EP0896562A1 - Tissu pour airbag - Google Patents

Tissu pour airbag

Info

Publication number
EP0896562A1
EP0896562A1 EP96926170A EP96926170A EP0896562A1 EP 0896562 A1 EP0896562 A1 EP 0896562A1 EP 96926170 A EP96926170 A EP 96926170A EP 96926170 A EP96926170 A EP 96926170A EP 0896562 A1 EP0896562 A1 EP 0896562A1
Authority
EP
European Patent Office
Prior art keywords
fibers
layer
bonded
fabric
layers
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.)
Ceased
Application number
EP96926170A
Other languages
German (de)
English (en)
Inventor
Donald M. Courteau, Sr.
Paul E. Hansen
Mark R. Holzer
Robert H. Lowe, Jr.
John J. Rogers
Kristin M. Schroeder
Miroslav Tochacek
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of EP0896562A1 publication Critical patent/EP0896562A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags

Definitions

  • the present invention relates to composite fabrics suitable for use in inflatable air bag systems.
  • Air bag systems include three major components: (1) a crash sensor; (2) an inflation source; and (3) an air bag or cushion.
  • the crash sensor detects a collision by sensing rapid deceleration or by other means.
  • the sensor generates a signal used to trigger the inflation source, e.g., bottled gas or a gas- generating pyrotechnic device.
  • the gas is directed through vents into the air bag, causing rapid inflation of the bag.
  • the inflated air bag cushions the occupants' impact by pneumatic damping effects from the air bag vents.
  • fabrics used to construct the air bag must meet a variety of design criteria.
  • the air bag fabric should have a low permeability to allow for rapid inflation.
  • the air bag fabric should be puncture and tear resistant.
  • the air bag fabric should be relatively inflammable in view of the hot gases and hot particulate material generated by a pyrotechnic inflation source.
  • the outer surface of the air bag must have a low abrasive quality so as not to injure the occupant upon impact with the deployed air bag.
  • Other, more general, criteria also influence air bag design.
  • the air bag must be able to deploy quickly. Also, a smaller pyrotechnic inflation source is desirable. Therefore, the air bag fabric should be lightweight and have a high pack density. These criteria are particularly important in driver-side systems that are incorporated into the steering wheel.
  • the air bag fabric must have long-term stability (e.g., at least ten years or more) in a variety of environmental conditions in view of the fact that the cars are being kept in service for longer periods. Also, given today's highly competitive motor vehicle market, the fabric should be inexpensive.
  • the most commonly used air bag fabric in the U.S. is a woven nylon 6 or nylon 6,6 fabric. All or part of the fabric may be coated, depending on the application (i.e., driver, front passenger, side, etc.) .
  • the nylon fabric must be cut and sewn to form the bag. The time and labor required to sew the bag increases the overall price of the air bag.
  • Other fabrics meet some of the design criteria, but generally do not provide a good balance of many of the design criteria for air bags. For example, cotton fabric may lose strength over longer periods, particularly in a humid environment. Some glass fibers may be brittle, resulting in excessive breakage of the fibers upon bending. Ballistic resistant fibers (e.g., Kevlar®) tend to be stiff, as well as expensive.
  • a fabric suitable for use in an air bag is provided.
  • the fabric may be used to form all or part of the air bag.
  • the fabric includes a central layer having first and second opposed major surfaces.
  • a plurality of substantially parallel, spaced apart fibers are bonded to each of the first and second opposed surfaces.
  • the fibers bonded to the first opposed surface are oriented at an angle relative to the fibers of the second opposed surface of between about forty-five and about ninety degrees.
  • the central layer comprises a thermoplastic film.
  • the thermoplastic film is selected from the group comprising polyesters, polyolefins, polyurethanes, polyamides, polyvinyl chlorides, polyvinyldiene chlorides, fluoropolymers, block copolymer elastomers, polyester elastomers, and combinations thereof.
  • the central layer comprises a thermally bondable non-woven web, including a blown microfiber, spun bond, spun lace, air laid, or carded non-woven web.
  • the fibers are high-tenacity monofilament or multifilament fibers selected from the group comprising polyester fibers, polyamide fibers, polyolefin fibers, aramid fibers, and combinations thereof.
  • the fibers have a denier preferably in the range of about 200 to about 900, and have a tenacity preferably of about 8g/denier or greater.
