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公开(公告)号：US11982031B2
公开(公告)日：2024-05-14
申请号：US17794281
申请日：2021-01-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Fuming B. Li , John M. Brandner , Nathan E. Schultz , John M. Sebastian
CPC classification number: D04H1/435 , B01D39/16 , B01D39/1692 , D01F1/10 , D04H1/4382 , D04H3/011 , D04H3/14 , B01D2239/0435
Abstract: Charged polymeric webs, such as electret webs, include a thermoplastic resin and a charge-enhancing additive. The additives are substituted heterocyclic thiols. The heterocyclic thiol has 2 nitrogen groups and a third group that may be an NH, N—NH2, O, or S group. The substituent group is an aromatic or heterocyclic aromatic group. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media.
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公开(公告)号：US20230285884A1
公开(公告)日：2023-09-14
申请号：US18019935
申请日：2021-08-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Fuming B. Li , John M. Brandner , Richard C. Webb , Siwei Leng , Nathan E. Schultz
IPC: B01D39/16 , D06M10/02 , D06M11/05 , D04H1/56 , D04H1/4291 , D01F1/10 , D04H3/16 , D04H3/007 , D01F6/46
CPC classification number: B01D39/1623 , D06M10/025 , D06M11/05 , D04H1/56 , D04H1/4291 , D01F1/10 , D04H3/16 , D04H3/007 , D01F6/46 , D06M2101/20
Abstract: Electret webs include a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additive is a substituted- or unsubstituted benzoate salt. The substituted benzoate salts are substituted by a hydroxyl group. The substituted-benzoate salt may have a divalent metal countercation.
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公开(公告)号：US20230095033A1
公开(公告)日：2023-03-30
申请号：US17795022
申请日：2021-01-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Fuming B. Li , Duane D. Fansler , Anthony F. Schultz , John M. Brandner , Nathan E. Schultz , John M. Sebastian
IPC: C08K5/46 , C07D249/12 , C07D271/113 , C07D285/125 , C08K5/378 , B01D39/16 , D01F1/09 , D04H1/4291 , D01F6/06 , D06M10/02 , D01D5/098 , D04H3/14 , D04H3/007 , D04H1/56
Abstract: Charged polymeric webs, such as electret webs, include a thermoplastic resin and a charge-enhancing additive. The additives are substituted heterocyclic thiolate salts. The heterocyclic thiolate salt has 2 nitrogen groups and a third group that may be an NH, N—NH2, O, or S group. The substituent group is an aromatic or heterocyclic aromatic group. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media.
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公开(公告)号：US11351653B2
公开(公告)日：2022-06-07
申请号：US16336157
申请日：2017-09-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Aaron K. Nienaber , Grayce T. Huberty , Thomas J. Nelson , Ronald D. Apple , Louis S. Moren , Robinette S. Alkhas , Nathan E. Schultz , Tien T. Wu , Gerry A. Hoffdahl
Abstract: Abrasive articles including a nonwoven fibrous substrate having a plurality of fibers, and a multiplicity of shaped abrasive particles, each shaped abrasive particle adhered to a corresponding fiber, each shaped abrasive particle having a length (L) and a width (W) determined in a direction substantially orthogonal to the length, the ratio of the length to the width defining an aspect ratio (L/W) of at least 1.1, each abrasive particle is oriented relative to its corresponding fiber, and more than 50% of the abrasive particles are oriented with respect to their corresponding fiber such that the abrasive particle length extends generally outwardly away from a surface of the corresponding fiber as determined visually using the Orientation Test. The shaped abrasive particles may have the geometric shape of a polygonal prism having two faces and at least three sides thereon. Methods of making the abrasive articles are also disclosed.
