公开(公告)号：US11767428B2

公开(公告)日：2023-09-26

申请号：US16651572

申请日：2018-10-04

Applicant: Arkema France

Inventor： Jean-Charles Durand ,  Ornella Zovi ,  Benoît Brule

IPC: C08L77/06 ,  B29C64/153 ,  B33Y70/10 ,  B29C45/00 ,  B29K77/00 ,  B29K309/08 ,  C08K7/14

CPC classification number: C08L77/06 ,  B29C64/153 ,  B33Y70/10 ,  B29C45/0001 ,  B29K2077/00 ,  B29K2309/08 ,  C08K7/14 ,  C08K2201/003 ,  C08K2201/004

Abstract: The present invention relates to a reinforced thermoplastic powder composition, comprising:

at least one polyamide powder with a d50 of less than 100 μm,
from 5% to 70% by weight of at least one glass fiber:

with a l50 within the range from 50 to 200 μm,
with an lmax of less than 450 μm,
with a d50 within the range from 4 to 40 μm,
with a form factor F: l50/d50 of between 5 and 15, and


from 0.05% to 5% of a pulverulent flow agent with a d50 of less than 20 μm; with regard to the total weight of the composition.


The present invention relates in particular to the use of said composition in 3D printing processes for manufacturing reinforced three-dimensional objects.

公开(公告)号：US11667797B2

公开(公告)日：2023-06-06

申请号：US16344268

申请日：2017-10-24

Applicant: Arkema France

Inventor： Ornella Zovi ,  Jean-Charles Durand ,  Jean-Yves Loze ,  Emilie-A Delattre

IPC: C09D5/03 ,  C09D7/65 ,  C09D177/00 ,  C09D7/63 ,  C08K3/26

CPC classification number: C09D5/033 ,  C09D7/63 ,  C09D7/65 ,  C09D177/00 ,  C08K2003/265 ,  C09D177/00 ,  C08L23/06 ,  C08L23/08

Abstract: The present invention relates to a self-adhesive powder composition comprising:



at least one polyamide;
at least one ethylene vinyl alcohol copolymer;
at least one hydrophobic agent; and
optionally at least one filler.