DE19641589A1 - Insulating material made from straw and potato pulp and/or waste paper - Google Patents
Insulating material made from straw and potato pulp and/or waste paperInfo
- Publication number
- DE19641589A1 DE19641589A1 DE1996141589 DE19641589A DE19641589A1 DE 19641589 A1 DE19641589 A1 DE 19641589A1 DE 1996141589 DE1996141589 DE 1996141589 DE 19641589 A DE19641589 A DE 19641589A DE 19641589 A1 DE19641589 A1 DE 19641589A1
- Authority
- DE
- Germany
- Prior art keywords
- straw
- waste paper
- insulating material
- lignin
- pulp
- 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.)
- Ceased
Links
- 239000010902 straw Substances 0.000 title claims abstract description 15
- 239000010893 paper waste Substances 0.000 title claims abstract description 14
- 244000061456 Solanum tuberosum Species 0.000 title claims abstract description 12
- 235000002595 Solanum tuberosum Nutrition 0.000 title claims abstract description 12
- 239000011810 insulating material Substances 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000012774 insulation material Substances 0.000 claims description 8
- 229920001732 Lignosulfonate Polymers 0.000 claims description 7
- 229920005610 lignin Polymers 0.000 claims description 7
- 108090000790 Enzymes Proteins 0.000 claims description 6
- 102000004190 Enzymes Human genes 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 108010059820 Polygalacturonase Proteins 0.000 claims description 3
- 108010093305 exopolygalacturonase Proteins 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 102000005575 Cellulases Human genes 0.000 claims description 2
- 108010084185 Cellulases Proteins 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 150000001340 alkali metals Chemical class 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 229920005611 kraft lignin Polymers 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 240000002791 Brassica napus Species 0.000 description 2
- 235000004977 Brassica sinapistrum Nutrition 0.000 description 2
- 108010029541 Laccase Proteins 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 235000021395 porridge Nutrition 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 108010027529 Bio-glue Proteins 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000219146 Gossypium Species 0.000 description 1
- 241000208202 Linaceae Species 0.000 description 1
- 240000009043 Linum lewisii Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 102000003992 Peroxidases Human genes 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003641 microbiacidal effect Effects 0.000 description 1
- 229940124561 microbicide Drugs 0.000 description 1
- 239000002855 microbicide agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 108040007629 peroxidase activity proteins Proteins 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C04B30/00—Compositions for artificial stone, not containing binders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
-
- 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
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Acoustics & Sound (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Dämmstoff gemäß dem Hauptanspruch sowie ein Verfahren zu seiner Herstellung und seine Verwendung.The present invention relates to an insulating material according to the Main claim as well as a process for its manufacture and its use.
Ein Dämmstoff, enthaltend pflanzliche Fasern, wie Stroh, Flachs, Raps und dergleichen, Altpapier, Ligninsulfonat und nach Be darf weitere Zusatzstoffe, ist bekannt (DE 42 29 368 A1) ist bekannt. Ein solcher Dämmstoff benötigt ein Bindemittel, um die erforderliche Festigkeit zu erhalten. Diese Funktion erfüllt das Ligninsulfonat, gegebenenfalls in Kombination mit weiteren bindenden Bestandteilen.An insulating material containing vegetable fibers such as straw, flax, Rapeseed and the like, waste paper, lignin sulfonate and after Be may be other additives, is known (DE 42 29 368 A1) known. Such an insulation material requires a binder to to maintain the required strength. this function fulfills the lignin sulfonate, optionally in combination with other binding components.
Aufgabe der vorliegenden Erfindung ist es, einen Dämmstoff zu schaffen, in welchem auf den Einsatz von Ligninsulfonat verzichtet oder dessen Einsatz zumindest weit gehend reduziert werden kann.The object of the present invention is an insulating material to create in which on the use of lignin sulfonate waived or its use at least far can be reduced.
Gelöst wird diese Aufgabe erfindungsgemäß durch einen Dämm stoff gemäß dem Hauptanspruch. Die Unteransprüche betreffen bevorzugte Ausgestaltungen der Erfindung.According to the invention, this object is achieved by an insulation substance according to the main claim. The subclaims concern preferred embodiments of the invention.
