07.28.23
US 11,708,542 B2 (Mark Robert Sivik, Zhengzheng Huang, Helen S. M. Lu, Rakesh Nambiar, Jayme L. Paullin); The Procter & Gamble Company, Cincinnati, OH, has patented products can be useful as anti-deposition and/or anti-graying agents in laundry detergents and in home care applications. The composition is comprised of a polysaccharide derivative that comprises a polysaccharide substituted with at least one of: at least one sulfate group; at least one sulfonate group; at least one thiosulfate group; or a combination thereof.
The polysaccharide is poly alpha-1,3-1,6-glucan, wherein at least about 30% of the glycosidic linkages of the poly alpha-1,3-1,6-glucan are alpha-1,3 linkages; at least about 30% of the glycosidic linkages of the poly alpha-1,3-1,6-glucan are alpha-1,6 linkages; the poly alpha-1,3-1,6-glucan has a weight average degree of polymerization (DPw) of at least about 10; and (iv) the alpha-1,3 linkages and alpha-1,6 linkages of the poly alpha-1,3-1,6-glucan do not consecutively alternate with each other.
The polysaccharide is poly alpha-1,3-1,6-glucan, wherein at least about 30% of the glycosidic linkages of the poly alpha-1,3-1,6-glucan are alpha-1,3 linkages; at least about 30% of the glycosidic linkages of the poly alpha-1,3-1,6-glucan are alpha-1,6 linkages; the poly alpha-1,3-1,6-glucan has a weight average degree of polymerization (DPw) of at least about 10; and (iv) the alpha-1,3 linkages and alpha-1,6 linkages of the poly alpha-1,3-1,6-glucan do not consecutively alternate with each other.