The Procter Gamble Company

Xiaoqing Song

Peter Robert Foley

Lynda Anne Speed

Jeffrey Donald Painter

Sabine Ursula Metzger-Groom

Lucio Pieroni

William Michael Scheper

Christiaan Arthur Jacques Kamiel Thoen

Glenn Steven Ward

Douglas A Dale

Melissa D Aquino

A method for improving stability of a dye used in a colored aqueous acidic rinse aid composition to ambient and ultra-violet light radiation is disclosed. The method includes the step of adding a chelant to an acidic rinse aid composition. The chelant is present in an amount of at least 1 ppm by weight of the rinse aid composition.

Method for improving dye stability in colored acidic rinse-aid formulations

A stable aqueous rinse aid dispersion includes a low foaming nonionic surfactant present in a range of from about 2% to about 80% by weight of the rinse aid dispersion, a hydrotrope present in a range of from about 0.5% to about 20% by weight of the rinse aid dispersion, and a partially neutralized poly(meth)acrylic acid polymer present in a range of from about 0.1% to about 15% by weight of the rinse aid dispersion, wherein the polymer is at least 75% non-neutralized. The poly(meth)acrylic acid polymer has an average molecular weight in a range of from about 1000 to about 50,000. The rinse aid dispersion has a pH in a range of from about 2 to about 6. The stable aqueous rinse aid dispersion is essentially free of a high molecular weight compatibilizing polymer.

Rinse-aid formulation

A detergent tablet comprising i) a compressed solid body portion having therein at least one mould in said compressed solid body portion; and ii) at least one non-compressed, non-encapsulating portion mounted in said at least one mould of said compressed solid body portion, having an area of B, said at least one non-compressed, non-encapulating portion comprising at least one detergent active; wherein surface area of said detergent tablet, excluding area of said at least one mould, is A; and wherein further ratio of B to A is from about 1:50 to about 4:1, by area.

Multi-layer detergent tablet having both compressed and non-compressed portions

A detergent tablet comprising (a) a compressed solid body portion having at least one mold in said compressed solid body portion; (b) a non-compressed, gelatinous portion mounted in said at least one mold of said compressed solid body portion, said gelatinous portion comprising a thickening system and at least one detergent active; and wherein said non-compressed, gelatinous portion has either a yield strength of from about 5 to about 80 Pa, or has an average viscosity of from about 100 to about 12000 cP before said non-compressed, gelatinous portion is mounted in said at least one mold.

Detergent tablet

A multi-layered detergent tablet comprising: a) a core having a first detergent active agent; b) a first encapsulating layer surrounding said core, having a second detergent active agent; c) a second encapsulating layer surrounding said first encapsulating layer, having a third detergent active agent and a disruption system; wherein disruption of said second encapsulating layer is such that at least 25% of said third detergent active agent is released prior to release of said second detergent active agent.

Multi-layer detergent tablet

A detergent tablet comprises: (a) a compressed solid body portion having at least one mold in the compressed body portion; and (b) a non-compressed, gelatinous portion integrally mounted in the mold of the compressed body portion, wherein the gelatinous portion comprising a thickening system and at least one detergent active. The thickening system preferably includes a non-aqueous diluent and a gelling agent and the detergent active is preferably selected from the group consisting of enzymes, surfactants, effervescing agents, bleaching agents, silver care agents, builders;, and mixtures thereof.

A particle for detersive enzymes is disclosed by way of the present invention. The particle comprises a composite particle suitable for incorporation into a detergent composition comprising an enzyme containing core material and a water soluble carboxylate barrier layer coated on the enzyme containing core material. The preferred enzymes are protease enzymes. Automatic dishwashing compositions employing the particle are also disclosed.

Growing community of inventors

West Chester, OH, United States of America

Xiaoqing Song