  • the fibers are thermo echanically bonded to the first and second opposed surfaces.
  • the fibers are bonded to the first and second opposed surfaces by an adhesive applied to the first and second surfaces, the fibers, or both.
  • the fibers are spaced at a density of about 7 to about 16 fibers per centimeter.
  • the fabric further includes a first layer bonded to the fibers and the first opposed surface, and a second layer bonded to the fibers and the second opposed surface.
  • the first and second layers independently, may comprise a thermoplastic film, non-woven web, or a coating.
  • the fabric further includes at least one laminate layer bonded to the first sheet. In another embodiment, the fabric also includes at least one laminate layer bonded to the second sheet.
  • a material suitable for use in an inflatable restraint includes a plurality of reinforced layers.
  • the layers comprising a plurality of substantially parallel fibers bonded to a layer.
  • the fibers of adjacent reinforced layers are oriented relative to each other at an angle of between about 45 and about 90 degrees.
  • the fabric may be cut and sewn or thermo ⁇ mechanically bonded to form all or part of the air bag.
  • Thermomechanical bonding is generally faster and more cost-effective than sewing.
  • By selectively choosing the materials for the different components of the fabric one can customize the characteristics of the fabric, including the strength profile.
  • By selecting the number of laminate layers, layer materials, denier of the fibers, tenacity of the fibers, and number of fibers a variety of strength profiles may be generated. These strength profiles can be matched with the needs of a particular air bag application or matched with specific components of an air bag to construct an air bag having desirable characteristics.
  • Figure 1 is an exploded plan view of a fabric according to one embodiment of the invention.
  • Figure 2 is an exploded plan view of a fabric according to another embodiment of the invention.
  • Figures 3A and 3B provide an illustration of the panels used to make a driver's side air bag using the fabric of the present invention.
  • Fabric 10 includes a central layer 12.
  • Central layer 12 includes opposed major surfaces 14, 16.
  • First and second layers 22 are positioned adjacent fibers 18 opposite central layer 12, and are bonded to the plurality of adjacent fibers 18 and to the opposed surfaces 14, 16, respectively, of central layer 12.
  • Additional laminate layers 23 of fibers 18 bonded to layers 22 may be added to form fabric 10.
  • the inner surface 24 of each layer 22 is bonded to an adjacent plurality of fibers 18 and to the outer surface 26 of the adjacent layer 22 closer to central layer 12.
  • Central layer 12 is formed from a thermally bondable non-woven web or a thermoplastic film.
  • the non-woven web may be selected from a variety of materials, including blown microfiber webs, spun bond webs, spun lace webs, air laid webs, and carded webs.
  • the thermoplastic film may be selected from a variety of materials, including polyester, polyolefin, polyurethane, polyamide, PVC, fluoropolymer, block copolymer elastomer, and polyester elastomer films.
  • central layer 12 may be formed from multi-layer films or film/non-woven laminates. The thickness of central layer 12 is selected for the particular application.
  • central layer 12 thicknesses may range from about .01 mm to about .05 mm, preferably about .01 mm to about .03 mm.
  • the overall permeability of fabric 10 must be considered. For example, if a less permeable non-woven web is selected for central layer 12, one or more of layers 22 may need to be a thermoplastic film in order to achieve the desired permeability for fabric 10.
  • the fibers 18 bonded to opposed major surfaces 14, 16 are oriented relative to each other at an angle of about forty-five to about ninety degrees, depending on the desired strength characteristics of the fabric 10. In the embodiment of Figure 1, the fibers 18 bonded to opposed major surfaces 14, 16 are oriented at an angle of about ninety degrees relative to each other.
  • the fibers 18 are bonded to the respective opposed surfaces 14, 16 by thermomechanical methods or by adhesives.
  • Fibers 18 are selected from high tenacity monofilament or multifilament fibers, e.g., polyester fibers of 220 denier and having 8.3g/denier tenacity.
  • the fibers 18 may have a tenacity of about 8g/denier and above.
  • Fiber materials include polyester, polyamide, polyolefin, and aramid fibers, or combinations thereof.
  • the fibers may have a denier in the range of about 200 to 900.
  • fibers having a denier of 220, 440, 630, or 840 may be used.
  • fibers having a lower denier and higher tenacity are used.
