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公开(公告)号：US20240228760A1
公开(公告)日：2024-07-11
申请号：US18561615
申请日：2022-04-27
发明人： Sumiaki FUJII , Michihiko OGUNI
IPC分类号： C08L23/12
CPC分类号： C08L23/12 , C08L2201/10
摘要： An injection molded article is made of a propylene-based polymer composition containing a propylene-based polymer (A) satisfying requirements (a-i) and (a-ii) within a range of 60 to 90 mass % and an ethylene-α-olefin copolymer (B) satisfying requirements (b-i) and (b-ii) within a range of 10 to 40 mass %, provided that the total amount of (A) and (B) is 100 mass %.
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公开(公告)号：US20230133898A1
公开(公告)日：2023-05-04
申请号：US17911942
申请日：2021-03-19
发明人： Yuya TANAKA , Yoshitaka WAGA , Nagisa ENDO
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.
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公开(公告)号：US11434356B2
公开(公告)日：2022-09-06
申请号：US17049803
申请日：2019-04-24
发明人： Shuichi Inoue , Satoru Kinouchi , Kazuaki Tokumo , Takao Jouduka
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.
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4.发明申请公开(公告)号：US20210347954A1
公开(公告)日：2021-11-11
申请号：US17289419
申请日：2019-11-01
发明人： Akiko ODAWARA , Yurie KUMEDA
IPC分类号： C08J5/04 , C08J5/24 , C08J3/12 , C08L23/12 , C08L23/14 , C08L23/16 , C08L23/06 , C08L23/26 , C08F222/06 , C08L53/00 , C08K3/04
摘要： A long fiber-reinforced propylene resin composition, including a long fiber-reinforced resin pellet; an ethylene polymer that has a density of 865 to 950 kg/m3, a melting point of 50 to 105° C., and a heat of fusion of 52 J/g or more and is optionally modified; and optionally, a propylene polymer, wherein the long fiber-reinforced resin pellet is a pellet including a propylene polymer, a reinforcing fiber, and a modified polypropylene.
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公开(公告)号：US10800909B2
公开(公告)日：2020-10-13
申请号：US15315622
申请日：2015-07-30
发明人： Katsutoshi Ohta
IPC分类号： C08L23/12 , C08J5/18 , H01G4/18 , C08F4/6592 , C08F4/654 , C08F110/06 , C08F4/659
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.
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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)
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公开(公告)号：US10053554B2
公开(公告)日：2018-08-21
申请号：US15122522
申请日：2015-03-09
发明人： Hiroyuki Uekita
IPC分类号： B29C49/04 , B29C49/06 , B29C49/12 , C08K5/098 , C08K5/523 , C08L23/14 , B29K23/00 , B29L31/00 , B29C49/00
CPC分类号： C08K5/523 , B29C49/0005 , B29C49/04 , B29C49/06 , B29C49/12 , B29K2023/12 , B29L2031/712 , C08K5/098 , C08L23/14 , C08L23/142 , C08L2201/10 , C08L2205/025
摘要： There is shown a propylene resin composition including 100 parts by weight of (A) a propylene resin and 0.05 to 0.5 part by weight of (B) a nucleating agent containing an organophosphoric ester compound represented by the formula (B1) and at least one kind selected from aliphatic carboxylic acids and derivatives thereof and containing an alkali metal element as an essential component, wherein MFR is 11 to 100 g/10 min, the crystalline melting point is 140 to 155° C., and in an elution curve determined by a temperature rising elution fractionation chromatograph (TREF), the elution quantity Wp1 (% by weight) in a temperature range higher than the main elution peak temperature Tp and the elution quantity Wp2 (% by weight) in a temperature range not higher than 10° C. are each in a specific range.
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8.发明申请公开(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
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.
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9.发明授权公开(公告)号：US08901240B2
公开(公告)日：2014-12-02
申请号：US13143336
申请日：2010-01-06
IPC分类号： H01M2/16 , C08K3/00 , C08F4/76 , C08F110/06 , B01D63/00 , H01G9/00 , C08L23/12 , H01G9/02 , C08F4/659 , C08F4/6592 , C08L23/04 , H01M10/0525
CPC分类号： H01G9/155 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F110/06 , C08L23/04 , C08L23/12 , C08L2314/06 , C08L2666/06 , H01G9/02 , H01M2/1653 , H01M10/0525 , Y02E60/13 , C08F2/14 , C08F2/001 , C08F2500/17
摘要： [Object] To provide a polypropylene resin composition for use in the formation of a microporous membrane having excellent heat resistance and low thermal shrinkage ratio.[Solution] A polypropylene resin composition for use in the formation of a microporous membrane according to the present invention comprises as an essential component a propylene homopolymer (A) that satisfies the following requirements (1) to (4) and (7): (1) the intrinsic viscosity [η] is 1 dl/g or more and less than 7 dl/g; (2) the mesopentad fraction ranges from 94.0% to 99.5%; (3) the integral elution volume during heating to 100° C. is 10% or less; (4) the melting point ranges from 153° C. to 167° C.; and (7) in an elution temperature-elution volume curve, the maximum peak has a peak top temperature in the range of 105° C. to 130° C. and a half-width of 7.0° C. or less.
摘要翻译： 本发明提供一种用于形成耐热性优异，热收缩率低的微多孔膜的聚丙烯树脂组合物。 [解决方案]根据本发明的用于形成微孔膜的聚丙烯树脂组合物包含满足以下要求（1）至（4）和（7）的丙烯均聚物（A）作为必要成分：（ 1）特性粘度[ηe]为1 dl / g以上且小于7dl / g; （2）触痛百分比范围为94.0％〜99.5％; （3）加热至100℃时的积分洗脱体积为10％以下; （4）熔点范围为153℃至167℃。 和（7）在洗脱温度洗脱体积曲线中，最大峰的顶峰温度在105℃至130℃的范围内，半宽度为7.0℃以下。
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公开(公告)号：US08680194B2
公开(公告)日：2014-03-25
申请号：US12922348
申请日：2009-03-19
申请人： Hirofumi Goda , Toru Iwashita
发明人： Hirofumi Goda , Toru Iwashita
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.
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