DE10102250A1 - Laten heat storage material, sound absorber and biofilter - Google Patents

Abstract

The invention relates to a latent heat storage material based on a phase change material such as paraffin, in particular. The latent heat storage material contains a thickening agent, especially a proportion of a copolymer such as a triblock, radial block, and/or multi-block copolymer, optionally in conjunction with a diblock copolymer. In order to provide an improved corresponding latent heat storage material, the invention provides that the material comprises a proportion of an oil binding agent. The invention also relates to a filter containing filtration-active micro-organisms, to a sound absorber, to a textile material and to a membrane-like porous plastic body.

Description

The invention initially relates to a latent heat Chemical material based on phase change material such as in particular paraffin, containing a thickener such as in particular a copolymer, for example a tri block, radial block and / or multiblock copolymer.

Such materials are already in the candle sector become known in various configurations. It reference is made, for example, to WO 99/27042. The Phase change material, here especially the paraffin, is in a framework or network formed by the Copolymers. The phase change material for runs through at a corresponding tempera increase in door, the phases solid and fluid. Overall the latent heat storage material in a temperature ar range, which has a temperature range of below half to above the phase change temperature of the phase change material includes a gelatin or solid character.

It has been found that when using such Materials as latent heat storage materials, depend gig of the phase change material used such as paraffin in particular, improvements still desired are. For example, with regard to leakproofness, the Improvement of an expansion behavior, the density and thermal conductivity.

Based on this, the object of the invention basic, an improved latent heat storage material based on a phase change material such as in particular  Paraffin containing a thickener such as a copolymer to specify.

This task is initially solved in that the Latent heat storage material a portion of an oil binder means contains. Basically can be used as an oil binder in this context especially fine powdered and preferably fusible adsorbents and absorbents for Use that have an affinity for the phase change Have material, especially paraffin. The oil bandage medium can also be selected for specific temperatures. The oil binder sucks in the concrete, for example Paraffin mixture present low melting stock divide that otherwise at the beginning of the solidification process would still be liquid and only later, at low temperatures as the main part of the selected Paraffins, would freeze. To do this, take a look Lich of the named and other oil binders only or in any case those which have short-chain C-H moles cooler, in relation to paraffin those that share with a melting point of 40 ° C or less.

These low-melting paraffin parts then occur but practically no longer appears. All in all a "drier" attitude of the Phase change material or latent heat storage terials. With regard to such oil binders are ver different possibilities. For example a polyolefin can be used for this. In particular a polymerized polyolefin. Suitably a such from the group of alkenes. Preferably a C-10 alpha olefin. In particular a polyolefin like it is known under the trade name "Vybar". It han This is a fully polymerized one Ethylene hydrocarbon. On the other hand, this goal  also, for example, by a proportion of pyrogenic Silica can be obtained. Such silica is known for example under the trade name AEROSIL. The polyolefin mentioned can also be used fumed silica can be used in combination. at Use of the silica mentioned is still evident the additional advantage that a certain thickening or thixotropy effect of the ge melted latent heat storage material. In addition, the silica can have mechanical properties ten of the - solidified - latent heat storage material, such as tensile strength, tear strength and tear strength significantly improve stability. This is due to this leads to such a silica as a booster fill substance on the copolymers or block polymers, such as a mentioned above, acts. The proportion of oil binder based on the total mass of the latent heat storage material erials can be between 0.1 and 20% by mass. As part of The present application is the term mass percent selected based on the base amount of paraffin. For example, 100 g paraffin plus 20% by mass contribute Mix with 100 g paraffin plus 20 g additive. The The share of oil binder also results from the Purpose pursued: The proportion is chosen so that the desired drier setting, for example reached or just reached.

Alternatively or in combination with the aforementioned proportions the latent heat storage material can also have a share have metal powder. Leaves through a metal powder fundamentally improved thermal conductivity and / or achieve a desired density setting. The most varied metal powders come into Fra ge. For example aluminum powder or titanium powder.  

Alternatively or in combination with the aforementioned proportions can also said latent heat storage material a proportion of titanium dioxide, in particular titanium IV oxide, contain. Surprisingly, it has been shown that the surface quality of the solidified latent heat chermaterials is significantly improved. In particular if the latent heat storage material in extruder or Injection molding machines is processed. In addition, could an advantageous toughness of the latent heat storage terials are observed. From latent heat Molded parts made soften less quick and less strong than molded parts with this Addition (taking into account that such Moldings due to the proportion of copolymer their structure not lose anyway in the state of softening, because this is maintained by the copolymer). In terms of Titanium dioxide effects up to 1% by weight very essential in terms of the aforementioned material properties.

Processing the latent heat mentioned at the beginning storage material in an extruder or a spray casting machine comes in terms of one more common in it wise included promoters, such as one in particular Screw conveyors, regardless of whether the latent heat storage material one of the present application contains additions listed, also a principle importance. Enforcement of such Funding leads to a desired kneading of the latent heat storage material, which is an extremely good one Distribution of the phase change material in the scaffold or network containing the thickener, in particular which forms the copolymer, can be achieved. Also poses a harder surface latent produced in this way heat storage material body.  

Furthermore, alternatively or in combination with the aforementioned The latent heat storage material can also have ten fractions have a carbon or graphite content. coals fabric can be in any of the known modifications Come into play. The carbon / graphite content is particularly high particularly advantageous with regard to a microwave temperature sensitivity of the latent heat storage material. This Microwave sensitivity can depend on the proportion Graphite can be adjusted very well. Is preferred Graphite used in the form of graphite powder. About that Such a graphite content is also advantageous in terms of the improved heat thus achieved conducting properties. The heating of the latent heat storage material is advantageously influenced.

Furthermore, alternatively or in combination with the aforementioned proportions, in particular also as an alternative or combination tiv to the aforementioned graphite, the latent heat storage material also in mixed capillaries Contains microwave-active substances in the capillary bodies contain. About the grain size distribution of such a The body with capillary structure can be Uniformity of the heating process in a microwave le taxes. The finer the distribution, the better the heating process proceeds. This microwave active For example, substances can be one of the known dipoles properties of higher-boiling liquids his. In particular, it can also be high-boiling Trade alcohols. Because of the different waiters surface tensions of the latent heat storage material on the one hand, if necessary also with one or more of the ge called additives, and alcohols, water etc. on the other hand, there is no exchange, for example, during the train passing through various heating and cooling cycles between the latent heat storage material  and about alcohol instead. In particular is also before some, this capillary body with, for example alcohol contained in it, but it can also be for example, just act as water, in the course of a Extruding the lathe heat base on which this is based admix materials. The micro wave-active substance also around a low-boiling rivers liquid, for example low-boiling alcohol, han spindles. For example, if the sensitivity to microwaves len of the latent heat storage material after one or should disappear a few missions. For example this can be the case if a finished part is made from this Latent heat storage material to its future effect shape should be adjusted without this later unintentionally by renewed microwave radiation and is heated uncontrollably. Examples of one low boiling alcohol is about methanol and for a high-boiling alcohol such as decanol. That too Graphite already mentioned is suitable as a microwave acti ver fabric.

The substances mentioned, in particular the silica and the titanium dioxide, also make it possible to soften the and expansion properties of such a latent w selectively adjust the heat storage material. First a density setting can be made. This is about in terms of whether the latent heat storage material, especially when used in a water reservoir, is specifically heavier or lighter than the water. The expansion factor can also be set. If, for example, the latent heat storage bodies as spheres, in Form of a bed, present, initially floats Flow of water through this fill does not if the latent heat storage is body-specific rer than water are set. In addition,  expansion to a certain extent. hereby are passage gap remaining between the balls te closer. But at the same time, this is known to cause one higher pressure loss, so in the areas of Latent heat storage material, where due to the persistent heating even larger passages are present, a stronger flow and thus a faster rise in warming is effected. here overall there is a comparative uniform heating even with large accumulations of such latent heat storage material. This in particular re also if the latent heat storage material as a whole is enclosed in a corresponding vessel.

Due to the substances mentioned, especially the copolymer but also the silica and the titanium dioxide also a higher resistance to detergents to reach. This is below and above the melting point tes of phase change material such as in particular Paraffin. So washable and washable Objects molded from this latent heat storage material material. Resistance to washing medium can be set so well that even stored substances, such as the microwaves mentioned ven liquids, not from such latent heat material can be removed by washing can.

Another essential idea of the invention is in adding short fibers to the latent heat storage material amounts. In particular, it cannot self-suck de fibers that, due to their internal structure, z. B. by a closed structure with gas blowing Chen, similar to a closed-pore foam, is filled, or mechanical spring elements (e.g.  microscopic spirals), which fibers or Spring elements are able to expand Paraffins to absorb mechanical stresses men and each with decreasing pressurization because reversible to relax. With such short fibers and / or metallic elements such as small spiral feet can one of this latent heat storage material molded part not only internal tensions record, but it also arise in terms of a soundproofing effect surprisingly advantageous Characteristics. Such elements, especially the called short fibers, absorb converted sound energy through mechanical deformation and labyrinth dung. The short fibers can be, for example Plastic fibers such as polyamide fibers, polypropylene fibers etc. act. The elements, especially the short form sern, a length extension of about 0.1 to 2 mm.

The elements can also be incorporated into the latent heat storage material elastically expanded or kompri be lubricated. So the latent heat storage material a desired preload can be applied. The Elements themselves can also be hollow bodies, for example be air-filled hollow bodies. It can also be about elastically reversible elements, such as spheres, such as rubber balls in particular.

With regard to the paraffin, basically all known types of paraffin are used. So especially re Macro paraffins, Intermediate Paraffins and mikrokri stalline waxes. Unless, how described above, just a dry setting is desired, consciously liquid components (low rig melting n- and iso-alkanes and naphthenes)  point. A special cut can also be made be sought, which is chosen so that it is comparative wise is tight. A tight fit means that only chain lengths fewer numbers are included. example such as C14 to C16 or C20 to C23.

As is well known, at least on an industrial scale, if no very special arrangements are made the, the cutting is always in the sense of a frequent distribution results, means the above measure that is by far the largest Share of a given amount of heat storage medium the chain lengths consisting of a few numbers is. In detail, the cutting is based on the he desired melting temperature. Furthermore it has proven to be particularly advantageous the even-numbered, normal C chains (n-alkanes) prefer. These point in the named insulation a surprisingly high heat storage capacity in phases change on. Alternatively or in addition to the through Paraffins obtained by vacuum distillation can also be used synthetic paraffins, using the Fischer-Tropsch process obtained paraffins. This so-called FT paraffins consist primarily of normal Paraffins. More than 90% are usually n-alkanes. The The rest are iso-alkanes. The chain length is from C30 to about C100, with a gradation (on solidification point, EP) from approx. 68 ° C to approx. 105 ° C. To the FT paraffins general reference is also made to the literature, for example place A. Kühnle in fats, soaps, paints 1982, Pages 156 to 162 referenced.

Regarding the copolymers described in the here the latent heat storage material used, there may be different polymers in detail  act. About diblock, triblock, radial block and Multi-block copolymers. The is particularly preferred Use as a Kraton, especially as a "Kraton G" known copolymer. It is thermoplastic rubber. The diblock copolymer can be used in another Detail from styrene and / or ethylene and / or propy len exist. These polymers result in cross-linking stiff gel. The mass obtained in this way can also be obtained described as gelatinous. The latent heat spit chermaterial takes on this overall appearance. This is achieved in that the block copolymers form a three-dimensional network through physika cross-connections. The cross connections occur on these block copolymers by forming submicroscopic small particles of a particle block kes, which can also be addressed as a domain. The This insoluble domain can be cross-linked Factors are reached that cross-connect network density, including the Length of unsolvable block domains, the length of solvable block domains and the number of cross-linked Places.

The copolymers can be used in different proportions the latent heat storage material may be included. Übli Usually they are in a proportion of 5 to 20%, however also under 5% and over 20%, it is about 25% as selected portion additionally mentioned, in the latent heat storage material may be included. This can also the temperature at which the Latent heat storage material the plasticity limit reached. The higher the proportion of copolymers, the the higher the temperature at which that Latent heat storage material is plastically deformable. It is desirable that the plasticity limit in the tempe  working area of a latent heat storage material is not reached. At about 20% shares of such Copolymers in the latent heat storage material results there is a plasticity limit around 140 up to 150 ° C.

Subject of the invention, which is also independent of before standing meaning, but especially in Combine with one or more of the above described features, as far as out below leads, a paraffin-based latent heat storage filter is used with filtrati onsactive microorganisms. Such filters, too Biofilters are already available in different versions forms of becoming known. The microorganisms are arranged on a carrier material. They serve at for example the exhaust air purification and the dismantling of organic substances. The end products remain in the Ideally, carbon dioxide, water and possibly in small amounts of inorganic acids.

