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GB1336691A - Synthetic paper structures - Google Patents

Synthetic paper structures

Info

Publication number
GB1336691A
GB1336691A GB190872A GB190872A GB1336691A GB 1336691 A GB1336691 A GB 1336691A GB 190872 A GB190872 A GB 190872A GB 190872 A GB190872 A GB 190872A GB 1336691 A GB1336691 A GB 1336691A
Authority
GB
United Kingdom
Prior art keywords
paper
added
synthetic paper
paper structures
nemours
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.)
Expired
Application number
GB190872A
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.)
EIDP 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 GB1336691A publication Critical patent/GB1336691A/en
Expired legal-status Critical Current

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
    • B32B5/22—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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/26—Polyamides; Polyimides
    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Organic Insulating Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

1336691 Paper EI DU PONT DE NEMOURS & CO 14 Jan 1972 [26 Feb 1971] 1908/72 Heading D2B [Also in Division B5] A flexible electrical insulating paper comprises a mat of 15-90% by wt. of non-fusible aromatic polyamide fibrids and 85-10% by wt. of polyester fibres having a length of less than one inch. An oxide, hydroxide, or nitrate of bismuth may be added to the paper to inhibit oxidative degradation at elevated temperatures. Binders e.g. acrylic polymers may also be added either before or after sheet formation. The paper may be compressed by calendering.
GB190872A 1971-02-26 1972-01-14 Synthetic paper structures Expired GB1336691A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11856171A 1971-02-26 1971-02-26
US11856071A 1971-02-26 1971-02-26

Publications (1)

Publication Number Publication Date
GB1336691A true GB1336691A (en) 1973-11-07

Family

ID=26816500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190872A Expired GB1336691A (en) 1971-02-26 1972-01-14 Synthetic paper structures

Country Status (4)

Country Link
US (1) US3756908A (en)
DE (1) DE2209076A1 (en)
FR (1) FR2127801A5 (en)
GB (1) GB1336691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5026456A (en) * 1990-06-14 1991-06-25 E. I. Du Pont De Nemours And Company Aramid papers containing aramid paper pulp

