基本信息:
- 专利标题： TIME-TEMPERATURE INTEGRATING INDICATOR DEVICE
- 专利标题（中）：时温集成指示器设备
- 申请号：PCT/US1996003281 申请日：1996-03-07
- 公开(公告)号：WO1996028714A1 公开(公告)日：1996-09-19
- 发明人： MINNESOTA MINING AND MANUFACTURING COMPANY
- 申请人： MINNESOTA MINING AND MANUFACTURING COMPANY , ARENS, Robert, P. , BIRKHOLZ, Russell, D. , JOHNSON, Dee, Lynn , LABUZA, Theodore, P. , LARSON, Curtis, L. , YARUSSO, David, J.
- 专利权人： MINNESOTA MINING AND MANUFACTURING COMPANY,ARENS, Robert, P.,BIRKHOLZ, Russell, D.,JOHNSON, Dee, Lynn,LABUZA, Theodore, P.,LARSON, Curtis, L.,YARUSSO, David, J.
- 当前专利权人： MINNESOTA MINING AND MANUFACTURING COMPANY,ARENS, Robert, P.,BIRKHOLZ, Russell, D.,JOHNSON, Dee, Lynn,LABUZA, Theodore, P.,LARSON, Curtis, L.,YARUSSO, David, J.
- 优先权： US8/402,133 19950310
- 主分类号： G01K03/04
- IPC分类号： G01K03/04
摘要：
A selectively activated time-temperature integrating device for providing a visually observable indication of cumulative thermal exposure, in which a viscoelastic material migrates into a diffusely light-reflective porous matrix at a rate which varies with temperature to progressively change the light transmissivity of the porous matrix and thereby provide the visually observable indication. The viscoelastic material can comprise a pressure sensitive adhesive. The visually observable indication can comprise latent indicia which initially are not visible and become visible, obscurable indicia which initially are visible and become obscured, or a combination of both. Various actuating means for selectively switching the indicator from an unactivated state to an activated state are described. Also disclosed are a method for providing a visually observable indication of cumulative thermal exposure and a method for providing a time and temperature integrating device for providing a visually observable indication of cumulative thermal exposure of an object.
摘要（中）：
一种选择性激活的时间 - 温度积分装置，用于提供累积热暴露的视觉上可观察的指示，其中粘弹性材料以随温度变化的速率迁移到漫反射多孔基质中，以逐渐改变多孔基质的光透射率 从而提供视觉可见的指示。 粘弹性材料可以包括压敏粘合剂。 视觉上可观察的指示可以包括最初不可见且变得可见的潜在标记，其最初是可见的并且变得模糊的可遮盖的标记，或两者的组合。 描述了用于将指示器从未激活状态切换到激活状态的各种致动装置。 还公开了一种用于提供可视可见的累积热暴露指示的方法，以及用于提供时间和温度积分装置的方法，用于提供物体的累积热暴露的视觉上可观察的指示。