Patents Examined by A. Fortuna
  • Composition of matter in a pre-refiner blend zone
    Patent number: 11530516
    Abstract: 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: Grant
    Filed: July 26, 2019
    Date of Patent: December 20, 2022
    Assignee: Eastman Chemical Company
    Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
  • Cellulose and cellulose ester film
    Patent number: 11525215
    Abstract: A film is made from a wet laid product containing cellulose fibers and cellulose ester fibers and a plasticizer. The film can be made by heat pressing the wet laid sheet to form a film having a continuous phase of cellulose ester resin and a discontinuous phase of cellulose fibers.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: December 13, 2022
    Assignee: Eastman Chemical Company
    Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker
  • Composition of matter in stock preparation zone of wet laid process
    Patent number: 11519132
    Abstract: A composition obtained by combining virgin cellulose fibers, cellulose ester (CE) staple fibers having a denier per filament (DPF) of less than 3, and water, and water. The CE staple fibers can also have a short cut length of less than 6 mm and can be crimped. The compositions, when co-refined, are useful to make wet laid products such as paper, cardboard, and filters that have improved water drainage, air permeability, tensile strength, bulk, burst strength, or stiffness, or a combination of these properties.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: December 6, 2022
    Assignee: Eastman Chemical Company
    Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Mounir Izallalen, Koushik Ghosh
  • Composition of matter feed to a head box
    Patent number: 11512433
    Abstract: A wet laid process includes a method for making paper in which a composition containing co-refined cellulose fibers and cellulose ester fibers made into a thick stock composition in a machine chest, the thick stock is fed to a cleaning/screening zone through a device that regulates the flow rate of thick stock, the consistency of the thick stock fed to the screening/cleaning zone is reduced to form a thin stock composition; the thin stock composition is subjected to a process for cleaning the thin stock and feeding the cleaned thin stock through screens to form a cleaned and screened thin stock composition, and the cleaned and screened thin stock composition is fed to a headbox.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: November 29, 2022
    Assignee: Eastman Chemical Company
    Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
  • Compositions and methods for providing increased strength in ceiling, flooring, and building products
    Patent number: 11512020
    Abstract: A composition for addition to a ceiling tile, flooring product, or other construction product may include microfibrillated cellulose and optionally an inorganic particulate material. The ceiling tile, flooring product, or other construction product may further include perlite, mineral wool, wood pulp, starch and other additives, where the wood pulp and other inorganic particulate materials are bonded to the microfibrillated cellulose. Methods of manufacturing the compound are also disclosed.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: November 29, 2022
    Assignee: FiberLean Technologies Limited
    Inventors: David Skuse, Jonathan Stuart Phipps, Sean Ireland, Yun Jin
  • Paper press process with high hydrolic pressure
    Patent number: 11492756
    Abstract: 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. Specifically, a wet laid process comprising a process that allows the quantity of water removed from a web passed through press rolls is increased relative to a web made from a 100% cellulose comparative composition.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: November 8, 2022
    Assignee: Eastman Chemical Company
    Inventors: Kenny Randolph Parker, Charles Stuart Everett, Melvin Glenn Mitchell, Koushik Ghosh, Mounir Izallalen
  • Composition of matter in a post-refiner blend zone
    Patent number: 11492757
    Abstract: After cellulose fibers and cellulose ester fibers are co-refined, they are fed to a blend tank continuously feeds a wet laid process. The composition in the blend tank includes co-refined cellulose fibers and cellulose ester fibers and one or more additives, and the cellulose ester fibers have a denier per filament (DPF) of less than 3, a cut length of less than 6 mm, crimped, or non-round with a DPF of less than 3.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: November 8, 2022
    Assignee: Eastman Chemical Company
    Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
  • Waste recycle composition
    Patent number: 11492755
    Abstract: A recycled cellulose pulp composition is provided which comprises recycled cellulosic fibers and cellulose ester staple fibers. The recycled cellulose pulp containing co-refined re-cycled cellulose fibers and cellulose ester staple fibers can be added to a hydropulper and fed back through a refiner to make wet laid products.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: November 8, 2022
    Assignee: Eastman Chemical Company
    Inventors: Charles Stuart Everett, Kenny Randolph Parker, Melvin Glenn Mitchell
  • High consistency re-pulping method, apparatus and absorbent products incorporating recycled fiber
    Patent number: 11486089