The carrier material is usually organic in nature.

Materials such as compost, Root wood, bark mulch or peat. The quality of this However, materials is sometimes a swan subject to changes. They are also mechanically unstable what can lead to settlement phenomena and thus the Effectiveness and service life of the bio filter negatively affected can be pregnant. The organic substance also builds up of these filter materials themselves thus the service life of the bio filter is negative.  

Proceeding from this, the invention is also concerned with the technical problem, an improved Specify biofilter.

This task is solved in that the carrier material al a paraffin or salt based element with latent is heat storage property and that the element is a has roughness adapted to the microorganisms.

This is a carrier material of high heat storage capacity created so that a continuously the same Temperature of the carrier material can be guaranteed can. The carrier material has a simple, bound one Form that is chemically neutral. The carrier material is also washable. The addressed continuously the same Temperature can be determined by the phase change temperature of the used latent heat storage material optimally to the temperature required by the respective microorganisms be adjusted. Fluctuations in the temperature of the cleaning medium, i.e. in particular an exhaust gas ses, can thereby be smoothed respectively do not affect the microorganisms. Insbeson The start-up characteristic of a Biofilters can be improved. About the filter is first preheated until the latent heat spit material is fully loaded and only then on its "Place of work" is spent. Even if that's too pure exhaust gas, for example, only after a certain time reaches its working temperature, whereupon the filter is set by the latent heat storage mate rial also ensured for this period, that the microorganisms have a carrier material with inso find far optimal temperature.  

To make the microorganisms suitable on the carrier material, like the paraffin-based element, is this provided with a roughness that corresponds to the Size structures of the microorganisms or microorganism men lump is adjusted. The roughness lies in the Range from 1 / 100th to 1 mm. In particular, it can also be created in that the elements with a file-like or waffle-like structure are provided.

In particular, such elements can be made from one Latent heat storage material on salt or paraffin ba sis that share in a copolymer like such as a triblock, radial block and / or multiblock Copolymers, optionally in combination with a Has diblock copolymer.

In more detail, this latent heat Storage materials also contain additives as they are listed above have already been described in detail.

Such an element can also be a further carrier contain body on which the latent heat storage material is only attached.

The elastic, resilient properties of a Latent heat storage material as above a proportion of a copolymer is described also to particularly advantageous properties of a such biofilters.

Because such latent heat storage material is increasing the warming also spreads, the arrangement can be so when the elements are all in one Containers are arranged that with increasing  Warming, by expanding the elements, the free Flow cross section reduced and thus a pressure on rose. So there can be some self-excitement tion can be achieved.

In addition, the use of volume-active elements ten, so as elements described above, the with increasing warming a volume increase and with cooling accordingly a volume reduction experienced, a self-cleaning effect of the filter material than be achieved. Unwanted coatings on the Filter material flake off, leaving both a control ter discharge of the deposited pollutants from the exhaust gas electricity as well as an improved nutrient supply of the Microorganism cultures on the surface of the filter materials is made possible.

The invention also relates to a filter with filtration-active microorganisms, the micro organisms are contained in a liquid. in this connection is based on the fact that a or several elements with latent heat storage property are arranged. In particular, these can be made from one Latent heat storage material with a thickener generally, for example with a copolymer such as a assuming initially exist. Preferably from one Latent heat storage material with a copolymer one or more of those described in this application additives.

The invention further relates to a sound absorber ber, consisting of a latent heat storage material based on a phase change material, such as in particular re paraffin, containing a portion of one Thickeners such as, in particular, a copolymer,  for example a triblock, radial block and / or multi block copolymer. The latent heat storage material forms individual spaces leaving space between them Body out. It is an air permeability of sound absorber structure, at least as far as it comes from this Latent heat storage material exists. The Kör can be connected by mutual attachment. In addition, the body can also be used for training a plate body can be arranged. The sound absorber An outer layer in the form of a reverberant or have soundproof cover. Under reverberant Cover becomes a sound reflecting cover, under sound-proof cover, on the other hand, a sound-absorbing, that is, pores or a rough surface Structure understood. The cover can, for example also be a textile layer and / or a foam layer and / or a plastic plate. The bodies can in particular be special balls, for example with a diameter water of 5 mm.

