EP3837226A1 - Bitumenprodukt - Google Patents
BitumenproduktInfo
- Publication number
- EP3837226A1 EP3837226A1 EP20775637.0A EP20775637A EP3837226A1 EP 3837226 A1 EP3837226 A1 EP 3837226A1 EP 20775637 A EP20775637 A EP 20775637A EP 3837226 A1 EP3837226 A1 EP 3837226A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grains
- expanded
- bitumen
- bitumen product
- closed
- 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- Withdrawn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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0016—Granular materials, e.g. microballoons
- C04B20/002—Hollow or porous granular materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
- C04B20/06—Expanding clay, perlite, vermiculite or like granular materials
- C04B20/066—Expanding clay, perlite, vermiculite or like granular materials in shaft or vertical furnaces
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1003—Non-compositional aspects of the coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
Definitions
- the invention relates to a bitumen product comprising bitumen and a mineral filler.
- Bitumens are dark-colored, high-molecular-weight obtained from the gentle processing of petroleum
- bitumen products are used to protect parts of buildings against moisture.
- bituminous membranes e.g. bitumen cardboard
- bituminous compounds which are processed in a viscous state, are used to seal the outside of buildings, especially basements. Typically, they are also used in road and airport construction as well as in house and apartment construction, but also, for example, as a noise-insulating and damage-inhibiting protective coating for automobiles.
- bitumen products of interest consist of a base mass of bitumen and other fillers and additives. While asbestos was used as a filler very often in the past, it has been replaced by other fillers, such as expanded perlite, due to its carcinogenic properties. Under the term bloated In this context, perlite is also understood to mean volcanic glass and other rock which has the property of expanding more or less strongly and more or less suddenly when heated. Perlite is a mineral filler which becomes plastic when heated to a critical temperature, whereby the water bound in the perlite, the so-called crystal water, evaporates and thus acts as a blowing agent. Along with the evaporation process, the perlite expands to a multiple of its original volume.
- the filler is added to the base to improve the properties of the bitumen product.
- the addition of the filler has a positive effect on the long-term stability - i.e. the strength, durability and shrinkage properties of the bitumen product.
- the softening point of the bitumen product is also increased.
- expanded perlite as a filler is particularly economical because it is readily available and inexpensive.
- expanded perlite could only be used in bitumen products in ground or crushed form. The grinding or grinding takes place either during the manufacturing process, as a result of the mixing with the base mass of bitumen and the other fillers and additives and thus as an inevitable consequence of the mixing or as a separate process step before the mixing.
- Bitumen products of this type are known, for example, from US Pat. No. 4,168,178 A and US Pat. No. 4,168,179 A, where perlite is used as an asbestos substitute.
- the problem here is that by grinding or grinding the expanded perlite, the density of the resulting filler is unnecessarily increased compared to the non-ground or expanded expanded perlite, which also increases the specific weight of the bitumen product.
- the milled or crushed expanded perlite with its irregular shape has an unfavorable influence on the rheological behavior of the bitumen product during manufacture and processing.
- the present invention is therefore based on the object of providing a bitumen product which overcomes the mentioned disadvantages of the prior art.
- the bitumen product should have a low specific weight and still achieve an adequate sealing effect.
- bitumen product comprising bitumen and a mineral filler in that the mineral filler comprises expanded pearlite grains, which expanded pearlite grains have a closed-cell surface, the expanded pearlite grains with a closed-cell surface being unground.
- pearlite grains with a closed-cell surface expanded due to the formation of water vapor or due to another blowing agent are understood to mean expanded pearlite grains whose surface has no or hardly any edges, webs or irregularities (in particular no surfaces perpendicular to the surface). This not only improves the rheological properties of the bitumen product according to the invention compared to conventional, expanded perlite grains with an open-line surface, but also decreases the density of the filler and thus of the bitumen product according to the invention. Furthermore, a closed-cell surface is associated with good mechanical properties.
- the expanded, closed-cell pearlite grains which are ideally spherical, but can also have the shape of an egg or potato, are thus a type of hollow pearlite body.
- the expanded, closed-cell pearlite grains are characterized in that a volume or a plurality of volumes is or are ideally completely enclosed by a surface, the surface being largely minimal in relation to the volume or the sum of the enclosed volumes.