Die vorliegende Erfindung bietet eine Verwertungsmöglichkeit für das in großen Mengen anfallende Stroh sowie für Altpapier und Kartoffelpülpe, die als Abfälle zur Verwertung bezeichnet werden. Kartoffelpülpe ist ein Abfallprodukt der Stärkeherstel lung und steht als wäßriger Brei oder in getrockneter Form zur Verfügung. Auch Altpapier fällt in solchen Mengen an, daß seine Verwertung häufig schwierig ist.The present invention offers a possibility of utilization for the large amounts of straw and waste paper and potato pulp, which is referred to as waste for recycling will. Potato pulp is a waste product of the starch manufacturer and is available as an aqueous slurry or in dried form Available. Waste paper also accumulates in such quantities that its Recovery is often difficult.
Das eingesetzte Altpapier wird vorzugsweise zerkleinert einge setzt, z. B. mit einer Teilchengröße von ca. 0,1 bis 5 mm. Es wird mit Wasser zu einem Brei vermischt, ggf. mit ebenfalls eingesetzter Kartoffelpülpe. The waste paper used is preferably shredded sets, e.g. B. with a particle size of about 0.1 to 5 mm. It is mixed with water to a pulp, if necessary also with used potato pulp.
Das Stroh wird mit dem Brei zusammen in eine Form gegeben, und zu dem Dämmstoff verformt. Dabei kann der Formkörper z. B. in eine Gitterrostform gegeben werden, aus der das überschüs sige Wasser abtropfen kann. Das Entfernen des überschüssigen Wassers kann durch Anlegen eines Vakuums beschleunigt werden. Nach dem Trocknen ist der erhaltene Dämmstoff so formstabil, daß er der Form entnommen werden kann. Nach Bedarf wird er nachgetrocknet.The straw is put into a mold with the porridge, and deformed into the insulation material. The molded body can, for. B. be placed in a grid form from which the excess water can drip off. Removing the excess Water can be accelerated by applying a vacuum. After drying, the insulation material obtained is so dimensionally stable that that it can be removed from the form. If necessary, he will post-dried.
Der Dämmstoff kann zusätzlich weitere pflanzliche Fasern enthalten, wie z. B. Flachs, Raps, Baumwollstroh, Kokosfasern oder andere faserige Pflanzenprodukte, auch Abfallstoffe.The insulation material can also contain other vegetable fibers included, such as B. flax, rapeseed, cotton straw, coconut fibers or other fibrous plant products, including waste materials.
Dem Dämmstoff können Ligninprodukte zugegeben werden, obwohl dies zur Ausbildung einer hinreichenden Festigkeit nicht unbedingt erforderlich ist. Ligninprodukte fallen als Abfälle bei der Zellstoffproduktion an, wie z. B. Lignin sulfonat oder Alkali- bzw. Kraftlignin. Diese Ligninpro dukte können auch durch Zugabe von phenoloxidierenden Enzymen, wie Laccase, Peroxidase oder dergleichen zu einem sogenannten Bioleim verarbeitet werden.Lignin products can be added to the insulation, though this does not lead to the formation of sufficient strength is absolutely necessary. Lignin products fall as Waste in pulp production such. B. Lignin sulfonate or alkali or kraft lignin. This ligninpro Products can also be added by adding phenol oxidizing Enzymes such as laccase, peroxidase or the like into one so-called bio-glue are processed.
Die Menge des eingesetzten Altpapiers kann bis zu 70 Gew.-%, vorzugsweise bis zu 30 Gew.-% und insbesondere 10 bis 20 Gew.-% betragen.The amount of waste paper used can be up to 70% by weight, preferably up to 30% by weight and in particular 10 to 20 % By weight.
Die Menge der eingesetzten Kartoffelpülpe kann ebenfalls bis zu 70 Gew.-% betragen, wobei die bevorzugten Einsatzmengen bei bis zu 30 Gew.-%, insbesondere zwischen 10 und 20 Gew.-% liegen.The amount of potato pulp used can also be up to 70% by weight, the preferred amounts being used at up to 30% by weight, in particular between 10 and 20% by weight lie.
