Sterically Hindered Amine Stabilizers for Organic Material Protection

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Solution Overview

Problem

Existing organic materials are prone to degradation from light, heat, or oxidation, and current stabilizers are inadequate in providing comprehensive protection across various applications.

Innovation Solution

A composition comprising a sterically hindered amine with specific functionalization, such as compounds of formulas (I-1), (I-2), and (II-1), is used in combination with organic materials to stabilize them against degradation, offering enhanced protection against light, heat, and oxidation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional stabilizers are used to protect organic materials from degradation, then protection against light, heat or oxidation is provided, but the protection is inadequate across various applications

Engineering Contradiction:

Improveprotection effectivenessVSAvoidapplication range

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies universality by designing a stabilizer composition with multiple different stabilizers (including hindered amine light stabilizers, antioxidants, and other protective agents) that work synergistically to provide comprehensive protection against multiple degradation mechanisms (light, heat, oxidation) simultaneously, making the composition adaptable to diverse applications

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent employs composite materials by combining multiple stabilizer compounds with distinct chemical structures and functions into a single composition system, where each component contributes specific protective properties, creating a synergistic effect that enhances overall reliability and broadens application versatility

Inventive Principle:

Principle #40Composite materials

2Ease of manufacture

If stabilizer composition is simplified, then ease of manufacture improves, but protection comprehensiveness deteriorates

Engineering Contradiction:

Improvecomposition complexityVSAvoidprotection comprehensiveness

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent applies merging by combining multiple stabilizer functions into a single integrated composition formulation, where different stabilizers are combined in specific ratios and incorporated together into the organic material, simplifying the manufacturing process while maintaining comprehensive protection

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP2630166B1Oligomeric light stabilizers with a specific functionalization

Publication Date: 2019.06.12 BASF SE

AI summary

A compound of the formula (I) wherein m and n are independently of one another a number from 1 to 50; the ratio of m/n is 1:10 to 10:1, the recurring units X can have the same definition or different definitions, the recurring units Y can have the same definition or different definitions and the recurring units X and Y can have a random, alternating or block distribution; the recurring unit X is a group of the formula (I-a) and the recurring unit Y is a group of the formula (I-b) the radicals R1 independently of one another are C1-C12alkyl or C3-C12cycloalkyl; the radicals R2 and R4 are independently of one another C12-C30alkyl; the radicals R3 are independently of one another hydrogen, C1-C12alkyl or C3-C12cycloalkyl.