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公开(公告)号：EP4163097A1
公开(公告)日：2023-04-12
申请号：EP21816837.5
申请日：2021-06-07
摘要： The present invention relates to a thick molded body which includes an addition reaction type polyimide resin and has a thickness of 5 mm or more, the molded body having no surface defects, such as voids or fissures, and no internal voids, and a method for producing the molded body. A resin molded body includes an addition reaction type polyimide resin and is formed by; holding a prepolymer of an addition reaction type polyimide resin at a temperature equal to or higher than a viscosity increase starting temperature of the addition reaction type polyimide resin and increasing a melt viscosity at a temperature lower by 10°C than the viscosity increase starting temperature to 70 to 900 kPa · s; grinding and mixing the addition reaction type polyimide resin to form a molding precursor; and shaping the molding precursor at a temperature equal to or higher than a heat-curing temperature of the addition reaction type polyimide resin. The resin molded body has a thickness of 5 mm or more, and a number of defects having a size of 0.5 mm or more present on an entire surface of the molded body is 1 per 100 cm 2 or less.
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公开(公告)号：EP3611201A1
公开(公告)日：2020-02-19
申请号：EP18783930.3
申请日：2018-04-11
IPC分类号： C08F299/02 , B29C43/34 , C08F2/44 , C08J5/24 , B29K79/00 , B29K105/12
摘要： The present invention provides a composition that can be molded by compressing at a low pressure even when the content of an addition-reaction type polyimide resin in use is considerably decreased, and that can make a fiber-reinforced molded article excellent in sliding performance and further shape stability during molding. The composition of the present invention contains 40 to 350 parts by weight of a functional fiber and 100 to 600 parts by weight of an inorganic microparticulate filler having an average particle diameter of less than 15 µm per 100 parts by weight of the addition-reaction type polyimide resin.
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公开(公告)号：EP3467328A1
公开(公告)日：2019-04-10
申请号：EP17806805.2
申请日：2017-06-01
摘要： The present invention relates to a structure including a sliding layer that is formed on a roughened surface of a substrate and that has an excellent slidability, and a method for producing the structure. The sliding layer is formed of a powder of a carbon-composition-containing resin composition filled in at least concavities of roughness on the roughened surface.
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4.发明公开FIBER-REINFORCED POLYIMIDE RESIN MOLDED ARTICLE AND METHOD FOR PRODUCING SAME 审中-公开纤维增强聚酰亚胺树脂模塑制品及其制造方法
公开(公告)号：EP3192827A1
公开(公告)日：2017-07-19
申请号：EP15839594.7
申请日：2015-09-14
CPC分类号： B29C70/42 , B29B7/005 , B29B7/286 , B29B7/82 , B29B7/90 , B29C43/02 , B29K2079/08 , B29K2105/12 , C08J5/04 , C08J5/042 , C08J2379/08 , C08K7/06 , C08L79/08
摘要： A fiber-reinforced polyimide resin molded article and a production process therefor.
After a prepolymer of an addition reaction type polyimide resin and functional fibers are dispersed and kneaded together, the kneaded product is kept at a temperature not lower than the heat curing start temperature of the reaction type polyimide resin for a fixed amount of time or mixed with a thickener to increase its viscosity, and shaped at a temperature not lower than the heat curing start temperature of the reaction type polyimide resin to obtain a molded article having excellent sliding performance with a limit PV value of not less than 3, 000 kPa · m/s and excellent shape stability during molding and containing the functional fibers dispersed in the polyimide resin.摘要翻译： 纤维增强聚酰亚胺树脂成型体及其制造方法。 在将加成反应型聚酰亚胺树脂和功能性纤维的预聚物分散混炼后，将混炼物保持在反应型聚酰亚胺树脂的热固化开始温度以上的温度下一定时间，或者与 增稠剂以增加其粘度，并且在不低于反应型聚酰亚胺树脂的热固化开始温度的温度下成形，以获得具有优异滑动性能并具有不小于3,000kPa·m的极限PV值的成型制品 / s，成型时的形状稳定性优异，且含有分散在聚酰亚胺树脂中的功能性纤维。
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公开(公告)号：EP3892672A1
公开(公告)日：2021-10-13
申请号：EP19894001.7
申请日：2019-12-09
IPC分类号： C08J5/04
摘要： The present invention provides a molding precursor for a fiber-reinforced polyimide resin molded article, which is formed by impregnating a functional fiber with an addition-reaction type polyimide resin. The molding precursor has a melt viscosity in the range of 300 to 3200 kPa·s under conditions of keeping for 1 to 10 minutes at a temperature 5 to 20°C lower than the thickening-start temperature so as to effectively prevent a fiber-reinforced polyimide resin molded article from warping. The present invention provides also a method for producing the molding precursor.
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公开(公告)号：EP3718765A1
公开(公告)日：2020-10-07
申请号：EP18884699.2
申请日：2018-11-27
摘要： The present invention relates to a fiber-reinforced laminate including at least a layer of woven fibers and a layer of short fiber-containing resin composition, where the short fiber-containing resin composition is present in gaps formed by crossing fiber bundles composing the woven fibers, thereby imparting excellent slidability and further both wear resistance and strength.
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