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A cross-linkable polyolefin composition comprising a first and a second olefin polymer

A technology of olefin polymers and compositions, which is applied in the field of polyolefin compositions, and can solve problems such as influence on electrical properties, toxicity treatment methods, storage, moisture resistance and cost, and discoloration of final products

Pending Publication Date: 2021-02-26
BOREALIS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] However, the above-mentioned curing agents also have their own disadvantages, especially in terms of toxicity, handling, storage, moisture resistance and cost
In addition, it has been found that crosslinking with the above curing agents can lead to discoloration of the final product, showing a yellow to orange color rather than being colorless
Also, any unreacted curing agent or Lewis acid remaining after the crosslinking step will negatively impact electrical properties

Method used

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  • A cross-linkable polyolefin composition comprising a first and a second olefin polymer
  • A cross-linkable polyolefin composition comprising a first and a second olefin polymer
  • A cross-linkable polyolefin composition comprising a first and a second olefin polymer

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Embodiment Construction

[0118] 1. Materials

[0119] The materials used in the compositions of the present invention are described below. In particular, polymers (P1-P10) are classified as polymers (A) (ie polymers bearing epoxy groups), polymers (B) (ie polymers bearing carboxylic acid functional groups or their precursors) ) or polymer (C).

[0120] 1.1 P1(A)

[0121] P1 is a polymer of ethylene-glycidyl methacrylate, the glycidyl methacrylate content of the polymer is 8wt%, MFR 2 (2.16kg / 190℃) is 5g / 10min, density is 940kg / m 3 , with a melting point of 106 °C, commercially available from Arkema.

[0122] 1.2 P2(B)

[0123] P2 is ethylene-methacrylic acid copolymer resin, the methacrylic acid comonomer of the resin is 7wt%, and the density is 0.93g / cm 3 , MFR 2 (190°C / 2.16kg) was 8g / 10min, commercially available from Dow.

[0124] 1.3 P3(C)

[0125] P3 is LDPE homopolymer, MFR 2 (190℃ / 2.16kg) is 1.9g / 10min, density is 0.923g / cm 3 .

[0126] 1.4 P4(A)

[0127] P4 is a copolymer of ethyl...

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Abstract

The present invention relates to a cross-linkable polyolefin composition comprising a first olefin polymer (A) comprising a first comonomer comprising epoxy groups, and a second olefin polymer (B) comprising a second comonomer comprising carboxylic acid groups and / or precursor thereof.

Description

technical field [0001] The present invention relates to a crosslinkable polyolefin composition comprising: a first olefin polymer (A) comprising a first comonomer containing an epoxy group and a second comonomer comprising a carboxylic acid group The second olefin polymer (B) of the body, also relates to a cable comprising at least one layer comprising this polyolefin composition, and to a process for the manufacture of this polyolefin composition. Background technique [0002] Polyethylene produced in high pressure (HP) processes is widely used in demanding polymer applications where the polymer must meet high mechanical and / or electrical requirements. For example, in W&C applications, such as power cable applications, such as low voltage (LV), medium voltage (MV), high voltage (HV) and extra high voltage (EHV) applications, polyethylene and polymer compositions comprising polyethylene The mechanical and electrical properties are of great significance. [0003] Also, sign...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08G81/02C08J3/24C08J3/00
CPCC08J3/005C08J3/24C08J2323/08C08L23/06C08L23/0869C08L23/0884C08L2203/202C08L2205/05C08L2312/00C08J3/246C08J2323/06C08J2423/06C08J2423/08C08L2205/025C08L2205/035C08L2207/04C08L2207/066
Inventor O·普列托D·亚拉洛夫M·莫里C·穆勒A·彼得森
Owner BOREALIS AG
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