发明名称 |
Chemical indicator composition, indicators and methods |
摘要 |
<p>A chemical indicator composition comprising a bismuth (III) compound selected from the group consisting of bismuth (III) oxide and a bismuth (III) compound comprising 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; a chemical indicator composition comprising a bismuth (III) compound; elemental sulfur; a compound which makes the composition alkaline when exposed to water vapor at an elevated temperature; and at least one acid other than any acid present in the bismuth (III) compound; a chemical indicator comprising a substrate and the composition coated on at least a portion of a major surface of the substrate; methods of making the chemical indicator; and methods of using the chemical indicator are disclosed.</p> |
申请公布号 |
EP2506006(A1) |
申请公布日期 |
2012.10.03 |
申请号 |
EP20120173822 |
申请日期 |
2009.12.30 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
READ, DAVID M.;LANDGREBE, KEVIN D.;KIRCKOF, STEVEN S. |
分类号 |
G01N31/22;A61L2/28;C09B29/00;C09B29/08;C09B29/12;C09B29/26;C09B67/00;C09D11/00;G01N21/78 |
主分类号 |
G01N31/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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