DE3837430A1 - Shaped part - Google Patents
Shaped partInfo
- Publication number
- DE3837430A1 DE3837430A1 DE19883837430 DE3837430A DE3837430A1 DE 3837430 A1 DE3837430 A1 DE 3837430A1 DE 19883837430 DE19883837430 DE 19883837430 DE 3837430 A DE3837430 A DE 3837430A DE 3837430 A1 DE3837430 A1 DE 3837430A1
- Authority
- DE
- Germany
- Prior art keywords
- plastic
- rock
- stones
- acrylic resin
- mixture
- 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.)
- Granted
Links
- 239000004033 plastic Substances 0.000 claims abstract description 28
- 239000004925 Acrylic resin Substances 0.000 claims description 18
- 229920000178 Acrylic resin Polymers 0.000 claims description 18
- 239000011435 rock Substances 0.000 claims description 17
- 238000000465 moulding Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- 239000004848 polyfunctional curative Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 239000004575 stone Substances 0.000 description 31
- 238000005253 cladding Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004566 building material Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
- E04F13/144—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass with an outer layer of marble or other natural stone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete
- B29C67/243—Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length
-
- 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
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/06—Acrylates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K2033/04—Polymers of esters
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/54—Substitutes for natural stone, artistic materials or the like
- C04B2111/542—Artificial natural stone
Abstract
Description
Die Erfindung bezieht sich auf ein Formteil aus teilchenförmigem Gestein und einem Bindemittel.The invention relates to a molded part particulate rock and a binder.
Naturstein-Platten bringen die Form und Farbe von Naturstein am besten zum Ausdruck. Sie sind jedoch durch die hohen Herstellungs- und Transportkosten relativ kostspielig. Auch sind Baustoffe bekannt, mit denen versucht wird, die Form und Farbe von Natursteinen auszunutzen, beispielsweise Waschbeton oder Terrazzo, also ein aus Naturstein und Zement bestehender Beton, dessen Oberfläche nach dem Erhärten geschliffen und poliert wird. Bei diesen Baustoffen bildet der Zement jedoch einen wesentlichen, nicht übersehbaren und wenig ansprechenden Bestandteil. Auch weisen derartige Beton-Formteile ein erhebliches Gewicht auf.Natural stone slabs bring the shape and color of Natural stone best expressed. However, you are through the high manufacturing and transportation costs relative expensive. Building materials are also known with which the shape and color of natural stones is tried exploit, for example, washed concrete or terrazzo, a concrete made of natural stone and cement, ground after hardening and is polished. The cement forms with these building materials however an essential, not overlooked and little appealing component. Also point out such Concrete moldings have a considerable weight.
Aufgabe der Erfindung ist es, ein leichtes Formteil bereitzustellen, bei dem die natürliche Form und Farbe von Natursteinen voll zur Geltung kommt.The object of the invention is a lightweight molded part provide the natural shape and color of natural stones comes into its own.
Dies wird erfindungsgemäß mit einem Formteil nach dem Anspruch 1 erreicht.This is according to the invention with a molded part after Claim 1 reached.
D. h., bei dem erfindungsgemäßen Formteil bildet der vorzugsweise farblose Kunststoff keine Matrix, also zusammenhängende Phase, in die die Steine eingebettet sind, sondern die Steine sind lediglich an ihren Berührungsstellen und anderen Stellen, wo sie sich so nähern, daß sich Kunststoff-Brücken ausbilden konnen, durch den Kunststoff miteinander verklebt. Zugleich sind sie mit einem Kunststoff-Filmüberzug versehen.In other words, in the molded part according to the invention, the preferably colorless plastic no matrix, so contiguous phase in which the stones are embedded are, but the stones are only on theirs Touchpoints and other places where they are approach that plastic bridges can form, glued together by the plastic. Are at the same time cover them with a plastic film.
Als Kunststoff wird vorzugsweise Acrylharz verwendet. Durch Acrylharz erhalten die Steine einen glasklaren Film und damit einen ansprechenden Glanz, der dem nasser Steine entspricht. Zugleich ist Acrylharz wasser-, wetter- und UV-beständig. D. h., die Formteile und der Glanz ihrer Steine sind witterungs- und lichtfest. Da der Kunststoff-Anteil und das spezifische Gewicht von Kunststoff gering sind, sind die erfindungsgemäßen Formteile relativ leicht. Auch hält sich der Herstellungsaufwand durch den geringen Kunststoff-Anteil sowie durch die einfachen Verfahren, mit denen die erfindungsgemäßen Formteile herstellbar sind, in Grenzen.Acrylic resin is preferably used as the plastic. Acrylic resin gives the stones crystal clear Film and thus an appealing shine that the wet Stones. At the same time, acrylic resin is water-, weather and UV resistant. That is, the molded parts and the The gloss of your stones is weatherproof and lightfast. There the plastic content and the specific weight of Plastic are low, are the invention Moldings relatively light. It also lasts Manufacturing effort due to the low proportion of plastic as well as the simple procedures with which the Moldings according to the invention can be produced, within limits.
