Polyether Polyol Resins With Controlled Isomer Blend
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Solution Overview
Problem
Existing polyether polyol resin compositions face challenges in achieving optimal softening properties and leveling in coatings due to high concentrations of blocked and highly branched isomers, which affect their performance when used with certain polymers.
Innovation Solution
A composition of α,α-branched alkane carboxylic glycidyl esters derived from butene oligomers is developed, with a controlled blend of isomers to limit the concentration of blocked and highly branched isomers to below 30% weight, enhancing the performance of the glycidyl esters when combined with polyether polyols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional glycidyl ester compositions with high concentrations of blocked and highly branched isomers are used, then the softening properties and leveling in coatings are improved, but the compatibility with certain polymers deteriorates
Solution Approach 1:
The invention changes the compositional parameters of the glycidyl ester mixture by controlling the concentration of blocked and highly branched isomers to maximum 55%, preferably below 40%, and most preferably below 30% weight. This parameter optimization resolves the contradiction by achieving both improved softening properties and enhanced polymer compatibility through controlled isomer distribution.
Solution Approach 2:
The invention creates a composite glycidyl ester composition comprising multiple isomers in specific proportions. The mixture includes blocked isomers (for softening properties) while limiting highly branched isomers (for compatibility), achieving a balanced composite material that satisfies both requirements simultaneously.
2Manufacturing precision
If the concentration of blocked and highly branched isomers is increased to improve softening properties, then the leveling performance is enhanced, but the performance with specific polymers deteriorates
Solution Approach 1:
The invention optimizes the concentration parameters of different isomers in the glycidyl ester mixture. By setting blocked isomers at maximum 55% and highly branched isomers at maximum 55% (preferably below 40% and most preferably below 30%), the composition achieves both excellent leveling performance and reliable polymer compatibility.
3Reliability
If a broader range of isomers is included to enhance softening properties, then the coating performance is improved, but the complexity of the composition increases
Solution Approach 1:
The invention applies local quality by differentiating between beneficial blocked isomers and problematic highly branched isomers. Rather than treating all isomers equally, the composition specifically controls the concentration of each type, maintaining coating performance while managing complexity through targeted isomer selection.
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 controlled isomer blend improves the leveling and performance of coatings, providing attractive softening properties and compatibility with specific polymers, making them suitable as reactive diluents or monomers in paints and adhesives.
Implementation Method 1
US 5,051,492 is about the process to prepare such a modified resins using metal salt to carry out the etherification reaction of a polyol and a 10 carbon chain alkyl glycidyl ester
Implementation Method 2
The problem of providing better softening derivatives of α,α-branched acids, manufactured from alkenes, carbon monoxide and water and a nickel catalyst was solved therein by a process, which actually comprised: (a) oligomerisation of butene; (b) separation of butene dimers and/or trimers from the oligomerisate; (c) conversion of the butene dimers and/or trimers into carboxylic acids
Implementation Method 3
conversion of the carboxylic acids into the corresponding vinyl esters showing attractive softening properties when mixed into other polymers or if used as comonomers in coatings
Data Source
AI summary
The invention relates to compositions of polyether polyol resins (hydroxyfunctional oligo or poly ether) comprising a mixture of alpha,alpha-branched alkane carboxylic glycidyl esters derived from butene oligomers characterized in that the sum of the concentration of the blocked and of the highly branched isomers is maximum 55%, preferably below 40%, and most preferably below 30% weight on total composition.