Dimensionally stable phase change material and a continuous process for making same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09K-005/00
C09K-005/06
출원번호
US-0000376
(2016-01-19)
등록번호
US-10125297
(2018-11-13)
발명자
/ 주소
Lentz, Carl M.
Virgallito, Teresa T.
Lawson, Jerry K.
출원인 / 주소
Microtek Laboratories, INC.
대리인 / 주소
FisherBroyles, LLP
인용정보
피인용 횟수 :
0인용 특허 :
4
초록▼
Methods for producing a dimensionally stable phase change material (PCM), and dimensionally stable PCMs are disclosed. The methods include providing a porous base material, mixing a phase change material having a polar functional group with a substance that increases the polar attraction of the phas
Methods for producing a dimensionally stable phase change material (PCM), and dimensionally stable PCMs are disclosed. The methods include providing a porous base material, mixing a phase change material having a polar functional group with a substance that increases the polar attraction of the phase change material for the porous base material to form a mixture thereof; and, thereafter, mixing the mixture with the porous base material until a selected saturation of phase change material in the porous base material is reached. The methods may include filtering the porous base material after the selected saturation is reached to form a cake of dimensionally stable PCM and, thereafter, reducing the size of the dimensionally stable PCM to an average mean particle size of about 10 to about 50 μm, or more preferably 20 to 30 μm.
대표청구항▼
1. A method for producing a dimensionally stable phase change material, the method comprising: providing porous particles;mixing a phase change material having a polar functional group with a substance that increases the polar attraction of the phase change material for the porous particles to form
1. A method for producing a dimensionally stable phase change material, the method comprising: providing porous particles;mixing a phase change material having a polar functional group with a substance that increases the polar attraction of the phase change material for the porous particles to form a mixture thereof; andmixing the mixture with the porous particles until a selected saturation of the mixture is impregnated within the pores of the porous particles. 2. The method of claim 1, further comprising filtering the porous particles after mixing with the mixture to form a cake of dimensionally stable phase change material particles. 3. The method of claim 2, further comprising reducing the size of the dimensionally stable phase change material particles to an average mean particle size of about 20 to about 50 μm. 4. The method of claim 1, further comprising adding one or more Lewis acids and/or Lewis bases to the phase change material before mixing with the porous particles. 5. The method of claim 2, further comprising introducing a filtrate, from the filtering of the porous particles after mixing with the mixture, into subsequent mixing of porous particles with the mixture. 6. The method of claim 1, further comprising heating, without vacuum, while mixing the porous particles with the mixture to impregnate the mixture within the pores of the porous particles. 7. The method of claim 1, wherein mixing of the phase change material and the substance that increases the polar attraction of the phase change material includes mixing equal parts thereof. 8. The method of claim 1, wherein the polar functional group of the phase change material includes one or more of an alcohol, glycol, ketone, ester, diesters, carboxylic acid, anhydride, epoxide, amine, nitrile, carbonate, and amide. 9. The method of claim 1, wherein the porous particles comprise expanded perlite. 10. The method of claim 1, wherein the phase change material comprises methyl palmitate. 11. The method of claim 1, wherein the substance that increases the polar attraction of the phase change material comprises vinyl acetate. 12. The method of claim 11, wherein the substance that increases the polar attraction of the phase change material comprises an ethylene-vinyl acetate copolymer resin. 13. The method of claim 3, wherein the dimensionally stable phase change material particles have a maximum of 2% free phase change material leakage and a minimum enthalpy of 125 J/g as measured by differential scanning calorimetry. 14. The method of claim 1, further comprising, after the selected saturation of the modified phase change material in the porous substrate is reached, emulsifying the mixture until an average mean particle size is within about 10 to about 50 μm.
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이 특허에 인용된 특허 (4)
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