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.

公开(公告)号：US11053373B2

公开(公告)日：2021-07-06

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 ,  C08K5/3472 ,  C08K5/544 ,  C08F10/06 ,  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.

公开(公告)号：US20180195000A1

公开(公告)日：2018-07-12

申请号：US15741680

申请日：2016-06-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Nathan E. Schultz ,  Fuming B. Li ,  Kelly A. Volp ,  Mark McCormick

IPC: C09K15/32 ,  C08K5/00 ,  C07D249/20 ,  C08K5/138 ,  C08K5/3475

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.

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

IPC: D04H1/435 ,  B01D39/16 ,  D01F1/10 ,  D04H1/4382 ,  D04H3/011 ,  D04H3/14

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.

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.

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.

公开(公告)号：US11452891B2

公开(公告)日：2022-09-27

申请号：US16282774

申请日：2017-08-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John M. Sebastian ,  Christopher A. Hurley ,  Kenneth J. Krepel ,  Pierre Legare ,  Fuming B. Li ,  Paul A. Martinson ,  Bong Y. Yeom

IPC: A62B23/02 ,  B01D46/00 ,  B01D46/10 ,  B01D46/52

Abstract: A pleated filter element comprising a pleated filter media comprising a plurality of oppositely-facing pleats with a pleat direction and with a plurality of upstream and downstream pleat tips and pleat valleys, wherein the pleated filter media comprises two corrugated edges and two noncorrugated edges. The first (second) corrugated edge of the pleated filter media comprises an edge dam of hardened adhesive that occupies the upstream and downstream pleat valleys at a location laterally inwardly proximate the first (second) corrugated edge and that extends along an entire longitudinal extent of the pleated filter media. The pleated filter media is a multilayer media comprising an organic polymeric nonwoven web, that exhibits a Percent Penetration of less than 5, laminated with a fiberglass prefilter layer that is disposed upstream of the primary filtration layer and that exhibits a Percent Penetration of greater than about 70.

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.

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.

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.