TW368762B - Spacer for alkaline battery and manufacturing method thereof employing non-woven fabric for keeping from puncturing the spacer by the burrs of electrode board - Google Patents

Spacer for alkaline battery and manufacturing method thereof employing non-woven fabric for keeping from puncturing the spacer by the burrs of electrode board

Info

Publication number
TW368762B
TW368762B TW087105863A TW87105863A TW368762B TW 368762 B TW368762 B TW 368762B TW 087105863 A TW087105863 A TW 087105863A TW 87105863 A TW87105863 A TW 87105863A TW 368762 B TW368762 B TW 368762B
Authority
TW
Taiwan
Prior art keywords
spacer
alkaline battery
burrs
puncturing
woven fabric
Prior art date
Application number
TW087105863A
Other languages
English (en)
Inventor
Masanao Tanaka
Nobutoshi Tokutake
Original Assignee
Japan Vilene Co Ltd
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
Priority claimed from JP13935697A external-priority patent/JP3653375B2/ja
Priority claimed from JP13935597A external-priority patent/JP3784496B2/ja
Application filed by Japan Vilene Co Ltd filed Critical Japan Vilene Co Ltd
Application granted granted Critical
Publication of TW368762B publication Critical patent/TW368762B/zh

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/49—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • D04H5/03—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/06—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by welding-together thermoplastic fibres, filaments, or yarns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/417—Polyolefins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/44—Fibrous material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/446—Composite material consisting of a mixture of organic and inorganic materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/24—Alkaline accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0002—Aqueous electrolytes
    • H01M2300/0014—Alkaline electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H01M50/494—Tensile strength
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Cell Separators (AREA)
  • Nonwoven Fabrics (AREA)
  • Battery Electrode And Active Subsutance (AREA)
TW087105863A 1997-04-17 1998-04-17 Spacer for alkaline battery and manufacturing method thereof employing non-woven fabric for keeping from puncturing the spacer by the burrs of electrode board TW368762B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11514597 1997-04-17
JP13935697A JP3653375B2 (ja) 1997-05-13 1997-05-13 アルカリ電池用セパレータ
JP13935597A JP3784496B2 (ja) 1997-05-13 1997-05-13 アルカリ電池用セパレータ

Publications (1)

Publication Number Publication Date
TW368762B true TW368762B (en) 1999-09-01

Family

ID=27312895

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087105863A TW368762B (en) 1997-04-17 1998-04-17 Spacer for alkaline battery and manufacturing method thereof employing non-woven fabric for keeping from puncturing the spacer by the burrs of electrode board

Country Status (5)

Country Link
US (2) US6037079A (zh)
EP (1) EP0872901B1 (zh)
KR (1) KR100499217B1 (zh)
DE (1) DE69834977T2 (zh)
TW (1) TW368762B (zh)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000215873A (ja) * 1999-01-25 2000-08-04 Sanyo Electric Co Ltd アルカリ蓄電池およびその製造方法
EP1079448B1 (en) * 1999-02-08 2004-05-19 Japan Vilene Company, Ltd. Separator for alkaline battery and production method therefor
JP4659187B2 (ja) 1999-09-14 2011-03-30 日本バイリーン株式会社 電池用セパレータ
US6680144B2 (en) * 1999-10-29 2004-01-20 Kvg Technologies, Inc. Battery separator
US7402539B2 (en) * 2000-08-10 2008-07-22 Japan Vilene Co., Ltd. Battery separator
JPWO2002023663A1 (ja) * 2000-09-11 2004-01-29 松下電器産業株式会社 アルカリ亜鉛二次電池およびその製造方法
JP4203262B2 (ja) * 2002-05-22 2008-12-24 三菱製紙株式会社 アルカリ電池用セパレータ用不織布
US7276166B2 (en) * 2002-11-01 2007-10-02 Kx Industries, Lp Fiber-fiber composites
AR045347A1 (es) 2003-08-08 2005-10-26 Rovcal Inc Celda alcalina de alta capacidad
AR047875A1 (es) 2004-06-04 2006-03-01 Rovcal Inc Celdas alcalinas que presentan alta capacidad
RU2279159C1 (ru) * 2004-10-21 2006-06-27 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") Композиционный материал для сепараторов щелочных аккумуляторных батарей и способ его получения
CN100362676C (zh) * 2005-07-26 2008-01-16 天津工业大学 一种镍氢电池隔膜的制备方法及其制品
CN1983676A (zh) * 2006-01-27 2007-06-20 松下电器产业株式会社 锂离子二次电池及其充电系统
JP5082568B2 (ja) * 2007-04-26 2012-11-28 トヨタ自動車株式会社 蓄電装置
JP4733232B2 (ja) * 2008-03-31 2011-07-27 旭化成イーマテリアルズ株式会社 ポリオレフィン製微多孔膜、及び捲回物
CN101354964B (zh) * 2008-09-02 2012-05-30 上海奥威科技开发有限公司 用于电容器的复合隔膜及其制造方法、以及电容器
US8951677B2 (en) * 2009-06-19 2015-02-10 Toray Battery Separator Film Co., Ltd. Microporous membranes, methods for making such membranes, and the use of such membranes as battery separator film
CN110565237B (zh) * 2019-09-12 2021-04-27 广东蒙泰高新纤维股份有限公司 一种pe-pp桔瓣型复合纺超细旦纤维制造锂电池隔膜的方法
CN111996681B (zh) * 2020-08-24 2022-09-27 中国农业科学院麻类研究所 农用植物纤维膜的生产设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330602A (en) * 1979-07-13 1982-05-18 W. R. Grace & Co. Battery separator
US5213722A (en) * 1987-11-17 1993-05-25 Matsushita Electric Industrial Co., Ltd. Method of making a separator material for a storage battery
JPH0574440A (ja) * 1991-09-11 1993-03-26 Asahi Chem Ind Co Ltd 新規な不織布並びにその製造方法
JP2960284B2 (ja) * 1993-06-01 1999-10-06 大和紡績株式会社 電池セパレータおよびその製造方法
JP3366412B2 (ja) * 1993-09-28 2003-01-14 日本バイリーン株式会社 アルカリ電池用セパレータ
JP3499930B2 (ja) * 1994-10-07 2004-02-23 三洋電機株式会社 アルカリ蓄電池
JP2984561B2 (ja) * 1994-11-15 1999-11-29 大和紡績株式会社 電池セパレータおよびその製造方法
JP3421164B2 (ja) * 1995-03-28 2003-06-30 日本バイリーン株式会社 アルカリ電池用セパレータ
US5645956A (en) * 1995-07-27 1997-07-08 Pall Corporation Resilient battery separator
US6183913B1 (en) * 1996-09-27 2001-02-06 Japan Vilene Company, Ltd. Alkaline battery separator and process for producing the same
US6030727A (en) * 1997-04-03 2000-02-29 Japan Vilene Company, Ltd. Alkaline battery separator and process for producing the same

