FIELD: chemistry.
SUBSTANCE: invention relates to an ethylene copolymer. Described is an ethylene copolymer for producing an injection moulding product. The ethylene copolymer is obtained by polymerising ethylene and a C3-C18 α-olefin comonomer. The ethylene copolymer is characterised by activation energy of 40 kJ/mol or higher and molecular weight distribution of 2.4 or higher. The ethylene copolymer satisfies the relationships between oscillating torque and phase angle in the section P≤168.8-97.4×t+32.2×t2-4.0×t3 and P≤204.3-157.7×t+58.0×t2-7.5×t3, where t is oscillating torque (mcN·m) and is in the range of 60 to 6000 mcN·m, P is phase angle (°). An injection moulding product is also described.
EFFECT: improved elasticity and processability without degradation of impact resistance and inflexibility of the ethylene copolymer.
10 cl, 3 dwg, 4 tbl, 14 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ETHYLENE COPOLYMER HAVING IMPROVED IMPACT STRENGTH | 2009 |
|
RU2469051C1 |
| ETHYLENE COPOLYMER AND METHOD OF PRODUCING SAID COPOLYMER | 2009 |
|
RU2468039C2 |
| ETHYLENE COPOLYMER WITH IMPROVED HYGIENIC PROPERTIES AND METHODS OF MAKING SAID COPOLYMER | 2011 |
|
RU2580552C2 |
| METHOD OF OBTAINING ELASTIC COPOLYMERS OF ETHYLENE AND ALPHA-OLEFINS | 2009 |
|
RU2512536C2 |
| MODERN CATALYTIC SYSTEMS WITH TRANSITION METAL BASED ON COMONOMER INCORPORATION AND METHODS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND OLEFINS USING THEM | 2011 |
|
RU2575004C2 |
| TRANSITION METAL BASED CATALYST SYSTEMS AND METHODS OF PRODUCING HOMOPOLYMERS OF ETHYLENE OR COPOLYMERS OF ETHYLENE AND α-OLEFINS USING SAID SYSTEMS | 2009 |
|
RU2507210C2 |
| FIBRE-REINFORCED POLYPROPYLENE COMPOSITION | 2022 |
|
RU2824441C1 |
| COMPOSITION OF A PROPYLENE COPOLYMER WITH EXCELLENT OPTICAL AND MECHANICAL PROPERTIES | 2019 |
|
RU2775266C1 |
| ETHYLENE TERPOLYMERS | 2008 |
|
RU2494112C2 |
| MULTIMODAL POLYMER | 2009 |
|
RU2496794C2 |
