CA2803162C - Multilayer structure useful for electrical insulation - Google Patents

Multilayer structure useful for electrical insulation Download PDF

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Publication number
CA2803162C
CA2803162C CA2803162A CA2803162A CA2803162C CA 2803162 C CA2803162 C CA 2803162C CA 2803162 A CA2803162 A CA 2803162A CA 2803162 A CA2803162 A CA 2803162A CA 2803162 C CA2803162 C CA 2803162C
Authority
CA
Canada
Prior art keywords
aramid
layer
cellulose
weight percent
present
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA2803162A
Other languages
English (en)
French (fr)
Other versions
CA2803162A1 (en
Inventor
Mikhail R. Levit
Byoung Sam Kang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DuPont Safety and Construction Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of CA2803162A1 publication Critical patent/CA2803162A1/en
Application granted granted Critical
Publication of CA2803162C publication Critical patent/CA2803162C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/02—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose in the form of fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/10—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
    • H01B3/305—Polyamides or polyesteramides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/47—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes fibre-reinforced plastics, e.g. glass-reinforced plastics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/323—Insulation between winding turns, between winding layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/308—Heat stability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31725—Of polyamide
    • Y10T428/31779—Next to cellulosic

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Organic Insulating Materials (AREA)
CA2803162A 2010-06-29 2011-06-28 Multilayer structure useful for electrical insulation Active CA2803162C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/825,810 2010-06-29
US12/825,810 US9073290B2 (en) 2010-06-29 2010-06-29 Multilayer structure useful for electrical insulation
PCT/US2011/042095 WO2012003166A1 (en) 2010-06-29 2011-06-28 Multilayer structure useful for electrical insulation

Publications (2)

Publication Number Publication Date
CA2803162A1 CA2803162A1 (en) 2012-01-05
CA2803162C true CA2803162C (en) 2018-05-01

Family

ID=45351993

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2803162A Active CA2803162C (en) 2010-06-29 2011-06-28 Multilayer structure useful for electrical insulation

Country Status (7)

Country Link
US (1) US9073290B2 (https=)
EP (1) EP2588304B1 (https=)
JP (2) JP5907626B2 (https=)
CN (1) CN102958690B (https=)
BR (1) BR112012031000B8 (https=)
CA (1) CA2803162C (https=)
WO (1) WO2012003166A1 (https=)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013033044A1 (en) * 2011-08-26 2013-03-07 E. I. Du Pont De Nemours And Company Multilayer structure useful for electrical insulation
US9028727B2 (en) 2011-09-23 2015-05-12 E I Du Pont De Nemours And Company Dielectric fluids comprising polyol esters
DK2867012T3 (en) * 2012-06-29 2017-12-04 Wicor Holding Ag INSULATION FOR ELECTRIC INSULATION IN THE HIGH VOLTAGE AREA
CN104798144B (zh) * 2012-11-23 2018-11-06 帝人芳纶有限公司 电绝缘纸
US20140186576A1 (en) 2012-12-28 2014-07-03 E I Du Pont De Nemours And Company Insulating material containing nanocellulose
CN104937682A (zh) * 2013-03-01 2015-09-23 Abb技术有限公司 电绝缘复合物材料及包含其的电学装置
US9844928B2 (en) * 2014-06-16 2017-12-19 E I Du Pont De Nemours And Company High limiting oxygen index electrical insulation laminates
EP3288041A1 (de) 2016-08-23 2018-02-28 Wicor Holding AG Isolationselement mit chemiefasern zur elektrischen isolation im hochspannungsbereich
US10801395B1 (en) * 2016-11-29 2020-10-13 National Technology & Engineering Solutions Of Sandia, Llc Ducted fuel injection
CN111218842A (zh) * 2020-01-07 2020-06-02 湖南广信科技股份有限公司 复合纤维纸坯、绝缘复合纸板及其制作工艺
EP4381130B1 (en) 2021-08-03 2025-10-29 DuPont Safety & Construction, Inc. Low-shedding aramid paper containing mica
CN119446746B (zh) * 2024-10-16 2025-11-14 东莞市仲康电子科技有限公司 一种磁环绝缘结构及大功率高输出的多绕组环形电感

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756908A (en) * 1971-02-26 1973-09-04 Du Pont Synthetic paper structures of aromatic polyamides
CH634681A5 (en) 1976-12-23 1983-02-15 Vnii Sintetischeskich Smol Electrically insulating board material and a method for its production
CH637500A5 (en) 1979-01-15 1983-07-29 Weidmann H Ag Method for producing an insulating strip material for insulation in the case of electrical apparatuses, and use of the strip material
US5226970A (en) * 1991-05-01 1993-07-13 General Signal Corporation Electrical transformer remanufacturing process for removal of contaminants
US6942757B1 (en) 1993-11-29 2005-09-13 Teijin Twaron B.V. Process for preparing para-aromatic polyamide paper
US5723568A (en) 1995-01-17 1998-03-03 Teijin Limited Polyamide solution composition and methods for producing fibrids and paper-like sheets using the same
EP0739707B1 (en) 1995-04-28 2000-06-14 Showa Aircraft Industry Co., Ltd. Honeycomb core
JP2732822B2 (ja) * 1995-12-28 1998-03-30 デュポン帝人アドバンスドペーパー株式会社 複合体シートおよびその製造方法
JPH10145999A (ja) * 1996-11-14 1998-05-29 Hitachi Ltd 電気機械
JP2000034693A (ja) * 1998-07-13 2000-02-02 Du Pont Teijin Advanced Paper Kk 複合体シートおよびその製造方法
US6980076B1 (en) * 2000-05-19 2005-12-27 Mcgraw Edison Company Electrical apparatus with synthetic fiber and binder reinforced cellulose insulation paper
US6537424B1 (en) * 2002-04-10 2003-03-25 Fibermark, Inc. High temperature paper
US20040140072A1 (en) * 2002-09-10 2004-07-22 Fibermark, Inc. High temperature paper containing aramid component
US20060068670A1 (en) * 2004-09-30 2006-03-30 Anderson David W Electrical insulation laminates and electrical devices containing such laminates
JP4875855B2 (ja) * 2005-05-20 2012-02-15 日東シンコー株式会社 積層シート

Also Published As

Publication number Publication date
CN102958690A (zh) 2013-03-06
JP2016153546A (ja) 2016-08-25
JP6138992B2 (ja) 2017-05-31
BR112012031000B8 (pt) 2023-02-28
BR112012031000A2 (pt) 2016-10-25
EP2588304A1 (en) 2013-05-08
WO2012003166A1 (en) 2012-01-05
US9073290B2 (en) 2015-07-07
US20110316660A1 (en) 2011-12-29
BR112012031000B1 (pt) 2020-03-31
EP2588304B1 (en) 2014-08-27
JP5907626B2 (ja) 2016-04-26
CA2803162A1 (en) 2012-01-05
JP2013535354A (ja) 2013-09-12
CN102958690B (zh) 2015-09-02

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