公开(公告)号：US11377536B2

公开(公告)日：2022-07-05

申请号：US15522805

申请日：2015-11-05

申请人： ARKEMA FRANCE

发明人： Philippe Blondel ,  Fabrice Glasson ,  François Fernagut ,  Jean-Jacques Flat ,  Patrick Dang

IPC分类号： C08K3/014 ,  C08L77/02 ,  C08K3/16 ,  C08K5/29 ,  F16L11/04 ,  C08K3/32 ,  B32B27/34 ,  B32B27/32 ,  B32B27/08 ,  B32B27/18 ,  C08L77/06 ,  B32B27/22 ,  F16L11/06 ,  C08L79/00 ,  C08K5/435 ,  F16L58/00 ,  B32B1/08

摘要： The invention relates to the use of at least one catalyst, at least one copper heat stabiliser and at least one oligo- or poly-carbodiimide with a matrix including at least one polyamide, in order to form a composition that has a good melt viscosity and is stable during transformation, in particular during extrusion.

公开(公告)号：US20200299507A1

公开(公告)日：2020-09-24

申请号：US16088473

申请日：2017-04-07

申请人： Arkema France

发明人： Philippe Blondel ,  Thibaut Montanari ,  Fabrice Glasson ,  Thierry Briffaud

IPC分类号： C08L77/02 ,  B32B1/08 ,  B32B5/02 ,  B32B15/06 ,  B32B15/085 ,  B32B15/088 ,  B32B15/092 ,  B32B27/22 ,  B32B27/32 ,  B32B27/34 ,  B32B27/38 ,  B32B27/20 ,  E21B17/00

摘要： The present invention relates to the use of a composition comprising: 70 to 91% by weight of at least one semi-crystalline polyamide, 5 to 25% by weight of at least one polyolefin having an epoxy, anhydride or acid function introduced by grafting or copolymerisation, 3 to 20% by weight of at least one plasticizer, 0.05 to 5% by weight of at least one stabilizer on the basis of a copper complex, and at least one catalyst, said composition being free from alkaline metal halide and oligo- or polycarbodiimide, as sealing layer in a pipe containing oil or gas, the pipe being used in the exploitation of offshore oil or gas reservoirs.