Sterically Hindered Amine Stabilizer for Organic Material Degradation
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Solution Overview
Problem
Existing organic materials are prone to degradation induced by light, heat, or oxidation, and current stabilizers are inadequate in providing comprehensive protection against these forms of degradation.
Innovation Solution
A sterically hindered amine compound of a specific formula is used in conjunction with organic materials to stabilize them against degradation, offering enhanced protection against light, heat, and oxidation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional stabilizers are used to protect organic materials from degradation, then some protection is provided, but comprehensive protection against light, heat, and oxidation is inadequate
Solution Approach 1:
The patent combines multiple stabilizing functions into a single sterically hindered amine compound that simultaneously protects against light degradation, heat degradation, and oxidation. This multi-functional approach merges what were previously separate protection mechanisms into one integrated molecule, providing comprehensive protection where conventional single-function stabilizers were inadequate.
Solution Approach 2:
The invention creates a composite molecular structure featuring a sterically hindered amine core with specific radical substitutions (R1, R0, R2 groups) that work together to provide multiple stabilization mechanisms. The composite nature of the molecule allows different parts to address different degradation pathways (light, heat, oxidation) simultaneously.
2Ease of manufacture
If the molecular structure is simplified for ease of manufacture, then production becomes easier, but the stabilizing effectiveness against multiple degradation types may be reduced
Solution Approach 1:
The patent applies local quality by introducing specific functional groups (R1, R0, R2 radicals) at particular positions on the molecular core, where each substitution serves a specific stabilizing function. This localized functionalization allows the molecule to address multiple degradation mechanisms without requiring complete structural redesign, balancing manufacturability with effectiveness.
Data Source
AI summary
Disclosed herein is a compound of the formula (I), wherein one or two radicals of the radicals R1 are independently of one another C1-C20alkyloxy or C3-C12cycloalkyloxy and the remaining radicals R1 are independently of one another hydrogen, C1-C20alkyl or C3-C12cycloalkyl; the radicals R0 and R2 are independently of one another hydrogen, C1-C20alkyl, C3-C12cycloalkyl or a group of the formula (II-a) with R3 being hydrogen, C1-C20alkyl, C3-C12cycloalkyl, C1-C20alkyloxy or C3-C12cycloalkyloxy; Y is C2-C12alkylene; m is 0 or 1; n is 1, 2 or 3; when n is 1, X is hydrogen, C1-C20alkyl, C3-C12cycloalkyl or a group of the formula (II-a); when n is 2, X is C2-C12alkylene; when n is 3, X is a group N(Z—)3 with Z being C2-C12alkyl.