polyester and from about 10 to about 90 wt. % of a formability enhancer to assist in increasing the polymeric chain flexibility. The formability enhancer has a melting point less than about 230° C. The first layer has a MD and a TD Young's Modulus of at least 10% lower than a crystalline polyester film in the absence of the formability enhancer. The second layer is a metallic barrier layer. The graphic design is printed onto a surface of the metallic barrier layer. The third layer is a sealant layer. The first layer is located between the second and third layers. The balloon contains a gas lighter than air.
    Type: Application
    Filed: September 14, 2022
    Publication date: January 19, 2023
    Inventors: Stefanos L. Sakellarides, Paige Manuel, Jan Moritz, Dean Borchardt, Paul A. Ansolabehere
  • Patent number: 11318721
    Abstract: A formable biaxially-oriented film includes a first layer. The first layer includes from about 10 to about 90 wt. % crystalline polyester and from about 10 to about 90 wt. % of a formability enhancer to assist in increasing the polymeric chain flexibility. The formability enhancer has a melting point less than about 230° C. The film has a MD and a TD Young's Modulus of at least 10% lower than a crystalline polyester film in the absence of the formability enhancer. The film may further include a second layer, which includes an amorphous copolyester. The second layer may be adjacent to or attached to the first layer.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: May 3, 2022
    Assignee: Toray Plastics (America), Inc.
    Inventors: Stefanos L. Sakellarides, Paige Manuel, Jan Moritz
  • Publication number: 20200139690
    Abstract: A formable biaxially-oriented film includes a first layer. The first layer includes from about 10 to about 90 wt. % crystalline polyester and from about 10 to about 90 wt. % of a formability enhancer to assist in increasing the polymeric chain flexibility. The formability enhancer has a melting point less than about 230° C. The film has a MD and a TD Young's Modulus of at least 10% lower than a crystalline polyester film in the absence of the formability enhancer. The film may further include a second layer, which includes an amorphous copolyester. The second layer may be adjacent to or attached to the first layer.
    Type: Application
    Filed: December 26, 2019
    Publication date: May 7, 2020
    Inventors: Stefanos L. Sakellarides, Paige Manuel, Jan Moritz
  • Patent number: 10137625
    Abstract: A laminate film including at least one bio-based polyester layer. The polyester layer has a radiocarbon (14C) content of at least 21.5 pMC. The laminate film may further have additional layers such as a second bio-based polyester resin-containing layer of at least about 21.5 pMC radiocarbon content, a metal layer, or combinations thereof.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: November 27, 2018
    Assignee: TORAY PLASTICS (AMERICA), INC.
    Inventors: Stefanos L. Sakellarides, Keunsuk P. Chang
  • Publication number: 20170368807
    Abstract: A formable biaxially-oriented film includes a first layer. The first layer includes from about 10 to about 90 wt. % crystalline polyester and from about 10 to about 90 wt. % of a formability enhancer to assist in increasing the polymeric chain flexibility. The formability enhancer has a melting point less than about 230° C. The film has a MD and a TD Young's Modulus of at least 10% lower than a crystalline polyester film in the absence of the formability enhancer. The film may further include a second layer, which includes an amorphous copolyester. The second layer may be adjacent to or attached to the first layer.
    Type: Application
    Filed: October 27, 2016
    Publication date: December 28, 2017
    Inventors: Stefanos L. Sakellarides, Paige Manuel, Jan Moritz
  • Publication number: 20170368809
    Abstract: A balloon formed from a lamination. The lamination includes a first layer, a second layer, a graphic design and a third layer. The first layer including from about 10 to about 90 wt. % crystalline polyester and from about 10 to about 90 wt. % of a formability enhancer to assist in increasing the polymeric chain flexibility. The formability enhancer has a melting point less than about 230° C. The first layer has a MD and a TD Young's Modulus of at least 10% lower than a crystalline polyester film in the absence of the formability enhancer. The second layer is a metallic barrier layer. The graphic design is printed onto a surface of the metallic barrier layer. The third layer is a sealant layer. The first layer is located between the second and third layers. The balloon contains a gas lighter than air.
