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公开(公告)号：US20240299878A1
公开(公告)日：2024-09-12
申请号：US18670321
申请日：2024-05-21
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Justin Tyler Vaughn , Benjamin James Sundell
IPC: B01D53/22 , B01D53/52 , B01D67/00 , B01D69/08 , B01D69/12 , B01D69/14 , B01D71/16 , B01D71/78 , C08K5/5419 , C08L1/12
CPC classification number: B01D53/228 , B01D67/0009 , B01D67/00113 , B01D67/0013 , B01D67/002 , B01D67/006 , B01D67/00931 , B01D69/08 , B01D69/12 , B01D69/14 , B01D69/148 , B01D71/16 , B01D71/78 , C08K5/5419 , C08L1/12 , B01D53/52 , B01D2257/304 , B01D2257/50 , B01D2323/22 , B01D2323/30 , B01D2323/38 , B01D2323/46 , B01D2325/0283 , B01D2325/20 , B01D2325/24 , C08L2203/16
Abstract: Described in the present application are methods of producing silane-crosslinked polymer membranes at moderate temperatures using acid catalysts that, in certain embodiments, result in membranes with unexpectedly high permeabilities and selectivities. In certain embodiments, grafting and crosslinking of the silanes occur by immersing a preformed membrane in a solution comprising a silane and an acid catalyst. Alternatively, in certain embodiments, grafting of silanes to a polymer occurs in the presence of acid catalyst in solution and subsequent casting and drying produces crosslinked membranes. In certain embodiments, an acid catalyst is a weak acid catalyst. Also described in the present application are asymmetric crosslinked polymer membranes with porous layers. In certain embodiments, crosslinked cellulose acetate membranes have permeability up to an order of magnitude greater than the permeability of unmodified cellulose acetate membranes. The membranes have porous layers with a high porosity due to their processing in moderate conditions.
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公开(公告)号：US20240247133A1
公开(公告)日：2024-07-25
申请号：US18628853
申请日：2024-04-08
Applicant: Daicel Corporation
Inventor： Masaaki KUSUMOTO , Takafumi KAWASAKI , Akihiro HIGUCHI
CPC classification number: C08L1/12 , C08J5/18 , C08K3/22 , C08K3/26 , C08K3/346 , C08K5/11 , C09D101/02 , C08J2301/12 , C08K2003/222 , C08K2003/265
Abstract: A cellulose acetate resin composition may include a cellulose acetate (A) having a total degree of acetyl substitution of 2.60 or less; a filler (B); and a plasticizer (C). The filler (B) may be selected from the group consisting of (b1) a predetermined inorganic compound, (b2) a predetermined metal salt, (b3) cellulose or hemicellulose, and (b4) wood flour. The plasticizer (C) may be selected from (c1) a glycerin ester-based plasticizer, (c2) an ether-based plasticizer, and (c3) a glycol ester-based plasticizer. A content of the component (A) may be from 45 to 90 mass %. A total content of the component (B) may be from 5 to 50 mass %. A total content of the component (C) may be from 5 to 35 mass %.
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公开(公告)号：US12012503B2
公开(公告)日：2024-06-18
申请号：US17117939
申请日：2020-12-10
Applicant: Ticona LLC
Inventor： Christopher McGrady , Rongfu Li , Michael Combs , Xiaowei Zhang , Suresh Subramonian
IPC: C08L1/12
CPC classification number: C08L1/12 , C08L2207/53
Abstract: A polymer composition containing cellulose acetate in combination with one or more impact modifiers is described. The polymer composition can also contain a plasticizer and a bio-based polymer in addition to the cellulose acetate. The polymer composition is formulated so as to have properties similar to petroleum-based polymers for producing, for example, single-use biodegradable articles.
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公开(公告)号：US20240191063A1
公开(公告)日：2024-06-13
申请号：US18404977
申请日：2024-01-05
Applicant: DAICEL CORPORATION
Inventor： Hiroyuki MATSUMURA , Kyokutou GA , Masaaki KUSUMOTO
CPC classification number: C08L1/12 , C08J5/18 , C08K3/22 , C08K2003/222 , C08L2201/06
Abstract: An object of the present invention is to provide a cellulose acetate with excellent biodegradability in seawater.
A cellulose acetate having a total degree of acetyl substitution of not greater than 2.7, a ratio τ of a sum of a degree of acetyl substitution at the 2-position and a degree of acetyl substitution at the 3-position to a degree of acetyl substitution at the 6-position in the total degree of acetyl substitution of not less than 2.0, and a sulfate component amount of greater than 20 ppm and not greater than 400 ppm.
