BRPI0819004B1 - estrutura em forma de favo de mel e painel estrutural - Google Patents

estrutura em forma de favo de mel e painel estrutural Download PDF

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Publication number
BRPI0819004B1
BRPI0819004B1 BRPI0819004A BRPI0819004A BRPI0819004B1 BR PI0819004 B1 BRPI0819004 B1 BR PI0819004B1 BR PI0819004 A BRPI0819004 A BR PI0819004A BR PI0819004 A BRPI0819004 A BR PI0819004A BR PI0819004 B1 BRPI0819004 B1 BR PI0819004B1
Authority
BR
Brazil
Prior art keywords
paper
honeycomb structure
resin
honeycomb
curvature
Prior art date
Application number
BRPI0819004A
Other languages
English (en)
Portuguese (pt)
Inventor
R Levit Mikhail
Original Assignee
Du Pont
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40227667&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0819004(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Du Pont filed Critical Du Pont
Publication of BRPI0819004A2 publication Critical patent/BRPI0819004A2/pt
Publication of BRPI0819004B1 publication Critical patent/BRPI0819004B1/pt

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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/12—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • 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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/02—Layered products comprising a layer of paper or cardboard 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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/12—Coating on the layer surface on paper 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/028—Paper 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/302—Conductive
    • 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
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • 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
    • B32B2307/54—Yield strength; Tensile strength
    • 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
    • B32B2307/542—Shear strength
    • 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
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • 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
    • B32B2307/734—Dimensional stability
    • 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
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/48—Condensation polymers of aldehydes or ketones with phenols
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/56—Polyamines; Polyimines; Polyester-imides
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149—Honeycomb-like
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249962—Void-containing component has a continuous matrix of fibers only [e.g., porous paper, etc.]
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/254—Polymeric or resinous material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)
BRPI0819004A 2007-11-30 2008-11-24 estrutura em forma de favo de mel e painel estrutural BRPI0819004B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US507107P 2007-11-30 2007-11-30
PCT/US2008/084537 WO2009070531A1 (en) 2007-11-30 2008-11-24 Honeycomb having a high mechanical strength and articles made from same

Publications (2)

Publication Number Publication Date
BRPI0819004A2 BRPI0819004A2 (pt) 2017-05-16
BRPI0819004B1 true BRPI0819004B1 (pt) 2019-08-13

Family

ID=40227667

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0819004A BRPI0819004B1 (pt) 2007-11-30 2008-11-24 estrutura em forma de favo de mel e painel estrutural

Country Status (7)

Country Link
US (1) US8268434B2 (enExample)
EP (1) EP2214900B1 (enExample)
JP (1) JP5368468B2 (enExample)
KR (1) KR20100094543A (enExample)
CN (1) CN101878108B (enExample)
BR (1) BRPI0819004B1 (enExample)
WO (1) WO2009070531A1 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8298647B2 (en) * 2007-08-20 2012-10-30 California Institute Of Technology Multilayered cellular metallic glass structures and methods of preparing the same
EP2037039A1 (en) * 2007-09-12 2009-03-18 Teijin Aramid B.V. Paper comprising polybenzazole or precursor thereof
US20100047515A1 (en) * 2008-08-21 2010-02-25 E. I. Du Pont De Nemours And Company Honeycomb Core Having a High Compression Strength and Articles Made from the Same
US8156710B1 (en) * 2010-11-19 2012-04-17 Advance Vinyl Floor Manufacturing Corp. Method and apparatus for floor tiles and planks
EP2661522B1 (en) 2011-01-04 2016-10-19 Teijin Aramid B.V. Paper comprising microfilaments
DE102012022713B3 (de) * 2012-11-21 2014-02-13 Diehl Aircabin Gmbh Paneel und Verfahren zur Herstellung eines Paneels
SG10201405027SA (en) * 2014-08-19 2016-01-28 Perfect Sourcing Company Ltd Composite Panel For Green Building System
US9976258B2 (en) * 2014-10-03 2018-05-22 E I Du Pont De Nemours And Company Honeycomb core having a high compression strength
KR101700827B1 (ko) 2015-05-28 2017-01-31 코오롱인더스트리 주식회사 적층 아라미드 종이 및 그 제조방법
JP6531186B2 (ja) 2015-05-28 2019-06-12 コーロン インダストリーズ インク アラミド紙、その製造方法及び用途
KR20160139541A (ko) 2015-05-28 2016-12-07 코오롱인더스트리 주식회사 허니콤용 아라미드 페이퍼 및 그의 제조방법
CN104894923B (zh) * 2015-06-02 2017-05-03 无锡统力电工股份有限公司 一种涂胶菱格环氧胶芳纶纸及其制作方法
CN109955565B (zh) * 2017-12-14 2020-09-04 广州金发碳纤维新材料发展有限公司 一种耐高温热塑性蜂窝板材
US11686048B2 (en) * 2018-05-28 2023-06-27 Teijin Aramid B.V. Aramid-based paper with improved properties
CN110181897B (zh) * 2019-07-02 2021-08-06 中车长春轨道客车股份有限公司 一种芳纶纸蜂窝复合制件及其制备方法、应用
CN112726283B (zh) * 2020-12-25 2022-09-06 烟台民士达特种纸业股份有限公司 一种耐高温蜂窝芯材用聚对苯撑苯并二噁唑纤维纸基材料及其制备方法
KR102990718B1 (ko) * 2021-08-03 2026-07-14 듀폰 세이프티 앤드 컨스트럭션, 인크. 쉐딩이 적은 운모 함유 아라미드 종이
TWM666759U (zh) * 2024-08-19 2025-02-21 主原木業股份有限公司 地板減重結構

