Poly Alpha Glucan Derivative for Laundry Care
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Solution Overview
Problem
There is a need for new materials in aqueous applications such as laundry and dish care that are biodegradable, made from renewable resources, and effective as stain removal, anti-deposition, and whiteness agents in detergents, which existing polysaccharides do not adequately address.
Innovation Solution
A poly alpha glucan derivative is developed, comprising a backbone of glucose monomer units with greater than 40% alpha-1,3 glycosidic linkages, combined with alpha-1,6 linkages, and organic groups linked through specific linkage moieties, offering a weight average degree of polymerization between 51 to 150 and a degree of substitution between 0.001 to 3.00.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional polysaccharides are used in laundry and dish care applications, then basic cleaning functions are provided, but they lack sufficient effectiveness as stain removal, anti-deposition, and whiteness agents
Solution Approach 1:
The patent modifies the polysaccharide structure by changing the glycosidic linkage parameters (alpha-1,3 and alpha-1,6 linkages) and introducing organic group substitutions with specific degrees of substitution (0.01 to 3.00). These parameter changes enhance the material's performance as stain removal, anti-deposition, and whiteness agents while maintaining biodegradability and renewable resource origins.
Solution Approach 2:
The invention creates a composite structure by combining poly alpha glucan backbone with various organic groups (such as alkyl, aryl, hydroxyalkyl groups) linked through ether, ester, or amide linkages. This composite approach provides multiple functions including rheology modification, emulsion stabilization, and dispersing capabilities in a single material system.
2Reliability
If polysaccharides are used as rheology modifiers and emulsion stabilizers, then basic functional performance is achieved, but solubility and dispersibility in aqueous solutions are insufficient
Solution Approach 1:
The patent optimizes solubility and dispersibility by controlling the degree of substitution (0.01 to 3.00) and the type of organic groups attached to the poly alpha glucan backbone. The specific combination of alpha-1,3 and alpha-1,6 glycosidic linkages with selected substituents enhances aqueous solution solubility while maintaining rheology modification and emulsion stabilization functions.
3Reliability
If new materials are developed for laundry and dish care applications, then enhanced performance as stain removal and anti-deposition agents is achieved, but environmental sustainability and biodegradability may be compromised
Solution Approach 1:
The patent maintains environmental sustainability by using poly alpha glucan, a biodegradable polysaccharide, as the base structure and substituting it with environmentally benign organic groups. The modified material retains biodegradability while achieving enhanced stain removal, anti-deposition, and whiteness performance in laundry and dish care applications.
Data Source
AI summary
A laundry care or dish care composition including a poly alpha glucan derivative, wherein the poly alpha glucan derivative includes:(i) a poly alpha glucan backbone of glucose monomer units, wherein greater than or equal to 40% of the glucose monomer units are linked via alpha-1,3 glycosidic linkages, or a combination of alpha-1,3 and alpha-1,6 glycosidic linkages, and optionally at least 5% of the backbone glucose monomer units have branches via alpha-1,2 glycosidic linkages; and(ii) at least one organic group linked to the poly alpha glucan backbone through a linkage moiety; wherein, the poly alpha glucan backbone has a weight average degree of polymerization of from 51 to 150; and wherein, the poly alpha glucan derivative has a degree of substitution of linkage moiety of from 0.001 to 3.00.