Invention Grant
- Patent Title: Time temperature indicator
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Application No.: US16164879Application Date: 2018-10-19
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Publication No.: US11280772B2Publication Date: 2022-03-22
- Inventor: Dietrich Haarer , Tai Gueta-Neyroud , Husein Salman
- Applicant: FRESHPOINT QUALITY ASSURANCE LTD.
- Applicant Address: IL Haifa
- Assignee: FRESHPOINT QUALITY ASSURANCE LTD.
- Current Assignee: FRESHPOINT QUALITY ASSURANCE LTD.
- Current Assignee Address: IL Haifa
- Agency: Browdy and Neimark, PLLC
- Priority: EP07100418 20070111,EP07114081 20070809
- Main IPC: G01N31/00
- IPC: G01N31/00 ; G01N31/22 ; G01K3/04 ; G01K11/12 ; G01N21/78 ; G01N21/77

Abstract:
The present invention is generally in the field of measuring and indicating techniques and relates to a time-temperature indicator and methods of manufacturing and use thereof. More specifically, the time-temperature indicator comprises a time temperature indicator comprising at least one metal layer or metal containing layer and in direct contact to the metal layer or to the metal containing layer at least one doped polymer layer, wherein the dopant is an acid, a base or a salt or a photolatent acid or a photolatent base which dopant is added to the polymer, and/or at least one polymer layer wherein a polymer is functionalized with acidic or latent acidic or basic or latent basic groups; or a time temperature indicator comprising at least one polymer layer containing metal particles and a photolatent acid or a photolatent base, or at least one polymer layer containing metal particles wherein the polymer is functionalized with latent acidic or latent basic groups.
Public/Granted literature
- US20190056365A1 TIME TEMPERATURE INDICATOR Public/Granted day:2019-02-21
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