Patents by Inventor Glenn Mitchell
Glenn Mitchell 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: 11401659Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits.Type: GrantFiled: July 26, 2019Date of Patent: August 2, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Mounir Izallalen, Koushik Ghosh
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Patent number: 11396726Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many the desired benefits. The present invention also relates to a filter media for air filtration comprising cellulose fiber and a staple fiber; wherein said staple filter comprises cellulose ester; wherein said air permeability is higher for a given mean pore size as compared to a filtration that comprises 100% cellulose.Type: GrantFiled: July 26, 2019Date of Patent: July 26, 2022Assignee: Eastman Chemical CompanyInventors: Kenny Randolph Parker, Charles Stuart Everett, Melvin Glenn Mitchell, Mounir Izallalen, Koushik Ghosh
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Patent number: 11390996Abstract: Embodiments of the present invention relate to elongated tubular members that include at least one layer comprising a cellulose ester. In some cases, the cellulose ester may be in the form of staple fibers. The layer may be formed via a wet-laid fiber web that may also include cellulose fibers. The elongated tubular members may be suitable for use with food and/or beverage items as, for example, drinking straws or other similar items.Type: GrantFiled: July 26, 2019Date of Patent: July 19, 2022Assignee: Eastman Chemical CompanyInventors: Kenny Randolph Parker, Charles Stuart Everett, Melvin Glenn Mitchell, Koushik Ghosh, Mounir Izallalen
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Patent number: 11390991Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many the desired benefits. This invention also relates to a process to produce a wet laid article in a paper mill, said process comprising adding cellulose ester staple fiber to a hydropulper zone, and/or to a refining zone, and/or after the refining zone wherein said paper mill process is not substantially modified to allow for said adding of said cellulose ester.Type: GrantFiled: July 26, 2019Date of Patent: July 19, 2022Assignee: Eastman Chemical CompanyInventors: Kenny Randolph Parker, Charles Stuart Everett, Melvin Glenn Mitchell, Koushik Ghosh, Mounir Izallalen
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Patent number: 11339537Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits. This invention also relates to a biodegradable bag.Type: GrantFiled: July 26, 2019Date of Patent: May 24, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
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Patent number: 11332885Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits.Type: GrantFiled: July 26, 2019Date of Patent: May 17, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
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Patent number: 11332888Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to composition, process, wet laid product, or articles exhibiting any one of many desired benefits. The invention also relates to a composition comprising cellulose fiber and a staple fiber exhibiting improved texturing.Type: GrantFiled: July 26, 2019Date of Patent: May 17, 2022Assignee: Eastman Chemical CompanyInventors: Kenny Randolph Parker, Charles Stuart Everett, Melvin Glenn Mitchell, Mounir Izallalen, Koushik Ghosh
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Patent number: 11313081Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits. The present invention relates a filtration article comprising a wet-laid composition comprising cellulose fibers and staple fibers.Type: GrantFiled: July 26, 2019Date of Patent: April 26, 2022Assignee: Eastman Chemical CompanyInventors: Melvin Glenn Mitchell, Kenny Randolph Parker, Charles Stuart Everett, Mounir Izallalen, Koushik Ghosh
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Patent number: 11306433Abstract: A composition and process for making the composition by co-refining: fibrillated virgin cellulose fibers, waste/recycle cellulose fibers, or both; co-refined cellulose ester (CE) staple fibers having a denier per filament (DPF) of less than 3 and the weight percent of CE staple fibers is less than 30 wt. %, based on the weight of CE staple fibers and said cellulose fibers; and water. The composition can be co-refined to obtain lower Canadian standard freeness yet improved drainage and wet laid products having good tensile strength, air permeability, stiffness, burst strength, and bulk.Type: GrantFiled: July 26, 2019Date of Patent: April 19, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
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Patent number: 11299854Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many the desired benefits. The Present invention also relates to a wet laid product having higher air permeability the same or lower pore size relative to a 100% cellulose comparative composition.Type: GrantFiled: July 26, 2019Date of Patent: April 12, 2022Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
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Publication number: 20220106738Abstract: A bale of sheets made of waste/recycle cellulose fibers and cellulose ester (CE) staple fibers can be fed to a hydropulper. The CE staple fibers have: i. a denier per filament (DPF) of less than 3, or ii. a cut length of less than 6 mm, or iii. crimping, or iv. a combination of any two or more of (i)-(iii). The bales can be fed and dropped in as entire bales to a hydropulper, or a blend tank directly or indirectly in fluid communication with a hydropulper, using the same feed system employed for feeding cellulose to the hydopulper and avoiding having to defiberize by pulling or drawing fibers from a box container into a hydropulper. The waste/recycle cellulose fibers and CE staple fibers can be co-refined prior to making the bale of sheets.Type: ApplicationFiled: June 3, 2021Publication date: April 7, 2022Applicant: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker
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Patent number: 11292909Abstract: The present invention provides an extrudable polymer composition comprising a base polymer and a bicomponent fiber comprising a low melt temperature component selected from the group consisting of high density polyethylene (HDPE) and polylactic acid (PLA) and a high melt temperature component selected from the group consisting of PET, 100% PDLA, 100% PLLA or a 50/50 blend of 100% PDLA and 100% PLLA, and nylon wherein the base polymer has a melt temperature of about 20° C. to 40° C. lower than this high melt temperature component of the bicomponent fiber.Type: GrantFiled: May 11, 2016Date of Patent: April 5, 2022Assignee: Earth Renewable TechnologiesInventors: Thomas Jason Wolfe, Melvin Glenn Mitchell, James Etson Brandenburg
