公开(公告)号：US20200347200A1

公开(公告)日：2020-11-05

申请号：US16760468

申请日：2018-11-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Derek J. Dehn ,  Clinton P. Waller, Jr. ,  Jeanne M. Bruss ,  Bharat R. Acharya ,  Brandon A. Bartling ,  Michael S. Graff ,  Noah O. Shanti ,  Fabian Stolzenburg ,  Satinder K. Nayar

IPC: C08J9/28 ,  C08J9/00 ,  C08K3/22

Abstract: Method of making a polymer matrix composite comprising a porous polymeric network structure; and a plurality of particles distributed within the polymeric network structure, the method comprising: combining a thermoplastic polymer, a solvent that the thermoplastic polymer is soluble in, and a plurality of particles to provide a slurry; forming the slurry in to an article; heating the article in an environment to retain at least 90 percent by weight of the solvent, based on the weight of the solvent in the slurry, and inducing phase separation of the thermoplastic polymer from the solvent to provide the polymer matrix composite.

公开(公告)号：US20190218423A1

公开(公告)日：2019-07-18

申请号：US15768957

申请日：2016-12-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Joseph T. Bartusiak ,  Ning Zhou ,  Derek J. Dehn ,  Jeffrey O. Emslander ,  Corinne E. Lipscomb ,  Jayshree Seth ,  Jeffrey A. Carlson

IPC: C09J7/25 ,  C09J7/24 ,  C09J11/08 ,  C09J11/06 ,  C09J7/38 ,  C09J7/35 ,  C09J7/50 ,  C09J7/40

CPC classification number: C09J7/255 ,  C09J7/245 ,  C09J7/35 ,  C09J7/385 ,  C09J7/401 ,  C09J7/50 ,  C09J11/06 ,  C09J11/08 ,  C09J2203/31 ,  C09J2205/106 ,  C09J2205/114 ,  C09J2431/006 ,  C09J2433/00 ,  C09J2467/006 ,  C09J2483/005

Abstract: An article is described such as a tape or sheet, comprising a PLA-based film and a layer of (e.g. pressure sensitive) adhesive disposed on the film. The PLA-based film comprises a semicrystalline polylactic acid polymer; a second polymer such as polyvinyl acetate polymer having a glass transition temperature (Tg) of at least 25° C.; and plasticizer. The tape or sheet may further comprises a low adhesion backsize or a release liner. The article can be suitable for various end-uses. In one embodiment, the tape is a paint masking tape. In another embodiment, the tape is a floor marking tape.

公开(公告)号：US10287413B2

公开(公告)日：2019-05-14

申请号：US15382834

申请日：2016-12-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  Charles L. Bruzzone ,  Michael S. Graff ,  Derek J. Dehn ,  Clint J. Novotny

IPC: C08K3/34 ,  H01F1/26

Abstract: The present disclosure relates to polymer composites that include a thermoplastic polymer, network structure and a soft, ferromagnetic particulate material. The polymer composites may be used, for example, as magnetic flux field directional materials. The present invention also relates to methods of making the polymer composites, e.g. polymer composite sheets, of the present disclosure. In one embodiment, the present disclosure provides a polymer composite including a thermoplastic polymer, network structure; and a soft, ferromagnetic particulate material distributed within the thermoplastic polymer, network structure. The weight fraction of soft, ferromagnetic particulate material may be between 0.80 and 0.98, based on the total weight of the polymer composite and/or the thermoplastic polymer may have a number average molecular weight between 5×104 g/mol to 5×107 g/mol.

公开(公告)号：US20190099991A1

公开(公告)日：2019-04-04

申请号：US16088909

申请日：2017-06-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ning Zhou ,  Haoming Rong ,  Korey W. Karls ,  Matthew T. Scholz ,  Daniel R. McIntyre ,  Derek J. Dehn

IPC: B32B27/12 ,  B32B27/36 ,  B32B27/22 ,  B32B37/22

Abstract: Multilayer articles include a fibrous web and a barrier film directly bonded to the fibrous web; wherein the fibrous web includes fibers that include natural fibers, synthetic fibers, or combinations thereof; wherein the synthetic fibers comprise a synthetic thermoplastic polymer selected from an aliphatic polyester, an aromatic polyester, a polyamide, and combinations thereof; and wherein the barrier film includes a thermoplastic aliphatic polyester, a polyvinyl alkanoate polymer having a Tg of no greater than 70 C; and a non-lactide plasticizer having an acid number of no greater than 10 and having a weight average molecular weight of no greater than 5000 g/mol.

公开(公告)号：US20170341031A1

公开(公告)日：2017-11-30

申请号：US15664325

申请日：2017-07-31

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jinsheng Zhou ,  Jonathan F. Hester ,  Derek J. Dehn ,  Daniel P. Meehan ,  Robin E. Wright

IPC: B01D69/02 ,  B01D67/00 ,  B01D71/26 ,  B01D69/12 ,  B01D69/14 ,  B01D71/40 ,  B01D69/10

CPC classification number: B01D69/02 ,  B01D67/0006 ,  B01D69/10 ,  B01D69/12 ,  B01D69/125 ,  B01D69/141 ,  B01D71/26 ,  B01D71/40 ,  B01D2323/30 ,  B01D2323/345 ,  B01D2325/022 ,  B01D2325/14 ,  B01D2325/16 ,  B01D2325/36 ,  B01D2325/38 ,  Y10T428/24942

Abstract: The present disclosure provides methods for forming asymmetric membranes. More specifically, methods are provided for applying a polymerizable species to a porous substrate for forming a coated porous substrate. The coated porous substrate is exposed to an ultraviolet radiation source having a peak emission wavelength less than 340 nm to polymerize the polymerizable species forming a polymerized material retained within the porous substrate so that the concentration of polymerized material is greater at the first major surface than at the second major surface.

公开(公告)号：US20170173535A1

公开(公告)日：2017-06-22

申请号：US15300022

申请日：2015-04-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Xuan Jiang ,  Kuan-Yin Lin ,  Michelle M Mok ,  Naiyong Jing ,  Derek J. Dehn ,  Richard J. Pokorny ,  Ta-Hua Yu

IPC: B01D61/14 ,  H01M2/16 ,  B01D71/02 ,  B01D69/12 ,  B01D67/00

CPC classification number: B01D61/147 ,  B01D61/145 ,  B01D67/0039 ,  B01D67/0044 ,  B01D67/0069 ,  B01D67/0079 ,  B01D67/0088 ,  B01D69/10 ,  B01D69/105 ,  B01D69/12 ,  B01D69/148 ,  B01D71/027 ,  B01D71/028 ,  B01D71/38 ,  B01D2325/022 ,  H01M2/166 ,  H01M2/1686

Abstract: Articles are described including a first microfiltration membrane layer having a first major surface and a second major surface disposed opposite the first major surface, and a first silica layer directly attached to the first major surface of the first microfiltration membrane layer. The first silica layer includes a polymeric binder and acid-sintered interconnected silica nanoparticles arranged to form a continuous three-dimensional porous network. A method of making an article is also described, including providing a first microfiltration membrane layer having a first major surface and a second major surface disposed opposite the first major surface, and forming a first silica layer on the first major surface.

公开(公告)号：US20160317976A1

公开(公告)日：2016-11-03

申请号：US15206659

申请日：2016-07-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jonathan F. Hester ,  James S. Mrozinski ,  Derek J. Dehn

IPC: B01D69/12 ,  B01D71/06 ,  B01D67/00 ,  B01D69/02

CPC classification number: B01D69/122 ,  B01D67/002 ,  B01D67/0086 ,  B01D69/02 ,  B01D71/06 ,  B01D71/26 ,  B01D2323/00 ,  B01D2323/18 ,  B01D2323/42 ,  B01D2325/02 ,  B01D2325/08 ,  B29C48/08 ,  B29C48/21 ,  B29C48/30 ,  B29C48/307 ,  B29C55/005 ,  B29K2105/0005 ,  B29K2105/04 ,  B29L2031/755

Abstract: A porous membrane that includes a first zone, the first zone including a crystallizable polymer; and a first nucleating agent, the first nucleating agent having a first concentration in the first zone, the first zone having a first average pore size; and a second zone, the second zone including a crystallizable polymer; and a second nucleating agent, the second nucleating agent having a second concentration in the second zone, the second zone having a second average pore size, wherein the crystallizable polymer is the same in the first zone and second zone, wherein the first average pore size is not the same as the second average pore size, wherein the first nucleating agent and the second nucleating agent are the same or different, wherein the first concentration and the second concentration agent are the same or different and with the proviso that the first nucleating agent and the first concentration are not the same as the second nucleating agent and the second concentration. Methods of making membranes are also disclosed.