- an expanded perlite grain is still regarded as closed-cell even if the surface has cracked open in a few places.
- a surface of a puffed pearlite grain is not considered to be split open and thus closed-cell if less than 15%, preferably less than 10%, particularly preferably less than 5%, the surface of the expanded pearlite grains has burst and the rest of the surface is smooth.
- the ratio of particle density to bulk density can be used to differentiate between pearlite grains with an open-cell surface and pearlite grains with a closed-cell surface.
- Particle density is to be understood here as the density of the expanded pearlite grains without a void volume between the expanded pearlite grains.
- a defined volume is filled with expanded pearlite grains.
- the cavities between the expanded perlite grains created in the defined volume are then filled in a controlled manner with a fluid, for example with helium.
- the cavity volume filled with the fluid in a controlled manner is then subtracted from the defined volume. This means that the particle density is the ratio of the weight of the expanded perlite grains to a particle volume that corresponds to the defined volume minus the volume of the void.
- the bulk density is the ratio of the weight of the expanded perlite grains to the defined volume including the void volume.
- the ratio of particle density to bulk density is, for example, about 1.5: 1.
- this ratio is less than 2.0: 1, preferably less than 1.7: 1, particularly preferably less than 1.6: 1.
- this ratio for pearlite grains with an open-cell surface is greater than 3.0: 1.
- Expanded perlite grains with a closed-cell surface have proven to be so stable that if a suitable strength is selected when processing as a lightweight filler in a bitumen product, its surface remains largely undamaged, ie it is used during processing
- the use of the expanded perlite grains with a closed-cell surface as a lightweight filler creates or increases a volume of cavities in the bitumen product according to the invention, whereby the specific weight of the bitumen product according to the invention is significantly reduced. With the reduction in specific weight or density, a high thermal insulation effect is achieved at the same time. In addition, the coefficient of expansion is reduced, thereby reducing the bitumen product according to the invention.
- Maintaining the sealing function i.e. the basic function of the bitumen product as a sealant, is favored with fluctuating outside temperatures.
- bitumen product according to the invention can of course also contain additives, whereby its properties can be optimally adapted to the respective application.
- bitumen product according to the invention can additionally contain rheology additives.
- the bitumen product also comprises one or more polymer plastics, e.g. thermoplastics such as polyethylene (PE), polypropylene (PP) or polyvinyl chloride (PVC), the polymer plastics increasing a plasticity range and ensuring resistance to chemical influences.
- polymer plastics e.g. thermoplastics such as polyethylene (PE), polypropylene (PP) or polyvinyl chloride (PVC), the polymer plastics increasing a plasticity range and ensuring resistance to chemical influences.
- bitumen product according to the invention could contain one or more elastomeric plastics, such as polyurethane (PU) or styrene-butadiene-styrene (SBS), includes.
- PU polyurethane
- SBS styrene-butadiene-styrene
- the majority of the closed-cell expanded pearlite grains in the manufacture, processing and application or use of the bitumen product do not result in any grinding or grinding of the surface.
- a majority is understood to mean that more than 80%, preferably more than 90%, particularly preferably more than 95%, of the closed-cell expanded pearlite grains are unground. It is therefore provided according to the invention that the expanded pearlite grains with a closed-cell surface are not ground.
- bitumen product according to the invention has good rheological properties and a low density.
- a bitumen product according to the invention comprises exclusively closed-cell expanded pearlite grains as lightweight mineral filler.
- the bitumen product also includes other fillers.
- the bitumen product also comprises a mineral filler in the form of open-line expanded pearlite grains. That is to say, the mineral filler comprises both expanded pearlite grains with a closed-cell surface and expanded pearlite grains with an open-cell surface. This has the advantage that the expanded perlite grains with an open-cell surface can get caught between the expanded perlite grains with a closed-cell surface, whereby the expanded perlite grains support one another. Thereby the strength properties of the bitumen product according to the invention can be improved.
- a proportion of expanded perlite grains with a closed-cell surface in% by weight is greater than a proportion of expanded perlite grains with an open-cell surface. That is, the bitumen product according to the invention has a mineral filler which, in terms of weight, comprises a higher proportion of expanded perlite grains with a closed-cell surface than of expanded perlite grains with an open-cell surface. This ensures that the bitumen product according to the invention has a low specific weight and can be produced cost-effectively.