    Abstract: A method of pulping wastepaper includes providing a pulping vessel with a rotor and at least one flow sensor adapted to measure slurry flow within the pulping vessel. The pulping vessel is charged with wastepaper and water to form a slurry, the amounts of wastepaper and water being present such that the slurry has consistency in the range of from 10% to 30%. The wastepaper charge in the pulping vessel is pulped at a pre-selected power level while monitoring poloidal slurry flow in the pulping vessel; and from time-to-time, water may be added to the pulping vessel when the poloidal flow falls below a predetermined lower threshold flow value in order to reduce viscosity and thereby restore poloidal flow within the pulping vessel. Doppler velocimetry is a preferred method of monitoring pulp flow. In a particularly preferred construction the rotor has a variable power drive.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: November 1, 2022
    Assignee: GPCP IP Holdings LLC
    Inventor: Jeffrey A. Lee
  • Treated pulp and methods of making and using same
    Patent number: 11473242
    Abstract: Treated pulp sheets comprising cellulose pulp fibers treated with a densifying agent and having a relatively low moisture content. In certain embodiments, the treated pulp sheets are used to produce fiberized pulp having low knot content, while maintaining density and softness properties usually associated with similarly treated pulp that is fiberized at higher moisture content. Methods of making fiberized pulp from the treated pulp sheets, as well as products comprising the treated pulp sheets or fiberized pulp from the treated pulp sheets, are also provided.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: October 18, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Andre Stephan Hajnal
  • Multi-ply tissue product produced from a single ply tissue web
    Patent number: 11466409
    Abstract: In general, the present invention is directed to a process for producing multi-ply tissue products from a single ply tissue web and the resulting multi-ply products, which have good softness and strength characteristics. The process of the present invention generally involves producing a first single ply tissue web and then splitting the web into two separate single ply tissue webs that can be converted into a multi-ply web. In certain preferred embodiments the single ply web may be manufactured such that when it is split into two separate webs the two webs are substantially identical.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: October 11, 2022
    Assignee: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventor: Maurizio Tirimacco
  • Lid, method of producing lid, and molds for forming molded pulp
    Patent number: 11466410
    Abstract: A method of producing a lid including a top plate and a side wall extending downward from a periphery of the top plate, using molds, the molds including a papermaking mold and a drying mold. The top plate is provided with an abutting part abutting against an edge of an opening of a container, while an undercut part to be fitted to a lower part of the edge is formed on the side wall so as to be located below the abutting part. The papermaking mold is provided with suction holes at a level corresponding to a level of the undercut part formed on an inner surface of the side wall. The side wall is suctioned using the suction holes when a molded article is at least in one of several states to form the undercut part in a convex shape on the inner surface of the side wall.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: October 11, 2022
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Michihisa Yamazaki, Tomoko Mita, Ryoichi Takita
  • Highly absorbent articles
    Patent number: 11466408
    Abstract: Absorbent wet laid products are made containing cellulose fibers and cellulose ester staple fibers that are co-refined to obtain products and articles that have improved water absorbency and tensile strength or burst strength or both. The absorbent wet laid products can now be made with a synthetic fiber in the wet laid operation since cellulose ester can be subjected to a refining operation.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: October 11, 2022
    Assignee: Eastman Chemical Company
    Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
  • Paper-specific moisture control in a traveling paper web
    Patent number: 11459704
    Abstract: A network-based system and method for providing desired moisture set point values for individual papers lines based on the physical properties of each liner and the atmospheric conditions associated with a corrugator is disclosed. The desired moisture set point values are based on the hygroexpansivity of each individual paper liner. Once the moisture set point value has been determined, a conditioning apparatus adjusts a moisture value for each liner in order to tune the post-warp characteristics of the final corrugated product.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: October 4, 2022
    Assignee: INTPRO, LLC
    Inventor: Herbert B. Kohler
  • Pulp molding negative angle container and its processing method
    Patent number: 11459705
    Abstract: The present invention discloses a pulp molding negative angle container comprising a conical pulp container which is open on the upper end, wherein: the inner wall of the open end of the pulp container has a separation space which is inclined downwards and set outwards; a protruding shoulder is provided on the outer wall of the open end of the pulp container, wherein the outer diameter of the protruding shoulder is larger than the inner diameter of the hole on the open end; wherein when two pulp containers are nested over each other, the protruding shoulder is placed on the upper hole of the open end and a separation gap is formed between the separation space on one pulp container and the outer wall on the other pulp container. The process comprises: A. injection; B. demolding. The present invention can greatly reduce the difficulty of separation.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: October 4, 2022
    Assignee: BE GREEN PACKAGING CO., LTD.
