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公开(公告)号：US20230024056A1
公开(公告)日：2023-01-26
申请号：US17858565
申请日：2022-07-06
发明人： Jin Young Yoon , Hee Joon Lee , Dong Eun Cha , Sun Jun Kwon , Chun Ho Park , Seung Ryong Jeong , Seok Jin Yong , Hyung Tak Lee
IPC分类号： C08L23/16
摘要： The present disclosure provides a thermoplastic resin composition having high rigidity and a low coefficient of linear thermal expansion and a molded article including the same. The thermoplastic resin composition includes a first propylene-ethylene copolymer, a second propylene-ethylene copolymer, a thermoplastic elastomer, an inorganic filler, and a sodium-phosphate-based nucleating agent as appropriate, and thus a molded article produced therefrom can exhibit improved mechanical rigidity, impact resistance, and dimensional stability. Even when formed to a low thickness for weight reduction, the molded article can be imparted with excellent processability, high tensile strength, a high flexural modulus, and high impact strength.
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公开(公告)号：US20230017798A1
公开(公告)日：2023-01-19
申请号：US17858378
申请日：2022-07-06
发明人： Jin Young Yoon , Hee Joon Lee , Dong Eun Cha , Sun Jun Kwon , Chun Ho Park , Seung Ryong Jeong , Kyung Hwan Lim , Eun Hwa Jang
IPC分类号： C08L23/16
摘要： The present disclosure provides a thermoplastic resin composition having high rigidity and a low coefficient of linear thermal expansion and a molded article including the same. Specifically, the thermoplastic resin composition includes a base resin including at least two polypropylene-based resins having different melt indexes, an elastomer having a melt index (190° C., 2.16 kg) of 20 g/10 min to 35 g/10 min as measured by ASTM D1238, and inorganic particles, and has a flexural modulus (FM) of 2,500 MPa or more and a coefficient of linear thermal expansion (CLTE) of 60 μm/m° C. or less.
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公开(公告)号：US20230020121A1
公开(公告)日：2023-01-19
申请号：US17810878
申请日：2022-07-06
发明人： Jin Young Yoon , Hee Joon Lee , Dong Eun Cha , Sun Jun Kwon , Chun Ho Park , Seung Ryong Jeong , Jin Bo Chae
摘要： The present disclosure provides a thermoplastic resin composition having high rigidity and a low coefficient of linear thermal expansion and a molded article including the same. Specifically, the thermoplastic resin composition includes a polypropylene composite resin including high-crystalline polypropylene and the like, an elastomer, and an inorganic filler.
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公开(公告)号：US20230016858A1
公开(公告)日：2023-01-19
申请号：US17810989
申请日：2022-07-06
发明人： Jin Young Yoon , Hee Joon Lee , Dong Eun Cha , Sun Jun Kwon , Chun Ho Park , Seung Ryong Jeong , Kwan Suk Ryu , Tae Kyung Lee
摘要： The present disclosure provides a thermoplastic resin composition having high rigidity and a low coefficient of linear thermal expansion and a molded article including the same. Specifically, the thermoplastic resin composition includes a first polypropylene resin having crystallinity of 50% to 80%, a second polypropylene resin having a coefficient of linear thermal expansion of 70 μm/m° C. to 90 μm/m° C., an elastomer, and an inorganic filler.
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公开(公告)号：US11820884B2
公开(公告)日：2023-11-21
申请号：US17810989
申请日：2022-07-06
发明人： Jin Young Yoon , Hee Joon Lee , Dong Eun Cha , Sun Jun Kwon , Chun Ho Park , Seung Ryong Jeong , Kwan Suk Ryu , Tae Kyung Lee
CPC分类号： C08L23/12 , C08L23/16 , C08L2205/025
摘要： The present disclosure provides a thermoplastic resin composition having high rigidity and a low coefficient of linear thermal expansion and a molded article including the same. Specifically, the thermoplastic resin composition includes a first polypropylene resin having crystallinity of 50% to 80%, a second polypropylene resin having a coefficient of linear thermal expansion of 70 μm/m·° C. to 90 μm/m·° C., an elastomer, and an inorganic filler.
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公开(公告)号：US20230020477A1
公开(公告)日：2023-01-19
申请号：US17810994
申请日：2022-07-06
发明人： Jin Young Yoon , Hee Joon Lee , Dong Eun Cha , Sun Jun Kwon , Chun Ho Park , Seung Ryong Jeong , Jeong Gil Ko , Yoon Hwan Lee
摘要： The present disclosure provides a thermoplastic resin composition having high rigidity and a low coefficient of linear thermal expansion and a molded article including the same. Specifically, the thermoplastic resin composition includes a polypropylene-based resin having an isotactic pentad fraction of 96% or more as measured by 13C-NMR, a thermoplastic elastomer, an inorganic filler having an average particle diameter of 0.1 μm to 5 μm, and a compatibilizer, and has a flexural modulus of 2,500 MPa or more and a coefficient of linear thermal expansion of 60 μm/m·° C. or less.
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公开(公告)号：US20170157817A1
公开(公告)日：2017-06-08
申请号：US15152735
申请日：2016-05-12
发明人： Seung Mok Lee , Kwang Jae Choi , Nam Cheol Kim , Seung Ryong Jeong , Sung Jun Hong , Woo Jin Jung , Chun Ho Park
CPC分类号： B29C45/14 , B29C45/14336 , B29C45/14565 , B29K2023/12 , B29K2105/12 , B29K2307/04 , B29K2309/08 , B60R3/002 , B60Y2304/03 , B60Y2304/05
摘要： A method of making a side step of a vehicle includes a bracket that is mounted to a vehicle body and an insert main body that bears weight of passengers. The bracket and the insert main body are integrally provided by using a CFT material through insert-molding, and an injection molding resin is coupled to all over the insert main body where the bracket is coupled through insert-molding so as to form a main frame of the side step.
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公开(公告)号：US10307946B2
公开(公告)日：2019-06-04
申请号：US15152735
申请日：2016-05-12
发明人： Seung Mok Lee , Kwang Jae Choi , Nam Cheol Kim , Seung Ryong Jeong , Sung Jun Hong , Woo Jin Jung , Chun Ho Park
IPC分类号： B60R3/00 , B29C45/14 , B29K23/00 , B29K105/12 , B29K307/04 , B29K309/08
摘要： A method of making a side step of a vehicle includes a bracket that is mounted to a vehicle body and an insert main body that bears weight of passengers. The bracket and the insert main body are integrally provided by using a CFT material through insert-molding, and an injection molding resin is coupled to all over the insert main body where the bracket is coupled through insert-molding so as to form a main frame of the side step.
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