  • Fibers having a higher denier may also be used.
  • a combination of fibers having different denier values may be used.
  • Layers 22 may be formed from the materials or a combination of the materials described above for central layer 12. Also, layers 22 may be formed by a coating of film-forming materials in solution, such as thermoplastics, adhesives, and hot-mel
  • the number of laminate layers 23 of fibers 18 and layers 22 is selected to obtain the desired characteristics of the fabric 10.
  • the fibers 18 of adjacent laminate layers are oriented relative to each other at an angle of about forty-five to about ninety degrees.
  • the number of laminate layers 23 added on top of the opposed major surfaces need not be the same.
  • fabric 10 may include 3 laminate layers on top of the first opposed major surface 14 and two laminate layers on top of opposed major surface 16. Additionally, a layer 22 or fibers 18 may be substituted for one or more laminate layers 23. Also, the fibers bonded with each of the various layers 12 and 22 may be selected from different materials, denier, or tenacity.
  • fabric 10 includes a plurality of reinforced layers 23, as shown in Figure 2.
  • reinforced layers 23 include a plurality of fibers 18 bonded to a layer 22, forming a unidirectional, reinforced laminate.
  • the two innermost reinforced layers 30 are positioned so that the fibers 18 of the reinforced layers 30 are positioned immediately adjacent each other.
  • the layers 22 of reinforced layers 30 are bonded to the two layers of fibers 18 and to each other.
  • the fibers of adjacent reinforced layers are positioned relative to each other at an angle of between about forty-five to about ninety degrees.
  • the same materials or combinations of materials discussed above for fibers 18 and layers 22 may be used.
  • a laminate layer 23 is formed by laying fibers 18 on layer 22. Fibers 18 may be hand-laid or delivered by beam or creel. Typically, a comb is used to keep fibers 18 aligned generally parallel and with a predetermined interfiber distance, e.g., 7 to 16 fibers per centimeter.
  • layer 22 and fibers 18 are formed into a unidirectional, laminate layer 23 by thermomechanical means, e.g. , heat and pressure.
  • an adhesive may be applied to the fibers 18, the layer 22, or both, in order to bond the two materials and form a unidirectional, laminate layer 23.
  • the newly formed laminate layer 23 is wound into large rolls.
  • Laminate layer 23 may be formed by other means.
  • layer 22 may be extruded directly onto fibers 18 in the case where layer 22 is a thermoplastic film.
  • at least two laminate layers 23 are oriented relative to each other so that the respective fibers of one laminate layer are oriented at an angle with respect to the fibers of adjacent laminate layers of between about forty-five to about ninety degrees.
  • the laminate layers 23 are positioned so that the two exposed outer surfaces of fabric 10 have a relatively smooth, non-abrasive impact surface in order to reduce the risk of secondary injury to the vehicle occupant when the air bag is deployed. Once the desired number of laminate layers 23 are positioned together, the laminate layers are thermomechanically or adhesively bonded to form composite, multidirectional laminate fabric 10.
  • the number of laminate layers 23 and orientation of the fibers 18 provide the general strength characteristic of the fabric 10.
  • a commonly used fabric strength test is the Mullen burst strength test (as determined by ASTM D3786) .
  • Suitable fabrics 10 exhibit a Mullen burst strength of at least about 1.8 MPa, preferably at least about 2.4 MPa, and more preferably at least about 3.4 MPa.
  • the orientation of the fibers 18 in each laminate layer 23 may be adjusted to provide strength in a specific orientation for specific portions of the air bag, thereby providing an overall stronger air bag.
  • drivers-side air bags are made in circular or square/rectangular shapes. As shown in Figures 3A and 3B, a circular air bag is fabricated from panels 40, 41.
  • a circular inflation aperture 42 is cut into panel 41 to allow for inflation. Holes 43 corresponding to the positions of the bolts for a metal mounting flange of the inflation unit are formed around the circumference of the inflation aperture 42.
  • the panels 40, 41 are joined by either stitching or by thermomechanical methods. Thermomechanical bonding can be performed relatively quickly and easily. Depending on the application, the thermomechanical bond may be augmented by stitching or other means.
  • the two circular panels 40, 41 may also be sewn together by various stitching patterns and techniques. Typically, a sewn bag is inverted through the inflation aperture, to position the perimeter seam in the interior of the bag.
