EP1590419A1 - Zusammensetzung zur kontrollierten temperierung durch phasenwechsel, deren herstellung und verwendung - Google Patents
Zusammensetzung zur kontrollierten temperierung durch phasenwechsel, deren herstellung und verwendungInfo
- Publication number
- EP1590419A1 EP1590419A1 EP03795937A EP03795937A EP1590419A1 EP 1590419 A1 EP1590419 A1 EP 1590419A1 EP 03795937 A EP03795937 A EP 03795937A EP 03795937 A EP03795937 A EP 03795937A EP 1590419 A1 EP1590419 A1 EP 1590419A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pcm
- container
- phase
- polymer
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
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- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Chemical class CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 1
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
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- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 1
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- 239000011258 core-shell material Substances 0.000 description 1
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- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 1
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 1
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 1
- 229940043276 diisopropanolamine Drugs 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 1
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical class CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 1
- DPUOLQHDNGRHBS-KTKRTIGZSA-N erucic acid Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-KTKRTIGZSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- LQJBNNIYVWPHFW-QXMHVHEDSA-N gadoleic acid Chemical compound CCCCCCCCCC\C=C/CCCCCCCC(O)=O LQJBNNIYVWPHFW-QXMHVHEDSA-N 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 229940074046 glyceryl laurate Drugs 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WZXYXXWJPMLRGG-UHFFFAOYSA-N hexadecyl benzenesulfonate Chemical class CCCCCCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 WZXYXXWJPMLRGG-UHFFFAOYSA-N 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical class OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- RZRNAYUHWVFMIP-UHFFFAOYSA-N monoelaidin Natural products CCCCCCCCC=CCCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-UHFFFAOYSA-N 0.000 description 1
- 229940043348 myristyl alcohol Drugs 0.000 description 1
- OOHAUGDGCWURIT-UHFFFAOYSA-N n,n-dipentylpentan-1-amine Chemical compound CCCCCN(CCCCC)CCCCC OOHAUGDGCWURIT-UHFFFAOYSA-N 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229960002446 octanoic acid Drugs 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- QUANRIQJNFHVEU-UHFFFAOYSA-N oxirane;propane-1,2,3-triol Chemical compound C1CO1.OCC(O)CO QUANRIQJNFHVEU-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000005588 protonation Effects 0.000 description 1
- 238000005956 quaternization reaction Methods 0.000 description 1
- 238000000646 scanning calorimetry Methods 0.000 description 1
- 150000004666 short chain fatty acids Chemical class 0.000 description 1
- 235000021391 short chain fatty acids Nutrition 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001180 sulfating effect Effects 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical group [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical class CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- OQNGNXKLDCKIIH-UHFFFAOYSA-N tetradecyl benzenesulfonate Chemical class CCCCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 OQNGNXKLDCKIIH-UHFFFAOYSA-N 0.000 description 1
- OULAJFUGPPVRBK-UHFFFAOYSA-N tetratriacontan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCO OULAJFUGPPVRBK-UHFFFAOYSA-N 0.000 description 1
- 208000037816 tissue injury Diseases 0.000 description 1
- AQWHMKSIVLSRNY-UHFFFAOYSA-N trans-Octadec-5-ensaeure Natural products CCCCCCCCCCCCC=CCCCC(O)=O AQWHMKSIVLSRNY-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- GSEJCLTVZPLZKY-UHFFFAOYSA-O triethanolammonium Chemical class OCC[NH+](CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-O 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F2007/0292—Compresses or poultices for effecting heating or cooling using latent heat produced or absorbed during phase change of materials, e.g. of super-cooled solutions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D2020/0004—Particular heat storage apparatus
- F28D2020/0008—Particular heat storage apparatus the heat storage material being enclosed in plate-like or laminated elements, e.g. in plates having internal compartments
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
Definitions
- the invention relates to a composition with at least one continuous and at least one discontinuous phase, comprising a continuous phase which is liquid or at least plastically deformable within a temperature range from -10 to 50 ° C. and a particulate discontinuous phase present in the continuous phase, the discontinuous phase Phase as phase change material (PCM) contains at least 10% by weight of an organic compound with a melting point in a range from 0 to 50 ° C. and at least one structuring polymeric compound.
- PCM phase change material
- a composition according to the invention consisting of a continuous and disperse phase is used in the context of a further embodiment of the present invention as part of a device for the controlled temperature control of an object by phase change.
- Suitable devices have at least one container which can hold a composition according to the invention described below.
- sports injuries such as injuries that are often summarized under the term "sports injuries" lead to considerable pain for the person concerned and thus to a considerable restriction of their well-being.
- sports injuries often include bruises or fractures, which are often associated with tissue injury, blood leakage beneath the skin, and associated swelling of the affected area. Inflammation is also often caused as a result, causing swelling of the affected part of the body and considerable heat development in this part of the body.
- US 3,885,403 describes a device that is suitable for use as a hot or cold compress.
- the device comprises a flexible sheath which is filled with a gel which retains its gel-like consistency over a wide temperature range.
- the object described in this document has the disadvantage that the gel warms up over time and no longer cools at a constant temperature. The cooling capacity decreases over time and leaves much to be desired for many applications.
- US 4,377,160 describes a self-adhesive, compressing bandage which can compress and cool an injured part of the body of a person or an animal.
- the tape consists of a flexible synthetic resin foam that is impregnated with an aqueous gel.
- the bandage described has the disadvantage that its cooling capacity is in many cases insufficient.
- US 4,711,813 relates to a composition for storing thermal energy.
