Electrical Device Comprising a Cross-linked Layer

Patent metadata

Field	Value
Publication number	US-2017309366-A1
Application number	US-201515514087-A
Country	US
Kind code	A1
Filing date	Sep 21, 2015
Priority date	Sep 26, 2014
Publication date	Oct 26, 2017
Grant date	—

Abstract

The present invention relates to an electrical device ( 1, 20, 30 ) comprising a cross-linked layer ( 3, 4, 5 ) obtained on the basis of a cross-linkable polymer composition comprising a polymer material and particles with polyhedric structure, characterized in that the particles have a melting point of at most 200° C.

First claim

1 . An electrical device ( 1 , 20 , 30 ) comprising a crosslinked layer ( 3 , 4 , 5 ) obtained from a crosslinkable polymer composition comprising a polymer material and particles having a polyhedral structure, characterized in that the particles have a melting point of at most 200° C.

2 . The device as claimed in claim 1 , characterized in that the particles comprise Si—O groups.

3 . The device as claimed in claim 1 or 2 , characterized in that the particles are POSSs (polyhedric oligomeric silsesquioxanes).

4 . The device as claimed in any one of the preceding claims, characterized in that the particles comprise at least one vinyl (CH═CH 2 ) functional group.

5 . The device as claimed in any one of the preceding claims, characterized in that the particles are nanoparticles.

6 . The device as claimed in any one of the preceding claims, characterized in that the crosslinkable polymer composition comprises at most 20.0% by weight of particles having a polyhedral structure and preferably at most 10.0% by weight of particles having a polyhedral structure, with respect to the total weight of the crosslinkable polymer composition.

7 . The device as claimed in any one of the preceding claims, characterized in that the crosslinkable polymer composition comprises a crosslinking agent.

8 . The device as claimed in claim 7 , characterized in that the crosslinking agent is an organic peroxide.

9 . The device as claimed in claim 8 , characterized in that the crosslinkable polymer composition comprises less than 1.0% by weight of organic peroxide, with respect to the total weight of the crosslinkable polymer composition.

10 . The device as claimed in any one of the preceding claims, characterized in that the polymer material comprises one or more olefin polymers.

11 . The device as claimed in claim 10 , characterized in that the olefin polymer is an ethylene/propylene/diene monomer terpolymer (EPDM).

12 . The device as claimed in any one of the preceding claims, characterized in that it is an electric cable ( 1 ) comprising an elongated electrically conducting component surrounded by said crosslinked layer.

13 . The device as claimed in claim 12 , characterized in that the elongated conducting component ( 2 ) is surrounded by a first semiconducting layer ( 3 ), an electrically insulating layer ( 4 ) surrounding the first semiconducting layer, and a second semiconducting layer ( 5 ) surrounding the electrically insulating layer, the crosslinked layer being at least one of these three layers, and the crosslinked layer preferably being the electrically insulating layer ( 4 ).

14 . The device as claimed in any one of claims 1 to 12 , characterized in that it is an electric cable accessory ( 20 , 30 ), said accessory comprising the crosslinked layer.

15 . The device as claimed in claim 14 , characterized in that the accessory is an electric cable joint or termination.

Assignees

• Nexans

Inventors

• Larche Jean-Francois
• Combessis Anthony
• Keromnes Laurent

Classifications

• C08K5/14

  Peroxides · CPC title

• C08K5/549

  containing silicon in a ring · CPC title

• H01B3/441 Primary

  from alkenes · CPC title

• H02G15/188

  connected to a cable shield only · CPC title

• H02G1/14

  for joining or terminating cables · CPC title