IP Library Granted Patent US 8,814,950
Granted Patent B2
US 8,814,950 · App. 13/129,433 · Granted Aug 26, 2014

Detergent compositions utilizing hydrophobically modified polymer

Inventors: Ponisseril Somasundaran (Nyack, NY); Yajuan Li (Shanghai, CN)
Assignee: The Trustees of Columbia University in the City of New York
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Quick Facts
Patent No.
US 8,814,950
App. No.
13/129,433
Granted
Aug 26, 2014
Kind
B2
Abstract

Embodiments of the invention relate to a detergent composition including a poly(maleic acid/vinyl octyl ether) (PMAOVE) hydrophobically modified polymer; and a heavy duty liquid detergent. In addition, embodiments relate to a method of cleaning a substrate, including contacting a substrate with a poly(maleic acid/vinyl octyl ether) (PMAOVE) hydrophobically modified polymer solution.

Claims (27)

1. A detergent composition, comprising:

a poly(maleic acid/vinyl octyl ether) (PMAOVE) hydrophobically modified polymer; and

a heavy duty liquid detergent;

wherein the detergent composition is such that an aqueous solution comprising 1 g/L of substantially unaged oleic acid and having a detergent composition concentration sufficient to provide at least about 500 ppm of the heavy duty liquid detergent in the solution and at least about 2500 ppm of the polymer in the solution has a turbidity of about 10 or less.

2. The detergent composition of claim 1 , wherein the PMAOVE hydrophobically modified polymer comprises monomers of structure:

wherein R is an octyl chain.

3. The detergent composition of claim 1 , wherein the heavy duty liquid detergent comprises one or more surfactants and one or more polymers.

4. The detergent composition of claim 1 , wherein the PMAOVE comprises about 1-10 wt % of the detergent composition.

5. The detergent composition of claim 1 , wherein the PMAOVE comprises about 5-25 wt % of the detergent composition.

6. The detergent composition of claim 1 , wherein the PMAOVE comprises about 25-75 wt % of the detergent composition.

7. The detergent composition of claim 1 , wherein the PMAOVE comprises about 60-99 wt % of the detergent composition.

8. The detergent composition of claim 1 , wherein the detergent composition is such that an aqueous solution comprising 1 g/L of substantially unaged oleic acid and having a detergent composition concentration sufficient to provide at least about 500 ppm of the heavy duty liquid detergent in the solution and at least about 2500 ppm of the polymer in the solution has a turbidity that is equal to or less than about 42% of the turbidity in a corresponding solution comprising 1 g/L of substantially unaged oleic acid and having about 0 ppm of the polymer and about 5000 ppm of the heavy duty liquid detergent.

9. The detergent composition of claim 1 , wherein the detergent composition is such that an aqueous solution comprising 1 g/L of substantially unaged oleic acid and having a detergent composition concentration sufficient to provide at least about 500 ppm of the heavy duty liquid detergent in the solution and about 2500 ppm of the polymer in the solution has a turbidity that is equal to or less than about 56% of the turbidity in a corresponding solution comprising 1 g/L of substantially unaged oleic acid and having about 0 ppm of the heavy duty liquid detergent and about 1000 ppm of the polymer.

10. A method of cleaning a substrate, comprising:

contacting a substrate with a detergent composition comprising

poly(maleic acid/vinyl octyl ether) (PMAOVE) hydrophobically modified polymer solution; and

a heavy duty liquid detergent;

wherein the contacting is sufficient to at least partially remove one or more stains, and

wherein the detergent composition is such that an aqueous solution comprising 1 g/L of substantially unaged oleic acid having a detergent composition concentration sufficient to provide at least about 500 ppm of the heavy duty liquid detergent in the solution and at least about 2500 ppm of the polymer in the solution has a turbidity of about 10 or less.

11. The method of claim 10 , further comprising agitating the substrate in contact with the detergent composition.

12. The method of claim 11 , wherein agitating comprises one or more of shaking, mixing, spinning, rotating, vibrating or pressing.

13. The method of claim 10 , wherein contacting comprises pressing using a pre-spotter apparatus.

14. A detergent composition, comprising:

a poly(maleic acid/vinyl octyl ether) (PMAOVE) hydrophobically modified polymer, comprising monomers of the structure:

wherein R is an octyl chain; and,

a heavy duty liquid detergent;

wherein the detergent composition is such that an aqueous solution comprising 1 g/L of substantially unaged oleic acid and having a detergent composition concentration sufficient to provide at least about 500 ppm of the heavy duty liquid detergent in the solution and at least about 2500 ppm of the polymer in the solution has a turbidity of about 10 or less.

Assignments (2)
CONFIRMATORY LICENSE Recorded Aug 18, 2011
From: COLUMBIA UNIVERSITY NEW YORK MORNINGSIDE
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 026772/0046 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 3, 2011
From: SOMASUNDARAN, PONISSERIL; LI, YAJUAN
To: TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK, THE
Reel/Frame 026700/0912 →
Continuity (2)
Provisional Application 61199482 · Nov 17, 2008
Related Publication 20110259361A1 · Oct 27, 2011