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公开(公告)号：US20190040163A1
公开(公告)日：2019-02-07
申请号：US16151548
申请日：2018-10-04
发明人： Yukichi Konami , Seiji Tsuchiya , Yuji Kazehaya
摘要： The present invention provides a SMC of which excessive thickening with time is suppressed while of which sufficient initial thickening by an isocyanate-based thickener is maintained, particularly of which a decrease in flowability at the time of molding to be easily actualized in the case of containing an aromatic vinyl compound such as styrene is suppressed, and which exhibits excellent storage stability and moldability, a molding material for obtaining the SMC, and a fiber-reinforced composite material using the SMC. The invention provides a molding material including: a matrix resin composition containing the following Component (A), the following Component (B), the following Component (D) and the following Component (E); and the following Component (C), in which a proportion of the Component (E) with respect to 100 parts by mass of a sum of the Component (A) and the Component (B) is 0.002 part by mass or more and 0.08 part by mass or less: Component (A): a compound having either or both of a hydroxyl group and a carboxyl group and a polymerizable unsaturated group, Component (B): an aromatic vinyl compound, Component (C): a reinforcing fiber bundle having a fiber length of 5 mm or more and 120 mm or less, Component (D): an isocyanate compound, and Component (E): a metal chelate compound.
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公开(公告)号：US10899856B2
公开(公告)日：2021-01-26
申请号：US16151548
申请日：2018-10-04
发明人： Yukichi Konami , Seiji Tsuchiya , Yuji Kazehaya
IPC分类号： C08F12/08 , C08J5/04 , C08J5/24 , C08F283/01 , C08G18/79 , C08G18/68 , C08F2/44 , C08G18/22 , C08J5/10 , C08K3/10 , C08K3/11 , C08K3/04 , C08K7/02 , C08F20/18 , C08F20/32 , C08K5/56 , C08F220/30
摘要： The present invention provides a SMC of which excessive thickening with time is suppressed while of which sufficient initial thickening by an isocyanate-based thickener is maintained, particularly of which a decrease in flowability at the time of molding to be easily actualized in the case of containing an aromatic vinyl compound such as styrene is suppressed, and which exhibits excellent storage stability and moldability, a molding material for obtaining the SMC, and a fiber-reinforced composite material using the SMC. The invention provides a molding material including: a matrix resin composition containing the following Component (A), the following Component (B), the following Component (D) and the following Component (E); and the following Component (C), in which a proportion of the Component (E) with respect to 100 parts by mass of a sum of the Component (A) and the Component (B) is 0.002 part by mass or more and 0.08 part by mass or less: Component (A): a compound having either or both of a hydroxyl group and a carboxyl group and a polymerizable unsaturated group, Component (B): an aromatic vinyl compound, Component (C): a reinforcing fiber bundle having a fiber length of 5 mm or more and 120 mm or less, Component (D): an isocyanate compound, and Component (E): a metal chelate compound.
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公开(公告)号：US20230080782A1
公开(公告)日：2023-03-16
申请号：US17903619
申请日：2022-09-06
发明人： Yukichi Konami
摘要： The present disclosure relates to a CFRP structural body having improved flame retardancy, and a carbon fiber prepreg capable of giving a CFRP structural body having improved flame retardancy.
A CFRP structural body comprising CFRP, in which the CFRP structural body is molded from a carbon fiber prepreg comprising a carbon fiber mat formed of chopped carbon fiber bundles with a filament count of 3K or less impregnated with a resin composition, a carbon fiber content of the CFRP is 60% by mass or more, and the CFRP structural body does not have a portion with a thickness of less than 4 mm; and a prepreg comprising a carbon fiber mat impregnated with a resin composition, in which the carbon fiber mat is formed of chopped carbon fiber bundles with filament counts of 3K or less, and a carbon fiber content of the prepreg is 60% by mass or more.
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