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US3756908A (en) * 1971-02-26 1973-09-04 Du Pont Synthetic paper structures of aromatic polyamides
US3937989A (en) * 1974-12-06 1976-02-10 Multi-State Devices Ltd. Temperature discrimination apparatus
US4729921A (en) * 1984-10-19 1988-03-08 E. I. Du Pont De Nemours And Company High density para-aramid papers
US4698267A (en) * 1985-09-17 1987-10-06 E. I. Du Pont De Nemours And Company High density para-aramid papers
US5084136A (en) * 1990-02-28 1992-01-28 E. I. Du Pont De Nemours And Company Dispersible aramid pulp
US5026456A (en) * 1990-06-14 1991-06-25 E. I. Du Pont De Nemours And Company Aramid papers containing aramid paper pulp
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
JPH0751636B2 (ja) 1992-06-25 1995-06-05 帝人株式会社 薄葉構造材料
US5314742A (en) * 1993-03-31 1994-05-24 E. I. Du Pont De Nemours And Company Resin impregnated laminate for wiring board applications
TW274068B (enExample) * 1993-05-13 1996-04-11 Ciba Geigy Ag
JPH07184774A (ja) 1993-07-06 1995-07-25 Teijin Ltd アラミドトレイ及びその製造方法
JPH07156318A (ja) * 1993-12-03 1995-06-20 Showa Aircraft Ind Co Ltd ハニカムコア
RU2125131C1 (ru) * 1993-12-21 1999-01-20 Е.И.Дюпон Де Немур Энд Компани Слоистая арамидная бумага с гладкой поверхностью, обладающая высокой прочностью и пригодностью для печатания
US5789059A (en) 1995-04-28 1998-08-04 Showa Aircraft Industry Co., Ltd. Honeycomb core
JP3349062B2 (ja) * 1997-04-08 2002-11-20 昭和飛行機工業株式会社 アラミドハニカム
US5833807A (en) * 1997-04-17 1998-11-10 E. I. Du Pont De Nemours And Company Aramid dispersions and aramid sheets of increased uniformity
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WO2001038081A1 (en) * 1999-11-26 2001-05-31 Sanyo Chemical Industries, Ltd. Honeycomb core material for sandwich structure and method for manufacturing the same
JP3321141B2 (ja) * 2000-04-03 2002-09-03 昭和飛行機工業株式会社 アラミドハニカムおよびその製造方法
US20050230072A1 (en) * 2004-04-16 2005-10-20 Levit Mikhail R Aramid paper blend
JP2006274490A (ja) 2005-03-29 2006-10-12 Toray Ind Inc 高強力高弾性繊維構造体

Also Published As

Publication number Publication date
WO2009070531A1 (en) 2009-06-04
KR20100094543A (ko) 2010-08-26
EP2214900B1 (en) 2013-07-24
JP5368468B2 (ja) 2013-12-18
BRPI0819004A2 (pt) 2017-05-16
JP2011505277A (ja) 2011-02-24
CN101878108A (zh) 2010-11-03
CN101878108B (zh) 2013-11-13
US20090155526A1 (en) 2009-06-18
EP2214900A1 (en) 2010-08-11
US8268434B2 (en) 2012-09-18

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B15K Others concerning applications: alteration of classification

Ipc: D21H 13/26 (2006.01), D21H 15/02 (2006.01), D21H 1

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
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