Polyetheramine Resin Coatings Oxygen Barrier
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Solution Overview
Problem
Current polyetheramine resin coatings provide enhanced oxygen barrier properties but still fall short in achieving high barrier properties for gases and organic liquids without adverse effects on water vapor transmission rate and haze, necessitating further improvement.
Innovation Solution
A high gas barrier composition is achieved by blending polyetheramine resin with highly hydroxylated organic compounds, such as glycerin or sorbitol, and optionally boric acid, to enhance oxygen barrier properties by at least 20% while maintaining clarity and preventing haze.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polyetheramine resin coating is used to improve oxygen barrier properties, then oxygen transmission rate is reduced, but water vapor transmission rate and haze are adversely affected
Solution Approach 1:
The patent applies composite materials by combining polyetheramine resin with highly hydroxylated organic compounds (such as glycerin, sorbitol, or polyvinyl alcohol) to create a blended coating composition. This composite approach allows the coating to achieve superior oxygen barrier properties (reducing oxygen transmission rate by at least 20% compared to polyetheramine alone) while maintaining acceptable water vapor transmission rate and haze characteristics that polyetheramine resin cannot achieve alone.
2Reliability
If higher barrier properties are achieved by increasing coating thickness or concentration, then oxygen barrier is improved, but other desired properties such as clarity and water vapor transmission are compromised
Solution Approach 1:
The patent applies parameter changes by modifying the chemical composition parameters of the coating - specifically incorporating highly hydroxylated organic compounds with hydroxyl-to-carbon ratios of 0.5 or greater. This compositional parameter change enables the coating to achieve at least 20% improvement in oxygen barrier properties while maintaining clarity and controlling haze, avoiding the need to increase coating thickness that would compromise optical properties.
3Ease of manufacture
If polyetheramine resin is used alone, then manufacturing is simple, but barrier properties are insufficient for high-performance applications
Solution Approach 1:
The patent applies merging by combining polyetheramine resin with highly hydroxylated organic compounds into a single blended coating composition that can be applied in one coating step. This merging maintains the ease of manufacture associated with single-coat applications while achieving superior oxygen barrier properties (at least 20% reduction in oxygen transmission rate) that neither component could achieve alone, eliminating the need for multiple coating layers or complex manufacturing processes.
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 blend significantly improves oxygen barrier properties of polyetheramine resin coatings, reducing oxygen transmission rates and maintaining clarity, even under high humidity conditions, with sorbitol being the most preferred additive due to its stability and cost-effectiveness.
Implementation Method 1
a blend of polyetheramine resin and certain additives that are highly hydroxylated organic compounds (including polymers)... having a hydroxyl-to-carbon ratio of 0.5 or greater
Data Source
AI summary
A high barrier composition to a gas or organic liquid usable as a coating or layer on an article. The composition includes a blend of polyetheramine resin and at least one additive being a highly hydrolyzed organic compound, preferably of a low molecular weight, either with our without boric acid. Articles employing the gas barrier composition also constitute a part of this invention.