- the expanded pearlite grains with a closed-cell surface have a bulk density of between 90 kg / m 3 and 550 kg / m 3 , preferably between 200 kg / m 3 and 380 kg / m 3 .
- the bulk density of the expanded perlite grains with a closed-cell surface of the bitumen product according to the invention is chosen to be just so low that a sealing function is just not impaired by the production process and in the subsequent application and the corresponding weight saving is achieved.
- one weight unit of the bitumen product according to the invention can do more Sealing volume can be achieved without increasing the expenditure of force for a transport to a place of use.
- the expanded pearlite grains with a closed-cell surface have a particle size of between 5 ⁇ m and 2000 ⁇ m, preferably between 25 ⁇ m and 1200 ⁇ m, particularly preferably between 50 ⁇ m and 600 ⁇ m.
- the particle size is understood to mean a shortest distance within the grain interior of a pearlite grain between those two points on the surface of the pearlite grain which points are most distant from one another. This means that the particle size can be determined independently of the surface shape of the pearlite grains.
- a smaller particle size leads to a higher viscosity of the bitumen product according to the invention, since - assuming a constant volume fraction - the number of pearlite grains increases, as a result of which interactions between the pearlite grains increase.
- a larger particle size in turn leads to a lower viscosity of the bitumen product according to the invention, since the interactions between the pearlite grains decrease. That is, the rheological properties can be adjusted depending on the desired properties of the bitumen product according to the invention through the particle size.
- the expanded perlite grains are present in the bitumen product according to the invention in amounts of between 1% by weight and 20% by weight, preferably in amounts of between 2% by weight and 12% by weight. In a further embodiment of the invention it is provided that the bitumen is present in amounts of between 75% by weight and 85% by weight. An amount of 75% by weight to 85% by weight is optimally suited for the absorption of the expanded pearlite grains with a closed-cell surface.
- bitumen product comprising bitumen and a mineral filler with a bound propellant, which mineral filler comprises expanded, unmilled pearlite grains, the mineral filler being obtainable by a method according to which the pearlite grains
- Heat treatment line preferably by gravity, are conveyed
- a surface of a puffed pearlite grain is then not considered to be cracked and thus closed-cell if less than 15%, preferably less than 10%, particularly preferably less than 5%, of the surface of the expanded pearlite grains has burst and the remaining surface is smooth.
- the controlled expansion of the pearlite grains makes it possible to set the density [kg / m 3 ] or an expansion factor of the expanded pearlite grains for fields of application relevant in practice.
- expanded pearlite grains with different densities and thus different strengths can be produced, all of which nevertheless have closed surfaces and thus enclose the desired cavity volume.
- expansion factor is to be understood as the ratio of the volume of the pearlite grains before the expansion process to the volume of the pearlite grains after the expansion process.
- the “closer” the second temperature is to the critical temperature, the “less” the pearlite grains are expanded, ie the lower the expansion factor of the pearlite grains. In this case, part of the propellant is not used for the expansion process, rather this part remains in bound form in the expanded perlite grains.
- the expansion factor of the pearlite grains also increases.
- the “closer” the second temperature is to the third temperature, the more propellant is available for the expansion process - that is, the less propellant remains in bound form in the pearlite grains.
- the expansion process is controlled by the choice of the second temperature, whereby the density of the expanded pearlite grains can be adjusted in a targeted manner.
- the lower the second temperature selected the higher the density of the expanded pearlite grains.
- the higher the second temperature selected the lower the density of the expanded pearlite grains.
- Since the mechanical strength is directly proportional to the density of the closed-cell expanded pearlite grains, the lower the density of the expanded pearlite grains, the lower the mechanical strength of the expanded pearlite grains, while the higher the density of the expanded pearlite grains, the higher the mechanical strength of the expanded pearlite grains.
- the expanded perlite grains are therefore versatile and can be adapted to the respective application with the help of the method so that the solution is particularly efficient.
- the pearlite grains are first heated to the critical temperature and then to the second temperature while they are being conveyed through the heat treatment section. Above the critical temperature, the pearlite grains, each of which has a structure and a surface, become plastic. In other words, from the critical temperature onwards, the structure and surfaces of the pearlite grains in particular become plastic - i.e. the pearlite grains become soft.