- the composition is formed from a cross-linked polyethylene that is equipped with a long-chain alkyl carbon hydrogen as a phase change material (PCM).
- PCM phase change material
- the compositions described are used as components of floor or wall coverings.
- WO 90/01911 describes an orthopedic device which comprises a gel pad.
- the gel pad contains a gel and at least one phase change material, whereby the phase change material can be encapsulated.
- the problem with such compositions is that the capsules do not have sufficient mechanical strength and are destroyed when the device is subjected to greater stress. However, this usually leads to an at least partial loss of the cold-storing properties.
- No. 4,617,332 describes compositions which contain crystalline, long-chain hydrocarbons as phase change materials.
- the materials described are used, for example, in building materials. While the problems described above have essentially been described taking into account the use of such cooling units on living objects, similar problems also arise in principle when cooling non-living objects, for example when cooling machine parts, reactors and the like.
- a corresponding one Cooling device is permanently installed using electrical energy, requires flexibility with regard to the application of such a cooling unit and in particular flexibility with regard to the adaptation to certain contours of a corresponding component.
- the cooling effect should lead to a long-lasting and precise temperature control of the corresponding component,
- the present invention was also based on the object of providing compositions which have as high a proportion of a phase change material as possible without the mechanical properties of the material being adversely affected thereby. Furthermore, the present
- the object of the invention is to provide a composition which contains a phase change material in particle form, which retains this particle form even in the molten state, does not essentially mix with a carrier material surrounding the particles, and these properties essentially also under mechanical stress fully maintained.
- the present invention was based on the object of providing a method for producing such a composition and in particular a method for producing such a particulate phase change material.
- the object of the present invention was to provide a device, which contains an IO composition according to the invention and can be used for cooling living or non-living objects.
- the present invention therefore relates to a composition having at least one continuous and at least one discontinuous phase, comprising a ture range from minus 10 to 50 ° C liquid or at least plastically deformable continuous phase and a particulate discontinuous phase present in the continuous phase, the discontinuous phase as phase change material (PCM) at least 10 wt .-% of an organic compound with a melting point in a range from 0 to 50 ° C and contains at least one structuring polymeric compound.
- PCM phase change material
- Another object of the present invention is a method for producing a particulate PCM sponge, in which a dropletizable aqueous dispersion containing at least one polymer containing acid groups, at least one non-water-soluble organic compound with a melting point in a range of 0 up to 50 ° C. and at least one emulsifier is dropped into an aqueous solution of a cation which is at least divalent with respect to the acid groups of the polymer in such a way that drops with an average particle size of 0.5 to 4 mm form.
- the present invention further relates to the use of a composition according to the invention for controlled temperature control by phase change.
- the present invention relates to a device for the controlled tempering of an object by phase change, at least comprising a container for holding a composition according to the invention and such a composition according to the invention.
- a composition according to the invention comprises at least one continuous phase.
- a “continuous phase” is understood to mean a phase which is connected across the entire composition via at least one path and preferably at least partially encloses a discontinuous phase.
- the continuous phase comes within the scope of the present invention at least the task of ensuring the mobility of the individual particles of the discontinuous phase with respect to one another or preferably damping them in such a way that destruction of the particles of the discontinuous phase is essentially ruled out even under load.
- the continuous phase can, for example, completely complete the discontinuous phase and include over their entire surface, but it is also possible and provided according to the invention that the continuous phase only partially encloses the particles of the discontinuous phase, for example, or the surface of the particles which covers the discontinuous phase with a film.
- the properties of the continuous phase and in particular their influence on the behavior of the particles of the discontinuous phase with one another can be influenced, for example, by the ratio of continuous to discontinuous phase, as will be explained in more detail in the text below.
- all compounds are suitable as a continuous phase which have a sufficiently low solidification point within the scope of the areas of application of the present invention and do not exert any disadvantageous influence on the discontinuous phase in the sense of the present invention.
- the continuous phase is preferably a gel-like liquid, in particular an aqueous gel.
- the gel should have a sufficiently high viscosity to substantially completely encase the discontinuous phase, at least during the duration of the application of the composition, or, if the ratio of continuous to discontinuous phase allows, the discontinuous phase at least for the intended temperature range suspended.
- the gel should preferably not freeze on cooling and should be deformable or flowable even when cold.
- Suitable gels can be obtained, for example, on the basis of water, an additive which sufficiently lowers the freezing point of water and, if the viscosity of this mixture is not sufficient in the context of the present invention, a thickener if appropriate,
- suitable compounds lowering the freezing point of water are, for example, polyols such as ethylene glycol, diethylene glycol, propylene glycol, glycerol, lower oligomers of glycerol such as diglycerol or triglycerol, monoesters of short-chain fatty acids (approximately 2 to approximately 8 carbon atoms) with trimethylolpropane, triethylthritol, pentaerythritol or sugar alcohols or polyether compounds such as polyethylene glycol, preferably polyethylene glycol in a molecular weight range from about 200 to about 600 kg / kmol, monoesters of unsaturated fatty acids such as oleic acid, linoleic acid or linolenic acid with trimethylolpropane, triethylolpropane, pentaerythritol or sugar alcohols or polyether glycol compounds, preferably polyethylene glycol compounds in a molecular weight range from
- glycerol is used as the freezing point-lowering compound.
- water-soluble polymeric thickeners are particularly suitable.
- suitable as polymeric thickeners are polymerization compounds, polyaddition compounds or polycondensation compounds which, by appropriate functional groups, in particular by carboxyl groups, have sufficient water solubility for the present invention.
