Cationic cassia derivatives and applications therefor
View Patent ↗This invention relates to cationically derivatized polycalactomannans obtained from cassia tora and cassia obtusifolia and to their use in personal care, household care, and institutional care compositions.
1. A personal care composition comprising a Cassia polygalactomannan polymer having repeating units containing a D-mannosyl to D-galactosyl residue ratio of 5 to 1 wherein a portion of the hydrogen groups on the pendant hydroxy substituents on the mannosyl and galactosyl residues are substituted with a group represented by the formula:
—AR 1
wherein A is a substituted or unsubstituted alkylene group containing 1 to 6 carbon atoms, and R 1 is a group independently selected from —N(R 3 ) 3 + X − , —S(R 3 ) 2 + X − , and —P(R 3 ) 3 + X − , wherein R 3 independently represents substituted and unsubstituted C 1 to C 24 alkyl, substituted and unsubstituted benzyl and substituted and unsubstituted phenyl; and X is any suitable anion that balances the charge on the onium cation, and an ingredient selected from, surfactants, emulsifiers, emollients, moisturizers, hair conditioning agents, hair fixatives, film-formers, skin protectants, binders, chelating agents, disinfectants, insecticides, fungicides, deodorants, pest repellants, odoriferous materials, antimicrobial agents, antifungal agents, antibiotics, antidandruff agents, abrasives, adhesives, absorbents, colorants, deodorants, antiperspirant agents, humectants, opacifying and pearlescing agents, antioxidants, preservatives, propellants, spreading agents, exfoliants, keratolytic agents, blood coagulants, vitamins, sunscreen agents, artificial tanning accelerators, ultraviolet light absorbers, pH adjusting agents, botanicals, hair colorants, oxidizing agents reducing agents, skin bleaching agents, pigments, anti-inflammatory agents, topical anesthetics, fragrance and fragrance solubilizers, particulates, microabrasives, abrasives, and combinations thereof.
2. A personal care composition of claim 1 wherein said alkyl, alkylene, phenyl and benzyl groups are substituted mono-substituted or independently multi-substituted with a group selected from C 1 to C 3 alkyl, hydroxyl, and halogen.
3. A personal care composition of claim 1 wherein X is a halide.
4. A personal care composition of claim 1 wherein at least one C-6 hydroxyl hydrogen is substituted by the —AR 1 substituent.
5. A personal care composition of claim 1 wherein said polygalactomannan has a number average molecular weight ranging from about 200,000 to about 300,000.
6. A personal care composition of claim 1 wherein said polygalactomannan repeating unit is represented by the formula:
wherein R independently represents hydrogen, and —AR 1 , wherein —AR 1 is defined as above.
7. A personal care composition of claim 6 , wherein n represents an integer ranging from about 15 to about 35.
8. A personal care composition or claim 1 or 2 further comprising an ingredient selected from, water, solvents, non-surfactant suspending agents, and combinations thereof.
9. A personal care composition of claim 8 further comprising an ingredient selected from acidic anti-aging agents, anti-cellulite, anti-acne agents and combinations thereof.
10. A personal care composition of claim 8 further comprising a crosslinking agent.
11. A personal care composition of claim 8 further comprising an ingredient selected from anti-caries agents, anti-tartar agents, anti-plaque agents, flavorants, and combinations thereof.
12. A personal care composition of claim 1 wherein said polygalactomannan polymer is a cross-linked hydrogel.