Damit die Steine lediglich mit einem Film überzogen und an den erwähnten Stellen miteinander verklebt werden, ist das Volumen des Acrylharzes gegenüber dem Volumen der Steine relativ gering. So beträgt das Volumenverhältnis der Steine, bezogen auf deren Schüttdichte, gegenüber dem Acrylharz vorzugsweise 100:1 bis 3:1, im allgemeinen jedoch 20:1 bis 4:1. Bei einem zu geringen Acrylharz-Anteil kann es vorkommen, daß kein geschlossener oder nur ein sehr dünner Acrylharz-Film auf den Steinen gebildet wird und die Verklebung der Steine mit Acrylharz und damit die Festigkeit des Formteils zu wünschen übrig läßt. Ein hoher Acrylharz-Anteil hat eine entsprechende Erhöhung der Kosten und des Gewichts zur Folge.So that the stones are only covered with a film and are glued together at the points mentioned, is the volume of the acrylic resin versus the volume the stones are relatively small. That's how it is Volume ratio of the stones, based on their Bulk density, preferably 100: 1 over the acrylic resin to 3: 1, but generally 20: 1 to 4: 1. At too little acrylic resin can occur, that no closed or just a very thin one Acrylic resin film is formed on the stones and the Gluing the stones with acrylic resin and thus the Strength of the molding leaves something to be desired. A high acrylic resin content has a corresponding increase the cost and weight.
In der Praxis haben sich als Acrylharz "Plexit 55" und "Agrefix" von der Firma Rohm als geeignet erwiesen; ferner Acrylharzlacke. In practice, "Plexit 55" and "Agrefix" from Rohm has proven to be suitable; also acrylic resin paints.
Als Gestein werden erfindungsgemäß vorzugsweise Kies, Splitt oder Kieselsteine verwendet.According to the invention, gravel is preferably used as rock, Grit or pebbles used.
Der Acrylharz-Anteil hängt auch von der Korngröße des Gesteins ab. D. h., bei einem feinen Kies mit einer Korngröße von z. B. 3 mm ist der Acrylharz-Mindestgehalt aufgrund der großen Gesamtoberfläche des Kieses und der großen Zahl der miteinander zu verklebenden Steine größer als bei großen Kieselsteinen mit einer Korngröße von mehreren Zentimetern.The acrylic resin content also depends on the grain size of the Rock. That is, in the case of fine gravel with a Grain size of z. B. 3 mm is the minimum acrylic resin content due to the large total surface area of the gravel and the large number of stones to be glued together larger than with large pebbles with a grain size of several centimeters.
Die Korngröße des Gesteins liegt erfindungsgemäß vorzugsweise zwischen 2 mm und 10 cm, insbesondere 0,5 bis 5 cm. Bei Korngrößen unter 2 mm wird der Acrylharz-Anteil relativ hoch und dadurch das Formteil entsprechend aufwendig. Auch leidet dann das Aussehen, da keine großen zusammenhängenden glänzenden Steinflächen vorliegen.The grain size of the rock is according to the invention preferably between 2 mm and 10 cm, in particular 0.5 up to 5 cm. For grain sizes below 2 mm Acrylic resin content relatively high and therefore the molded part accordingly expensive. The appearance also suffers because no big coherent shiny Stone surfaces are present.
Andererseits nimmt die Festigkeit ab, je größer die Körnung des Gesteins ist, da die Zahl der Stellen, mit denen die Steine durch das Acrylharz verbunden werden, gering ist. Formteile aus Steinen mit großer Körnung müssen daher eine entsprechende Dicke aufweisen, wenn sie eine bestimmte Festigkeit besitzen sollen.On the other hand, the greater the strength decreases Grain of the rock is, since the number of digits, with to which the stones are connected by the acrylic resin, is low. Molded parts made of stones with large grain must therefore have an appropriate thickness if they should have a certain strength.
