CA2801482A1 - Fabric for airbag, using polyethylene terephthalate fiber with excellent heat resistance - Google Patents
Fabric for airbag, using polyethylene terephthalate fiber with excellent heat resistance Download PDFInfo
- Publication number
- CA2801482A1 CA2801482A1 CA2801482A CA2801482A CA2801482A1 CA 2801482 A1 CA2801482 A1 CA 2801482A1 CA 2801482 A CA2801482 A CA 2801482A CA 2801482 A CA2801482 A CA 2801482A CA 2801482 A1 CA2801482 A1 CA 2801482A1
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- CA
- Canada
- Prior art keywords
- fabric
- airbag
- polyethylene terephthalate
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- terephthalate fiber
- 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.)
- Granted
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- 239000004744 fabric Substances 0.000 title claims abstract description 113
- -1 polyethylene terephthalate Polymers 0.000 title claims abstract description 63
- 229920000139 polyethylene terephthalate Polymers 0.000 title claims abstract description 50
- 239000005020 polyethylene terephthalate Substances 0.000 title claims abstract description 50
- 239000000835 fiber Substances 0.000 title claims abstract description 37
- 238000009987 spinning Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 229920002302 Nylon 6,6 Polymers 0.000 abstract description 6
- 230000000052 comparative effect Effects 0.000 description 21
- 238000000034 method Methods 0.000 description 16
- 238000011981 development test Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 238000009991 scouring Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 229920001634 Copolyester Polymers 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- LQINPQOSBLVJBS-UHFFFAOYSA-N 1,1,2,2-tetrachloroethanol Chemical compound OC(Cl)(Cl)C(Cl)Cl LQINPQOSBLVJBS-UHFFFAOYSA-N 0.000 description 1
- 241000845082 Panama Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-L isophthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC(C([O-])=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000005487 naphthalate group Chemical group 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/02—Inflatable articles
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/513—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads heat-resistant or fireproof
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Woven Fabrics (AREA)
- Air Bags (AREA)
- Artificial Filaments (AREA)
Abstract
The present invention relates to fabric for an airbag, using a polyethylene terephthalate fiber, and more specifically, to fabric for an airbag with improved heat resistance and instantaneous thermal deformation prepared by preparing a polyethylene terephthalate fiber for an airbag by controlling the strength and elongation of a polyethylene terephthalate fiber and using the same, to replace known fabric for an airbag using yarns made of Nylon 66. The fabric for an airbag of the present invention, comprising a polyethylene terephthalate fiber prepared by spinning polyethylene terephthalate chips having an intrinsic viscosity of 0.8-1.3 dl/g, has a heat resistance of 0.45-0.65 seconds at 450 ? and a heat resistance of 0.75-1.0 seconds at 350 ?.
Description
:J DESCRIPTION I
!Invention Title':I
FABRIC FOR AIRBAG, USING POLYL-I-I-IYLI NE `ITERI;PI-I"I'1IALATE FIBER
WITH EXCELLENT HEAT RESISTANCE
lTechnical Field" l The present invention relates to a fabric for an airbag using a polyethylene terephthalate fiber, and particularly, to a fabric for an airbag having enhanced thermal resistance and instantaneous thermal strain rate, which is manufactured using a polyethylene terephthalate fiber for an airbag manufactured by controlling the strength and elongation of the polyethylene terephthalate fiber to replace a conventional fabric for an airbag using a yarn formed of nylon 66.
lBackground Art "I
An airbag requires characteristics of low air permeability to easily rupture in a car crash, and energy absorbability to prevent damage to and bursting of the airbag itself. In addition, to be more easily stored, characteristics relating to foldability of a fabric itself are required. As a suitable fiber having the above-described characteristics, nylon 66 has generally been used. However, recently, in order to save on cost, attention on fibers other than nylon 66 has been increasing.
As a fiber capable of being used for an airbag, polyethylene terephthalate may be used. However, when polyethylene terephthalate is used as a yarn for an airbag, seams rupture during airbag cushion module tests. To solve this problem, it is important to use a polyethylene terephthalate yarn that does not degrade the energy absorbability of an airbag. In addition, it is necessary to improve flexibility of the fabric for an airbag using a polyethylene terephthalate fiber to be easily stored.
7Uisclosure` I
!Technical Problem' The present invention is directed to providing a fabric for an airbag using polyethylene terephthalate, which has excellent energy absorbability resulting in fewer ruptures of outer scams during an airbag cushion development tests, and is more easily stored.
W Technical Solution'.]
According to an exemplary embodiment of the present invention, a fabric for an airbag including a polyethylene terephthalate fiber manufactured by spinning a polyethylene terephthalate chip having an intrinsic viscosity of 0.8 to 1.3 dl/g is provided. The fabric for an airbag has a thermal resistance of 0.45 to 0.65 seconds at 350 C, which is calculated by the following Equation.
[Equation 1 Thermal Resistance (sec) of Fabric ='1",-'12 In Equation I, Tr is the time in which a steel rod heated to 350 C falls from cm above the fabric through the fabric, and T2 is the time in which the same steel rod falls from the same height.
According to another exemplary embodiment of the present invention, a fabric for an airbag including a polyethylene terephthalate fiber manufactured by spinning a polyethylene terephthalate chip having an intrinsic viscosity of 0.8 to 1.3 dl/g is provided. The fabric for an airbag has a thermal resistance of 0.75 to 1.0 seconds at 450 C, which is calculated by the following Equation, and an instantaneous thermal strain rate of 1.0 to 5.0%.
