IP Library › Granted Patent US 11,214,533
Granted Patent B2
US 11,214,533 · App. 16/621,831 · Granted Jan 4, 2022

Readily biodegradable alkoxylate mixtures

Inventors: Sung-Yu Ku (Lake Jackson, TX); Wanglin Yu (Lake Jackson, TX); Christopher S. Letko (Lake Jackson, TX); Stephen W. King (Freeport, TX); Michael A. Brammer (Freeport, TX)
Assignee: Dow Global Technologies LLC
C07C43/11C11D1/722
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Quick Facts
Patent No.
US 11,214,533
App. No.
16/621,831
Granted
Jan 4, 2022
Kind
B2
Abstract

A mixture of octanols, nonanols and decanols is useful for the preparation of alkoxylates, which alkoxylates may be used as surfactants, which surfactants have surprisingly good biodegradability.

Claims (10)

1. An alkoxylate mixture comprising compounds of the following formula:

wherein R1 is either methyl or ethyl or a combination thereof, R2 is either hydrogen, methyl or ethyl or any combination thereof, wherein x is 3 or 4, y is 1 or 2, m has an average value of from 1 to 15, and n has an average value of 0 to 40, with the proviso that the mixture includes a compound wherein x+y is 4, a compound wherein x+y is 5 and a compound wherein x+y is 6, wherein the alkoxylate mixture comprises 10 to 40 mole percent of compounds with x+y=4, 20 to 80 mole percent of compounds with x+y=5, and 10 to 40 mole percent of compounds with x+y=6, wherein a total mole percent is 100.

2. An alkoxylate mixture of claim 1 wherein R2 is hydrogen or methyl, x is 3 or 4, y is 1 or 2, and m has an average value of from 1 to 15.

3. An alkoxylate mixtures of claim 1 wherein R1 is methyl, x is 3 or 4, y is 1 or 2, and m has an average value of from 3 to 5.

4. An alkoxylate mixture of claim 1 wherein R1 is methyl, R2 is hydrogen, x is 3 or 4, y is 1 or 2, m has an average value of from 3 to 5, and n has an average value of 3 to 15.

5. An alkoxylate mixture of claim 1 wherein m is from 3 to 5 and n is from 3 to 40.

6. An alkoxylate mixture of claim 1 wherein m is 3 to 10, and n is from 1 to 40.

7. An alkoxylate mixture of claim 1 comprising 20 to 30 mole percent of compounds with x+y=4, 40 to 60 mole percent of compounds with x+y=5, and 20 to 30 mole percent of compounds with x+y=6, wherein the total mole percent is 100.

8. A cleaning composition comprising a mixture of claim 1 .

9. An alkoxylate mixture of claim 1 prepared by a process comprising the following steps, (1) conducting a cross aldol condensation of a mixture of butyraldehyde and valeraldehyde under reaction conditions sufficient to produce a corresponding mixture of enals; (2) hydrogenating the mixture of enals under reaction conditions sufficient to produce a mixture of alcohols; and (3) alkoxylating the mixture of alcohols in one or more stages under reaction conditions sufficient to produce the alkoxylate mixture.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2021
From: KU, SUNG-YU; YU, WANGLIN; LETKO, CHRISTOPHER S.; KING, STEPHEN W.; BRAMMER, MICHAEL A.
To: DOW GLOBAL TECHNOLOGIES LLC
Reel/Frame 058897/0103 →
Continuity (2)
Provisional Application 62526092 · Jun 28, 2017
Related Publication 20210139400A1 · May 13, 2021
Cited By (1)
US 12,600,691