Laundry Cleaning Booster Polymer Sebum Removal
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Solution Overview
Problem
There is a need for cleaning boosters that maintain primary cleaning performance with reduced surfactant loading in laundry detergents, while also providing improved anti-redeposition performance and biodegradability according to OECD 301F protocol.
Innovation Solution
A cleaning booster of specific formula (I) is developed, which includes a mixture of ethylene oxide and propylene oxide groups, allowing for improved sebum soil removal and anti-redeposition performance, and exhibits desirable biodegradability profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If surfactant loading is reduced in laundry detergent formulations, then environmental sensitivity and material cost concerns are addressed, but primary cleaning performance deteriorates
Solution Approach 1:
The patent introduces a cleaning booster as an intermediary substance that mediates between the reduced surfactant system and the soiled laundry. This booster, comprising specific polymer structures with hydrophilic and hydrophobic segments, acts as a mediator to enhance soil removal capability without requiring high surfactant concentrations, thus resolving the contradiction between reduced harmful factors and maintained cleaning performance
Solution Approach 2:
The cleaning booster is designed as a composite material combining polymer backbones with grafted surfactant-like side chains. This composite structure integrates the benefits of polymer stability with surfactant cleaning action, enabling effective cleaning at lower overall surfactant loadings and addressing environmental concerns while maintaining performance
2Quantity of substance
If surfactant loading is reduced in laundry detergent formulations, then material costs are reduced, but primary cleaning performance deteriorates
Solution Approach 1:
The patent changes the structural parameters of the cleaning agents by introducing polymers with specific graft ratios and molecular weights. This parameter optimization allows the system to achieve enhanced cleaning efficiency per unit of surfactant, enabling reduced surfactant loading while maintaining or improving cleaning performance
Solution Approach 2:
By creating composite polymer-surfactant structures with controlled architecture, the patent achieves synergistic effects where the polymer backbone provides structural integrity and the grafted chains provide cleaning action. This composite approach maximizes cleaning efficiency per unit mass, allowing reduced overall surfactant quantity while maintaining performance
3Reliability
If conventional cleaning boosters are used, then cleaning performance is achieved, but biodegradability is poor according to OECD 301F protocol
Solution Approach 1:
The patent modifies the chemical structure parameters of the cleaning booster by incorporating biodegradable linkages and selecting monomers that undergo complete microbial degradation. The controlled grafting density and molecular weight distribution are optimized to balance cleaning performance with enhanced biodegradability, achieving compliance with OECD 301F protocol while maintaining effectiveness
Solution Approach 2:
The patent converts the potential harm of persistent polymer structures into a benefit by designing the polymer backbone and side chains to be readily biodegradable. The very structures that provide cleaning performance (amphiphilic character, micelle formation capability) are designed with biodegradable bonds, transforming the persistence problem into a biodegradability advantage without sacrificing cleaning function
Data Source
AI summary
Cleaning booster for cleaning dirty laundry is provided, wherein the cleaning booster is of formula (I), wherein b is 0-2; wherein c is 2-4; wherein R is selected from hydrogen, C1-22 alkyl and —CH2C(═O)R14; wherein R14 is of formula (VI); wherein R1 is selected from formula (II)-formula (V); (II) wherein R2 is of formula (VI); (III) wherein R3 is of formula (VI); and wherein R4 is selected from hydrogen and methyl group; (IV) wherein R5 is of formula (VI); wherein f is 1-2; and wherein g is 2-10; (V) wherein R6 is of formula (VI); (VI) wherein R7 is selected from hydrogen and C1-22 alkyl group; wherein each R8 and R9 is independently a hydrogen or a C1-2 alkyl group, with the proviso that at least one of R8 and R9 is hydrogen in each subunit a; and wherein a is 0-30.