[Equation 21 Thermal Resistance (sec) of Fabric = T3--'f4
!Invention Title':I
FABRIC FOR AIRBAG, USING POLYL-I-I-IYLI NE `ITERI;PI-I"I'1IALATE FIBER
WITH EXCELLENT HEAT RESISTANCE
lTechnical Field" l The present invention relates to a fabric for an airbag using a polyethylene terephthalate fiber, and particularly, to a fabric for an airbag having enhanced thermal resistance and instantaneous thermal strain rate, which is manufactured using a polyethylene terephthalate fiber for an airbag manufactured by controlling the strength and elongation of the polyethylene terephthalate fiber to replace a conventional fabric for an airbag using a yarn formed of nylon 66.
lBackground Art "I
An airbag requires characteristics of low air permeability to easily rupture in a car crash, and energy absorbability to prevent damage to and bursting of the airbag itself. In addition, to be more easily stored, characteristics relating to foldability of a fabric itself are required. As a suitable fiber having the above-described characteristics, nylon 66 has generally been used. However, recently, in order to save on cost, attention on fibers other than nylon 66 has been increasing.
As a fiber capable of being used for an airbag, polyethylene terephthalate may be used. However, when polyethylene terephthalate is used as a yarn for an airbag, seams rupture during airbag cushion module tests. To solve this problem, it is important to use a polyethylene terephthalate yarn that does not degrade the energy absorbability of an airbag. In addition, it is necessary to improve flexibility of the fabric for an airbag using a polyethylene terephthalate fiber to be easily stored.
7Uisclosure` I
!Technical Problem' The present invention is directed to providing a fabric for an airbag using polyethylene terephthalate, which has excellent energy absorbability resulting in fewer ruptures of outer scams during an airbag cushion development tests, and is more easily stored.
W Technical Solution'.]
According to an exemplary embodiment of the present invention, a fabric for an airbag including a polyethylene terephthalate fiber manufactured by spinning a polyethylene terephthalate chip having an intrinsic viscosity of 0.8 to 1.3 dl/g is provided. The fabric for an airbag has a thermal resistance of 0.45 to 0.65 seconds at 350 C, which is calculated by the following Equation.
[Equation 1 Thermal Resistance (sec) of Fabric ='1",-'12 In Equation I, Tr is the time in which a steel rod heated to 350 C falls from cm above the fabric through the fabric, and T2 is the time in which the same steel rod falls from the same height.
According to another exemplary embodiment of the present invention, a fabric for an airbag including a polyethylene terephthalate fiber manufactured by spinning a polyethylene terephthalate chip having an intrinsic viscosity of 0.8 to 1.3 dl/g is provided. The fabric for an airbag has a thermal resistance of 0.75 to 1.0 seconds at 450 C, which is calculated by the following Equation, and an instantaneous thermal strain rate of 1.0 to 5.0%.
[Equation 21 Thermal Resistance (sec) of Fabric = T3--'f4
2 In Equation 2, T3 is the time that a steel rod heated to 450 C falls from 10 cm above the fabric through the fabric, and T4 is the time that the same steel rod falls from the same height.
According to still another exemplary embodiment of the present invention, the fabric for an airbag has a stiffness of 5,0 to 15.0 N.
According to yet another exemplary embodiment of the present invention, the polyethylene terephthalate fiber has a strength of 8.0 to 11.0 g/d, and an elongation of 15 to 30% at room temperature.
According to yet another exemplary embodiment of the present invention, the polyethylene terephthalate fiber has an instantaneous thermal strain rate of 1.0 to 5.0%, and a filament size of 4.5 deniers or less.
': lAdvantageous Effectsc-1 The present invention provides a polyethylene terephthalate fabric for an airbag, which overcomes the lack of flexibility, which is a disadvantage of a conventional fabric for an airbag, and has better thermal resistance. As a result, an airbag module manufactured using the fabric for an airbag can be more easily stored and rarely bursts due to pressure and heat instantaneously applied by a high temperature expanding gas during airbag development tests.
r iBest Models"]
The present invention provides a polyethylene terephthalate fabric for an airbag manufactured by manufacturing a polyethylene terephthalate fiber for an airbag by controlling the strength and elongation of the polyethylene terephthalate fiber, thereby obtaining excellent thermal resistance and instantaneous thermal strain rate.
Accordingly, outer seams rupture less frequently during airbag cushion development tests, and the foldability and storability of the fabric for an airbag are improved.
According to still another exemplary embodiment of the present invention, the fabric for an airbag has a stiffness of 5,0 to 15.0 N.
According to yet another exemplary embodiment of the present invention, the polyethylene terephthalate fiber has a strength of 8.0 to 11.0 g/d, and an elongation of 15 to 30% at room temperature.
According to yet another exemplary embodiment of the present invention, the polyethylene terephthalate fiber has an instantaneous thermal strain rate of 1.0 to 5.0%, and a filament size of 4.5 deniers or less.
': lAdvantageous Effectsc-1 The present invention provides a polyethylene terephthalate fabric for an airbag, which overcomes the lack of flexibility, which is a disadvantage of a conventional fabric for an airbag, and has better thermal resistance. As a result, an airbag module manufactured using the fabric for an airbag can be more easily stored and rarely bursts due to pressure and heat instantaneously applied by a high temperature expanding gas during airbag development tests.
r iBest Models"]
The present invention provides a polyethylene terephthalate fabric for an airbag manufactured by manufacturing a polyethylene terephthalate fiber for an airbag by controlling the strength and elongation of the polyethylene terephthalate fiber, thereby obtaining excellent thermal resistance and instantaneous thermal strain rate.
Accordingly, outer seams rupture less frequently during airbag cushion development tests, and the foldability and storability of the fabric for an airbag are improved.
3 In the present invention, the fabric for an airbag uses a polyethylene terephthalate multifilament obtained by spinning a polyethylene terephthalate chip having an intrinsic viscosity (IV) of 0.8 to 1.3 dl/g to safely absorb instantaneous impact energy of an exhausted gas generated due to explosion of gunpowder in the airbag. A polyester yarn having an intrinsic viscosity (IV) of less than 0.8 dl/g is not suitable because the polyester yarn does not have sufficient toughness to be used as an airbag.
