公开(公告)号：US09951370B2

公开(公告)日：2018-04-24

申请号：US15508295

申请日：2015-10-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Liwei Yu ,  Kai Qiu

IPC: G01N31/22 ,  G01N21/78 ,  A61L2/07 ,  A61L2/28 ,  C09D11/50 ,  C12Q1/22 ,  G01N21/81

CPC classification number: C12Q1/22 ,  A61L2/07 ,  A61L2/28 ,  G01N21/78 ,  G01N21/81 ,  G01N31/226

Abstract: A chemical indicating composition. The composition can include an aqueous resin in a form of polymer emulsion or polymer dispersion, the aqueous resin comprising a first aqueous resin composition and a second aqueous resin composition; a film-forming agent; a color changing composition; and water as a solvent. The chemical indicating composition of this disclosure can be used in an autoclave process indicator.