Ultrasonic treatment chamber for preparing emulsions
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01F-003/08
B01F-011/02
출원번호
US-0150760
(2011-06-01)
등록번호
US-8143318
(2012-03-27)
발명자
/ 주소
Wenzel, Scott W.
Ahles, John Glen
Ehlert, Thomas David
Janssen, Robert Allen
Koenig, David William
Rasmussen, Paul Warren
Roffers, Steve
Zhuang, Shiming
출원인 / 주소
Kimberly-Clark Worldwide, Inc.
대리인 / 주소
Armstrong Teasdale LLP
인용정보
피인용 횟수 :
3인용 특허 :
160
초록▼
An ultrasonic mixing system having a treatment chamber in which at least two separate phases can be mixed to prepare an emulsion is disclosed. Specifically, at least one phase is a dispersed phase and one phase in a continuous phase. The treatment chamber has an elongate housing through which the ph
An ultrasonic mixing system having a treatment chamber in which at least two separate phases can be mixed to prepare an emulsion is disclosed. Specifically, at least one phase is a dispersed phase and one phase in a continuous phase. The treatment chamber has an elongate housing through which the phases flow longitudinally from a first inlet port and a second inlet port, respectively, to an outlet port thereof. An elongate ultrasonic waveguide assembly extends within the housing and is operable at a predetermined ultrasonic frequency to ultrasonically energize the phases within the housing. An elongate ultrasonic horn of the waveguide assembly is disposed at least in part intermediate the inlet and outlet ports, and has a plurality of discrete agitating members in contact with and extending transversely outward from the horn intermediate the inlet and outlet ports in longitudinally spaced relationship with each other. The horn and agitating members are constructed and arranged for dynamic motion of the agitating members relative to the horn at the predetermined frequency and to operate in an ultrasonic cavitation mode of the agitating members corresponding to the predetermined frequency and the phases being mixed in the chamber.
대표청구항▼
1. A method for preparing an emulsion using an ultrasonic mixing system, the method comprising: introducing a first phase into a first inlet port of an elongate housing of a treatment chamber at a flow rate of from about 1 gram per minute to about 100,000 grams per minute;introducing a second phase
1. A method for preparing an emulsion using an ultrasonic mixing system, the method comprising: introducing a first phase into a first inlet port of an elongate housing of a treatment chamber at a flow rate of from about 1 gram per minute to about 100,000 grams per minute;introducing a second phase into a second inlet port of the elongate housing of the treatment chamber at a flow rate of from about 1 gram per minute to about 100,000 grams per minute;ultrasonically activating the treatment chamber at a predetermined frequency with an elongate ultrasonic waveguide assembly extending longitudinally within the interior space of the housing to mix the first and second phases, the waveguide assembly comprising an elongate ultrasonic horn disposed at least in part intermediate the first and second inlet ports and an outlet port of the housing spaced longitudinally from the first and second inlet ports and having an outer surface located for contact with the first and second phases flowing within the housing from the first and second inlet ports to the outlet port, and a plurality of discrete agitating members in contact with and extending transversely outward from the outer surface of the horn intermediate the first and second inlet ports and the outlet port in longitudinally spaced relationship with each other, the agitating members and the horn being constructed and arranged for dynamic motion of the agitating members relative to the horn upon ultrasonic vibration of the horn at the predetermined frequency and to operate in an ultrasonic cavitation mode of the agitating members corresponding to the predetermined frequency. 2. The method as set forth in claim 1 wherein the emulsion is selected from the group consisting of oil-in-water emulsions, water-in-oil emulsions, water-in-oil-in-water emulsions, oil-in-water-in-oil emulsions, water-in-silicone emulsions, water-in-silicone-in-water emulsions, glycol-in-silicone emulsions, and high internal phase emulsions. 3. The method as set forth in claim 2 wherein the first phase and second phase are independently selected from the group consisting of an oil phase, a water phase, a silicone phase, a glycol phase, and combinations thereof. 4. The method as set forth in claim 2 wherein one of the first phase and second phase is an oil phase and the oil phase comprises from about 1% (by total weight of oil phase) to about 80% (by total weight of oil phase) oil. 5. The method as set forth in claim 4 wherein the oil is selected from the group consisting of natural oil, synthetic oil, and combinations thereof. 6. The method as set forth in claim 2 further comprising introducing a third phase via a third inlet port into the interior space of the housing, the third phase being selected from the group consisting of an oil phase, a water phase, a silicone phase, a glycol phase, and combinations thereof. 7. The method as set forth in claim 1 wherein at least one of the first phase and the second phase are heated prior to being introduced to the interior space of the housing. 8. The method as set forth in claim 1 wherein the first and second phases are ultrasonically mixed using the predetermined frequency being in a range of from about 20 kHz to about 40 kHz. 9. The method as set forth in claim 1 wherein at least one of the first and second phases further comprises a surfactant. 10. The method as set forth in claim 9 wherein the surfactant is selected from the group consisting of nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, and combinations thereof. 11. The method as set forth in claim 1 wherein at least one of the first and second phases further comprises an antioxidant. 12. The method as set forth in claim 11 wherein the antioxidant is selected from the group consisting of butylated hydroxytoluene, butylated hydroxyanisole, ceramides, ceramide derivatives, and combinations thereof. 13. The method as set forth in claim 1 wherein at least one of the first and second phases further comprises a compound selected from the group consisting of humectants, chelating agents, preservatives, thickeners, and combinations thereof. 14. The method as set forth in claim 13 wherein the thickener is selected from the group consisting of cellulosic thickeners, gums, acrylic based polymers, acid-sensitive thickeners, and base-sensitive thickeners.
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