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公开(公告)号：US20240191430A1
公开(公告)日：2024-06-13
申请号：US18354588
申请日：2023-07-18
申请人： CLEANFIBER INC.
摘要： Methods for making fire retardant material including fire retardant cellulosic insulation are described. The methods include arrangements for partitioning fibers derived from fiber feedstocks and adding at least a portion of fibers of one or more feedstocks and a fire retardancy chemical compound to a mixer prior to fiber drying. The fibers may be disentangled and/or partitioned prior to mixing with the fire retardancy chemical compound. The fibers may be partially dewatered prior to the drying or other steps of the methods. The feedstock may include old newsprint (ONP), old corrugated containers (OCC), and/or other cellulose-based materials. The method further includes retaining the fibers feedstock and the chemical compound together for enough time to ensure adherence and impregnation of enough of the chemical to and in the fibers after the drying process. Fibers may be partitioned and disentangled prior to, during, and/or after treatment with the fire retardancy compound. The fire retardant cellulose insulation may be a standalone product or may be a component of a finished insulation end product.
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2.发明公开公开(公告)号：US20240131489A1
公开(公告)日：2024-04-25
申请号：US17769388
申请日：2016-06-12
申请人： Circ, LLC
发明人： Sandeep Kumar , Peter Majeranowski , Igor Kostenyuk , Iulian Bobe , Florin Barla
IPC分类号： B01J19/00 , B01D11/02 , C10G1/04 , C10G1/06 , C12M1/00 , C12P7/10 , C12P7/649 , D21B1/14 , D21C1/02 , D21C3/02 , D21C3/22 , D21C5/02 , D21C7/00 , D21C11/00 , D21H11/02
CPC分类号： B01J19/0053 , B01D11/0207 , C10G1/04 , C10G1/065 , C12M21/12 , C12M43/02 , C12P7/10 , C12P7/649 , D21B1/14 , D21C1/02 , D21C3/02 , D21C3/22 , D21C5/02 , D21C7/00 , D21C11/0007 , D21H11/02 , B01J2219/00051 , B01J2219/00162 , B01J2219/00353 , B01J2219/00891 , C10G2300/1014 , Y02E50/10 , Y02P30/20 , Y02W30/64
摘要： The presently disclosed subject matter relates to an industrial system for processing various plant materials to produce marketable materials. Particularly, the system integrates subcritical water extraction technology and includes a pre-processing module and a two-stage extractor (processing module) with constant control of temperature, pressure, and/or residence time. In some embodiments, the final product of the disclosed system can include feedstock constituents for biofuel production (sugars and/or oil), biochar, raw materials for various industries (such as pulp for manufacturing paper or cellulose for use in various industries). The disclosed system can be modular or non-modular, stationary or mobile, and can include prefabricated elements with programmed automatic or manual operation so that it can be easily moved and/or assembled on site.
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公开(公告)号：US20240011221A9
公开(公告)日：2024-01-11
申请号：US17451661
申请日：2021-10-21
申请人： ANDRITZ INC.
发明人： Luc Gingras
IPC分类号： D21C5/02
CPC分类号： D21C5/025
摘要： A plate segment includes a substrate having a front side and a back side, wherein the back side is configured to be mounted to a support disc of a disperser; rows of teeth protruding from the front side of the substrate, wherein each of the rows are arranged along an arc extending from one side of the plate segment to an opposite side of the plate segment. In at least one of the rows of teeth, adjacent teeth are joined by a bridge spanning a gap between the adjacent teeth. The bridge is elevated above the front side of the substrate such that the bridge is separated from the front side by an open space in the gap.
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公开(公告)号：US20240003084A1
公开(公告)日：2024-01-04
申请号：US18460092
申请日：2023-09-01
发明人： Parker Dale , Parker David Dale
摘要： The present specification discloses papermaking additive compositions, articles of manufacture, containers or kits comprising such compositions, and methods and uses to increase separation of cellulose fibers from a pulp, to remove one or more impurities and/or one or more contaminates from a pulp and/or a paper material and to remove an ink from a pulp and/or a paper material.
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5.发明授权公开(公告)号：US11851816B2
公开(公告)日：2023-12-26
申请号：US17451661
申请日：2021-10-21
申请人： ANDRITZ INC.
发明人： Luc Gingras
IPC分类号： D21C5/02
CPC分类号： D21C5/025
摘要： A plate segment includes a substrate having a front side and a back side, wherein the back side is configured to be mounted to a support disc of a disperser; rows of teeth protruding from the front side of the substrate, wherein each of the rows are arranged along an arc extending from one side of the plate segment to an opposite side of the plate segment. In at least one of the rows of teeth, adjacent teeth are joined by a bridge spanning a gap between the adjacent teeth. The bridge is elevated above the front side of the substrate such that the bridge is separated from the front side by an open space in the gap.
