IP Library Granted Patent US 7,906,474
Granted Patent B2
US 7,906,474 · App. 12/521,827 · Granted Mar 15, 2011

Alkoxylate blend surfactants

Assignee: Dow Global Technologies LLC
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,906,474
App. No.
12/521,827
Granted
Mar 15, 2011
Kind
B2
Abstract

Surfactant compositions that include one or more nonionic surfactants derived from seed oils and having a mixture of at least 8, 10 and 12 carbon atom linear alkyl moieties find use in a number of end use applications as substitutes for petroleum derived surfactants.

Claims (43)

1. A surfactant composition comprising at least one nonionic surfactant represented by formula (I)

R—O—(C 3 H 6 O) x (C 2 H 4 O) y —H  (I)

wherein x is a real number within a range of from 0.5 to less than 4, y is a real number within a range of from 2 to 10, and R is a mixture of seed-oil based linear alkyl moieties with an alkyl moiety distribution as follows wherein each wt % is based upon weight of all alkyl moieties present in the distribution and all wt % for each distribution total 100 wt %:

Carbon Atoms in Alkyl Moiety

Amount

C 6

 0 wt %-40 wt %

C 8

20 wt %-40 wt %

C 10

20 wt %-45 wt %

C 12

10 wt %-45 wt %

C 14

 0 wt %-40 wt %

C 16 -C 18

 0 wt %-15 wt %

2. The composition of claim 1 wherein x is a real number less than or equal to 3.

3. The composition of claim 1 , wherein x is a real number within a range of from 2-3.

4. The composition of claim 1 , wherein x is less than y.

5. The composition of claim 1 , wherein y is greater than or equal to 2 times x.

6. The composition of claim 1 , wherein x is from 2.5 to 3, and the alkyl moiety is as follows:

Carbon Atoms in Alkyl Moiety

Amount

C 6

 0-36%

C 8

22-40%

C 10

27-44%

C 12

14-35%

C 14

 5-13%

C 16 -C 18

0-5%

7. The composition of claim 1 , whereby the composition has a pour point of less than 15° C.

8. The composition of claim 1 , whereby the composition has a critical micelle concentration in de-ionized water of less than about 200 ppm.

9. The composition of claim 1 , wherein a 0.05 wt. % solution of the composition in deionized water has a wetting time of less than about 50 seconds.

10. The composition of claim 1 , wherein a 0.1% solution of the composition in de-ionized water has a surface tension of less than 31 dynes/cm.

11. The composition of claim 1 , wherein the composition has a gel range of less than 20%.

12. A detergent or cleaner, comprising the composition of claim 1 in an amount within a range of from 1 weight percent to 99.1 weight percent, in each case based on total weight of the detergent or cleaner.

13. The detergent or cleaner of claim 12 , further comprising an additive and de-ionized water.

Assignments (2)
CHANGE OF NAME Recorded Feb 4, 2011
From: VARINEAU, PIERRE T.; WEBER, KARA S.; THOMPSON, KIRK R.; SANDERS, AARON W.
To: DOW GLOBAL TECHNOLOGIES LLC
Reel/Frame 025746/0113 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 4, 2009
From: VARINEAU, PIERRE T.; WEBER, KARA S.; THOMPSON, KIRK R.; SANDERS, AARON W.
To: DOW GLOBAL TECHNOLOGIES INC.
Reel/Frame 023194/0427 →
Continuity (2)
Provisional Application 60879876 · Jan 11, 2007
Related Publication 20100081607A1 · Apr 1, 2010