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US 10,300,677 B2Granted
Composite sheet and cargo container comprising same
AssigneeE. I. Du Pont de Nemours and Company
InventorDariusz Wlodzimierz Kawka
Life of this patent
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Abstract
A non-rigid composite sheet comprising in order (i) a first component comprising at least one first fabric of continuous filament yarns having a tenacity of at least 11 g/dtex and a first polymeric layer, (ii) a second component comprising at least one second fabric of continuous filament glass yarns, the at least one second fabric being adjacent to the at least one first fabric of the first component, and (iii) a third component comprising a second polymeric layer.
Claims17
A non-rigid composite sheet comprising in order
- (i) a first component having an areal weight of from 88 to 678 gsm comprising at least one first fabric of continuous filament yarns having a tenacity of at least 11 g/dtex and a first polymeric layer,
- (ii) a second component comprising at least one second fabric of continuous filament glass yarns, the at least one second fabric being adjacent to the at least one first fabric of the first component, and
- (iii) a third component comprising a second polymeric layer,
- wherein
- (a) the at least one first fabric is a woven fabric having an areal weight of from 70 to 508 gsm comprising yarns of aromatic polyamide, aromatic copolyamide, glass fiber or carbon fiber,
- (b) the polymer of the first or second polymeric layers is polyurethane, polyethylene, polypropylene, polyethylenenaphthalate, polyacrylonitrile, fluoropolymer, polyamide, polyketone, polyimide, polysulfone, polyarylene sulfide, liquid crystal polymer, polycarbonate, polyvinylchloride, silicone, an fr silicone, an fr polyurethane, an fr polyvinylchloride or an ethylenemethacrylicacid copolymer,
- and
- (c) when the at least one second fabric is free of a polymeric coating, the fabric has a flame barrier cover of at least 90% when measured over a minimum area of 645 sq. mm. of fabric surface, an areal weight of at least 136 gsm and the fabric comprises fiber having a nominal filament tensile strength of at least 3.4 GPa, or when the at least one second fabric further comprises a polymeric coating on the surface of, or impregnated into the fabric, the coated fabric has a flame barrier cover of at least 90% when measured over a minimum area of 645 sq. mm. of fabric surface, an areal weight of at least 30 gsm and the fabric comprises fiber having a having a nominal filament tensile strength of at least 3.4 GPa and the polymeric coating is present in an amount of from 20 to 50 weight percent of the fabric weight with the proviso that, when the fabric prior to coating has a flame barrier cover of less than 90% and/or the fabric weight prior to coating is less than 135 gsm, then the coating weight is at least 50 gsm.
5 more elements
A non-rigid composite sheet comprising in order
- (i) a first component having an areal weight of from 88 to 678 gsm comprising at least one first fabric of continuous filament yarns having a tenacity of at least 11 g/dtex and a first polymeric layer, the at least one first fabric being bonded to the first polymeric layer,
- (ii) a second component comprising at least one second fabric of continuous filament glass yarns, the at least one second fabric being adjacent to and bonded to the at least one first fabric of the first component, and
- (iii) a third component comprising a second polymeric layer, the second polymeric layer being bonded to the at least one second fabric,
- wherein
- (a) the at least one first fabric is a woven fabric has an areal weight of from 70 to 508 gsm and comprises yarns of aromatic polyamide, aromatic copolyamide, glass fiber or carbon fiber,
- (b) the polymer of the first or second polymeric layers is polyurethane, polyethylene, polypropylene, polyethylenenaphthalate, polyacrylonitrile, fluoropolymer, polyamide, polyketone, polyimide, polysulfone, polyarylene sulfide, liquid crystal polymer, polycarbonate, polyvinylchloride, silicone, an fr silicone, an fr polyurethane, an fr polyvinylchloride or an ethylenemethacrylicacid copolymer,
- and
- (c) when the at least one second fabric is free of a polymeric coating, the fabric has a flame barrier cover of at least 90% when measured over a minimum area of 645 sq. mm. of fabric surface, an areal weight of at least 136 gsm and the fabric comprises fiber having a nominal filament tensile strength of at least 3.4 GPa, or when the at least one second fabric further comprises a polymeric coating on the surface of, or impregnated into the fabric, the coated fabric has a flame barrier cover of at least 90% when measured over a minimum area of 645 sq. mm. of fabric surface, an areal weight of at least 30 gsm and the fabric comprises fiber having a having a nominal filament tensile strength of at least 3.4 GPa and the polymeric coating is present in an amount of from 20 to 50 weight percent of the fabric weight with the proviso that, when the fabric prior to coating has a flame barrier cover of less than 90% and/or the fabric weight prior to coating is less than 135 gsm, then the coating weight is at least 50 gsm.
5 more elements
A non-rigid composite sheet comprising in order
- (i) a first component having an areal weight of from 88 to 678 gsm comprising at least one first fabric of continuous filament yarns having a tenacity of at least 11 g/dtex and a first polymeric layer, the at least one first fabric being bonded to the first polymeric layer,
- (ii) a second component comprising at least one second fabric of continuous filament glass yarns, the at least one second fabric being adjacent to and bonded to the at least one first fabric of the first component, and
- (iii) a third component comprising at least one third fabric of continuous filament yarns having a tenacity of at least 11 g/dtex, the at least one third fabric being adjacent to and bonded to the at least one second fabric, and a second polymeric layer, the second polymeric layer being bonded to the at least one third fabric,
- wherein
- (a) the at least one first fabric is a woven fabric has an areal weight of from 70 to 508 gsm and comprises yarns of aromatic polyamide, aromatic copolyamide, glass fiber or carbon fiber,
- (b) the polymer of the first or second polymeric layers is polyurethane, polyethylene, polypropylene, polyethylenenaphthalate, polyacrylonitrile, fluoropolymer, polyamide, polyketone, polyimide, polysulfone, polyarylene sulfide, liquid crystal polymer, polycarbonate, polyvinylchloride, silicone, an fr silicone, an fr polyurethane, an fr polyvinylchloride or an ethylenemethacrylicacid copolymer,
- and
- (c) when the at least one second fabric is free of a polymeric coating, the fabric has a flame barrier cover of at least 90% when measured over a minimum area of 645 sq. mm. of fabric surface, an areal weight of at least 136 gsm and the fabric comprises fiber having a nominal filament tensile strength of at least 3.4 GPa, or when the at least one second fabric further comprises a polymeric coating on the surface of, or impregnated into the fabric, the coated fabric has a flame barrier cover of at least 90% when measured over a minimum area of 645 sq. mm. of fabric surface, an areal weight of at least 30 gsm and the fabric comprises fiber having a having a nominal filament tensile strength of at least 3.4 GPa and the polymeric coating is present in an amount of from 20 to 50 weight percent of the fabric weight with the proviso that, when the fabric prior to coating has a flame barrier cover of less than 90% and/or the fabric weight prior to coating is less than 135 gsm, then the coating weight is at least 50 gsm.
5 more elements
Dependencies are inferred from the claim text.