| abstract |
The present invention relates to a novel thermoplastic stiffening material for the manufacture of shoes and an environmentally friendly process for its preparation in the form of a hot melt adhesive / filler compound, characterized in that it consists of one or more hot melt adhesive (s), one or more Fillers in amounts of 50 to 15 wt .-%, which do not dissolve in the hot melt adhesive, and the hot melt adhesive / filler compound meets the following parameters simultaneously: 1. MVR value between 2 and 6, preferably 3 to 5 cm 3/10 min 2. Surface tack / tack, measured according to DIN EN 14610, at 65 ° C of at least 10 N / 2 cm, preferably 15 N / 2 cm, in particular 20 N / 2 cm 3. Adhesion value / peel strength against upper materials and lining of at least 30 N / 5 cm, measured according to DIN 53357 4. elongation of not more than 25%, preferably less than 20%, measured at temperatures of 90 ° C. |