  • the fabric may also be cut to form square and rectangular air bags from single sheets of fabric.
  • fabric 10 may be constructed with characteristics that meet the localized performance characteristics of the air bag.
  • Fabrics having selected characteristics may be formed by selecting different sheet materials and thicknesses, fibers materials and densities, orientation of fibers, and number of layers.
  • Example 1 The invention is illustrated by means of the following examples.
  • Example 1 The invention is illustrated by means of the following examples.
  • Unidirectional laminates of fibers on film were made in the following manner. Polyester fibers of 220 denier, 8.3 g/denier tenacity, (1/220/50 R02-68, DuPont, Wilmington, DE) were laminated to a spunbond web of 2.4 dtex polyester fibers (#2250 from Reemay Corp., Old Hickory, TN) having a basis wt. of 17g/m 2 using a single-nip calendar available from Webex, Inc. , Neenah, WI. Both calendar rolls were steel and were maintained at 150 C. The lamination pressure was 21.8 kN/m and the lamination speed was approximately 1 meter per minute.
  • the fibers were delivered to the nip from a beam and laid generally parallel on the web with the interfiber distance being maintained constant via a comb providing 11 fibers per cm.
  • Composite, multidirectional laminates were subsequently formed from the unidirectional laminate. Unidirectional laminates were laid up such that the laminated fibers formed a 90 orientation with one another with the fiber side of the unidirectional laminates facing the center of the composite laminates. These lay-ups were subsequently bonded by passing them through the calendar nip at 150 C, 21.8 kN/m and 3.3 m/min. Multidirectional laminates of 2, 3, and 4 layers were formed in this manner. The respective thickness' were 0.203 mm, 0.279 mm, and 0.343 mm and the Mullen burst strengths (as measured by ASTM D3786) of 1.8 MPa, 2.6 MPa, 2.6 MPa, respectively.
  • Unidirectional laminates of fibers on film were made in the following manner. Polyester fibers of 220 denier, 8.3 g/denier tenacity, (1/220/50 R02-68, DuPont, Wilmington, DE) were laminated to a sheet of 0.0125 mm thick polyethylene film (SF-40 SP ,CT Films, Chippewa Falls, WI) by spraying the film with 3M #6091 spray Remount Repositionable Adhesive, hand laying the fibers onto the film, and subsequently allowing the adhesive to dry. The interfiber distance was maintained constant via a comb allowing 16 fibers per cm.
  • Polyester fibers of 220 denier, 8.3 g/denier tenacity, (1/220/50 R02-68, DuPont, Wilmington, DE) were laminated to sheets of 3M #927 transfer tape by aligning the fibers in a comb, and pressing the fibers into the adhesive. The interfiber distance was maintained constant via a comb allowing 16 fibers per cm.
  • Example 4 Unidirectional laminates of fibers on film were made in the following manner. A silicone coated, paper web was coated with a moisture curing, polyurethane adhesive (3M TS-230) . The open time of the adhesive was long enough that the adhesive was still tacky when polyester fibers of 220 denier, 8.3 g/denier tenacity, (1/220/50 R02-68, DuPont, Wilmington, DE) were delivered to the web. With subsequent curing, the adhesive cross-linked and crystallized, bonding the fibers to the adhesive.
  • 3M TS-230 polyurethane adhesive
  • Lamination was accomplished with a three roll, double-nip calendar.
  • the fibers were delivered to the nip from a creel and laid generally parallel on the web with the interfiber distance being maintained via a comb allowing 16 fibers per cm.
  • Composite, multidirectional laminates were subsequently formed from the unidirectional laminate. Unidirectional laminates were laid up such that the laminated fibers formed a 90 orientation with one another with the fiber side of the unidirectional laminates facing the center of the composite laminates.
  • Unidirectional laminates of fibers on film were made in the following manner. Polyester fibers of 440 denier, 8.3 g/denier tenacity, (1/440/50 R02-68, DuPont, Wilmington, DE) from were laminated to 0.05 mm thick continuous web of polyurethane film (PS8010 from Deerfield Urethane, South Deerfield, MA) using a single-nip calendar.
  • the top calendar roll was silicone rubber and the bottom roll was steel and both were maintained at 150°C while the lamination speed was approximately 1 meter per minute.
  • the fibers were delivered to the nip from a series of four parallel beams and laid essentially parallel on the web with the interfiber distance being maintained constant via a comb allowing 13 fibers per cm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Air Bags (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

