| abstract |
(57) [Summary] [Structure] a) At least one heat-stable polymer selected from the group consisting of polypropylene and polymethylalkene having 3 to 7 carbon atoms, b) immiscible with them. An embossable sheet having at least one stress-whitening layer containing a blend of at least one other polymeric material and c) an effective amount of an anti-aging agent. [Effect] An embossable sheet having stable whitening under pressure at 136 ° C for at least 7 days was provided. |