公开(公告)号：US20180179326A1

公开(公告)日：2018-06-28

申请号：US15786084

申请日：2017-10-17

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  University of Seoul Industry Cooperation Foundation

发明人： Ji Wan Kim ,  Jung Wook Lee ,  Gi Wook Sung ,  Seok Kyeong Kim ,  Jin Seok Kim ,  Jung Hyeun Kim

IPC分类号： C08G18/63 ,  C08J9/12 ,  C08J9/00 ,  C08G18/12 ,  C08G18/48

CPC分类号： C08G18/632 ,  C08G18/12 ,  C08G18/3275 ,  C08G18/4072 ,  C08G18/48 ,  C08G18/6688 ,  C08G18/7621 ,  C08G18/7664 ,  C08G2101/00 ,  C08G2350/00 ,  C08J9/0066 ,  C08J9/125 ,  C08J2205/05 ,  C08J2375/08

摘要： A polyurethane foam composition includes a polyol mixture that includes polyether polyol and polymer polyol, an isocyanate compound, a catalyst consisting of a resinizing catalyst and a foaming catalyst, a foaming agent, a chain extender, and a surfactant. The polymer polyol contained in the polyol mixture is present in an amount of 1% to 70% by weight, based on the total weigh of the polyol mixture. The polyether polyol has an average functional group number of 2 to 4 and a mass average molecular weight of 4000 to 8000. The polymer polyol is grafted or dispersed with 20 to 60 wt % of a solid polymer comprising a styrene monomer and acrylonitrile at a weight ratio of 9:1, in polyether polyol having an average functional group number of 2 to 4 and a mass average molecular weight of 3000 to 6000.

公开(公告)号：US20170306538A1

公开(公告)日：2017-10-26

申请号：US15294589

申请日：2016-10-14

申请人： Hyundai Motor Company ,  Kia Motors Corporation

发明人： Jung Wook Lee

IPC分类号： D04H3/018 ,  D04H3/12 ,  D04H3/10 ,  D04H3/007 ,  D04H3/011 ,  B60R13/08 ,  G10K11/162 ,  D01D5/34

CPC分类号： D04H3/018 ,  B60R13/0861 ,  D01D5/253 ,  D01D5/34 ,  D04H1/4282 ,  D04H1/4326 ,  D04H1/4391 ,  D04H1/46 ,  D04H3/007 ,  D04H3/011 ,  D04H3/102 ,  D04H3/105 ,  D04H3/12 ,  D10B2321/021 ,  D10B2321/022 ,  D10B2331/04 ,  D10B2505/12 ,  G10K11/162

摘要： A non-woven fabric board for an exterior of a vehicle and a method for manufacturing same are provided. The non-woven fabric board includes a matrix fiber having a non-circular cross-section and an adhesive fiber having a non-circular cross-section, and the matrix fiber is included in an amount of 50 wt % or greater based on the total weight of the non-woven fiber board. Each of the matrix fiber and the adhesive fiber have a linear density of about 6 to 15 denier and a degree of non-circular shape of about 1.3 to 3.0.The non-woven fabric board for an exterior of a vehicle has a substantially increased specific surface area by using the non-circular cross-section fibers, improved adhesion efficiency between fibers, and substantially improved mechanical properties. In addition, heat moldability thereof is improved, weight thereof is reduced, and the sound-absorbing performance thereof is substantially improved.

公开(公告)号：US11786852B2

公开(公告)日：2023-10-17

申请号：US16990449

申请日：2020-08-11

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  Seoul National University R&DB Foundation

发明人： Jung Wook Lee ,  Seong Je Kim ,  Hyeong Rae Lee ,  Yeon June Kang ,  Sung Soo Yang

IPC分类号： B01D39/16 ,  G16C20/30 ,  G16C60/00 ,  G01N23/046

CPC分类号： B01D39/1692 ,  G01N23/046 ,  G16C20/30 ,  G16C60/00

摘要： The present invention relates to a method for predicting physical properties of an amorphous porous material which may predict an acoustic physical property value and an absorption coefficient from parameters of an amorphous porous material, and may estimate the acoustic characteristics with the amorphous porous material which is an amorphous specimen even without separately producing a formalized specimen such as a cylindrical specimen or a flat specimen. Further, the method for predicting physical properties of the amorphous porous material may estimate the acoustic physical properties through the analysis of a three-dimensional pore connection structure, which is a microstructure of an amorphous specimen, even without acoustic impedance, thereby estimating the acoustic physical properties which accurately reflect the characteristics of the actual specimen.

