FIELD: chemistry.
SUBSTANCE: group of inventions relates to a heterophase polypropylene composition with sufficiently high melt flow index, high hardness, acceptable impact properties and a favourable hardness to transparency ratio, a method of producing the polypropylene composition, an article made from the polypropylene composition and use of the polypropylene composition to make films and moulded articles such as thin-wall polymer packaging containers. The polypropylene heterophase composition contains at least a polypropylene homopolymer fraction, a random polypropylene copolymer fraction, two different ethylene polypropylene rubber fractions and an ethylene homo- or copolymer fraction.
EFFECT: good impact strength at low temperature and improved fluidity and transparency of the article.
15 cl, 9 tbl, 10 ex
| Title | Year | Author | Number |
|---|---|---|---|
| HETEROPHASIC COPOLYMER | 2014 |
|
RU2668075C2 |
| POLYPROPYLENE COMPOSITION WITH IMPROVED MANUFACTURABILITY AND IMPACT | 2020 |
|
RU2798417C1 |
| HIGH-FLOW HETEROPHASE POLYPROPYLENE COPOLYMERS WITH IMPROVED MECHANICAL AND OPTICAL PROPERTIES | 2017 |
|
RU2765100C1 |
| POLYOLEFIN COMPOSITION WITH IMPROVED IMPACT STRENGTH AND BLUSHING RESISTANCE | 2019 |
|
RU2782633C1 |
| POLYOLEFIN COMPOSITION WITH IMPROVED APPEARANCE | 2018 |
|
RU2754417C2 |
| USE OF A POLYMER COMPOSITION FOR MAKING ARTICLES WITH IMPROVED COLORABILITY AND IMPROVED SURFACE APPEARANCE | 2018 |
|
RU2739886C1 |
| USE OF A POLYMER COMPOSITION FOR THE MANUFACTURE OF PRODUCTS WITH IMRPOVED COLORABILITY AND IMPROVED SURFACE APPEARANCE | 2018 |
|
RU2747968C1 |
| TRANSLUCENT POLYOLEFIN BLENDS PROVIDING EXCELLENT BALANCE OF IMPACT STRENGTH - STIFFNESS AND FLOW | 2021 |
|
RU2805309C1 |
| POLYPROPYLENE COMPOSITION | 2018 |
|
RU2744581C1 |
| STERILISABLE AND IMPACT-RESISTANT POLYPROPYLENE COMPOSITION | 2008 |
|
RU2443729C2 |
