Temptime Corporation

Activatable indicators with thickness compensation layers are disclosed herein. An example activatable indicator with a thickness compensation layer may be provided by a activatable environmental exposure indicator including a substrate, an indicator region operatively coupled to the substrate, a planarization layer, at least partially overlaying the substrate, a reservoir disposed on or in the substrate, at least partially surrounded by the planarization layer, in fluid communication with the indicator region, a plurality of microcapsules contained in the reservoir, each microcapsule of the plurality of microcapsules containing a payload microencapsulated in a frangible shell, a depressible cover aligned with and covering the reservoir.

Activatable thermal indicators with thermally expansive materials are disclosed herein. An example is provided by an activatable indicator including a plurality of microcapsules, each of the plurality of microcapsules further including a frangible shell, a volatile material contained in the frangible shell, configured to transition to a gas when heated above a predetermined activation temperature, wherein responsive to a first activation action including an application of heat configured heat above the predetermined activation temperature, the volatile material causes the frangible shell to weaken or rupture, and a payload contained in the frangible shell, the payload containing a liquefiable material configured to liquefy responsive to a predetermined environmental exposure, the payload configured to be released from the frangible shell when the frangible shell is ruptured.

Devices and Methods for Verification of RFID Activation Using Variable Capacitance Structures are disclosed herein. An example includes a radiofrequency (RF) tag, including an integrated circuit, an electrical circuit, connected to the integrated circuit, a variable capacitance structure, forming a portion of the electrical circuit, an activation indicator component included in the electrical circuit, an activatable environmental exposure indicator, the activatable environmental exposure indicator configured to become environmentally sensitive, such that when the RF tag is exposed to a predetermined environmental exposure subsequent to an activation action, the activatable environmental exposure indicator transitions from the unexposed state to the exposed state, the activatable exposure indicator configured to not transition from the unexposed state to the exposed state prior to the activation action.

Devices and methods for Verification of RFID Activation Using Tamper Evident Loops are disclosed herein. An example is provided by an RF tag, including an antenna, an integrated circuit, an electrical circuit, electrically connected to the integrated circuit, an activation branch, included in the electrical circuit, an activation indicator component, coupled to the activation branch, having a component conductive state and component nonconductive state, an indicator branch, defining a parallel circuit with the activation branch, included in the electrical circuit, and an activatable environmental exposure indicator, coupled to the indicator branch, having an indicator conductive state and an indicator nonconductive state.

Formulations to support activatable visual indicator platforms is disclosed herein. An example formulation to support activatable visual indicator platforms includes an activatable temperature exposure indicator having a response temperature, including a substrate, a wick physically coupled to or contained in the substrate, an indicator region, on or adjacent to a first end of the wick, and a bonding material containing a plurality of microcapsules disposed on or adjacent to a second end of the wick, opposite the first end.

RFID platforms with environmentally sensitive read ranges are disclosed herein. An example RFID tag includes an integrated circuit, an environmental indicator material that changes between a conductive state and a nonconductive state responsive to a predetermined environmental exposure, and an antenna, having a first antenna portion and a second antenna portion. The first antenna portion is electrically connected in a closed circuit with the integrated circuit, and wherein the second antenna portion is electrically connected in the closed circuit with the first antenna portion and with the integrated circuit when the environmental indicator material is in the conductive state and in an open circuit when the environmental indicator material is in the nonconductive state.

A temperature-activatable temperature indicator that includes a substrate and an indicator material supported by the substrate. The indicator material includes a mixture of a side-chain crystalline polymer and conductive particles and provides an electrical indication of exposure to increased temperature.

An excess heat exposure indicator and methods for making the same are disclosed. The excess heat exposure indicator includes a print media substrate comprising an indicator region, a data region, at least one first thermochromic composition is provided on the substrate within the indicator region of the substrate, a second thermochromic composition is provided on the substrate within the data region, the second thermochromic composition configured to change color state from a third color state to a fourth color state when heated above a second temperature threshold, the indicator region is configured to be selectively treated with heat above the first temperature threshold to place a first portion of the indicator region in the second color state, different than the first color state, forming a visible indicia, the visible indicia configured to change appearance when the indicator region is subsequently exposed to a temperature above the first temperature threshold.

A customizable temperature exposure indicator and methods for making the same are disclosed. The temperature exposure indicator includes a substrate, a printing region of the substrate forming a heat sensitive media that is configured to darken when it is heated by a thermal printhead, the darkening being permanent with respect to subsequent cooling of the media; at least one memory thermochromic composition provided on an indicator region of the substrate, the thermochromic composition is configured to have high temperature color state when it is heated above a high temperature threshold, and to remain in the high temperature color state until it is cooled below a low temperature threshold, the thermochromic composition is configured to have a low temperature color state when it is cooled below the low temperature threshold and to maintain the low temperature threshold until it is heated above the high temperature threshold.

Printer activatable environmental exposure indicators utilizing chemical encapsulation are disclosed herein. An example activatable environmental exposure indicator includes a substrate, an environmental indicator material configured to respond to a predetermined environmental stimulus, a plurality of microcapsules on or embedded in the substrate, and a bar code layer containing a bar code symbol and a viewing area. The microcapsules contain the environmental indicator material and are configured to respond to at least one of an activation temperature and an activation pressure by allowing the environmental indicator material to be released from the microcapsules. The environmental indicator material, after being released from the microcapsules, is configured to respond to exposure to the predetermined environmental stimulus by causing a detectable response.