公开(公告)号：US10597521B2

公开(公告)日：2020-03-24

申请号：US16330804

申请日：2017-09-08

Applicant: Arkema France

Inventor： Chao Lu

IPC: C08L23/06 ,  C08L23/08 ,  C08K5/14 ,  H01L31/048 ,  C08K5/109 ,  C08K5/11 ,  C08K5/12 ,  C08K5/3415 ,  C08K5/3492

Abstract: The present invention pertains to a curable composition comprising (a) at least one ethylene polymer, (b) less than 2 parts by weight of at least one monoperoxycarbonate for 100 parts by weight of constituent (a), (c) from 0.4 to less than 4 part by weight of at least one t-alkyl hydroperoxide for 100 parts by weight of constituent (b). It is also directed to a method for preventing scorching of a curable composition comprising an ethylene polymer, by adding a specific amount of t-alkyl hydroperoxide thereto and to a method for manufacturing a scorch-protected material.

公开(公告)号：US12018139B2

公开(公告)日：2024-06-25

申请号：US16770169

申请日：2018-12-14

Applicant: Arkema France

Inventor： Jean-Pierre Disson ,  Chao Lu

IPC: C08K5/14 ,  H01L31/048 ,  H01L31/18 ,  C08G18/86 ,  C08L83/04

CPC classification number: C08K5/14 ,  H01L31/0481 ,  H01L31/18 ,  C08G18/86 ,  C08K2201/014 ,  C08K2201/019 ,  C08L83/04

Abstract: The present invention concerns the use of a mixture of organic peroxides for crosslinking a polyolefin elastomer (POE), in particular intended to be used in photovoltaic applications. The invention also relates to a crosslinkable composition comprising at least one polyolefin elastomer (POE) and at least one mixture of organic peroxides. The present invention also concerns a method for preparing a material made from polyolefin elastomer (POE), preferably an encapsulating material or a sealing agent, in particular for photovoltaic cells, comprising a step of crosslinking a crosslinkable composition as defined previously.

公开(公告)号：US10189976B2

公开(公告)日：2019-01-29

申请号：US15560834

申请日：2016-02-24

Applicant: ARKEMA FRANCE

Inventor： Chao Lu

IPC: C08K5/14 ,  H01L31/048

Abstract: The present invention pertains to a curable composition comprising (a) at least one ethylene polymer, (b) at least one monoperoxycarbonate, and (c) from 0.05 to less than 0.4 part by weight of at least one t-alkyl hydroperoxide for 100 parts by weight of constituent (b). It is also directed to a method for preventing scorching of a curable composition comprising an ethylene polymer by adding a specific amount of t-alkyl hydroperoxide thereto.

公开(公告)号：US11111357B2

公开(公告)日：2021-09-07

申请号：US15327538

申请日：2015-07-22

Applicant: ARKEMA FRANCE

Inventor： Alfredo Defrancisci ,  Chao Lu

IPC: C08K5/14 ,  C08J3/24 ,  C08J5/18

Abstract: The use of peroxide(s) for cross-linking at least one polymer, the polymer having a homopolymer or copolymer of ethylene and especially the ethylene-vinyl acetate copolymer (EVA) or a mixture of the EVA with another homopolymer or copolymer of ethylene, and at least one peroxide, wherein the peroxide includes OO-tert-butyl O-isopropyl monoperoxycarbonate or OO-tert-amyl O-isopropyl monoperoxycarbonate and OO-tert-butyl-O-2-ethyl hexyl monoperoxycarbonate or OO-tert-amyl-O-2ethyl hexyl monoperoxycarbonate. Also, a cross-linkable composition including the peroxide and to a method for producing a cross-linked polymer as a result of the peroxide.