Beim Einsatz von Altpapier bzw. Kartoffelpülpe muß die Menge des eingesetzten Wassers so groß sein, daß sich diese beiden Ausgangsstoffe zu einem Brei verarbeiten lassen, der in Formen eingefüllt werden kann und eine gute Vermischung der Ausgangsstoffe gewährleistet. Die Wassermenge kann dabei ein Vielfaches der Menge der Ausgangsprodukte betragen, sollte aber zur Vermeidung unnötigen Trocknungsaufwands möglichst niedrig gehalten werden.When using waste paper or potato pulp, the quantity must be of the water used be so large that these two Have the raw materials processed into a slurry, which in Shapes can be filled and mixed well guaranteed of the raw materials. The amount of water can should be a multiple of the amount of the starting products but to avoid unnecessary drying effort if possible be kept low.
Beim Einsatz von Ligninprodukten können diese in einer Menge bis zu 30 Gew.-%, vorzugsweise bis zu 15 Gew.-%, ein gesetzt werden.When using lignin products, they can be used in one Amount up to 30 wt .-%, preferably up to 15 wt .-% be set.
Alle obigen Angaben in Gew.-% beziehen sich auf Trockensub stanz.All of the above data in% by weight relate to dry sub punch.
Wird ein phenoloxidierendes Enzym eingesetzt, so ist es bevorzugt, solche Mengen einzusetzen, daß die verwendeten Ligninprodukte vollständig oxidiert und polymerisiert werden.If a phenol oxidizing enzyme is used, it is preferred to use such amounts that the used Lignin products are completely oxidized and polymerized.
Zusätzlich zu phenoloxidierenden Enzymen können weitere Enzyme eingesetzt werden, die die Inhaltsstoffe der Be standteile, z. B. des Strohs, enzymatisch angreifen können, wie beispielsweise Cellulasen oder Pectinasen.In addition to phenol oxidizing enzymes, others can Enzymes are used that contain the ingredients of Be components, e.g. B. the straw, can attack enzymatically, such as cellulases or pectinases.
Die erfindungsgemäßen Dämmstoffe haben gute Isolations eigenschaften und Festigkeiten, die die hierfür geltenden DIN-Normen erfüllen und im Bauwesen einsetzbar sind.The insulation materials according to the invention have good insulation properties and strengths that apply to this Meet DIN standards and can be used in construction.
Die Erfindung wird nachfolgend durch Beispielenäher erläutert.The invention is illustrated below by examples explained.
5544 g unbehandelte gefrorene Kartoffelpülpe wurde mit 10 l Wasser und 1 Gew.-% Mergal (ein Mikrobiozid) vermischt und über Nacht im Kühlschrank stehen gelassen. Die Masse wurde mit 864 g Stroh und 834 g Altpapier vermischt (Verhältnis Pülpe : Altpapier : Stroh, Trockensubstanz 1 : 1 : 1) und 5 l warmes Wasser hinzugefügt. Nach gutem Durchmischen wurde der Brei 2 Stunden bei Zimmertemperatur stehengelassen. Aus dem Brei wurden Probekörper mit den Abmessungen 190×190×60 mm hergestellt und getrocknet.5544 g of untreated frozen potato pulp was mixed with 10 l Water and 1% by weight mergal (a microbicide) mixed and left in the refrigerator overnight. The mass was mixed with 864 g straw and 834 g waste paper (Ratio pulp: waste paper: straw, dry matter 1: 1: 1) and 5 liters of warm water added. After thorough mixing the porridge was left at room temperature for 2 hours. Test pieces measuring 190 × 190 × 60 mm were made from the slurry made and dried.
Die Probekörper hatten eine mittlere Rohdichte von 156,35 kg . m-3 und eine Wärmeleitfähigkeit von 0,0550 W . m-1 . K-1.The test specimens had an average bulk density of 156.35 kg. m -3 and a thermal conductivity of 0.0550 W. m -1 . K -1 .
Nach den Verfahren von Beispiel 1 wurden 5345 g Kartoffelpülpe 864 g Stroh und 834 g Altpapier (Verhältnis Trockensubstanz 1 : 1 : 1) mit 10 l Wasser in einer Wanne gemischt und eine Stunde stehen gelassen. Die Kartoffelpülpe war vorher wie folgt enzymatisch vorbehandelt worden.Following the procedures of Example 1, 5345 g of potato pulp 864 g straw and 834 g waste paper (dry matter ratio 1: 1: 1) mixed with 10 l of water in a tub and for one hour ditched. The potato pulp was previously as follows have been enzymatically pretreated.