Families Citing this family (121)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2658679C2 (en) * 1976-12-23 1983-07-21 Institut elementoorganičeskich soedinenij Akademii Nauk SSSR, Moskva Electro-insulating sheet material
JPS5441500A (en) 1977-09-08 1979-04-02 Mitsubishi Paper Mills Ltd Oil-immersion insulating board
US4163912A (en) * 1977-09-23 1979-08-07 General Electric Company Electrical insulating sheet material and electric winding made therefrom
JPS54106900A (en) * 1978-02-09 1979-08-22 Mitsubishi Paper Mills Ltd Thin paper for electrical insulation
EP0019113B1 (en) * 1979-05-09 1983-04-13 Teijin Limited Aromatic polyamide paper-like sheet and processes for producing the same
US4425126A (en) 1979-12-28 1984-01-10 Johnson & Johnson Baby Products Company Fibrous material and method of making the same using thermoplastic synthetic wood pulp fibers
US4392861A (en) * 1980-10-14 1983-07-12 Johnson & Johnson Baby Products Company Two-ply fibrous facing material
US4380519A (en) * 1981-03-30 1983-04-19 E. I. Du Pont De Nemours And Company Process for embossing polymeric substrates by using a composite structure of an aromatic polyamide fabric coated with a fluorosilicone rubber
US4346140A (en) * 1981-03-30 1982-08-24 E. I. Du Pont De Nemours And Company Composite structure of an aromatic polyamide fabric coated with a fluorosilicone rubber
FR2507123A1 (en) * 1981-06-04 1982-12-10 Arjomari Prioux Reinforced thermoplastic semi-finished sheet prod. - prepd. from poly-aramid pulp, thermoplastic powder or fibres and opt. binder, for thermo-forming or stamping
BR8204930A (en) * 1981-08-28 1983-08-02 Du Pont EXPANDED UNLOCKED SHEET AND PROCESS FOR ITS MANUFACTURING
US4515656A (en) * 1981-08-28 1985-05-07 E. I. Du Pont De Nemours And Company Low density nonwoven sheets
US4392315A (en) * 1982-01-12 1983-07-12 Standard Knitting Mills, Inc. Destruction and dye resistant tag; tagged textile article and method of identifying textiles subject to a dyeing and finishing process
JPS58180650A (en) * 1982-04-19 1983-10-22 帝人株式会社 Aromatic polyamide nonwoven fabric
US4472241A (en) * 1983-06-15 1984-09-18 E. I. Du Pont De Nemours And Company Co-refining of aramid fibrids and floc
AU578270B2 (en) * 1984-03-14 1988-10-20 E.I. Du Pont De Nemours And Company Improved pressboard and process for its preparation
US4729921A (en) * 1984-10-19 1988-03-08 E. I. Du Pont De Nemours And Company High density para-aramid papers
US4752355A (en) * 1985-02-04 1988-06-21 Provost Richard L Pressboard and process for its preparation
CA1285674C (en) * 1986-10-15 1991-07-02 E. I. Du Pont De Nemours And Company Spinnable dopes and articles therefrom
US4886578A (en) * 1987-09-24 1989-12-12 E. I. Du Pont De Nemours And Company High heat resistant oil-impregnatable electrical insulating board
US4940512A (en) * 1988-08-18 1990-07-10 E. I. Du Pont De Nemours And Co.Ny Cross-directional distribution of additives in synthetic papers
US5086108A (en) * 1989-03-31 1992-02-04 E. I. Du Pont De Nemours And Company Fibrids loaded with electromagnetic-wave obscorants
US4990384A (en) * 1989-04-14 1991-02-05 Somar Corporation Paper cook pot
US4992141A (en) * 1989-05-26 1991-02-12 E. I. Du Pont De Nemours And Company Thin, resin-saturable aromatic polyamide paper and process for making same
US5028300A (en) * 1989-08-31 1991-07-02 E. I. Du Pont De Nemours And Company Aromatic polyamide paper with thickened edge areas and process for making same
US5126012A (en) * 1990-03-12 1992-06-30 E. I. Du Pont De Nemours And Company High strength papers from floc and fibrids
US5137768A (en) * 1990-07-16 1992-08-11 E. I. Du Pont De Nemours And Company High shear modulus aramid honeycomb
US5091456A (en) * 1990-08-30 1992-02-25 E. I. Du Pont De Nemours And Company Aramid fiber of improved hydrolytic stability
