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1. 发明公开

EP4378672A1 METHOD OF PRODUCING A WIND TURBINE BLADE USING A HYDROLYSIS REACTION 审中-公开
公开(公告)号：EP4378672A1
公开(公告)日：2024-06-05
申请号：EP22383165.2
申请日：2022-12-01
申请人： Siemens Gamesa Renewable Energy Innovation & Technology S.L.
发明人： The designation of the inventor has not yet been filed
IPC分类号： B29C70/44 , C08J5/12 , C08J11/26 , B29C65/48
CPC分类号： B29C65/483 , C09J2463/00620130101 , C09J2463/00820130101 , C09J5/02 , C08J11/14 , C08J2363/0020130101 , B29C70/003 , B29L2031/08520130101 , B29D99/0025
摘要： It is described a method of producing a wind turbine blade or a part thereof, the method comprising:
i) providing a wind turbine blade preform that comprises a resin, in particular an epoxy amine resin, with a cleavable functional group, in particular at least one of an acetal and a ketal functional group, at the resin surface; and
ii) processing the resin surface by inducing a hydrolysis reaction with respect to the cleavable functional group. Further, a wind turbine blade and a use of a hydrolysis reaction are described.

2. 发明公开

EP4378669A1 CARBON FIBER-REINFORCED COMPOSITE MATERIAL 审中-公开
公开(公告)号：EP4378669A1
公开(公告)日：2024-06-05
申请号：EP22849418.3
申请日：2022-07-25
申请人： Toray Industries, Inc.
发明人： YAMANE, Takuya , OCHI, Takashi
IPC分类号： B29C70/20 , B29B15/12 , B32B5/28 , B29K105/08
CPC分类号： B29C70/20 , B29K2105/0820130101 , B29B15/12 , B32B5/28
摘要： [Problem] A problem to be addressed by the present invention is to provide a CFRP with a low risk of edge glow by virtue of controlling the structure of the CFRP and without relying on expensive electroconductive particles. In other words, provided is a CFRP such that the risk of edge glow is greatly decreased, even in a case where electroconductive particles are used in an amount equal to or smaller than in a conventional technology. Further provided is a CFRP such that the risk of edge glow is greatly decreased without using electroconductive particles.
[Solution] A carbon-fiber-reinforced composite material including carbon fiber sheets containing unidirectionally arranged carbon fibers, laminated multidirectionally one on another, and impregnated with a matrix resin, which is cured; wherein, assuming that a region in which the carbon fibers have the same angle of fiber orientation consecutively in the thickness direction is defined as a Layer, and that, when the Layer is composed of a plurality of regions having a given thickness, and having different carbon fiber volume content factors (Vcf), each of the regions having a given thickness is defined as a Sublayer, the carbon fiber sheet contains a specific Layer that satisfies (1) to (3), and the thickness of a resin portion between the specific Layer and at least one Layer adjacent to the specific Layer is 5 µm or less; (1) the average Vcf of the Layer (hereinafter referred to as the Layer average Vcf) is 50% or more, (2) as both outermost parts of the Layer, Sublayers each having a Vcf the ratio of which to the Layer average Vcf is 0.5 or more (hereinafter, such a Sublayer is referred to as a high-Vcf Sublayer) are disposed, wherein each average Vcf is higher than the Layer average Vcf, and (3) between the high-Vcf Sublayers as both outermost parts of the Layer, a Sublayer having a Vcf the ratio of which to the Layer average Vcf is less than 0.5 (hereinafter, such a Sublayer is referred to as a low-Vcf Sublayer) exists.

4. 发明授权

EP4139510B1 MULTI-MATERIAL FIBERS AND METHODS OF MANUFACTURING THE SAME 有权
公开(公告)号：EP4139510B1
公开(公告)日：2024-06-05
申请号：EP21725619.7
申请日：2021-04-21
IPC分类号： B29C70/02
CPC分类号： D01D5/00 , B29C70/88 , B29C70/021

5. 发明授权

EP3753699B1 SYSTEM AND METHOD FOR MANUFACTURING A COMPOSITE ASSEMBLY 有权
公开(公告)号：EP3753699B1
公开(公告)日：2024-06-05
申请号：EP20168104.6
申请日：2020-04-03
IPC分类号： B29C70/46 , B29C70/30 , B29D99/00 , B29C70/34 , B29C70/54 , B29C33/30 , B29C53/04 , B29C31/08 , B29L31/00
CPC分类号： B29C33/307 , B29C33/308 , B29C70/462 , B29L2031/00320130101 , B29C70/30 , B29D99/0007 , B29C31/08 , B29C70/345 , B29C70/541 , B29D99/0014 , B29C53/04 , B29D99/0003

6. 发明公开

EP4375040A1 METHOD OF SUPPORTING A FACESHEET ON A SUPPORT STRUCTURE WITH DIFFERING AMOUNTS OF EXPANSION 审中-公开
公开(公告)号：EP4375040A1
公开(公告)日：2024-05-29
申请号：EP23211615.2
申请日：2023-11-22
申请人： Spirit AeroSystems, Inc.
发明人： WADSWORTH, Mark Anthony , FIEGENBAUM, Carl Ray
IPC分类号： B29C35/02 , B29C33/02 , B29C33/06 , B29C33/30 , B29C33/38 , B29C35/08 , B29C70/30
CPC分类号： B29C2035/021120130101 , B29C35/02 , B29C2035/081120130101 , B29C33/02 , B29C33/308 , B29C33/3828 , B29C70/30
摘要： A composite laminate heating tool broadly comprising a substructure, a facesheet, and number of expansion joints. The substructure supports the facesheet but does not need to have the same or a similar CTE as the facesheet because the facesheet is free to expand relative to the substructure. The expansion joints provide an interface between the facesheet and the substructure so that the facesheet can thermally expand relative to the substructure while being fully supported by the substructure. Each expansion joint includes a guide attached to the substructure and a support member translatable relative to the guide and aligned radially from a centroid or center of expansion of the facesheet so as to have a single degree of freedom.

7. 发明授权

EP4139108B1 PREPARATION OF A FIBER-REINFORCED IMPLANT 审中-实审
公开(公告)号：EP4139108B1
公开(公告)日：2024-05-29
申请号：EP20721199.6
申请日：2020-04-22
IPC分类号： B29C45/14 , B29C43/18 , B29C70/68 , B29C70/70 , B29C70/72 , A61L27/40
CPC分类号： B29C70/68 , B29C70/70 , B29C70/72 , B29C45/14786 , B29C43/18 , B29K2101/1220130101 , B29K2701/1220130101 , B29L2031/753220130101 , A61L31/126 , A61L31/127 , A61L31/128 , A61L31/129 , B29C45/14549 , B29L2001/00720130101 , B29L2007/00220130101

8. 发明授权

EP3917764B1 IMPACT FORMING OF THERMOPLASTIC COMPOSITES 有权
公开(公告)号：EP3917764B1
公开(公告)日：2024-05-29
申请号：EP20748213.4
申请日：2020-01-31
IPC分类号： B29C70/50 , B29C70/54 , B29C65/48 , B29C37/00 , D04H18/02 , B32B5/06
CPC分类号： B24C1/10 , B29C70/30 , B29C66/41 , B29C66/1122 , B29C66/721 , B29C66/8362 , B29C65/08 , B29C66/81465 , B29C65/40 , B29C65/02 , B29C65/4815 , B29C65/524 , B29C66/91221 , B29C66/91216 , B29C66/91641 , B29C66/95 , B29C66/343 , B29C66/9672 , B29C66/71 , B29C66/919 , B29C66/91943 , B29C66/929 , B29C66/81423

9. 发明授权

EP4112282B1 SHAPING METHOD AND SHAPING DEVICE 审中-实审
公开(公告)号：EP4112282B1
公开(公告)日：2024-05-22
申请号：EP22175760.2
申请日：2022-05-27
IPC分类号： B29C70/44 , B29C70/54 , B29C70/30 , B29C70/34
CPC分类号： B29C70/44 , B29C70/549 , B29C70/302 , B29C70/342

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