Thermosetting Polymer Seal for Tamper-Resistant Packaging

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing anti-counterfeit measures for high-value products, particularly fine wines, are inadequate as they allow for counterfeiting through refilling or thermal damage, as they do not provide robust authentication and thermal monitoring.

Innovation Solution

A packaging system featuring a thermosetting polymer seal on the closure, which includes means for detecting originality using Stokes or anti-Stokes pigments and diatoms visible to the naked eye, and thermal energy recording agents like microporous materials and microencapsulated colorants, ensuring the seal is non-destructively attached and provides authentication and thermal monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a seal made of thermosetting polymer is attached to the closure with authentication means, then the reliability of preventing counterfeiting is improved, but the device complexity increases

Engineering Contradiction:
Improveanti-counterfeit protectionVSAvoidseal structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple authentication functions (Stokes/anti-Stokes pigments, diatoms, thermal energy recording) into a single integrated seal structure made of thermosetting polymer. This merging approach maintains high anti-counterfeit reliability while reducing the number of separate components that would otherwise be needed.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The seal incorporates materials with specific physical parameters: Stokes/anti-Stokes pigments for optical detection, diatoms for visual authentication, and thermal recording agents for temperature monitoring. These parameter-based features enable reliable authentication without requiring complex mechanical or electronic systems.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If Stokes pigments or anti-Stokes pigments are used for detecting originality, then the measurement precision of authentication is improved, but the ease of operation deteriorates as specialized detection devices are required

Engineering Contradiction:
Improveauthentication accuracyVSAvoiddetection simplicity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent applies different authentication materials to different regions or aspects of the seal: Stokes/anti-Stokes pigments for optical detection, diatoms for visual inspection, and thermal recording agents for temperature monitoring. This allows various detection methods to be used depending on the available equipment and situation.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The seal incorporates Stokes/anti-Stokes pigments that exhibit specific optical properties under different light conditions, and thermal recording agents that change color in response to temperature exposure. These visual and optical changes provide authentication cues that can be detected with varying levels of equipment sophistication.

Inventive Principle:
Principle #32Color changes

3Ease of operation

If diatoms visible to the naked eye are incorporated into the seal, then the ease of operation for authentication is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvevisual authenticationVSAvoiddiatom distribution
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent incorporates diatoms uniformly throughout the thermosetting polymer seal matrix, ensuring consistent distribution and visual appearance. This homogeneous integration simplifies the authentication process for end users while managing manufacturing complexity through standardized incorporation procedures.

Inventive Principle:
Principle #33Homogeneity

4Ease of repair

If a seal made of thermosetting polymer is used that is non-destructive from the closure, then the ease of repair or replacement is improved, but the strength of bonding may be compromised

Engineering Contradiction:
Improveseal replacementVSAvoidseal-to-closure bonding
Core Design Contradiction:
Ease of repairVSStrength

Solution Approach 1:

The patent designs the seal as a separate, removable component that can be taken off the closure without damaging either the seal or the closure. The authentication features (Stokes/anti-Stokes pigments, diatoms, thermal recording) are embedded within the seal material itself, allowing the seal to be replaced while preserving the closure and authentication capabilities.

Inventive Principle:
Principle #2Taking out (Extraction)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution effectively prevents counterfeiting and detects thermal damage, ensuring the authenticity and quality of the packaged contents by using thermosetting polymers that bond securely and include visible and detectable markers for originality and thermal history.

Implementation Method 1

a seal made of thermosetting polymer being attached to and/or on the closure

Methodology Applied
Scientific EffectThermosetting polymer bonding: Chemical Bonding

Implementation Method 2

the means for detecting the originality of the seal comprises Stokes pigments or anti-Stokes pigments, which require a detection device for detection

Methodology Applied
Scientific EffectStokes/anti-Stokes pigment detection: Fluorescence

Implementation Method 3

contains diatoms visible to the naked eye

Methodology Applied
Scientific EffectLight scattering by diatoms: Scattering

Implementation Method 4

the seal further comprises means for recording the input of thermal energy and/or means for detecting whether a defined temperature has been exceeded

Methodology Applied
Scientific EffectThermal energy recording: Thermochromism

Data Source

PatentEP3197793B1Packaging with tamper resistance
Publication Date: 2021.02.24 POLYSECURE
  • EP3197793B1 patent drawingFigure 1

AI summary

The present invention relates to packaging (2) that is closed by a cap, wherein a seal (1) made of thermosetting polymer is attached to the cap, said seal (1) preferably being in contact with the packaging, wherein the seal is not removable from the cap and/or the packaging without destruction and the seal comprises means for identifying the originality of the packaging, means for registering input of thermal energy and/or means for detecting that a defined temperature has been exceeded.