Surfactants based on monounsaturated fatty alcohol derivatives
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A01N-025/00
A01N-025/30
C07C-305/10
C11D-001/14
출원번호
US-0770912
(2014-03-05)
등록번호
US-9695385
(2017-07-04)
국제출원번호
PCT/US2014/020890
(2014-03-05)
국제공개번호
WO2014/164156
(2014-10-09)
발명자
/ 주소
Allen, David R
Bernhardt, Randal J
Brown, Aaron
Dado, Gregory P
Dong, Xue Min
Gorman, Wilma
Masters, Ronald
Skelton, Patti
출원인 / 주소
STEPAN COMPANY
대리인 / 주소
Dilworth IP LLC
인용정보
피인용 횟수 :
0인용 특허 :
21
초록▼
Surfactant compositions comprising an alkoxylate, a sulfate, or ether sulfate of a C10-C12 monounsaturated alcohol are disclosed. The alkoxylate, sulfate, or ether sulfate may derive from undecylenic acid or undecylenic alcohol. Compared with their saturated analogs, the monounsaturated alkoxylates,
Surfactant compositions comprising an alkoxylate, a sulfate, or ether sulfate of a C10-C12 monounsaturated alcohol are disclosed. The alkoxylate, sulfate, or ether sulfate may derive from undecylenic acid or undecylenic alcohol. Compared with their saturated analogs, the monounsaturated alkoxylates, sulfates, and ether sulfates are less irritating, making them valuable for personal care, laundry, cleaners, and other household applications. Microscopy studies show that the alkoxylates, sulfates, and ether sulfates have favorable phase behavior over a wide range of actives levels, expanding opportunities for products with greater compaction. When combined with cationic surfactants, the alkoxylates, sulfates, and ether sulfates exhibit synergy, and they have improved solubility compared with their saturated analogs. The surfactants find value for the personal care, laundry and cleaning, emulsion polymerization, agricultural products, oilfield applications, and specialty foams industries.
대표청구항▼
1. A process which comprises reacting a composition comprising a monounsaturated C10-C12 alcohol with an alkoxylating agent, a sulfating agent, or an alkoxylating agent followed by a sulfating agent to make, respectively, an alkoxylate, a sulfate, or an ether sulfate. 2. The process of claim 1 where
1. A process which comprises reacting a composition comprising a monounsaturated C10-C12 alcohol with an alkoxylating agent, a sulfating agent, or an alkoxylating agent followed by a sulfating agent to make, respectively, an alkoxylate, a sulfate, or an ether sulfate. 2. The process of claim 1 wherein the monounsaturated C10-C12 alcohol or alkoxylate is reacted with sulfur trioxide in a falling-film reactor, followed by neutralization. 3. A process for making an internally monounsaturated C10-C12 alcohol sulfate or ether sulfate, the process comprising reacting a terminally monounsaturated C10-C12 alcohol or alkoxylate with sulfur trioxide in a falling-film reactor, followed by neutralization. 4. A composition comprising water and 1 to 99 wt. % of a surfactant, wherein the surfactant comprises an ether sulfate of the formula: CH2═CH—(CH2)9—O—(EO)n—SO4−M=wherein n is the average number of EO units and has a value from 1 to 5, and M is Na, K, Li, or NH4. 5. The composition of claim 4 wherein M is Na or NH4. 6. The composition of claim 4 wherein M is Na and n is 1 or 3. 7. The composition of claim 4 wherein M is NH4 and n is 1. 8. A composition comprising water and 1 to 99 wt. % of a surfactant comprising sulfates of undecylenic alcohol, wherein the surfactant comprises: (a) 40 to 60 wt. % of a monounsaturated C11 primary alcohol sulfate; and(b) 40 to 60 wt. % of a secondary hydroxyalkyl C11 primary alcohol sulfate. 9. The composition of claim 8 comprising 2 to 98 wt. % of the surfactant. 10. The composition of claim 8 wherein the surfactant further comprises 0.1 to 20 wt. % of sulfonated products. 11. The composition of claim 8 made by sulfating undecylenic alcohol with sulfur trioxide in a falling-film reactor, followed by neutralization.
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