A resin for producing a synthetic fiber multifilament for an airbag may be selected from the group consisting of polymers such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphtha late, polyethylene-I,2-bis(phenoxy)ethane-4,4'-dicarboxylate, and poly(1,4-cyclohexylene-dimethylene tcrephthalate); copolymers including at least one of the polymers as a repeated unit, such as polyethylene terephthalate/isophthalate copolyester, polybutylene terephthalate/naphthalate copolyester, and polybutylene terephthalate/decane dicarboxylate copolyester; and a mixture of at least two of the polymers and copolymers. Among these, in the present invention, a polyethylene terephthalate resin is most preferably used in terms of mechanical properties and the formation of a fiber.
The polyethylene terephthalate fiber for an airbag of the present invention may have a strength of 8.0 to 11.0 g/d and an elongation of 15 to 30% at room temperature. When a strength of the polyethylene terephthalate fiber for an airbag of the present invention is less than 8.0 g/d, the polyethylene terephthalate fiber is not suitable for the present invention because of low tensile and tearing strengths of the manufactured fabric for an airbag.
A resin for producing a synthetic fiber multifilament for an airbag may be selected from the group consisting of polymers such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphtha late, polyethylene-I,2-bis(phenoxy)ethane-4,4'-dicarboxylate, and poly(1,4-cyclohexylene-dimethylene tcrephthalate); copolymers including at least one of the polymers as a repeated unit, such as polyethylene terephthalate/isophthalate copolyester, polybutylene terephthalate/naphthalate copolyester, and polybutylene terephthalate/decane dicarboxylate copolyester; and a mixture of at least two of the polymers and copolymers. Among these, in the present invention, a polyethylene terephthalate resin is most preferably used in terms of mechanical properties and the formation of a fiber.
The polyethylene terephthalate fiber for an airbag of the present invention may have a strength of 8.0 to 11.0 g/d and an elongation of 15 to 30% at room temperature. When a strength of the polyethylene terephthalate fiber for an airbag of the present invention is less than 8.0 g/d, the polyethylene terephthalate fiber is not suitable for the present invention because of low tensile and tearing strengths of the manufactured fabric for an airbag.
4 In addition, when the elongation of the fiber is less than 15%, energy absorbability is decreased when an airbag cushion is suddenly expanded, and thus the airbag cushion bursts, which is not suitable. When a yarn is manufactured to have the elongation of'the fiber of more than 30%, sufficient expression of the strength is difficult due to the characteristics of a process ofmanufacturing a yarn.
The polyethylene terephthalate fiber for an airbag of the present invention may have a filament size of 4.5 deniers or less, and preferably 3 deniers or less.
Generally, as a fiber having a smaller filament size is used, the obtained fabric becomes flexible, thereby achieving excellent foldability and better storability. In addition, when the filament size is smaller, covering properties are enhanced at the same time. As a result, air permeability of the fabric may be inhibited. When the filament size is more than 4.5 deniers, the fabric has degraded foldability and storability, and low air permeability, and thus the fabric cannot properly serve as a fabric for an airbag.
The polyethylene terephthalate fiber for an airbag of the present invention may have an instantaneous thermal strain rate of 0. 1 to 5.0%, and preferably 2.0 to 4.0%
at 100 C. When the instantaneous thermal strain rate of the fiber is less than 1.0%, the absorbability of energy applied when the airbag cushion is expanded due to a high temperature gas is degraded, and thus the airbag cushion bursts easily.
In addition, when the instantaneous thermal strain rate of the fiber is more than
The polyethylene terephthalate fiber for an airbag of the present invention may have a filament size of 4.5 deniers or less, and preferably 3 deniers or less.
Generally, as a fiber having a smaller filament size is used, the obtained fabric becomes flexible, thereby achieving excellent foldability and better storability. In addition, when the filament size is smaller, covering properties are enhanced at the same time. As a result, air permeability of the fabric may be inhibited. When the filament size is more than 4.5 deniers, the fabric has degraded foldability and storability, and low air permeability, and thus the fabric cannot properly serve as a fabric for an airbag.
The polyethylene terephthalate fiber for an airbag of the present invention may have an instantaneous thermal strain rate of 0. 1 to 5.0%, and preferably 2.0 to 4.0%
at 100 C. When the instantaneous thermal strain rate of the fiber is less than 1.0%, the absorbability of energy applied when the airbag cushion is expanded due to a high temperature gas is degraded, and thus the airbag cushion bursts easily.
In addition, when the instantaneous thermal strain rate of the fiber is more than
5.0%, a length of the fiber is increased at high temperature, and thus seams of the airbag cushion rupture when it is expanded due to a high temperature gas. Therefore, an uncontrolled expanding gas is leaked.
In the uncoated polyethylene terephthalate fabric whose density is 50 wefts or warps per inch after a scouring and contracting process, stiffness may be approximately 5.0 to 15.0 N, and preferably 6.0 to 9.0 N when evaluated by circular bend measurement. When the stiffness is more than 15.0 N, the fabric becomes stiff, and thus is difficult to store in the manufacture of the airbag module and degraded in developing performance of the airbag cushion.
In the uncoated polyethylene terephthalatc fabric whose density is 50 wefts or warps per inch after a scouring and contracting process, thermal resistance measured using a rod heated at 350 C in a hot rod test may he 0.75 to 1.0 seconds.
When the thermal resistance measured at 350 C is less than 0.75 seconds, the thermal resistance of the fabric for an airbag is too low to withstand a high temperature gas in the development of the airbag cushion, and thus outer seams of the airbag easily rupture. When the thermal resistance measured at 350 C is more than 1.0 second, since a polyethylene terephthalatc yarn having a larger filament size is necessarily used, the stiffness of the fabric is increased, and thus the fabric for an airbag is difficult to store in the module.
In the uncoated polyethylene terephthalate fabric whose density is 50 wefts or warps per inch after a scouring and contracting process, thermal resistance measured using a steel rod heated to 450 C in a hot rod test may be 0.45 to 0.65 seconds.