Subject of the invention, alone or in Kombinati on with features such as those previously considered Lich configurations of the latent heat storage material have been explained, meaning too is a text fabric such as a woven fabric, knitted fabric, fleece, knitwear, with textile fibers and a share of latent heat storage material.

Another subject that is also alone or in Combination with one of the characteristics regarding the prescribed latent heat storage material meaning is also a membrane-like porous plastic body, especially based on PTFE or ePTFE, preferably for air and water vapor, but not  for water permeability, the plastic body one Contains part of a filler.

Such fabrics are already in various versions events become known. There are already ver various proposals have been made, tissue out visually their thermal insulation properties through Kombinati to improve with latent heat storage material. So it has become particularly known, microencapsulated Phase change material such as paraffin in one Introduce textile.

However, the known items are either ver equally expensive to manufacture or sufficient not sufficient to meet the requirements Textile such as washability.

In particular, it is for textiles that are water are vapor permeable but not water permeable, also become known, the membrane-like Insert plastic body. In this respect, for example. referred to DE 195 44 912 A1, the disclosure of which hereby, also for the purpose of the features of this Pre-publication in claims of the present application to be included.

Based on the items mentioned The invention further deals with the task such fabrics or plastic bodies with regard to their heat-storing or thermal insulation to improve the properties.

With regard to the first-mentioned subject here focused on that the latent heat storage material from a thickening agent  Phase change material such as paraffin or a salt exists and that the phase change material is encapsulated in the Structure of an elongated filament incorporated is or independently a corresponding phase change slide lament forms. According to the invention, it has been recognized that one with such a thickener as it does Be already above in various details is written, provided phase change material in the Structure of an existing textile filament integrated can be or immediately as a phase change file ment, i.e. as an independent on the phase change mat rial-based thread can be formed.

With regard to such a thread, it can be similar making a candle, repeating a wick is drawn through paraffin to form a textile core the act of diving with the phase change sel material is surrounded.

In the case of the described textile material, in particular preferred that a large mesh size is chosen to to allow unhindered water vapor transport chen.

It is also preferred that the phase change mat rial containing textile layer of a phase change textile material-free textile layer on one or both sides is covered. This is in order to be trans, resulting from wearing to absorb porting water vapor or in between to save.

With regard to the plastic body is the solution Task provided that the filling material from a a phase change material provided with a thickener like paraffin or a salt, and discreet  distributed in or on the plastic body is. Here, the phase change material mentioned to replace or supplement the known fillers be provided in the membrane-like body. Further can the phase change material also on the membranarti arrested against the body, for example under conscious over covering some pores of the plastic body, whereby however, a sufficient proportion remains exposed.

The phase change material can be used in such an art fabric body in particular pressed or shot his. It is essential that the introduction of the Phase change material can be done without that Phase change material in the course of the production of the Plastic part required high temperatures Act.

The plastic body described is around a flexible plastic body that inside a fabric or other textile structure can form a layer.

Regarding the textile is in further detail stipulated that a variety of phase change laments are combined into a fleece. So can either filaments with the corresponding incorporated Phase change material according to known procedures to a fleece, be it a spunbon fleece, one Meltblown fleece etc. summarized or the specially trained phase change filaments can be combined into a fleece in this way become.

It is also preferred that a phase change file ment surrounds a textile yarn. For example, it can be a filament  from a common textile material, such as an art fabric fiber such as polyamide or polyethylene, wrapping be admitted. Or it can be as a soaked filament with different elastic wrapping materials such as polyester or natural fibers.

It can also be provided that the phase change fills a hollow body-like textile yarn. Here, the textile yarn can be tubular be one or more elongated side by side have located cavities.

Furthermore, the phase change filament mentioned can textile yarn impregnated with phase change material be trained.

In particular, the phase change filament can be part of a Core spun yarns. In the manufacture of the non-elastic natural or chemical fiber directly around a stretched one, drink with the phase change material spun the soul thread. The resulting yarn has the look and feel of the spun yarn, d. H. for example wool, cotton, nylon, linen or Silk. Are core spun yarns (based on DIN 60 900 part 1 is pointed out) when weaving or knitting with not Combined elastic yarns, elastic ones are created Fabrics that offer greater comfort. You get one Yarn that stretches or contracts depending on the degree of tension menzieht. Compared to winding spinning can be fine re yarn diameter and larger phase change material parts can be achieved.

