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    • 2. 发明授权
    • Polypropylene composition and uses thereof
    • 聚丙烯组合物及其用途
    • US5998039A
    • 1999-12-07
    • US890360
    • 1997-07-09
    • Tatsuya TanizakiMikio HashimotoMasahiro SugiToshiyuki TsutsuiYasuo TanakaMamoru Kagami
    • Tatsuya TanizakiMikio HashimotoMasahiro SugiToshiyuki TsutsuiYasuo TanakaMamoru Kagami
    • C08F210/06C08L23/10C08L23/12C08L23/14B32B27/32
    • C08L23/12C08L23/10C08L23/14C08L23/142C08F210/06C08L2205/02Y10S428/91Y10T428/1328Y10T428/31909Y10T428/31913
    • Disclosed is a polypropylene composition comprising (A) polypropylene and (B) a specific propylene-1-butene random copolymer in a specific amount ratio. The propylene-1-butene random copolymer (B) is characterized in that: (1) the copolymer contains 50 to 95% by mol of constituent units from propylene and 50 to 5% by mol of constituent units from 1-butene, (2) the intrinsic viscosity, as measured in decahydronaphthalene at 135.degree. C., is in the range of 0.1 to 12 dl/g, (3) the molecular weight distribution (Mw/Mn), as determined measured by GPC, is not more than 3, and (4) the parameter B value indicating randomness of the copolymerized monomer sequence distribution is in the range of 1.0 to 1.5. Also disclosed is a polypropylene composite film comprising (I) a crystalline polypropylene layer and (II) a layer formed from the polypropylene composition, which is laminated on at least one surface of the crystalline polypropylene layer (I). The polypropylene composition is excellent in heat resistance and low-temperature heat-sealing properties as well as in flexibility and impact resistance. The polypropylene composite film is excellent in not only heat-sealing properties, particularly low-temperature heat-sealing properties, but also transparency, scratch resistance and blocking resistance.
    • 公开了包含(A)聚丙烯和(B)特定量比的特定丙烯-1-丁烯无规共聚物的聚丙烯组合物。 丙烯-1-丁烯无规共聚物(B)的特征在于:(1)共聚物含有50〜95摩尔%的丙烯构成单元和50〜5摩尔%的来自1-丁烯的构成单元,(2 ),在135℃下在十氢化萘中测得的特性粘度在0.1〜12dl / g的范围内,(3)通过GPC测定的分子量分布(Mw / Mn)不大于 3,(4)表示共聚单体序列分布的随机性的参数B值在1.0〜1.5的范围内。 还公开了一种聚丙烯复合膜,其包含(I)结晶聚丙烯层和(II)由聚丙烯组合物形成的层,其层压在结晶聚丙烯层(I)的至少一个表面上。 聚丙烯组合物的耐热性和低温热封性以及柔软性和耐冲击性优异。 聚丙烯复合膜不仅具有优异的热封性,特别是低温热封性,而且透明性,耐擦伤性和耐粘连性优异。
    • 3. 发明授权
    • Ethylene-.alpha.-olefin-nonconjugated polyene random copolymer, rubber
composition, and process for preparing the random copolymer
    • 乙烯-α-烯烃 - 非共轭多烯无规共聚物,橡胶组合物和制备无规共聚物的方法
    • US5610254A
    • 1997-03-11
    • US574684
    • 1995-12-19
    • Toshihiro SaganeToshiyuki TsutsuiMasaaki KawasakiKeiji OkadaTetsuo TojoTatsuya Tanizaki
    • Toshihiro SaganeToshiyuki TsutsuiMasaaki KawasakiKeiji OkadaTetsuo TojoTatsuya Tanizaki
    • C08F4/64C08F4/642C08F4/659C08F4/6592C08F210/18C08L23/16C08F236/20C08F232/06
    • C08F210/18C08L23/16C08F4/65912C08F4/65927C08L2312/00Y10S526/943
    • Disclosed is an ethylene-.alpha.-olefin-nonconjugated polyene random copolymer which is a random copolymer of (a) ethylene, (b) an .alpha.-olefin of 3 or more carbon atoms and (c) a nonconjugated polyene, and has such properties that (i) the copolymer contains (a) units derived from ethylene and (b) units derived from the .alpha.-olefin of 3 or more carbon atoms in a molar ratio of 40/60 to 95/5 ((a)/(b)), (ii) the iodine value is in the range of 1 to 50, (iii) the intrinsic viscosity (.eta.), as measured in decahydronaphthalene at 135.degree. C., is in the range of 0.1 to 8.0 dl/g, and (iv) the ratio g.eta.* of the intrinsic viscosity (.eta.) of the copolymer defined above to the intrinsic viscosity (.eta.).sub.blank of a linear ethylene-propylene copolymer having the same weight-average molecular weight as the ethylene-.alpha.-olefin-nonconjugated polyene random copolymer and having an ethylene content of 70% by mol, (.eta.)/(.eta.).sub.blank, is in the range of 0.2 to 0.9 or the ratio g' of the intrinsic viscosity (.eta.) of said random copolymer defined above to the intrinsic viscosity (.eta.).sub.blank' of a linear ethylene-propylene copolymer having an ethylene content of 70% by mol which is determined by measurement of gel permeation chromatography (GPC) of ethylene-.alpha.-olefin-nonconjugated polyene random copolymer in orthodichlorobenzene at 140.degree. C., (.eta.)/(.eta.).sub.blank', is in the reange of 0.2 to 0.9.
    • 公开了一种乙烯-α-烯烃 - 非共轭多烯无规共聚物,它是(a)乙烯,(b)3个或更多个碳原子的α-烯烃和(c)非共轭多烯的无规共聚物, (i)共聚物包含(a)衍生自乙烯的单元和(b)衍生自摩尔比为40/60至95/5((a)/(b)的3个或更多个碳原子的α-烯烃的单元) ),(ii)碘值在1〜50的范围内,(iii)在135℃下在十氢化萘中测定的特性粘度(η)为0.1〜8.0dl / g, (iv)上述共聚物的特性粘度(eta)与具有与乙烯-α-烯烃相同的重均分子量的直链乙烯 - 丙烯共聚物的特性粘度(η)空白的比率g eta * 非共轭多烯无规共聚物的乙烯含量为70摩尔%(eta)/(η)空白,在0.2〜0.9的范围内或者int的比例g' 所述上述无规共聚物的特性粘度(η)为乙烯含量为70摩尔%的线性乙烯 - 丙烯共聚物的特性粘度(η)空白',其通过乙烯的凝胶渗透色谱(GPC) α-烯烃 - 非共轭多烯无规共聚物在140℃,(η)/(η)空白'的邻二氯苯中的摩尔比为0.2-0.9。
    • 4. 发明授权
    • Poly (4-methyl-1-pentene) resin laminates and uses thereof
    • 聚(4-甲基-1-戊烯)树脂层合物及其用途
    • US06265083B1
    • 2001-07-24
    • US09147961
    • 1999-03-24
    • Tatsuya TanizakiTakashi NakaharaMineo Kubo
    • Tatsuya TanizakiTakashi NakaharaMineo Kubo
    • B32B2732
    • B32B27/08B32B7/12B32B27/32B32B2323/04B32B2323/10B32B2439/00Y10T428/31909Y10T428/31913
    • A poly-4-methyl-1-pentene resin laminate excellent in not only heat sealing properties and oxygen gas permeability but also blocking resistance is provided. The poly-4-methyl-1-pentene resin laminate comprises a layer made of a 4-methyl-1-pentene polymer (A), an intermediate layer made of an adhesive resin composition (B) and a layer made of a propylene polymer composition (C) comprising 60 to 90 parts by weight of a propylene polymer (c-1) and 10 to 40 parts by weight of a 1-butene polymer (c-2), the total amount of said components (c-1) and (c-2) being 100 parts by weight. This poly-4-methyl-1-pentene resin laminate can be used as a material of freshness-keeping packaging media and culture containers. Also provided is a poly-4-methyl-1-pentene resin laminate having excellent peel resistance and capable of being easily controlled in the oxygen gas permeability. This poly-4-methyl-1-pentene resin laminate comprises a layer made of a 4-methyl-1-pentene polymer (A′), an intermediate layer made of an adhesive resin composition (B′) and a layer made of an olefin polymer (C′). This poly-4-methyl-1-pentene resin laminate can be used as a material of containers for keeping freshness of vegetables and fruits.
    • 提供了不仅热封性和氧气渗透性也耐粘连性优异的聚-4-甲基-1-戊烯树脂层压体。 聚-4-甲基-1-戊烯树脂层压体包括由4-甲基-1-戊烯聚合物(A)制成的层,由粘合树脂组合物(B)制成的中间层和由丙烯聚合物 组合物(C)包含60至90重量份的丙烯聚合物(c-1)和10至40重量份的1-丁烯聚合物(c-2),所述组分(c-1)的总量 和(c-2)为100重量份。 该聚-4-甲基-1-戊烯树脂层压体可以用作保鲜包装介质和培养容器的材料。 还提供了具有优异的耐剥离性并且能够容易地控制氧气渗透性的聚-4-甲基-1-戊烯树脂层压体。 该聚-4-甲基-1-戊烯树脂层压体包括由4-甲基-1-戊烯聚合物(A')制成的层,由粘合树脂组合物(B')制成的中间层和由 烯烃聚合物(C')。 该聚-4-甲基-1-戊烯树脂层压体可以用作保持蔬菜和水果新鲜度的容器的材料。