公开(公告)号：US20190322805A1

公开(公告)日：2019-10-24

申请号：US16384972

申请日：2019-04-16

Applicant: INVISTA NORTH AMERICA S.A.R.L.

Inventor： Charles Richard LANGRICK ,  Deborah SARZOTTI

IPC: C08G69/26 ,  C08K5/3492 ,  C08K5/5313 ,  C08K5/521 ,  C08L77/06 ,  C08K3/22 ,  C08K3/38 ,  C08K13/02 ,  C08J5/04 ,  C08J3/22 ,  C08J3/20

Abstract: The present invention relates to flame-retardant polyamide compositions. In various aspects, the present invention provides a flame-retardant polyamide composition including a polyamide that is about 30 wt % to about 99 wt % of the composition. The polyamide has a relative viscosity (RV) of ≥20 to ≤33 as measured as an 8.4 wt % solution in 90% formic acid. The composition also includes one or more flame-retardant additives. Various aspects of the present invention provide compositions having enhanced flame-retardant properties as compared to corresponding compositions including the same or greater concentration of flame-retardant additive but using a polyamide that has an RV that is 33.