Liquid Stabilizer Mixture for Polymers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing stabilizers for inanimate organic materials, particularly plastics, often face challenges in handling, miscibility, and concentration when trying to protect against light, oxygen, and heat, as they are typically solid powders that are difficult to incorporate homogeneously and require additional steps for dispersion or dissolution, leading to lower effective concentrations and transportation issues.
Innovation Solution
Development of liquid mixtures comprising one or more liquid UV absorbers and branched polymers with stabilizing groups, which are easy to handle, incorporate, and maintain high concentrations, providing efficient stabilization against light, oxygen, and heat without volatility and migration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If solid powder stabilizers are used, then high stabilizer concentration can be achieved, but handling and incorporation become difficult requiring additional dispersion steps
Solution Approach 1:
The patent changes the physical state parameter of the stabilizer from solid powder to liquid form. This parameter change resolves the contradiction by providing ease of handling and incorporation like liquids while maintaining high effective concentration through the specific liquid composition and molecular structure design.
Solution Approach 2:
The patent creates a composite liquid stabilizer system combining multiple components (UV absorbers, HALS compounds, phenolic antioxidants, and polymer carriers) into a single liquid mixture. This composite approach allows the stabilizer to maintain high effectiveness while being easily incorporated as a liquid, eliminating the need for separate dispersion steps.
2Quantity of substance
If solid powder stabilizers are used, then high stabilizer concentration can be achieved, but homogeneous incorporation requires additional dispersion or dissolution steps
Solution Approach 1:
Changing the physical state from solid to liquid eliminates the need for dispersion or dissolution steps. The liquid stabilizer mixes homogeneously with the polymer matrix through simple blending, achieving uniform distribution without additional manufacturing complexity while maintaining high effective concentration.
Solution Approach 2:
The patent uses liquid polymer carriers and solvents as intermediaries to facilitate homogeneous incorporation. These liquid media allow the stabilizer components to distribute uniformly throughout the polymer matrix during processing, ensuring consistent protection without requiring complex dispersion equipment or procedures.
3Ease of operation
If liquid stabilizers are used, then ease of handling and incorporation improves, but stabilizer concentration tends to be lower
Solution Approach 1:
The patent formulates a composite liquid system where high-boiling-point polymer carriers and concentrated stabilizer components work together. This composite structure allows the liquid stabilizer to maintain high effective concentration (comparing favorably with solid powder formulations) while preserving the handling and incorporation advantages of liquid form.
Solution Approach 2:
The patent carefully selects and adjusts parameters of the liquid components including molecular weight, boiling point, and chemical structure of the polymer carriers and UV absorbers. These parameter optimizations ensure that the liquid stabilizer achieves both ease of handling and high effective concentration, resolving the apparent trade-off between these two properties.
4Ease of operation
If liquid stabilizers are used, then incorporation ease improves, but volatility and migration become concerns
Solution Approach 1:
The patent selects liquid components with specifically optimized parameters including high boiling points and appropriate molecular weights. These parameter choices ensure that the liquid stabilizer incorporates easily into the polymer matrix while maintaining sufficient thermal and chemical stability to prevent volatility and migration under normal use conditions, thus resolving the contradiction between ease of incorporation and long-term 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 liquid mixtures effectively stabilize materials against degradation from light, oxygen, and heat, offering improved handling and incorporation ease while maintaining high stabilizer concentrations and reducing transportation challenges.
Implementation Method 1
one or more liquid UV absorbers
Implementation Method 2
branched polymers comprising stabilizing groups
Data Source
AI summary
A mixture comprising(a) one or more liquid UV absorbers, with the proviso that Tinuvin 384-2 as a liquid UV absorber is excluded,(b) one or more branched polymers comprising stabilizing groups,(c) optionally one or more further additions.Use of such a mixture for stabilizing inanimate organic materials against the effect of light, oxygen and/or heat. Inanimate organic materials comprising at least one such mixture, and also articles produced from such inanimate organic materials. Methods of stabilizing inanimate organic materials against the effect of light, oxygen and/or heat by adding to said inanimate organic materials at least one such mixture in an effective amount.