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公开(公告)号：EP4386050A1
公开(公告)日：2024-06-19
申请号：EP22869104.4
申请日：2022-09-08
发明人： YAN, Kun , XU, Xianjun , JIANG, Sujun , CAO, Min , MAI, Jiehong , YANG, Huixin , JIANG, Zhiqiang
摘要： The present invention relates to a polyester resin composition, a preparation method thereof and use thereof. The polyester resin composition includes a PCT resin, a white pigment, a reinforcing material, a polyester elastomer, and other additives. The polyester resin composition provided by the present invention has a strong binding force with a silica gel; when the polyester resin composition is made into an LED reflecting support, the LED reflecting support is not easy to separate from the silica gel in high temperature and high humidity environments, such that the service life of an LED lamp bead can be effectively prolonged; and meanwhile, the polyester resin composition has good toughness, and would not cause the problem of powder falling under repeated stress.
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2.发明公开
公开(公告)号：EP4406992A1
公开(公告)日：2024-07-31
申请号：EP22871866.4
申请日：2022-09-15
发明人： YAN, Kun , XU, Xianjun , JIANG, Sujun , CAO, Min , MAI, Jiehong , YANG, Huixin , JIANG, Zhiqiang
IPC分类号： C08G69/40 , C08K7/14 , C08K5/5313 , C08K5/3492 , C08L77/06
摘要： Disclosed is a furan diacid-based polyamide resin, which is derived from the following repeating units: (A) 2,5-furandicarboxylic acid, (B) 1,4-cyclohexanedicarboxylic acid, and (C) 1,10-decanediamine, where based on the total molar percentage of the diacid units, (A) accounts for 5-45 mol% of the diacid units. On one hand, by selecting the bio-based 2,5-furandicarboxylic acid, the resin is more environmentally friendly, and has the advantages of a melting point of 290-336°C , low water absorption rate, and good size stability (a water absorption rate lower than that of a polyamide with the same amido bond density); on the other hand, the rigidity of cyclohexane is higher than that of an aromatic ring, such that more hard carbon layers can be formed during combustion. In addition, the furan diacid-based polyamide has a relatively high amido bond density, and can generate a relatively excellent synergistic effect with a flame retardant, such that the flame retardant effect is excellent under the synergistic effect of the two.
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3.发明公开
公开(公告)号：EP4403605A1
公开(公告)日：2024-07-24
申请号：EP22869310.7
申请日：2022-09-15
发明人： YANG, Huixin , HUANG, Xianbo , MAI, Jiehong , JIANG, Sujun , JIANG, Zhiqiang , YAN, Kun , LI, Jianwei , XU, Xianjun
摘要： The present invention provides a PA10T molding composite material that can be used to produce LED display light source reflection supports. The width of the crystallization peak at half height ΔT1/2 is adjusted to 3°C-10°C, the whiteness is adjusted to be less than 26, and the 460 nm light source reflectivity is adjusted to be less than 6.5%, such that the PA10T molding compound has the advantages of low blue light, high contrast, and high grayscale, can satisfy requirements of a packaging process and long-term reliability, and can be used as a packaging product to manufacture high-contrast LED display light source reflection supports applicable in multiple scenarios.
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4.发明公开
公开(公告)号：EP4386052A1
公开(公告)日：2024-06-19
申请号：EP22869311.5
申请日：2022-09-15
发明人： YANG, Huixin , HUANG, Xianbo , MAI, Jiehong , JIANG, Sujun , JIANG, Zhiqiang , YAN, Kun , LI, Jianwei , XU, Xianjun
摘要： The present invention provides a semi-aromatic polyamide molding composite material that can be used for producing an LED display screen light source reflection support. Generally, by selecting a semi-aromatic polyamide resin having a specific repeating unit, and enabling the crystallization peak width at half maximum ΔT1/2 to be 4-11°C, the whiteness to be less than 26.5, the reflectivity under a 460 nm light source to be less than 6% etc., the semi-aromatic polyamide molding composite material has the advantages of reduced blue light, high contrast ratio and high gray scale, and can meet requirements for the packaging process and long-term reliability. The package product can be used for manufacturing high-contrast LED display screen light source refection supports for use in multiple environments.
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5.发明公开
公开(公告)号：EP4389799A1
公开(公告)日：2024-06-26
申请号：EP22871867.2
申请日：2022-09-15
发明人： YAN, Kun , XU, Xianjun , JIANG, Sujun , CAO, Min , MAI, Jiehong , YANG, Huixin , JIANG, Zhiqiang
IPC分类号： C08G69/40 , C08L77/06 , C08K5/5313 , C08K5/3492 , C08K7/14 , C08J5/10
摘要： The present invention discloses a furan diacid-based polyamide, which is derived from the following repeating units: (A) 2,5-furandicarboxylic acid, (B) 1,4-cyclohexanedicarboxylic acid, and (C) 1,5-pentanediamine, where based on the total molar percentage of the diacid units, (A) accounts for 10-45 mol% of the diacid units. On one hand, by selecting a bio-based 2,5-furandicarboxylic acid, the furan diacid-based polyamide of the present invention is more environmentally friendly, and has the advantages of a melting point of 291-335°C and lower water absorption (a water absorption rate than that of a polyamide with the same amido bond density) ; on the other hand, the rigidity of cyclohexane is higher than that of an aromatic ring, such that more hard carbon layers can be formed during combustion. In addition, the furan diacid-based polyamide has a relatively high amido bond density, and can generate a relatively excellent synergistic effect with a flame retardant, such that the flame retardant effect is excellent under the synergistic effect of the two.
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