J. Christopher Thomas;Neal A. Rakow;Duane D. Fansler
发明人:
J. Christopher Thomas,Neal A. Rakow,Duane D. Fansler
申请号：
US13816510
公开号：
US09134251B2
申请日:
2011.09.15
申请国别(地区):
US
年份:
2015
代理人:
摘要：
Chemical indicators for acidic or basic gases include an inert, porous substrate, an indicator dye or mixture of dyes contained within at least some of the pores of the inert, porous substrate, and an inert adhesive layer attached to the inert, porous substrate. The porous substrate may be a microporous substrate.
