Patents by Inventor Mark E. Lindenfelzer
Mark E. Lindenfelzer 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: 11969973Abstract: A recyclable multilayer synthetic foam container that does not wick, for direct and non-direct food contact and aseptic packaging application is disclosed. In one aspect, a container comprises a pre-creased and/or folded multilayer synthetic foam sheet comprising at least one foam layer, that can be hermetically sealed along the edges, wherein the synthetic board sheet is a recyclable material that does not wick. In another aspect, the product has a bending stiffness value greater than 17 in Taber stiffness unit configuration according to TAPPI/ANSI T 489 om-15. In some embodiments, the product can have an oxygen transmission rate of less than 20 cc/m2/24 hr, according to ASTM D3985. In some embodiments, the product can have a water vapor transmission rate of less than 10 gr/m2/24 hr, according to ASTM E398-13.Type: GrantFiled: September 24, 2021Date of Patent: April 30, 2024Assignee: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, David Stirling, John F. Ryan
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Publication number: 20240131825Abstract: A recyclable multilayer synthetic foam container that does not wick, for direct and non-direct food contact and aseptic packaging application is disclosed. In one aspect, a container comprises a pre-creased and/or folded multilayer synthetic foam sheet comprising at least one foam layer, that can be hermetically sealed along the edges, wherein the synthetic board sheet is a recyclable material that does not wick. In another aspect, the product has a bending stiffness value greater than 17 in Taber stiffness unit configuration according to TAPPI/ANSI T 489 om-15. In some embodiments, the product can have an oxygen transmission rate of less than 20 cc/m2/24 hr, according to ASTM D3985. In some embodiments, the product can have a water vapor transmission rate of less than 10 gr/m2/24 hr, according to ASTM E398-13.Type: ApplicationFiled: January 2, 2024Publication date: April 25, 2024Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, David Stirling, John F. Ryan
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Patent number: 11926123Abstract: A multilayer foam film suitable for direct and non-direct food contact and aseptic packaging application is disclosed.Type: GrantFiled: November 18, 2021Date of Patent: March 12, 2024Assignee: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, Eric V. Fredrickson
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Publication number: 20240075717Abstract: This invention relates to an anisotropic multilayer film and the process of making a multilayer film, wherein a supercritical blowing agent is introduced to at least one layer, wherein at least one layer comprises 10 to 100 percent by weight LLDPE with a melt index of 0.2 to 2 g/10 min. The film in this invention can have a surface with an average Sheffield smoothness, according to TAPPI T 538, of less than 100. The film in this invention can have a puncture propagation tear resistance, in accordance with ASTM D2582, greater than 500 g/mil.Type: ApplicationFiled: May 31, 2023Publication date: March 7, 2024Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, James K. Sakorafos, Nicholas R. Torraco, Mark E. Lindenfelzer
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Patent number: 11872797Abstract: A method of making multilayer foam sheet from recycled polyester sources, which may be used for packaging applications. The method comprises a co-extrusion system comprising at least two single screw extruders. A low I.V. polyester feedstock comprising up to 100% of the polyester flakes from recycled sources with an intrinsic viscosity (I.V.) of lower than 0.8 dL/g as measured by ASTM D4603-18 is directly being fed into the extruders. Supercritical physical blowing agent is introduced into the melted polyester feedstock in at least one of the extruders wherein the processing temperature is in the range of 15% lower than the melting temperature and 15% higher than the melting temperature. Then, coextruding the feedstock from the extruders of the co-extrusion system through a flat sheet die to make a multilayer foam sheet, wherein at least one layer is a foam layer comprising low I.V. polyester.Type: GrantFiled: January 13, 2022Date of Patent: January 16, 2024Assignee: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, James K. Sakorafos
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Patent number: 11773232Abstract: Thermoformed polymeric foam articles are described herein In some embodiments, the articles are made by a manufacturing method (e.g., a continuous process) which involves the extrusion and subsequent thermoforming of a blowing agent containing thermoplastic sheet. The thermoformed polymeric foam articles may have a lower density than the precursor sheet from which they are formed. In some but not all embodiments, the precursor sheet is a multi-layer sheet which includes at least one foam layer. In such embodiments, the thermoformed articles also include multiple layers and at least one foam layer.Type: GrantFiled: September 29, 2014Date of Patent: October 3, 2023Assignee: MuCell Extrusion, LLCInventors: Mark E. Lindenfelzer, Simon Dominey, Samuel Edward Dix, Jere R. Anderson
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Patent number: 11691397Abstract: This invention relates to an anisotropic multilayer film and the process of making a multilayer film, wherein a supercritical blowing agent is introduced to at least one layer, wherein at least one layer comprises 10 to 100 percent by weight LLDPE with a melt index of 0.2 to 2 g/10 min. The film in this invention can have a surface with an average Sheffield smoothness, according to TAPPI T 538, of less than 100. The film in this invention can have a puncture propagation tear resistance, in accordance with ASTM D2582, greater than 500 g/mil.Type: GrantFiled: November 15, 2019Date of Patent: July 4, 2023Assignee: MuCell Extrusion, LLCInventors: Mehdi Saniei, James K. Sakorafos, Nicholas R. Torraco, Mark E. Lindenfelzer
