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公开(公告)号：US10703901B2
公开(公告)日：2020-07-07
申请号：US15761333
申请日：2016-11-16
发明人： Rui Chen , Wen Zhu , Wei Chen , Feng Chen , Xuejun Fu , Donghai Sun , Nanbiao Ye
摘要： The present invention discloses a glass fiber-reinforced flame retardant PBT composition which includes following components in parts by weight: 35 to 71 parts of a PBT resin; 5 to 30 parts of a flame retardant; and 5 to 50 parts of a glass fiber; based on a total weight of the glass fiber-reinforced flame retardant PBT composition, a content of tetrahydrofuran is less than/equal to 500 ppm and more than/equal to 10 ppm. In the present invention, when the content of tetrahydrofuran which is selected to be added in a formula of the glass fiber-reinforced flame retardant PBT composition, is less than/equal to 500 ppm and more than/equal to 10 ppm based on the total weight of the glass fiber-reinforced flame retardant PBT composition, a flowability and injection molding appearance of the glass fiber-reinforced flame retardant PBT composition can be apparently improved.
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公开(公告)号：US20220195176A1
公开(公告)日：2022-06-23
申请号：US17601713
申请日：2020-03-23
发明人： Shaoqiang CAO , Nanbiao YE , Xianbo HUANG , Feng Chen , Xuejun Fu , Quan YU , Chao DING , Zhongquan PENG
摘要： The present invention provides a polyformaldehyde composite material, in parts by weight, including the following components: 70 to 95 parts of a polyformaldehyde; 5 to 20 parts of a SEBS; wherein, the SEBS is acid modified or amine modified. Due to modification by acid or amine, and presence of a polystyrene segment, a compatibility of the SEBS with the polyformaldehyde reduces because of a steric hindrance effect, which reduces an ability of a POM molecular chain to arrange regularly. When injection molded into a product or template, an incompatibility of the material itself will form a micro-rough effect on a surface of the material. When an incident light reaches the micro-rough surface, a reflection direction of the light will change and thus a diffuse reflection occurs, and a low-gloss material is obtained.
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3.发明公开公开(公告)号：US20230391988A1
公开(公告)日：2023-12-07
申请号：US18033806
申请日：2021-03-24
发明人： Wenjie MO , Xianbo HUANG , Nanbiao YE , Wen ZHU , Dejun GONG , Jian FENG , Xuejun Fu
CPC分类号： C08K13/04 , C08J3/203 , C08J7/123 , C08K2003/2241
摘要： Provided is a laser marking shading enhanced PBT composition, comprising, in parts by weight, the following components: 50-80 parts of a PBT resin, 6-20 parts of an opacifying agent, 15-30 parts of fiberglass, 0.1-0.5 parts of an antioxidant, and carbon black accounting for 0.0033-0.033% of the weight of the opacifying agent. In the present invention, when performing compounding with only an opacifying agent and a trace amount of carbon black without the use of an expensive laser marking agent, the composition has the properties of a whiteness value of more than 90, a shading of less than 3 mm, and a color difference value of more than 15 before and after laser marking. Therefore, the composition can be applied in the field of preparing lamp cup housings, capacitors, connectors, or relay articles in the lighting industry.
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公开(公告)号：US20180273745A1
公开(公告)日：2018-09-27
申请号：US15761333
申请日：2016-11-16
发明人： Rui Chen , Wen Zhu , Wei Chen , Feng Chen , Xuejun Fu , Donghai Sun , Nanbiao Ye
摘要： The present invention discloses a glass fiber-reinforced flame retardant PBT composition which includes following components in parts by weight: 35 to 71 parts of a PBT resin; 5 to 30 parts of a flame retardant; and 5 to 50 parts of a glass fiber; based on a total weight of the glass fiber-reinforced flame retardant PBT composition, a content of tetrahydrofuran is less than/equal to 500 ppm and more than/equal to 10 ppm. In the present invention, when the content of tetrahydrofuran which is selected to be added in a formula of the glass fiber-reinforced flame retardant PBT composition, is less than/equal to 500 ppm and more than/equal to 10 ppm based on the total weight of the glass fiber-reinforced flame retardant PBT composition, a flowability and injection molding appearance of the glass fiber-reinforced flame retardant PBT composition can be apparently improved.
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