- the majority of pearlite grains begin to expand.
- the majority is understood to mean that more than 80%, preferably 90%, particularly preferably 95%, of the pearlite grains given up begin to expand.
- the pearlite grains applied have properties that are as identical as possible, so that the heating of the pearlite grains when carrying out the method according to the invention causes the same behavior for all pearlite grains, but at least for the majority of the pearlite grains.
- the second temperature lies in a range between the critical temperature and the third temperature, the surface of the pearlite grains bursting at the third temperature. In the area between the critical temperature and the third temperature, the pearlite grains expand as far as possible without bursting.
- the structure and the surfaces of the pearlite grains have a temperature-dependent viscosity. At higher temperatures, the surfaces and the structure of the pearlite grains are less viscous, which is why the pearlite grains are expanded more by the evaporated blowing agent. Below the critical temperature, the viscosity is so high that the structure and the surfaces of the pearlite grains do not become plastic and there is no expansion process. Above the third temperature, the viscosity of the structure and the surfaces of the pearlite grains are again so low, on the other hand the evaporation pressure of the propellant is so high that the surfaces of the pearlite grains burst open during the expansion process. This means that the viscosity, the expansion process and, subsequently, the density and mechanical strength of the expanded pearlite grains are set via the level of the temperature.
- an expansion factor or a density of the expanded granulate can be set in a targeted manner through the level of the second temperature and in such a way that the level of the second temperature is inversely proportional to the density of the expanded granules, ie the lower the second temperature is selected, the higher the density of the expanded granules and vice versa.
- the density is proportional to the mechanical strength.
- the method provides for the perlite grains to be preheated to a preheating temperature below the critical temperature after being introduced into the furnace shaft in preparation for the expansion process, preferably preheated to a maximum of 750 ° C.
- the preheating temperature can also be in the range between 500 ° C and 650 ° C.
- the preheating is used to slowly warm the pearlite grains through to their innermost part before the expansion process. By heating to the preheating temperature, all layers of the pearlite grains - starting from a surface up to a core - are heated slowly and not in a shock.
- the preheating results in a temperature profile that is as uniform as possible within the Forms layers of pearlite grains.
- Limiting the preheating temperature prevents outer layers close to the surface from swelling and forming an insulation layer before the core is heated if the temperature is too rapid to reach the critical temperature.
- the limitation of the preheating temperature serves to prevent the blowing agent from developing so great a pressure that the pearlite grains expand uncontrollably, which causes the surface to burst.
- closed-cell expanded pearlite grains with a specifically set density can be produced, whereby the bitumen product according to the invention is optimal can be adapted to different manufacturing processes and fields of application.
- Expanded perlite grains produced in this way with a closed-cell surface have a stability that enables them to be processed as a filler in a bitumen product as largely undamaged, i.e. when processing in bitumen products there is virtually no grinding or grinding of the surface of the expanded pearlite grains - that is, the mineral ones Expanded, closed-cell perlite grains (with bound water) functioning filler with bound propellant are not ground - which enables the advantageous formation of cavities in the bitumen product already described above and also results in the advantages described above.
- Fig. 3 is a schematic representation of distended
- Fig. 4 is a schematic representation of distended
- Fig. 1 shows a cross section through a bitumen product 1 according to the prior art.
- This can be, for example, bitumen cardboard or a bituminous mass.
- the bitumen product 1 comprises a base mass of bitumen 3 and a light filler made of expanded perlite grains 2 with an open-line surface 5. Further fillers and additives that can also be present in the bitumen product are not shown for the sake of clarity.
- the pearlite grains 2 are only present in ground or ground form due to their low mechanical strength.
- the grinding or grinding takes place during the production process of the bitumen product 1, as a result of mixing the pearlite grains 2 with the bitumen 3.
- the bitumen product 1 according to the prior art thus has perlite grains 2 with an open-line surface 5 or a surface that does not enclose a cavity at all, the bitumen product 1 having unfavorable rheological properties due to the irregular shape of the crushed or ground perlite 2.
- the enclosed cavity volume is comparatively small.