Es können auch verschiedene Gesteinslagen vorgesehen werden, also z. B. eine Lage mit Steinen grober Körnung außen am Formteil zur besseren Optik und an der Rückseite des Formteils eine Lage mit Steinen kleinerer Körnung zur Erhöhung der Festigkeit des Formteils. Different layers of rock can also be provided become, e.g. B. a layer with stones of coarse grain on the outside of the molding for a better look and on the Back of the molding a layer with stones smaller Grain to increase the strength of the molded part.
Als besonders ansprechend haben sich als Gestein Kieselsteine erwiesen, also die vom fließenden Wasser zurückgelassenen Steine. Diese Steine besitzen im allgemeinen eine Körnung von 1 bis 5 cm und weisen die verschiedensten Farben und Muster auf. Gegebenenfalls kann auch eine bestimmte Farb- oder Musterauswahl der Steine getroffen werden.Have been particularly appealing as a rock Pebbles proved, that is from the flowing water stones left behind. These stones have in generally a grain size of 1 to 5 cm and have the different colors and patterns. Possibly can also have a specific color or pattern selection Stones are hit.
Die erfindungsgemäßen Formteile können als Platten ausgebildet sein, z. B. als Wandplatten für Fassadenverkleidungen oder Wandverkleidungen wie in Naßräumen, oder als Weg- oder Grabeinfassung verwendet werden. Sie können jedoch auch in anderer Art geformt und einsetzbar sein, z. B. als Bordsteine, Tröge, Masten oder dgl. Die Körnung der Steine des erfindungsgemäßen Formteils wird dabei dem Verwendungszweck angepaßt. D. h., für Platten zur Fassadenverkleidung können relativ grobe Steine eingesetzt werden, während z. B. für Wandplatten für Naßräume ein feiner Kies bevorzugt eingesetzt wird.The moldings according to the invention can be used as plates be trained, e.g. B. as wall panels for Facade cladding or wall cladding as in Wet rooms, or used as a path or grave border will. However, they can also be shaped in a different way and can be used, e.g. B. as curbs, troughs, masts or the like. The grain of the stones of the invention The molded part is adapted to the intended use. D. that is, for cladding panels can be relative Coarse stones are used while z. B. for Wall plates for wet rooms prefer a fine gravel is used.
Die Herstellung der erfindungsgemäßen Formteile ist denkbar einfach.The production of the molded parts according to the invention is very easy.
So können die gewaschenen, trockenen Steine in eine Form gegeben und darin gerüttelt werden, worauf die Form mit einem Gemisch aus dem unausgehärteten Kunststoff, also vorzugsweise Acrylharz und Härter gefüllt wird. Nach dem Füllen der Form wird der Kunststoff abgelassen. Anschließend wird der Kunststoff, der die Oberfläche der Steine benetzt und an deren Berührungsstellen Brücken bildet, ausgehärtet, z. B. durch Erwärmung, UV-Strahlung und dgl., je nach Art des Kunststoffs bzw. des Härters. This way the washed, dry stones can be put into a mold given and shaken in it, whereupon the form with a mixture of the uncured plastic, so preferably acrylic resin and hardener is filled. After this The plastic is drained to fill the mold. Then the plastic covering the surface of the Wet stones and bridges at their contact points forms, cured, e.g. B. by heating, UV radiation and the like, depending on the type of plastic or hardener.
Statt dessen können die Steine auch z. B. in einer Mischtrommel mit dem Gemisch aus unausgehärtetem Kunststoff und Härter benetzt werden, worauf die so benetzten Steine in eine Form gegeben und unter Rütteln verdichtet werden, bevor der Kunststoff ausgehärtet wird.Instead, the stones can also, for. B. in one Mixing drum with the mixture of uncured Plastic and hardener are wetted, after which the so wetted stones placed in a mold and shaken be compacted before the plastic is cured.
