INJECTION-MOLDED ARTICLE FOR MEDICAL USE

    公开(公告)号:US20230133898A1

    公开(公告)日:2023-05-04

    申请号:US17911942

    申请日:2021-03-19

    IPC分类号: C08L23/16

    摘要: An injection-molded article for medical use obtained by using a medical propylene-ethylene-based resin composition including 88 to 95 parts by mass of a propylene-ethylene resin composition (A) that contains more than 90% and equal to less than 97% by mass of a propylene-ethylene copolymer (a) having an ethylene content of 1 to 5% by mass, and a melt flow rate conforming to JIS K7210 (230° C., 2.16 kg load) being 10 to 100 g/10-min, and equal to more than 3% and less than 10% by mass of a propylene-ethylene copolymer (b) having an ethylene content of 15 to 22% by mass and an MFR of 1 to 50 g/10-min, 5 to 12 parts by mass of an elastomer (B) that is an ethylene-α-olefin random copolymer which is an ethylene-α-olefin random copolymer having a density of 0.880 to 0.920 g/cm3; and 0.01 to 0.20 parts by mass of a weather-resistant stabilizer.

    Propylene-based resin composition

    公开(公告)号:US11434356B2

    公开(公告)日:2022-09-06

    申请号:US17049803

    申请日:2019-04-24

    摘要: Disclosed is a propylene-based resin composition comprising more than 15 parts by mass and 40 parts by mass or less of an ethylene/α-olefin copolymer (E1) and 4 to 20 parts by mass of an ethylene/α-olefin/diene copolymer (E2), and comprising also a propylene-based polymer (P1) having an amount of a n-decane-soluble part at 23° C. of 5 to 25% by mass, wherein the ethylene content of the n-decane-soluble part is more than 40% by mass and 60% by mass or less, a propylene homopolymer (P2) and an inorganic filler (F) [providing that the total amount of the components (P1), (P2), (E1), (E2) and (F) is taken as 100 parts by weight]. The propylene-based resin composition is capable of producing a molded article which is excellent in mechanical properties, unnoticeable flow marks, low gloss.

    FIBER-REINFORCED POLYPROPYLENE-BASED RESIN COMPOSITION AND MOLDED PRODUCT THEREOF

    公开(公告)号:US20190144651A1

    公开(公告)日:2019-05-16

    申请号:US16300026

    申请日:2017-05-09

    发明人: Yuichi MATSUDA

    摘要: Disclosed is a fiber-reinforced polypropylene-based resin composition including a propylene-based polymer (A) and reinforcing fibers (B), in which when a content of at least one olefin-derived structural unit selected from ethylene and an α-olefin having 4 to 8 carbon atoms in the propylene-based polymer (A) is designated as E (% by mass) (the sum of the propylene-based polymer (A) and the reinforcing fibers (B) is designated as 100% by mass), and a mesopentad fraction of the propylene-based polymer (A) as measured by 13C-NMR is designated as M (%), the following Expression (1) and Expression (2) are satisfied, the fiber-reinforced polypropylene-based resin composition being a resin composition with which a molded product having excellent thermal and mechanical characteristics and having an excellent external appearance of the molded product surface (particularly, external appearance of a grained surface) can be produced. 85≤M≤99  (1) 74≤M−12E≤90  (2)

    PROPYLENE HOMOPOLYMER COMPOSITION FOR CAPACITOR FILM, METHOD FOR PRODUCING THE SAME, AND CAPACITOR FILM

    公开(公告)号:US20170190891A1

    公开(公告)日:2017-07-06

    申请号:US15315622

    申请日:2015-07-30

    发明人: Katsutoshi OHTA

    IPC分类号: C08L23/12 H01G4/18 C08J5/18

    摘要: Provided are a propylene homopolymer composition for a capacitor film, from which a thin film can be easily produced and which can provide a film with excellent high-temperature voltage resistance, a method for producing the same, and a capacitor film. The propylene homopolymer composition for a capacitor film contains 1% by mass or more and less than 50% by mass of a propylene homopolymer (A1) having predetermined characteristics and more than 50% by mass and 99% by mass or less of a propylene homopolymer (B1) having predetermined characteristics, and has (i) a melt flow rate (MFR) of 1.0 to 10.0 g/10 min and (ii) a chlorine content of 2 ppm by mass or less.

    Long-fiber-reinforced resin composition and molded article thereof

    公开(公告)号:US08680194B2

    公开(公告)日:2014-03-25

    申请号:US12922348

    申请日:2009-03-19

    IPC分类号: C08K3/40 C08L33/00

    摘要: A long-fiber-reinforced resin composition including (A) a long-fiber-reinforced thermoplastic resin pellet including a thermoplastic resin, a modified polyolefin-based resin modified with an unsaturated carboxylic acid or its derivative and reinforcing fiber and satisfying (A-1) the melt index of the thermoplastic resin is 100-250 g/10 min, (A-2) the relaxation time λ of the thermoplastic resin is 0.1 (sec) or less, (A-3) the content of the reinforcing fiber is 40-70 wt %, and (A-4) the content of the modified polyolefin-based resin is 1-5 wt %; and (B) a polyolefin-based resin satisfying (B-1) the melt index of the polyolefin-based resin is 20-70 g/10 min, and (B-2) the relaxation time λ of the polyolefin-based resin is 0.23 (sec) or less; wherein the content of reinforcing fiber contained in (A) is 20-60 wt % relative to the total amount of the fiber-reinforced resin composition.

    POLYPROPYLENE RESIN COMPOSITION
    10.
    发明申请
    POLYPROPYLENE RESIN COMPOSITION 有权
    聚丙烯树脂组合物

    公开(公告)号:US20140018478A1

    公开(公告)日:2014-01-16

    申请号:US13978844

    申请日:2012-01-27

    IPC分类号: C08L53/00

    摘要: A polypropylene-based resin composition including 100 parts by weight of the following component (A), 18 parts by weight or more and 65 parts by weight or less of the following component (B), 6 parts by weight or more and 45 parts by weight or less of the following component (C), 25 parts by weight or more and 60 parts by weight or less of the following component (D), 0.1 part by weight or more and 6.5 parts by weight or less of the following component (E) and 0.15 part by weight or more and 5.0 parts or less by weight of the following component (F):(A) a specific propylene-ethylene block copolymer A: (B) a specific propylene-ethylene block copolymer B: (C) an ethylene-α-olefin copolymer having a melt flow rate (230° C., under the load of 2.16 kg) of 0.5 g/10 min or more and 20 g/10 min or less; (D) an inorganic filler having an average particle diameter of 1 μm or more and 14 μm or less; (E) an acid-modified polypropylene; and (F) a lubricant

    摘要翻译: 包含100重量份以下组分(A),18重量份以上65重量份以下65重量份以下的(B)成分的聚丙烯系树脂组合物,6重量份以上45份以上 以下组分(C)的重量或更少,以下组分(D)为25重量份以上且60重量份以下,以下成分为0.1重量份以上6.5重量份以下 (A)特定的丙烯 - 乙烯嵌段共聚物A:(B)特定的丙烯 - 乙烯嵌段共聚物B:(C(E))和0.15重量份以上5.0重量%以下 )熔体流动速率(230℃,负荷2.16kg)的乙烯-α-烯烃共聚物为0.5g / 10分钟以上且20g / 10分钟以下; (D)平均粒径为1μm以上且14μm以下的无机填料; (E)酸改性聚丙烯; 和(F)润滑剂