公开(公告)号：US12060516B2

公开(公告)日：2024-08-13

申请号：US16088341

申请日：2017-04-07

Applicant: ARKEMA FRANCE

Inventor： Thierry Briffaud ,  Philippe Blondel ,  Patrick Dang ,  Francois Fernagut ,  Jean-Jacques Flat ,  Benjamin Saillard

IPC: C09K3/12 ,  C08G69/14 ,  C08G69/34 ,  C08G69/36 ,  C08L77/02 ,  C08L77/06

CPC classification number: C09K3/12 ,  C08G69/14 ,  C08G69/34 ,  C08G69/36 ,  C08L77/02 ,  C08L77/06 ,  C08G2190/00 ,  C08G2250/00 ,  C08L2203/18

Abstract: The invention relates to the use of a composition comprising at least one polyamide, of which at least one is a semicrystalline copolyamide comprising at least one minor motif resulting from the polycondensation of: at least one diamine with at least one polymerised fatty acid, in particular a fatty acid dimer; or at least one diamine dimer with at least one carboxylic acid; or at least one amino acid dimer; or mixtures of same, as a sealing coating in a pipe containing oil or gas, said pipe being used in the operation of offshore oil or gas deposits.

公开(公告)号：US11384214B2

公开(公告)日：2022-07-12

申请号：US16763571

申请日：2018-11-16

Applicant: Arkema France

Inventor： Clio Cocquet ,  Quentin P. Pineau ,  Helena Cheminet ,  Francois Fernagut

IPC: C08J9/00 ,  C08J9/04 ,  C08G81/02

Abstract: The invention relates to a noncrosslinked block copolymer foam, comprising at least one rigid block and at least one flexible block, in which the copolymer includes at least one carboxylic acid chain end blocked with a polycarbodiimide. The invention also relates to a process for manufacturing this foam and to articles manufactured therefrom.

公开(公告)号：US20200377773A1

公开(公告)日：2020-12-03

申请号：US16088341

申请日：2017-04-07

Applicant: ARKEMA FRANCE

Inventor： Thierry Briffaud ,  Philippe Blondel ,  Patrick Dang ,  Francois Fernagut ,  Jean-Jacques Flat ,  Benjamin Saillard

IPC: C09K3/12 ,  C08L77/02 ,  C08L77/06 ,  C08G69/34 ,  C08G69/36 ,  C08G69/14

Abstract: The invention relates to the use of a composition comprising at least one polyamide, of which at least one is a semicrystalline copolyamide comprising at least one minor motif resulting from the polycondensation of: at least one diamine with at least one polymerised fatty acid, in particular a fatty acid dimer; or at least one diamine dimer with at least one carboxylic acid; or at least one amino acid dimer; or mixtures of same, as a sealing coating in a pipe containing oil or gas, said pipe being used in the operation of offshore oil or gas deposits.