Ice warner, especially for placing on a road or roadside guiding sign has a mark, applied to a contrasting background, which contains a thermochromatic material (I) that changes its optical properties at temperatures near freezing point.
申请公布号
EP0955413(A2)
申请公布日期
1999.11.10
申请号
EP19990108863
申请日期
1999.05.04
申请人
U.S.P. TRANSFERS INDUSTRIELLE FARBUEBERTRAGUNG GESELLSCHAFT MBH
发明人
BREHM, ROBERT, DR.;LENGFELDNER, ERHARD;PUGH, ROBERT