- Fig. 2 shows a cross section through a bitumen product 1 according to the invention, which can also be bitumen cardboard or a bituminous mass with a base mass of bitumen 3 and expanded perlite grains 2 with a closed-cell surface 4. Further fillers and additives that are also in the bitumen product may be present are not shown for the sake of clarity.
- This exemplary embodiment represents an ideal state, since the bitumen product 1 according to the invention exclusively comprises pearlite grains 2 with a closed-cell surface 4 as filler.
- this exemplary embodiment should not exclude the possibility that the bitumen product according to the invention in alternative, not shown exemplary embodiments, in addition to the pearlite grains 2 with closed-cell surface 4, also pearlite grains 2 comprises open-line surface 5, whereby it would be conceivable that the bitumen product 1 according to the invention has more expanded perlite grains 2 with closed-cell surface 4 than expanded perlite grains 2 with open-line surface 5 in terms of weight.
- the stability and strength of the closed-cell 4 expanded perlite 2 enables it not to be ground or ground during the manufacturing process of the bitumen product 1 according to the invention, this cannot be entirely ruled out. Only if the majority - i.e. more than 80%, preferably more than 90%, particularly preferably more than 95% - of the expanded perlite grains 2 is unground, is it guaranteed that the bitumen product 1 according to the invention has good rheological properties and a low density.
- the density of the closed-cell, 4-expanded pearlite grains 2 is important for economic reasons chosen so that a maximum of 5% by volume to 10% by volume of the 4 closed-cell expanded pearlite grains 2 are destroyed in the course of the manufacturing process - the choice of a higher density of the 4 closed-cell expanded pearlite grains 2 would be uneconomical, since the costs are proportional to the density.
- FIG. 4 shows a schematic view of expanded pearlite grains 2 with a closed-cell surface 4 of the bitumen product 1 according to the invention, which expanded pearlite grains 2 have no irregularities.
- FIG. 3 shows a schematic representation of expanded perlite grains 2 with an open-line surface 5.
- the bitumen product 1 according to the invention has numerous positive properties, such as, for example, a lower specific weight, better rheological properties, a better insulation effect, lower thermal expansion and a lower softening point. However, it is considered to be particularly important that the shapes shown schematically in FIG. 4 are essentially retained during the production of the bitumen product 1 according to the invention and that the surfaces of the closed-cell 4 expanded pearlite grains 2 do not break open.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19199058.9A EP3795550B1 (de) | 2019-09-23 | 2019-09-23 | Bitumenprodukt |
PCT/EP2020/076523 WO2021058535A1 (de) | 2019-09-23 | 2020-09-23 | Bitumenprodukt |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3837226A1 true EP3837226A1 (de) | 2021-06-23 |
Family
ID=68062850
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19199058.9A Active EP3795550B1 (de) | 2019-09-23 | 2019-09-23 | Bitumenprodukt |
EP20183642.6A Withdrawn EP3795551A1 (de) | 2019-09-23 | 2019-09-23 | Bitumenprodukt |
EP20775637.0A Withdrawn EP3837226A1 (de) | 2019-09-23 | 2020-09-23 | Bitumenprodukt |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19199058.9A Active EP3795550B1 (de) | 2019-09-23 | 2019-09-23 | Bitumenprodukt |
EP20183642.6A Withdrawn EP3795551A1 (de) | 2019-09-23 | 2019-09-23 | Bitumenprodukt |
Country Status (16)
Country | Link |
---|---|
US (1) | US20220380569A1 (de) |
EP (3) | EP3795550B1 (de) |
CA (1) | CA3154936C (de) |
