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    Polystyrene resin composition
    1.
    发明授权
    Polystyrene resin composition 有权

    公开(公告)号：US12122913B2

    公开(公告)日：2024-10-22

    申请号：US17418433

    申请日：2019-12-25

    申请人： IDEMITSU KOSAN CO., LTD.

    发明人： Ryosuke Kondo ,  Takaaki Uchida

    IPC分类号： C08L77/06

    CPC分类号： C08L77/06 ,  C08L2205/03 ,  C08L2205/08

    摘要： There is provided a polystyrene resin composition including: (A) a polyamide; (B) a polystyrene resin having a syndiotactic structure; (C) a compatibilizer which has a polar group reactive with the polyamide (A), and which is compatible with the polystyrene resin (B); (D) a particular hindered phenol compound; and (E) an inorganic filler, wherein the amount of the polystyrene resin (B) is 10.0 to 30.0% by weight, and the amount of the hindered phenol compound (D) is 0.3 to 1.0% by weight per 100% by weight of the total amount of the components (A) to (E).

    Durable, broadband-transparent polyoxalamide polymers and methods of making and using the same
    2.
    发明授权
    Durable, broadband-transparent polyoxalamide polymers and methods of making and using the same 有权

    公开(公告)号：US12091544B1

    公开(公告)日：2024-09-17

    申请号：US17187826

    申请日：2021-02-28

    申请人： HRL Laboratories, LLC

    发明人： Kevin Drummey ,  Ashley Dustin ,  Andrew Nowak ,  Adam Gross ,  Shanying Cui

    IPC分类号： C08L77/06 ,  C08G69/28

    CPC分类号： C08L77/06 ,  C08G69/28 ,  C08L2201/10

    摘要： Some variations provide a polyoxalamide polymer comprising: one or more first segments containing at least one repeat unit that includes (i) a branched, aliphatic hydrocarbon species and (ii) first amide groups at internal ends of the repeat unit, wherein the first amide groups are part of oxalamide groups; one or more polymer end groups containing second amide groups that are each covalently bonded directly to one of the first amide groups, wherein the second amide groups are also part of the oxalamide groups, and wherein the oxalamide groups contain —N—C(═O)—C(—O)—N-sequences; and a reacted form of one or more multifunctional amine chain extenders or crosslinkers with an amine functionality of 3 or greater. The polyoxalamide polymer may be present in a lens, a window, a coating, or a film, for example. The polyoxalamide polymer may have UV transparency, visual transparency, NIR transparency, MWIR transparency, and/or LWIR transparency.

    POLYAMIDES AND CORRESPONDING POLYMER COMPOSITIONS AND ARTICLES
    6.
    发明公开
    POLYAMIDES AND CORRESPONDING POLYMER COMPOSITIONS AND ARTICLES 审中-公开

    公开(公告)号：US20240262962A1

    公开(公告)日：2024-08-08

    申请号：US18560658

    申请日：2022-05-11

    申请人： SOLVAY SPECIALTY POLYMERS USA, LLC

    发明人： Arthur Bertrand ,  Stéphane Jeol ,  Joel Flores

    IPC分类号： C08G69/26 ,  C08L77/06

    CPC分类号： C08G69/265 ,  C08L77/06

    摘要： Described herein are amorphous and transparent aliphatic polyamides (PA) formed from the polycondensation of monomers in a reaction mixture (RM) including a dicarboxylic acid component (DC) and a diamine component (DA). The dicarboxylic acid component (DC) includes 25 mol % to 80 mol % of 1,4-cyclohexane dicarboxylic acid (“1,4-CHDA”) and 20 mol % to 75 mol % of a linear, aliphatic dicarboxylic acid selected from azelaic acid, sebacic acid or a combination thereof. The diamine component (DA) includes a cycloaliphatic diamine selected from the group consisting of isophoronediamine (“IPDA”); 4,4′-methyl-enebis(2-methylcyclohexylamine) (“MACM”); 4,4′-methylene-bis-cyclohexane (“PACM”); 1,3-bis(aminomethyl)cyclohexane (“1,3-BAC”), bis(aminomethyl)norborane (“BAMN”) and any combination of two or more thereof. It was surprisingly found that the polyamides (PA), while being bio-based (at least in part due to the linear aliphatic dicarboxylic acid), had excellent optical clarity, improved UV stability and desirably high Tg.

    Glass-fiber-reinforced polyamide resin composition and molded product for vehicle interior or vehicle exterior made therefrom
    9.
    发明授权
    Glass-fiber-reinforced polyamide resin composition and molded product for vehicle interior or vehicle exterior made therefrom 有权

    公开(公告)号：US11999850B2

    公开(公告)日：2024-06-04

    申请号：US17421847

    申请日：2020-02-12

    申请人： TOYOBO MC Corporation

    发明人： Nobuhiro Yoshimura ,  Ryo Umeki

    IPC分类号： C08L77/06

    CPC分类号： C08L77/06 ,  C08L2205/02 ,  C08L2205/03

    摘要： The present invention aims to provide a glass-fiber-reinforced polyamide resin composition, characterized in that, the composition contains a crystalline aliphatic polyamide resin (A), an amorphous polyamide resin (B), an acrylic resin (C), mica (D), glass fiber (E) and a master batch of carbon black (F) in a ratio by mass of (17 to 30):(10 to 16):(3 to 8):(10 to 25):(20 to 50):(1 to 8), respectively, in that, a mass ratio of (A) and (B) ((B)/(A)) satisfies 0.50 to 0.61, and in that, the composition further contains a copper compound (G) in a rate of 0.005 to 1.0 part by mass when a total amount of the ingredients (A) to (F) is taken as 100 parts by mass. From the glass-fiber-reinforced polyamide resin composition, it is possible to obtain a molded product that is highly excellent in a surface appearance (textured surface uniformity) and has a weather resistance in a level being enough for maintaining an excellent surface appearance even after the weathering test.