公开(公告)号：US20200010640A1

公开(公告)日：2020-01-09

申请号：US16468033

申请日：2017-12-22

Applicant: Arkema France

Inventor： Christian LAURICHESSE ,  Thibaut SEVERAC ,  Angélique LELIEVRE ,  Claire Isabelle MICHALOWICZ ,  Louis DEFOOR ,  Yves CABON

IPC: C08K5/1545 ,  C07D311/72 ,  C08F210/02

Abstract: The present invention relates to the use of one or more phenolic compounds, as defined below, to stabilise ethylene copolymer reactions at high pressure.The invention also relates to a method of preparing an ethylene copolymer at high pressure in the presence of one or more phenolic compounds, as defined below, and one or more initiators.

公开(公告)号：US20180066108A1

公开(公告)日：2018-03-08

申请号：US15812653

申请日：2017-11-14

Applicant: ARKEMA FRANCE

Inventor： Benjamin SAILLARD ,  Philippe BLONDEL ,  Claire Isabelle MICHALOWICZ

IPC: C08G69/26 ,  C08J5/18 ,  C08G69/36 ,  C08L77/06 ,  C08L77/00 ,  C08L77/12

CPC classification number: C08G69/26 ,  C08G69/265 ,  C08G69/36 ,  C08J5/18 ,  C08J2377/00 ,  C08L77/00 ,  C08L77/06 ,  C08L77/12 ,  Y10T428/1352 ,  Y10T428/139 ,  C08L2666/20

Abstract: The present invention relates to a copolyamide comprising at least two units and corresponding to the following general formula: A/(diamine)·(Cw diacid), in which: the diamine is a cycloaliphatic diamine, w represents the number of carbon atoms of the diacid, A is chosen from a unit obtained from an amino acid or from a lactam and a unit corresponding to the formula (Cx diamine)·(Cy diacid), with x representing the number of carbon atoms of the diamine and y representing the number of carbon atoms of the diacid, and in which at least one of the monomers chosen from A and the Cw diacid is obtained, in all or part, from renewable starting materials according to Standard ASTM D6866. The invention also relates to a composition comprising this copolyamide and to the use of this copolyamide and of such a composition.