# US 5,344,581 A · Process for increasing the bleaching efficiency of an inorganic persalt using an acetylated mixture of sorbital and mammitol

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- Number: US 5,344,581 A
- Document ID: US5344581A
- Status: Granted
- Kind: A
- Application number: 07/922,690
- Filed: 1992-07-30
- Granted: 1994-09-06
- Earliest claimed: 1991-07-31
- Assignees: Ausimont S.p.A.
- Inventors: Fulvio Burzio; Roland Beck; Julio Mentech; Myriam Elseviers
- Web page: https://patentgrep.com/patent/US5344581A

## CPC

- A61K 8/22: Peroxides; Oxygen; Ozone
- A61K 8/375: {the alcohol moiety containing more than one hydroxy group}
- A61Q 5/08: Preparations for bleaching the hair
- C11D 3/221: {Mono, di- or trisaccharides or derivatives thereof}
- C11D 3/3912: {derived from saccharides}
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

The invention relates to a process for increasing the bleaching efficiency of an inorganic persalt and to bleaching and/or detergent compositions suitable for removing stains from textiles or from other products such as paper, cellulose, cork, hair etc. These bleaching and/or detergent and/or anti-incrusting compositions comprise an inorganic persalt and an activating agent comprising an acetylated mixture of sorbitol and mannitol wherein the molar ratio between the bleaching activator and the persalt is usually from 10:90 to 50:50. The bleaching activator having an acetylation degree ranging from 1 to 6 and the weight ratio of sorbitol to mannitol in the mixture is within the range of from 2.5:1 to 4:1.

## Claims

### Claim 1

Bleaching and/or detergent and/or anti-incrusting compositions comprising a bleaching activating agent and an inorganic persalt wherein the molar ratio between the activating agent and the persalt is 10:90 to 50:50 and the activating agent comprises a mixture of hexa-acetyl sorbitol and hexa-acetyl mannitol in a weight ratio varying between 2.5:1 and 4.0:1.

### Claim 2 (depends on 1)

The composition of claim 1 wherein the weight ratio between hexa-acetyl sorbitol and hexa-acetyl mannitol is about 3 to 1.

### Claim 3 (depends on 1)

The composition of claim 1 in which the activating agent mixture is obtained from hydrogenated corn syrup having a fructose content ranging from 42 percent to 55 percent or is obtained from hydrogenated invert sugar.

### Claim 4 (depends on 1)

The composition of claim 1 wherein the activating agent is prepared by acetylating a mixture of sorbitol and mannitol.