公开(公告)号：US11746203B2

公开(公告)日：2023-09-05

申请号：US17000640

申请日：2020-08-24

申请人： HYUNDAI MOTOR COMPANY ,  KIA Motors Coporation ,  PIUSYS CO., LTD. ,  NVH KOREA, INC.

发明人： Jung Wook Lee ,  Se Hoon Kim ,  Ji Wan Kim ,  Jin Hyung Lee ,  Seong Je Kim ,  Dae Yong Kim ,  Jong Hyun Ryu ,  Myung Sik Lee ,  Min Seo Wu

IPC分类号： B29C44/02 ,  C08G18/08 ,  C08G18/10 ,  C08G18/16 ,  C08G18/18 ,  C08G18/20 ,  C08G18/32 ,  C08G18/48 ,  C08G18/66 ,  C08G18/70 ,  C08J9/00 ,  C08J9/04 ,  G10K11/162

CPC分类号： C08J9/0061 ,  C08G18/10 ,  C08G18/18 ,  C08G18/3203 ,  C08G18/4804 ,  C08G18/70 ,  C08G2110/005 ,  C08G2110/0058 ,  C08G2350/00 ,  C08J2375/08

摘要： Disclosed are a polyurethane foam composition for sound-absorbing materials, a method for manufacturing a polyurethane foam and a polyurethane foam manufactured using the method. Particularly, disclosed are a composition containing a polyol mixture including a polyol and an additive, and isocyanate, and the manufacture of a low-density polyurethane foam for sound-absorbing materials, which is imparted with improved appearance formability, reduced smell and enhanced sound absorption performance by controlling the content of the composition and the conditions for foaming the composition.

公开(公告)号：US20220118749A1

公开(公告)日：2022-04-21

申请号：US17217844

申请日：2021-03-30

申请人： Hyundai Motor Company ,  Kia Motors Corporation

发明人： Seong Je Kim ,  Ji Wan Kim ,  Jung Wook Lee ,  Keun Young Kim

IPC分类号： B32B27/32 ,  B32B27/08 ,  B32B27/20 ,  B32B5/16 ,  B32B5/02

摘要： A sound-insulating material includes 16 to 24% by weight of a base resin having a thermoplastic olefin (TPO) and a polyolefin elastomer (POE) and 76 to 84% by weight of an inorganic filler. The sound-insulating material can be used, for example, as part of a sound-absorbing and sound-insulating material in a vehicle.

公开(公告)号：US20170342615A1

公开(公告)日：2017-11-30

申请号：US15672242

申请日：2017-08-08

申请人： Hyundai Motor Company ,  Kia Motor Company ,  Iksung Co., Ltd.

发明人： Min Su Kim ,  Jung Wook Lee ,  Jae Chan Lim ,  Won Jin Seo ,  Hyeon Ho Kim ,  Jong Hyuk Cha ,  Ki Wook Yang ,  Bong Jik Lee

IPC分类号： D04H1/56

CPC分类号： D04H1/56 ,  Y10T442/601

摘要： Disclosed is a melt-blown fiber web with improved concentration force and elasticity, whereby a melt-blown fabric is cut and sealed at predetermined intervals using knives having arbitrary patterns so that concentration force and elasticity of the melt-blown fiber web can be improved without degrading the inherent function of the fiber web. Further disclosed are a method and apparatus for manufacturing the melt-blown fiber web. The melt-blown fiber web includes thermoplastic filaments, wherein cutting portions and sealing portions are arranged on top and bottom surfaces of the fiber web at predetermined intervals along a thickness of the fiber web so that a concentration force and elasticity of the fiber web are improved.

公开(公告)号：US09715871B2

公开(公告)日：2017-07-25

申请号：US14968417

申请日：2015-12-14

申请人： Hyundai Motor Company ,  Kia Motors Corporation

发明人： Jung Wook Lee ,  Kil Bu Joo ,  Won Jin Seo ,  Dae Won Seo ,  Bong Hyun Park ,  Pan Ki Jung ,  Kie Youn Jeong ,  Seung Soo Ryu ,  Keun Young Kim

IPC分类号： B32B27/32 ,  G10K11/168 ,  B32B5/02 ,  B32B5/18 ,  B32B5/24 ,  B32B5/26 ,  B32B27/06 ,  B32B27/12 ,  B32B27/30 ,  B60R13/08

