Title:
CHEMICAL INDICATOR COMPOSITION, INDICATORS AND METHODS
Document Type and Number:
Japanese Patent JP2015211846
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide chemical indicators which change colors when exposed to target sterilization conditions in a steam sterilization process and methods of producing the same.SOLUTION: A chemical indicator 220 includes a substrate 180 and a composition applied onto at least a portion of a major surface of the substrate 180. The chemical indicator 220 contains: a bismuth (III) compound selected from among bismuth (III) oxide and a bismuth (III) compound having at least one organic group which includes 2 to 20 carbon atoms; elemental sulfur; and a compound which makes the composition alkaline when exposed to water vapor at an elevated temperature.
Inventors:
DAVID M READ
KEVIN D LANDGREBE
STEVEN S KIRCKOF
KEVIN D LANDGREBE
STEVEN S KIRCKOF
Application Number:
JP2015107508A
Publication Date:
November 26, 2015
Filing Date:
May 27, 2015
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO
International Classes:
A61L2/28; A61L2/07; C09K3/00
Domestic Patent References:
| JP2002323451A | 2002-11-08 | |||
| JP2005181072A | 2005-07-07 | |||
| JPH1180703A | 1999-03-26 | |||
| JPH04364174A | 1992-12-16 | |||
| JP2004317433A | 2004-11-11 | |||
| JP2004222957A | 2004-08-12 | |||
| JP2002323451A | 2002-11-08 | |||
| JP2005181072A | 2005-07-07 | |||
| JPH1180703A | 1999-03-26 |
Foreign References:
| US5916816A | 1999-06-29 | |||
| US3360338A | 1967-12-26 | |||
| US5916816A | 1999-06-29 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Masatoshi Takahashi
Naori Kota
Satoshi Deno
Takashi Ishida
Tetsuji Koga
Masatoshi Takahashi
Naori Kota
Satoshi Deno
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