Polyolefin COC Dispensing Nozzle Radiation Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dispensing systems for pressurized products, particularly in cosmetics and pharmaceuticals, face issues with mechanical deformation, contamination, and sterilization due to the use of polyacetal materials, which pose toxicological risks and compromise product preservation.
Innovation Solution
A dispensing system utilizing a polyolefin material filled with cyclic olefin copolymers (COC) for the rod and nozzle, ensuring mechanical strength, low porosity, and resistance to radiation-induced degradation, while allowing for effective sterilization and reduced toxicological risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If POM material is used for the rod and nozzle, then mechanical strength and rigidity are improved, but toxicological safety deteriorates due to formaldehyde release
Solution Approach 1:
The patent changes the material parameters by transitioning from POM to polyolefin composite materials, specifically incorporating COC (cyclic olefin copolymer) to achieve the desired balance between mechanical properties and toxicological safety. This parameter change eliminates formaldehyde release while maintaining structural integrity.
Solution Approach 2:
The patent employs composite materials by combining polyolefin with COC (cyclic olefin copolymer) to create a new material system. This composite approach allows the rod and nozzle to achieve both the mechanical strength required for high-stress applications and the toxicological safety needed for cosmetic and pharmaceutical products.
2Strength
If POM material is used for the rod and nozzle, then mechanical rigidity is improved, but product preservation deteriorates due to high porosity allowing air diffusion and oxidation
Solution Approach 1:
The patent changes the material parameters by selecting polyolefin composite materials with specifically controlled porosity characteristics. The COC (cyclic olefin copolymer) component provides low porosity that prevents air diffusion, thereby protecting the product from oxidation and contamination while maintaining adequate mechanical rigidity.
Solution Approach 2:
The patent uses composite materials combining polyolefin and COC to achieve a synergistic effect where the COC component provides the low porosity necessary for product preservation, while the polyolefin matrix maintains the structural rigidity required for high-stress mechanical applications.
3Strength
If POM material is used for the rod and nozzle, then mechanical strength is improved, but sterilization effectiveness deteriorates due to radiation-induced degradation
Solution Approach 1:
The patent changes the material parameters by transitioning from POM to polyolefin composite materials containing COC (cyclic olefin copolymer). This material substitution fundamentally alters the response to radiation sterilization, allowing the material to withstand gamma or beta radiation without mechanical degradation, thereby enabling effective sterilization while maintaining structural integrity.
Solution Approach 2:
The patent employs composite materials where the COC (cyclic olefin copolymer) component provides radiation resistance, allowing the material to withstand sterilization processes. This composite structure enables the rod and nozzle to be effectively sterilized by radiation without suffering the mechanical weakening that occurs with POM materials.
4Stability of the object's composition
If POM material is used for the rod and nozzle, then dimensional stability is improved, but contamination resistance deteriorates due to porosity allowing bacterial and fungal contamination
Solution Approach 1:
The patent changes the material parameters by selecting polyolefin composite materials with controlled porosity. The COC (cyclic olefin copolymer) component provides low porosity that prevents air and moisture diffusion, thereby preventing bacterial and fungal contamination while maintaining the dimensional stability required for precise dispensing operations.
Solution Approach 2:
The patent uses composite materials combining polyolefin and COC where the COC component provides the low porosity necessary for contamination resistance. This composite structure maintains dimensional stability for precise dispensing while creating a barrier against bacterial and fungal contamination through the low porosity characteristic.
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 system effectively preserves the product by preventing contamination and oxidation, maintaining mechanical integrity, and enabling efficient sterilization, making it suitable for products with limited or no preservatives.
Implementation Method 1
the POM has a porosity which proves to be too high to be able to contribute to the good preservation of the product before its distribution. Indeed, the air can diffuse through the POM in sufficient quantity
Implementation Method 2
the fastest and most effective way to sterilize a system for dispensing a product is to expose it to gamma or beta radiation
Data Source
AI summary
The invention relates to a pressurized product distribution system comprising a body (1) equipped with means for supplying an internal chamber (2) of said body with product from a source, said system also comprising a rod (6) on which is mounted a push button (7) for reversibly actuated in translation within said body, said rod being equipped with a valve (8) which is disposed in the internal chamber (2) having a stable closed state of a distribution path formed through the rod (6) and the push button (7) to a distribution orifice (9), and a constrained state by actuation of the rod (6) in which said distribution path is in communication with the internal chamber (2), said push button (7) having a housing (13) in which is mounted a nozzle (14) provided with the distribution orifice (9),said nozzle (14) being made from a material comprising at least one polyolefin which is loaded with at least one cyclic olefin copolymer (COC).