公开(公告)号：US20220073686A1

公开(公告)日：2022-03-10

申请号：US17312997

申请日：2019-12-11

Applicant: Arkema France

Inventor： Geoffroy CAMMAGE ,  Bertrand PERRIN

IPC: C08J3/14 ,  C08K5/05 ,  C08G65/08 ,  C08G65/20 ,  C08G69/14 ,  C08G69/26 ,  B29C64/153

Abstract: The invention relates to a copolymer powder containing polyamide blocks and polyether blocks having: an enthalpy of fusion of the polyamide blocks of greater than or equal to 70 J/g if the weight ratio of the polyamide blocks relative to the polyether blocks of the copolymer is greater than or equal to 4; an enthalpy of fusion of the polyamide blocks of greater than or equal to 50 J/g if the weight ratio of the polyamide blocks relative to the polyether blocks of the copolymer is greater than or equal to 1 and less than 4; or an enthalpy of fusion of the polyamide blocks of greater than or equal to 20 J/g if the weight ratio of the polyamide blocks relative to the polyether blocks of the copolymer is less than 1.