When the thermal resistance measured at 450 C is less than 0.45 seconds, the thermal resistance of the fabric for an airbag is too low to withstand a high temperature gas in the development of the airbag cushion, and thus outer seams of the airbag easily rupture. When the thermal resistance measured at 450 C is more than 0.65 seconds, since a polyethylene terephthalate yarn having a larger filament size is necessarily used, the stiffness of the fabric is increased, and thus the fabric for an airbag is difficult to store in the module.
In the uncoated polyethylene terephthalate fabric whose density is 50 wefts or warps per inch after a scouring and contracting process, stiffness may be approximately 5.0 to 15.0 N, and preferably 6.0 to 9.0 N when evaluated by circular bend measurement. When the stiffness is more than 15.0 N, the fabric becomes stiff, and thus is difficult to store in the manufacture of the airbag module and degraded in developing performance of the airbag cushion.
In the uncoated polyethylene terephthalatc fabric whose density is 50 wefts or warps per inch after a scouring and contracting process, thermal resistance measured using a rod heated at 350 C in a hot rod test may he 0.75 to 1.0 seconds.
When the thermal resistance measured at 350 C is less than 0.75 seconds, the thermal resistance of the fabric for an airbag is too low to withstand a high temperature gas in the development of the airbag cushion, and thus outer seams of the airbag easily rupture. When the thermal resistance measured at 350 C is more than 1.0 second, since a polyethylene terephthalatc yarn having a larger filament size is necessarily used, the stiffness of the fabric is increased, and thus the fabric for an airbag is difficult to store in the module.
In the uncoated polyethylene terephthalate fabric whose density is 50 wefts or warps per inch after a scouring and contracting process, thermal resistance measured using a steel rod heated to 450 C in a hot rod test may be 0.45 to 0.65 seconds.
When the thermal resistance measured at 450 C is less than 0.45 seconds, the thermal resistance of the fabric for an airbag is too low to withstand a high temperature gas in the development of the airbag cushion, and thus outer seams of the airbag easily rupture. When the thermal resistance measured at 450 C is more than 0.65 seconds, since a polyethylene terephthalate yarn having a larger filament size is necessarily used, the stiffness of the fabric is increased, and thus the fabric for an airbag is difficult to store in the module.
6 In the present invention, the fabric may be woven with the polyethylene terephthalate fiber as a plain fabric having a symmetrical structure.
Alternately, to obtain more favorable physical properties, the fabric may be woven as a 2/2 panama fabric having a symmetrical structure using a yarn having a smaller linear density.
The woven fabric may be coated with a coating agent selected of silicon-, polyurethane-, acryl-, neoprene-, and chloroprene-based coating agents at a weight of to 60 g/m2 to secure low air permeability, which is suitable for the fabric for an airbag.
Evaluation of physical properties in Examples and Comparative Examples were 10 performed as follows:
1) Intrinsic Viscosity (I.V.) 0.1 g of a sample was dissolved in a reagent prepared by mixing phenol and 1,1,2,2-tetrachloroethanol in a weight ratio of 6:4 (90 C) for 90 minutes.
The resulting solution was transferred to an 1_Jbbelohde viscometer and maintained in a 15 constant temperature oven at 30 C for 10 minutes, and a drop time of the solution was measured using a viscometer and an aspirator. A drop time of a solvent was also measured as described above, and then R.V. and I.V. values were calculated by the following equations.
R.V. = Drop Time of Sample/Drop Time of Solvent I.V. = l/4x[(R.V.-l)/C:i+3/4x(In R.V./C) In the above equation, C is the concentration (g/l00 ml) of the sample in the solution.
2) Measurement of Instantaneous'I'hennal Strain Rate A bundle of filaments having a thickness of approximately 59 deniers was made by randomly selecting filaments from a multi filament yarn. The bundle of
Alternately, to obtain more favorable physical properties, the fabric may be woven as a 2/2 panama fabric having a symmetrical structure using a yarn having a smaller linear density.
The woven fabric may be coated with a coating agent selected of silicon-, polyurethane-, acryl-, neoprene-, and chloroprene-based coating agents at a weight of to 60 g/m2 to secure low air permeability, which is suitable for the fabric for an airbag.
Evaluation of physical properties in Examples and Comparative Examples were 10 performed as follows:
1) Intrinsic Viscosity (I.V.) 0.1 g of a sample was dissolved in a reagent prepared by mixing phenol and 1,1,2,2-tetrachloroethanol in a weight ratio of 6:4 (90 C) for 90 minutes.
The resulting solution was transferred to an 1_Jbbelohde viscometer and maintained in a 15 constant temperature oven at 30 C for 10 minutes, and a drop time of the solution was measured using a viscometer and an aspirator. A drop time of a solvent was also measured as described above, and then R.V. and I.V. values were calculated by the following equations.
R.V. = Drop Time of Sample/Drop Time of Solvent I.V. = l/4x[(R.V.-l)/C:i+3/4x(In R.V./C) In the above equation, C is the concentration (g/l00 ml) of the sample in the solution.
2) Measurement of Instantaneous'I'hennal Strain Rate A bundle of filaments having a thickness of approximately 59 deniers was made by randomly selecting filaments from a multi filament yarn. The bundle of
7 filaments was mounted on a TA instrument (model name: TMS Q-400) to have a length of 10 mm, and then a stress of 1.0 gf/den was applied thereto. 2 minutes after the application of a stress, a test started and a temperature was rapidly increased from 30 to 100 C for 30 minutes. An instantaneous thermal strain rate was obtained by dividing a length increment of the sample when the temperature approached [00 C by an initial length of the sample, and is shown as a percentage.
3) Measurement of Stiffness of Fabric The stiffness of a fabric was measured by circular bend measurement according to the specification of ASTM D4032. Here, the stiffness was measured with respect to weft and warp directions, and an average of the values obtained in the weft and warp directions is shown in units of Newtons (N).