Die Pülpe wurde in einem Motortischkutter mechanisch zerklei nert und dabei 10 Gew.-% Pectinase untergemischt. Die Pülpe wurde in einem Fermenter über Nacht unter Rühren bei 40°C fermentiert. Der mittlere Trockensubstanzgehalt der Pülpe betrug 14,5 Gew.-%.The pulp was mechanically chopped up in a motor table cutter nert and mixed with 10 wt .-% pectinase. The pulp was in a fermenter overnight with stirring at 40 ° C. fermented. The average dry matter content of the pulp was 14.5% by weight.
Aus der Mischung wurden wie in Beispiel 1 Probekörper herge stellt. Ihre mittlere Rohdichte betrug 183,05 kg . m-3 und die Wärmeleitfähigkeit 0,0501 W . m-3 . K-1. Test specimens were produced from the mixture as in Example 1. Their average bulk density was 183.05 kg. m -3 and the thermal conductivity 0.0501 W. m -3 . K -1 .
116,5 g Kraftlignin und 116,5 g wasserlösliches Ligninsulfonat wurden in 1 l Wasser 1 Std. gelöst und die Wassermenge auf 18 l ergänzt. 1166 g Stroh und 1125 g Altpapier zugemischt und die Mischung 2,5 Std. bei Zimmertemperatur stehen gelassen. Aus der Mischung wurden wie in Beispiel 1 Probekörper herge stellt mit folgenden Eigenschaften: Mittlere Rohdichte 155,95 kg . m-3; Wärmeleitfähigkeit 0,0511 W . m-1 . K-1.116.5 g of kraft lignin and 116.5 g of water-soluble lignin sulfonate were dissolved in 1 l of water for 1 hour and the amount of water made up to 18 l. 1166 g of straw and 1125 g of waste paper were mixed in and the mixture was left to stand at room temperature for 2.5 hours. Test specimens were produced from the mixture as in Example 1 with the following properties: Average bulk density 155.95 kg. m -3 ; Thermal conductivity 0.0511 W. m -1 . K -1 .
1 l Mc Ilvain Puffer (pH 7) wurde mit 140 ml Laccase (6400 Unit/ml), 116,5 g Kraftlignin und 116,5 g Ligninsulfonat ver mischt und über Nacht stehen gelassen und dann mit 18 l Wasser aufgefüllt. Die Flüssigkeit wurde mit 1166 g Stroh und 1125 g Altpapier gut durchgeknetet und 2 Std. bei Zimmer temperatur stehen gelassen. Aus der Masse wurden wie in Beispiel 1 Probekörper hergestellt mit folgenden Eigenschaften: Mittlere Rohdichte 157,20 kg . m-3; Wärmeleitfähigkeit 0,0523 W . m-1 . K-1.1 l of Mc Ilvain buffer (pH 7) was mixed with 140 ml of laccase (6400 unit / ml), 116.5 g of kraft lignin and 116.5 g of lignin sulfonate and left to stand overnight and then made up with 18 l of water. The liquid was thoroughly kneaded with 1166 g of straw and 1125 g of waste paper and left to stand at room temperature for 2 hours. Test specimens were produced from the mass as in Example 1 with the following properties: Average bulk density 157.20 kg. m -3 ; Thermal conductivity 0.0523 W. m -1 . K -1 .
