摘要:
A polypropylene composition containing a propylene/1-butene random copolymer which contains 60 to 90 mol % of propylene units and 10 to 40 mol % of 1-butene units and has a triad isotacticity of not less than 85% and not more than 97.5%, a molecular weight distribution of from 1 to 3, an intrinsic viscosity of from 0.1 to 12 dl/g, a melting point of from 40 to 75° C. and a crystallization rate at 45° C. of 10 minutes or less, and satisfying the following relation, 146 exp (−0.022M)≧Tm≧125 exp (−0.032M), and an olefin catalyst for preparation thereof.
摘要:
A polypropylene composition containing a propylene/1-butene random copolymer which contains 60 to 90 mol % of propylene units and 10 to 40 mol % of 1-butene units and has a triad isotacticity of not less than 85% and not more than 97.5%, a molecular weight distribution of from 1 to 3, an intrinsic viscosity of from 0.1 to 12 dl/g, a melting point of from 40 to 75° C. and a crystallization rate at 45° C. of 10 minutes or less, and satisfying the following relation, 146 exp (−0.022M)≧Tm≧125 exp (−0.032M), and an olefin catalyst for preparation thereof.
摘要:
In a packaging material for electrochemical cell, a thermally adhesive resin layer is configured of a resin having a propylene based elastomer resin in a propylene based resin. This propylene based elastomer resin is a copolymer composed of a constitutional unit derived from propylene and a constitutional unit derived from an α-olefin having from 2 to 20 carbon atoms; when the total sum of the constitutional unit derived from propylene and the constitutional unit derived from an α-olefin is defined as 100% by mole, contains 50% by mole or more of the constitutional unit derived from propylene; and is satisfied with (a) a Shore A hardness (ASTM D2240) of from 65 to 90, (b) a melting point of from 130 to 170° C., (c) a density (ASTM D1505) of from 860 to 875 kg/m3 and (d) a glass transition temperature as measured by DSC of from −25° C. to −35° C.
摘要翻译:在电化学电池用包装材料中,热粘合性树脂层由在丙烯系树脂中具有丙烯类弹性体树脂的树脂构成。 该丙烯类弹性体树脂是由来自丙烯的结构单元和来自具有2〜20个碳原子的α-烯烃的结构单元构成的共聚物; 当从丙烯衍生的结构单元和由α-烯烃衍生的结构单元的总和定为100摩尔%时,含有50摩尔%以上来自丙烯的结构单元; 并且(a)肖氏A硬度(ASTM D2240)为65至90,(b)熔点为130至170℃,(c)密度(ASTM D1505)为860至875 kg / m 3和(d)通过DSC测量的-25℃至-35℃的玻璃化转变温度。