DK (1) | DK3795550T3 (de) |
ES (1) | ES2924842T3 (de) |
HR (1) | HRP20220964T1 (de) |
HU (1) | HUE059546T2 (de) |
IL (1) | IL282884B2 (de) |
LT (1) | LT3795550T (de) |
MX (1) | MX2022002900A (de) |
PL (1) | PL3795550T3 (de) |
PT (1) | PT3795550T (de) |
RS (1) | RS63504B1 (de) |
SI (1) | SI3795550T1 (de) |
UA (1) | UA127804C2 (de) |
WO (1) | WO2021058535A1 (de) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT262133B (de) * | 1965-03-03 | 1968-05-27 | Perlite Gmbh | Verfahren zur Herstellung von Isolierschichten |
DE2049248C3 (de) * | 1970-10-07 | 1979-01-04 | Deutsche Perlite Gmbh, 4600 Dortmund | Verwendung von Schaumglas- und/oder Blähtongranulaten als kalt einbaubare Dämmschichten |
US4168178A (en) | 1978-01-30 | 1979-09-18 | Gaf Corporation | Asbestos-free bituminous composition |
US4168179A (en) | 1978-01-30 | 1979-09-18 | Gaf Corporation | Bituminous composition |
US5002696A (en) * | 1988-08-01 | 1991-03-26 | Grefco, Inc. | Expanded mineral particles and apparatus and method of production |
AT12878U1 (de) * | 2011-10-10 | 2013-01-15 | Binder Co Ag | Verfahren zum geschlossenzelligen blähen von mineralischen material |
DK2647607T4 (da) * | 2012-04-03 | 2021-03-15 | Sto Se & Co Kgaa | Støbt del og fremgangsmåde til fremstilling af en sådan støbt del |
DE102016205960A1 (de) * | 2016-04-08 | 2017-10-12 | HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter Haftung | Verwendung von geschlossen-porigen Mikro-Kugeln aus expandiertem Perlit als Füllstoff für die Herstellung von Formkörpern für die Gießereiindustrie |
DE102017119371A1 (de) * | 2017-08-24 | 2019-02-28 | Thermprotec Gmbh | Herstellung von Blähsand mit NIR |
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2019
- 2019-09-23 EP EP19199058.9A patent/EP3795550B1/de active Active
- 2019-09-23 LT LTEP19199058.9T patent/LT3795550T/lt unknown
- 2019-09-23 HR HRP20220964TT patent/HRP20220964T1/hr unknown
- 2019-09-23 RS RS20220778A patent/RS63504B1/sr unknown
- 2019-09-23 SI SI201930313T patent/SI3795550T1/sl unknown
- 2019-09-23 ES ES19199058T patent/ES2924842T3/es active Active
- 2019-09-23 DK DK19199058.9T patent/DK3795550T3/da active
- 2019-09-23 PT PT191990589T patent/PT3795550T/pt unknown
- 2019-09-23 PL PL19199058.9T patent/PL3795550T3/pl unknown
- 2019-09-23 HU HUE19199058A patent/HUE059546T2/hu unknown
- 2019-09-23 EP EP20183642.6A patent/EP3795551A1/de not_active Withdrawn
-
2020
- 2020-09-23 WO PCT/EP2020/076523 patent/WO2021058535A1/de unknown
- 2020-09-23 UA UAA202201011A patent/UA127804C2/uk unknown
- 2020-09-23 CA CA3154936A patent/CA3154936C/en active Active
- 2020-09-23 EP EP20775637.0A patent/EP3837226A1/de not_active Withdrawn
- 2020-09-23 MX MX2022002900A patent/MX2022002900A/es unknown
- 2020-09-23 US US17/642,805 patent/US20220380569A1/en active Pending
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2021
- 2021-05-03 IL IL282884A patent/IL282884B2/en unknown
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Publication number | Publication date |
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EP3795551A1 (de) | 2021-03-24 |
RS63504B1 (sr) | 2022-09-30 |
PL3795550T3 (pl) | 2022-10-03 |
CA3154936A1 (en) | 2021-04-01 |
EP3795550A1 (de) | 2021-03-24 |
EP3795550B1 (de) | 2022-06-01 |
ES2924842T3 (es) | 2022-10-11 |
PT3795550T (pt) | 2022-08-17 |
HRP20220964T1 (hr) | 2022-11-11 |
UA127804C2 (uk) | 2024-01-03 |
IL282884A (en) | 2021-06-30 |
IL282884B (en) | 2022-10-01 |
IL282884B2 (en) | 2023-02-01 |
DK3795550T3 (da) | 2022-08-01 |
MX2022002900A (es) | 2022-04-06 |
HUE059546T2 (hu) | 2022-11-28 |
WO2021058535A1 (de) | 2021-04-01 |
SI3795550T1 (sl) | 2022-10-28 |
CA3154936C (en) | 2024-04-02 |
US20220380569A1 (en) | 2022-12-01 |
LT3795550T (lt) | 2022-10-10 |
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