摘要:
Elastomeric polypropylenes modified by grafting and blends thereof with isotactic polypropylenes modified by grafting, and the use thereof as compatibilizers or adhesion promoters for blends and metal composites.
摘要:
Fiber reinforced composition comprising a heterophasic propylene copolymer, a propylene homopolymer and/or a propylene copolymer, and fibers, wherein the propylene copolymer comprises not more than 2.0 wt.-% C2 to C10 α-olefins other than propylene, the propylene homopolymer and the propylene copolymer have a melt flow rate MFR2 (230° C.) of at least 500 g/10 min, and the composition has a melt flow rate MFR2 (230° C.) of at least 10 g/10 min.
摘要:
Extrusion blown film comprising a polypropylene composition, said polypropylene composition comprises a random propylene copolymer, a high melt strength polypropylene, a polypropylene and optionally a clarifier, wherein • the random propylene copolymer comprises units derived from propylene and at least another C2 to C20 α-olefin, • the high melt strength polypropylene has a branching index g′ of less than 1.0, the polypropylene (B) has a MFR2 (230° C.) of at least 400 g/10 min, • the clarifier comprises at least one α-nucleating agent, and wherein further • the branching index g′ of the random propylene copolymer and the branching index g′ of the polypropylene are higher than the branching index g′ of the high melt strength polypropylene, • the random propylene copolymer has lower melt flow rate MFR2 (230° C.) than the polypropylene, • the extrusion melt blown film and/or the polypropylene composition (i) fulfill(s) the equation (I) Tm−Tc
摘要:
Extrusion blown film comprising a polypropylene composition, said polypropylene composition comprises a random propylene copolymer, a high melt strength polypropylene, and optionally a clarifier, wherein • the random propylene copolymer comprises units derived from propylene and at least another C2 to C20 α-olefin. • the high melt strength polypropylene has a branching index g′ of less than 1.0. • the clarifier comprises at least one α-nucleating agent, and wherein further • the branching index g′ of the random propylene copolymer is higher than the branching index g′ of the high melt strength polypropylene, • the extrusion melt blown film and/or the polypropylene composition, (i) fulfill(s) the equation (I) Tm−Tc≦30 wherein Tm is the melting temperature [° C.] making up more than 50% of the total melting enthalpy Hm of the extrusion melt blown film or of the polypropylene composition measured by DSC according to ISO 11357-3; Tc is the crystallization temperature [° C.] of the extrusion melt blown film or of the polypropylene composition measured by DSC according to ISO 11357-3; and/or (ii) has (have) a melt flow rate MFR2 (230° C.) measured according to ISO 1133 of 1.0 to 5.5 g/10 min.
摘要:
Extrusion blown film comprising a polypropylene composition, said polypropylene composition comprises a random propylene copolymer, a high melt strength polypropylene, and optionally a clarifier, wherein • the random propylene copolymer comprises units derived from propylene and at least another C2 to C20 α-olefin. • the high melt strength polypropylene has a branching index g′ of less than 1.0. • the clarifier comprises at least one α-nucleating agent, and wherein further • the branching index g′ of the random propylene copolymer is higher than the branching index g′ of the high melt strength polypropylene, • the extrusion melt blown film and/or the polypropylene composition, (i) fulfill(s) the equation (I) Tm−Tc≦30 wherein Tm is the melting temperature [° C.] making up more than 50% of the total melting enthalpy Hm of the extrusion melt blown film or of the polypropylene composition measured by DSC according to ISO 11357-3; Tc is the crystallization temperature [° C.] of the extrusion melt blown film or of the polypropylene composition measured by DSC according to ISO 11357-3; and/or (ii) has (have) a melt flow rate MFR2 (230° C.) measured according to ISO 1133 of 1.0 to 5.5 g/10 min.
摘要:
Polypropylenes having a reduced tendency to white fracture, which contain A) from 70 to 95% by weight of a highly isotactic polypropylene having anisotactic index of more than 90 and a melt flow index between 0.1 and 100 g/10 min, it being possible for the polypropylene to be a homopolymer of propylene or a copolymer of propylene with one or more .alpha.-olefins, having a propylene content of at least 50 mol %, and B) from 5 to 30% by weight of a highly amorphous polypropylene having a crystalline polypropylene fraction of up to 10% by weight with an enthalpy of fusion of not more than 40 J/g and a melt flow index between 0.1 and 100 g/10 min, it being possible for the polypropylene to be a homopolymer of propylene or a copolymer of propylene with one or more .alpha.-olefins, having a propylene content of at least 80 mol %.
摘要:
The present invention is directed to a first polypropylene composition comprising a propylene copolymer as matrix phase (A) comprising a homo/random/block copolymer consisting of a) a propylene homopolymer (A1); b) a propylene random copolymer (A2); and c) an ethylene-propylene rubber (EPR) (A3) and a polyolefin (B) dispersed in the matrix phase (A), which comprises hydrolysable silicon-containing groups. The present invention is furthermore directed to a second polypropylene composition comprising a matrix phase (A) comprising a propylene homo- or copolymer with an impact strength at +23° C. of at least 40.0 kJ/m2 in a Charpy notched test according to ISO 179-1eA:2000 and a polyolefin (B) dispersed in the matrix phase (A), which comprises hydrolysable silicon-containing groups. The invention is furthermore directed to a production process for the polypropylene compositions and an article made thereof.
摘要翻译:本发明涉及包含丙烯共聚物作为基质相(A)的第一聚丙烯组合物,其包含由a)丙烯均聚物(A1)组成的均相/无规/嵌段共聚物; b)丙烯无规共聚物(A2); 和c)分散在基质相(A)中的乙丙橡胶(EPR)(A3)和聚烯烃(B),其包含可水解的含硅基团。 本发明还涉及一种第二聚丙烯组合物,其包含在根据ISO的Charpy缺口试验中包含至少40.0kJ / m 2的冲击强度在+ 23℃下的丙烯均聚物或共聚物的基体相(A) 179-1eA:2000和分散在基质相(A)中的聚烯烃(B),其包含可水解的含硅基团。 本发明还涉及聚丙烯组合物的制备方法及其制成的制品。
摘要:
The present invention relates to a polypropylene composition comprising: a matrix phase comprising a polypropylene homo- or copolymer (A); and a phase dispersed in said matrix phase comprising an olefin homo- or copolymer (B) having hydrolysable silicon-containing groups, and an inorganic filler material (C) containing on its surface silanol groups or precursors thereof, and having a specific surface BET of 30 to 300 m2/g, determined according to ISO 9277:1995, to an article comprising such a composition, and to the use of such a composition for the production of an article.
摘要:
The present invention provides a heterophasic polypropylene composition comprising a selective cross-linkable dispersed phase, a method for the production thereof, and their use in different applications. The cross-linkable reaction can be carried out at a temperature of 10 to 40° C. under a humidity of below 85% and with cross-linking degree of at least 30%.