DE9403343U1 - Bituminous cold adhesive - Google Patents
Bituminous cold adhesiveInfo
- Publication number
- DE9403343U1 DE9403343U1 DE9403343U DE9403343U DE9403343U1 DE 9403343 U1 DE9403343 U1 DE 9403343U1 DE 9403343 U DE9403343 U DE 9403343U DE 9403343 U DE9403343 U DE 9403343U DE 9403343 U1 DE9403343 U1 DE 9403343U1
- Authority
- DE
- Germany
- Prior art keywords
- cold adhesive
- bituminous
- weight
- bitumen
- bituminous cold
- 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.)
- Expired - Lifetime
Links
- 239000000853 adhesive Substances 0.000 title claims description 19
- 230000001070 adhesive effect Effects 0.000 title claims description 19
- 239000010426 asphalt Substances 0.000 claims description 13
- 239000002904 solvent Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000013008 thixotropic agent Substances 0.000 claims description 3
- 239000004129 EU approved improving agent Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000013032 Hydrocarbon resin Substances 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 229920006270 hydrocarbon resin Polymers 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011277 road tar Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
- C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
-
- 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
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
-
- 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
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/069—Bituminous materials, e.g. tar, pitch
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
y *i ■y *i ■
Bituminöse Kaltklebemasse
BeschreibungBituminous cold adhesive
Description
Die Neuerung betrifft eine bituminöse Kaltklebemasse, die beispielsweise zur vollflächigen Verklebung von Dämm- und Dichtungslagen bei der Herstellung oder der Reparatur einer Flachdachabdichtung verwendet werden kann.The innovation concerns a bituminous cold adhesive compound that can be used, for example, for the full-surface bonding of insulation and sealing layers when producing or repairing a flat roof seal.
Kaltklebemassen für diese Anwendung sind bekannt. Sie bestehen in ihrer einfachsten Zusammensetzung aus einer Bitumenlösung (Kaltbitumen) mit einem Losungsmittelanteil von 20 bis 30 Gew.-%. Als Lösungsmittel sind beispielsweise Testbenzin, Xylol, Butylacetat und deren Gemische üblich. Kaltbitumen findet außerdem im Straßenbau als Bindemittel Verwendung. Je nach Jahreszeit wird die Viskosität (Straßenteerviskosimeter mit 4-mm-Düse) bei 25 0C auf 120 bis 200 s eingestellt.Cold adhesives for this application are well known. In their simplest composition, they consist of a bitumen solution (cold bitumen) with a solvent content of 20 to 30% by weight. Common solvents include white spirit, xylene, butyl acetate and mixtures thereof. Cold bitumen is also used as a binding agent in road construction. Depending on the time of year, the viscosity (road tar viscometer with 4 mm nozzle) is set at 120 to 200 s at 25 0 C.
Da sich heute die Erkenntnis zunehmend durchsetzt, daß die nicht nachwachsenden natürlichen Rohstoffe nicht unbegrenzt zur Verfügung stehen, ist man betrebt, die Verwendung primärer Rohstoffe möglichst einzuschränken.Since it is increasingly recognized that non-renewable natural resources are not available in unlimited quantities, efforts are being made to limit the use of primary raw materials as much as possible.
Aufgabe der Neuerung ist es daher, eine bituminöse Kaltklebemasse mit ähnlichen Eigenschaften zu entwickeln, bei der die bisher verwendeten primären Rohstoffe teilweise durch Altstoffe ersetzt sind.The aim of the innovation is therefore to develop a bituminous cold adhesive with similar properties, in which the primary raw materials previously used are partially replaced by old materials.
Die Aufgabe wird durch eine bituminöse Kaltklebemasse gelöst, die Recyclat aus aufbereiteten Reststoffen von bituminösen Dachabdichtungen in einer Menge von mindestens 30 Gew.-%, maximal 50 Gew.-% eines zusätzlichen Bitumens und 20 bis 30 Gew.-% eines Lösungsmittels enthält.The task is solved by a bituminous cold adhesive mass that contains recyclate from processed residues of bituminous roof sealing in an amount of at least 30 wt.%, a maximum of 50 wt.% of an additional bitumen and 20 to 30 wt.% of a solvent.
Die Herstellung des Recyclats ist in der DE-A 41 28 und in den deutschen Patentanmeldungen P 42 27 159.2 und P 43 37 198.1 beschrieben. Als Reststoffe können solche aus der Fertigung von Dichtungsbahnen oder vom Abriß alter Dachabdichtungen einschließlich der ggf. anhaftenden Dämmstoffe verwendet werden.The production of the recyclate is described in DE-A 41 28 and in the German patent applications P 42 27 159.2 and P 43 37 198.1. Residual materials that can be used include those from the manufacture of sealing membranes or from the demolition of old roof sealing, including any insulating materials that may be attached to them.
Als zusätzliches Bitumen wird vorzugsweise ein weiches, destillativ gewonnenes Bitumen eingesetzt. Dieses Primärbitumen ist wegen des Absitzverhaltens des gelösten Recyclats erforderlich und verringert gleichzeitiges die Lösungsmittelmenge.A soft bitumen obtained by distillation is preferably used as additional bitumen. This primary bitumen is necessary because of the settling behavior of the dissolved recyclate and at the same time reduces the amount of solvent.
