-
公开(公告)号：US20240271330A1
公开(公告)日：2024-08-15
申请号：US18567975
申请日：2022-02-08
发明人： Jeong Sam KIM , Ju Hyun LEE
CPC分类号： D01F1/04 , C08G69/26 , C08J3/22 , D01D5/04 , D01F6/605 , C08J2377/06 , D10B2331/021 , D10B2401/063 , D10B2401/20
摘要： The present invention relates to an aramid dope-dyed yarn and a manufacturing method therefor, the aramid dope-dyed yarn being manufactured by blend spinning a mixture dope comprising: a master batch dope comprising a pigment and a meta-aramid dope, which is obtained by polymerizing m-phenylene diamine (MPD) and isophthaloyl chloride (IPC); and the meta-aramid dope, and provided is an aramid dope-dyed yarn having less color deviation and excellent light fastness due to uniform pigment dispersion.
-
公开(公告)号：US20240141165A1
公开(公告)日：2024-05-02
申请号：US18547338
申请日：2022-03-16
发明人： Haruka DOI , Wataru MAKIGUCHI , Kohei NISHINO , Isao WASHIO
CPC分类号： C08L77/06 , B29C45/0001 , C08G69/04 , C08G69/265 , C08K3/38 , C08K5/5313 , B29K2077/00 , C08K2003/387 , C08L2201/02 , C08L2205/03
摘要： Provided is a polyamide resin composition that has a high electrical resistance in a high temperature region (around 130° C.) while having a high heat resistance. This polyamide resin composition comprises polyamide resin that contains a component unit (a) deriving from an aromatic dicarboxylic acid or alicyclic dicarboxylic acid and a component unit (b2) deriving from 1,3-bis(aminomethyl)cyclohexane. The polyamide resin composition further comprises at least one flame retardant (X) selected from the group consisting of polybrominated styrenes, brominated polystyrenes, and brominated polyphenylenes, or a flame retardant (Y) comprising a prescribed phosphinate salt compound or bisphosphinate salt compound or a polymer thereof.
-
公开(公告)号：US20240096521A1
公开(公告)日：2024-03-21
申请号：US18471687
申请日：2023-09-21
申请人： PRYSMIAN S.p.A.
发明人： Benjamin FERLAY , Andreas Neuman
CPC分类号： H01B7/423 , B60L53/16 , B60L53/18 , B60L53/302 , C08G18/82 , C08G69/26 , H02J7/0042 , H01B9/00
摘要： A power supply cable (20; 40; 50; 70) comprising a plurality of conductor assemblies (10; 30; 60), each conductor assembly comprising an electrical conductor (14; 63) and a cooling tube (11) defining a central internal passage for carrying a cooling fluid, wherein the cooling tube (11) comprises an inner polymeric layer (12) in contact with the internal passage (17) and an outer polymeric layer (13) surrounding the inner polymeric layer (12), and the inner polymeric layer (12) has a first Shore D hardness value and the outer polymeric layer has a second Shore D hardness value, the first Shore D hardness value being larger than the second Shore D hardness value. The present disclosure further relates to a power charging cable assembly and a charging system including said power supply cable.
-
公开(公告)号：US20240052101A1
公开(公告)日：2024-02-15
申请号：US18264442
申请日：2022-02-25
CPC分类号： C08G69/265 , C08K3/40 , C08L77/06 , C08G69/10 , C08K2201/002 , C08G2120/00 , C08L2205/025 , C08K7/14
摘要： Described herein is a polyamide composition comprising two polyamides and glass fiber, wherein one of the polyamides is a polyphthalamide formed by polycondensation from various monomers: dicarboxylic acid(s) with diamine(s) and/or amino acid(s), wherein at least one monomer contains a cyclohexyl group. It was surprisingly discovered that the polyamide composition has improved warpage and/or mold shrinkage properties, excellent mechanical performance and high Tg and/or Tm. Due to the excellent performance, the polyamide composition is suitable for molding and can be desirably incorporated into mobile electronic device applications.
-
公开(公告)号：US11813828B2
公开(公告)日：2023-11-14
申请号：US16316361
申请日：2017-07-10
申请人： Arkema France
CPC分类号： B32B27/34 , B32B1/08 , B32B7/12 , B32B27/08 , B32B27/18 , B32B27/20 , B32B27/306 , C08G69/265 , B32B2250/24 , B32B2262/02 , B32B2262/0261 , B32B2262/0269 , B32B2262/0276 , B32B2262/0292 , B32B2262/10 , B32B2262/101 , B32B2262/105 , B32B2262/106 , B32B2307/7242 , B32B2307/7265 , B32B2439/00 , B32B2439/40 , B32B2439/60 , B32B2597/00 , C08G2390/00
摘要： The invention relates to a structure comprising at least one layer (1) comprising a BACT/XT copolyamide in which: —BACT is a unit with an amide moiety having a molar ratio of between 20 and 70%, preferably between 25 and 60%, and more preferably between 35 and 55%, where BAC is chosen from 1,3-bis (aminomethyl) cyclohexyl (1,3 BAC), 1,4-bis (aminomethyl) cyclohexyl (1,4 BAC) and a mixture of same, and T is terephthalic acid, —XT is a unit with an amide moiety having a molar ratio of between 30 and 80%, preferably between 40 and 75%, and more preferably between 45 and 65%, where X is a C9 to C18, preferably C9, C10, C11 and C12, linear aliphatic diamine, and where T is terephthalic acid, preferably a C10, C11 and C12 terephthalic acid.
