Coarse-particle microcapsule preparation
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0813677
(2006-01-14)
|
등록번호 |
US-7575804
(2009-08-31)
|
우선권정보 |
DE-10 2005 002 411(2005-01-18) |
국제출원번호 |
PCT/EP06/000291
(2006-01-14)
|
§371/§102 date |
20070711
(20070711)
|
국제공개번호 |
WO06/077056
(2006-07-27)
|
발명자
/ 주소 |
- Lang Wittkowski, Gabriele
- Jahns, Ekkehard
- Steffen, Markus
|
출원인 / 주소 |
|
대리인 / 주소 |
Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
4 |
초록
▼
The present invention relates to a coarse-particled microcapsule preparation comprising microencapsulated latent heat accumulators and one or more polymeric binders, the ratio of surface area to volume of the particles obeying the following relationship: and to processes for its production and it
The present invention relates to a coarse-particled microcapsule preparation comprising microencapsulated latent heat accumulators and one or more polymeric binders, the ratio of surface area to volume of the particles obeying the following relationship: and to processes for its production and its use in heat exchangers and building materials.
대표청구항
▼
We claim: 1. A coarse-particled microcapsule preparation comprising one or more microencapsulated latent heat accumulator materials and one or more polymeric binders, the ratio of surface area to volume of the particles obeying the following relationship: 2. The coarse-particled microcapsule p
We claim: 1. A coarse-particled microcapsule preparation comprising one or more microencapsulated latent heat accumulator materials and one or more polymeric binders, the ratio of surface area to volume of the particles obeying the following relationship: 2. The coarse-particled microcapsule preparation according to claim 1, 90% by weight of the particles being greater than 500 μm. 3. The coarse-particled microcapsule preparation according to claim 1, the binder content, calculated as solid, being 1-40% by weight, based on the total weight of the coarse-particled microcapsule preparation. 4. The coarse-particled microcapsule preparation according to claim 1, the latent heat accumulator material being a lipophilic substance having a solid/liquid phase transition in the temperature range from-20 to 120° C. 5. The coarse-particled microcapsule preparation according to claim 1, the latent heat accumulator material being an aliphatic hydrocarbon compound. 6. The coarse-particled microcapsule preparation according to claim 1, the capsule wall being a thermosetting polymer. 7. The coarse-particled microcapsule preparation according to claim 1, the capsule wall being composed of from 10 to 100% by weight of one or more C1-C24-alkyl esters of acrylic and/or methacrylic acid (monomers I) from 0 to 80% by weight of a bifunctional or polyfunctional monomer (monomers II) which is insoluble or sparingly soluble in water and from 0 to 90% by weight of other monomers (monomers III), based in each case on the total weight of the monomers. 8. The coarse-particled microcapsule preparation according to claim 1, the binder polymer having film-forming properties under processing conditions. 9. The coarse-particled microcapsule preparation according to claim 1, the binder polymer having a glass transition temperature of from-60 to +150° C. 10. The coarse-particled microcapsule preparation according to claim 1, the binder polymer being synthesized from one or more ethylenically unsaturated monomers M by emulsion polymerization. 11. The coarse-particled microcapsule preparation according to claim 1, the binder polymer being a homopolymer of vinyl esters of aliphatic carboxylic acids or a copolymer of vinyl esters of aliphatic carboxylic acids with olefins and/or alkyl (meth)acrylates. 12. The coarse-particled microcapsule preparation according to claim 1, the binder polymer being a copolymer of styrene with acrylonitrile. 13. The coarse-particled microcapsule preparation according to claim 1, the coarse-particled preparation comprising 2-20% by weight, based on the total weight of the preparation, of graphite. 14. The coarse-particled microcapsule preparation according to claim 13, the graphite being expanded graphite. 15. A process for the production of coarse-particled microcapsule preparations according to claim 1, wherein the microcapsules are brought, together with the polymeric binder and water, into a coarse-particled form and, if appropriate, then dried. 16. The process for the production of coarse-particled microcapsule preparations according to claim 15, wherein the microcapsules are extruded together with the polymeric binder dispersion at temperatures in the range from 25 K below to 50 K above the glass transition temperature of the binder polymer and, if appropriate, then dried. 17. The process for the production of coarse-particled microcapsule preparations according to claim 16, wherein extrusion is effected at temperatures in the range from 60 to 110° C. 18. The process for the production of coarse-particled microcapsule preparations according to claim 15, wherein extrusion is effected through a cross or star die. 19. A heat exchanger, comprising the coarse-particled microcapsule preparation according to claim 1. 20. A building material, comprising the coarse-particled microcapsule preparation according to claim 1 and mineral or silicate binding building materials.
이 특허에 인용된 특허 (4)
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Jahns Ekkehard,DEX ; Reck Bernd,DEX, Application of microcapsules as latent heat accumulators.
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Andreas Kleinke DE; Thomas Kessler DE; Ekkehard Jahns DE, Temperature controlled radiation transmission material.
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Colvin David P. (Apex NC) Mulligan James C. (Raleigh NC), Thermal energy storage apparatus using encapsulated phase change material.
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Jahns,Ekkehard; Denu,Hans Jurgen; Pakusch,Joachim; Seibert,Horst; Schmidt,Marco, Use of microcapsules in gypsum plasterboards.
이 특허를 인용한 특허 (9)
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Dihora, Jiten Odhavji; Hasegawa, Jun, Conditioner compositions with increased deposition of polyacrylate microcapsules.
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Dihora, Jlten Odhavji; Hasegawa, Jun, Conditioner compositions with increased deposition of polyacrylate microcapsules.
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Dihora, Jiten Odhavji; Smets, Johan; Schwantes, Todd Arlin, Delivery particle.
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Dihora, Jiten Odhavji; Smets, Johan; Schwantes, Todd Arlin, Delivery particles.
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Kompalik, Dieter; Goepfert, Sebastian, Moldable mass containing graphite and phase change material, process for producing a molding from the mass, and production methods of using the molding.
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Dihora, Jiten Odhavji; Brown, Mark Anthony, Personal cleansing compositions with increased deposition of polyacrylate microcapsules.
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Dihora, Jiten Odhavji; Brown, Mark Anthony, Shampoo compositions with increased deposition of polyacrylate microcapsules.
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Dihora, Jiten Odhavji; Brown, Mark Anthony, Shampoo compositions with increased deposition of polyacrylate microcapsules.
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Bienerth, Holger; Eder, Klaus-Jürgen, Sheetlike structure or shaped article comprising latent heat storage media.
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