Aqueous Binder Formulations With Low-Stain Plasticizer Esters
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Solution Overview
Problem
Aqueous formulations containing binders used for treating substrates, such as textiles, often result in stains due to plasticizer residues after thermal treatment, which affect the aesthetic appeal and fastness properties like rubbing fastness.
Innovation Solution
The use of specific compounds of the general formula I in aqueous binder-containing formulations, which are designed to minimize plasticizer accumulation and decomposition products, thereby reducing stains and enhancing fastness properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If plasticizers are added to aqueous formulations containing binders to ensure pleasant feel, then the substrates have good handle properties, but deposits and stains form in drying cabinets and on substrates after thermal treatment
Solution Approach 1:
The patent changes the chemical parameters of the plasticizer by selecting specific esters with controlled molecular weights and chemical compositions. By adjusting these parameters, the formulation maintains pleasant handle properties while reducing decomposition and deposit formation during thermal treatment.
Solution Approach 2:
The patent employs plasticizers that are designed to be consumed or decomposed in a controlled manner during thermal treatment, preventing long-term accumulation and stain formation on substrates while still providing the necessary handle properties during the processing stage.
2Ease of operation
If conventional plasticizers are used in aqueous formulations, then substrates achieve pleasant feel, but accumulations of plasticizers reduce fastness properties such as rubbing fastness
Solution Approach 1:
The patent modifies the chemical parameters of the plasticizer selection, specifically using esters with controlled molecular weights and chemical structures that prevent accumulation on the substrate surface. This ensures both pleasant handle properties and maintained fastness properties after thermal treatment.
3Ease of manufacture
If alkyl esters of dicarboxylic acids are used as plasticizers, then substrates have good processability, but decomposition products form residues in drying cabinets
Solution Approach 1:
The patent optimizes the chemical parameters of the ester plasticizers by selecting specific alkyl chains and dicarboxylic acid combinations that maintain good processability during application while minimizing decomposition and residue formation in the drying cabinet.
Solution Approach 2:
The patent transforms the potential harmful decomposition behavior of plasticizers into a beneficial outcome by selecting esters that decompose cleanly or volatilize completely during thermal treatment, converting what would be a harmful residue-forming process into a clean drying process.
Data Source
AI summary
The invention relates to the use of compounds having the common formula (I) in aqueous formulations comprising a binder, wherein the variables are defined as follows: R1 is selected from C1-C20-alkyl, straight-chained or branched, or CO-C1-C19-alkyl or CO-C2-C19-alkenyl, straight-chained or branched, R2 is the same or different and selected from C1-C3-alkyl, R3 is selected from C1-C20-alkyl, straight-chained or branched, or CO-C1-C19-alkyl or CO-C2-C19-alkenyl, straight-chained or branched, x a number in the range from 0 to 20, y is a number in the range from 0 to 20, wherein x and y are not zero simultaneously, and a is a number in the range from 1 to 3.