Auch ist es möglich, die Steine mit dem Gemisch aus unausgehärtetem Kunststoff und Härter zu besprühen, bevor oder während sie in die Form eingebracht werden. Überschüssiger Kunststoff kann vor dem Aushärten auch entfernt werden, beispielsweise mit einer Zentrifuge. Um die Kunststoff-Menge herabzusetzen, kann dem Gemisch aus nicht ausgehärtetem Kunststoff und Härter auch ein Verdünner beigegeben werden.It is also possible to mix the stones with the mixture spray uncured plastic and hardener, before or while they are being placed in the mold. Excess plastic can also harden before curing be removed, for example with a centrifuge. Around The mixture can reduce the amount of plastic uncured plastic and hardener too Thinner can be added.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19883837430 DE3837430A1 (en) | 1988-11-04 | 1988-11-04 | Shaped part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19883837430 DE3837430A1 (en) | 1988-11-04 | 1988-11-04 | Shaped part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3837430A1 true DE3837430A1 (en) | 1990-05-10 |
| DE3837430C2 DE3837430C2 (en) | 1990-08-30 |
Family
ID=6366469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19883837430 Granted DE3837430A1 (en) | 1988-11-04 | 1988-11-04 | Shaped part |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3837430A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998029356A2 (en) * | 1996-12-27 | 1998-07-09 | Quarz-Color Steidle Baustoff Gmbh | Outer coating with water-permeable properties |
| WO2002096824A1 (en) * | 2001-05-29 | 2002-12-05 | Gojo, Naamloze Vennootschap | Wall element, as well as covering for walls, wall elements and the like |
| EP1827783A1 (en) * | 2004-12-08 | 2007-09-05 | Cheil Industries Inc. | Method and apparatus for making composite solid surface article and composite solid surface article containing large particles |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19701420A1 (en) * | 1996-12-27 | 1998-07-09 | Quarz Color Steidle Baustoff G | Exterior covering with water-permeable properties |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1927576A1 (en) * | 1968-05-31 | 1969-12-04 | Haniel Ag Franz | Insulating building materials produced by mixing non |
| DE2904412B2 (en) * | 1978-02-06 | 1981-01-22 | Grefco, Inc., Bala Cynwyd, Pa. (V.St.A.) | Thermal loose-fill insulation made from particles of expanded perlite made sticky by a binder |
| DE3344783A1 (en) * | 1983-12-10 | 1985-06-20 | Götz Bauing.(grad.) 2000 Hamburg Marquardt | MATERIAL FOR PRODUCING A LIQUID-DERIVING LAYER |
| AT385269B (en) * | 1985-01-07 | 1988-03-10 | Leonhartsberger Johann | Polymer-containing brick composition |
| EP0271921A2 (en) * | 1986-12-19 | 1988-06-22 | Stotmeister GmbH | Decorative gravel-flooring material |
| DE3603433C2 (en) * | 1985-02-19 | 1988-07-28 | Basf Ag, 6700 Ludwigshafen, De |
-
1988
- 1988-11-04 DE DE19883837430 patent/DE3837430A1/en active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1927576A1 (en) * | 1968-05-31 | 1969-12-04 | Haniel Ag Franz | Insulating building materials produced by mixing non |
| DE2904412B2 (en) * | 1978-02-06 | 1981-01-22 | Grefco, Inc., Bala Cynwyd, Pa. (V.St.A.) | Thermal loose-fill insulation made from particles of expanded perlite made sticky by a binder |
| DE3344783A1 (en) * | 1983-12-10 | 1985-06-20 | Götz Bauing.(grad.) 2000 Hamburg Marquardt | MATERIAL FOR PRODUCING A LIQUID-DERIVING LAYER |
| AT385269B (en) * | 1985-01-07 | 1988-03-10 | Leonhartsberger Johann | Polymer-containing brick composition |
| DE3603433C2 (en) * | 1985-02-19 | 1988-07-28 | Basf Ag, 6700 Ludwigshafen, De | |
| EP0271921A2 (en) * | 1986-12-19 | 1988-06-22 | Stotmeister GmbH | Decorative gravel-flooring material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998029356A2 (en) * | 1996-12-27 | 1998-07-09 | Quarz-Color Steidle Baustoff Gmbh | Outer coating with water-permeable properties |
| WO1998029356A3 (en) * | 1996-12-27 | 1998-08-13 | Quarz Color Steidle Baustoff G | Outer coating with water-permeable properties |
| WO2002096824A1 (en) * | 2001-05-29 | 2002-12-05 | Gojo, Naamloze Vennootschap | Wall element, as well as covering for walls, wall elements and the like |
| EP1827783A1 (en) * | 2004-12-08 | 2007-09-05 | Cheil Industries Inc. | Method and apparatus for making composite solid surface article and composite solid surface article containing large particles |
| EP1827783A4 (en) * | 2004-12-08 | 2009-07-22 | Cheil Ind Inc | Method and apparatus for making composite solid surface article and composite solid surface article containing large particles |
| US8476339B2 (en) | 2004-12-08 | 2013-07-02 | Cheil Industries Inc. | Method and apparatus for making composite solid surface article and composite solid surface article containing large particles |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3837430C2 (en) | 1990-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: KONTRINER, MANFRED IMSER, FRANZ, SALZBURG, AT |
|
| 8381 | Inventor (new situation) |
Free format text: KONTRINER, MANFRED, SALZBURG, AT |
|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |