Abstract:
The present disclosure relates to a mixture comprising: (A) 70%-98% by weight of a bitumen; and (B) 2%-30% by weight of a butene-1 polymer composition having a Melt Flow Rate (MFR) value, measured according to ISO 1133-2:2011 at 190°C, 2.16kg, of from 200 to 1,500 g/10min., said composition comprising: (B I ) a butene-1 homopolymer or a copolymer of butene-1 having a copolymerized comonomer content (C I ) of up to 5% by mole; (B II ) a copolymer of butene-1 having a copolymerized comonomer content (C II ) of from 6% to 20% by mole; said composition (B) having a total copolymerized comonomer content from 4% to 15% by mole, referred to the sum of (B I ) and (B II ); wherein the amounts of (A) and (B) are referred to the total weight of (A) + (B).
Abstract:
A butene-1 polymer composition having MFR values of from 400 to 2000 g/10 min, measured according to ISO 1133 at 190°C with a load of 2.16 kg, comprising: A) a butene-1 homopolymer or a copolymer of butene-1 with one or more comonomers selected from ethylene and higher alpha-olefins, having a copolymerized comonomer content of up to 5% by mole; B) a copolymer of butene-1 with one or more comonomers selected from ethylene and higher alpha-olefins, having a copolymerized comonomer content of from 6% to 25% by mole; said composition having a total copolymerized comonomer content from 5% to 18% by mole, referred to the sum of A) and B), and a content of fraction soluble in xylene at 0°C of 65% by weight or more, determined on the total weight of A) and B).
Abstract:
A butene-1 polymer composition having MFR values of from 400 to 2000 g/10 min, measured according to ISO 1133 at 190°C with a load of 2.16 kg, comprising: A) a butene-1 homopolymer or a copolymer of butene-1 with one or more comonomers selected from ethylene and higher alpha-olefins, having a copolymerized comonomer content of up to 5% by mole; B) a copolymer of butene-1 with one or more comonomers selected from ethylene and higher alpha-olefins, having a copolymerized comonomer content of from 6% to 20% by mole; said composition having a total copolymerized comonomer content from 4% to 15% by mole, referred to the sum of A) and B), and a content of fraction soluble in xylene at 0°C of 60% by weight or less, determined on the total weight of A) and B).
Abstract:
A polyolefin composition having a melting enthalpy ΔHfus, measured by DSC at the second heating scan, of from 7 to 30 J/g, comprising: A) from 63 to 78% by weight of a copolymer of butene-1 with ethylene having a copolymerized ethylene content of up to 18% by mole and no melting peak detectable at the DSC at the second heating scan; B) from 22 to 37% by weight of (i) a propylene homopolymer, or (ii) a propylene copolymer, or (iii) a mixture of two or more of (i) and (ii), having a melting temperature Tm, measured by DSC at the second heating scan, of from 130°C to 165°C; wherein the amounts of A) and B) are referred to the total weight of A) + B).
Abstract translation:在第二次加热扫描中通过DSC测得的熔化焓ΔHfus为7-30J / g的聚烯烃组合物,其包含:A)63-78重量%的丁烯-1与乙烯的共聚物,其具有 在第二次加热扫描时DSC共聚合的乙烯含量高达18%摩尔并且在DSC处没有检测到熔融峰; B)22至37重量%的(i)丙烯均聚物或(ii)丙烯共聚物,或(iii)两种或更多种(i)和(ii)的混合物,其具有熔融温度T m ,在第二次加热扫描时通过DSC测量,为130℃至165℃; 其中A)和B)的量是指A)+ B)的总重量。