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US 12,194,203 B2Granted
Gels comprising a hydrophobic material
AssigneeThe Procter & Gamble Company
InventorsSusana Fernandez Prieto, Jose Maria Franco, Emiliano Fratini, Craig James, Inmaculada Martinez Garcia, Denis Gerard O'Sullivan, Gaurav Saini, Harshal Diliprao Santan, Johan Smets, Rahul Vyas
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Abstract
The gel compositions as described herein, are less affected by changes in humidity, are readily formed into complex shapes, and can contain high loadings of the hydrophobic material, even when the material is not highly hydrophobic, and provide a more controlled release of the hydrophobic material.
Claims14
A chemically cross-linked gel composition consisting of a hydrophobic material and a chemically cross-linked castor oil;
- wherein said castor oil is cross-linked using a cross-linking agent selected from the group consisting of 1,6 hexamethylene diisocyanate (HDI), L-Lysine ethyl ester diisocyanate (LDI), pentamethylene diisocyanate, 1,3,5-tris (5-isocyanatopentyl)-1,3,5-triazine-2,4,6 (1H,3H,5H)-trione, and mixtures thereof;
- wherein the gel composition is formed using a molar ratio of castor oil to cross-linking agent of from about 1:0.75 to about 1:2.
Dependencies are inferred from the claim text.