- polyurethanes bearing carboxyl groups as are known in a known manner by a polyaddition reaction, are suitable of polyisocyanates, polyols and polyols equipped with carboxyl groups.
- polyurethanes which have, for example, polyalkylene ether chains and thus have a corresponding water solubility.
- polycondensation compounds for example polyester compounds, the solubility of which is ensured by polyethylene ether groups or acid groups or both.
- polymers in particular the polymers of acrylic acid or methacrylic acid or mixtures thereof.
- the acid groups are preferably neutralized before the thickener is used.
- polyacrylic acid derivatives which have been neutralized with ammonium hydroxide or organic amines such as monoethanolamine, triethanolamine, diisopropanolamine, di (2-ethylhxyl) amine, triamylamine or the like.
- the neutralization is preferably carried out to such an extent that the corresponding gels have a pH within a suitable range from about 5 to about 8.5.
- a gel which can be used as a continuous phase in the present case has, for example, about 1 to about 10% by weight of a polyacrylic acid, about 1 to about 10% by weight of glycerol and about 40 to about 98% by weight .-% water.
- the pH of the gel is essentially within a range from about 5 to about 8.5, but preferably within a range from about 6 to about 8 and in particular from about 6.5 to about 7, 5 lies,
- a gel which can be used as a continuous phase according to the invention can also have further additives, if desired.
- suitable additives are, for example, dyes or pigments, preservatives, heat stabilizers, UV stabilizers, salts and the like.
- PCM sponges are used as the discontinuous phase in the context of the present invention.
- a “PCM sponge” is understood to mean a particle which contains at least one structuring polymeric compound and at least 10% by weight of an organic compound with a melting point in a range from about 0 to about 50 ° C., wherein the structuring polymeric compound forms part of the particle essentially over the entire particle cross section.
- a PCM sponge used in the context of the present invention therefore does not have a “core-shell structure”.
- a "PCM sponge” according to the present invention is characterized in particular by the fact that the particle shape does not essentially change during a transition of the organic compound from the solid phase to the liquid phase and vice versa while the external load remains the same and the particles also, if the organic compound is in liquid form, can be subjected to an external force without deliquescence or disintegration.
- a PCM sponge used according to the invention differs fundamentally from the organic compound contained in it, which would not retain the original shape if it were treated in the molten state.
- PCM sponges are used which, when the organic compound is melted, can withstand at least 5 Hl cm 2 of external force without essentially returning to their original shape after the external force has ended.
- the PCM sponges can preferably be subjected to a force of at least about 7 N / cm 2 , in particular at least about 10 Hl cm 2 .
- the particle size of the discontinuous phase is preferably in a range from about 0.5 to about 4 mm, in particular in a range from about 1 to about 3 mm.
- the particle size can be determined, for example, by means of microscopic methods as are generally known to the person skilled in the art.
- the PCM sponges according to the invention preferably contain polymers which have two or more anionic groups, in particular at least three or more anionic groups.
- anionic groups are suitable which can undergo a crosslinking reaction which is stable in the sense of the present invention with two or polyvalent cations.
- structuring polymers are preferably used which have carboxyl groups as anionic groups.
- Suitable compounds with carboxyl groups are, for example, the anionic polymers already mentioned above in the context of the explanation of the thickeners in the continuous phase. In a preferred embodiment of the present invention, however, polymers based on starch or cellulose are used.
- preferred polymers having anionic groups are, for example, alginate or cellulose compounds, in particular sodium alginate, barium alginate, carboxymethylated chesin or chitosan, carboxymethyl starch or carboxymethyl cellulose.
- all organic compounds which, together with a corresponding structuring polymeric compound, as described above, are a PCM sponge which can be used according to the invention are suitable as an organic compound with a melting point in a range from about 0 to about 50 ° C. form.
- waxy hydrocarbon compounds with a corresponding melting point are suitable. These include, for example, crystalline, long-chain alkyl hydrocarbons with about 10 to about 18 carbon atoms and their mixtures.
- organic substances are used as organic compounds in the PCM sponges used according to the invention which can be obtained on the basis of natural, renewable raw materials based on vegetable or animal fats and oils.
- the aldehydes obtainable therefrom are suitable, for example; alkanolamides; alkylpolyglycosides; Fatty acid alkyl esters, in particular methyl esters, ethyl esters, butyl esters; Fatty alcohols; Ocenols, Guerbet alcohols, fatty acids, glycerol, ethoxylated glycerol, fatty acid monoglycerides, diglycerides or triglycerides; Polyethylene glycol having a molecular weight from about 400 to about 1000; alkylsulfosuccinate salts; Fatty alcohol sulfate salts; Salts of fatty acids, and ethoxylated triglycerides.
- organic compounds which can be used in the context of the present invention can each be used individually. However, it is advantageous according to the invention if, for example, mixtures of two or more of the compounds mentioned above are used.
- a fatty acid mixture with a "eutectic composition” of 72 mol% capric acid and 28 mol% lauric acid is used.
- the melting point of such a “eutectic” mixture is 21 ° C., while the melting points of the pure acids are 31, 3 and 44.2 ° C.
- fatty alcohols in particular a fatty alcohol having 12 carbon atoms (melting point: 24 ° C.) are used as organic compounds.
- mixtures of fatty alcohols in particular a mixture containing a fatty alcohol with 12 carbon atoms (melting point: 24 ° C.) and a fatty alcohol with 14 carbon atoms (melting point: 38 ° C.) are used as organic compounds.
