Mridula Nair;Kevin D. Lofftus;Mary Christine Brick
发明人:
Mridula Nair,Kevin D. Lofftus,Mary Christine Brick
申请号：
US13927139
公开号：
US09291570B2
申请日:
2013.06.26
申请国别(地区):
US
年份:
2016
代理人:
摘要：
An indicator composition can be used to detect various environmental conditions stimuli such as in sterilization or storage processes. This indicator composition has a) a first polymeric particle comprising a solid continuous polymeric phase and a first reactant, the first polymeric particle having a mode particle size equal to or less than 50 μm； and b) a second reactant outside of the first polymeric particle, which second reactant is capable of reacting with the first reactant when exposed to a chosen environmental condition stimulus. The indicator composition can be used by exposing it to the environmental condition stimulus for a sufficient time to cause a detectable change in the indicator composition such as a detectable color change.