For the hollow fibers or fibers mentioned above with multiple cavities are mostly for developed the use in the field of filling materials  Polyester fibers that have up to four hollow in their fiber core own chambers.

The phase change material with a share of Verdic Kmittel is in such hollow fibers in the liquid Condition introduced. Coextrusion may also be used be taken. Last but not least, a capillary These cavities can be used for vacuuming.

The invention also relates to a phase change measure layer of a fabric containing material, which itself through a perforated film layer a phase change provided with a thickener selsel material. Such a situation can continue one or both sides of an absorbent textile layer, which is then preferably phase change material-free, be covered.

The following is the invention regarding the bio filters also explained using the attached drawing, where shows:

Figure 1 is a schematic cross-sectional view of a biofilter in an exhaust duct.

Fig. 2 is a schematic cross-sectional view of a carrier material element of the first embodiment and

Fig. 3 is a schematic external view of a Trägererma material element of the second embodiment;

Fig. 4 is a winding yarn in perspective presen- tation;

Figure 5 is a phase change filament wrapped with conventional yarn.

FIG. 6 the object according to FIG. 5 in a relaxed state;

Fig. 7 is a cored yarn, wherein said non-elastic Che miefasern are spun around a stretched impregnated with paraffin core thread;

Fig. 8 shows the article of Figure 7 in a relaxed state.

Fig. 9 is a schematic representation of a PTFE membrane at approximately two thousand times magnification provided with thickening paraffin; and

FIG. 10 shows an object according to FIG. 9, but shows an expanded PTFE membrane in the same magnification.

An exhaust gas duct 1 with a duct wall 2 , in which a biofilter 3 is inserted, is shown and described, initially with reference to FIG. 1. The biofilter 3 is designed as a drawer filter that can be replaced by means of a handle 4 . For this purpose, the wall 2 of the exhaust duct 1 has a corresponding through opening 5 on one side and opposite mounting projections 6 , 7th

The filter, which is designed as a biofilter, has a container which has an air-permeable mesh cover 8 or 9 on the top and bottom and a circumferential wall 10 on the edge.

Inside the biofilter 3 , carrier material elements 11 are arranged, which in the exemplary embodiments of FIGS. 1 and 3 consist of balls.

It can also be, according to FIG. 2, differently designed elements, such as T-shaped elements 11 '.

The spherical elements mentioned are the embodiment is paraffin-based Latent heat storage material with a share in one Copolymers such as a triblock, radial block and / or Multiblock copolymers, optionally in ver binding with a diblock copolymer.

It can also, as detailed earlier described, a portion of an oil binder and / or a graphite portion and / or a portion of titanium dioxide be provided.

Furthermore, the latent heat storage material can also contained in capillaries of constricted capillary bodies have microwave-active substances, such as alcohol, Water, graphite or the like. Beyond that too a share of short fibers.

In the carrier material 11 'of FIG. 2, a Trägernateri alkern body 12 made of plastic is provided, the surface is coated with latent heat storage material 13 tet. This latent heat storage material 13 has a certain surface roughness in both the elements 11 and 11 '. This is indicated in Fig. 3. For example, it can be a waffle structure. The roughness can also be expressed by the fact that, compared to an idealized flat or circular surface, there is a height deviation in the range of 1/100 to 1 mm with a corresponding change over the circumference.

FIGS. 4 to 10 relate to textile or textile-like materials in which phase change material with a thickener in various forms into sets or is combined added.

The percentage of phase change material in the structure with thickener is about 80 to 85% by mass.

Basically, the use of such phase changes enables sel materials in the textile sector, insofar as it concerns the Body-worn textiles are a constant Microclimate as excess body heat is absorbed can be and in the event that body temperature drops, heat can be returned. Under micro The air space here is between the skin and a first textile layer with the primary influence understand great temperature and humidity.

However, the application goes directly through such textiles worn on the body far out. such Applications can also include window curtains, such as Gardi nen, carpets, wall hangings, etc. concern.

With reference to the figures, FIG. 4 first shows the case in which a soul yarn 14 , which may be smooth or textured or also strongly textured, is impregnated with the paraffin mixed with thickening agent by means of extrusion coating. The impregnated yarn contains at least 50% by weight of phase change material, paraffin in the example.