Also Published As

Publication number Publication date
KR19980081465A (ko) 1998-11-25
US6037079A (en) 2000-03-14
DE69834977D1 (de) 2006-08-03
EP0872901A2 (en) 1998-10-21
EP0872901B1 (en) 2006-06-21
EP0872901A3 (en) 1999-09-01
DE69834977T2 (de) 2007-06-06
US20010008733A1 (en) 2001-07-19
KR100499217B1 (ko) 2005-09-09
US6355375B2 (en) 2002-03-12

Similar Documents

Publication Publication Date Title
TW368762B (en) Spacer for alkaline battery and manufacturing method thereof employing non-woven fabric for keeping from puncturing the spacer by the burrs of electrode board
ATE283387T1 (de) Verbessertes vlies mit nicht-symmetrischer bindungskonfiguration
EP0088191A3 (en) Polyester fibrefill blend
EP1228270A4 (en) IMPROVED NON-WOVEN FABRIC WITH HIGH ELONGATION IN THE CROSS SENSE (CD), AND METHOD FOR THE PRODUCTION THEREOF
DE60032735D1 (de) Dauerhafte hydrophile, nichtgewebte matte für wiederaufladbare alkalische batterien
ATE381250T1 (de) Leiterplatte und verfahren zu deren herstellung
TW339377B (en) Flexible nonwoven fabric and laminate thereof
ATE69473T1 (de) Nichtgewebter nasspressfilz und verfahren zu seiner herstellung.
ES8504289A1 (es) Metodo de estampar con dibujos lamina no tejida de fibras para obtener una tela.
EP0834938A3 (en) Alkaline battery separator and process for producing the same
DE3584119D1 (de) Kohlenstoffasern mit sehr hoher zugfestigkeit.
EP0146340A3 (en) Batt-on-mesh press felt having increased abrasion resistance, batt retention and dimensional stability
EP1158832A4 (en) SPEAKER MEMBRANE TRIM, SPEAKER MEMBRANE AND SPEAKER
FI942890A0 (fi) Kuituja, jotka soveltuvat sellaisten nonwovenkankaiden valmistukseen, joilla on parantuneet lujuus- ja pehmeysominaisuudet
ATE465289T1 (de) Verbundvliesstoff mit endlosfilamenten und kurzfasern
ATE280038T1 (de) Vakuumgeformte, beschichtete faserbahn
CA2288802A1 (en) Multilayer porous fabric
MXPA05007933A (es) Estructura fibrosa que comprende fibras celulosicas y sinteticas y metodo para elaboracion de las mismas.
CA2155421A1 (en) Patterned non-woven fabrics of improved tensile strength
KR970043567A (ko) 인공피혁의 제조방법
UA26333C2 (uk) Фільтрувальhий матеріал
KR900015916A (ko) 적층판
TH29178B (th) ผ้าที่มีคุณสมบัติเป็นกำแพงกันที่ทำด้วยเส้นใยละเอียด ที่มีอำนาจปกคลุมและความแข็งแรงที่ถูกปรับปรุงและวิธีการผลิตที่เหมือนกัน
TH32185A (th) วัสดุที่เป็นระลอกซึ่งให้ประสิทธิภาพอย่างสูงสำหรับชิ้นส่วนดูดซับ
ITFI930054A0 (it) Un manufatto in tessuto-non-tessuto agugliato con fibre e legante di anforaggio a base di polipropilene, e suo procedimento di realizzazione.

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees