公开(公告)号：US12102947B1

公开(公告)日：2024-10-01

申请号：US18665929

申请日：2024-05-16

申请人： IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY

发明人： Tarek Ahmed Yousef ,  Osamah Abdulrahman Aldaghri ,  Saad Shaaban

IPC分类号： B01D39/18 ,  B01D39/20 ,  B01D46/00 ,  B01D46/54 ,  B01J20/20 ,  B01J20/28 ,  B01J20/30 ,  D21C3/02 ,  D21C9/00 ,  D21C9/02 ,  D21H11/12 ,  D21H11/18 ,  D21H17/00 ,  D21H17/53 ,  D21H21/22 ,  D21H27/08 ,  D21C11/00 ,  D21C11/12 ,  D21H17/63

CPC分类号： B01D39/18 ,  B01D39/2062 ,  B01D46/0001 ,  B01D46/0036 ,  B01D46/543 ,  B01J20/20 ,  B01J20/28028 ,  B01J20/2803 ,  B01J20/3007 ,  B01J20/3042 ,  B01J20/3071 ,  B01J20/3078 ,  B01J20/3085 ,  D21C3/02 ,  D21C9/001 ,  D21C9/002 ,  D21C9/02 ,  D21H11/12 ,  D21H11/18 ,  D21H17/53 ,  D21H17/74 ,  D21H21/22 ,  D21H27/08 ,  B01D2239/025 ,  B01D2239/0266 ,  B01D2239/0283 ,  B01D2239/0407 ,  B01D2239/086 ,  B01D2239/10 ,  B01D2239/1291 ,  D21C11/0007 ,  D21C11/125 ,  D21H17/63

摘要： A biodegradable filter for the removal of various pollutants, contaminants, or harmful substances from the surrounding air, and a method of fabrication. The filter includes 30% by weight of cellulose nanofibers, 30% by weight of activated carbon, and 20% by weight of polyethylene glycol. The cellulose nanofibers and activated carbon are isolated from date palm biomass, making the filter cost-effective and environmentally friendly.

公开(公告)号：US11959226B2

公开(公告)日：2024-04-16

申请号：US17121862

申请日：2020-12-15

申请人： First Quality Tissue, LLC

发明人： Byrd Tyler Miller, IV ,  Justin S. Pence ,  James E. Sealey

IPC分类号： D21H27/00 ,  D21H11/00 ,  D21H11/12 ,  D21H17/28 ,  D21H17/37 ,  D21H21/14 ,  D21H21/18 ,  D21H21/20 ,  D21H21/22 ,  D21H21/24 ,  D21H21/28 ,  D21H27/30 ,  D21H27/40

CPC分类号： D21H27/005 ,  D21H5/14 ,  D21H11/12 ,  D21H17/28 ,  D21H17/375 ,  D21H21/14 ,  D21H21/18 ,  D21H21/20 ,  D21H21/22 ,  D21H21/24 ,  D21H21/28 ,  D21H27/002 ,  D21H27/30 ,  D21H27/40

摘要： A structured rolled sanitary tissue product having at least two plies, wherein the structured rolled sanitary tissue product has a crumple resistance of less than 30 grams force, a caliper of at least 450 microns/ply, and a bulk softness (TS7) of 10 or less.

公开(公告)号：US20240084513A1

公开(公告)日：2024-03-14

申请号：US18260991

申请日：2022-03-28

申请人： DAIO PAPER CORPORATION

发明人： Sachiko TAKAHASHI

IPC分类号： D21H27/00 ,  D21F5/18 ,  D21G3/04 ,  D21H21/22 ,  D21H23/04 ,  D21H27/02

CPC分类号： D21H27/005 ,  D21F5/181 ,  D21G3/04 ,  D21H21/22 ,  D21H23/04 ,  D21H27/02

摘要： Tissue paper containing a softener, and having a dry tensile strength of 200 cN/25 mm or greater and 400 cN/25 mm or less in a longitudinal direction, a rate of elongation of 5% or higher and 25% or lower in the longitudinal direction, and a proportional limit tensile stress of 160 cN or greater and 250 cN or less in the longitudinal direction is provided.

公开(公告)号：US20230383470A1

公开(公告)日：2023-11-30

申请号：US18248764

申请日：2021-11-26

申请人： DAIO PAPER CORPORATION

发明人： Sachiko TAKAHASHI

IPC分类号： D21H27/00 ,  D21H27/02 ,  D21H21/22 ,  D21H17/00 ,  D21H23/04 ,  D21F5/18 ,  D21G3/04

CPC分类号： D21H27/005 ,  D21H27/02 ,  D21H21/22 ,  D21H17/00 ,  D21H23/04 ,  D21F5/181 ,  D21G3/04

摘要： Tissue paper containing a softener and having a dry tensile strength of 250 cN/25 mm or greater and 400 cN/25 mm or less in a longitudinal direction, a tensile elasticity of 7 N/mm2 or higher and 15 N/mm2 or lower, and a hand-feel value HF of 80 or higher, where the hand-feel value is measured using a softness analyzer (TSA), is provided.

公开(公告)号：US11807992B2

公开(公告)日：2023-11-07

申请号：US17121879

申请日：2020-12-15

申请人： First Quality Tissue, LLC

发明人： Byrd Tyler Miller, IV ,  Justin S. Pence ,  James E. Sealey

IPC分类号： D21H27/00 ,  D21H11/00 ,  D21H27/40 ,  D21H21/24 ,  D21H21/20 ,  D21H21/18 ,  D21H21/14 ,  D21H17/28 ,  D21H17/37 ,  D21H27/30 ,  D21H21/22 ,  D21H21/28 ,  D21H11/12

CPC分类号： D21H27/005 ,  D21H5/14 ,  D21H11/12 ,  D21H17/28 ,  D21H17/375 ,  D21H21/14 ,  D21H21/18 ,  D21H21/20 ,  D21H21/22 ,  D21H21/24 ,  D21H21/28 ,  D21H27/002 ,  D21H27/30 ,  D21H27/40

摘要： A structured rolled sanitary tissue product having at least two plies, wherein the structured rolled sanitary tissue product has a crumple resistance of less than 30 grams force, a caliper of at least 450 microns/ply, and a bulk softness (TS7) of 10 or less.

公开(公告)号：US20230212341A1

公开(公告)日：2023-07-06

申请号：US18174747

申请日：2023-02-27

申请人： INTERNATIONAL PAPER COMPANY

发明人： Karen Brogan ,  Charles E. Miller ,  Angel Stoyanov ,  Torsten Lindner ,  Maike Siemons

IPC分类号： C08F251/02 ,  B01J20/24 ,  D21H17/37 ,  C08B15/00 ,  D21C9/00 ,  D01F11/02 ,  B01J20/26 ,  B01J20/28 ,  C08B3/08 ,  D21H11/20 ,  D21H21/22 ,  D21H27/00 ,  D21H11/16 ,  D01F2/00

CPC分类号： C08F251/02 ,  B01J20/24 ,  B01J20/265 ,  B01J20/267 ,  B01J20/28023 ,  C08B3/08 ,  C08B15/005 ,  D01F11/02 ,  D21C9/005 ,  D21H11/16 ,  D21H11/20 ,  D21H17/37 ,  D21H21/22 ,  D21H27/002 ,  D01F2/00

摘要： Grafted, crosslinked cellulosic materials include cellulose fibers and polymer chains composed of at least one monoethylenically unsaturated acid group-containing monomer (such as acrylic acid) grafted thereto, in which one or more of said cellulose fibers and said polymer chains are crosslinked (such as by intra-fiber chain-to-chain crosslinks). Some of such materials are characterized by a wet bulk of about 10.0-17.0 cm3/g, an IPRP value of about 1000 to 7700 cm2/MPa·sec, and/or a MAP value of about 7.0 to 38 cm H2O. Methods for producing such materials may include grafting polymer chains from a cellulosic substrate, followed by treating the grafted material with a crosslinking agent adapted to effect crosslinking of one or more of the cellulosic substrate or the polymer chains. Example crosslinking mechanisms include esterfication reactions, ionic reactions, and radical reactions, and example crosslinking agents include pentaerythritol, homopolymers of the graft species monomer, and hyperbranched polymers.

