Detergent compositions

• US 4,613,448 A
• Filed: 03/29/1979
• Issued: 09/23/1986
• Est. Priority Date: 09/24/1973
• Status: Expired due to Term

• Current Assignee: Colgate-Palmolive Company
• Original Assignee: Colgate-Palmolive Company
• Inventors: Cheng, Bao-Ding
• Primary Examiner(s): ALBRECHT, DENNIS
• Application Number:
  US06/025,092
• Time in Patent Office: 2,735 Days
• Field of Search: 252/89, 252/110, 252/132, 252/135, 252/153, 252/527, 252/546, 252/173, 252/180, 252/156, 252/157, 252/174.19
• US Class Current: 510/434
• CPC Class Codes: C11D 3/2086 Hydroxy carboxylic acids-salts thereof

Abstract

A non-phosphate and non-NTA containing detergent composition comprising a detergent, especially an anionic or nonionic detergent and as a builder tetrahydroxysuccinic acid, and salts thereof in a weight ratio of 20:1 to 1:20.

Claims

1. A cleaning composition comprising 1-95% by weight of a detergent and from 5-95% by weight of a detergent builder selected from the group consisting of tetrahydroxysuccinic acid and the water-soluble salts thereof, said detergent and said detergent builder being present in a weight ratio of 1:

20 to 20;

1, said composition providing an aqueous wash solution having a pH of at least 8.5.

2. The cleaning composition of claim 1, wherein said detergent is an organic synthetic detergent selected from the group consisting of anionic, cationic, nonionic, ampholitic and zwitterionic surface active compounds and mixtures thereof.

3. The cleaning composition of claim 2, wherein said detergent builder is tetrahydroxysuccinic acid.

4. The cleaning composition of claim 2 which, mixed with an aqueous medium, yields a pH of at least about 9.

5. The cleaning composition of claim 2, wherein said detergent is a nonionic or anionic detergent.

6. A cleaning composition as defined in claim 1 wherein the detergent builder is sodium tetrahydroxysuccinate.

7. A cleaning composition as defined in claim 1 comprising from 10-85% by weight of a detergent, from 5-95% by weight of a detergent builder selected from the group consisting of tetrahydroxysuccinic acid and the water-soluble salts thereof, from 7-25% by weight of a C₂ -C₄ mono or polyhydroxy alcohol and from 5-75% by weight of water, said composition being a clear homogeneous liquid, said composition having a pH of at least 8.5.

8. The liquid cleaning composition of claim 7, wherein said detergent builder is tetrahydroxysuccinic acid.

9. The liquid cleaning composition of claim 7, wherein said detergent is a nonionic or anionic detergent.

10. The liquid cleaning composition of claim 7, which when mixed with an aqueous medium, has a pH of at least about 9.

11. A cleaning composition as defined in claim 7 wherein the detergent builder is sodium tetrahydroxysuccinate.