Light Stabilizer Polymer Dispersion for Acid-Stable Coatings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing acrylic polymer dispersions in water are not sufficiently stable under acidic conditions, leading to potential coagulation and instability.
Innovation Solution
A polymer is formed by polymerizing a monomer component containing a compound with a specified structure, such as represented by general formula (1), which includes a tertiary amine group to suppress basicity and moderate hydrophilicity, preventing coagulation under acidic conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If acrylic polymer is dispersed in water to form a coating composition, then the coating material can be applied to substrates, but the dispersion stability deteriorates under acidic conditions
Solution Approach 1:
The invention changes the chemical structure parameters of the light stabilizer monomer by introducing a tertiary amine group and controlling the hydrophilic-lipophilic balance. This structural modification allows the polymer to maintain dispersion stability under acidic conditions while remaining applicable as a coating material. The specific parameter change is the incorporation of the compound with formula (1) having a tertiary amine group with controlled hydrophilicity into the polymer chain.
2Reliability
If basic light stabilizers are used to improve light resistance, then light stability is enhanced, but coagulation occurs under acidic conditions
Solution Approach 1:
The invention applies local quality by introducing a tertiary amine group at a specific position within the light stabilizer molecule (formula (1)), rather than using conventional basic amino groups throughout. This localized structural modification with controlled hydrophilicity allows the molecule to provide light stabilizing function while resisting coagulation in acidic environments. The tertiary amine group provides the necessary light absorption characteristics without the excessive basicity that causes coagulation.
3Reliability
If conventional light stabilizer monomers are polymerized, then light stabilizing function is achieved, but dispersion stability under acidic conditions is insufficient
Solution Approach 1:
The invention creates a composite light stabilizer monomer structure that combines the light-absorbing piperidine ring system with a hydrophilic chain containing a tertiary amine group (formula (1)). This composite molecular structure integrates both the light stabilizing function and the acid-resistant dispersion stability into a single polymer component, achieving dual functionality through molecular-level composite design.
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 allows for the formation of a dispersion that is stable under acidic conditions, enhancing the stability and light resistance of coating films.
Implementation Method 1
a polymer obtained by polymerizing a monomer component containing a compound represented by the following general formula (1)... a dispersion excellent in stability can be formed under an acidic condition
Data Source
AI summary
To provide a composition, a coating material composition, an article, a method for producing a composition, a light stabilizer monomer component, and a light stabilizer polymer. A composition includes a polymer obtained by polymerizing a monomer component containing a compound represented by the following general formula (1), and an aqueous dispersion medium, in the general formula (1), n1 represents 1 or 2, in which, when n1 is 1, X1 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms, or the like, or when n1 is 2, X1 represents a substituted or unsubstituted divalent hydrocarbon group having 1 to 30 carbon atoms, or the like and Y1 represents a single bond or the like, Z1 represents a single bond or the like, R3 to R8 each independently represent a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms, and at least one of X1 and R1 is a group containing a vinyl group, and in the general formula (2), * represents a moiety bound with an oxygen atom, and R2 represents a hydrogen atom or the like.