- the above-mentioned organic compounds act as so-called phase change materials (PCM).
- PCMs phase change materials
- the above-mentioned PCMs selected on the basis of natural renewable raw materials have a small volume change during the phase change and a high heat of fusion. Due to the fact that the above mentioned mixtures Fig. melting point depressions are particularly suitable for the production of tailor-made products with regard to the dissipation of heat.
- the substances mentioned are generally non-toxic and extremely environmentally compatible, so that the leakage of a composition according to the invention from a device described in the context of the further text does not harm either the object to be treated or a patient treated with it or the environment.
- the PCM sponges described above are mixed with an appropriate gel as a continuous phase.
- the mixing ratio can be within a wide range.
- the ratio of continuous phase to discontinuous phase can be approximately 1: 100 to 100: 1. Since the heat dissipation from an object to be cooled or the heat dissipation capacity increases with an increasing proportion of discontinuous phase, namely the PCM, it is preferred within the scope of the present invention to use the highest possible proportion of PCM in a corresponding composition.
- Compositions are therefore preferably used which have a ratio of continuous to discontinuous phase of at most about 1: 1, preferably about 1: 9 to 1:20, for example about 1:10 to about 1:15,
- the PCM sponges used in the context of a composition according to the invention can in principle be produced in any manner, provided that the structure and particle size as described above are achieved.
- the PCM sponges according to the invention are obtained by dropping a liquid mixture containing the structuring polymer and the organic compound into a precipitation bath.
- compositions suitable for dripping contain at least water and at least one structuring polymer and at least one organic compound with a melting point in a range from about 0 to about 50 ° C.
- Suitable dropletizable mixtures therefore contain, in the context of a preferred embodiment of the present process, at least one emulsifier.
- Suitable emulsifiers are, for example, surfactants such as alkyl ethoxylates, monoglycerides, alkyl polyglycosides, soaps, alkyl benzene sulfonates, secondary alkane sulfonates, olefin sulfonates, alkyl ether sulfonates, glycerol ether sulfates, and sulfonate ethersulfonates - Fatty acids, alkyl and / or alkenyl sulfates, alkyl ether sulfates, glycerol ether sulfates, hydroxy mixed ether sulfates, fatty alcohol (ether) phosphates, monoglyceride (ether) sulfates, fatty acid amide (ether) sulfates, mono- and dialkyl sulfosuccinates, mono- and dialkyl sulfosuccinyl amide
- Preferred emulsifiers are surfactants selected from the group consisting of alkyl ethoxylates, monoglycerides, alkyl polyglycosides or soaps, in particular fatty alcohol ethoxylates, fatty alcohol sulfates, secondary alkane sulfonates and linear alkyl benzene sulfonates.
- Alkyl ethoxylates which are also often referred to as fatty alcohol ethoxylates, are understood to mean the ethoxylation products of primary or branched alcohols which follow the formula (I).
- Fatty alcohol ethoxylates with 1 to 40, preferably 20-30, ethylene oxide units are preferably used.
- alkyl ethoxylates which can preferably be used as emulsifiers for the purposes of the invention are the ethoxylation products of capron alcohol, caprylic alcohol, capric alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol and their technical mixtures Hydrogenation of technical methyl ester fractions or fatty acids or triglycerides can be obtained; as well as branched alcohols from oxo synthesis.
- mixtures of cetyl alcohol ethoxylate with stearyl alcohol ethoxylate or with oleyl alcohol ethoxylate with 20-30 ethoxyl groups are used as emulsifiers.
- Suitable alkylbenzenesulfonates preferably follow the formula (II),
- R 2 is a branched but preferably linear alkyl radical having 10 to 18 carbon atoms
- Ph is a phenyl radical
- X is an alkali and / or alkaline earth metal, ammonium, alkylammonium, alkanolammonium or glucammonium.
- Dodecylbenzenesulfonates, tetradecylbenzenesulfonates, hexadecylbenzenesulfonates and their technical mixtures in the form of the sodium salts are preferably used.
- soaps are to be understood as meaning fatty acid salts of the formula (III)
- R 3 CO represents a linear or branched, saturated or unsaturated acyl radical having 6 to 22 and preferably 12 to 18 carbon atoms and again X represents alkali and / or alkaline earth metal, ammonium, alkylammonium or alkanolammonium.
- Typical examples are the sodium, potassium, Magnesium, ammonium and triethanolammonium salts of caproic acid, caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, isotridecanoic acid, myristic acid, palmitic acid, palmoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, arachene acid, linoleic acid, Gadoleic acid, behenic acid and erucic acid and their technical mixtures.
- coconut or palm kernel fatty acid is preferably used in the form of its sodium or potassium salts.
- glycerol mono-oleates e.g. Edenor GMO CAS 25496-72-4
- glycerol di-oleates (Edenor GMO H) are particularly suitable
- Glyceryl laurate CAS 142-18-7
- Glycerol monocaprylate (CAS 26402-26-6) (all trade names: Cognis GmbH & Co. KG).