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Patent number: 11286619Abstract: A bale of sheets made of virgin cellulose fibers and cellulose ester (CE) staple fibers can be fed to a hydropulper. The CE staple fibers have: i. a denier per filament (DPF) of less than 3, or ii. a cut length of less than 6 mm, or iii. crimping, or iv. a combination of any two or more of (i)-(iii). The bales can be fed and dropped in as entire bales to a hydropulper, or a blend tank directly or indirectly in fluid communication with a hydropulper, using the same feed system employed for feeding cellulose to the hydopulper and avoiding having to defiberize by pulling or drawing fibers from a box container into a hydropulper.Type: GrantFiled: July 26, 2019Date of Patent: March 29, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker
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Publication number: 20220042246Abstract: The present invention relates to ultrasonic welding of compositions, and wet laid articles made from the compositions, containing cellulose fibers and cellulose ester fibers, as well as wet laid processes using the compositions. More specifically, the present invention relates to a wet laid nonwoven comprising cellulose and cellulose ester fibers. The wet laid nonwoven is bonded to itself and/or to other substrates, and this bonding is accomplished at least in part by ultrasonic welding.Type: ApplicationFiled: August 16, 2021Publication date: February 10, 2022Applicant: Eastman Chemical CompanyInventors: Charles Stuart Everett, Kenny Randolph Parker, Jeremy Kenneth Steach, Melvin Glenn Mitchell
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Patent number: 11230811Abstract: A bale of sheets made of waste/recycle cellulose fibers and cellulose ester (CE) staple fibers can be fed to a hydropulper. The CE staple fibers have: i. a denier per filament (DPF) of less than 3, or ii. a cut length of less than 6 mm, or iii. crimping, or iv. a combination of any two or more of (i)-(iii). The bales can be fed and dropped in as entire bales to a hydropulper, or a blend tank directly or indirectly in fluid communication with a hydropulper, using the same feed system employed for feeding cellulose to the hydopulper and avoiding having to defiberize by pulling or drawing fibers from a box container into a hydropulper. The waste/recycle cellulose fibers and CE staple fibers can be co-refined prior to making the bale of sheets.Type: GrantFiled: July 26, 2019Date of Patent: January 25, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker
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Patent number: 11118313Abstract: The present invention relates to ultrasonic welding of compositions, and wet laid articles made from the compositions, containing cellulose fibers and cellulose ester fibers, as well as wet laid processes using the compositions. More specifically, the present invention relates to a wet laid nonwoven comprising cellulose and cellulose ester fibers. The wet laid nonwoven is bonded to itself and/or to other substrates, and this bonding is accomplished at least in part by ultrasonic welding.Type: GrantFiled: March 10, 2020Date of Patent: September 14, 2021Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Kenny Randolph Parker, Jeremy Kenneth Steach, Melvin Glenn Mitchell
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Publication number: 20200299900Abstract: The present invention relates to ultrasonic welding of compositions, and wet laid articles made from the compositions, containing cellulose fibers and cellulose ester fibers, as well as wet laid processes using the compositions. More specifically, the present invention relates to a wet laid nonwoven comprising cellulose and cellulose ester fibers. The wet laid nonwoven is bonded to itself and/or to other substrates, and this bonding is accomplished at least in part by ultrasonic welding.Type: ApplicationFiled: March 10, 2020Publication date: September 24, 2020Applicant: Eastman Chemical CompanyInventors: Charles Stuart Everett, Kenny Randolph Parker, Jeremy Kenneth Steach, Melvin Glenn Mitchell
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Publication number: 20200240045Abstract: The biocomponent fiber functions as a carrier or vehicle for delivering additives to a polymer composition. The bicomponent fiber may be “splittable segmented pie” or “island-in-the-sea” construction with the sea being the low melt temperature component and the island being the high melt temperature component. The low melt temperature polymer may be selected from the group consisting of low density polyethylene (LDPE), high density polyethylene (HDPE), polylactic acid (PLA), polyhydroxyalkenoate (PHA), polypropylene (PP), polystyrene (PS), polyvinylidene fluoride, polybutylene succinate (PBS), low melt temperature polyethylene terephthalate, polytrimethylene terephthalate (PTT) and low melt temperature nylons.Type: ApplicationFiled: April 10, 2020Publication date: July 30, 2020Inventors: Emanuel Lopes Martins, Carmen E. Finnessy, Melvin Glenn Mitchell
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Publication number: 20200063370Abstract: A process is provided for applying sizing to a wet laid fibrous sheet that comprises providing an aqueous slurry that comprises cellulose fibers and cellulose ester staple fibers; forming the wet laid fibrous sheet from the slurry; and applying an aqueous sizing composition that comprises one or more sizing agents to the wet laid fibrous sheet. In embodiments, the cellulose ester staple fibers are present in an amount sufficient to permit the sheet to have a higher sizing composition uptake and to impart higher sizing properties to the sheet, compared to a sheet formed from a 100% cellulose fiber slurry, when processed under similar conditions.Type: ApplicationFiled: July 26, 2019Publication date: February 27, 2020Applicant: Eastman Chemical CompanyInventors: Melvin Glenn Mitchell, Charles Stuart Everett, Kenny Randolph Parker
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Publication number: 20200063357Abstract: A composition is contained a blend zone prior to refining containing non-fibrillated virgin cellulose fibers, waste/recycle cellulose fibers or both; cellulose ester fibers, water, and one or more additives comprising fillers, internal sizing agents, biocides, process anti-foaming agents, colorants, optical modifiers, or a combination thereof. An in-line mixer can be used for adding the additives, and the consistency of the composition is lowered relative to a feed of material from a hydropulper.Type: ApplicationFiled: July 26, 2019Publication date: February 27, 2020Applicant: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen