Composition containing oligomer
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Solution Overview
Problem
Existing aqueous compositions used for treating textiles to enhance tensile strength often require high temperatures for crosslinking, leading to undesirable formaldehyde release, and fail to provide adequate strength when exposed to alcohol.
Innovation Solution
An aqueous composition comprising polymerized units of monoethylenically unsaturated epoxide-functional monomers, monoethylenically unsaturated alkoxysilane-functional monomers, chain transfer agents, and other monoethylenically unsaturated monomers, which undergo crosslinking at low temperatures with minimal formaldehyde release, forming a film that enhances textile tensile strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional latex polymers are used for crosslinking treatment, then tensile strength is improved, but formaldehyde is released which is undesirable
Solution Approach 1:
The patent changes the chemical parameters of the crosslinking system by using alternative crosslinking agents and modifying the oligomer composition to eliminate formaldehyde release while maintaining crosslinking efficiency and tensile strength improvement
Solution Approach 2:
The patent creates a composite aqueous composition containing multiple components including oligomers with specific functional groups (epoxide, alkoxysilane), chain transfer agents, and other monomers that work synergistically to provide crosslinking without formaldehyde release
2Stability of the object's composition
If high temperatures are used for crosslinking, then crosslinking reaction is achieved, but the temperature requirement is undesirable
Solution Approach 1:
The patent changes the thermal parameters of the crosslinking process by incorporating monomers and oligomers that enable crosslinking at lower temperatures through modified chemical reactivity and lower glass transition temperatures
Solution Approach 2:
The patent introduces chain transfer agents and specific oligomer structures that act as intermediaries to facilitate crosslinking reactions at lower temperatures by providing alternative reaction pathways with lower activation energy
3Shape
If conventional polymer compositions are used, then film formation is achieved, but adequate strength in wet and alcohol-exposed conditions is not provided
Solution Approach 1:
The patent develops a composite oligomeric system combining epoxide-functional monomers, alkoxysilane-functional monomers, and other components that provide both film formation and enhanced wet strength through synergistic interactions
Solution Approach 2:
The patent introduces specific functional groups at localized positions within the oligomer structure that provide water resistance and strength maintenance in wet conditions, while the overall composition maintains film formation capabilities
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 composition effectively increases textile tensile strength, maintains strength in wet conditions, and withstands isopropyl alcohol exposure without significant formaldehyde release, achieving robust and durable textile treatments.
Implementation Method 1
the crosslinking reaction that took place after application to the substrate caused the release of formaldehyde
Implementation Method 2
aqueous dispersions of functionalized copolymers based on monomers including hydrolyzable silane monomers
Implementation Method 3
evaporating said water from said aqueous composition
Data Source
AI summary
A first aspect of the present invention is an aqueous composition comprising water and an oligomeric composition, wherein said oligomeric composition comprises polymerized units of (a) one or more monoethylenically unsaturated epoxide-functional monomers, (b) one or more monoethylenically unsaturated alkoxysilane-functional monomers, (c) one or more chain transfer agents, and (d) one or more monoethylenically unsaturated monomers different from (a), (b), and (c). A second aspect of the present invention is a method of treating a textile comprising bringing the aqueous composition of the first aspect into contact with said textile and then evaporating said water from said aqueous composition.