Abstract translation: 一种多孔膜，其包括第一区域，所述第一区域包括可结晶聚合物; 和第一成核剂，所述第一成核剂在所述第一区域具有第一浓度，所述第一区域具有第一平均孔径; 和第二区域，所述第二区域包括可结晶聚合物; 和第二成核剂，所述第二成核剂在所述第二区域具有第二浓度，所述第二区域具有第二平均孔径，其中所述可结晶聚合物在所述第一区域和第二区域中相同，其中所述第一平均孔径 与第二平均孔径不同，其中第一成核剂和第二成核剂相同或不同，其中第一浓度和第二浓缩剂相同或不同，条件是第一成核剂 并且第一浓度与第二成核剂和第二浓度不相同。 还公开了制备膜的方法。

公开(公告)号：US12269011B2

公开(公告)日：2025-04-08

申请号：US18351030

申请日：2023-07-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jerald K. Rasmussen ,  Derek J. Dehn ,  Clinton P. Waller, Jr. ,  Bharat R. Acharya ,  Satinder K. Nayar

IPC: B01J20/28 ,  B01D39/16 ,  B01J20/10 ,  B01J20/22 ,  B01J20/26 ,  B01J20/30

Abstract: A polymer matrix composite comprising a porous polymeric network; and a plurality of functional particles distributed within the polymeric network structure, and wherein the polymer matrix composite has an air flow resistance at 25° C., as measured by the “Air Flow Resistance Test,” of less than 300 seconds/50 cm3/500 micrometers; and wherein the polymer matrix composite has a density of at least 0.3 g/cm3; and methods for making the same. The polymer matrix composites are useful, for example, as filters.

公开(公告)号：US20240294002A1

公开(公告)日：2024-09-05

申请号：US18649399

申请日：2024-04-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  Derek J. Dehn ,  Bradley L. Givot ,  Jaewon Kim ,  Yong K. Wu

IPC: B32B27/18 ,  B32B5/12 ,  B32B5/16 ,  B32B7/12 ,  B32B27/08 ,  C08J5/18

CPC classification number: B32B27/18 ,  B32B5/12 ,  B32B5/16 ,  B32B7/12 ,  B32B27/08 ,  C08J5/18 ,  B32B2250/03 ,  B32B2250/24 ,  B32B2262/02 ,  B32B2264/101 ,  B32B2264/102 ,  B32B2264/2032 ,  B32B2264/303 ,  B32B2264/403 ,  B32B2307/204 ,  B32B2307/54 ,  B32B2307/706 ,  B32B2605/00

Abstract: A film includes a polymeric material and a plurality of particles dispersed therein. The polymeric material includes a plurality of elongate polymeric elements oriented along substantially a same first direction and interconnecting the particles. A ratio of a volume of the plurality of particles to a volume of the polymeric material is at least 5. An elongate portion of at least a first elongate polymeric element in the plurality of elongate polymeric elements may conform to and be bonded to a first particle in the plurality of particles along an entire length of the elongate portion. The first elongate polymeric element may extend from the elongate portion at least to a second particle in the plurality of particles.

公开(公告)号：US12075606B2

公开(公告)日：2024-08-27

申请号：US17607991

申请日：2020-05-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael S. Graff ,  Derek J. Dehn ,  Paul T. Hines ,  Charles L Bruzzone ,  Bharat R. Acharya ,  Ronald D. Jesme ,  William J. Kopecky ,  Jennifer J. Sokol ,  Sergei A. Manuilov

IPC: H05K9/00 ,  H01F1/20 ,  H01F1/26 ,  H01F1/28 ,  H01F27/36 ,  H01F38/14 ,  H01F41/16

CPC classification number: H05K9/0075 ,  H01F1/20

Abstract: A magnetic shielding film includes opposing first and second major surfaces and a plurality of particles dispersed therebetween, each particle having a magnetic permeability, a thickness H along a thickness direction of the particle, and a longest dimension L along a length direction of the particle orthogonal to the thickness direction, L/H greater than or equal to 2, the particles defining a plurality of voids therebetween, the length directions of at least 60% of the particles oriented within 5.5 degrees of a same orientation direction.