4) Method of Measuring Thermal Resistance of Fabric (350 C Hot rod test) A cylindrical steel rod having a weight of 50 g and a diameter of 10 mm was heated to 350 C and then dropped vertically from 10 em above a fabric for an airbag, Here, the time in which the heated rod fell through the fabric was Ti, and the time in which the rod fell without the fabric was i'2. The thermal resistance was measured by the following equation. Here, one layer of the unfolded fabric for an airbag was used.
(Equation 1 Thermal Resistance (Sec.) of Fabric = Ti-T2 5) Method of Measuring Thermal Resistance of Fabric (450 C Hot rod test) A cylindrical steel rod having a weight of 50 g and a diameter of 10 mm was heated to 450 C and then dropped vertically from 10 cm above a fabric for an airbag.
Here, the time in which the heated rod fell through the fabric was T3, and the time in which the rod fell without the fabric was T4. The thermal resistance was measured
3) Measurement of Stiffness of Fabric The stiffness of a fabric was measured by circular bend measurement according to the specification of ASTM D4032. Here, the stiffness was measured with respect to weft and warp directions, and an average of the values obtained in the weft and warp directions is shown in units of Newtons (N).
4) Method of Measuring Thermal Resistance of Fabric (350 C Hot rod test) A cylindrical steel rod having a weight of 50 g and a diameter of 10 mm was heated to 350 C and then dropped vertically from 10 em above a fabric for an airbag, Here, the time in which the heated rod fell through the fabric was Ti, and the time in which the rod fell without the fabric was i'2. The thermal resistance was measured by the following equation. Here, one layer of the unfolded fabric for an airbag was used.
(Equation 1 Thermal Resistance (Sec.) of Fabric = Ti-T2 5) Method of Measuring Thermal Resistance of Fabric (450 C Hot rod test) A cylindrical steel rod having a weight of 50 g and a diameter of 10 mm was heated to 450 C and then dropped vertically from 10 cm above a fabric for an airbag.
Here, the time in which the heated rod fell through the fabric was T3, and the time in which the rod fell without the fabric was T4. The thermal resistance was measured
8 by the following equation. Here, one layer of the unfolded fabric for an airbag was used.
[Equation 2]
't'hermal Resistance (Sec.) of Fabric 6) Method of Measuring Strength and Elongation of Yarn A yarn sample was left in a constant temperature and constant humidity chamber under standard conditions, that is, a temperature of 25 C and a relative humidity of 65% for 24 hours, and tested by a method of ASTM 2256 using a tension tester.
7) Weaving and Coating of Fabric A plain fabric was woven with a filament yarn to have a yarn density of 50 wefts or warps per inch in both of well and warp directions. A raw fabric was scoured and contracted in aqueous baths which were gradually set from 50 to 95 C
using a continuous scouring machine, and then treated at 200 C for 2 minutes by thermomechanical treatment. Afterward, the fabric was coated with a silicon-based coating agent at a weight of 25 g/m2.
8) Airbag Cushion Development Test A driver airbag (DAB) module was manufactured with a coated fabric for an airbag, and subjected to a static test within several minutes after being left at 85 C
for 4 hours. Here, a pressure of a powder inflator was 180 kPa, and when the tearing of the fabric, forming of a pin hole and burning of the fabric were not shown after the development test, it was evaluated as "Pass." However, when any one of the tearing of the fabric, forming of a pin hole in a seam and burning of the fabric was shown, it was evaluated as "Fail."
']Mode for Invention-:I
[Equation 2]
't'hermal Resistance (Sec.) of Fabric 6) Method of Measuring Strength and Elongation of Yarn A yarn sample was left in a constant temperature and constant humidity chamber under standard conditions, that is, a temperature of 25 C and a relative humidity of 65% for 24 hours, and tested by a method of ASTM 2256 using a tension tester.
7) Weaving and Coating of Fabric A plain fabric was woven with a filament yarn to have a yarn density of 50 wefts or warps per inch in both of well and warp directions. A raw fabric was scoured and contracted in aqueous baths which were gradually set from 50 to 95 C
using a continuous scouring machine, and then treated at 200 C for 2 minutes by thermomechanical treatment. Afterward, the fabric was coated with a silicon-based coating agent at a weight of 25 g/m2.
8) Airbag Cushion Development Test A driver airbag (DAB) module was manufactured with a coated fabric for an airbag, and subjected to a static test within several minutes after being left at 85 C
for 4 hours. Here, a pressure of a powder inflator was 180 kPa, and when the tearing of the fabric, forming of a pin hole and burning of the fabric were not shown after the development test, it was evaluated as "Pass." However, when any one of the tearing of the fabric, forming of a pin hole in a seam and burning of the fabric was shown, it was evaluated as "Fail."
']Mode for Invention-:I
9 Hereinafter, the present invention will be described in detail with respect to Examples, but the scope of the present invention is not limited to the following Examples and Comparative Examples.
Example 1 A raw fabric for an airbag was manufactured with a polyethylene terephthalate yarn having the characteristies listed in Table I by plain-weaving using a rapier loom to have a fabric density of 50 wefts or warps per inch in both of weft and warp directions.
Example 2 A raw fabric for an airbag was manufactured with a polyethylene terephthalate yarn having the characteristics listed in Table I by the method as described in Example 1.
Example 3 A raw fabric for an airbag was manufactured with a polyethylene terephthalate yarn having the characteristics listed in Table I by the method as described in Example 1.
Comparative Example I
A raw fabric for an airbag was manufactured with a nylon 66 yarn having the characteristics listed in Table I by plain-weaving using a rapier loom to have a fabric density of 50 wefts or warps per inch in both of weft and warp directions.
Comparative Example 2 A raw fabric for an airbag was manufactured with a polyethylene terephthalate yarn having the characteristics listed in Table I by the method as described in Comparative Example 1.
Comparative Example 3 A raw fabric for an airbag was manufactured with a polyethylene terephthalate yarn having the characteristics listed in Table 1 by the method as described in Comparative Example 1.
