Resin compositions and use of the same
    2.
    发明授权
    Resin compositions and use of the same 失效
    树脂组合物及其用途

    公开(公告)号:US06936660B2

    公开(公告)日:2005-08-30

    申请号:US10765903

    申请日:2004-01-29

    摘要: Soft resin compositions comprising a polyethylene resin (A) and an ethylene/α-olefin random copolymer (B) comprising ethylene and an α-olefin having 3 to 20 carbon atoms at a specific proportion, or an ethylene/α-olefin copolymer resin composition comprising a linear ethylene/α-olefin copolymer (A-α) comprising ethylene and an α-olefin having 4 to 20 carbon atoms and a long-chain branched ethylene/α-olefin random copolymer (B-α) comprising ethylene and an α-olefin having 3 to 20 carbon atoms in a specific proportion, wherein a density and MFR of the polyethylene resin (A) and the copolymer (A-α), and a density, MFR, intrinsic viscosity, glass transition temperature crystallinity, molecular weight distribution, B value and gη* values of the copolymers (B) and (B-α) are each in a specific range.

    摘要翻译: 包含聚乙烯树脂(A)和包含乙烯和碳原子数为特定比例的碳原子数为3-20的α-烯烃的乙烯/α-烯烃无规共聚物(B)的软树脂组合物或乙烯/α-烯烃共聚物树脂组合物 包括包含乙烯和具有4至20个碳原子的α-烯烃的线型乙烯/α-烯烃共聚物(A-α)和包含乙烯和α-烯烃的长支链乙烯/α-烯烃无规共聚物(B-α) 具有特定比例的碳原子数为3〜20的α-烯烃,其中聚乙烯树脂(A)和共聚物(A-α)的密度和MFR,以及密度,MFR,特性粘度,玻璃化转变温度结晶度,分子量 共聚物(B)和(B-α)的分布,B值和geta *值各自在特定范围内。

    Resin compositions and use of the same
    3.
    发明授权
    Resin compositions and use of the same 有权
    树脂组合物及其用途

    公开(公告)号:US06414088B1

    公开(公告)日:2002-07-02

    申请号:US09609328

    申请日:2000-06-30

    IPC分类号: C08L2300

    摘要: The resin composition of the invention is a composition which includes 100 parts by weight of a polyethylene resin (A) and 2 to 5,000 parts by weight of a linear ethylene/a-olefin random copolymer (B) which includes ethylene and an a-olefin of 6 to 20 carbon atoms, wherein the polyethylene resin (A) has (a) MFR (ASTM D 1238, 190° C., load of 2.16 kg) of 0.1 to 200 g/10 min and (b) a density of 0.901 to 0.970 g/cm3; and the copolymer (B) has (a) a density of 0.870 to 0.900 g/cm3, (b) an intrinsic viscosity (&eegr;), as measured in decalin at 135° C., of 0.3 to 3.0 dl/g, (c) a glass transition temperature (Tg) of not higher than −50° C., (d) a crystallinity, as measured by X-ray diffractometry, of less than 40%, (e) a molecular weight distribution (Mw/Mn), as measured by GPC, of not more than 3.0, (f) a B value, as determined by the 13C-NMR spectrum and a specific equation, of 1.0 to 1.4, and (g) a ratio g&eegr;* of more than 0.95 (g&eegr;*=(&eegr;)/(&eegr;)blank/ (&eegr;): intrinsic viscosity of this copolymer determined in the property (b), (&eegr;)blank: intrinsic viscosity of a linear ethylene/propylene copolymer having the same weight-average molecular weight (measured by a light scattering method) as this copolymer and having an ethylene content of 70% by mol). This resin composition can provide molded products of excellent pliability and tensile properties.

    摘要翻译: 本发明的树脂组合物是包含100重量份的聚乙烯树脂(A)和2至5,000重量份的线性乙烯/α-烯烃无规共聚物(B)的组合物,其包括乙烯和α-烯烃 其中聚乙烯树脂(A)具有(a)MFR(ASTM D 1238,190℃,2.16kg载荷)为0.1-200g / 10min,(b)密度为0.901 至0.970g / cm 3; 共聚物(B)的密度为(a)0.870〜0.900g / cm 3,(b)在135℃萘烷中测定的特性粘度(η)为0.3〜3.0dl / g,(c )玻璃化转变温度(Tg)不高于-50℃,(d)通过X射线衍射测定的结晶度小于40%,(e)分子量分布(Mw / Mn) (f)由13 C-NMR光谱和具体方程式确定的B值为1.0〜1.4,(g)比值geta *大于0.95( geta * =(eta)/(eta)空白/(eta):在(b),(eta)特性中测定的该共聚物的特性粘度:具有相同重均分子量的线性乙烯/丙烯共聚物的特性粘度 重量(通过光散射法测定)作为该共聚物,乙烯含量为70摩尔%)。 该树脂组合物可以提供优异的柔韧性和拉伸性能的成型产品。

    Polypropylene composition and uses thereof
    4.
    发明授权
    Polypropylene composition and uses thereof 失效
    聚丙烯组合物及其用途

    公开(公告)号:US5998039A

    公开(公告)日:1999-12-07

    申请号:US890360

    申请日:1997-07-09

    摘要: 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.

    摘要翻译: 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。

    Resin compositions and use of the same
    5.
    发明授权
    Resin compositions and use of the same 有权
    树脂组合物及其用途

    公开(公告)号:US06713562B2

    公开(公告)日:2004-03-30

    申请号:US10133445

    申请日:2002-04-29

    IPC分类号: C08L2300

    摘要: Soft resin compositions comprising a polyethylene resin (A) and an ethylene/&agr;-olefin random copolymer (B) comprising ethylene and an &agr;-olefin having 3 to 20 carbon atoms at a specific proportion, or an ethylene/&agr;-olefin copolymer resin composition comprising a linear ethylene/&agr;-olefin copolymer (A-&agr;) comprising ethylene and an &agr;-olefin having 4 to 20 carbon atoms and a long-chain branched ethylene/&agr;-olefin random copolymer (B-&agr;) comprising ethylene and an &agr;-olefin having 3 to 20 carbon atoms in a specific proportion, wherein a density and MFR of the polyethylene resin (A) and the copolymer (A-&agr;), and a density, MFR, intrinsic viscosity, glass transition temperature, crystallinity, molecular weight distribution, B value and g&eegr;* values of the copolymers (B) and (B-&agr;) are each in a specific range.

    摘要翻译: 包含聚乙烯树脂(A)和包含乙烯和碳原子数为特定比例的碳原子数为3-20的α-烯烃的乙烯/α-烯烃无规共聚物(B)的软树脂组合物或乙烯/α-烯烃共聚物树脂组合物 包括包含乙烯和具有4至20个碳原子的α-烯烃的线型乙烯/α-烯烃共聚物(A-α)和包含乙烯和α-烯烃的长支链乙烯/α-烯烃无规共聚物(B-α) 具有特定比例的碳原子数为3〜20的α-烯烃,其中聚乙烯树脂(A)和共聚物(A-α)的密度和MFR,以及密度,MFR,特性粘度,玻璃化转变温度,结晶度,分子量 共聚物(B)和(B-α)的重量分布,B值和geta *值各自在特定范围内。

    Polypropylene composite film
    6.
    发明授权
    Polypropylene composite film 有权
    聚丙烯复合膜

    公开(公告)号:US06686055B2

    公开(公告)日:2004-02-03

    申请号:US10147088

    申请日:2002-05-17

    IPC分类号: B32B2732

    摘要: The polypropylene composite film of the present invention comprises (A) a crystalline polypropylene layer and (B) a propylene-1-butene random copolymer layer which is laminated on at least one surface of the crystalline polypropylene layer (A). The propylene/1-butene random copolymer (B) has the following properties: (1) the copolymer comprises 50 to 95% by mol of constituent units derived from propylene and 50 to 5% by mol of constituent units derived from 1-butene, (2) the intrinsic viscosity is 0.1 to 5 dl/g, (3) the molecular weight distribution (Mw/Mn) is not less than 3, and (4) the parameter B value is 1.0 to 1.5. The crystalline polypropylene layer (A) of this composite film may be unstretched, monoaxially stretched or biaxially oriented. The polypropylene composite film has excellent heat-sealing properties, such as low-temperature heat-sealing properties and heat-sealing strength, and hot tack properties. The polypropylene composite film is almost free from surface tackiness and shows good slip properties and high blocking resistance at high temperatures, so that it is suitable for high-speed packaging. In addition, this composite film also has good transparency and scratch resistance. The polypropylene composite film of the invention having the above-mentioned excellent properties can be favorably used for packaging of foods, fill packaging and fiber packaging.

    摘要翻译: 本发明的聚丙烯复合膜包含(A)结晶聚丙烯层和(B)层压在结晶聚丙烯层(A)的至少一个表面上的丙烯-1-丁烯无规共聚物层。 丙烯/ 1-丁烯无规共聚物(B)具有以下性质:(1)共聚物包含50〜95摩尔%的来自丙烯的构成单元和50〜5摩尔%的来自1-丁烯的结构单元, (2)特性粘度为0.1〜5dl / g,(3)分子量分布(Mw / Mn)为3以上,(4)参数B为1.0〜1.5。 该复合膜的结晶聚丙烯层(A)可以是未拉伸的,单轴拉伸的或双轴取向的。 聚丙烯复合膜具有优异的热封性能,如低温热封性和热封强度,以及热粘性。 聚丙烯复合膜几乎没有表面粘性,在高温下表现出良好的滑动性和高抗粘连性,因此适用于高速包装。 此外,该复合膜也具有良好的透明性和耐擦伤性。 具有上述优异性质的本发明的聚丙烯复合膜可以有利地用于包装食品,填充包装和纤维包装。