CPC分类号： G10K11/168 ,  B32B5/022 ,  B32B5/18 ,  B32B5/245 ,  B32B5/26 ,  B32B27/065 ,  B32B27/12 ,  B32B27/306 ,  B32B27/32 ,  B32B2262/0246 ,  B32B2262/0253 ,  B32B2262/0269 ,  B32B2262/0284 ,  B32B2262/04 ,  B32B2262/12 ,  B32B2274/00 ,  B32B2307/102 ,  B32B2367/00 ,  B32B2605/003 ,  B32B2605/08 ,  B60R13/08 ,  B60R13/0838

摘要： The present invention provides a multilayer dash isolation pad having superior formability and sound absorption performance. The multilayer dash isolation pad includes a decoupler and a sound absorption and insulation layer. The decoupler is a soft felt manufactured from urethane foam or octalobal cross-section fiber, and the sound absorption and insulation layer includes a compressed felt manufactured from octalobal cross-section fibers. In particular, the shape factor (α) of the octalobal cross-section fiber is 2.0 to 2.7. Particularly, the multilayer dash isolation pad according to the present invention does not decrease thickness or be contracted upon press molding after pre-heating felt, such that superior formability in components can be obtained and a sound absorption coefficient may be enhanced without increase in the weights and thicknesses of the decoupler and the sound absorption and insulation layer.

公开(公告)号：US20150204066A1

公开(公告)日：2015-07-23

申请号：US14673849

申请日：2015-03-30

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  Toray Chemical Korea Inc.

发明人： Hyo Seok Kim ,  Do Hyun Kim ,  Chi Hun Kim ,  Kie Youn Jeong ,  Bong Hyun Park ,  Jung Wook Lee

IPC分类号： E04B1/84 ,  D04H1/542 ,  D04H1/4391

CPC分类号： E04B1/84 ,  D01D5/253 ,  D04H1/4391 ,  D04H1/541 ,  D04H1/542 ,  G10K11/162

摘要： Disclosed are a sound-absorbing material with improved sound-absorbing performance and a method for manufacturing the sound-absorbing material. The sound-absorbing material may improve sound absorption coefficient and transmission loss by forming large surface area and air layer, so as to induce viscosity loss of incident sound energy, and may provide light-weight design of a sound absorbing part or material since sound-absorbing performance may be substantially improved using reduced amount of fiber. Further, the sound-absorbing material may improve sound-absorbing performance by using binder fiber having rebound resilience, so as to maintain enough strength between fibers and also to maximize viscosity loss of sound energy transmitted to fiber structure.

摘要翻译： 公开了具有改善的吸声性能的吸声材料和吸声材料的制造方法。 吸声材料可以通过形成大的表面积和空气层来改善吸声系数和透射损失，从而引起入射声能的粘度损失，并且可以提供吸音部件或材料的轻量化设计， 使用减少量的纤维可以显着改善吸收性能。 此外，吸声材料可以通过使用具有回弹性的粘合纤维来改善吸音性能，以便在纤维之间保持足够的强度，并且还使传播到纤维结构的声能的粘度损失最大化。

公开(公告)号：US20140127960A1

公开(公告)日：2014-05-08

申请号：US14070844

申请日：2013-11-04

申请人： Hyundai Motor Company ,  Iksung Co., Ltd. ,  Kia Motors Corporation

发明人： Min Su Kim ,  Jung Wook Lee ,  Jae Chan Lim ,  Won Jin Seo ,  Hyeon Ho Kim ,  Jong Hyuk Cha ,  Ki Wook Yang ,  Bong Jik Lee

IPC分类号： D04H1/56

CPC分类号： D04H1/56 ,  Y10T442/601

摘要： Disclosed is a melt-blown fiber web with improved concentration force and elasticity, whereby a melt-blown fabric is cut and sealed at predetermined intervals using knives having arbitrary patterns so that concentration force and elasticity of the melt-blown fiber web can be improved without degrading the inherent function of the fiber web. Further disclosed are a method and apparatus for manufacturing the melt-blown fiber web. The melt-blown fiber web includes thermoplastic filaments, wherein cutting portions and sealing portions are arranged on top and bottom surfaces of the fiber web at predetermined intervals along a thickness of the fiber web so that a concentration force and elasticity of the fiber web are improved.

摘要翻译： 公开了一种具有改进的浓缩力和弹性的熔喷纤维网，由此使用具有任意图案的刀以预定间隔切割并密封熔喷织物，从而可以提高熔喷纤维网的集中力和弹性，而无需 降低纤维网的固有功能。 进一步公开了用于制造熔喷纤维网的方法和设备。 熔喷纤维网包括热塑性长丝，其中切割部分和密封部分沿着纤维网的厚度以预定间隔布置在纤维网的顶表面和底表面上，使得纤维网的集中力和弹性得到改善 。