Epoxy Amino Silane Copolymer Composition for Durable Surface Films
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Solution Overview
Problem
Existing copolymers formed from epoxy compounds and amino silanes have limited durability and are typically liquids, making them unsuitable for surface applications due to their lack of stability and effectiveness in forming a durable film.
Innovation Solution
A composition comprising the reaction product of an oxirane or oxetane compound with an amino silane, where the mole ratio of oxirane or epoxy groups to amino groups is optimized, forming a cross-linked network with alkoxy silane functional moieties that can be hydrolyzed and further reacted to create a thermally stable siloxane bond, enhancing durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing copolymers formed from epoxy compounds and amino silanes are used, then the material can be applied to surfaces, but the durability and stability are limited due to their liquid state and inability to form robust films
Solution Approach 1:
The patent changes the molecular structure parameters of the copolymer by incorporating alkoxy silane functional moieties that can undergo hydrolysis and condensation reactions. This transforms the material from a simple liquid copolymer into a system capable of forming cross-linked networks, fundamentally altering its physical state and film-forming properties while maintaining applicability.
Solution Approach 2:
The invention creates a composite structure within the copolymer molecule by combining epoxy/Amino silane segments with alkoxy silane functional groups. This composite molecular architecture enables both the liquid state for easy application and the cross-linking capability for durable film formation, resolving the contradiction between ease of operation and reliability.
2Stability of the object's composition
If the copolymer is designed to form cross-linked networks for improved durability, then stability increases, but the complexity of the chemical structure and reaction requirements increase
Solution Approach 1:
The alkoxy silane functional moieties are pre-incorporated into the copolymer structure during synthesis, preparing the material in advance for cross-linking. This preliminary action allows the cross-linked network to form in situ during application or curing, achieving thermal stability without requiring complex post-processing equipment or multi-step manufacturing procedures.
Solution Approach 2:
The copolymer structure is designed to self-cross-link through the hydrolysis and condensation of alkoxy silane groups. This self-service mechanism enables the formation of stable cross-linked networks without external catalysts or complex processing equipment, achieving high thermal stability while maintaining relatively simple application procedures.
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 resulting polymer exhibits improved durability and stability, allowing for effective application on surfaces and forming a robust film, suitable for various uses including agricultural treatments, coatings, personal care products, and home care applications.
Implementation Method 1
alkoxy silane functional moieties that can be hydrolyzed and further reacted to create a thermally stable siloxane bond
Implementation Method 2
alkoxy silane functional moieties that can be hydrolyzed and further reacted to create a thermally stable siloxane bond
Implementation Method 3
the reaction product of an oxirane or oxetane compound with an amino silane... forming a cross-linked network
Data Source
AI summary
The present invention provides for a composition comprising the reaction product of a. an oxirane or oxetane compound comprising at least two oxirane or oxetane groups; and b. an amino silane having the formula: N(H)(R1)R2Si(OR3)3-a-b-c(OR4)a(R5Si(OR6)d(R7)e) b Rc with R1 is chosen from the group consisting of H or a monovalent hydrocarbon radical containing one to 20 carbon atoms; R2 and R5 are independently selected from a group consisting of oxygen or a divalent linear or branched hydrocarbon radical consisting of 1-60 carbons; R4 is a hydrocarbon radical that contains 3 to 200 carbon atoms; R3, R6, R7, and R8 and are each independently selected from the group of monovalent linear or branched hydrocarbon radicals having from 1 to 200 carbon atoms; the subscript b is zero or a positive number and has a value ranging from 0 to 3; the subscripts a, and c are zero or positive and have a value ranging from 0 to 3 subject to the limitation that (a+b+c)≦3; the subscripts d and e are zero or positive and have a value ranging from 0 to 3 subject to the limitation that (d+e)≦3.