TH100491A - Polypropylene mixtures with additives and / or pigments - Google Patents

Abstract

DC60 (01/02/51) A polypropylene mixture with a specific MFR (2.16 kg, 230 °C) of 15 to 200 g/10 min, consisting of: A) a selected propylene polymer or polymer mixture of propylene homopolymer or copolymer of propylene with up to 5% by molecular weight of comonomers, such homopolymers and copolymers with an MFR value obtained without molecular breakdown action, from 500 to 2500 g/10 min, or a combination of such homopolymers or copolymers; B) fillers or pigments, or a combination of them; and, alternatively, C) from 0.5 to 5% by weight, relative to the total weight of A), B), and C), of the compatibilizer. A polypropylene mixture with a specific MFR (2.16 kg, 230 °C) of 15 to 200 g/10 min, consisting of: A) propylene polymer or a selected polymer mixture of propylene homopolymer or copolymer of propylene with up to 5% by molecular weight of comonomers, such homopolymers and copolymers with an MFR value obtained without molecular breakdown action, from 500 to 2500 g/10 min, or a combination of such homopolymers or copolymers; B) fillers or pigments, or a combination of them; and, alternatively, C) from 0.5 to 5% by weight, relative to the total weight of A), B), and C), of the compatibilizer.

Claims (9)

1. A polypropylene mixture with a certain MFR value, measured according to ISO 1133, with a packing weight of 2.16 kg at 230 °C, from 15 to 200 g/10 min, and consisting of: A) propylene polymer or a selection of polymer mixtures of propylene homopolymer or copolymer of propylene with up to 5% by molecular weight of comonomers, such homopolymers and copolymers with an MFR value obtained without molecular degradation action, from 500 to 2500 g/10 min, or a combination of such homopolymers or copolymers; B) fillers or pigments, or a combination of them; and, alternatively, C) from 0.5 to 5% by weight, relative to the total weight of A), B), and C), of the compatibilizer. 2. A mixture of claim 1, in which propylene homopolymer and copolymer of composition A) are obtained directly through polymerization in the presence of a system of metallocene-based catalysts. 3. A mixture of claim 1, in which the propylene homopolymer and copolymer of composition A) have a molecular weight distribution, in terms of Mw/Mn ratio, that is less than 4. 4. A mixture of claim 1, consisting of A) from 10% to 80% by weight and B) from 20% to 90% by weight, relative to the total weight of A) and B). 5. A mixture of claim 1, consisting of A) from 10% to 75% by weight, and B) from 20% to 89% by weight, and C) from 0.5% to 5% by weight, in relation to the total weights of A), B), and C). 6. A mixture of claims 1, where B) may be selected from inorganic fillers and fibers, or a combination thereof. 7. A mixture of claims 5, where B) by necessity shall consist of glass fibers. 8. Utilization of the compounds of claim 1 for parts manufactured by injection molding, extrusion, or thermoforming. 9. Utilization of a concentrated mixture of claim 1.