Ethylene copolymer composition
    1.
    发明授权
    Ethylene copolymer composition 失效
    乙烯共聚物组成

    公开(公告)号:US06894120B2

    公开(公告)日:2005-05-17

    申请号:US10819284

    申请日:2004-04-07

    IPC分类号: C08L23/06 C08L23/08 C08L23/00

    摘要: An ethylene copolymer composition comprising an ethylene/α-olefin copolymer, A-4, of ethylene with an α-olefin of 3 to 20 carbon atoms in an amount of 65-98% by weight, whose melt tension, MT, at 190° C. and MFR satisfy the relation MT>2.2×MFR−0.84, and at least one crystalline polyolefin, B-2, in an amount of 1-40% by weight selected from the group consisting of, B-I, an ethylene homopolymer or a copolymer of ethylene with an α-olefin of 3 to 20 carbon atoms, prepared using a non-metallocene type catalyst, B-II, a propylene hompolymer or a copolymer of propylene with at least one olefin selected from ethylene and an α-olefin of 4 to 20 carbon atoms, and, B-III, a homopolymer of an α-olefin of 4 to 20 carbon atoms or a copolymer of α-olefins of 4 to 20 carbon atoms, and articles made from the composition.

    摘要翻译: 一种乙烯共聚物组合物,其包含乙烯/α-烯烃共聚物A-4,其乙烯与3-20个碳原子的α-烯烃的重量百分比为65-98%,其熔体张力MT在190℃ C.和MFR满足MT> 2.2×MFR -0.84的关系,和至少一种结晶聚烯烃B-2,其量为1-40%(重量),选自BI 乙烯均聚物或乙烯与3-20个碳原子的α-烯烃的共聚物,其使用非茂金属型催化剂,B-II,丙烯均聚物或丙烯与至少一种选自乙烯的烯烃的共聚物制备 和4至20个碳原子的α-烯烃,和B-III,4-20个碳原子的α-烯烃的均聚物或4-20个碳原子的α-烯烃的共聚物,以及由 组成。

    Ethylene copolymer composition
    2.
    发明授权
    Ethylene copolymer composition 失效
    乙烯共聚物组成

    公开(公告)号:US5674945A

    公开(公告)日:1997-10-07

    申请号:US429010

    申请日:1995-04-26

    IPC分类号: C08L23/06 C08L23/08

    摘要: Ethylene copolymer compositions comprise: an ethylene/.alpha.-olefin copolymer component comprising at least one ethylene/.alpha.-olefin copolymer having a density within a specific range, a melt flow rate (MFR) within a specific range, an amount of an n-decane-soluble portion within a specific range and a melt tension (MT) that satisfies a specific relation with the MFR; and a (co)polymer component comprising one (co)polymer selected from the group consisting of a low-density polyethylene obtained by high-pressure radical polymerization, a crystalline polyolefin and an olefin elastomer. The ethylene copolymer compositions are excellent in heat stability and moldability, and able to form films of high transparency, high mechanical strength and anti-blocking resistance.

    摘要翻译: 乙烯共聚物组合物包括:乙烯/α-烯烃共聚物组分,其包含至少一种密度在特定范围内的乙烯/α-烯烃共聚物,特定范围内的熔体流动速率(MFR),正癸烷的量 - 特定范围内的熔融张力(MT),和MFR的特定关系; 和(共)聚合物组分,其包含选自由高压自由基聚合获得的低密度聚乙烯,结晶聚烯烃和烯烃弹性体的一种(共)聚合物。 乙烯共聚物组合物的热稳定性和成型性优异,能够形成高透明性,高机械强度和抗粘连性的膜。

    Ethylene copolymer composition
    3.
    发明授权
    Ethylene copolymer composition 失效
    乙烯共聚物组成