Example 4 The raw fabric manufactured in Example I was scoured and contracted in aqueous baths gradually set from 50 to 95 C using a continuous scouring machine, and then treated at 200 C for 2 minutes by thermomechanical treatment. In an uncoated state, the fabric was measured in stiffness, thermal resistance at 350 C and thermal resistance at 450 C, the results of which are shown in 'Table 2.
In addition, the manufactured fabric was coated with a silicon-based coating agent at a weight of 25g/r2, and thermally treated at 180 C for 2 minutes. An airbag cushion was made with the thermally-treated fabric, and subjected to a development test for the airhag cushion. The test results and storability in a module are shown in Table 2.
Example 5 The raw fabric manufactured in Example 2 was treated by the method described in Example 4. Physical properties, results of an airbag cushion development test and storability in a module of the manufactured fabric are shown in "fable 2.
Example 6 The raw fabric manufactured in Example 3 was treated by the method described in Example 4. Physical properties, results of an airbag cushion development test and storability in a module of the manufactured fabric are shown in Table 2.
Comparative Example 4 The raw fabric manufactured in Comparative Example 1 was scoured and contracted in aqueous baths gradually set from 50 to 95 C using a continuous scouring machine, and then treated at 200 C for 2 minutes by thermotnechanical treatment. In an uncoated state, the fabric was measured in stiffness, thermal resistance at 350 C and thermal resistance at 450 C, the results of which are shown in Table 2.
In addition, the manufactured fabric was coated with a silicon-based coating agent at a weight of 25g/m2, and thermally treated at 180 C for 2 minutes. An airbag cushion was made with the thermally-treated fabric, and subjected to a development test for the airbag cushion. The test results and storability in a module are shown in Table 2.
Comparative Example 5 The raw fabric manufactured in Comparative Example 2 was treated by the method described in Comparative Example 3. Physical properties, results of an airbag cushion development test and storability in a module of the manufactured fabric are shown in Table 2.
Comparative Example 6 The raw fabric manufactured in Comparative Example 3 was treated by the method described in Comparative Example 3. Physical properties, results of an airbag cushion development test and storability in a module of the manufactured fabric are shown in Table 2.
[Table 1]
Kind Intrinsic Instantaneous filament Strength Elongation Material of Viscosity Thermal Strain size (don) (glden) (%) Yarn (dl/g) Rate (%) Polyethylene Example I d/182 1.06 2.7 8.4 25.0 2.8 tereplit 11,11 ate Polyethylene Example 2 d/182 1.06 2.7 11.0 18.0 3.5 tcrephthalate f Polyethylene Example 3 d/120 1.06 4.2 9.0 22.6 2.3 tcrephthalate Comparative 420 Nylon 66 - 6.2 9.7 22.0 1.8 Example I d/68 f Comparative Polyethylene 420 1.06 6.2 7.8 14.0 0.4 Example 2 tercpltthalate d/68 f Comparative Polyethylene 500 1.06 5.2 7.5 12.0 0.6 Example 3 tcrephthalate d/96 f [Table 21 1'hernral Thermal Airbag Cushion Ability to he Stiflitess of Resistance at Resistance at Development stored in Fabric Fabric (N) 350 C (sec.) 450 C (sec.) Test for Airbag 13xample 4 7.4 0.94 0.56 Pass Good Example 5 7.6 0.97 0.62 Pass Good Example 6 13.7 0.87 0.50 Pass Moderate Comparative 6.9 0 79 0.46 Pass Good Example 4 Comparative 15.4 0.69 0.39 Fail Bad Example 5 Comparative 17.5 0.73 0.42 Fail 13 ad Example 6 While the invention has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Example 1 A raw fabric for an airbag was manufactured with a polyethylene terephthalate yarn having the characteristies listed in Table I by plain-weaving using a rapier loom to have a fabric density of 50 wefts or warps per inch in both of weft and warp directions.
Example 2 A raw fabric for an airbag was manufactured with a polyethylene terephthalate yarn having the characteristics listed in Table I by the method as described in Example 1.
Example 3 A raw fabric for an airbag was manufactured with a polyethylene terephthalate yarn having the characteristics listed in Table I by the method as described in Example 1.
Comparative Example I
A raw fabric for an airbag was manufactured with a nylon 66 yarn having the characteristics listed in Table I by plain-weaving using a rapier loom to have a fabric density of 50 wefts or warps per inch in both of weft and warp directions.
Comparative Example 2 A raw fabric for an airbag was manufactured with a polyethylene terephthalate yarn having the characteristics listed in Table I by the method as described in Comparative Example 1.
Comparative Example 3 A raw fabric for an airbag was manufactured with a polyethylene terephthalate yarn having the characteristics listed in Table 1 by the method as described in Comparative Example 1.
Example 4 The raw fabric manufactured in Example I was scoured and contracted in aqueous baths gradually set from 50 to 95 C using a continuous scouring machine, and then treated at 200 C for 2 minutes by thermomechanical treatment. In an uncoated state, the fabric was measured in stiffness, thermal resistance at 350 C and thermal resistance at 450 C, the results of which are shown in 'Table 2.
In addition, the manufactured fabric was coated with a silicon-based coating agent at a weight of 25g/r2, and thermally treated at 180 C for 2 minutes. An airbag cushion was made with the thermally-treated fabric, and subjected to a development test for the airhag cushion. The test results and storability in a module are shown in Table 2.
Example 5 The raw fabric manufactured in Example 2 was treated by the method described in Example 4. Physical properties, results of an airbag cushion development test and storability in a module of the manufactured fabric are shown in "fable 2.
Example 6 The raw fabric manufactured in Example 3 was treated by the method described in Example 4. Physical properties, results of an airbag cushion development test and storability in a module of the manufactured fabric are shown in Table 2.
Comparative Example 4 The raw fabric manufactured in Comparative Example 1 was scoured and contracted in aqueous baths gradually set from 50 to 95 C using a continuous scouring machine, and then treated at 200 C for 2 minutes by thermotnechanical treatment. In an uncoated state, the fabric was measured in stiffness, thermal resistance at 350 C and thermal resistance at 450 C, the results of which are shown in Table 2.
