公开(公告)号：DE2237956A1

公开(公告)日：1974-02-14

申请号：DE2237956

申请日：1972-08-02

Applicant: BASF AG

Inventor： STANGE KARL DR ,  JENNE HELMUT DR ,  BRONSTERT KLAUS DR ,  HORACEK KLAUS DR ,  KOENIG ULRICH DR

IPC: B32B27/00 ,  C08F283/00 ,  C08G41/00

Abstract: A graft copolymer comprises 90-30 wt.% of a thermoplastic, predominantly linear polyurethane (e.g. derived from polycaprolactone and 4,4-diphenylmethanediisocyanate) as back-bone polymer, and 10-70 wt.% of polymers of monoethylenically unsatd, vinyl cpds (e.g styrene), chemically bonded, as side chains, to the backbone polymer. Prepn may be by graft copolymsn. with the aid of radical catalysts or high-energy radiation. It is used as highly compatible a adhesion adjuvants in the adhesive bonding of polymeric materials as components in polymer blends to improve impact-resistance; and in mfr. of laminates.