Granted Patent B2

US 8,802,729 · App. 13/833,539 · Granted Aug 12, 2014

Inventors: Gyorgyi Fenyvesi (Wilmington, DE); Melissa Joerger (Newark, DE); Robert Miller (Wilmington, DE); Raja Hari Poladi (Bear, DE); Ann Wehner (Hockessin, DE)

Assignee: DuPont Tate & Lyle Bio Products Company, LLC

Abstract

Claims (20)

1. A detergent composition comprising 1,3-propanediol and an enzyme, wherein the composition is biodegradable and wherein the 1,3-propanediol is biologically derived and enhances the stability of the enzyme.

2. The composition of claim 1 , wherein the weight percent of enzyme in the composition is between about 0.0001% and about 5.0%.

3. The composition of claim 1 , wherein the enzyme is selected from the group consisting of amylase, protease, Alcalase®, and Termamyl®.

4. The composition of claim 1 , further comprising borate or boric acid.

5. The composition of claim 4 , wherein the weight percent of borate or boric acid in the composition is less than about 5.0%.

6. The composition of claim 1 , wherein the composition is substantially free of borate or boric acid.

7. The composition of claim 1 , wherein the 1,3-propanediol has 50% biobased carbon.

8. The composition of claim 1 , wherein the 1,3-propanediol has 100% biobased carbon.

9. The composition of claim 1 , wherein said detergent composition is selected from the group consisting of dish-washing detergents, laundry detergents, clothing softeners, laundry bar soaps and car wash detergents.

10. The composition of claim 1 , wherein the composition has a lower anthropogenic CO 2 emission profile as compared to a biodegradable composition comprising 1,3-propanediol with a bio-based carbon content of 0%.

11. A method of enhancing enzyme stability in a detergent composition containing an enzyme, the method comprising the step of providing a detergent composition containing an enzyme, and combining 1,3-propanediol to the detergent composition, wherein the composition is biodegradable and wherein the 1,3-propanediol is biologically derived and enhances the stability of the enzyme.

12. The method of claim 11 , wherein the weight percent of enzyme in the composition is between about 0.0001% and about 5.0%.

13. The method of claim 11 , wherein the enzyme is selected from the group consisting of amylase, protease, Alcalase®, and Termamyl®.

14. The method of claim 11 , further comprising borate or boric acid.

15. The method of claim 14 , wherein the weight percent of borate or boric acid in the composition is less than about 5.0%.

16. The method of claim 11 , wherein the composition is substantially free of borate or boric acid.

17. The method of claim 11 , wherein the 1,3-propanediol has 50% biobased carbon.

18. The method of claim 11 , wherein the 1,3-propanediol has 100% biobased carbon.

19. The method of claim 11 , wherein said detergent composition is selected from the group consisting of dish-washing detergents, laundry detergents, clothing softeners, laundry bar soaps and car wash detergents.

20. The method of claim 11 , wherein the composition has a lower anthropogenic CO 2 emission profile as compared to a biodegradable composition comprising 1,3-propanediol with a bio-based carbon content of 0%.

Assignments (4)

Continuity (16)