Ce tissu (10) approprié pour former l'ensemble ou une partie d'un airbag comprend une pluralité de couches renforcées (23) liées entre elles pour former une couche unitaire. Ces couches (23) peuvent être formées par des stratifiés unidirectionnels de fibres (18) généralement parallèles liées à un matériau, par ex. un film thermoplastique, une bande de non-tissé, ou un revêtement. Les parties du tissu (10) peuvent être cousues ou liées thermomécaniquement pour constituer l'airbag.
EP96926170A 1996-04-05 1996-07-30 Tissu pour airbag Ceased EP0896562A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US62843296A 1996-04-05 1996-04-05
US628432 1996-04-05
PCT/US1996/012429 WO1997037874A1 (fr) 1996-04-05 1996-07-30 Tissu pour airbag

Publications (1)

Publication Number Publication Date
EP0896562A1 true EP0896562A1 (fr) 1999-02-17

Family

ID=24518858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96926170A Ceased EP0896562A1 (fr) 1996-04-05 1996-07-30 Tissu pour airbag

Country Status (7)

Country Link
EP (1) EP0896562A1 (fr)
JP (1) JP2000508270A (fr)
KR (1) KR20000005141A (fr)
CN (1) CN1216025A (fr)
AU (1) AU6641096A (fr)
CA (1) CA2249371A1 (fr)
WO (1) WO1997037874A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11214895B2 (en) 2015-11-06 2022-01-04 Inv Performance Materials, Llc Low permeability and high strength fabric and methods of making the same
US11634841B2 (en) 2017-05-02 2023-04-25 Inv Performance Materials, Llc Low permeability and high strength woven fabric and methods of making the same
US11708045B2 (en) 2017-09-29 2023-07-25 Inv Performance Materials, Llc Airbags and methods for production of airbags

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19731797C2 (de) * 1997-07-24 2001-05-31 Trw Automotive Safety Sys Gmbh Hitzebeständiges Airbaggewebe
US5945359A (en) * 1997-08-18 1999-08-31 Milliken & Company Weft inserted warp knit air bag fabric
US6402187B1 (en) * 1998-10-06 2002-06-11 Milliken & Company Airbag structure
US20020122908A1 (en) 2000-08-30 2002-09-05 Shulong Li Abrasion and/or puncture resistant fabrics, airbag cushions, and methods
EP1698523A3 (fr) * 2000-08-30 2008-04-02 Milliken & Company Tissus résistant à l'abraison et/ ou à la perforation, coussins gonflables de sécurité et procédés
US6672617B1 (en) 2000-09-08 2004-01-06 Milliken & Company Yarn, airbag and method
US6742805B2 (en) * 2001-05-02 2004-06-01 Trw Vehicle Safety Systems Inc. Multi-layered inflatable curtain
NL1026809C2 (nl) * 2004-08-09 2006-02-13 Beiler Beheer Bv Werkwijze en inrichting voor het vormen van een langsvezelbaan en voor het vormen van een dwarsvezelbaan en voor het vormen van een kruisvezelbaan en voor het vormen van een airbag.
JP2006123696A (ja) * 2004-10-28 2006-05-18 Takata Corp エアバッグ及びエアバッグ装置
WO2006086247A2 (fr) * 2005-02-07 2006-08-17 Safety Components Fabric Technologies, Inc. Airbag pour vehicule construit a partir d'un film composite
NL1028977C2 (nl) * 2005-05-04 2006-11-07 Beiler Beheer Bv Werkwijze en inrichting voor het vervaardigen van een samengestelde baan op basis van ten minste twee banen.
US7803724B2 (en) 2006-06-02 2010-09-28 Honeywell International Inc. Multilayer airbag using non-woven fabric and reinforced scrim
JP2010143208A (ja) * 2008-12-22 2010-07-01 Toyota Boshoku Corp エアバッグ基布並びにそれを用いたエアバッグ及びエアバッグの製造方法
KR20100117527A (ko) * 2009-04-24 2010-11-03 주식회사 코오롱 에어백 가스 주입용 튜브형 직물 부재 및 그의 제조방법
WO2012053864A2 (fr) * 2010-10-21 2012-04-26 코오롱인더스트리 주식회사 Coussin de sécurité gonflable et son procédé de fabrication
CN103384698B (zh) 2011-01-03 2017-01-18 陶氏环球技术有限责任公司 增强微毛细管膜和泡沫体
CN103314042B (zh) * 2011-01-03 2017-08-08 陶氏环球技术有限责任公司 包含功能填料材料的微毛细管膜和泡沫体
JP5278480B2 (ja) * 2011-04-04 2013-09-04 東洋紡株式会社 ポリアミド系樹脂組成物の製造方法
CN105026639B (zh) * 2013-03-19 2018-04-20 东洋纺株式会社 安全气囊用织物
US10655248B2 (en) 2014-06-24 2020-05-19 Kolon Industries, Inc. Method of preparing polyester fabric for airbag
CN108698362A (zh) * 2016-03-02 2018-10-23 空中巡航舰有限责任公司 非织造柔性复合物
CN107928000A (zh) * 2017-12-31 2018-04-20 王淑雅 一种填充立体纤维织物的鞋用气囊垫
CN114630788A (zh) * 2019-06-27 2022-06-14 米歇尔·欧克立 低成本的粘滞阻力减小包层

