Unlock instant, AI-driven research and patent intelligence for your innovation.

Propylene Ethylene Random Copolymer

A propylene ethylene and copolymer technology, applied in the field of propylene ethylene random copolymer, can solve problems such as harmful processing performance

Active Publication Date: 2022-05-17
BASSELL POLIOLEFINE ITAL SRL
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the product described in PCT / EP2018 / 057505 also has a high intrinsic viscosity, which may be detrimental from a processability point of view

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Propylene Ethylene Random Copolymer
  • Propylene Ethylene Random Copolymer
  • Propylene Ethylene Random Copolymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Preparation of Ziegler-Natta Solid Catalyst Components

[0094] Ziegler-Natta catalysts were prepared according to Example 5, lines 48 to 55 of European Patent EP728769B1.

[0095] Catalyst System Preparation - Precontact

[0096] The above solid catalyst component was contacted with triethylaluminum (TEAL) and dicyclopentyldimethoxysilane (D donor) under the conditions reported in Table 1 before its introduction into the polymerization reactor.

[0097] pre-polymerization

[0098] The catalyst system was then subjected to a prepolymerization treatment at 20° C. by keeping it suspended in liquid propylene for about 9 minutes before being introduced into the polymerization reactor.

[0099] polymerization

[0100] As described in European patent EP782587, the polymerization is carried out in a gas phase polymerization reactor comprising two interconnected polymerization zones, a riser and a downcomer. Hydrogen is used as molecular weight regulator. The polymer pelle...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melt flow indexaaaaaaaaaa
melt flow indexaaaaaaaaaa
melt flow indexaaaaaaaaaa
Login to View More

Abstract

A propylene ethylene copolymer having: i) a xylene soluble fraction at 25°C of 14 wt% to 27 wt%; ii) a xylene soluble fraction at 25°C of 1.0-2.4 dl / g properties Viscosity; iii) Melt flow rate MFR of 1.0 g / 10min to 50.0 g / 10min; iv) ethylene derived unit content of 5.0 wt% to 12.0 wt%; v) xylene at 25°C of 2.5 wt% to 6.0 wt% Ethylene-derived unit content on the insoluble fraction; vi) 15.2.wt% to 30.2wt% ethylene-derived unit content in the xylene soluble fraction at 25°C; vii) 3.5mol% to 5.5mol% at 25°C C measured on the xylene soluble fraction 13 NMR sequence PEP, 11.0 mol% to 14.2 mol% C measured on the xylene insoluble fraction at 25 °C 13 NMR sequence PEP.

Description

technical field [0001] The present invention relates to random copolymers of propylene and ethylene obtained by a gas phase process, especially suitable for films or injection molded articles. Background technique [0002] Isotactic polypropylene is known to have an excellent combination of properties which makes it suitable for a very large number of applications. [0003] In order to improve the properties of isotactic polypropylene, the crystallinity of propylene homopolymer is reduced by copolymerization of propylene with small amounts of ethylene and / or α-olefins such as 1-butene, 1-pentene and 1-hexene. In this way, so-called random crystalline propylene copolymers are obtained which are intrinsically better in flexibility and clarity when compared to homopolymers. [0004] PCT / EP2018 / 057505 describes propylene-ethylene copolymers having: [0005] An ethylene-derived unit content of 2.0 wt% to 11.0 wt%; [0006] 7.1 wt% to 28.5 wt% xylene soluble fraction at 25°C; ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08F210/16C08L23/14C08F210/06
CPCC08F210/06C08F210/16C08L23/14C08L2203/16C08F2500/12C08F2500/17C08F2500/26C08F210/02C08F4/6492C08F2/34C08L23/142C08L2205/02C08L2207/10C08F2800/20C08F2500/27
Inventor P·马萨里C·卡瓦列里D·塔尔塔里T·卡普托I·M·V·卡穆拉蒂
Owner BASSELL POLIOLEFINE ITAL SRL