公开(公告)号：US20220396684A1

公开(公告)日：2022-12-15

申请号：US17762228

申请日：2020-10-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Fuming B. Li ,  Nathan E. Schultz ,  John M. Brandner ,  John M. Sebastian

IPC: C08K5/3447 ,  C07D235/18 ,  C07D401/04 ,  C07D417/04 ,  C08K5/47 ,  H01B1/20

Abstract: Charged polymeric webs, such as electret webs, include a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additive is a substituted-benzimidazole compound. 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：US20220372666A1

公开(公告)日：2022-11-24

申请号：US17621994

申请日：2020-06-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Nathan E. Schultz ,  Daniel C. Duan ,  Seth M. Kirk ,  Michael R. Berrigan ,  Zackary J. Becker ,  Fuming B. Li ,  John M. Sebastian

IPC: D01F8/06 ,  D01F8/14 ,  D01F8/10 ,  D01F1/10 ,  B01D39/16 ,  D01D5/34 ,  D04H1/4382 ,  D04H3/007 ,  D04H3/011 ,  D04H3/018 ,  D04H1/435 ,  D04H1/4291 ,  A62B23/02

Abstract: A thermoplastic core-sheath fiber comprises: a polymer fiber core having a coextensive sheath layer disposed thereon, and an electrostatic charge enhancing additive. The sheath layer may comprise poly(4-methyl-1-pentene) and the fiber core and the sheath layer have different compositions. At least one of the fiber core or the sheath layer comprises an electret charge. A nonwoven fibrous web comprising the core-sheath fibers and a respirator including the nonwoven fibrous web are also disclosed.

公开(公告)号：US10919867B2

公开(公告)日：2021-02-16

申请号：US15741647

申请日：2016-06-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: C07D249/20 ,  C07D403/12 ,  C07B41/04 ,  C07B43/04 ,  C07B45/04 ,  C07B45/06 ,  C07B51/00

Abstract: Benzotriazole phenols with substituents either ortho to the phenol hydroxyl group and/or para to the phenol hydroxyl group can be prepared from the unsubstituted benzotriazole phenol by coupling reactions. The ortho substituent group can be a simple alkoxy or amino group, or the ortho substituent group can be a linking group, linking the benzotriazole phenol to another benzotriazole phenol group.

公开(公告)号：US10556857B2

公开(公告)日：2020-02-11

申请号：US15737473

申请日：2016-06-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Nathan E. Schultz ,  Liming Song ,  Fuming B. Li

IPC: C07C243/00 ,  C07C243/28 ,  C08K5/25

Abstract: Presently describes are hydrazide (e.g. dihydrazide) compounds suitable for use as a nucleating agent for a polylactic acid (“PLA”) polymer. Also described are articles such as a film or fiber comprising the semicrystalline polylactic acid polymer and a nucleating agent.

公开(公告)号：US20180186728A1

公开(公告)日：2018-07-05

申请号：US15737473

申请日：2016-06-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Nathan E. Schultz ,  Liming Song ,  Fuming B. Li

IPC: C07C243/28 ,  C08K5/25

CPC classification number: C07C243/28 ,  C08K5/0083 ,  C08K5/25 ,  C08L67/04

Abstract: Presently describes are hydrazide (e.g. dihydrazide) compounds suitable for use as a nucleating agent for a polylactic acid (“PLA”) polymer. Also described are articles such as a film or fiber comprising the semicrystalline polylactic acid polymer and a nucleating agent.

公开(公告)号：US20160067717A1

公开(公告)日：2016-03-10

申请号：US14784634

申请日：2014-04-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Nathan E. Schultz ,  Fuming B. Li ,  John M. Sebastian

IPC: B03C3/28 ,  B01D39/16 ,  H01B1/12

CPC classification number: B03C3/28 ,  B01D39/1607 ,  B01D39/1623 ,  B01D2239/0435 ,  H01B1/12

Abstract: Electret webs include a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additive is an arylamino-substituted benzoic acid or an arylamino-substituted benzoic acid salt. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media.

Abstract translation: 驻极体网包括热塑性树脂和电荷增强添加剂。 电荷增强添加剂是芳基氨基取代的苯甲酸或芳基氨基取代的苯甲酸盐。 驻极体网可以是非织造纤维网或膜。 驻极体网适用于过滤介质。

公开(公告)号：US20230067250A1

公开(公告)日：2023-03-02

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 ,  D04H1/4382 ,  D04H3/14 ,  D04H3/011

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：US20230006085A1

公开(公告)日：2023-01-05

申请号：US17780342

申请日：2020-12-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Vivian W. Jones ,  Gary E. Gaides ,  Stephen A. Johnson ,  Nathaniel I. Lehn ,  Jiaying Ma ,  Adam T. Ringberg ,  Tianyu Wu ,  Fuming B. Li

IPC: H01L31/054 ,  G02B5/02

Abstract: A light redirecting film includes a first layer disposed on a second layer with structured major surfaces of the first and second layers facing each other. An optically reflective layer or a metal layer is disposed between the first and second layers. The first layer can be a hot melt adhesive layer and the second layer can be a polymeric layer. The first and second layers can be unitary layers. The first layer can be a first polymeric layer having a softening temperature T1 and the second layer can be a second polymeric layer having a softening temperature T2 greater than T1. Heating and/or applying pressure to the film changes an optical characteristic of the film by less than about 5%.

公开(公告)号：US20220410045A1

公开(公告)日：2022-12-29

申请号：US17777551

申请日：2020-11-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Fuming B. Li ,  Anthony F. Schultz ,  Duane D. Fansler ,  John M. Brandner ,  Nathan E. Schultz ,  John M. Sebastian

IPC: B01D39/16

Abstract: Charged polymeric webs, such as electret webs, include a thermoplastic resin and a charge-enhancing additive. The additives are a mercapto-benzothiazole salts or mercapto-benzoxazole 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：US20220401862A1

公开(公告)日：2022-12-22

申请号：US17776868

申请日：2020-12-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Fuming B. Li ,  John M. Brandner ,  Nathan E. Schultz ,  John M. Sebastian

IPC: B01D39/16 ,  D06M10/02 ,  D04H3/007

Abstract: Charged polymeric webs, such as electret webs, include a thermoplastic resin and a charge-enhancing additive. The additives are substituted benzothiazole compounds or substituted benzoxazole compounds. The substituent groups may be hydroxyl, mercapto, or aromatic groups. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media.