- Sorbitan esters Sorbitan esters ethoxylated and or propoxylated and their mixtures
- Castor oils or hydrogenated castor oils are also suitable: e.g. Eumulgin B1 (CAS 68439-49-6), Eumulgin B2 (CAS 68439-49-6), Eumulgin B3 (CAS 68439-49-6), Eumulgin L (CAS 187412-42-6), Eumulgin HRE 40 ( CAS 61788-85-0), Eumulgin HRE 60 (CAS 61788-85-0), Emulgin RO 40 (CAS 61791-12-6), Cremophor CO 40 (CAS 61788-85-0), Cremophor CO 60 (CAS 94581 -01-8), Cremophor EL (CAS 61791-12-6), Cremophor WO 7 (CAS 61788-85-0), Dehymuls HRE 7 (CAS 61788-85-0), Arlacel 989 (CAS 94581-01-8 ), all trade names: Cognis Deutschland GmbH & Co. KG.
- Monoglyceride sulfates and monoglyceride ether sulfates are known anionic surfactants which can be obtained by the relevant methods of preparative organic chemistry.
- the usual starting point for their preparation is triglycerides, which, if appropriate, are transesterified to the monoglycerides after ethoxylation and subsequently sulfated and neutralized. It is also possible to react the partial glycerides with suitable sulfating agents, preferably gaseous sulfur trioxide or chlorosulfonic acid [cf. EP 0561825 B1, EP 0561999 B1 (Henkel)].
- the neutralized substances can be subjected to ultrafiltration in order to reduce the electrolyte content to a desired level [DE 4204700 A1 (Henkel)].
- Overviews of the chemistry of the monoglyceride sulfates are, for example, by AK Biswas et al. in J.Am.Oil.Chem.Soc. 37, 171 (1960) and F. U, Ahmed J.Am.Oil.Chem.Soc. 67, 8 (1990).
- the monoglyceride (ether) sulfates to be used in accordance with the invention follow the formula (IV),
- R 4 CO stands for a linear or branched acyl radical with 6 to 22 carbon atoms, c, d and e in total for 0 or for numbers from 1 to 30, preferably 2 to 10, and X stands for an alkali or alkaline earth metal.
- Typical examples of monoglyceride (ether) sulfates suitable for the purposes of the invention are the reaction products of lauric acid monoglyceride, coconut fatty acid monoglyceride, palmitic acid monoglyceride, stearic acid monoglyceride, oleic acid monoglyceride and tallow fatty acid monoglyceride as well as their ethylene oxide adducts or their form of sulfuric acid with sulfuric acid trioxide.
- Alkane sulfonates can be divided into primary and secondary alkane sulfonates. This means compounds of the formula (V)
- R 5 is hydrogen and R 6 is an alkyl radical with no more than 50 carbons.
- the secondary alkanesulfonates are preferred,
- compositions suitable for dripping can also contain other ingredients.
- Another suitable ingredient is, for example, a co-emulsifier or a mixture of two or more co-emulsifiers. These are preferably low molecular weight nonionic compounds, for example fatty acid monoethanolamide.
- Other suitable co-emulsifiers are, for example, fatty acid isopropanolamide and fatty acid diethanolamide.
- Fatty acids of chain length C10 to C12 for example coconut fatty acids or tallow fatty acids, are used as fatty acids.
- Polymeric compounds which can contribute to regulating the viscosity of the emulsion to be dripped are generally suitable as further additives.
- non-ionic, water-soluble polymer compounds such as polyethylene glycol or polyvinyl alcohol are suitable.
- Polyethylene glycol with a molecular weight of about 150 to about 1000 is particularly suitable.
- Short-fiber celluloses and polyacrylates with an average molecular weight of 1,000 to 30,000 as well as the alkali salts of maleic acid / acrylic acid copolymers are also suitable.
- Cationic polymers are also suitable for regulating the viscosity and as crosslinking agents.
- cationic polymers are understood to mean polymeric compounds which have one or more amino groups which, for example, can be converted into cationic groups by protonation or quaternization. Particularly suitable in this context are within the scope of the present invention Compounds like chitosan.
- emulsion to be dripped are low molecular weight compounds which regulate the viscosity or flow behavior of the emulsion.
- Glycerin is particularly suitable.
- pH-regulating compounds are also suitable as a component of an emulsion to be dripped.
- the pH of the emulsion to be dripped is in the range from pH 4 to 7, preferably within the range from about 4.3 to 5.
- acetic acid or glutaric acid can be used.
- an emulsion to be dripped has, for example, the following composition:
- a structuring polymer in particular sodium alginate
- a viscosity regulator from the group of nonionic polymeric compounds, in particular polyethylene glycol with a molecular weight of about 100 to about 500,
- a cationic polymer especially chitosan and 0 to about 15% by weight glycerin.
- the emulsions used in the process according to the invention are adjusted to a viscosity of from about 20 to about 500 mPas, in particular from about .50 to about 150 mPas, with the aid of the abovementioned compounds.
- a frequency can additionally be applied to the flow of the organic / aqueous emulsion.
- the frequency can be impressed by means of a vibrating membrane, a vibrating plate, pulsating feed current, an electric field or a sound field.
- Suitable precipitation baths contain at least one, divalent or polyvalent cation.
- all polyvalent cations are suitable which form a sufficiently strong ionic bond with the structuring polymer contained in the emulsion in order to crosslink the structuring polymer.
- Polyvalent metal ions are particularly suitable, in particular the cations of the metals of the second and third main groups of the periodic table of the elements. Magnesium ions, calcium ions or aluminum ions are preferably used as metal ions.
- the structuring polymer contained in the emulsion is crosslinked by the multivalent cations contained in the precipitation bath.
- Crosslinking takes place through the formation of ionic bonds between the acid groups contained in the structuring polymer, in particular the carboxyl groups and the cations.
- the combination of acid groups in the structuring polymer and calcium or magnesium ions as cations in the precipitation bath is particularly suitable.
