[EN] MARKABLE POLYMER COMPOSITION AND MARKING PROCESS<br/>[FR] COMPOSITION POLYMERE POUVANT ETRE MARQUEE ET PROCEDE DE MARQUAGE
申请人:DSM NV
公开号:WO2002006058A1
公开(公告)日:2002-01-24
The invention relates to a polymer composition that can be marked in one or more colours and that contains a polymer matrix and at least one prechromic compound which can be converted into at least two differently coloured conjugated compounds, each with a different increased conjugation length, by supplying energy. The invention also relates to an object entirely or partly made of said polymer composition, to a process for marking such an object in one or more colours and to a marked object thus obtained.