IP Library › Granted Patent US 10,150,936
Granted Patent B2
US 10,150,936 · App. 15/513,654 · Granted Dec 11, 2018

Branched biodegradable low foam nonionic surfactants

Inventors: Wanglin Yu (Freeport, TX); Kara S. Weber (Freeport, TX); Jan E. Shulman (Collegeville, PA); John Hayes (Collegeville, PA)
Assignees: Dow Global Technologies LLC; Rohm and Haas Company
C11D1/722C07C43/10C08G65/2609C11D1/72C11D3/0026
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Quick Facts
Patent No.
US 10,150,936
App. No.
15/513,654
Granted
Dec 11, 2018
Kind
B2
Abstract

A surfactant of structure (I) is useful as a biodegradable low foaming surfactant: where m is a value in a range of 3 to 10, n is a value in a range of 5 to 20 and z is a value in a range of 10 to 25.

Claims (7)

1. A surfactant having the following structure (I):

where m is a value in a range of 3 to 10, n is a value in a range of 5 to 20 and z is a value in a range of 5 to 30.

2. The surfactant of claim 1 , further characterized by m being 5, n being in a range of 9 to 15 and z being in a range of 5 to 25.

3. The surfactant of claim 1 , further characterize by the ratio of n to z being one or less.

4. The surfactant of claim 1 , further characterized by m being 5, n being a value in a range of 5 to 9 and z being a value in a range of 10 to 25.

5. A method of using the surfactant of any previous claim, the method comprising placing a detergent composition containing the surfactant in an automatic dishwasher.

6. The surfactant of claim 1 , further characterized by m being 5, n being a value in a range of 10 to 15 and z being a value in a range of 10 to 25.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 1, 2018
From: YU, WANGLIN; WEBER, KARA S.
To: DOW GLOBAL TECHNOLOGIES LLC
Reel/Frame 047383/0977 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 1, 2018
From: SHULMAN, JAN E.; HAYES, JOHN
To: ROHM AND HAAS COMPANY
Reel/Frame 047383/0997 →
Continuity (2)
Provisional Application 62054402 · Sep 24, 2014
Related Publication 20170283742A1 · Oct 5, 2017
Cited By (2)
US 12,559,700 US 12,584,097