发明名称 |
TTI-INDIKATOR MIT BALANCIERTEN PHOTOCHEMISCHEN PROZESSEN |
摘要 |
<p>The invention relates to a time temperature indicator comprising a) at least one photo-chromic colorant introduced into and/or atop a matrix substrate and charged by exposure to UV light; b) at least a transparent colorless or a transparent colored light absorbing protecting layer adhered to the underlying layer a) which contains the photo-chromic colorant; characterized in that the light absorbing protecting layer comprises 1-50 wt % of an UV light absorber or an UV light absorber mixture and 0.1-10 wt % of an optical brightener wherein the weight ratio of the UV light absorber and optical brightener is 0.1-10.</p> |
申请公布号 |
DE602007010833(D1) |
申请公布日期 |
2011.01.05 |
申请号 |
DE20076010833T |
申请日期 |
2007.12.17 |
申请人 |
BASF SE |
发明人 |
FUCHS, ANDRE;CARRIGAN, ANNE VERONICA |
分类号 |
C09K9/02;G01K3/00;G01N31/22 |
主分类号 |
C09K9/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|