Methods and apparatus for mixing chemical components for the manufacture of polyurethane
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-044/34
B29B-007/80
B29K-105/00
B29K-105/04
B01F-015/02
B29K-075/00
출원번호
US-0437791
(2011-06-08)
등록번호
US-10046487
(2018-08-14)
국제출원번호
PCT/SG2011/000205
(2011-06-08)
§371/§102 date
20150422
(20150422)
국제공개번호
WO2012/169967
(2012-12-13)
발명자
/ 주소
Nguyen, Van Chinh
Hoong, Choon Min
Lee, Thiam Chye
출원인 / 주소
RIM Polymers Industries PTE., Ltd.
대리인 / 주소
Blank Rome LLP
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
Embodiments of the invention describe methods and apparatus for mixing chemical components in the manufacture of polyurethane foam. The chemical components include a polyol and different blowing agents. The blowing agents are injected directly into a mixing chamber (100) at different height levels a
Embodiments of the invention describe methods and apparatus for mixing chemical components in the manufacture of polyurethane foam. The chemical components include a polyol and different blowing agents. The blowing agents are injected directly into a mixing chamber (100) at different height levels according to their boiling points. The mixing chamber allows continuous discharge of the mixture into a static mixer (400) for further mixing before being stored into a storage tank (600). The blowing agents are chemical compounds selected from the group consisting of hydrocarbon-containing compounds, hydrofluorocarbon-containing compounds or hydrofluoroolefin-containing compounds.
대표청구항▼
1. A mixing apparatus for the manufacture of polyurethane foam, the mixing apparatus comprising: an impingement mixing chamber including a first nozzle;a polyol injected via the first nozzle into the mixing chamber, wherein the polyol has a boiling point of about 200 to 250 degrees Celsius;a second
1. A mixing apparatus for the manufacture of polyurethane foam, the mixing apparatus comprising: an impingement mixing chamber including a first nozzle;a polyol injected via the first nozzle into the mixing chamber, wherein the polyol has a boiling point of about 200 to 250 degrees Celsius;a second nozzle positioned at a lower height level than the first nozzle;a first blowing agent injected via the second nozzle into the mixing chamber, wherein the first blowing agent is a hydrocarbon-containing compound having a boiling point of about 40 to 60 degrees Celsius;a third nozzle positioned at a lower height level than the second nozzle;a second blowing agent injected via the third nozzle into the mixing chamber, wherein the second blowing agent is a hydrofluorocarbon-containing compound having a boiling point of about 20 to 40 degrees Celsius;a fourth nozzle positioned at a lower height level than the third nozzle;a third blowing agent injected via the fourth nozzle into the mixing chamber, wherein the third blowing agent is a hydrofluorocarbon-containing compound having a boiling point of about 0 to 20 degrees Celsius;a fifth nozzle positioned at a lower height level than the fourth nozzle;a fourth blowing agent injected via the fifth nozzle into the mixing chamber; wherein the fourth blowing agent is a hydrocarbon-containing compound, hydrofluorocarbon-containing compound or hydrofluoroolefin-containing compound having a boiling point of about −30 to 0 degrees Celsius; andan outlet at the top of the mixing chamber, wherein the injected polyol and the first, the second, the third, and the fourth blowing agents react to form a mixture that is discharged through the outlet,wherein the first, the second, the third, the fourth and the fifth nozzles are positioned at the sidewall of the mixing chamber and at different positions along a circumferential direction defined by the sidewall. 2. The mixing apparatus of claim 1, wherein the first, the second, the third, the fourth and the fifth nozzles are positioned substantially radially equidistant from each other. 3. The mixing apparatus of claim 1, wherein the first, the second, the third, the fourth and the fifth nozzles axes are directed towards the centre axis of the mixing chamber. 4. The mixing apparatus of claim 1 further comprising: a static mixer coupled to the outlet of the mixing chamber, wherein the static mixer allows additional mixing of the mixture discharged from the mixing chamber. 