Next, the soul yarn 14 is wrapped with a phase change filament 15 . This is essentially solely the material consisting of the phase change material mixed with thickening agent, which is extruded in filament or thread form, for example.

In the subject matter of Fig. 5 and 6 there is an elastic yarn 14, which is surrounded by different elastic sheath yarns sixteenth The tensioned state is shown in FIG. 5 and the relaxed state in FIG. 6. The soul yarn 14 cannot be seen in each case, since it is covered by the covering yarns 16 .

It can be seen that in the relaxed state according to FIG. 6, however, there is a strong displacement of the covering yarns 16 into one another.

In the subject matter of FIG. 7 is equally gedehn optionally a ter in the example with paraffin including Ver thickeners impregnated core thread 14, which in the form of a core yarn with conventional non-elasti rule natural or synthetic fibers, exemplarily Darge provides by filaments 17, in flechtartiger form is surrounded. With regard to the yarns 17, it can be, for example, wool, cotton, nylon, linen, silk or the like.

FIG. 8 shows the object according to FIG. 7 in a side view in the relaxed state. It can be seen that not only is there a serpentine arrangement of the wrapping yarns 16 as in the subject of FIG. 6, but also - although not visible in the illustration - there is a twisting of the soul yarn 14 , which is then covered by the wrapping yarns 17 Follow formation of excess lengths.

In the subject matter of FIGS. 9 and 10 is schematically represented TPFE eTPFE or membranes as they are ben in the already mentioned DE 195 44 912 beschrie. Discretely distributed amounts of paraffin with thickener are arranged here - not clearly shown in the drawing - but in such a way that the desired water vapor permeability of the membrane is essentially retained.

As is known, TPFE is Polytetra fluoroethylene.

All features disclosed are (by themselves) fiction sentlich. In the disclosure of the registration is hereby also the disclosure content of the associated / attached Priority documents (copy of pre-registration) full included in content, also for the purpose of characteristics of these documents in claims of the present application to include.

Claims (41)

