[특허]Fiber reinforced structural element

Milliken & Company

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Fiber reinforced structural element

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-005/02 B32B-027/12 B32B-027/08 B32B-005/26 B32B-007/08
출원번호	US-0265676 (2014-04-30)
등록번호	US-9643382 (2017-05-09)
발명자 / 주소	Eleazer, Howell B.
출원인 / 주소	Milliken & Company
대리인 / 주소	Brickey, Cheryl J.
인용정보	피인용 횟수 : 0 인용 특허 : 47

초록
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A fiber reinforced structural element comprising a thermoplastic fiber reinforced member, a non-thermoplastic fiber reinforced member, and a multi-layer woven tie layer. The thermoplastic fiber reinforced member contains at least one layer of thermoplastic fibers and the non-thermoplastic fiber reinforced member contains at least one layer of non-thermoplastic fibers. The multi-layer woven tie layer contains at least a first woven ply and a second woven ply, where the woven plies are integrated through combined portions formed by interlacing warps or wefts of adjacent woven plies. The multi-layer woven tie layer is oriented such that the upper surface of the multi-layer woven tie layer which is predominately thermoplastic fibers is adjacent the thermoplastic fiber reinforced member and the lower surface of the multi-layer woven tie layer which is predominately non-thermoplastic fibers is adjacent the non-thermoplastic fiber reinforced member.

