公开(公告)号：BR0002904A

公开(公告)日：2001-01-30

申请号：BR0002904

申请日：2000-06-28

Applicant: DEGUSSA

Inventor： SCHMITZ GUIDO ,  OENBRINK GEORG ,  BOEER MICHAEL ,  HAEGER RARALD ,  RICHTER RALF

IPC: F16L11/04 ,  B32B27/00 ,  B32B27/34 ,  B32B27/36 ,  C08G69/02 ,  C08G69/48 ,  C08K3/00 ,  C08K5/00 ,  C08L21/00 ,  C08L67/00 ,  C08L77/00 ,  C08L77/02 ,  C08L77/06 ,  F16L11/11

Abstract: The composite includes a coupling layer comprising a graft copolymer from: (a) a polyamine with at least 4 nitrogen atoms and a number-average molecular weight (Mn) of at least 146; and (b) polyamide-forming monomers (lactams, omega -amino-acids and/or equimol. combinations of diamines and dicarboxylic acids). A thermoplastic multilayer composite comprises layers (I) and (II) of different thermoplastic moulding materials and an interlayer (III) of a coupling agent. At least 5 wt% of (III) consists of a graft copolymer derived from: (a) 0.5-25 wt% (based on the copolymer) of a polyamine with at least 4 nitrogen atoms and a Mn of at least 146; and (b) polyamide-forming monomers selected from lactams, omega -aminocarboxylic acids or equimolar combinations of diamines and dicarboxylic acids. An Independent claim is also included for moulding materials containing: (A) 5-60 parts by weight (pts. wt.) of a graft copolymer as above; (B) 10-85 pts. wt. of a polyamide; (C) 10-85 pts. wt. of a polyester; and (D) not more than 40 wt% (based on A + B + C) of an impact-modifying rubber and/or conventional auxiliary substances or additives.