摘要:
The present invention relates to a polymer composition comprising a polyolefin base resin comprising (A) a propylene homopolymer with a MWD of 1.5 to 5.0, and (B) an ethylene copolymer with one or more comonomers selected from alpha-olefins with 4 to 12 carbon atoms, having a density of not greater than 920 kg/m 3 wherein the polyolefin base resin has a weight ratio of propylene homopolymer (A) to ethylene copolymer (B) from 95:5 to 60:40, the use of such a polymer composition for the manufacture of an injection molded article, an article produced from such a polymer composition, an article with a grained surface structure produced from such a polymer composition showing having a scratch resistance, determined as the difference of the luminance ΔL at a load of 10 N, of not more than 1 and a gloss at an angle of 60° of not more than 2.8%, and the use of a polymer composition for the production of such an article.
摘要翻译:本发明涉及包含聚烯烃基础树脂的聚合物组合物,其包含(A)MWD为1.5至5.0的丙烯均聚物,和(B)与一种或多种选自具有4至12碳的α-烯烃的共聚单体的乙烯共聚物 原子,其密度不大于920kg / m 3,其中聚烯烃基树脂具有丙烯均聚物(A)与乙烯共聚物(B)的重量比为95:5至60:40,使用这种聚合物 用于制造注射成型制品的组合物,由这种聚合物组合物制备的制品,由具有耐擦伤性的这种聚合物组合物制成的具有颗粒表面结构的制品被确定为亮度“L在负载 10N,不大于1,角度为60°的光泽度不大于2.8%,以及使用聚合物组合物制造这种制品。
摘要:
A process for improving the impact resistance of polyolefins without compromising stiffness and processability by adding core-shell nanoparticles comprising a mineral core and a polymeric shell which is coupled chemically to the core.
摘要:
The present invention relates to a polyolefin composition comprising an olefin homo- or copolymer (A) in an amount of 90 wt.% or more, and an olefin homo- or copolymer (B) comprising hydrolysable silicon-containing groups, wherein olefin homo- or copolymer (B) is present in the composition in an amount of from 0.01 to 2 wt.%.
摘要:
The present invention relates to a composition, in particular to a polypropylene composition, and articles thereof, having an optimal balance between mechanical properties and transparency and thus the composition is particular suitable for packaging applications.
摘要:
A propylene polymer composition having a high impact strength and a high stiffness for the manufacture of parts having an excellent surface quality comprising A) 70 to 98 wt.-% of a heterophasic propylene copolymer with ethylene or an alpha-olefin with 4 to 12 carbon atoms, the propylene copolymer, which contains more than 60 wt.-% propylene, having a melt flow rate (MFR 2 ) of 0.5 to 50 g/10min and a ratio between elastomer molecular weight and total molecular weight expressed as M w /M w (XCS) of more than 0.8, M w being the weight average molecular weight of the propylene copolymer and M w (XCS) being the weight average molecular weight of the propylene copolymer which is soluble in xylene at +23°C, and the propylene copolymer further containing a portion of 5 to 35 wt.-% soluble in xylene at +23°C (XCS content), B) 2 to 30 wt.-% of a mineral filler, C) 0.0001 to 1.0 wt.-% of a β-nucleating agent promoting the β-modification of the propylene copolymer, said composition having a content of β-modification of more than 50 % determined by differential scanning calorimetry (DSC) and an impact strength at -20°C which is at least 50 % higher than the impact strength of the propylene copolymer (A).
摘要翻译:一种丙烯聚合物组合物,具有高冲击强度和高刚性,用于制造具有优异表面质量的部件,其包括A)70-98重量%的多烯丙烯共聚物与乙烯或具有4至12个碳原子的α-烯烃 原子,丙烯共聚物,其含有大于60重量%的丙烯,其熔体流动速率(MFR 2)为0.5至50g / 10min,弹性体分子量与总分子量之间的比率表示为M w / M w(XCS)大于0.8,M w是丙烯共聚物的重均分子量,M w(XCS)是在+ 23℃下可溶于二甲苯的丙烯共聚物的重均分子量, 丙烯共聚物,其进一步含有在23℃下可溶于二甲苯的部分为5〜35重量%(XCS含量),B)2〜30重量%的矿物填料,C)0.0001〜1.0重量% 的促进丙烯共聚物的2-改性的2-成核剂,所述组合物具有a 通过差示扫描量热法(DSC)测定的大于50%的改性含量和在-20℃下的冲击强度比丙烯共聚物(A)的冲击强度高至少50%。
摘要:
Insulation layer for cables comprising a heterophasic polymer composition having superior mechanical and electrical properties and being environmentally friendly. The heterophasic polymer composition comprises a polymer matrix and dispersed therein a propylene copolymer having a weight average particle size of less than 1 µm.
摘要:
The present invention relates to polyolefin compositions comprising man-made cellulose fibers of very high modulus to improve the mechanical performance of said compositions while retaining a low density. The present invention further relates to a melt mixing process with controlled shear intensity and energy input especially suitable for the production of said compositions.
摘要:
The present invention concerns a novel polymer composition comprising a specific combination of reinforcing agents. Due to the combination of inorganic reinforcing agents and organic reinforcing agents polymer compositions with a unique balance of properties can be obtained.
摘要:
The present invention relates to a novel β-nucleating agent for polypropylene and a process for preparing same. Preferably, the β-nucleating agent is a water-free admixture of calcium carbonate and a calcium salt of a dibasic organic acid.