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1. A fiber reinforced structural element comprising: a) a first thermoplastic fiber reinforced member, wherein the thermoplastic fiber reinforced member comprises at least one layer of thermoplastic fibers, wherein at least some of the thermoplastic fibers within each layer are fused to other thermoplastic fibers within the same layer, and wherein at least some of the thermoplastic fibers within each layer are fused to thermoplastic fibers within adjacent layers;b) a first non-thermoplastic fiber reinforced member, wherein the non-thermoplastic fiber reinforced member comprises at least one layer of non-thermoplastic fibers and a hardened matrix at least partially surrounding the non-thermoplastic fibers,c) a first multi-layer woven tie layer having an upper surface and a lower surface and comprising at least a first woven ply and a second woven ply, each of the woven plies comprising warp yarns in the warp direction and weft yarns in a weft direction perpendicular to the warp direction interwoven with the warp yarns,wherein at least some of the warp or weft yarns in the first woven ply comprise thermoplastic fibers, wherein at least some of the warp or weft yarns in the second ply comprise non-thermoplastic fibers, wherein the woven plies are integrated through combined portions formed by interlacing warps or wefts of adjacent woven plies,wherein the upper surface of the multi-layer woven tie layer is predominately thermoplastic fibers and the lower surface of the multi-layer woven tie layer is predominately non-thermoplastic fibers, wherein the upper surface of the multi-layer woven tie layer is adjacent the thermoplastic fiber reinforced member, wherein the lower surface of the multi-layer woven tie layer is adjacent the non-thermoplastic fiber reinforced member,wherein at least some of the thermoplastic fibers of the thermoplastic fiber reinforced thermoplastic member are fused to the thermoplastic fibers on the upper surface of the multi-layer woven tie layer and wherein the hardened matrix of the non-thermoplastic fiber reinforced member at least partially extends around the non-thermoplastic fibers in the lower surface of the multi-layer woven tie layer. 2. The fiber reinforced structural element of claim 1, wherein the thermoplastic fibers in the thermoplastic fiber reinforced member comprise polypropylene. 3. The fiber reinforced structural element of claim 1, wherein the non-thermoplastic fibers in the non-thermoplastic fiber reinforced member comprise carbon fibers. 4. The fiber reinforced structural element of claim 1, wherein the non-thermoplastic fibers in the non-thermoplastic fiber reinforced member comprise glass fibers. 5. The fiber reinforced structural element of claim 1, wherein the hardened matrix in the non-thermoplastic fiber reinforced member comprises an epoxy resin. 6. The fiber reinforced structural element of claim 1, wherein the thermoplastic fibers in the thermoplastic fiber reinforced member and the multi-layer woven tie layer comprise tape fibers. 7. The fiber reinforced structural element of claim 6, wherein the thermoplastic fibers in the thermoplastic fiber reinforced member and the multi-layer woven tie layer comprise multi-layered tape fibers. 8. The fiber reinforced structural element of claim 6, wherein the tape fibers comprise a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer and wherein the covering layers are characterized by a softening temperature below that of the base layer. 9. The fiber reinforced structural element of claim 1, wherein the thermoplastic fiber reinforced member comprises at least 5 layers of thermoplastic fibers. 10. The fiber reinforced structural element of claim 1, wherein the non-thermoplastic fiber reinforced member comprises at least 5 layers of non-thermoplastic fibers. 11. The fiber reinforced structural element of claim 1, wherein the at least one layer of thermoplastic fibers is a woven layer. 12. The fiber reinforced structural element of claim 1, wherein the structural element further comprises: d) a second thermoplastic fiber reinforced member, wherein the second thermoplastic fiber reinforced member comprises multiple layers of thermoplastic fibers, wherein at least some of the thermoplastic fibers within each layer are fused to other thermoplastic fibers within the same layer, and wherein at least some of the thermoplastic fibers within each layer are fused to other thermoplastic fibers within adjacent layers; and,e) a second multi-layer woven tie layer having an upper surface and a lower surface and comprising at least a first woven ply and a second woven ply, each of the woven plies comprising warp yarns in the warp direction and weft yarns in a weft direction perpendicular to the warp direction interwoven with the warp yarns, wherein at least some of the warp or weft yarns in the first woven ply comprise thermoplastic fibers, wherein at least some of the warp or weft yarns in the second ply comprise non-thermoplastic fibers, wherein the woven plies are integrated through combined portions formed by interlacing warps or wefts of adjacent woven plies, wherein the upper surface of the second multi-layer woven tie layer is predominately thermoplastic fibers and the lower surface of the second multi-layer woven tie layer is predominately non-thermoplastic fibers, wherein the upper surface of the second multi-layer woven tie layer is adjacent the second thermoplastic fiber reinforced member, wherein the lower surface of the first multi-layer woven tie layer is adjacent the first non-thermoplastic fiber reinforced member,wherein at least a portion of the thermoplastic fibers of the first thermoplastic fiber reinforced member are fused to the thermoplastic fibers on the upper surface of the first multi-layer woven tie layer, wherein at least a portion of the thermoplastic fibers of the second thermoplastic fiber reinforced member are fused to the thermoplastic fibers on the upper surface of the second multi-layer woven tie layer and wherein the hardened matrix of the first non-thermoplastic fiber reinforced member at least partially extends around the non-thermoplastic fibers in the lower surface of the first multi-layer woven tie layer and in the lower surface of the second multi-layer woven tie layer. 13. The fiber reinforced structural element of claim 1, wherein the structural element further comprises: d) a second non-thermoplastic fiber reinforced member, wherein the second non-thermoplastic fiber reinforced member comprises multiple layers of non-thermoplastic fibers and a hardened matrix at least partially surrounding the non-thermoplastic fibers,e) a second multi-layer woven tie layer having an upper surface and a lower surface and comprising at least a first woven ply and a second woven ply, each of the woven plies comprising warp yarns in the warp direction and weft yarns in a weft direction perpendicular to the warp direction interwoven with the warp yarns, wherein at least some of the warp or weft yarns in the first woven ply comprise thermoplastic fibers, wherein at least some of the warp or weft yarns in the second ply comprise non-thermoplastic fibers, wherein the woven plies are integrated through combined portions formed by interlacing warps or wefts of adjacent woven plies, wherein the upper surface of the second multi-layer woven tie layer is predominately thermoplastic fibers and the lower surface of the second multi-layer woven tie layer is predominately non-thermoplastic fibers, wherein the upper surface of the second multi-layer woven tie layer is adjacent the first thermoplastic fiber reinforced member, wherein the lower surface of the second multi-layer woven tie layer is adjacent the second non-thermoplastic fiber reinforced member,wherein at least a portion of the thermoplastic fibers of the first fiber reinforced thermoplastic member are fused to the thermoplastic fibers on the upper surface of the first multi-layer woven tie layer, wherein at least a portion of the thermoplastic fibers of the first fiber reinforced thermoplastic member are fused to the thermoplastic fibers on the upper surface of the second multi-layer woven tie layer, wherein the hardened matrix of the first non-thermoplastic fiber reinforced member at least partially extends around the non-thermoplastic fibers in the lower surface of the first multi-layer woven tie layer, and wherein the hardened matrix of the second non-thermoplastic fiber reinforced member at least partially extends around the non-thermoplastic fibers in the lower surface of the second multi-layer woven tie layer. 14. A fiber reinforced structural element comprising: a first multi-layer woven tie layer and a second multi-layer tie layer, each layer having an upper surface and a lower surface and comprising at least a first woven ply and a second woven ply, each of the woven plies comprising warp yarns in the warp direction and weft yarns in a weft direction perpendicular to the warp direction interwoven with the warp yarns,wherein at least some of the warp or weft yarns in the first woven ply comprise thermoplastic fibers, wherein at least some of the warp or weft yarns in the second ply comprise non-thermoplastic fibers, wherein the woven plies are integrated through combined portions formed by interlacing warps or wefts of adjacent woven plies,wherein the upper surface of the multi-layer woven tie layers is predominately thermoplastic fibers and the lower surface of the multi-layer woven tie layers is predominately non-thermoplastic fibers, wherein the upper surface of the first multi-layer woven tie layer is adjacent the upper surface of the second multi-layer woven tie layer, and wherein the at least a portion of the thermoplastic fibers on the upper surface of the first multi-layer tie layer are fused to at least a portion of the thermoplastic fibers on the upper surface of the second multi-layer tie layer.

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Fiber reinforced structural element

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Fiber reinforced structural element

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