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996141589 DE19641589A1 (en) | 1996-10-08 | 1996-10-08 | Insulating material made from straw and potato pulp and/or waste paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996141589 DE19641589A1 (en) | 1996-10-08 | 1996-10-08 | Insulating material made from straw and potato pulp and/or waste paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19641589A1 true DE19641589A1 (en) | 1998-04-16 |
Family
ID=7808258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1996141589 Ceased DE19641589A1 (en) | 1996-10-08 | 1996-10-08 | Insulating material made from straw and potato pulp and/or waste paper |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19641589A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19811807A1 (en) * | 1998-03-18 | 1999-09-23 | Mbr Agrar Service Taunus Weste | Vegetable material insulating elements, preferably building board for construction thermal and sound insulation |
| WO2020089573A1 (en) * | 2018-11-01 | 2020-05-07 | Chip(s) Board Ltd | Method for producing a moulded article |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4317575A1 (en) * | 1992-06-05 | 1994-12-01 | Gotthardt Thieme | Insulating material based on raw materials and fibrous raw materials and process for its production |
| DE4340518A1 (en) * | 1993-11-29 | 1995-06-01 | Pfleiderer Unternehmensverwalt | Moulded prods., esp. fibreboard |
| DE19509633A1 (en) * | 1995-03-17 | 1996-09-19 | Mayer Frank Prof Dr | Potato pulp adhesive and the manufacture and use of the adhesive |
-
1996
- 1996-10-08 DE DE1996141589 patent/DE19641589A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4317575A1 (en) * | 1992-06-05 | 1994-12-01 | Gotthardt Thieme | Insulating material based on raw materials and fibrous raw materials and process for its production |
| DE4340518A1 (en) * | 1993-11-29 | 1995-06-01 | Pfleiderer Unternehmensverwalt | Moulded prods., esp. fibreboard |
| DE19509633A1 (en) * | 1995-03-17 | 1996-09-19 | Mayer Frank Prof Dr | Potato pulp adhesive and the manufacture and use of the adhesive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19811807A1 (en) * | 1998-03-18 | 1999-09-23 | Mbr Agrar Service Taunus Weste | Vegetable material insulating elements, preferably building board for construction thermal and sound insulation |
| WO2020089573A1 (en) * | 2018-11-01 | 2020-05-07 | Chip(s) Board Ltd | Method for producing a moulded article |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60002865T2 (en) | COMPOSITIONS BASED ON LIGNINE DERIVATIVES | |
| CH640708A5 (en) | DEFORMABLE TOBACCO MIXTURE. | |
| DE4311505A1 (en) | New complex product based on fibers and fillers, process for its production and its use | |
| DE3900644C2 (en) | Water-resistant, combustible agglomerate and process for its manufacture | |
| Aggarwal et al. | Effect of plant fibre extractives on properties of cement | |
| DE2715039A1 (en) | GREEN SAND FOR POURING | |
| DE19641589A1 (en) | Insulating material made from straw and potato pulp and/or waste paper | |
| DE4020969C1 (en) | Moulding with improved mechanical properties and density - comprises mixt. of wood or cellulose material shavings and potato pulp, waste paper and binder | |
| DD213915A5 (en) | METHOD FOR PRODUCING PLASTIC LIGHTWEIGHT MATERIALS FOR FURTHER PROCESSING TO FIRE-RESISTANT AND FIRE-RESISTANT MATERIALS | |
| EP0748358A1 (en) | Moulding of cellulose-containing, vegetable material and process for producing it | |
| DE3333032A1 (en) | METHOD FOR PRODUCING COMPOSITE PRODUCTS FROM LIGNOCELLULOSE MATERIALS | |
| DE19618444A1 (en) | Hardly flammable cellulose loose fibre | |
| DE19641588A1 (en) | Insulating material made from swollen straw | |
| DE3030611A1 (en) | IMPREGNATING MATERIAL, METHOD FOR THE PRODUCTION THEREOF AND METHOD FOR THE PRODUCTION OF PRODUCTS USING THE IMPREGNATING MATERIAL | |
| DE19949983B4 (en) | Tobacco film and process for producing a tobacco film | |
| DE19603491C2 (en) | Process for the production of a fibrous cellulose fabric and its use | |
| WO2007048494A2 (en) | Lignin-based glue | |
| EP0613906B1 (en) | Moulded article, especially in the form of a fibre board | |
| DE102004011231A1 (en) | Multi-component binder for making products from natural materials, e.g. insulating board from wood chips, contains polysaccharide, inorganic salt, water and adhesive, e.g. synthetic adhesive or natural protein | |
| DE1546296B2 (en) | ||
| DE19617224A1 (en) | Litter for cats and other animals | |
| DE10140480C1 (en) | Production of building material, e.g. lightweight board, plaster, adhesive or insulation, involves suspending crushed renewable cellulose raw material in water and incorporating more solid during rotary mechanical treatment | |
| DE337960C (en) | Process for the production of synthetic wood and objects from the same | |
| DE4340518C2 (en) | Moldings based on wood and / or cellulose fibers | |
| DE4306439C1 (en) | Moulding, in particular in the form of a fibreboard, and process for the production thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8131 | Rejection |