- a suitable precipitation bath contains about 0.1 to about 3% by weight of a salt of a polyvalent metal cation.
- the chlorides are particularly suitable.
- a suitable precipitation bath contains about 0.7 to about 1.5% by weight of a corresponding salt, in particular 0.7 to about 1.2% by weight of calcium chloride.
- a viscosity-increasing agent is added to the precipitation bath in the context of a preferred embodiment of the present invention.
- a viscosity-increasing agent is preferably a polyalkylene glycol, in particular a water-soluble polyalkylene glycol, preferably polyethylene glycol.
- Suitable polyethylene glycols have a molecular weight of about 100 to about 1000.
- the individual drops are introduced into a stream of a precipitation bath solution, which moves towards a device element suitable for removing the PCM sponges.
- Corresponding flows of the precipitation bath solution can be achieved, for example, by using pumps and by pumping the precipitation bath solution around them.
- the residence time of the drops in the precipitation bath is set in the context of a preferred embodiment of the present invention such that the residence time of the drops in the continuous precipitation bath is a total of about 0.5 to about 50 seconds, in particular about 1 to about ten seconds.
- inclined conveyor belts for example, are particularly suitable for removing the PCM sponges. It is possible to remove the PCM sponges using a combined filter-wash
- the suspension of precipitation bath and PCM sponges is first in a first zone of the main amount separated on the precipitation bath.
- the separated precipitation bath is collected and returned to the dropletization zone.
- the PCM sponges then pass through a washing zone on the filter belt in a second zone, being washed with water, for example with tap water or demineralized water.
- the filter belt can, for example, pass through a dewatering zone in which the PCM sponges are freed of residual amounts of precipitation bath liquid, for example by applying a vacuum to the underside of the filter belt.
- the PCM sponges can still rest and continue to crosslink for a roughly defined period of time.
- the PCM sponges separated from the continuous precipitation bath are transferred to a so-called "resting pool".
- the crosslinking of the PCM sponges continues.
- the water that is still contained in the PCM sponges is released by osmotic pressure Removed from the PCM sponges
- the mechanical stability of the PCM sponges increases in the relaxation pool,
- the residence time in the relaxation pool is preferably 0.2 to 5 hours at this point.
- the PCM sponges produced according to the invention are basically suitable as a component of the compositions according to the invention for use in devices with which objects can be temperature-controlled in a controlled manner.
- the present invention therefore also relates to the use of a particulate PCM sponge produced according to the invention as a component of compositions for controlled temperature control by phase change (PCM).
- PCM phase change
- a composition according to the invention is used in the context of a further embodiment of the present invention as a component of a device for the controlled tempering of an object by phase change.
- Suitable devices have at least one container that can hold a composition according to the invention.
- the present invention therefore also relates to a device for the controlled tempering of an object by phase change, at least comprising a container for holding a composition according to the invention.
- Containers suitable in the context of a device according to the invention can in principle have any structure.
- the number of individual containers per device according to the invention is essentially unlimited and can be easily coordinated by the person skilled in the art with regard to the desired form of use of the device.
- With regard to the most flexible use of such Device for objects with a wide variety of spatial shapes has proven to be advantageous if the container has a certain flexibility in order to adapt to corresponding spatial shapes.
- the flexibility of a corresponding container can be essentially the same in the direction of each spatial axis of the container or it can have only slight differences.
- a corresponding container has different flexibility in the direction of different spatial axes of the container.
- a device according to the invention in which the container has at least one of the following properties:
- the container is flexible, b) the container is closed on all sides, c) the container has two or more separate or in fluid communication with each other, d) the container consists of an organic polymeric material. e) The outer container material is formed by a film.
- a device according to the invention can have a container which is open on one or more sides. However, it is preferred in the context of the present invention if the container is closed on all sides to prevent the composition according to the invention from escaping.
- the spatial shape of a container is essentially arbitrary and can be adapted, for example, to a desired purpose with regard to the cooling of a specific object or a specific object type.
- a corresponding container has a spatial shape that is basically expanded in two spatial directions. This is not opposed to the fact that such a container is designed, for example, by connecting the ends of such a flat container type into a cylindrical shape, a cone shape or similar spatial shapes. It is conceivable and provided within the scope of the present invention, for example, to design a device according to the invention with an essentially flat container, for example by means of connection points to form a wide variety of jacket shapes and cuffs.
- a corresponding container is divided into several chambers, which may be in fluid communication with one another. Even the division into different chambers can prevent that by exerting an external pressure on the container, as often occurs in the application, the entire composition according to the invention located inside the container is displaced at such a pressure point, whereby the tempering effect is partially absent.
- Fig. 1 shows the section through a multi-chamber, flat container.
- a cover sheet (2) shaped like a wave is applied to an optionally thermally insulating base sheet (1) and in the wave troughs, for example by welds
- the cavity (4) resulting from the wave-like structure of the cover film is filled with a composition according to the invention.
- Fig. 2 shows a corresponding container in the top view.
- the weld seams (3) alternately form tubular cavities (5) on the flat container, which contain a composition according to the invention.
- Fig. 3 shows an application example for such a container. Due to the increased flexibility along the weld seams (3), appropriate containers can be arranged around body parts such as arms or legs (6), for example, and provide appropriate temperature control there.
- a film is preferably used as a tube to form the container.
- the tube is filled with the composition of the continuous and discontinuous phase and the edges are welded with a welding machine. This enables foil bags of various shapes and lengths to be obtained.
- the tube is welded several times with a wide welding surface using a film welding device.