    公开(公告)号:US06774190B1

    公开(公告)日:2004-08-10

    申请号:US09949675

    申请日:2001-09-12

    IPC分类号: C08L2304

    摘要: An ethylene copolymer composition comprising an ethylene/&agr;-olefin copolymer (A-1), which has a density, a melt flow rate (MFR), an amount of a n-decane-soluble portion in the specific ranges and whose melt tension (MT) at 190° C. and MFR satisfy the relation MT>2.2×MFR−0.84, and one (co)polymer selected from the group consisting of (B-1) a low-density polyethylene obtained by high-pressure radical polymerization, (B-2) a crystalline polyolefin and (B-3) an olefin type elastomer. Also disclosed is an ethylene copolymer composition comprising an ethylene/&agr;-olefin copolymer composition and the low-density polyethylene (B-1) obtained by high-pressure radical polymerization, said ethylene/&agr;-olefin copolymer (A-2) and (A-3) both having physical properties similar to those of the above ethylene/&agr;-olefin copolymer (A-1) and having intrinsic viscosities different from each other. The ethylene copolymer compositions of the invention are excellent in heat stability and moldability, and able to form films of high transparency, high mechanical strength and anti-blocking resistance.

    摘要翻译: 一种包含乙烯/α-烯烃共聚物(A-1)的乙烯共聚物组合物,其具有密度,熔体流动速率(MFR),特定范围内的正癸烷可溶部分的量及其熔体张力( MT)和MFR满足MT> 2.2×MFR <-0.84>的关系,以及选自(B-1)由(B-1)组成的组中的一种(共)聚合物,通过高压自由基聚合获得的低密度聚乙烯 ,(B-2)结晶聚烯烃和(B-3)烯烃类弹性体。 还公开了包含乙烯/α-烯烃共聚物组合物和通过高压自由基聚合获得的低密度聚乙烯(B-1)的乙烯共聚物组合物,所述乙烯/α-烯烃共聚物(A-2)和(A -3),其物理性质与上述乙烯/α-烯烃共聚物(A-1)的物理性质相似,并且具有彼此不同的特性粘度。 本发明的乙烯共聚物组合物的热稳定性和成型性优异,能够形成高透明度,高机械强度和抗粘连性的薄膜。

    Ethylene copolymer composition
    4.
    发明授权

    公开(公告)号:US5594071A

    公开(公告)日:1997-01-14

    申请号:US429572

    申请日:1995-04-27

    摘要: An ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer [A-I] which has a density, a melt flow rate (MFR), an amount of a n-decane-soluble portion in the specific ranges and whose melt tension (MT) at 190.degree. C. and MFR satisfy the relation MT>2.2.times.MFR.sup.-0.84 and one (co)polymer selected from the group consisting of [B-1] a low-density polyethylene obtained by high-pressure radical polymerization, [B-2] a crystalline polyolefin and [B-3] an olefin type elastomer. Also disclosed is an ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer composition and the low-density polyethylene [B-1] obtained by high-pressure radical polymerization, said ethylene/.alpha.-olefin copolymer composition comprising ethylene/.alpha.-olefin copolymers [A-2] and [A-3] both having physical properties similar to those of the above ethylene/.alpha.-olefin copolymer [A-1] and having intrinsic viscosities different from each other. Further disclosed is an ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer [A-4] which has a density, a melt flow rate (MFR), a weight of a n-decane-soluble portion in the specific ranges and whose melt tension (MT) at 190.degree. C. and MFR satisfy the relation MT

    Ethylene/alpha-olefin copolymer
    7.
    发明授权
    Ethylene/alpha-olefin copolymer 失效
    乙烯/α-烯烃共聚物

    公开(公告)号:US5459217A

    公开(公告)日:1995-10-17

    申请号:US345793

    申请日:1994-11-22

    摘要: The present invention provides an ethylene/.alpha.-olefin copolymer comprising constituent units (a) derived from ethylene and constituent units (b) derived from an .alpha.-olefin having 3 to 20 carbon atoms, the ethylene copolymer being characterized in that(A) the ethylene/.alpha.-olefin copolymer has a density (d) of 0.88 to 0.95 g/cm.sup.3 ;(B) the ethylene/.alpha.-olefin copolymer has a MFR of 0.01 to 200 g/10 min as measured at a temperature of 190.degree. C. and a load of 2.16 kg;(C) the temperature (Tm) at which the exothermic curve of the ethylene/.alpha.-olefin copolymer measured by a differential scanning calorimeter (DSC) shows the highest peak and the density (d) satisfy the relationTm 75.times.MFR; and(F) the melt tension (MT) at 190.degree. C. and MFR of the copolymer satisfy the relation,3.98.times.MFR.sup.-0.66 >MT>2.times.MFR.sup.-0.65.

    摘要翻译: 本发明提供一种乙烯/α-烯烃共聚物,其包含衍生自乙烯的构成单元(a)和衍生自具有3-20个碳原子的α-烯烃的构成单元(b),所述乙烯共聚物的特征在于(A) 乙烯/α-烯烃共聚物的密度(d)为0.88〜0.95g / cm3; (B)乙烯/α-烯烃共聚物在190℃的温度和2.16kg的负荷下测得的MFR为0.01至200g / 10min; (C)通过差示扫描量热计(DSC)测定的乙烯/α-烯烃共聚物的放热曲线的温度(Tm)显示最高峰,密度(d)满足Tm <400d-250的关系; (D)在室温下正癸烷可溶成分的量分数(W)满足关系式,在MFR≤10g/ 10分钟的情况下,W <80×exp(-100(d-0.88) )+0.1,在MFR≥10g/ 10min的情况下,W <80x(MFR-9)0.35×exp(-100(d-0.88))+ 0.1; (E)当熔融共聚物在190℃的剪切应力达到2.4×10 6达因/ cm 2时给出的剪切速率所限定的流动指数(FI)满足关系式,FI> 75xMFR; 和(F)190℃下的熔体张力(MT),共聚物的MFR满足关系式3.98xMFR-0.66> MT> 2xMFR-0.65。

    Ethylene .alpha.-olefin copolymer obtained by copolymerizing ethylene
with an .alpha.-olefin
    9.
    发明授权
    Ethylene .alpha.-olefin copolymer obtained by copolymerizing ethylene with an .alpha.-olefin 失效
    通过使乙烯与α-烯烃共聚获得的乙烯-α-烯烃共聚物

    公开(公告)号:US6001941A

    公开(公告)日:1999-12-14

    申请号:US461948

    申请日:1995-06-05

    摘要: An ethylene/.alpha.-olefin copolymer obtained by copolymerizing ethylene with an .alpha.-olefin of 3 to 20 carbon atoms in the presence of a catalyst for olefin polymerization comprising an organoaluminum oxy-compound (a) and at least two kinds of transition metal compounds (b). This ethylene/.alpha.-olefin copolymer has high melt tension and high flowability. A graft modified ethylene/.alpha.-olefin copolymer obtained by graft polymerizing the above-mentioned ethylene/.alpha.-olefin copolymer with a polar monomer. An ethylene copolymer composition comprising the above-mentioned graft modified ethylene/.alpha.-olefin copolymer and polyolefin. The ethylene/.alpha.-olefin copolymer of the invention is excellent in moldability. From this copolymer, a film having high transparency and high mechanical strength can be produced. The graft modified ethylene/.alpha.-olefin copolymer of the invention is excellent in heat stability and moldability. From this copolymer, a film having high transparency and good adhesion to highly polar materials can be produced. The ethylene copolymer composition of the invention is excellent in heat stability and moldability. From this composition, a film having high transparency and good adhesion to highly polar materials can be produced.

    摘要翻译: 在烯烃聚合催化剂存在下,使乙烯与3-20个碳原子的α-烯烃共聚得到的乙烯/α-烯烃共聚物,包括有机铝氧化合物(a)和至少两种过渡金属化合物( b)。 该乙烯/α-烯烃共聚物具有高熔体张力和高流动性。 通过将极性单体接枝聚合上述乙烯/α-烯烃共聚物得到的接枝改性乙烯/α-烯烃共聚物。 包含上述接枝改性的乙烯/α-烯烃共聚物和聚烯烃的乙烯共聚物组合物。 本发明的乙烯/α-烯烃共聚物的成型性优异。 由该共聚物可以制造出透明性高,机械强度高的膜。 本发明的接枝改性乙烯/α-烯烃共聚物的热稳定性和成型性优异。 从该共聚物可以制造具有高透明性和对高极性材料的良好粘附性的膜。 本发明的乙烯共聚物组合物的热稳定性和成型性优异。 通过该组合物,可以制造具有高透明性和对高极性材料的良好粘附性的膜。