Liquid detergents containing a peptide trifluoromethyl ketone

• US 5,840,678 A
• Filed: 09/25/1996
• Issued: 11/24/1998
• Est. Priority Date: 08/14/1992
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Thoen, Christiaan Arthur J.K., McIver, John McMillan, Labeque, Regine
• Primary Examiner(s): Fries, Kery A
• Application Number:
  US08/719,665
• Time in Patent Office: 790 Days
• Field of Search: 510/320, 510/321, 510/392, 510/393, 510/530, 510/226, 435/188
• US Class Current: 514/21.8
• CPC Class Codes: C11D 3/32 Amides; Substituted amides
• CPC Class Codes: C11D 3/3719 Polyamides or polyimides
• CPC Class Codes: C11D 3/38663 Stabilised liquid enzyme compositions

Abstract

Aqueous liquid detergent compositions are described which comprise a proteolytic enzyme wherein the proteolytic activity is reversibly inhibited by a peptide trifluoromethyl ketone.

Claims

1. A liquid aqueous detergent composition comprising:

(a) from 1% to 80% of a detersive surfactant;

(b) from 0.0001% to 1.0% of active proteolytic enzyme or mixtures thereof; and

(c) from 0.00001% to 5% of a peptide trifluoromethyl ketone wherein the peptide trifluoromethyl ketone is selected from the group consisting of trifluoromethyl ketones having 4 amino acids wherein the C terminal end is selected from the group consisting of Gly-Ala-Leu(trifluoromethyl) and Gly-Ala-Phe(trifluoromethyl).

2. The liquid aqueous detergent composition according to claim 1 wherein the peptide trifluoromethyl ketone is selected from the group consisting of Xaa-Phe-Gly-Ala-Leu(trifluoromethyl) (SEQ ID NO:

1), Xaa-Phe-Gly-Ala-Phe(trifluoromethyl) (SEQ ID NO;

     2), having a N-terminal end protected carbamate or urea thereof.

3. The liquid aqueous detergent composition according to claim 2 wherein the carbamate group is a methyl carbamate group.

4. The liquid aqueous detergent composition according to claim 2 wherein the urea group is a methyl urea group.

5. The liquid aqueous detergent composition according to claim 1 wherein the composition comprises from 0.0005% to 0.2% of the active proteolytic enzyme or mixtures thereof.

6. The liquid aqueous detergent composition according to claim 1 wherein the proteolytic enzyme is selected from the group consisting of bacterial serine protelytic enzymes obtained from Bacillus subtilis, bacterial serine proteolytic enzymes obtained from Bacillus licheniformis and mixes therof.

7. The liquid aqueous detergent composition according to claim 2 wherein the proteolytic enzyme is selected from the group consisting of bacterial serine proteolytic enzymes ontained from Bacillus subtilis, bacterial serine proteolytic enzymes obtained from Bacillus lichenoformis and mixtures thereof.

8. The liquid aqueous detergent composition according to claim 1 wherein the composition further includes a performance enhancing amount of a detergent compatible second enzyme selected from the group consisting of lipase, amylase, cellulase, and mixtures thereof.

9. A liquid aqueous detergent composition comprising:

(a) from 1% to 80% of a detersive surfactant,

(b) from 0.0001% to 1.0% of active proteolytic enzyme or mixtures thereof; and

(c) from 0.00001% to 5% of a peptide trifluoromethyl ketone wherein the peptide trifluoromethyl ketone is selected from the group consisting of trifluoromethyl ketones having 5 amino acids wherein the C terminal end is selected from the group consisting of Gly-Ala-Leu(trifluoromethyl) and Gly-Ala-Phe(trifluoromethyl).

10. The liquid aqueous detergent composition according to claim 9 wherein the peptide trifluoromethyl ketone is selected from the group consisting of Xaa-Xaa-Phe-Gly-Ala-Leu(trifluoromethyl) (SEQ ID NO:

3), Xaa-Xaa-Phe-Gly-Ala-Phe(trifluoromethyl) (SEQ ID NO;

     4), having a N-terminal end protected carbamate or urea thereof.

11. The liquid aqueous detergent composition according to claim 10 wherein the carbamate group is a methyl carbamate group.

12. The liquid aqueous detergent composition according to claim 10 wherein the urea group is a methyl urea group.

13. The liquid aqueous detergent composition according to claim 9 wherein the proteolytic enzyme is selected from the group consisting of bacterial serine proteolytic enzymes obtained from Bacillus subtilis, bacterial serine proteolytic enzymes obtained from Bacillus licheniformis and mixtures thereof.

14. The liquid aqueous detergent composition according to claim 10 wherein the proteolytic enzyme is selected from the group consisting of bacterial serine proteolytic enzymes obtained from Bacillus subtilis, bacterial serine protelytic enzymes ontained from Bacillus licheniformis and mixtures thereof.