-
公开(公告)号：US20230340233A1
公开(公告)日：2023-10-26
申请号：US18168619
申请日：2023-02-14
发明人： Hung-Jen LIU , Hsin-Ching KAO , Po-Hsien HO
CPC分类号： C08K7/00 , C08G69/26 , C08G69/36 , G02B7/02 , C08K2201/016
摘要： A composite material is provided. The composite material includes (a1) first polyamide polymerized from C10-12 diamine and terephthalic acid or an ester thereof, or (a2) second polyamide polymerized from C8-12 diamine, terephthalic acid or an ester thereof, and 4-aminoalkyl benzoic acid or an ester thereof; and (b) sheet-shaped material having an aspect ratio of 40 to 80. The composite material can be used in the lens base and the barrel of a lens module.
-
公开(公告)号：US11753504B2
公开(公告)日：2023-09-12
申请号：US17061128
申请日：2020-10-01
发明人： Jacob G. Ray , Tiffany Hristopoulos , Steven C. Manning , Tariq S. Oweimreen , Scott E. Powers , Askim Senyurt
IPC分类号： C08G69/36 , B32B27/08 , C08J5/18 , C08G69/26 , B32B27/18 , B32B27/32 , B32B27/34 , C08L77/06 , B32B7/12 , C08K3/36 , C08K5/098 , C08K5/20
CPC分类号： C08G69/36 , B32B7/12 , B32B27/08 , B32B27/18 , B32B27/32 , B32B27/34 , C08G69/265 , C08J5/18 , C08K3/36 , C08K5/098 , C08K5/20 , C08L77/06 , B32B2250/24 , B32B2250/44 , B32B2307/406 , B32B2307/412 , B32B2307/518 , B32B2307/54 , B32B2307/7244 , B32B2439/70 , C08J2377/06
摘要： A copolyamide composition comprising a statistical copolyamide containing 70-99 wt % of diamine and dicarboxylic acid repeat units and 1-30 wt % of lactam or AA-BB repeat units, whereby incorporation of the comonomer lactam or AA-BB unit reduces the crystallization rate (longer crystallization times) while maintaining (1) high melting point, (2) low potential plate out, (3) low oxygen permeation, (4) high tensile strength and (5) puncture/tear resistance.
-
公开(公告)号：US11732132B2
公开(公告)日：2023-08-22
申请号：US16594357
申请日：2019-10-07
申请人： Covestro LLC
发明人： Matthew Stewart , Joseph Pierce , Wendy S. Gustavich , Michael Jeffries , Robert A. Wade , Myron W. Shaffer
CPC分类号： C08L77/06 , C08G18/603 , C08G18/73 , C08G18/753 , C08G69/26 , C08L75/02 , C09D175/02
摘要： A polyaspartate composition is provided which comprises a reaction product of a diamine and a diester reacted at a ratio of diamine equivalents to diester equivalents of from 1:0.95 to 1:0.50. The polyaspartate compositions of the invention may be combined with polyisocyanates to produce polyurea compositions, e.g., coatings, adhesives, sealants, composites, castings, and films, which exhibit a faster cure time along with faster development time for physical properties such as hardness and tensile strength.
-
公开(公告)号：US20230227607A1
公开(公告)日：2023-07-20
申请号：US18021791
申请日：2021-06-09
发明人： Kosuke OTSUKA , Yuya OKAJIMA
IPC分类号： C08G69/26
CPC分类号： C08G69/26
摘要： Provided is a polyamide resin having a high glass transition temperature and a low water absorption rate and from which a molded article that exhibits minimal deformation after water absorption is obtained. The polyamide resin includes diamine-derived structural units and dicarboxylic acid-derived structural units. More than 30 mol% of the diamine-derived structural units are derived from a diamine represented by the following formula, and more than 30 mol% of the dicarboxylic acid-derived structural units are derived from an aromatic dicarboxylic acid:
-
10.发明公开公开(公告)号：US20230174716A1
公开(公告)日：2023-06-08
申请号：US17923791
申请日：2021-05-05
CPC分类号： C08G69/265 , C08G69/28 , C08K7/06 , C08K7/14
摘要： Described herein are polymer compositions (PC) including a polyamide and carbon fiber. As explained in detail below, the polyamide (PA) is a semi-aromatic polyamide derived from the polycondensation of an aliphatic diamine, terephthalic acid, and a bis(aminoalkyl)cyclohexane or a cyclohexanedicarboxylic acid. It was surprisingly discovered that incorporation of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane or the specific combination of the cycloaliphatic diamine bis(aminoalkyl)cyclohexane and the cycloaliphatic dicarboxylic acid cyclohexanedicarboxylic acid into the polyamide provided for carbon fiber filled polymer compositions (PC) having significantly improved mechanical properties (e.g. tensile modulus and strength) at elevated temperatures, as well as significantly improved retention of mechanical properties after heat aging, relative to analogous polyamides free of the bis(aminoalkyl)cyclohexane and the cyclohexanedicarboxylic acid. Due at least in part to the improved elevated temperature mechanical properties, as well as their heat aging retention, the polyamides (PA) can be desirably incorporated into structural articles that, during use, are exposed to elevated temperatures.
-
-
-
-
-
-
-
-
-
搜索结果
2918 条记录 (耗时 0.025 秒)