    Type: Application
    Filed: October 27, 2016
    Publication date: December 28, 2017
    Inventors: Stefanos L. Sakellarides, Paige Manuel, Jan Moritz, Dean Borchardt, Paul A. Ansolabehere
  • Patent number: 9656447
    Abstract: A multi-layer sheet suitable as sealable or peelable sheet specially used for closing foodstuff containers. This multi-layer sheet comprises a polymeric substrate layer and a seal or a peel-seal layer. The multilayer composite film has at least two main component layers, namely in order, a polymeric substrate layer for mechanical strength and a heat-sealable layer applied by extrusion-coating, comprising a polyester of at least one aromatic dicarboxylic acid and at least one aliphatic dicarboxylic acid and at least one aliphatic diol. The polyester substrate layer comprises a crystallizable polyester base layer and an amorphous polyester sealable skin layer. The heat-sealable layer is slow-crystallizing with a glass transition temperature 50° F. or lower and melting point 250-320° F.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 23, 2017
    Assignee: TORAY PLASTICS (AMERICA), INC.
    Inventor: Stefanos L Sakellarides
  • Patent number: 9573348
    Abstract: A multi-layer film structure suitable as a sealable sheet used for closing foodstuff containers with a peelable seal. This multi-layer film comprises a polyester substrate layer and a heat-sealable layer. The heat-sealable layer is applied by coextrusion and contains an epoxy-containing thermoplastic polymer composition comprising residues of epoxy-containing monomers selected from glycidyl methacrylate, glycidyl acrylate, allyl glycidyl ether, 3,4-epoxy-1-butene, and a mixture of any two or more of such monomers.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: February 21, 2017
    Assignee: TORAY PLASTICS (AMERICA), INC.
    Inventor: Stefanos L. Sakellarides
  • Patent number: 9561676
    Abstract: A bio-based polyester thin film substrate for thermal transfer printing ribbon. The bio-based polyester thermal transfer ribbon substrate film has a radiocarbon content of at least 12 pMC. The film exhibits excellent uniformity, handling, and processability, substantially equivalent to petroleum-based counterparts, while being derived wholly or partly from non-petroleum sources.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 7, 2017
    Assignee: TORAY PLASTICS (AMERICA), INC.
    Inventors: Stefanos L. Sakellarides, Milan William Moscaritolo
  • Patent number: 9156966
    Abstract: A method of incorporating a UV light absorber into a polyester during the esterification or the condensation process by selecting the UV absorber from a class that is substantially not reactive with the polyester raw materials, is stable in the conditions of polycondensation or polymerization, and does not suffer loss through volatilization, resulting in an incorporation yield of 70% or higher, preferably 90% or higher. One embodiment comprises selecting the appropriate compound from the class of triazines and incorporating is as a solid powder in the beginning of the esterification. Another embodiment comprises selecting the appropriate compound from the class of triazines and incorporating it in the form of slurry during the time interval between esterification and condensation. Other embodiments include novel resins and films made by the UV absorber containing polyester resin made by the methods disclosed herein.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: October 13, 2015
    Assignee: TORAY PLASTICS (AMERICA), INC.
    Inventors: Stefanos L Sakellarides, Gordon Vincent Sharps, Jr.
  • Publication number: 20150183957
    Abstract: A method of incorporating a UV light absorber into a polyester during the esterification or the condensation process by selecting the UV absorber from a class that is substantially not reactive with the polyester raw materials, is stable in the conditions of polycondensation or polymerization, and does not suffer loss through volatilization, resulting in an incorporation yield of 70% or higher, preferably 90% or higher. One embodiment comprises selecting the appropriate compound from the class of triazines and incorporating is as a solid powder in the beginning of the esterification. Another embodiment comprises selecting the appropriate compound from the class of triazines and incorporating it in the form of slurry during the time interval between esterification and condensation. Other embodiments include novel resins and films made by the UV absorber containing polyester resin made by the methods disclosed herein.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 2, 2015
    Applicant: TORAY PLASTICS (AMERICA), INC.
    Inventors: Stefanos L SAKELLARIDES, Gordon Vincent SHARPS, JR.
  • Publication number: 20140127515
    Abstract: A multi-layer film structure suitable as sealable sheet specially used for closing foodstuff containers producing a peelable seal. This multi-layer film comprises a polyester substrate layer and a sheat-sealable layer. The heat-sealable layer is applied by coextrusion and comprises as major component a polymer composition comprising residues of epoxy-containing monomers selected from glycidyl methacrylate, glycidyl acrylate, allyl glycidyl ether, 3,4-epoxy-1-butene, or a mixture of any two or more of such monomers.
    Type: Application
    Filed: November 5, 2012
    Publication date: May 8, 2014
    Inventor: STEFANOS L. SAKELLARIDES
  • Publication number: 20140113132
    Abstract: A bio-based polyester thin film substrate for thermal transfer printing ribbon. The bio-based polyester thermal transfer ribbon substrate film has a radiocarbon content of at least 12 pMC. The film exhibits excellent uniformity, handling, and processability, substantially equivalent to petroleum-based counterparts, while being derived wholly or partly from non-petroleum sources.