In addition, the manufactured fabric was coated with a silicon-based coating agent at a weight of 25g/m2, and thermally treated at 180 C for 2 minutes. An airbag cushion was made with the thermally-treated fabric, and subjected to a development test for the airbag cushion. The test results and storability in a module are shown in Table 2.
Comparative Example 5 The raw fabric manufactured in Comparative Example 2 was treated by the method described in Comparative Example 3. Physical properties, results of an airbag cushion development test and storability in a module of the manufactured fabric are shown in Table 2.
Comparative Example 6 The raw fabric manufactured in Comparative Example 3 was treated by the method described in Comparative Example 3. Physical properties, results of an airbag cushion development test and storability in a module of the manufactured fabric are shown in Table 2.
[Table 1]
Kind Intrinsic Instantaneous filament Strength Elongation Material of Viscosity Thermal Strain size (don) (glden) (%) Yarn (dl/g) Rate (%) Polyethylene Example I d/182 1.06 2.7 8.4 25.0 2.8 tereplit 11,11 ate Polyethylene Example 2 d/182 1.06 2.7 11.0 18.0 3.5 tcrephthalate f Polyethylene Example 3 d/120 1.06 4.2 9.0 22.6 2.3 tcrephthalate Comparative 420 Nylon 66 - 6.2 9.7 22.0 1.8 Example I d/68 f Comparative Polyethylene 420 1.06 6.2 7.8 14.0 0.4 Example 2 tercpltthalate d/68 f Comparative Polyethylene 500 1.06 5.2 7.5 12.0 0.6 Example 3 tcrephthalate d/96 f [Table 21 1'hernral Thermal Airbag Cushion Ability to he Stiflitess of Resistance at Resistance at Development stored in Fabric Fabric (N) 350 C (sec.) 450 C (sec.) Test for Airbag 13xample 4 7.4 0.94 0.56 Pass Good Example 5 7.6 0.97 0.62 Pass Good Example 6 13.7 0.87 0.50 Pass Moderate Comparative 6.9 0 79 0.46 Pass Good Example 4 Comparative 15.4 0.69 0.39 Fail Bad Example 5 Comparative 17.5 0.73 0.42 Fail 13 ad Example 6 While the invention has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims
.dottedcircle.Claim 1.dottedcircle.
A fabric for an airbag, comprising:
a polyethylene terephthalate fiber manufactured by spinning a polyethylene terephthalate chip having an intrinsic viscosity of 0.8 to 1.3 dl/g, wherein the fabric for an airbag has a thermal resistance at 350 °C of 0.75 to 1.0 seconds, which is calculated by the following Equation:
[Equation 1]
Thermal Resistance of Fabric (sec.) = T1-T2 where T1 is the time in which a steel rod heated to 350 °C falls from 10 cm above the fabric through the fabric, and T2 is the time in which the same steel rod falls from the same height.
.dottedcircle.Claim 2.dottedcircle.
A fabric for an airbag, comprising:
a polyethylene terephthalate fiber manufactured by spinning a polyethylene terephthalate chip having an intrinsic viscosity of 0.8 to 1.3 dl/g, wherein the fabric for an airbag has a thermal resistance at 450 °C of 0.45 to 0.65 seconds, which is calculated by the following Equation:
[Equation 1]
Thermal Resistance of Fabric (see.) = T3-T4 where T3 is the time in which a steel rod heated at 450 °C falls from 10 cm above the fabric through the fabric, and T4 is the time in which the same steel rod falls from the same height.
.dottedcircle.Claim 3.dottedcircle.
The fabric for an airbag according to any one of claims 1 and 2, wherein the polyethylene terephthalate fiber has an instantaneous thermal strain rate of
1.0 to 5.0%.
.dottedcircle.Claim 4.dottedcircle.
The fabric for an airbag according to any one of claims 1 or 2, wherein the fabric for an airbag has a stiffness of 5.0 to 15.0 N.
.dottedcircle.Claim 5.dottedcircle.
The fabric for an airbag according to any one of claims 1 or 2, wherein the polyethylene terephthalate fiber has a strength of 8.0 to 11.0 g/d, and an elongation of 15 to 30% at room temperature.
.dottedcircle.Claim 6.dottedcircle.
The fabric for an airbag according to any one of claims 1 or 2, wherein the polyethylene terephthalate fiber has a filament size of 4.5 deniers or less.
.dottedcircle.Claim 4.dottedcircle.
The fabric for an airbag according to any one of claims 1 or 2, wherein the fabric for an airbag has a stiffness of 5.0 to 15.0 N.
.dottedcircle.Claim 5.dottedcircle.
The fabric for an airbag according to any one of claims 1 or 2, wherein the polyethylene terephthalate fiber has a strength of 8.0 to 11.0 g/d, and an elongation of 15 to 30% at room temperature.
.dottedcircle.Claim 6.dottedcircle.