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364076A (en) * 1972-08-29 1974-08-21 British Aircraft Corp Ltd Structural materials
US4933231A (en) * 1989-02-06 1990-06-12 Mcguire-Nicholas Company, Inc. Abrasion resistant, high strength composite padded fabric material
DE69008723T2 (de) * 1989-06-16 1994-12-15 Gore & Ass Gaskissen aufprallschutzvorrichtung und dazugehöriger schichtstoff sowie prozess zur herstellung dieses schichtstoffs.
JP3014127B2 (ja) * 1990-08-16 2000-02-28 旭化成工業株式会社 積層布帛
JPH04228648A (ja) * 1990-12-27 1992-08-18 Bridgestone Corp エアバッグ
JPH05278545A (ja) * 1992-04-02 1993-10-26 Toyo Tire & Rubber Co Ltd エアーバッグ用基布及び該基布を用いたエアーバッグ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9737874A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11214895B2 (en) 2015-11-06 2022-01-04 Inv Performance Materials, Llc Low permeability and high strength fabric and methods of making the same
US11634841B2 (en) 2017-05-02 2023-04-25 Inv Performance Materials, Llc Low permeability and high strength woven fabric and methods of making the same
US11708045B2 (en) 2017-09-29 2023-07-25 Inv Performance Materials, Llc Airbags and methods for production of airbags

Also Published As

Publication number Publication date
CA2249371A1 (fr) 1997-10-16
WO1997037874A1 (fr) 1997-10-16
CN1216025A (zh) 1999-05-05
KR20000005141A (ko) 2000-01-25
JP2000508270A (ja) 2000-07-04
AU6641096A (en) 1997-10-29

Similar Documents

Publication Publication Date Title
WO1997037874A1 (fr) Tissu pour airbag
EP0496894B1 (fr) Coussin pneumatique
EP1226033B2 (fr) Dispositif de protection pneumatique possedant un tres faible facteur de couverture
US6734125B2 (en) Laminated multi-denier mixed fabrics for use in inflatable vehicle restraint systems
US5945359A (en) Weft inserted warp knit air bag fabric
US6740607B2 (en) Substrate with stretch and heat sealing properties to make a multidirectional restraint module design
KR19990008018A (ko) 낮은 통기율의 팽창 가능한 억제용 직물
US20060192373A1 (en) Vehicle air bag constructed from a composite film
US6632754B1 (en) Unbalanced twill weave fabric and airbag device
KR102111608B1 (ko) 에어백 원단 및 그 제조방법
JPH02114035A (ja) 車両用エアバッグ基布
JP2947179B2 (ja) エアバッグ用基布およびその製造方法およびエアバッグ
JPH10273002A (ja) エアバッグ用基布およびエアバッグ
JP3461517B2 (ja) エアバッグ
JPH037337A (ja) エアーバック用基布およびエアーバック
JPH07110598B2 (ja) エアーバッグ
JPH0310946A (ja) エアーバッグ
JPH04100753A (ja) 通気性コントロール膜付エアーバッグ
JP3139763B2 (ja) 乗員保護用エアーバッグ
JPH08104194A (ja) エアバッグ
JPH0550890A (ja) 基布排気式エアバツグ
JPH0456650A (ja) エアーバッグ
JPH0443144A (ja) エアーバッグの構造
JPH04146839A (ja) エアーバッグ用袋体
JPH04201648A (ja) エアバッグ

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980911

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT SE

17Q First examination report despatched

Effective date: 19990222

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20000221