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公开(公告)号:US11235552B2
公开(公告)日:2022-02-01
申请号:US17058258
申请日:2018-07-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: MingZhu Li , Pingfan Wu , Tien Tsung Wu , Eumi Pyun , Zhong Hai Cai , QiSheng Pan
Abstract: Provided is a multilayer thermal insulator and related method that use a non-woven core layer comprising non-meltable and flame-resistant polymeric fibers. One or more scrims are disposed on the opposing major surfaces of the non-woven core layer, and a peripheral edge of the one or more scrims is either edge sealed or capable of being edge sealed to substantially encapsulate the non-woven core layer within the one or more scrims. Optionally, a binder is provided on the scrims or non-woven core layer to facilitate edge sealing. The provided insulators are essentially dust-free and capable of passing stringent flammability standards.
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公开(公告)号:US12163085B2
公开(公告)日:2024-12-10
申请号:US17429386
申请日:2020-03-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Megan A. Creighton , Nathan E. Schultz , Tien Tsung Wu
IPC: C09K21/14 , C08H7/00 , C08K5/3415 , C08L97/00 , C09K21/10
Abstract: A flame-retardant composition is described comprising a mixture of a water dispersible organic polymer; and a water dispersible derivative of an unsaturated dicarboxylic acid or anhydride thereof. The water dispersible derivative typically has a solubility in a 0.1 N aqueous solution of NaOH at 25° C. of at least 25 g/liter. Also described is a flame-retardant composition comprising the mixture described dispersed in an aqueous carrier and method of making a flame-retardant composition.
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公开(公告)号:US11661687B2
公开(公告)日:2023-05-30
申请号:US17860715
申请日:2022-07-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Pingfan Wu , Tien Tsung Wu , Gerry A. Hoffdahl , MingZhu Li
IPC: D04H1/4382 , D04H1/435 , B29C43/24 , D04H1/43 , H01M10/658 , B29C70/08 , D04H1/4374 , D04H1/485 , B29K233/20 , B29C43/52 , B29K105/12 , B05D1/18
CPC classification number: D04H1/4382 , B29C43/24 , B29C70/08 , D04H1/43 , D04H1/435 , D04H1/43835 , H01M10/658 , B05D1/18 , B29C2043/522 , B29C2043/525 , B29K2105/128 , B29K2233/20 , B32B2250/20 , B32B2262/0276 , B32B2262/14 , D04H1/4374 , D04H1/485
Abstract: The provided articles and methods use a non-woven fibrous web containing 60-100 wt % of oxidized polyacrylonitrile fibers; and 0-40 wt % of reinforcing fibers having outer surfaces comprised of a polymer with a melting temperature of from 100° C. to 300° C. The non-woven fibrous web has an average bulk density of from 15 kg/m3 to 50 kg/m3, with the plurality of fibers substantially entangled along directions perpendicular to a major surface of the non-woven fibrous web. Optionally, the oxidized polyacrylonitrile fibers can have a crimped configuration. Advantageously, these articles can display a combination of low thermal conductivity, high tensile strength, and flame resistance.
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公开(公告)号:US20220242089A1
公开(公告)日:2022-08-04
申请号:US17595591
申请日:2020-06-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Heonjoo Ha , Tien Tsung Wu , Nathan E. Schultz , Gerry A. Hoffdahl
Abstract: A flame retardant foam. The flame retardant foam includes a from 25 to 75 wt % polyvinyl alcohol foam; and a from 25 to 95 wt % fire retardant coated on the polyvinyl alcohol foam, wherein the fire retardant comprises ammonium polyphosphate or sodium metasilicate; wherein the thickness of the foam is from 2 mm to 1 cm.
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公开(公告)号:US20230357640A1
公开(公告)日:2023-11-09
申请号:US17429386
申请日:2020-03-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Megan A. Creighton , Nathan E. Schultz , Tien Tsung Wu
IPC: C09K21/14 , C09K21/10 , C08K5/3415 , C08H7/00 , C08L97/00
CPC classification number: C09K21/14 , C09K21/10 , C08K5/3415 , C08H6/00 , C08L97/005 , C08L2201/02
Abstract: A flame-retardant composition is described comprising a mixture of a water dispersible organic polymer; and a water dispersible derivative of an unsaturated dicarboxylic acid or anhydride thereof. The water dispersible derivative typically has a solubility in a 0.1 N aqueous solution of NaOH at 25° C. of at least 25 g/liter. Also described is a flame-retardant composition comprising the mixture described dispersed in an aqueous carrier and method of making a flame-retardant composition.
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公开(公告)号:US20220227100A1
公开(公告)日:2022-07-21
申请号:US17595597
申请日:2020-06-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Heonjoo Ha , Tien Tsung Wu , Nathan E. Schultz , Gerry A. Hoffdahl
IPC: B32B5/26 , H01M50/249 , B32B5/02 , B32B5/08
Abstract: A nonwoven fibrous web includes a flame retardant nonwoven fabric coated with a fire retardant, wherein the fire retardant comprises ammonium polyphosphate or alkali metal silicate; and wherein the flame retardant nonwoven fabric has a first major surface and an opposed second major surface; a first nonwoven fabric covering at least a portion of the first major surface; and a second nonwoven fabric covering at least a portion of the second major surface. The first and second nonwoven fabrics each comprise oxidized polyacrylonitrile fibers and optional reinforcing fibers.
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