1. Latent heat storage material based on a phase change material such as paraffin in particular, containing a thickener, in particular a proportion of a copolymer such as a triblock, radial block and / or multiblock copolymer, optionally in combination with a diblock copolymer, characterized by a Proportion of an oil binder. 2. Latent heat storage material according to claim 1 or especially afterwards, characterized by a graphite proportion of. 3. Latent heat storage material after one or more the preceding claims or in particular according thereto, characterized in that the graphite as graphite pulp ver is available. 4. Latent heat storage material after one or more the preceding claims or in particular according thereto, characterized in that the oil binder is a Polyolefin, for example that under the trade name Vybar is known polyolefin. 5. Latent heat storage material after one or more the preceding claims or in particular according thereto, characterized in that the oil binder is a Is silica. 6. Latent heat storage material after one or more the preceding claims or in particular according thereto, characterized in that the oil binder is a is fumed silica.   7. Latent heat storage material after one or more the preceding claims or in particular according thereto, characterized in that the oil binder is a is hydrophobic silica. 8. Latent heat storage material after one or more the preceding claims or in particular according thereto, characterized in that a proportion of the substance is included, which leads to an increase in toughness. 9. Latent heat storage material after one or more the preceding claims or in particular according thereto, characterized in that a proportion of titanium dioxide is provided. 10. Latent heat storage material after one or more ren of the preceding claims or in particular after that, characterized in that the proportion of Titanium dioxide is <0.01 mass%. 11. Latent heat storage material after one or more ren of the preceding claims or in particular afterwards, characterized in that in capillaries of the contained capillary bodies contain microwave acti ve substances are provided. 12. Latent heat storage material after one or more ren of the preceding claims or in particular after that, characterized in that the microwaveak tive substances alcohol, water, graphite or the like are. 13. Latent heat storage material after one or more ren of the preceding claims, characterized net that it contains a proportion of short fibers.   14. Latent heat storage material after one or more ren of the preceding claims, characterized net that the mentioned proportions between 0.1 and 60% by mass are contained in the latent heat storage material. 15. Filter ( 1 ) with filtration-active microorganisms, the microorganisms being arranged on a carrier material ( 12 , 13 ), characterized in that the carrier material ( 12 , 13 ) is a paraffin or salt-based element with latent heat storage property and that the element is a has roughness adapted to the microorganisms. 16. Filters with filtration-active microorganisms, the microorganisms contained in a liquid ten, characterized in that in the liquid one or more elements with latent heat are included. 17. Filter according to claim 16 or in particular according thereto, characterized in that the elements in the rivers liquid are included. 18. Filters according to one or more of the preceding Claims or in particular according thereto, characterized net that the elements in the liquid are heavier than are the liquid. 19. Sound absorber consisting of a latent heat storage material based on a phase change material such as paraffin in particular, containing a proportion of a thickener such as a copo in particular polymers, such as a triblock, radial block and / or Multiblock copolymer, the latent heat storage material  individual, leaving space between them Body forms. 20. Sound absorber according to claim 19 or in particular afterwards, characterized in that the body by mutual attachment. 21. Sound absorber according to one or more of the above claims or in particular according thereto, thereby characterized that the body to form a Plate body are arranged. 22. Sound absorber according to one or more of the above claims or in particular according thereto, thereby characterized that the sound absorber is an outer layer in the form of a reverberant or soft cover having. 23. Sound absorber according to one or more of the above claims or in particular according thereto, thereby characterized that the cover is a textile layer. 24. Sound absorber according to one or more of the above claims or in particular according thereto, thereby characterized that the cover is an open or closed-pore foam layer. 25. Sound absorber according to one or more of the above claims or in particular according thereto, thereby characterized that the cover is a plastic plate te is. 26. Sound absorber according to one or more of the above claims or in particular according thereto, thereby  characterized that the bodies consist of spheres, with a diameter of 5 mm. 27. Textile such as woven, knitted, fleece, knitted goods with textile fibers and a share of latent heat storage material, characterized in that the Latent heat storage material from one with one Thickening agent provided phase change material such as paraf fin or a salt and that the phase change material encapsulated in the structure of a langge stretched filaments or as a phase change filament is formed. 28. Textile according to claim 27 or in particular afterwards, characterized in that a phase change filament of a textile fiber combined with this is arranged. 29. Textile fabric according to one or more of the preceding existing claims or in particular according thereto, thereby characterized that a variety of phase change laments are combined into a fleece. 30. Textile fabric according to one or more of the preceding existing claims or in particular according thereto, thereby characterized that a phase change filament Textile yarn surrounds. 31. Textile fabric according to one or more of the preceding existing claims or in particular according thereto, thereby characterized that a phase change filament Fills in textile yarn. 32. Textile fabric according to one or more of the preceding existing claims or in particular according thereto, thereby  characterized that the phase change filament as having Phase change material impregnated textile yarn is. 33. Textile fabric according to one or more of the preceding existing claims or in particular according thereto, thereby characterized that one with phase change material filled textile yarn is formed. 34. Textile fabric according to one or more of the preceding existing claims or in particular according thereto, thereby characterized that the phase change filament part is a core spun yarn. 35. Textile fabric according to one or more of the preceding existing claims or in particular according thereto, thereby characterized that a large mesh size is chosen is to enable unhindered water vapor transport chen. 36. Textile fabric according to one or more of the preceding existing claims or in particular according thereto, thereby characterized that a the phase change material containing textile layer from a phase change mat rial-free textile layer is covered. 37. Membrane-like, porous plastic body, in particular those based on PTFE or ePTFE, preferably for Air and water vapor, but not permeable to water sig, wherein the plastic body a share in a Contains filler, characterized in that the Filler a phase change material, preferably a phase change measure provided with a thickener material.   38. Multi-layer textile, one layer consisting of one membrane-like, porous plastic body, in particular based on PTFE or ePTFE, preferably for air and water vapor, but not permeable to water, is formed, with the plastic body further Contains part of a filler, characterized net that the filler is a phase change material, preferably one provided with a thickener Phase change material is. 39. Multi-layer textile fabric according to claim 38 or insbe special afterwards, characterized in that the Plastic body having or forming layer as Inner layer is arranged. 40. Plastic body according to claim 37 or multilayer Textile fabric according to claim 38 or in particular according thereto, characterized in that the phase change material discreetly while essentially maintaining the porous Structure of the plastic body, in the plastic body is distributed. 41. Plastic body according to claim 37 or 40 or multilayer textile fabric according to claim 38 or 40 or especially afterwards, characterized in that the Phase change material applied to the plastic body brings, such as laminated, pressed or shot is.