5. The mixing apparatus of claim 4 further comprising: a storage tank coupled to the static mixer to store the mixture discharged from the static mixer. 6. The mixing apparatus of claim 1 further comprising: a plurality of container modules coupled to the mixing chamber, wherein the plurality of container modules maintain the polyol and the first, the second, the third, and the fourth blowing agents in a liquid phase. 7. A method of mixing for the manufacture of polyurethane foam, the method comprising: injecting a stream of polyol having a boiling point of about 200 to 250 degrees Celsius into a mixing chamber via a first nozzle;injecting a stream of first blowing agent into the mixing chamber via a second nozzle positioned at a lower height level than the first nozzle, wherein the first blowing agent is a hydrocarbon-containing compound having a boiling point of about 40 to 60 degrees Celsius;injecting a stream of second blowing agent into the mixing chamber via a third nozzle positioned at a lower height level than the second nozzle, wherein the second blowing agent is a hydrofluorocarbon-containing compound having a boiling point of about 20 to 40 degrees Celsius;injecting a stream of third blowing agent into the mixing chamber via a fourth nozzle positioned at a lower height than the third nozzle, wherein the third blowing agent is a hydrofluorocarbon-containing compound having a boiling point of about 0 to 20 degrees Celsius;injecting a stream of fourth blowing agent into the mixing chamber via a fifth nozzle positioned at a lower height level than the fourth nozzle, wherein the fourth blowing agent is a hydrocarbon-containing compound, hydrofluorocarbon-containing compound or hydrofluoroolefin-containing compound having a boiling point of about −30 to 0 degrees Celsius, wherein a portion of each stream of polyol and the first, the second, the third, and the fourth blowing agent mixes with the other to form a mixture; anddischarging the mixture from the mixing chamber. 8. The method of claim 7, wherein the polyol and the first, the second, the third, and the fourth blowing agents are injected into the mixing chamber at substantially the same time. 9. The method of claim 7, wherein the polyol and the first, the second, the third and the fourth blowing agents are injected into the mixing chamber in a liquid phase. 10. The method of claim 7, wherein each stream of polyol and the first, the second, the third, and the fourth blowing agent is continuously injected into the mixing chamber. 11. The method of claim 7, further comprising: delivering the discharged mixture from the mixing chamber to a static mixer; and mixing the discharged mixture in the static mixer. 12. The method of claim 7, further comprising: adding an isocyanate to the discharged mixture to form polyurethane foam. 13. The method of claim 7, wherein about 1 to about 15 parts of each of the blowing agents are mixed with about 100 parts of the polyol. 14. The method of claim 7, wherein the minimum flow rate of the injected polyol is about 200 gram/second. 15. The method of claim 14, wherein the minimum flow rate of each of the injected blowing agents is about 2 gram/second.
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이 특허에 인용된 특허 (7)
Boden Heinrich (Leverkusen DEX) Rentz Bernhard (Leverkusen DEX) Niggemann Johann (Leverkusen DEX) Just Gerhard (Leichlingen DEX), Method and a device for producing shaped articles from a multi-component reaction mixture.
McLaughlin Andy I. (Meridian MS) Donald Richard L. (Meridian MS) Blanpied Robert H. (Meridian MS) Butkus Robert J. (Meridian MS), Method for producing rigid foams and products produced therefrom.
Ferrero-Heredia Monica A. (East Greenbush NY) Day James (Scotia NY) Gaines ; Jr. George L. (Scotia NY), Method of preparing polyurethane foam of low thermal conductivity.
Bartlett ; Jr. Henry Walker, Open-loop apparatus for producing a controlled blend of polyol and blowing agent for use in the manufacture of polyurethane foam.
Hentschel Klaus (Kalmthout BEX) Bittner Friedrich (Bad Soden DEX) Sohreyer Gerd (Hanau DEX), Process for the production of suspensions or solutions of cyanuric chloride in water.
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