公开(公告)号：US11686046B2

公开(公告)日：2023-06-27

申请号：US17297244

申请日：2019-11-22

申请人： Daio Paper Corporation

发明人： Shuta Yasui ,  Minoru Iwasaki

IPC分类号： D21H11/04 ,  D21H27/00 ,  D21H17/06 ,  D21H17/14 ,  D21H21/22

CPC分类号： D21H11/04 ,  D21H17/06 ,  D21H17/14 ,  D21H21/22 ,  D21H27/002

摘要： Provided is a moisturized tissue excellent in strength and snot wiping property. In the moisturized tissue paper, a paper thickness is 220 to 330 μm, a basis weight is 15 to 18 g/m2 per ply, a proportion of NBKP in the pulp combination is more than 70 mass %, a chemical solution content is 26 to 32 mass %, an arithmetic mean curvature at a peak point of an outer surface in an unpressurized state (Spc (1)) is 4.0 to 4.8 (1/mm), and a developed area ratio at an interface on the outer surface (Sdr) is 0.020 to 0.030 (−).

公开(公告)号：US11492760B2

公开(公告)日：2022-11-08

申请号：US16747039

申请日：2020-01-20

申请人： Kemira Oyj

发明人： Chen Lu ,  Clayton Campbell ,  Jenna Sue Rabideau

IPC分类号： D21H21/20 ,  D21H17/37 ,  D21H21/18 ,  D21H23/04 ,  D21H23/24 ,  D21H21/10 ,  D21H21/24 ,  D21H27/00 ,  D21H23/22 ,  D21H21/22 ,  D21H17/65 ,  D21H17/00 ,  D21H17/07 ,  D21H17/15

摘要： A softener composition for use in the manufacture of paper includes a softener and an acidic material, wherein the softener composition has a relative acidity (RA) value of more than 0.05.

公开(公告)号：US11408127B2

公开(公告)日：2022-08-09

申请号：US16878819

申请日：2020-05-20

申请人： GPCP IP Holdings LLC

发明人： Yu Chen ,  Brian S. Hammes

IPC分类号： D21H21/24 ,  D21H21/20 ,  D21H17/07 ,  C07D233/16 ,  D21H17/20 ,  D21H27/00 ,  D21H17/14 ,  D21H17/37 ,  D21H21/18 ,  D21H21/22 ,  D21H17/06 ,  D21H17/00 ,  D21H23/06

摘要： Zwitterionic surfactant compounds and their use in connection with absorbent paper manufacture in debonder and softener formulations. An exemplary surfactant is an imidazolinium compound of formula: wherein X is SO3, R1 is a hydrocarbyl spacer group having a chain length of from 2-6 carbon atoms, R2 is a hydrocarbyl group having from 8 to 22 carbon atoms; and R3 is an alkenylamidoalkyl moiety having from 8 to 30 carbon atoms.

公开(公告)号：US11248346B2

公开(公告)日：2022-02-15

申请号：US17025028

申请日：2020-09-18

申请人： GPCP IP Holdings LLC

发明人： Jeffrey A. Lee

IPC分类号： D21H27/00 ,  D21H21/22 ,  D21F11/14 ,  D21F11/00 ,  D21H11/04 ,  D21H11/06 ,  D21H11/08 ,  D21H11/14

摘要： Tissue papers and methods of making are disclosed herein. In one aspect, a tissue paper is substantially free of a chemical debonder and has a geometric mean tensile (GMT) in a range between about 500 and about 5,000 g/3 inches (g/3 in.) and a caliper in a range between about 50 and about 350 mils/8 sheets.