Als Lösungsmittel sind alle für Kaltbitumen übliche Lösungsmittel geeignet. Sie sollen die Viskosität entsprechend der Verarbeitungserfordernisse herabsetzen, aber auch das Trocknen der Kaltklebemasse in einem bestimmten Zeitintervall ermöglichen. Aus diesem Grunde ist der Lösungsmittelanteil in engen Grenzen festgelegt. Bei Abweichungen hiervon müssen entweder längere Trocknungszeiten oder aber ein erhöhter Verarbeitsaufwand in Kauf genommen werden.All solvents commonly used for cold bitumen are suitable as solvents. They should reduce the viscosity in accordance with the processing requirements, but also enable the cold adhesive mass to dry within a certain time interval. For this reason, the solvent content is set within narrow limits. If this is not done, either longer drying times or increased processing effort must be accepted.
Zur Verbesserung der Lagerstabilität kann der Kaltklebemasse auch ein Thixotropierungsmittel zugesetzt werden, wie beispielsweise ein Schichtsilikat.To improve storage stability, a thixotropic agent, such as a layered silicate, can also be added to the cold adhesive.
Die Neuerung wird anhand des nachfolgenden Beispiels näher erläutert. Dabei wurde als Vergleich von einem marktüblichen Kaltkleber mit einem Lösungsmittelanteil von 25 Gew.-% ausgegangen.The innovation is explained in more detail using the following example. The comparison is based on a commercially available cold adhesive with a solvent content of 25% by weight.
63 Gew.-Teile eines Recyclats auf der Basis von geblasenem Bitumen werden in 25 Gew.-Teilen desselben Lösungsmittels wie bei dem Vergleichsprodukt gelöst und mit 10 Gew.-Teilen eines weichen, destillierten Bitumens und 2 Gew.-Teilen eines Thixotropierungsmittels zu einer Kaltklebemasse vergleichbarer Viskosität homogen vermischt. Das Recyclat enthielt neben Fasern und anorganischen Füllstoffen 64 Gew.-% eines geblasenen Bitumens. Durch die gleiche Lösungsmittelart und -menge ist sichergestellt, daß die Trocknungszeiten in gleichem Anwendungsfall ebenfalls vergleichbar sind.63 parts by weight of a recyclate based on blown bitumen are dissolved in 25 parts by weight of the same solvent as the comparison product and homogeneously mixed with 10 parts by weight of a soft, distilled bitumen and 2 parts by weight of a thixotropic agent to form a cold adhesive mass of comparable viscosity. In addition to fibers and inorganic fillers, the recyclate contained 64% by weight of a blown bitumen. The same type and amount of solvent ensures that the drying times in the same application are also comparable.
Ein wichtiges Kriterium ist die Klebekraft der Masse. Als Maß hierfür wurde die Haftfestigkeit der getrockneten Klebenaht bei senkrechtem Abzug bestimmt. Hierzu wurden zwei Stahlplattenflächen mit der Masse verklebt und nach dem Trocknen eine Haftfestigkeit von 0,4 N/mm2 gemessen. Damit ist die Masse nicht nur für eine vollflächige sondern auch für eine streifenweise oder punktförmige Verklebung von Dichtungsbahnen geeignet.An important criterion is the adhesive strength of the compound. The adhesive strength of the dried adhesive seam was determined as a measure of this when pulled vertically. For this purpose, two steel plate surfaces were bonded with the compound and an adhesive strength of 0.4 N/mm 2 was measured after drying. This means that the compound is suitable not only for full-surface bonding of sealing membranes, but also for bonding strips or points.
Die Klebekraft kann außerdem durch übliche kohäsionsverbessernde Zusätze, wie beispielsweise Naturharze oder synthetische Kohlenwasserstoffharze, oder auch durch Verwendung von Recyclat auf der Basis von polymermodifiziertem Bitumen erheblich verbessert werden.The adhesive strength can also be significantly improved by using conventional cohesion-enhancing additives, such as natural resins or synthetic hydrocarbon resins, or by using recycled material based on polymer-modified bitumen.
Anteile von Polystyrol aus der Wärmedämmung im Recyclat wirken sich ebenfalls günstig auf die Klebekraft und die Lagerstabilität aus.The proportion of polystyrene from thermal insulation in the recyclate also has a positive effect on the adhesive strength and storage stability.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9403343U DE9403343U1 (en) | 1994-02-28 | 1994-02-28 | Bituminous cold adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9403343U DE9403343U1 (en) | 1994-02-28 | 1994-02-28 | Bituminous cold adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9403343U1 true DE9403343U1 (en) | 1994-05-05 |
Family
ID=6905250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9403343U Expired - Lifetime DE9403343U1 (en) | 1994-02-28 | 1994-02-28 | Bituminous cold adhesive |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9403343U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5981061A (en) * | 1997-11-07 | 1999-11-09 | Bitutec Bitumen-Technik Service Und Vertriebsgesellschaft Mbh | Joint sealing tape for asphalted areas and joint sealing systems based on the same |
-
1994
- 1994-02-28 DE DE9403343U patent/DE9403343U1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5981061A (en) * | 1997-11-07 | 1999-11-09 | Bitutec Bitumen-Technik Service Und Vertriebsgesellschaft Mbh | Joint sealing tape for asphalted areas and joint sealing systems based on the same |
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