DE2244901A1 - Three dimensionally reinforced foam - has high tensile strength - Google Patents
Three dimensionally reinforced foam - has high tensile strengthInfo
- Publication number
- DE2244901A1 DE2244901A1 DE19722244901 DE2244901A DE2244901A1 DE 2244901 A1 DE2244901 A1 DE 2244901A1 DE 19722244901 DE19722244901 DE 19722244901 DE 2244901 A DE2244901 A DE 2244901A DE 2244901 A1 DE2244901 A1 DE 2244901A1
- Authority
- DE
- Germany
- Prior art keywords
- foam
- polymer
- fibers
- fiber wadding
- fiber
- 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.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0085—Use of fibrous compounding ingredients
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Dreidimensional verstärktes Schaumpolymer Die vorliegende Erfindung betrifft ein verstärktes Schaumpolymer, genauer gesagt ein Schaumpolymer mit dreidimensionaler Verstärkung, d.h. die Verstärkung erstreckt sich durch das gesamte Schaumpolymer hindurch. Die Erfindung schafft aus herkömmlichen Werkstoffen ein Enderzeugnis, das sich durch ausserordentlich hohe Stabilität und Festigkeit auszeichnet und u.a. als Unterlagsfilz geeignet ist. Three Dimensionally Reinforced Foam Polymer The present invention relates to a reinforced foam polymer, more specifically a foam polymer with three-dimensional Reinforcement, i.e. the reinforcement extends through the entire foam polymer through. The invention creates an end product from conventional materials, which is characterized by extremely high stability and strength and, among other things, is suitable as an underlay felt.
Die Herstellung von Schaumgummibahnen und auch das Verstärken derartiger Bahnen durch Beschichten mit Textilmaterialien in gewebter oder nicht-gewebter Form ist bereits bekannt. Ferner hat man versucht, zum Zwecke der Verstärkung kurze Fasern in Schaumgummi einzurUhren. The manufacture of foam rubber sheets and also the reinforcement of such Sheets by coating with textile materials in woven or non-woven form is already known. Attempts have also been made to use short fibers for reinforcement purposes to pierce into foam rubber.
Diese Werkstoffe besitzen jedoch eine verhältnismässig schlechte Formbeständigkeit, und eine Verbesserung in dieser Hinsicht ist deshalb lange erwünscht gewesen. Man hat nun durch die vorliegende Erfindung diesen Nachteil beseitigen und einen neuen Werkstoff zustandebringen können, der sich durch unerwartet hohe Formbeständigkeit auszeichnet.However, these materials have a relatively poor dimensional stability, and improvement in this regard has therefore long been desired. Man has now eliminated this disadvantage with the present invention and a new one Can bring about material that is characterized by unexpectedly high dimensional stability excels.
Das verstärkte Schaumpolymer der vorliegenden Erfindung ist eine Faserwatte, die in einen aus aufgeschäumten Latex bestehenden Polymerschaum eingebracht worden ist, und die Erfindung zeichnet sich dadurch aus, dass die Faserwatte eine durch einen Nadelprozess oder durch Einwirkung von Lösungsmitteldampf lose gebundene Faserwatte aus Fasern mit einer Länge von mindestens 35 mm ist, und dass die Faserwatte 5-30% des Gewichts des fertigen Erzeugnisses ausmacht. The reinforced foam polymer of the present invention is one Fiber wadding that is inserted into a polymer foam made of foamed latex has been, and the invention is characterized in that the fiber wadding is a loosely bound by a needle process or by the action of solvent vapor Fiber wadding is made of fibers with a length of at least 35 mm, and that the fiber wadding 5-30% of the weight of the finished product.
Bei einer Faserlänge von weniger als 35 mm lässt sich das Material schwer bearbeiten, und ferner ist es schwierig, die vorzüglichen Eigenschaften gemäss der vorliegenden Erfindung zu erzielen. If the fiber length is less than 35 mm, the material difficult to work, and it is also difficult to obtain the excellent properties according to of the present invention.
Die Faserwatte besteht aus langen Textilfasern und ist in bekannter Weise durch Krempeln oder Luftbeschichten gebildet und is-t zwecks Erhaltens einer hantierbaren, verfestigten Watte durch leichtes Nadeln (15-20 Stiche/cm2) oder Binden der Fasern mittels Lösungsmittelsdampfes behandelt, wodurch die Dichte der Faserwatte nicht erhöht wird. Das Binden der Fasern durch behandlung mit Lösung mitteldampf kann gemäss dem schwedischen Patent 324 752 vorgenommen werden. Die Dicke der Faserwatte, die innerhalb weiter Grenzen schwanken kann, ist für die Dicke des Enderzeugnisses ausschlaggebend. The fiber wadding consists of long textile fibers and is well known Formed by carding or air-coating and is-t for the purpose of obtaining one way manageable, solidified cotton wool by light needling (15-20 stitches / cm2) or binding The fibers are treated with solvent vapor, which increases the density of the fiber wadding not is increased. The binding of the fibers by treatment with solution Medium steam can be made according to the Swedish patent 324 752. the The thickness of the fiber wadding, which can vary within wide limits, is used for the thickness of the end product is decisive.
Das verwendete Fasermaterial kann sowohl aus synthetischen und halbsynthetischen wie auch aus natürlichen Fasern bestehen, wobei als Beispiele Fasern aus Polyester, Polyamid, Polyacrylnitril, Polyolefin, Glas, Polyvinyl, 'regenerierter Cellulose, Schafwolle und Baumwolle erwähnt seien. Auch Gemische dieser Fasern können benutzt werden. The fiber material used can be both synthetic and semi-synthetic as well as of natural fibers, whereby as examples fibers made of polyester, Polyamide, polyacrylonitrile, polyolefin, glass, polyvinyl, 'regenerated cellulose, Sheep wool and cotton should be mentioned. Mixtures of these fibers can also be used will.
Der benutzte Polymerschaum ist ein aufgeschäumter Latex, d.h. The polymer foam used is a foamed latex, i.
in Wasser dispergiertes, emulgiertes oder gelöstes Polymer. Als Beispiele zweckdienlicher Polymere seien die folgenden erwähnt: Naturkautschuk, Butadien-Styrol-Mischpolymer, Butadien-Acrylnitril->Iischpolymer, Polyvinylacetat, Polyvinylalkohol, Polyvinylchlorid, Acrylharz, Polyurethan, Protein- oder Aminokunststoff, Polystyrolkunststoff usw. Zusätze wie FUllmittel, Farbstoffe, feuerhemmende Mittel, Geschmackstoffe usw. können je nach Wunsch und Möglichkeit zugesetzt werden Die Erfindung ist nun anhand der Zeichnung im folgenden näher beschrieben.polymer dispersed, emulsified or dissolved in water. As examples The following are suitable polymers: natural rubber, butadiene-styrene mixed polymer, Butadiene-acrylonitrile copolymer, polyvinyl acetate, polyvinyl alcohol, polyvinyl chloride, Acrylic resin, polyurethane, protein or amino plastic, polystyrene plastic, etc. Additives such as fillers, dyes, fire retardants, flavorings, etc. can be used are added as desired and possible. The invention is now based on the Drawing described in more detail below.
Auf der Zeichnung stellen dar Fig. 1 ein bevorzugtes Verfahren zur Herstellung des faserverstärkten Schaumpolymers gemäss der Erfindung, und Fig. 2 einen Querschnitt des fertigen, verstärkten Schaumpolymers. In the drawing, FIG. 1 shows a preferred method for Production of the fiber-reinforced foam polymer according to the invention, and FIG. 2 a cross section of the finished, reinforced foam polymer.
Fig. 1 zeigt wie die verbundene Faserwatte 1 auf einem Förderband 2 herangeführt und zwischen zwei einander gegenüberliegenden Walzen 3 und 4 eingebracht wird. Gleichzeitig mit dem Einbringen der Faserwatte zwischen den Walzen wird ein Polymerschaum 5 auf die Ober-und Unterseite der Watte aufgetragen. Die Menge des aufgetragenen Polymerschaumes wird mittels Rakeln 6 und 7 geregelt. Beim Einbringen der Faserwatte und des Polymerschaumes zwischen den Walzen 3 und 4 wird der Polymerschaum in die Faserwatte hineingedrückt, so dass diese in ihrer Gesamtheit mit Polymerschaum ausgefUllt wird. Die so gebildete, aus Polymerschaum und Fasern bestehende tahn wird dann getrocknet, indem sie an Wärmestrahlern 8 vorbeigeführt und durch einen Trockenofen 9 hindurchgeführt wird. Die verstärkte Schaumpolymerbahn ist dann fertig und hat das in Fig. 2 veranschaulichte Aussehen. In dieser Figur bezeichnet 10 das Schaumpolymer und 11 die Verstärkungsfasern. Wie aus der Figur ersichtlich, erstrecken sich die Fasern kreuz und quer durch die gesamte Bahn hindurch, also sowohl in deren Längsrichtung wie auch in deren Querrichtung. Die Verstärkung ist also dreidimensional, so dass das Erzeugnis ausserordentlich stabil und beständig ist. Fig. 1 shows how the connected fiber wadding 1 on a conveyor belt 2 and introduced between two opposing rollers 3 and 4 will. Simultaneously with the introduction of the fiber wadding between the rollers, a Polymer foam 5 applied to the top and bottom of the wadding. The amount of applied polymer foam is regulated by means of doctor blades 6 and 7. When bringing in the fiber wadding and the polymer foam between the rollers 3 and 4 becomes the polymer foam pressed into the fiber wadding so that it is covered in its entirety with polymer foam is filled out. The so educated made of polymer foam and fibers Existing skin is then dried by moving it past heat radiators 8 and is passed through a drying oven 9. The reinforced foam polymer sheet is then finished and has the appearance illustrated in FIG. In this figure 10 denotes the foam polymer and 11 the reinforcing fibers. As from the figure it can be seen that the fibers criss-cross through the entire web, that is, both in their longitudinal direction and in their transverse direction. The reinforcement is therefore three-dimensional, so that the product is extremely stable and durable is.
Die Erfindung ist nun anhand einiger Ausführungsbeispiele noch weiter erläutert. The invention is now even further based on a few exemplary embodiments explained.
Beispiel 1 Polyesterfasern mit einer Denierzahl von 6,0 und einer ungefähren Länge von 70 mm wurden mit Hilfe einer Krempel und eines Wattelegers zu einer Watte geformt. Die Watte hatte ein Gewicht von 200 g/m2 und eine Dicke von 7,5 inm nach Vernadeln mit 25 Stichen/cm2.Example 1 Polyester fibers of 6.0 denier and one approximate length of 70 mm were measured with the help of a carder and a cotton swab formed into a cotton wool. The wadding had a weight of 200 g / m 2 and a thickness of 7.5 inches after needling with 25 stitches / cm2.
Diese Faserwatte wurde in einen Schaum mit einem Nassgewicht von 1080 g/m2 und der folgenden Zusammensetzung eingebracht. This fiber wadding was converted into a foam with a wet weight of 1080 g / m2 and the following composition incorporated.
Gewichtstei le Trockengewicht Nassgewicht Butadien-Styrol-Latex (non-gelling) 61% Trockensubstanzgehalt 104 170 Kreide 200 200 Kaliumoleatlösung (12,52 Trockensubstanzgehalt) 1 8 Vulkanisierpaste (enthält Schwefel, Zinkoxyd, Beschleuniqer und Antioxydationsmittel dispergiert zu 53% Trockensubstanzgehalt) 9 17 Farbdispersion (25% Trockensubstanzgehalt) 0,25 1 Wasser - 86 314,25 482 Trockensubstanzgehalt insgesamt: 65%. Parts by weight dry weight wet weight butadiene-styrene-latex (non-gelling) 61% dry matter content 104 170 chalk 200 200 potassium oleate solution (12.52 dry matter content) 1 8 Vulcanizing paste (contains sulfur, zinc oxide, accelerators and antioxidants dispersed to 53% dry matter content) 9 17 Color dispersion (25% dry matter content) 0.25 1 water - 86 314.25 482 total dry matter content: 65%.
Dieses Latexgemisch war zum Sechsfachen seines Volumens aufgeschäumt worden. Der Schaum war stabil und zähflüssig, jedoch noch genügend flüssig, um in die poröse Watte eindringen zu können. This latex mixture was foamed to six times its volume been. The foam was stable and viscous, but still sufficiently fluid to move in to be able to penetrate the porous wadding.
Die gebildete Bahn wurde bei 1500C getrocknet, und ein formbeständiges Erzeugnis in Form eines faserverstärkten Schaumes mit einer Dicke von 7,3 mm und einem Gewicht von 900 g/m2 wurde erhalten. The web formed was dried at 1500C and a dimensionally stable one Product in the form of a fiber-reinforced foam with a thickness of 7.3 mm and a weight of 900 g / m2 was obtained.
Die Dichte betrug 0,125 g/cm3.The density was 0.125 g / cm3.
Eine Prüfung der physikalischen Eigenschaften des Ausgangsmaterials bzw. des fertigen Erzeugnisses ergab die in Tafel 1 genannten Werte. An examination of the physical properties of the starting material or the finished product resulted in the values given in Table 1.
Tafel 1 Dichte Zugbruchgrenze Zugspannung Bruchdehnung (g/cm3) (kp/cm2) bei 15% (%) Dehnung (kp/cm2) Faserwatte 0,027 0,1 0 90 Schaum 0,098 0,38 0 180 verstärkter Schaum 0,125 8,8 1,5 70 Obgleich Tafel 1 fUr die einzelnen Ausgangsstoffe eine geringe Zugbruchgrenze anzeigt, so zeigt sie für das fertige Erzeugnis eine weit höhere Zugbruchgrenze als die Eigenschaften der Ausgangsstoffe erwarten ließen. Somit ist im vorliegenden Falle die Zugbruchgrenze um etwa 2300% gesteigert worden. Table 1 Density Tensile Rupture Limit Tensile Stress Elongation at Break (g / cm3) (kp / cm2) at 15% (%) elongation (kp / cm2) fiber wadding 0.027 0.1 0 90 foam 0.098 0.38 0 180 reinforced Foam 0.125 8.8 1.5 70 Although Table 1 shows a low level for the individual starting materials Shows tensile breakage limit, it shows a much higher one for the finished product Tensile break limit than the properties of the starting materials would be expected. So is in the present case the tensile breakage limit has been increased by about 2300%.
Beispiel 2 Rayonfasern mit einer Denierzahl von 15,0 und einer ungefähren Länge von 70 mm wurden in derselben Weise wie in Beispiel 2 zu einer Watte mit einem Gewicht von 200 g/m2 geformt. Die Watte wurde in einen ebensolchen Schaum wie in Beispiel 1 zur Bildung eines verstärkten Schaumpolymers mit einem trockenen Endgewicht von 750 g/m2 und einer Dicke von 5,0 mm eingebracht. Die Dichte betrug 0,150 g/cm3.Example 2 15.0 denier and approximate rayon fibers Length of 70 mm became a cotton wool with a in the same manner as in Example 2 Molded weight of 200 g / m2. The cotton wool was wrapped in a foam similar to that in Example 1 of Forming Reinforced Foam Polymer with Final Dry Weight of 750 g / m2 and a thickness of 5.0 mm. The density was 0.150 g / cm3.
Die Prüfung der physikalischen Eigenschaften des Ausgangsmaterials bzw. des fertigen Erzeugnisses ergab die in Tafel 2 genannten Werte. Testing the physical properties of the starting material or the finished product resulted in the values given in Table 2.
Tafel 2 Dichte Zugbruchgrenze Zugspannung Bruchdehnung (g/cm3) (kp/cm2) bei 15% Dehnung (kp/cm2) Faserwatte 0,040 0,15 0 90 Schaum 0,110 0,38 0 180 verstärkter Schaum 0,150 6,8 514 40 Auch in diesem Falle wies das Fertigerzeugnis eine weit höhere Zugbruchgrenze auf, als die'Eigenschaften der Ausgangsstoffe erwarten liessen. Table 2 Density Tensile Rupture Limit Tensile Stress Elongation at Break (g / cm3) (kp / cm2) at 15% elongation (kp / cm2) fiber wadding 0.040 0.15 0 90 foam 0.110 0.38 0 180 reinforced Foam 0.150 6.8 514 40 In this case too, the finished product had a wide range higher tensile break strength than the properties of the starting materials would lead one to expect.