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Publication number: 20230130761Abstract: A multilayer foam film comprising high density polyethylene for direct and non-direct food contact and aseptic packaging application is disclosed. In an embodiment, the film has a bulk density of less than 0.962 gr/cm3 wherein more than 50% of the cells in the foam layer are closed cells. In an embodiment, the foam films are thick (generally more than 8 mils thick) and have a bending stiffness value of more than 18, in Taber stiffness unit configuration according to TAPPI/ANSI T 489 om-15, and the ratio of the mass per unit area (the mass of a unit area of the film in gram per meter-squared (gr/m2)) over the stiffness value in Taber unit configuration is equal to or less than 13. In an embodiment, the film has a very smooth surface with a smoothness value of less than 25 in Sheffiled smoothness unit configuration according to TAPPI T 538. The described foam film can have a water vapor transmission rate value of less than 1 gr/m2/24 hr, according to ASTM E398-13.Type: ApplicationFiled: July 1, 2022Publication date: April 27, 2023Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, Eric V. Fredrickson
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Publication number: 20220242088Abstract: A method of making multilayer foam sheet from recycled polyester sources, which may be used for packaging applications. The method comprises a co-extrusion system comprising at least two single screw extruders. A low I.V. polyester feedstock comprising up to 100% of the polyester flakes from recycled sources with an intrinsic viscosity (I.V.) of lower than 0.8 dL/g as measured by ASTM D4603-18 is directly being fed into the extruders. Supercritical physical blowing agent is introduced into the melted polyester feedstock in at least one of the extruders wherein the processing temperature is in the range of 15% lower than the melting temperature and 15% higher than the melting temperature. Then, coextruding the feedstock from the extruders of the co-extrusion system through a flat sheet die to make a multilayer foam sheet, wherein at least one layer is a foam layer comprising low I.V. polyester.Type: ApplicationFiled: January 13, 2022Publication date: August 4, 2022Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, James K. Sakorafos
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Patent number: 11376823Abstract: A multilayer foam film comprising high density polyethylene for direct and non-direct food contact and aseptic packaging application is disclosed. In an embodiment, the film has a bulk density of less than 0.962 gr/cm3 wherein more than 50% of the cells in the foam layer are closed cells. In an embodiment, the foam films are thick (generally more than 8 mils thick) and have a bending stiffness value of more than 18, in Taber stiffness unit configuration according to TAPPI/ANSI T 489 om-15, and the ratio of the mass per unit area (the mass of a unit area of the film in gram per meter-squared (gr/m2)) over the stiffness value in Taber unit configuration is equal to or less than 13. In an embodiment, the film has a very smooth surface with a smoothness value of less than 25 in Sheffiled smoothness unit configuration according to TAPPI T 538. The described foam film can have a water vapor transmission rate value of less than 1 gr/m2/24 hr, according to ASTM E398-13.Type: GrantFiled: May 15, 2020Date of Patent: July 5, 2022Assignee: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, Eric V. Fredrickson
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Publication number: 20220152996Abstract: A multilayer foam film suitable for direct and non-direct food contact and aseptic packaging application is disclosed.Type: ApplicationFiled: November 18, 2021Publication date: May 19, 2022Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, Eric V. Fredrickson
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Publication number: 20220152995Abstract: A recyclable multilayer synthetic foam container that does not wick, for direct and non-direct food contact and aseptic packaging application is disclosed. In one aspect, a container comprises a pre-creased and/or folded multilayer synthetic foam sheet comprising at least one foam layer, that can be hermetically sealed along the edges, wherein the synthetic board sheet is a recyclable material that does not wick. In another aspect, the product has a bending stiffness value greater than 17 in Taber stiffness unit configuration according to TAPPI/ANSI T 489 om-15. In some embodiments, the product can have an oxygen transmission rate of less than 20 cc/m2/24 hr, according to ASTM D3985. In some embodiments, the product can have a water vapor transmission rate of less than 10 gr/m2/24 hr, according to ASTM E398-13.Type: ApplicationFiled: September 24, 2021Publication date: May 19, 2022Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, David Stirling, John F. Ryan
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Patent number: 11292163Abstract: Methods of forming polymeric foams are provided. The methods may involve co-extruding a foam layer along with one or more skin layers. In some embodiments, the skin layer(s) may be removed (e.g., in a peeling operation); while, in other embodiments, the skin layer(s) may form part of the final article. The methods are particularly well suited for producing polymeric foams from polymeric materials that are considered to be difficult to foam by those of skill in the art.Type: GrantFiled: March 15, 2013Date of Patent: April 5, 2022Assignee: MuCell Extrusion, LLCInventors: Samuel Edward Dix, Jere R. Anderson, Mark E. Lindenfelzer
