# US 2014/0189922 A1 · Impact-absorbing member, protective clothing, and process for producing impact-absorbing member > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0189922 A1 - Document ID: US20140189922A1 - Status: Published application - Kind: A1 - Application number: 14/238,768 - Filed: 2013-02-08 - Published: 2014-07-10 - Earliest claimed: 2012-03-12 - Assignees: Sekisui Chemical Co., Ltd. - Applicants: Sekisui Chemical Co., Ltd. - Inventors: Masanori Nakamura - Web page: https://patentgrep.com/patent/US20140189922A1 ## CPC - F41H 1/02: Armoured or projectile- or missile-resistant garments; Composite protection fabrics {(F41H5/04 takes precedence)} - B32B 1/00: Layered products having a non-planar shape - B32B 3/00: Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form - B32B 3/06: for securing layers together; for attaching the product to another member, e.g. to a support {, or to another product, e.g. groove/tongue, interlocking} - B32B 3/26: characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids {(foam layer B32B5/18; layer of synthetic resin characterised by fillers that create voids or cavities B32B27/205); characterised by an apertured layer} - B32B 5/02: characterised by structural features of a {fibrous or filamentary} layer {(layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02)} - B32B 5/024: {Woven fabric} - B32B 5/04: characterised by a layer being specifically extensible by reason of its structure or arrangement {, e.g. by reason of the chemical nature of the fibres or filaments} - B32B 5/06: characterised by a fibrous {or filamentary} layer {mechanically connected, e.g. by needling} to another layer, e.g. of fibres, of paper - B32B 5/22: characterised by the presence of two or more layers which {are next to each other and are fibrous, filamentary, formed of particles or foamed (layer formed of natural mineral fibres or particles next to a foam layer B32B19/047, next to a layer made of particles B32B19/048, or next to a fibrous or filamentary layer B32B19/06; paper layer or cardboard layer next to a paper layer or cardboard layer B32B29/005, next to a foam layer B32B29/007, next to a fibrous or filamentary layer B32B29/02, or next to a particulate layer B32B29/04)} - B32B 7/00: Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers - B32B 7/035: using arrangements of stretched films, e.g. of mono-axially stretched films arranged alternately - B32B 7/04: Interconnection of layers - B32B 7/10: at least one layer having inter-reactive properties - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 7/14: applied in spaced arrangements, e.g. in stripes - B32B 15/00: Layered products comprising {a layer of} metal - B32B 15/04: comprising metal as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a bituminous or tarry layer B32B11/08; next to a water-setting substance layer B32B13/06; next to a glass layer B32B17/061; next to a cellulosic plastic layer B32B23/042)} - B32B 15/08: of synthetic resin - B32B 27/00: Layered products comprising {a layer of} synthetic resin {(fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18)} - B32B 27/06: as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a layer of a particular substance B32B9/045; next to a bituminous or tarry layer B32B11/046; next to a water setting substance layer B32B13/12; next to a metal layer B32B15/08; next to a glass layer B32B17/10; next to a layer formed of natural mineral fibres or particles B32B19/045; next to a wood layer B32B21/08; next to a cellulosic plastic layer B32B23/08; next to a natural or synthetic rubber layer B32B25/08)} - B32B 27/08: of synthetic resin - B32B 27/12: next to a fibrous or filamentary layer - B29C 55/02: of plates or sheets - B29C 55/12: biaxial - B32B 2250/00: Layers arrangement - B32B 2250/40: Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA - B32B 2250/42: Alternating layers, e.g. ABAB(C), AABBAABB(C) - B32B 2307/514: Oriented - B32B 2307/516: mono-axially - B32B 2307/518: bi-axially - B32B 2307/558: Impact strength, toughness - B32B 2307/581: Resistant to cut - B32B 2571/00: Protective equipment - B32B 2571/02: defensive, e.g. armour plates or anti-ballistic clothing - Y10T 428/24322: Composite web or sheet - Y10T 428/249921: Web or sheet containing structurally defined element or component - Y10T 428/249981: Plural void-containing components - Y10T 428/31786: Of polyester [e.g., alkyd, etc.] - Y10T 442/3862: Ester condensation polymer sheet or film [e.g., polyethylene terephthalate, etc.] - F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract An impact-absorbing member having excellent blade-proof performance is provided. An impact-absorbing plate (1) includes a plurality of stretched resin films (10) stacked and bonded to one another, and the plurality of stretched resin films (10) include a biaxially stretched resin film (12). ## Claims ### Claim 1 An impact-absorbing member comprising: a plurality of stretched resin films stacked and bonded to one another, wherein the plurality of stretched resin films include a biaxially stretched resin film. ### Claim 2 (depends on 1) The impact-absorbing member according to claim 1, wherein the plurality of stretched resin films include the biaxially stretched resin film and a uniaxially stretched resin film. ### Claim 3 (depends on 2) The impact-absorbing member according to claim 2, wherein at least one of principal surfaces of a laminate of the plurality of stretched resin films is formed of the uniaxially stretched resin film. ### Claim 4 (depends on 2) The impact-absorbing member according to claim 2, wherein the plurality of stretched resin films include a plurality of uniaxially stretched resin films whose stretching directions are mutually different. ### Claim 5 (depends on 1) The impact-absorbing member according to claim 1, further comprising at least one of a woven fabric and a braided fabric which is stacked on the plurality of stretched resin films. ### Claim 6 (depends on 1) The impact-absorbing member according to claim 1, wherein the plurality of stretched resin films include a plurality of biaxially stretched resin films Whose stretching directions are mutually inclined. ### Claim 7 (depends on 1) The impact-absorbing member according to claim 1, wherein the stretched resin film includes a crystalline polymer. ### Claim 8 (depends on 1) The impact-absorbing member according to claim 1, wherein a 180° peeling strength per 1 cm of width of the adjacent stretched resin films is 0.1 kgf to 3 kgf. ### Claim 9 (depends on 1) The impact-absorbing member according to claim 1, wherein the adjacent stretched resin films are bonded directly to each other. ### Claim 10 (depends on 1) The impact-absorbing member according to claim 1, further comprising an adhesive layer that bonds the adjacent stretched resin films. ### Claim 11 (depends on 1) The impact-absorbing member according to claim 1, wherein the adjacent stretched resin films are at least partially kept from being not bonded to each other. ### Claim 12 (depends on 11) The impact-absorbing member according to claim 11, wherein the stretched resin films have as through-hole, and the plurality of stretched resin films are bound together by a binding member inserted in the through-hole. ### Claim 13 (depends on 12) The impact-absorbing member according to claim 12, wherein the binding member is formed of a metal. ### Claim 14 (depends on 1) The impact-absorbing member according to claim 1, wherein the stretched resin films are formed of a porous material. ### Claim 15 (depends on 1) The impact-absorbing member according to claim 1, wherein the stretched resin film has a vent hole. ### Claim 16 (depends on 15) The impact-absorbing member according to claim 15, wherein the vent hole provided in one of the stretched resin films and a vent hole provided in a stretched resin film adjacent to the one of the stretched resin films do not overlap each other. ### Claim 17 (depends on 1) Protective clothing comprising: the impact-absorbing member according to claim 1. ### Claim 18 A method for producing an impact-absorbing member, wherein a plurality of stretched resin films including a biaxially stretched resin film are stacked and thermocompression-bonded to obtain an impact-absorbing member. ### Claim 19 (depends on 1) The impact-absorbing member according to claim 1, further comprising at least one of a woven fabric and a braided fabric which is stacked on the plurality of stretched resin films, wherein the adjacent stretched resin films are partially kept from being not bonded to each other. ### Claim 20 (depends on 18) The method for producing an impact-absorbing member according to claim 18, wherein the impact-absorbing member comprises a plurality of stretched resin films stacked and bonded to one another, and at least one of a woven fabric and a braided fabric which is stacked on the plurality of stretched resin films, and the plurality of stretched resin films include a biaxially stretched resin film, and the adjacent stretched resin films are partially kept from being not bonded to each other.