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公开(公告)号：US11078419B2
公开(公告)日：2021-08-03
申请号：US16780323
申请日：2020-02-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nathan E. Schultz , Fuming B. Li , Kelly A. Volp , Mark McCormick
IPC: C09K15/32 , C08K5/00 , C09K15/24 , C07D249/20 , C08K5/138 , C08K5/3475 , C08L23/12 , G01R33/46
Abstract: A class of antioxidant compositions include benzotriazole phenolate salts with substituents either ortho to the phenol hydroxide group and/or para to the phenol hydroxide group can be prepared from substituted benzotriazole phenols. The ortho substituent group can be a simple hydrocarbon, alkoxy or amino group, or the ortho substituent group can be a linking group, linking the benzotriazole phenolate to another benzotriazole phenolate group.
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Patent Agency Ranking
公开(公告)号：US10724171B2
公开(公告)日：2020-07-28
申请号：US15741370
申请日：2016-06-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nathan E. Schultz , Fuming B. Li , Kelly A. Volp , John M. Sebastian
IPC: B01D39/16 , D06M10/02 , D04H13/00 , D04H3/16 , D04H1/42 , D06M10/08 , D06M13/352 , D06M101/20 , D06M101/22 , D06M101/32
Abstract: Electret webs include a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additive is a substituted benzotriazole phenolate salt or a combination of substituted benzotriazole phenolate salts. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media.
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公开(公告)号：US20180282519A1
公开(公告)日：2018-10-04
申请号：US15741387
申请日：2016-06-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nathan E. Schultz , Fuming B. Li , Kelly A. Volp , Mark McCormick
IPC: C08K5/3475 , C08F10/06 , C08K5/544 , C08K5/378 , C08K5/41
Abstract: Polymeric compositions include at least one polymer that is free of ester linkages and an additive that is a benzotriazole phenolate salt with substituents either ortho to the phenol hydroxide group and/or para to the phenol hydroxide group. The substituted benzotriazole phenolate salts can be prepared from substituted benzotriazole phenols. The ortho substituent group can be a simple hydrocarbon, alkoxy, or amino group, or the ortho substituent group can be a linking group, linking the benzotriazole phenolate to another benzotriazole phenolate group.
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公开(公告)号：US20230233968A1
公开(公告)日：2023-07-27
申请号：US18011959
申请日：2021-06-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： HIMANSHU JASUJA , Nathan E. Schultz , Seth M. Kirk , Bryan L. Gerhardt , Daniel C. Duan , Michael R. Berrigan
CPC classification number: B01D39/163 , B01D46/522 , B01D46/0001 , B01D2275/10 , B01D2239/0407 , B01D2239/0435 , B01D2239/0622 , B01D2239/0627 , B01D2239/0636 , B01D2239/0668 , B01D2239/1291 , B01D2239/1233 , B01D2279/50
Abstract: A pleated multilayer air filter assembly including a primary filtration layer and a prefilter layer that are bonded to each other and are co-pleated with each other. The primary filtration layer includes meltblown electret fibers. The prefilter layer includes meltspun, spunbonded electret fibers that comprise a radially outer surface comprising polymethylpentene. The ratio of Effective Fiber Diameter of the fibers of the primary filtration layer to Effective Fiber Diameter of the fibers of the primary filtration layer is at least 1.5.
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公开(公告)号：US20220380574A1
公开(公告)日：2022-12-01
申请号：US17762782
申请日：2020-10-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Fuming B. Li , Nathan E. Schultz , John M. Brandner
IPC: C08K5/3475 , C08K5/3477 , C08K5/47 , C08J5/18 , B01D39/16 , B03C3/28 , D06M10/02 , D04H3/007 , D04H3/16
Abstract: Charged polymeric webs, such as electret webs, include a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additive is a dual-function charge-enhancing additive that enhances the charge of the electret and also has anti-microbial properties. The additives are substituted-benzimidazole or substituted-benzothiazole compounds. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media.
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公开(公告)号：US11492495B2
公开(公告)日：2022-11-08
申请号：US16980145
申请日：2019-03-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nathan E. Schultz , Li Yao , Tien T. Wu , Gerry A. Hoffdahl , Jimmie R. Baran, Jr.
Abstract: A modified aluminum nitride particle comprises an aluminum nitride core and a shell surrounding the aluminum nitride core. The shell comprises a crosslinked organic polymer. Methods of making the modified aluminum nitride particle by admicellar polymerization are also disclosed.
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