JPH0785919B2 (en) * 1990-11-30 1995-09-20 ソマール株式会社 Insulation board
EP0496313B1 (en) * 1991-01-22 1996-07-17 Hoechst Aktiengesellschaft Non-woven reinforced with a meltbinder
JP2939350B2 (en) 1991-02-04 1999-08-25 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Thin, aromatic polyamide paper with thicker edge areas and method of making same
US5089088A (en) * 1991-02-28 1992-02-18 E. I. Du Pont De Nemours And Company Low-density, high strength aramid boards
US5209877A (en) * 1991-07-02 1993-05-11 E. I. Du Pont De Nemours And Company Method of making fibrids
WO1993001333A1 (en) * 1991-07-02 1993-01-21 E.I. Du Pont De Nemours And Company Fibrid thickeners
US5223094A (en) * 1992-05-13 1993-06-29 E. I. Du Pont De Nemours And Company Process for preparing strong aromatic polyamide papers of high porosity
DE69320697T2 (en) * 1992-06-09 1999-02-18 Unitika Ltd., Amagasaki, Hyogo Polyimide paper, polyimide composite paper and process for making these products
US5320892A (en) * 1993-02-22 1994-06-14 E. I. Du Pont De Nemours And Company Tough layered papers with improved surface adhesion
US5415738A (en) * 1993-03-22 1995-05-16 Evanite Fiber Corporation Wet-laid non-woven fabric and method for making same
US5622775A (en) * 1993-08-24 1997-04-22 E. I. Du Pont De Nemours And Company Layered smooth surface aramid papers of high strength and printability
DE69412286T2 (en) * 1993-12-22 1998-12-03 Minnesota Mining And Mfg. Co., Saint Paul, Minn. USE OF LEAF-SHAPED MATERIALS FOR SOLID PHASE EXTRACTIONS AND SOLID PHASE REACTIONS
US5529844A (en) * 1994-04-29 1996-06-25 Pall Corporation Aramid fiber filtration sheet
US5789059A (en) * 1995-04-28 1998-08-04 Showa Aircraft Industry Co., Ltd. Honeycomb core
US5709798A (en) * 1995-06-19 1998-01-20 Pall Corporation Fibrous nonwoven web
TW387958B (en) * 1997-06-10 2000-04-21 Teijin Ltd Heat-resistant fiber paper
US5998309A (en) * 1997-07-17 1999-12-07 E. I. Du Pont De Nemours And Company Molded aramid sheets
JPH11131385A (en) * 1997-11-05 1999-05-18 Oji Paper Co Ltd Laminate substrate, method for producing the same, prepreg and laminate
CN1078645C (en) * 1999-01-22 2002-01-30 四川省对外经济贸易总公司 Special synthetic fiber paper and its production
US7015159B2 (en) * 2001-07-24 2006-03-21 E. I. Du Pont De Nemours And Company Nonwoven material for low friction bearing surfaces
US20030082974A1 (en) 2001-08-30 2003-05-01 Samuels Michael R. Solid sheet material especially useful for circuit boards
US6537424B1 (en) * 2002-04-10 2003-03-25 Fibermark, Inc. High temperature paper
US6921459B2 (en) * 2002-09-10 2005-07-26 Fibermark, Inc. Process for making a sheet of aramid fibers using a foamed medium
US7335276B2 (en) * 2002-10-01 2008-02-26 E.I. Du Pont De Nemours And Company Formation of aramid paper laminate
US20040071952A1 (en) * 2002-10-01 2004-04-15 Anderson David Wayne Aramid paper laminate
US6991845B2 (en) * 2002-12-13 2006-01-31 E. I. Du Pont De Nemours And Company Mica sheet and tape
MY145156A (en) * 2003-12-09 2011-12-30 Teijin Aramid Bv Para-aramid fibrid film
WO2005068322A1 (en) 2003-12-31 2005-07-28 E.I. Du Pont De Nemours And Company High temperature microwave susceptor structure
US20050230072A1 (en) * 2004-04-16 2005-10-20 Levit Mikhail R Aramid paper blend
US7455750B2 (en) * 2004-06-25 2008-11-25 E.I. Du Pont De Nemours And Company Meta- and para-aramid pulp and processes of making same
US20060068670A1 (en) * 2004-09-30 2006-03-30 Anderson David W Electrical insulation laminates and electrical devices containing such laminates
US7084349B1 (en) 2005-02-03 2006-08-01 E. I. Du Pont De Nemours And Company Insulated power cable
US8168039B2 (en) * 2005-05-26 2012-05-01 E. I. Du Pont De Nemours And Company Electroconductive aramid paper and tape made therefrom
