Deproteinized Rubber Sealant Temperature Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sealants for rubber articles, particularly pneumatic vehicle tires, face limitations in temperature stability and allergenic potential due to the use of non-deproteinized natural rubber latex, and require complex and costly production processes.
Innovation Solution
A sealant composition comprising 30-90% natural rubber latex dispersion, 0.1-10% emulsifying and dispersing agents, 0.0001-10% protease, 5-40% aqueous adhesive resin, 1-50% antifreeze, and 0.01-12% degradation products from a deproteinization reaction, which simplifies production and enhances temperature stability and reduces allergenicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-deproteinized natural rubber latex is used in sealant, then the sealant has good sealing effect, but the temperature stability at elevated temperatures is poor and allergenic potential is increased
Solution Approach 1:
The patent extracts and removes the problematic protein components from natural rubber latex through deproteinization process, while retaining the beneficial rubber latex matrix. This selective removal eliminates the source of poor temperature stability and allergenicity while preserving the sealing functionality.
Solution Approach 2:
The patent changes the chemical composition parameters of natural rubber latex by controlling the deproteinization process to achieve optimal protein removal (5-20% protein content). This parameter adjustment transforms the material properties to simultaneously achieve good temperature stability and maintained sealing effect.
2Stability of the object's composition
If deproteinized natural rubber latex is used in sealant, then temperature stability and allergenicity are improved, but the production process becomes complex and costly
Solution Approach 1:
The patent performs deproteinization as a preliminary action during the sealant manufacturing process itself, rather than requiring separate complex deproteinization steps before production. This integration of deproteinization into the manufacturing workflow simplifies the overall process while achieving the desired temperature stability.
Solution Approach 2:
The patent merges the deproteinization step with the existing sealant production process, combining multiple functions into a single integrated workflow. This consolidation eliminates the need for separate complex deproteinization facilities and reduces overall production complexity.
3Object-affected harmful factors
If deproteinized natural rubber latex is used in sealant, then allergenic potential is reduced, but proteins cannot be completely removed
Solution Approach 1:
The patent applies partial deproteinization (removing 5-20% of proteins) rather than attempting complete protein removal. This partial action is sufficient to reduce allergenic potential to acceptable levels while avoiding the impracticality and cost of complete removal, achieving the desired safety level with feasible means.
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 sealant exhibits improved temperature stability, reduced allergenicity, and cost-effective production, with enhanced sealing performance and stability at elevated temperatures.
Implementation Method 1
0.0001 - 10% by weight of at least one protease; 0.01 - 12% by weight of degradation products of a deproteinization reaction
Implementation Method 2
deproteinization reaction
Implementation Method 3
0.1 - 10% by weight of at least one ionic and / or non-ionic emulsifying and / or dispersing agent
Implementation Method 4
the sealant being distributed in and /or penetrates the damaged area
Implementation Method 5
distributed on the inner wall by turning after it has been inserted into the rubber article
Data Source
AI summary
The invention relates to a sealant, in particular for rubber articles, preferably for motor vehicle tires, characterized by the following composition: 30 - 90 wt-% of at least one natural rubber latex dispersion; 0.1 - 10 wt-% of at least one ionic and/or non-ionic emulsifier and/or dispersing agent; 0.0001 - 10 wt-% of at least one protease; 5 - 40 wt-% of at least one aqueous adhesive resin dispersion; 1 - 50 wt-% of at least one antifreeze agent; 0.01 - 12 wt-% of decomposition products of a deproteinizing reaction; 0 - 30 wt-% of additional additives.