The fabric for an airbag according to any one of claims 1 or 2, wherein the polyethylene terephthalate fiber has a filament size of 4.5 deniers or less.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2010-0060006 | 2010-06-24 | ||
| KR1020100060004A KR101130265B1 (en) | 2010-06-24 | 2010-06-24 | Airbag Fabrics Using Polyethyleneterephtalate Yarn |
| KR10-2010-0060004 | 2010-06-24 | ||
| KR1020100060006A KR101130264B1 (en) | 2010-06-24 | 2010-06-24 | Airbag Fabrics Using Polyethyleneterephtalate Yarn having Heat Resistance |
| PCT/KR2011/003890 WO2011162486A2 (en) | 2010-06-24 | 2011-05-27 | Fabric for airbag, using polyethylene terephthalate fiber with excellent heat resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2801482A1 true CA2801482A1 (en) | 2011-12-29 |
| CA2801482C CA2801482C (en) | 2015-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CA2801482A Active CA2801482C (en) | 2010-06-24 | 2011-05-27 | Fabric for airbag, using polyethylene terephthalate fiber with excellent heat resistance |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20130089725A1 (en) |
| JP (1) | JP2013528719A (en) |
| CN (1) | CN102959147B (en) |
| CA (1) | CA2801482C (en) |
| DE (1) | DE112011102093B4 (en) |
| GB (1) | GB2495645A (en) |
| MX (1) | MX2012014677A (en) |
| RO (1) | RO131566B1 (en) |
| WO (1) | WO2011162486A2 (en) |
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| JP2013514465A (en) * | 2009-12-24 | 2013-04-25 | ヒョスン コーポレーション | Polyethylene terephthalate fiber for airbag and fabric using the same |
| EP2597180A1 (en) * | 2011-11-24 | 2013-05-29 | Autoliv Development AB | Improvements relating to air-bag fabrics |
| US11001222B2 (en) * | 2016-04-05 | 2021-05-11 | Felters Of South Carolina, Llc | Vehicle safety devices, seam tapes for use in airbag and related methods |
| EP3690094A4 (en) * | 2017-09-28 | 2021-07-07 | Seiren Co., Ltd. | Non-coated airbag fabric and airbag |
| US11752969B2 (en) | 2017-09-29 | 2023-09-12 | Seiren Co., Ltd. | Non-coated air bag base cloth and air bag |
| WO2019065894A1 (en) * | 2017-09-29 | 2019-04-04 | セーレン株式会社 | Woven fabric for non-coated airbag, and airbag |
| CN117795143A (en) | 2021-09-09 | 2024-03-29 | 东丽株式会社 | Fabric for airbag and airbag |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH066731A (en) * | 1992-06-19 | 1994-01-14 | Matsushita Electric Ind Co Ltd | Video signal output device |
| US5474836A (en) * | 1993-01-06 | 1995-12-12 | Teijin Limited | Polyester filament woven fabric for air bags |
| JP3089155B2 (en) * | 1993-02-26 | 2000-09-18 | 帝人株式会社 | Polyester filament fabric for airbag |
| JPH07119011A (en) * | 1993-10-26 | 1995-05-09 | Nippon Ester Co Ltd | Polyester-based heat-resistant nonwoven fabric and its production |
| CA2141768A1 (en) * | 1994-02-07 | 1995-08-08 | Tatsuro Mizuki | High-strength ultra-fine fiber construction, method for producing the same and high-strength conjugate fiber |
| JP3459478B2 (en) * | 1994-11-04 | 2003-10-20 | ユニチカ株式会社 | Thread for airbag |
| DE19537699A1 (en) * | 1995-10-11 | 1997-04-17 | Hoechst Trevira Gmbh & Co Kg | Flame-retardant fabrics containing phosphor-modified polyester fibers, airbags made from them and their use |
| KR100622204B1 (en) * | 2000-01-10 | 2006-09-07 | 주식회사 휴비스 | Polytrimethyleneterephthalate fiber and preparation thereof |
| US20010029140A1 (en) * | 2000-03-09 | 2001-10-11 | Toray Industires, Inc. | Seat belt webbing and passenger-holding device using the same |
| CN1328300C (en) * | 2001-02-23 | 2007-07-25 | 东洋纺织株式会社 | Polyester catalyst for polymerization, polyester and method thereby |
| KR101018219B1 (en) * | 2005-06-24 | 2011-02-28 | 도요 보세키 가부시키가이샤 | Process for producing polyester, polyester produced using said process, and polyester molded product |
| US7375042B2 (en) * | 2007-02-02 | 2008-05-20 | Invista North America S.Ar.L. | Woven polyester fabric for airbags |
| EP2334856A4 (en) * | 2008-09-05 | 2013-03-20 | Kolon Inc | Fabric for airbag and method of preparing the same |
| EP2423360B1 (en) * | 2009-04-23 | 2014-05-07 | Kolon Industries Inc. | Polyester fabric for an airbag, and method for manufacturing same |
| JP2013514465A (en) * | 2009-12-24 | 2013-04-25 | ヒョスン コーポレーション | Polyethylene terephthalate fiber for airbag and fabric using the same |
| US9499928B2 (en) * | 2010-03-29 | 2016-11-22 | Kolon Industries, Inc. | Polyester fiber suitable for air bag and method for producing the polyester fiber |
| WO2011122801A2 (en) * | 2010-03-30 | 2011-10-06 | 코오롱인더스트리 주식회사 | Polyester fabric and method for manufacturing same |
-
2011
- 2011-05-27 MX MX2012014677A patent/MX2012014677A/en not_active Application Discontinuation
- 2011-05-27 CA CA2801482A patent/CA2801482C/en active Active
- 2011-05-27 CN CN201180030541.3A patent/CN102959147B/en active Active
- 2011-05-27 US US13/704,838 patent/US20130089725A1/en not_active Abandoned
- 2011-05-27 JP JP2013515255A patent/JP2013528719A/en active Pending
- 2011-05-27 GB GB1221682.6A patent/GB2495645A/en not_active Withdrawn
- 2011-05-27 DE DE112011102093.7T patent/DE112011102093B4/en active Active
- 2011-05-27 WO PCT/KR2011/003890 patent/WO2011162486A2/en active Application Filing
- 2011-05-27 RO RO201201043A patent/RO131566B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN102959147A (en) | 2013-03-06 |
| RO131566B1 (en) | 2020-03-30 |
| CA2801482C (en) | 2015-05-19 |
| CN102959147B (en) | 2014-06-11 |
| RO131566A2 (en) | 2016-12-30 |
| MX2012014677A (en) | 2013-02-11 |
| JP2013528719A (en) | 2013-07-11 |
| DE112011102093T5 (en) | 2013-08-08 |
| WO2011162486A3 (en) | 2012-05-03 |
| GB2495645A (en) | 2013-04-17 |
| WO2011162486A2 (en) | 2011-12-29 |
| US20130089725A1 (en) | 2013-04-11 |
| DE112011102093B4 (en) | 2019-06-19 |
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