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Publication number: 20210339923Abstract: Plastic containers and methods of forming the same are described. In some cases, the container is a recyclable multilayer extrusion blow-molded plastic container comprising high-density polyethylene with an enhanced oxygen barrier properties. The containers may be used for direct and non-direct food contact packaging, liquid packaging, as well as in aseptic packaging applications. The containers can have an oxygen transmission rate, according to ASTM D3985, of less than 10 cc/m2.day. The containers can be recycled in the HDPE recycling stream.Type: ApplicationFiled: April 16, 2021Publication date: November 4, 2021Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, Eric V. Fredrickson
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Publication number: 20210101372Abstract: A multilayer foam film with an enhanced perceived surface whiteness comprising for light-blocking, signage, and general packaging application is disclosed. In an embodiment, the film has a bulk density of less than 0.962 gr/cm3 wherein more than 50% of the cells in the foam layer are closed cells. In an embodiment, the multilayer foam film has a thickness greater than 1 mil and one of the solid skin layers contains white pigment. In another embodiment the white skin layer has a skin whiteness value of greater than 80 according to ASTM E313-73, and a skin layer tint value of less than 1 according to ASTM E313-73, and The lightness value (L*) of the white skin layer of greater than 90 in CIE L*a*b* dimension according to ASTM E308. In an embodiment, the film has a very smooth surface with a smoothness value of less than 25 in Sheffield smoothness unit configuration according to TAPPI T 538.Type: ApplicationFiled: October 7, 2020Publication date: April 8, 2021Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, Nicholas R. Torraco, James K. Sakorafos
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Publication number: 20200361185Abstract: A multilayer foam film comprising high density polyethylene for direct and non-direct food contact and aseptic packaging application is disclosed. In an embodiment, the film has a bulk density of less than 0.962 gr/cm3 wherein more than 50% of the cells in the foam layer are closed cells. In an embodiment, the foam films are thick (generally more than 8 mils thick) and have a bending stiffness value of more than 18, in Taber stiffness unit configuration according to TAPPI/ANSI T 489 om-15, and the ratio of the mass per unit area (the mass of a unit area of the film in gram per meter-squared (gr/m2)) over the stiffness value in Taber unit configuration is equal to or less than 13. In an embodiment, the film has a very smooth surface with a smoothness value of less than 25 in Sheffiled smoothness unit configuration according to TAPPI T 538. The described foam film can have a water vapor transmission rate value of less than 1 gr/m2/24 hr, according to ASTM E398-13.Type: ApplicationFiled: May 15, 2020Publication date: November 19, 2020Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, Eric V. Fredrickson
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Publication number: 20200361184Abstract: A multilayer foam film comprising high density polyethylene for direct and non-direct food contact and general packaging application is disclosed. In an embodiment, the film has a bulk density of less than 0.962 gr/cm3 wherein more than 50% of the cells in the foam layer are closed cells. In an embodiment, the foam films are thick (generally more than 8 mils thick) and have a bending stiffness value of more than 18, in Taber stiffness unit configuration according to TAPPI/ANSI T 489 om-15, and the ratio of the mass per unit area (the mass of a unit area of the film in gram per meter-squared (gr/m2)) over the stiffness value in Taber unit configuration is equal to or less than 13. In an embodiment, the film has a very smooth surface with a smoothness value of less than 25 in Sheffiled smoothness unit configuration according to TAPPI T 538. The foam film of the present invention has a water vapor transmission rate value of less than 0.05 gr/100 in2/24 hr, according to ASTM E398-13.Type: ApplicationFiled: May 17, 2019Publication date: November 19, 2020Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, Eric V. Fredrickson
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Publication number: 20200198308Abstract: This invention relates to an anisotropic multilayer film and the process of making a multilayer film, wherein a supercritical blowing agent is introduced to at least one layer, wherein at least one layer comprises 10 to 100 percent by weight LLDPE with a melt index of 0.2 to 2 g/10 min. The film in this invention can have a surface with an average Sheffield smoothness, according to TAPPI T 538, of less than 100. The film in this invention can have a puncture propagation tear resistance, in accordance with ASTM D2582, greater than 500 g/mil.Type: ApplicationFiled: November 15, 2019Publication date: June 25, 2020Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, James K. Sakorafos, Nicholas R. Torraco, Mark E. Lindenfelzer
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Publication number: 20200171786Abstract: The present disclosure relates to a multilayer sheet comprising TPE (e.g., TPO) with at least one solid layer, and at least one foamed layer on the opposite side or one side of the solid layer. The web can be up to 3.2 meters wide with a gauge variation of less than 1%, and the average variation of the weight per unit area (gr/m2) of the sheet across the web is less than 2%. The foam sheet of the present invention can have an overal thickness of less than 50 mils with a bending stiffness value of less than 5, in Taber stiffness unit configuration according to TAPPI/ANSI T 489 om-15.Type: ApplicationFiled: November 1, 2019Publication date: June 4, 2020Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, Mark E. Lindenfelzer, James K. Sakorafos, Nicholas R. Torraco
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Publication number: 20200156293Abstract: An anisotropic multilayer film comprising one or more foam layers is described herein.Type: ApplicationFiled: November 16, 2018Publication date: May 21, 2020Applicant: MuCell Extrusion, LLCInventors: Mehdi Saniei, James K. Sakoratos, Nicholas R. Torraco, Mark E. Lindenfelzer