- a perforation line is punched between the connected bags. This has the advantage that several bags can be combined into one system. Depending on the application, connected bags can be easily separated and used in the form and quantity required for the application system.
- polyethylene PE can be used as the film material.
- an LDPE with an elongation of 400-600% is used. It is inert and dense to the composition. It can be welded at 105-115 ° C. Even after cooling to -20 ° C, PE is still elastic and does not become brittle.
- a double-layer film made of polyethylene and polypropylene PP or PET. PE is the internal film that is in contact with the composition according to the invention.
- the PP or PET layer forms the elastic outer layer, which is not welded when the inner layer is welded. This layer is dense and resistant to chemicals.
- the outer layer made of PP or PET can be stuck with labels.
- 30% fatty alcohol was dispersed at 50 ° C. in an aqueous solution with 0.7% sodium alginate, 5% polyethylene glycol 200 and 0.25% cetylstearyl alcohol + 20EO. 500 g of this solution were added dropwise to a precipitation bath with 1% CaCl 2 and 5% polyethylene glycol 200. 250 g of PCM sponges with a diameter of 1-2 mm were formed. The PCM sponges were filtered off with a sieve. The PCM sponges could also be exposed to larger external pressures, for example between the fingers, without flowing or dividing.
- the PCM sponges were mixed with 10% by weight of a viscous gel based on water, glycerin and polyacrylate (Hispagel 200, from Cognis, Germany), filled into a film bag equipped with chambers and sealed. A film-like container with the dimensions 150 mm * 250 mm was thus obtained. A commercially available polyethylene bag was used as the film bag for the production of ice cubes. The combination of viscous gels and PCM sponges allows the PCM sponges to move within the chambers. As a rule, only small mechanical forces are transferred to the PCM sponges.
- the foil bag is not rigid, but can flexibly adapt to essentially any shape.
- the PCM pad thus obtained was cooled at 10 ° C. overnight.
- the heat transfer was tested on a glass cooler. Water with a temperature of 34 ° C flowed through the glass cooler.
- the cooler tube was wrapped with the pad and the surface insulated with a cloth.
- the temperature at the interface between the cooler tube and the pad rose from 14 ° C to 31.5 ° C within three hours.
- the temperature initially remained constant at 17 ° C. for about 0.5 h (softening range of the gel).
- the temperature then rose to the melting temperature of the fatty alcohol (24 ° C.) and was kept constant there for about 1 hour until all of the fatty alcohol had melted. Overall, a cooling effect could be observed over 3 h.
- the PCM sponges were transferred to a resting pool with 0.6% CaCl 2 . After 3 days at 20 ° C the PCM sponges had shrunk to 1.7-2 mm. This means a volume decrease of 70% by displacing the water. Leakage of the fatty alcohol was not observed during the shrinking.
- the PCM sponge therefore essentially only contains organic phase change material and structuring polymer.
- the PCM sponges could also be exposed to larger external pressures of 12 N / cm 2 , for example between the fingers, without flowing or dividing.
- the PCM sponges were examined in DSC (differencial scanning calorimetry) with glycerin as a continuous phase with regard to their melting behavior. It was heated 4 times between minus 60 and 55 ° C and cooled again. The DSC measurement via the phase change temperature is reproducible four times both when heating and when cooling. The sample shows a phase change temperature of 19 to 22 ° C with a sharp melting peak of 34-35 kJ / kg.
- the PCM sponges were mixed with 7% by weight of a viscous gel based on water, glycerin and polyacrylate (Hispagel 200, from Cognis, Germany), filled into a foil bag and sealed. A container with the dimensions 100 mm * 100 mm was thus obtained.
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Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10303334 | 2003-01-29 | ||
| DE10303334A DE10303334A1 (de) | 2003-01-29 | 2003-01-29 | Zusammensetzung zur kontrollierten Temperierung durch Phasenwechsel, deren Herstellung und Verwendung |
| PCT/EP2003/014595 WO2004067671A1 (de) | 2003-01-29 | 2003-12-19 | Zusammensetzung zur kontrollierten temperierung durch phasenwechsel, deren herstellung und verwendung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1590419A1 true EP1590419A1 (de) | 2005-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03795937A Withdrawn EP1590419A1 (de) | 2003-01-29 | 2003-12-19 | Zusammensetzung zur kontrollierten temperierung durch phasenwechsel, deren herstellung und verwendung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060233986A1 (de) |
| EP (1) | EP1590419A1 (de) |
| AU (1) | AU2003298218A1 (de) |
| DE (1) | DE10303334A1 (de) |
| WO (1) | WO2004067671A1 (de) |
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| NL2004246C2 (en) * | 2010-02-15 | 2011-08-16 | L G J Wolters Beheer Lichtenvoorde B V | Heat storage material and its method of manufacturing. |
