# US 10,370,624 B2 · Dishwashing pastes

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- Number: US 10,370,624 B2
- Document ID: US10370624B2
- Status: Granted
- Kind: B2
- Application number: 15/182,475
- Filed: 2016-06-14
- Published: 2017-06-29
- Granted: 2019-08-06
- Earliest claimed: 2015-12-28
- Assignees: Colgate-Palmolive Company
- Applicants: Colgate-Palmolive Company
- Inventors: Santiago Salas; Joshua Gerardo Henderson Villalpando; Ammanuel Mehreteab; Lidia Venegas; Margarita Zapata; Arianis Riofrio; Mario Alejandro Herrera Lazo De La Vega
- Web page: https://patentgrep.com/patent/US10370624B2

## CPC

- C11D 17/003: {Colloidal solutions, e.g. gels; Thixotropic solutions or pastes}
- C11D 1/146: {Sulfuric acid esters}
- C11D 1/22: derived from aromatic compounds
- C11D 1/29: Sulfates of polyoxyalkylene ethers
- C11D 1/75: Amino oxides
- C11D 3/046: {Salts}
- C11D 3/08: Silicates
- C11D 3/10: Carbonates {; Bicarbonates}
- C11D 3/1233: {Carbonates, e.g. calcite or dolomite}
- C11D 3/1246: {Silicates, e.g. diatomaceous earth}
- C11D 3/14: Fillers; Abrasives {; Abrasive compositions; Suspending or absorbing agents not provided for in one single group of C11D3/12; Specific features concerning abrasives, e.g. granulometry or mixtures (dyes, pigments C11D3/40)}
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

Described herein, are dishwashing paste compositions comprising: an abrasive; a pH modifying agent in an amount effective to provide a pH greater than 7; a structuring agent; and a source of polyvalent cations. Methods of making and using these compositions are also described.

## Claims

### Claim 1

A dishwashing paste composition, comprising:
from about 20 wt. % to about 50 wt. % of an abrasive;
a pH modifying agent in an amount effective to provide a pH greater than about 7;
from about 1 wt. % to about 10 wt. % of sodium silicate as a structuring agent; and
from about 5.02 wt. % to about 20.09 wt. % of magnesium chloride as a source of polyvalent cations;
wherein a weight ratio of magnesium chloride to sodium silicate is from 0.35 to 1.4;
wherein the dishwashing paste composition has a penetrability of less than about 8 mm after 3 days; and
wherein the dishwashing paste composition maintains a penetrability of greater than about 3 mm after about 90 days.

### Claim 2 (depends on 1)

The dishwashing paste composition according to claim 1, comprising from about 30 wt. % to about 40 wt. % of an abrasive.

### Claim 3 (depends on 1)

The dishwashing paste composition according to claim 1, wherein the pH modifying agent is selected from sodium carbonate, sodium bicarbonate, and a combination thereof.

### Claim 4 (depends on 1)

The dishwashing paste composition according to claim 1, comprising from about 1.5 wt. % to about 7.5 wt. % of a structuring agent.

### Claim 5 (depends on 1)

The dishwashing paste composition according to claim 1, comprising from about 2 wt. % to about 6 wt. % of a structuring agent.

### Claim 6 (depends on 1)

The dishwashing paste composition according to claim 1, wherein the molar ratio of pH modifying agent to structuring agent is greater than about 4:1.

### Claim 7 (depends on 1)

The dishwashing paste composition according to claim 1, wherein the molar ratio of pH modifying agent to structuring agent is about 4.4:1 or greater.

### Claim 8 (depends on 1)

The dishwashing paste composition according to claim 1, wherein the weight ratio between magnesium chloride and sodium silicate is 0.35, 0.7, or 1.40.

### Claim 9 (depends on 1)

The dishwashing paste composition according to claim 1, wherein the surfactant system comprises a surfactant selected from: sodium C10-C13 alkylbenzenesulfonate (linear); magnesium C10-C13 alkylbenzenesulfonate (linear); lauryl/myristylamidopropyl dimethylamine oxide; sodium laureth sulfate; sodium lauryl sulfate; and a combination of two or more thereof.

### Claim 10 (depends on 1)

The dishwashing paste composition according to claim 1, wherein the surfactant system comprises from about 5 wt. % to about 20 wt. % sodium C10-C13 alkylbenzenesulfonate (linear) and from about 1 wt. % to about 5 wt. % of magnesium C10-C13 alkylbenzenesulfonate (linear).

### Claim 11 (depends on 1)

The dishwashing paste composition according to claim 1, wherein the dishwashing paste composition provides a penetrability of less than 6 mm after 7 days.

### Claim 12 (depends on 1)

The dishwashing paste composition according to claim 1, wherein the dishwashing paste composition provides a penetrability of about 4 mm after about 90 days.

### Claim 13 (depends on 1)

The dishwashing paste composition according to claim 1, comprising from about 30 wt. % to about 40 wt. % of an abrasive, wherein the molar ratio of the source of polyvalent cations to structuring agent is from about 1:1 to about 2:1, and wherein the surfactant system comprises from about 5 wt. % to about 20 wt. % sodium C10-C13 alkylbenzenesulfonate (linear) and from about 1 wt. % to about 5 wt. % of magnesium C10-C13 alkylbenzenesulfonate (linear).

### Claim 14 (depends on 1)

The dishwashing paste composition according to claim 1, comprising from about 30 wt. % to about 40 wt. % of an abrasive, wherein the molar ratio of the source of polyvalent cations to structuring agent is about 1:1, and wherein the surfactant system comprises from about 5 wt. % to about 20 wt. % sodium C10-C13 alkylbenzenesulfonate (linear) and from about 1 wt. % to about 5 wt. % of magnesium C10-C13 alkylbenzenesulfonate (linear).

### Claim 15 (depends on 14)

The dishwashing paste composition according to claim 14, wherein the structuring agent comprises sodium silicate.