Polyphenyl Sulfide Odor Masking with Intermediary Agents
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Solution Overview
Problem
Poly(phenol sulphides used in industry often have unpleasant, nauseating odors due to impurities, which can deter manufacturers and users, despite their effectiveness and good properties, as existing methods fail to adequately mask or eliminate these odors without altering the compounds' properties.
Innovation Solution
A composition comprising at least 50% poly(phenol sulfides combined with a small quantity of odor masking agents, such as alcohols, esters, aldehydes, ketones, and ethers, effectively masks the unpleasant odors of poly(phenol sulphides without altering their properties, making them more pleasant to handle and use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If poly(phenol sulfides) are used as industrial additives, then their effectiveness and functional properties are improved, but unpleasant nauseating odors are generated due to impurities
Solution Approach 1:
A masking agent is introduced as an intermediary substance that interacts with the unpleasant odorous compounds in poly(phenol sulfides). The masking agent forms a complex or adduct with the odorous impurities (such as chlorophenols, thiophenes, or mercaptans), thereby neutralizing their volatile odor-causing properties while leaving the functional poly(phenol sulfide) molecules intact and active.
Solution Approach 2:
The chemical parameters of the odorous impurities are changed by introducing a masking agent that modifies their molecular structure or volatility. This transformation reduces the vapor pressure or changes the odor profile of the impurities without affecting the core functional properties of the poly(phenol sulfide) compound.
2Object-generated harmful factors
If purification techniques are applied to remove impurities, then odor-causing substances are reduced, but manufacturing complexity and cost increase
Solution Approach 1:
Instead of applying complex purification techniques after synthesis, a masking agent is added directly to the crude reaction mixture before final product formulation. This preliminary action masks the odors of all impurities simultaneously without requiring multiple purification steps, thereby simplifying the manufacturing process while effectively reducing unpleasant odors.
Solution Approach 2:
The problematic odor-causing impurities are selectively targeted and bound by the masking agent, effectively extracting or sequestering only the odorous components from the mixture while leaving the main poly(phenol sulfide) product unaffected and ready for use.
3Ease of operation
If manufacturers avoid poly(phenol sulfides) due to odors, then user comfort is improved, but effectiveness and performance are reduced
Solution Approach 1:
The masking agent serves as a mediator that allows the continued use of effective poly(phenol sulfide) compounds by neutralizing their unpleasant odors. This enables manufacturers to maintain product performance while improving user comfort and acceptance.
4Object-generated harmful factors
If small quantities of odor masking agents are added, then odors are masked without altering poly(phenol sulfides) properties, but the composition becomes a mixture requiring precise formulation
Solution Approach 1:
The formulation parameters are optimized to determine the minimal effective concentration of masking agent required to neutralize odors. By establishing precise dosage ranges, the patent balances odor masking effectiveness with minimal impact on the physical and chemical properties of the poly(phenol sulfide) base compound.
Data Source
AI summary
The present invention concerns a composition comprising at least 50% by weight of at least one poly(phenyl sulfide) and from a few ppm to 2% by weight relative to the total volume of the composition of at least one odour-masking agent comprising at least one compound chosen from alcohols, esters, aldehydes and ketones. The invention also concerns the use of an odour-masking agent for masking the odour of a poly(phenyl sulfide), in addition to the products obtained by using the poly(phenyl sulfide) composition having a masked odour.