UV-Blocking Plastic Container for Visible Cyanoacrylate Storage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Curable cyanoacrylate compositions are not storage stable when exposed to ambient light and are sensitive to materials that can cause premature cure, limiting the compatibility and material options for their containers.
Innovation Solution
A plastics container that is transmissive to visible light, non-transmissive to UV light, and compatible with cyanoacrylate compositions, using a polymer material with a dispersed UV blocking agent, such as benzotriazole, to maintain stability and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If transparent containers are used for curable cyanoacrylate compositions, then visibility of the composition is improved, but storage stability deteriorates due to UV light exposure causing premature cure
Solution Approach 1:
A UV-blocking additive is introduced as an intermediary substance within the transparent container material. This additive selectively absorbs UV light while allowing visible light to pass through, thereby protecting the cyanoacrylate composition from premature curing while maintaining visibility. The additive acts as a mediator between the transparent container and the light environment.
Solution Approach 2:
The optical parameters of the container material are modified by incorporating UV-blocking additives that change the material's transmission characteristics. The container remains transparent to visible light but becomes opaque to UV wavelengths, effectively filtering harmful radiation while preserving visibility for the user.
2Reliability
If opaque container materials are used to block UV light, then storage stability is improved, but visibility of the composition deteriorates
Solution Approach 1:
The container material exhibits different optical properties at different regions of the electromagnetic spectrum. It is designed to be transparent in the visible range while being opaque in the UV range, achieving selective transparency. This local quality differentiation allows simultaneous visibility and UV protection.
3Reliability
If compatible plastics materials are selected for container walls, then storage stability is improved, but material options and design flexibility deteriorate due to limited compatibility
Solution Approach 1:
The container is constructed as a composite system combining a base plastics material with UV-blocking additives. This composite approach allows the use of various base materials (polyethylene, polypropylene, polystyrene, etc.) while the UV-blocking component provides universal protection against premature curing, thereby expanding material options without compromising stability.
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 container maintains storage stability and prevents premature cure of cyanoacrylate compositions under ambient conditions while allowing visibility, comparable to opaque containers in performance.
Implementation Method 1
a UV blocking agent dispersed in the plastics material the UV blocking agent comprising at least one benzotriazole; the walls of the container being transmissive to visible light and non-transmissive to UV light
Data Source
AI summary
A container for curable cyanoacrylate composition comprising:a reservoir for holding curable cyanoacrylate composition, the reservoir having an outlet through which the curable cyanoacrylate composition can be dispensed;the reservoir being defined by walls of plastics material,the plastics material being formed by a polymer material that is transmissive to both visible light and UV light; anda UV blocking agent dispersed in the plastics material the UV blocking agent comprising at least one benzotriazole;the walls of the container being transmissive to visible light and non-transmissive to UV light. Curable cyanoacrylate compositions held within such a container are thus storage stable in ambient conditions and yet the curable cyanoacrylate compositions can be seen through the walls of the container. A pack comprising the container and a curable cyanoacrylate composition is also described.