公开(公告)号：DE3200072A1

公开(公告)日：1982-08-12

申请号：DE3200072

申请日：1982-01-05

Applicant: BASF AG

Inventor： AYDIN ORAL DR ,  PETERHANS JOSEF DR ,  BINDER KARL

IPC: D04H1/488 ,  D04H1/587 ,  D04H1/64 ,  D04H1/46

Abstract: This invention relates to a process for producing thermoformable (deep drawable), bonded needle-felts for interior fittings of automobiles having, in the thermoformed (deep drawn) state, a reduced tendency to shrink in the heat, wherein the needled felt is treated with a copolymer dispersion prepared by two-step emulsion copolymerisation of olefinically unsaturated monomers, the latex particles consisting of two phases whose glass transition temperatures differ by at least 40 DEG C, and the treated felt is dried at elevated temperature.