JP4658194B2 (en) * 2005-07-06 2011-03-23 コーロン インダストリーズ インク Method for producing wholly aromatic polyamide filament
WO2007076333A2 (en) * 2005-12-21 2007-07-05 E. I. Du Pont De Nemours And Company Paper comprising pipd pulp and a process for making same
EP1963567B1 (en) * 2005-12-21 2010-10-27 E.I. Du Pont De Nemours And Company Pipd paper and components made therefrom
US7727358B2 (en) * 2005-12-21 2010-06-01 E.I. Du Pont De Nemours And Company Pulp comprising polypyridobisimidazole and other polymers and methods of making same
US7740741B2 (en) * 2005-12-21 2010-06-22 E.I. Du Pont De Nemours And Company Para-aramid pulp including meta-aramid fibrids and processes of making same
WO2007076334A2 (en) * 2005-12-21 2007-07-05 E. I. Du Pont De Nemours And Company Paper comprising pipd floc and process for making the same
US7785520B2 (en) * 2006-12-15 2010-08-31 E.I. Du Pont De Nemours And Company Processes for making shaped honeycomb and honeycombs made thereby
US20080145602A1 (en) 2006-12-15 2008-06-19 Gary Lee Hendren Processes for making shaped honeycomb and honeycombs made thereby
US7815993B2 (en) 2006-12-15 2010-10-19 E.I. Du Pont De Nemours And Company Honeycomb from paper having flame retardant thermoplastic binder
US7771811B2 (en) * 2006-12-15 2010-08-10 E.I. Du Pont De Nemours And Company Honeycomb from controlled porosity paper
US7771809B2 (en) * 2006-12-15 2010-08-10 E. I. Du Pont De Nemours And Company Shaped honeycomb
US20080286522A1 (en) * 2006-12-15 2008-11-20 Subhotosh Khan Honeycomb having a low coefficient of thermal expansion and articles made from same
US7771810B2 (en) * 2006-12-15 2010-08-10 E.I. Du Pont De Nemours And Company Honeycomb from paper having a high melt point thermoplastic fiber
US8025949B2 (en) 2006-12-15 2011-09-27 E.I. Du Pont De Nemours And Company Honeycomb containing poly(paraphenylene terephthalamide) paper with aliphatic polyamide binder and articles made therefrom
US8268434B2 (en) * 2007-11-30 2012-09-18 E I Du Pont De Nemours And Company Honeycomb having a high compression strength and articles made from same
US20090142567A1 (en) * 2007-12-03 2009-06-04 E.I. Du Pont De Nemours And Company Thermally conductive aramid-based dielectric substrates for printed circuit boards and integrated circuit chip packaging
US8118975B2 (en) * 2007-12-21 2012-02-21 E. I. Du Pont De Nemours And Company Papers containing fibrids derived from diamino diphenyl sulfone
US8114251B2 (en) * 2007-12-21 2012-02-14 E.I. Du Pont De Nemours And Company Papers containing fibrids derived from diamino diphenyl sulfone
US7803247B2 (en) * 2007-12-21 2010-09-28 E.I. Du Pont De Nemours And Company Papers containing floc derived from diamino diphenyl sulfone
CN101343845B (en) * 2008-07-22 2010-09-08 成都龙邦新材料有限公司 Aramid fiber honeycomb core base stock and preparation method thereof
US8431213B2 (en) * 2008-11-14 2013-04-30 E I Du Pont De Nemours And Company Sheet structures having improved compression performance
EP2347046A1 (en) * 2008-11-14 2011-07-27 E. I. du Pont de Nemours and Company Processes for making sheet structures having improved compression performance
US20110281080A1 (en) 2009-11-20 2011-11-17 E. I. Du Pont De Nemours And Company Folded Core Based on Carbon Fiber Paper and Articles Made from Same
US20110281063A1 (en) 2009-11-20 2011-11-17 E. I. Du Pont De Nemours And Company Honeycomb core based on carbon fiber paper and articles made from same
US9073290B2 (en) * 2010-06-29 2015-07-07 E I Du Pont De Nemours And Company Multilayer structure useful for electrical insulation
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US20130217854A1 (en) 2010-12-16 2013-08-22 E I Du Pont De Nemours And Company Preparation of sulfonated polyoxadiazole polymers
WO2012093047A1 (en) 2011-01-04 2012-07-12 Teijin Aramid B.V. Paper comprising microfilaments