    Inventors: Shu Chen, Ji Tong, Zhijia Liu
  • Process for surface sizing using a jet cooked dispersion comprising microfibrillated cellulose, starch and pigment and/or filler
    Patent number: 11453978
    Abstract: The present invention relates to a process for improved surface sizing in the manufacture of paper or board products. According to the present invention, an aqueous dispersion of microfibrillated cellulose (MFC), starch and pigments or fillers is treated by jet cooking and then used for surface sizing in a process for manufacturing a paper or board product.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: September 27, 2022
    Assignee: Stora Enso OYJ
    Inventors: Erik Mansson, Philip Hakansson
  • Paper towel rolls
    Patent number: 11447916
    Abstract: Paper towel rolls that exhibit novel combinations of physical properties, such as Basis Weight, Roll Density, and Roll Diameter, such that the paper towel rolls meet consumers' needs, and method for making such novel paper towel rolls and marketing such novel paper towel rolls are provided.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: September 20, 2022
    Assignee: The Procter & Gamble Company
    Inventors: Kevin Mitchell, Robert Edward Reinerman, Douglas Jay Barkey, Mark Alan Green, Paul Dennis Trokhan, J. Michael Bills, Jeffrey Glen Sheehan, Paul Thomas Weisman
  • Method to produce a paperboard, a paperboard and a corrugated board
    Patent number: 11441272
    Abstract: The present invention relates to a method for producing a paperboard comprising the steps of; providing a furnish comprising cellulosic fibers, applying the furnish on at least one wire to form a web, dewatering the web on said at least one wire by subjecting the web to a pressure above 150 kPa without the use of a press roll nip and thereafter pressing the dewatered web to form a paperboard. The invention also relates to a paperboard and a corrugated board.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: September 13, 2022
    Assignee: Stora Enso OYJ
    Inventor: Tuomo Sippus
  • Refining to a desirable freeness
    Patent number: 11441267
    Abstract: 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: Grant
    Filed: July 26, 2019
    Date of Patent: September 13, 2022
    Assignee: Eastman Chemical Company
    Inventors: Melvin Glenn Mitchell, Charles Stuart Everett, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
  • Paper products having increased bending stiffness and cross-direction strength and methods for making the same
    Patent number: 11441268
    Abstract: A process for making a paper product comprising: providing a forming fabric; causing the forming fabric to rotate such that an upper surface of the forming fabric moves in a machine direction; providing a multi-layer headbox comprising first and second inlet headers and a slice outlet; providing a first aqueous slurry of first fibers to the first inlet header and a second aqueous slurry of second fibers to the second inlet header; combining streams of the first and second aqueous slurries to define a jet exiting the slice outlet; emitting the jet onto the upper surface of the forming fabric to form a web; causing the forming fabric to oscillate in a direction transverse to the machine direction, whereby at least a significant number of the first fibers are caused to align in a direction that deviates from the machine direction; and forming the paper product from the web.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: September 13, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: John Mullaney Meazle