The present invention relates to new color compositions which are especially suitable to be used in oxygen indicators. The compositions comprise iron(II), an agent containing pyrogallol entities and an organic acid.
申请公布号
US6399387(B1)
申请公布日期
2002.06.04
申请号
US19990236281
申请日期
1999.01.22
申请人
PHARMACIA AB
发明人
STENHOLM AAKE;KARLSSON LARS;LOEFGREN ANDERS;NYSTROEM BO;SKOLLING OTTO