JP5886320B2 (en) 2011-01-04 2016-03-16 テイジン・アラミド・ビー．ブイ． Electrical insulation paper
JP2014529842A (en) * 2011-08-03 2014-11-13 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニーＥ．Ｉ．Ｄｕ Ｐｏｎｔ Ｄｅ Ｎｅｍｏｕｒｓ Ａｎｄ Ｃｏｍｐａｎｙ Useful laminates for electrical insulation
WO2013045366A1 (en) 2011-09-27 2013-04-04 Teijin Aramid B.V. Antistatic aramid material
US20130157001A1 (en) 2011-12-19 2013-06-20 E I Du Pont De Nemours And Company Structural core
US20130183484A1 (en) 2012-01-12 2013-07-18 E I Du Pont De Nemours And Company Core structures comprising tannin resin
US9434142B2 (en) 2012-01-26 2016-09-06 E I Du Pont De Nemours And Company Method of making a sandwich panel
WO2013117462A1 (en) 2012-02-07 2013-08-15 Teijin Aramid B.V. Aramid paper having increased strength and process for manufacturing thereof
US20140113104A1 (en) 2012-02-23 2014-04-24 E I Du Pont De Nemours And Company Fiber-resin composite sheet and article comprising the same
EP2861648B1 (en) 2012-06-15 2016-07-27 E. I. du Pont de Nemours and Company Sulfonated polyoxadiazole polymers articles
WO2013188339A1 (en) 2012-06-15 2013-12-19 E. I. Du Pont De Nemours And Company Sulfonated naphthalene polyoxadiazole polymers
US20140186576A1 (en) 2012-12-28 2014-07-03 E I Du Pont De Nemours And Company Insulating material containing nanocellulose
WO2015066160A1 (en) 2013-10-30 2015-05-07 E. I. Du Pont De Nemours And Company Sheets and fibrids comprising a mixture of poly(m-phenylene isophthalamide) and copolymer made from (6)-amino-2-(p-aminophenyl)benzimidazole
CN103806345B (en) * 2014-02-14 2016-04-20 长春高琦聚酰亚胺材料有限公司 A kind of polyimide insulative cardboard and preparation method thereof
US9844928B2 (en) 2014-06-16 2017-12-19 E I Du Pont De Nemours And Company High limiting oxygen index electrical insulation laminates
US9976258B2 (en) 2014-10-03 2018-05-22 E I Du Pont De Nemours And Company Honeycomb core having a high compression strength
CN104630924B (en) * 2015-01-12 2017-01-04 烟台泰和新材料股份有限公司 A kind of preparation method of aromatic polyamide thin-film shape fibrid
CN104818646B (en) * 2015-05-22 2017-07-07 江苏展宝新材料有限公司 Fibrous paper comprising p POD chopped strands and preparation method thereof
US10186353B2 (en) 2015-06-30 2019-01-22 E I Du Pont De Nemours And Company Corona-resistant resin-compatible laminates
US11111632B2 (en) 2016-11-30 2021-09-07 Teijin Aramid B.V. Aramid paper suitable for use in electronic applications
CN111295479A (en) * 2017-11-07 2020-06-16 特种东海制纸株式会社 insulating sheet
JP7391880B2 (en) * 2018-05-28 2023-12-05 テイジン・アラミド・ビー．ブイ． Aramid-based paper with improved properties
US11078627B2 (en) 2018-08-14 2021-08-03 Dupont Safety & Construction, Inc. High tensile strength paper suitable for use in electrochemical cells
US11509016B2 (en) 2019-03-15 2022-11-22 Dupont Safety & Construction, Inc. Papers useful as thermal insulation and flame barriers for battery cells
US11578461B2 (en) 2020-03-17 2023-02-14 Dupont Safety & Construction, Inc. Papers comprising aerogel powder and aramid polymer fibrils
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WO2026006093A1 (en) 2024-06-24 2026-01-02 Dupont Safety & Construction, Inc. Papers having high dielectric strength, high average specific modulus, and high density
WO2026006094A1 (en) 2024-06-24 2026-01-02 Dupont Safety & Construction, Inc. Papers having high average specific modulus and ultimate tensile strength
WO2026008752A1 (en) 2024-07-05 2026-01-08 Teijin Aramid B.V. Recycling of aramid honeycombs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5026456A (en) * 1990-06-14 1991-06-25 E. I. Du Pont De Nemours And Company Aramid papers containing aramid paper pulp

Also Published As

Publication number Publication date
FR2127801A5 (en) 1972-10-13
US3756908A (en) 1973-09-04
DE2209076A1 (en) 1972-09-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee