摘要:
A polyolefin resin composition containing an ethylene-.alpha.-olefin copolymer having: (A) a density d of 0.86 to 0.96 g/cm.sup.3 ; (B) a melt flow rate MFR of 0.01 to 200 g/10 min; (C) a molecular weight distribution Mw/Mn of 1.5 to 4.5; (D) a composition distribution parameter Cb of 1.08 to 2.00; and (E) an orthodichlorobenzene-soluble content X (wt %), at 25.degree. C. a density of d (g/cm.sup.3) and a melt flow rate MFR (wt %) satisfying that: (i) when the density (d) and the melt flow rate MFR satisfy relationship (I):d-0.008.times.logMFR.gtoreq.0.93 (I)the orthodichlorobenzene-soluble content X satisfies relationship (II):X
摘要:
A laminate containing a polyolefin resin composition containing ethylene-&agr;-olefin copolymer having: (A) a density d of 0.86 to 0.96 g/cm3; (B) a melt flow rate MFR of 0.01 to 200 g/10 min; (C) a molecular weight distribution Mw/Mn of 1.5 to 4.5; (D) a composition distribution parameter Cb of 1.08 to 2.00; and (E) an orthodichlorobenzene-soluble content X (wt %), at 25° C. a density of d (g/cm3) and a melt flow rate MFR (g/10 min) satisfying that: (i) when the density (d) and the melt flow rate MFR satisfy relationship (I): d−0.008×log MFR≧0.93 (I) the orthodichlorobenzene-soluble content X satisfies relationship (II): X
摘要翻译:含有含有(A)密度d为0.86〜0.96g / cm 3的乙烯-α-烯烃共聚物的聚烯烃树脂组合物的层压体; (B)熔体流动速率MFR为0.01〜200g / 10min; (C)分子量分布Mw / Mn为1.5〜4.5; (D)组成分布参数Cb为1.08〜2.00; 和(E)邻二氯苯可溶成分X(重量%),在25℃下,d(g / cm 3)的密度和熔体流动速率MFR(g / 10min)满足:(i)当密度 (d),熔体流动速率MFR满足关系式(I):邻二氯苯可溶成分X满足关系式(II):( ii)当密度d和熔体流动速率MFR满足关系式(III)时: 内容X满足关系(IV):
摘要:
An ethylene-.alpha.-olefin copolymer having: (A) a density d of 0.86 to 0.96 g/cm.sup.3 ; (B) a melt flow rate MFR of 0.01 to 200 g/10 min; (C) a molecular weight distribution Mw/Mn of 1.5 to 4.5; (D) a composition distribution parameter Cb of 1.08 to 2.00; and (E) an orthodichlorobenzene-soluble content X (wt %), at 25.degree. C. a density of d (g/cm.sup.3) and a melt flow rate MFR (g/10 min) satisfying that: (i) when the density (d) and the melt flow rate MFR satisfy relationship (I):d-0.008.times.logMFR.gtoreq.0.93 (I)the orthodichlorobenzene-soluble content X satisfies relationship (II):X
摘要:
A polyethylene composition which has excellent flow characteristics and mechanical properties, especially low temperature mechanical properties as well as thermal stability, elasticity and workability for molding. The polyethylene composition comprises 20 to 80 wt. % of an ethylene-.alpha.-olefin copolymer of higher molecular weight having (a) intrinsic viscosity (.eta..sub.1) of 1.2 to 9.0 dl/g, (b) density (d.sub.1) of 0.890 to 0.935 g/cm.sup.3 (c) a specific areal ratio calculated with an elution temperature-eluate volume curve in elution fractionation, and (d) a specific quantity of the content which is soluble in 25.degree. C. o-dichlorobenzene, and 80 to 20 wt. % of ethylene homopolymer or ethylene-.alpha.-olefin copolymer of lower molecular weight having (e) intrinsic viscosity (.eta..sub.2) of 0.2 to 1.6 dl/g, (f) density (d.sub.2) of 0.890 to 0.980 g/cm.sup.3 and, wherein the above (.eta..sub.1) is larger than (.eta..sub.2), and the prepared composition has an intrinsic viscosity (.eta.) of 0.77 to 5.2 dl/g, a density (d) of 0.890 to 0.950 g/cm.sup.3 and a specific N-value of 1.7 to 3.5.
摘要翻译:具有优异的流动特性和机械性能,特别是低温机械性能以及热稳定性,弹性和成型加工性的聚乙烯组合物。 聚乙烯组合物包含20至80wt。 (a)特性粘度(η)为1.2〜9.0dl / g,(b)密度(d1)为0.890〜0.935g / cm 3的高分子量乙烯-α-烯烃共聚物(c)特定粘度 在洗脱分级中用洗脱温度 - 洗脱液体积曲线计算的面积比,和(d)可溶于25℃邻二氯苯的含量的特定量,以及80-20重量% (e)特性粘度(η2)为0.2〜1.6dl / g的乙烯均聚物或乙烯-α-烯烃共聚物,(f)密度(d2)为0.890〜0.980g / cm 3,其中 上述(eta 1)大于(eta 2),所制备的组合物的特性粘度(η)为0.77〜5.2dl / g,密度(d)为0.890〜0.950g / cm 3, 价值1.7到3.5。
摘要:
A polyethylene based resin exhibiting excellent moldability and durability and having an excellent balance between impact resistance and stiffness; and a hollow plastic molded article using the foregoing resin, which exhibits excellent moldability, durability and barrier properties and has an excellent balance between impact resistance and stiffness, are provided. The polyethylene based resin satisfies the following requirements (1) to (4): (1) a high-load melt flow rate (HLMFR) is from 1 to 100 g/10 min; (2) a density is from 0.940 to 0.960 g/cm3; (3) a strain hardening parameter λmax of elongational viscosity is from 1.05 to 1.50; and (4) a rupture time in a full notch tensile creep test and a density satisfy the following relational expression (A): log(rupture time)≧−355×(density)+337.6(A).
摘要:
The polyethylene of the invention is polymerized using a chromium catalyst, and has a weight average molecular weight (Mw) of 30,000 or more at the maximum value in a branching degree distribution curve that shows a molecular weight dependency of short chain branches having 4 or more carbon atoms.
摘要:
A polyethylene based resin exhibiting excellent moldability and durability and having an excellent balance between impact resistance and stiffness; and a hollow plastic molded article using the foregoing resin, which exhibits excellent moldability, durability and barrier properties and has an excellent balance between impact resistance and stiffness, are provided. The polyethylene based resin satisfies the following requirements (1) to (4): (1) a high-load melt flow rate (HLMFR) is from 1 to 100 g/10 min; (2) a density is from 0.940 to 0.960 g/cm3; (3) a strain hardening parameter λmax of elongational viscosity is from 1.05 to 1.50; and (4) a rupture time in a full notch tensile creep test and a density satisfy the following relational expression (A): log (rupture time)≧−355×(density)+337.6 (A).