Polymer Composition with Polyalkylene Oxide Chains for Liquid Detergents
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Solution Overview
Problem
Laundry detergents face challenges in effectively removing fatty soils and reducing greying of fabrics due to soil redeposition, with existing anti-greying agents and enzymes showing insufficient performance and stability issues, particularly in liquid formulations.
Innovation Solution
Incorporation of a polymer composition comprising a core with specific side chains, including polyalkylene oxide chains and optional additional groups, along with enzymes like lipases and proteases, to enhance soil removal and stability, along with anionic surfactants to improve detergency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If lipase is used to support fat removal, then fatty soil removal is improved, but compatibility with builders in liquid laundry detergents deteriorates
Solution Approach 1:
The patent modifies the chemical parameters of the polymer structure, specifically using polyalkylene oxide chains with controlled molecular weights and compositions to create a compatible environment for lipase activity in liquid detergent formulations containing builders
Solution Approach 2:
The invention creates a composite system combining polymer (A) with specific structural features, lipase, and builder chemicals, where the polymer acts as a compatibility enhancer that allows all components to work together effectively in liquid detergent formulations
2Object-affected harmful factors
If existing anti-greying agents are used, then soil redeposition is reduced, but anti-greying performance is insufficient
Solution Approach 1:
The patent applies local quality by designing polymer (A) with specific functional groups and structural features localized in different parts of the molecule, enabling simultaneous anti-greying activity and compatibility with other detergent components
Solution Approach 2:
The invention changes the molecular parameters of the anti-greying agent by using polymers with controlled molecular weights, specific functional group compositions, and defined structural characteristics to achieve superior anti-greying performance
3Ease of operation
If liquid laundry detergent formulations are used, then ease of operation is improved, but storage stability deteriorates
Solution Approach 1:
The patent changes the physical and chemical parameters of the liquid detergent formulation by incorporating polymer (A) with specific molecular weight, composition, and structural features that enhance storage stability while maintaining liquid form and usability
Data Source
AI summary
Disclosed herein is a composition includingat least one polymer including(a) a core that bears one to 50 moieties of the general formula (I),and groups of the general formulawhere the asterisk stands for another group according to general formula (I), linked though X2, or for C1-C4-alkyl, or for a group according to formula (II), or for a polyalkylene oxide chain (b),where X1 are same or different and selected from C1-C2-alkyl and hydrogen,where X2 are same of different and selected from C2-C6-alkylene, straight-chain or branched, non-substituted or substituted with one or more hydroxyl groups, esters of carboxylic acids, or ether groups, and(b) polyalkylene oxide chain.