    Type: Application
    Filed: December 23, 2013
    Publication date: April 24, 2014
    Applicant: TORAY PLASTICS (AMERICA), INC.
    Inventors: Stefanos L. SAKELLARIDES, Milan William MOSCARITOLO
  • Publication number: 20140065315
    Abstract: A lidding film including a polyester film including a bio-based polyester, and an extrusion coated heat seal layer including a bio-based polymer. The polyester film may include a biaxially oriented core layer including bio-based polyester and an amorphous copolyester skin layer. The heat seal layer may include a low density polyethylene.
    Type: Application
    Filed: May 24, 2013
    Publication date: March 6, 2014
    Applicant: TORAY PLASTICS (AMERICA), INC.
    Inventors: Roberto SIU, Gordon Vincent Sharps, Stefanos L. Sakellarides, Keunsuk P. Chang
  • Publication number: 20140065431
    Abstract: A multi-layer sheet suitable as sealable or peelable sheet specially used for closing foodstuff containers. This multi-layer sheet comprises a polymeric substrate layer and a seal or a peel-seal layer. The multilayer composite film has at least two main component layers, namely in order, a polymeric substrate layer for mechanical strength and a heat-sealable layer applied by extrusion-coating, comprising a polyester of at least one aromatic dicarboxylic acid and at least one aliphatic dicarboxylic acid and at least one aliphatic diol. The polyester substrate layer comprises a crystallizable polyester base layer and an amorphous polyester sealable skin layer. The heat-sealable layer is slow-crystallizing with a glass transition temperature 50° F. or lower and melting point 250-320° F.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: Toray Plastics (America), Inc.
    Inventor: STEFANOS L. SAKELLARIDES
  • Publication number: 20140065398
    Abstract: A lidding film including a polyester film including a bio-based polyester, and an extrusion coated heat seal layer including a bio-based polymer. The polyester film may include a biaxially oriented core layer including bio-based polyester and an amorphous copolyester skin layer. The heat seal layer may include a low density polyethylene.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: TORAY PLASTICS (AMERICA), INC.
    Inventors: Roberto SIU, Gordon Vincent SHARPS, Stefanos L. SAKELLARIDES, Keunsuk P. CHANG
  • Publication number: 20140004286
    Abstract: A balloon made from a laminate film including at least one bio-based polyester layer of at least about 19.0 pMC of radiocarbon (14C) content is disclosed. The laminate film could further have additional layers such as a second bio-based polyester resin-containing layer of at least about 21.5 pMC of radiocarbon (14C) content, a linear low density polyethylene bio-based resin-containing layer of at least about 94 pMC of radiocarbon (14C) content, a metal layer, or combinations thereof.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 2, 2014
    Applicant: Toray Plastics (America), Inc.
    Inventors: Stefanos L. SAKELLARIDES, Keunsuk P. Chang
  • Publication number: 20130011631
    Abstract: A laminate film including at least one bio-based polyester layer. The polyester layer has a radiocarbon (14C) content of at least 21.5 pMC. The laminate film may further have additional layers such as a second bio-based polyester resin-containing layer of at least about 21.5 pMC radiocarbon content, a metal layer, or combinations thereof.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 10, 2013
    Applicant: TORAY PLASTICS (AMERICA), INC.
    Inventors: Stefanos L. SAKELLARIDES, Keunsuk P. CHANG
  • Publication number: 20040026827
    Abstract: Precrystallizing an amorphous crystallizable thermoplastic article, such as an amorphous polyethylene terephthalate article, by heating to thermally induce crystallinity, then orienting at a temperature that is preferably greater than the crystallizing temperature, provides articles having substantially improved thermal dimensional stability together with high tensile modulus properties. The process is particularly useful in the production of containers suitable for use in hot-fill applications.
    Type: Application
    Filed: June 12, 2003
    Publication date: February 12, 2004
    Inventors: Issam Dairanieh, Stefanos L. Sakellarides
  • Patent number: 6495710
    Abstract: The synthesis of dimethyl-1,5-naphthalenedicarboxylate and polymers and articles formed therefrom is disclosed, as well as applications for dimethyl-1,5-naphthalenedicarboxylate, its corresponding acid 1,5-NDA, and various synthesis intermediates.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: December 17, 2002
    Assignee: BP Corporation North America Inc.
    Inventors: John A. Macek, Bruce I. Rosen, Juergen K. Holzhauer, John S. Bramlet, Larry D. Lillwitz, David J. Schneider, Lawrence L. Lang, Edward E. Paschke, John M. Weis, Yenamandra Viswanath, Stefanos L. Sakellarides