| FR2957348B1 (fr) | 2010-03-10 | 2012-03-02 | Inst Francais Du Petrole | Composition et methode de gelification d'un materiau a changement de phase |
| US8192924B1 (en) * | 2011-04-21 | 2012-06-05 | Tcp Reliable, Inc. | Rapid cooling to and maintaining of whole blood at 20 to 24C for processing |
| US12279610B2 (en) * | 2011-03-15 | 2025-04-22 | Paragonix Technonogies, Inc. | System for hypothermic transport of samples |
| EP3766944A1 (de) * | 2012-01-03 | 2021-01-20 | Phase Change Energy Solutions, Inc. | Verfahren zur herstellung eines schaumes |
| US9598622B2 (en) | 2012-09-25 | 2017-03-21 | Cold Chain Technologies, Inc. | Gel comprising a phase-change material, method of preparing the gel, thermal exchange implement comprising the gel, and method of preparing the thermal exchange implement |
| WO2015164654A1 (en) * | 2014-04-23 | 2015-10-29 | Entropy Solutions Inc. | Thermal energy storage and temperature stabilization phase change materials comprising alkanolamides and diesters and methods for making and using them |
| US10316235B2 (en) | 2015-01-26 | 2019-06-11 | Trent University | Food/beverage container with thermal control |
| US9434674B2 (en) | 2015-01-26 | 2016-09-06 | Trent University | Latent heat storage using renewable phase change materials |
| PL3095406T3 (pl) * | 2015-05-19 | 2020-07-13 | Erbe Elektromedizin Gmbh | Neutralne urządzenie elektrodowe do aplikowania prądu HF, układ z odpowiednim neutralnym urządzeniem elektrodowym i proces wytwarzania neutralnego urządzenia elektrodowego |
| US10602250B2 (en) | 2016-10-13 | 2020-03-24 | Bose Corporation | Acoustaical devices employing phase change materials |
| US10531174B2 (en) * | 2016-10-13 | 2020-01-07 | Bose Corporation | Earpiece employing cooling and sensation inducing materials |
| US20210400952A1 (en) | 2017-06-07 | 2021-12-30 | Paragonix Technologies, Inc. | Apparatus for tissue transport and preservation |
| CN108048045B (zh) * | 2017-11-28 | 2021-02-26 | 大连理工大学 | 一种导热增强有机复合定形相变材料及其制备方法 |
| CN108102614B (zh) * | 2017-11-28 | 2020-12-11 | 大连理工大学 | 一种有机复合定形相变材料及其制备方法 |
| CN111946439B (zh) * | 2020-07-28 | 2022-07-19 | 武汉市金兰发动机有限公司 | 一种发动机用具有降噪功能便于拆装的散热系统 |
| DE102020120807A1 (de) | 2020-08-06 | 2022-02-10 | Axiotherm GmbH | Kühlakku, Verfahren zur Herstellung eines Kühlakkus, sowie Transportbox zum Transport eines temperaturempfindlichen Guts mit einem Kühlakku |
| MY202493A (en) * | 2021-06-17 | 2024-04-30 | Petroliam Nasional Berhad Petronas | Phase change materials |
| DE102021115826A1 (de) | 2021-06-18 | 2022-12-22 | Amir Foroutan | Temperierelement, insbesondere Kühlelement |
| SE546461C2 (en) * | 2021-07-08 | 2024-11-05 | Energyintel Services Ltd | A thermal energy storage system |
| EP4331546A1 (de) | 2022-08-31 | 2024-03-06 | HyPro Innovation GmbH | Absorbierendes pad mit thermischem effect |
| US20250064674A1 (en) | 2023-08-25 | 2025-02-27 | Paragonix Technologies, Inc. | Methods and systems for cyclically inflating and deflating a lung ex-vivo |
| US12410408B2 (en) | 2024-02-02 | 2025-09-09 | Paragonix Technologies, Inc. | Method for hypothermic transport of biological samples |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3885403A (en) * | 1971-07-20 | 1975-05-27 | Nortech Lab Inc | Device for use as a hot and cold compress |
| US4377160A (en) * | 1980-12-19 | 1983-03-22 | Romaine John W | Compression bandage |
| US4617332A (en) | 1984-08-31 | 1986-10-14 | University Of Dayton | Phase change compositions |
| US4711813A (en) * | 1985-11-22 | 1987-12-08 | University Of Dayton | Polyethylene composites containing a phase change material having a C14 straight chain hydrocarbon |
| US4964402A (en) * | 1988-08-17 | 1990-10-23 | Royce Medical Company | Orthopedic device having gel pad with phase change material |
| DE4038477A1 (de) | 1990-12-03 | 1992-06-04 | Henkel Kgaa | Verfahren zur kontinuierlichen herstellung von partialglyceridsulfaten |
| DE4038478A1 (de) * | 1990-12-03 | 1992-06-04 | Henkel Kgaa | Verfahren zur herstellung von partialglyceridsulfaten |
| DE4204700A1 (de) | 1992-02-17 | 1993-08-19 | Henkel Kgaa | Verfahren zur abtrennung anorganischer salze |
| WO2002026911A1 (en) * | 2000-09-27 | 2002-04-04 | Microtek Laboratories, Inc. | Macrocapsules containing microencapsulated phase change materials |
| MXPA03007041A (es) * | 2001-02-07 | 2004-01-15 | Saipem Sa | Metodo de fabricacion de material de cambio de fase, casi incompresible, fluidizado bajo corte y con baja conductividad termica. |
-
2003
- 2003-01-29 DE DE10303334A patent/DE10303334A1/de not_active Withdrawn
- 2003-12-19 US US10/544,023 patent/US20060233986A1/en not_active Abandoned
- 2003-12-19 WO PCT/EP2003/014595 patent/WO2004067671A1/de not_active Ceased
- 2003-12-19 AU AU2003298218A patent/AU2003298218A1/en not_active Abandoned
- 2003-12-19 EP EP03795937A patent/EP1590419A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004067671A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004067671A1 (de) | 2004-08-12 |
| DE10303334A1 (de) | 2004-08-12 |
| US20060233986A1 (en) | 2006-10-19 |
| AU2003298218A1 (en) | 2004-08-23 |
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