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6.发明授权公开(公告)号：US11771604B2
公开(公告)日：2023-10-03
申请号：US16625927
申请日：2018-05-10
申请人： Unicharm Corporation
IPC分类号： A61F13/53 , A61F13/49 , D21C5/02 , B09B3/00 , B09B5/00 , A61F13/511 , A61F13/539
CPC分类号： A61F13/53 , A61F13/49 , D21C5/022 , A61F13/511 , A61F2013/530007 , A61F2013/530481 , A61F2013/53908 , B09B3/00 , B09B5/00
摘要： The purpose of the present invention is to provide a method for producing recycled pulp fibers such that articles using the recycled pulp fibers can easily achieve a uniform whiteness and users are not prone to feel psychological resistance to articles using the recycled pulp fibers. This method is described below. The method is characterized by involving: a step for supplying, from a mixed solution supply port (32) to a treatment tank (31), a mixed solution (51) which contains superabsorbent polymers and pulp fibers derived from multiple types of used sanitary products; a step for supplying an ozone-containing gas (53) from an ozone-containing gas supply port (43) to a treatment solution (52) inside of the treatment tank (31); a step in which, by raising the ozone-containing gas (53) while lowering the superabsorbent polymers and pulp fibers in the treatment tank (31), the ozone-containing gas (53) is brought into contact with the superabsorbent polymers and the pulp fibers, and the pulp fibers are bleached to form recycled pulp fibers; and a step for discharging the treatment solution (52) from a treatment solution discharge port (33), wherein the recycled pulp fibers have a 0-10 ΔYI with respect to a standard white plate.
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公开(公告)号：US11692309B2
公开(公告)日：2023-07-04
申请号：US16775419
申请日：2020-01-29
摘要： A system and method of forming a molded pulp product that involves separately collecting, from a paper-making process, waste water containing short fibers at a first fiber consistency, waste water as dilution water containing fibers at a second fiber consistency that is lower than the first fiber consistency, and water containing long fibers, the long fibers having a length that is greater than a length of the short fibers, blending the waste water containing short fibers and the water containing long fibers to obtain a pulp slurry, and molding the pulp slurry into a molded pulp product at a pulp molding machine. In an embodiment, filtrate removed during the molding of the molded pulp product has a BOD measurement that is 95% less than a BOD measurement of the pulp slurry, where the BOD measurements are obtained using the EPA 405.1, SM5210B Test Method.
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公开(公告)号：US20230167603A1
公开(公告)日：2023-06-01
申请号：US17998088
申请日：2021-04-15
申请人： NOVATRUST SA
发明人： Simone PRIANTE
摘要： A method for the production of paper products, such as paper and cardboard, by recycling cellulose-based raw materials containing starch. The method includes the steps of pulping in water cellulose-based raw materials containing starch, particularly recycled paper products, obtaining a pulped mass; adding to the pulped mass of the previous step under agitation a mineral acid in a quantity that is suitable to obtain a pH of the pulped mass not lower than 4, and obtaining a pulped mass treated with acid. The method further includes the step of subjecting the pulped mass treated with acid obtained in the second step, optionally treated with other chemical additives, in succession, to filtration, pressing and drying, and obtaining a paper product. Paper products obtainable by this method are also related.
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9.发明公开公开(公告)号：US20230160142A1
公开(公告)日：2023-05-25
申请号：US18153410
申请日：2023-01-12
申请人： Unicharm Corporation
CPC分类号： D21C5/022 , A61L2/183 , A61L11/00 , B29B17/02 , D21H11/14 , B09B3/80 , B29B2017/0293 , B29L2031/4878
摘要： The purpose of the present invention is to provide a method which is for producing pulp fibers for cellulose nanofiberization from pulp fibers of used sanitary products, and which can produce pulp fibers for cellulose nanofiberization that have low lignin content and a low distribution thereof and that have excellent cellulose nanofiberization properties. This method is described below. The method is characterized by involving: a step for supplying, from a mixed solution supply port (32) to a treatment tank (31), a mixed solution (51) which contains superabsorbent polymers and pulp fibers derived from used sanitary products; a step for supplying an ozone-containing gas (53) from an ozone-containing gas supply port (43) to a treatment solution (52) inside of the treatment tank (31); a step in which, by raising the ozone-containing gas (53) while lowering the superabsorbent polymers and pulp fibers in the treatment tank (31), the ozone-containing gas (53) is brought into contact with the superabsorbent polymers and the pulp fibers, and pulp fibers for cellulose nanofiberization are formed from the pulp fibers; and a step for discharging the treatment solution (52) from a treatment solution discharge port (33), wherein the pulp fibers for cellulose nanofiberization have a lignin content of less than or equal to 0.1 mass %.
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公开(公告)号：US11560672B2
公开(公告)日：2023-01-24
申请号：US17042506
申请日：2019-02-21
摘要： The present invention aims to develop a technique for efficiently preparing deinked pulp from prints made with UV-curable inks. According to the processes for preparing deinked pulp of the present invention, high quality deinked pulp can be obtained by performing the steps of: disintegrating printed waste paper containing UV prints in water to give a waste paper slurry; and applying a mechanical process to the waste paper slurry using a rotary disintegrator.
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