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公开(公告)号：US20240191062A1
公开(公告)日：2024-06-13
申请号：US18326070
申请日：2023-05-31
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Kenji YAO
CPC classification number: C08L1/12 , C08K3/22 , C08K5/05 , C08K5/10 , C08L1/14 , C08L51/003 , C08L67/04 , C08K2003/2237 , C08K2003/2296 , C08L2203/30 , C08L2205/03 , C08L2207/53
Abstract: A resin composition includes cellulose acylate A, polylactic acid B, and at least one compound C selected from the group including an ester compound and a cardanol compound. The content of the polylactic acid B relative to the content of the cellulose acylate A exceeds 0.5 and is 0.9 or less; and the content of the compound C relative to the content of the cellulose acylate A exceeds 0.15 and is 0.3 or less.
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公开(公告)号：US11999857B2
公开(公告)日：2024-06-04
申请号：US16618496
申请日：2018-06-01
Applicant: W. R. Grace & Co.-Conn.
Inventor： Feng Gu
IPC: C09C1/30 , C01B33/14 , C08K9/08 , C08L1/12 , C08L9/00 , C08L23/06 , C08L23/12 , C08L33/26 , C08L39/06 , C08L91/00 , C09D7/42
CPC classification number: C09C1/3072 , C01B33/14 , C08K9/08 , C08L1/12 , C08L9/00 , C08L23/06 , C08L23/12 , C08L33/26 , C08L39/06 , C08L91/00 , C09C1/3018 , C09C1/3027 , C09D7/42 , C01P2004/61 , C01P2006/12 , C01P2006/14 , C01P2006/62
Abstract: Improved silica based matting agents are disclosed. The matting agents are useful in waterborne coatings composition to provide exceptional properties to a wood based substrate. Films resulting on the coated substrate unexpectedly provide improved chemical resistance, thermal stress resistance, weather resistance, and/or film clarity to the surface of a wood substrate. Methods of making and using the matting agents are also disclosed.
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公开(公告)号：US11827772B2
公开(公告)日：2023-11-28
申请号：US17118168
申请日：2020-12-10
Applicant: Ticona LLC
Inventor： Christopher McGrady , Rongfu Li , Michael Combs , Xiaowei Zhang , Suresh Subramonian
Abstract: A polymer composition containing cellulose acetate in combination with one or more bloom resistant or bio-based plasticizers and optionally one or more bio-based polymers is described. The polymer composition is formulated so as to have properties similar to petroleum-based polymers for producing, for example, single-use biodegradable articles.
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公开(公告)号：US11827722B2
公开(公告)日：2023-11-28
申请号：US17356085
申请日：2021-06-23
Applicant: North Carolina State University
Inventor： Anurodh Tripathi , Saad A. Khan , Orlando J. Rojas , Gregory N. Parsons , Jeremy Kenneth Steach , Jos Simon de Wit , S. M. Bedarul Islam , Jacob Donald Goodrich
CPC classification number: C08B15/005 , C08J9/28 , C08J9/36 , C08L1/12 , C08L1/14 , C08J2201/026 , C08J2201/0484 , C08J2205/022 , C08J2205/024 , C08J2205/026 , C08J2207/00 , C08J2301/12
Abstract: Mechanically strong, biodegradable and reusable aerogels are disclosed, which can be made with a cross-linked cellulose ester, and which exhibit a low density and high porosity. The aerogels disclosed herein may be used as sorbent materials and can be modified with a hydrophobic and/or oleophilic agent.
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公开(公告)号：US11802166B2
公开(公告)日：2023-10-31
申请号：US17434230
申请日：2020-02-26
Inventor： Yasumitsu Uraki , Haruo Konno , Shu Shimamoto
Abstract: An object of the present disclosure is to provide a cellulose acetate film having excellent bending properties and high transparency. The subject cellulose acetate film contains cellulose acetate having a cellulose triacetate I crystal structure, the cellulose acetate film having a light transmittance of 70% or higher at 660 nm.
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公开(公告)号：US20230312884A1
公开(公告)日：2023-10-05
申请号：US18119612
申请日：2023-03-09
Applicant: Celanese International Corporation
Inventor： Xiaowei Zhang , Chongwen Huang , Christopher McGrady
CPC classification number: C08L1/12 , C08J5/18 , C08K3/105 , C08K5/0016 , C08J2301/12 , C08L2201/10 , C08L2203/16
Abstract: A polymer composition is disclosed formed from a polysaccharide ester polymer, a plasticizer, and at least one odor control agent. The odor control agent is designed to control odors and/or acid emissions during melt processing of the composition without significantly interfering with the optical characteristics of the composition.
