Abstract:
wherein the amounts of A) and B) are referred to the total weight of A)+B) and the DSC second heating scan is carried out with a heating rate of about 10° C. per minute.
Abstract:
A hot melt adhesive polyolefin composition comprising a high melt flow butene-1 copolymer suitable to be used as a glue in paper and packaging industry, in furniture manufacture e.g. for edgebands, particularly square edges and softforming, for paneling in high moisture environments, particularly suitable for acting as a glue in tufted or needle punched carpets.
Abstract:
Extruded or molded profiles comprising a polyolefin composition consisting of 85% by weight or more of a copolymer of 1-butene with ethylene (A) having an ethylene copolymerized content up to 18 % bymol, and having Mw/Mn lower than 3, hardness shore A (measured according to ISO 868) lower than 90, no melting point (TmII) detectable at the DSC after cancelling the thermal history, melting enthalpy (ΔHf), measured by DSC after 10 days of aging at room temperature,comprised between 4 and 15 J/g; and up to 15% by weight of a propylene copolymer or a composition of copolymers of propylene (B) having a melting point from about 26°C to 200°C, isotactic index greater than 90%.
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。