Die Erfindung ist nicht auf die obigen Ausführungsbeispiele beschränkt, sondern lässt im Rahmen der nachstehenden Patentansprüche vielerlei Abänderungen zu. The invention is not limited to the above embodiments, but leaves many changes within the scope of the following patent claims to.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1163371 | 1971-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2244901A1 true DE2244901A1 (en) | 1973-03-22 |
Family
ID=20294327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19722244901 Pending DE2244901A1 (en) | 1971-09-14 | 1972-09-13 | Three dimensionally reinforced foam - has high tensile strength |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2244901A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2391068A1 (en) * | 1977-05-18 | 1978-12-15 | Hughes Aircraft Co | Strong pliable flexible composites - comprising three dimensionally arrayed fibres in extensible resin matrix |
US4296054A (en) * | 1975-11-18 | 1981-10-20 | Sadaaki Takagi | Method for production of polyurethane cushion material |
US4476076A (en) * | 1980-01-14 | 1984-10-09 | Whitney & Company, Inc. | Method of open forming an expanded polyester resin article involving a controlled induction period |
FR2657293A1 (en) * | 1990-01-24 | 1991-07-26 | Valeo | Method of producing a material based on a reinforced elastomer, as well as a reinforced elastomer material especially obtained by this method |
FR2670510A1 (en) * | 1990-12-12 | 1992-06-19 | Valeo | Method of producing a material based on reinforced elastomer, as well as a reinforced elastomer material obtained in particular by this method |
EP0985519A2 (en) * | 1998-09-07 | 2000-03-15 | Isosport Verbundbauteile Gesellschaft Mbh | Method for the fabrication of thermoplastic sheets reinforced with natural fibres as well as their use for the production of parts |
WO2011159424A1 (en) * | 2010-06-15 | 2011-12-22 | Dow Global Technologies Llc | Method for making polyurethane foam floor covering products with postconsumer carpet fibers |
-
1972
- 1972-09-13 DE DE19722244901 patent/DE2244901A1/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4296054A (en) * | 1975-11-18 | 1981-10-20 | Sadaaki Takagi | Method for production of polyurethane cushion material |
FR2391068A1 (en) * | 1977-05-18 | 1978-12-15 | Hughes Aircraft Co | Strong pliable flexible composites - comprising three dimensionally arrayed fibres in extensible resin matrix |
US4476076A (en) * | 1980-01-14 | 1984-10-09 | Whitney & Company, Inc. | Method of open forming an expanded polyester resin article involving a controlled induction period |
FR2657293A1 (en) * | 1990-01-24 | 1991-07-26 | Valeo | Method of producing a material based on a reinforced elastomer, as well as a reinforced elastomer material especially obtained by this method |
FR2670510A1 (en) * | 1990-12-12 | 1992-06-19 | Valeo | Method of producing a material based on reinforced elastomer, as well as a reinforced elastomer material obtained in particular by this method |
EP0985519A2 (en) * | 1998-09-07 | 2000-03-15 | Isosport Verbundbauteile Gesellschaft Mbh | Method for the fabrication of thermoplastic sheets reinforced with natural fibres as well as their use for the production of parts |
EP0985519A3 (en) * | 1998-09-07 | 2002-06-19 | Isosport Verbundbauteile Gesellschaft Mbh | Method for the fabrication of thermoplastic sheets reinforced with natural fibres as well as their use for the production of parts |
WO2011159424A1 (en) * | 2010-06-15 | 2011-12-22 | Dow Global Technologies Llc | Method for making polyurethane foam floor covering products with postconsumer carpet fibers |
AU2011265696B2 (en) * | 2010-06-15 | 2014-09-18 | Dow Global Technologies Llc | Method for making polyurethane foam floor covering products with postconsumer carpet fibers |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0076888B1 (en) | Absorbent flat product, and process for its manufacture | |
DE2721511C2 (en) | Adsorbent nonwoven fabric and process for its manufacture | |
DE69022292T2 (en) | Flammable, mass-produced webs based on cellulose and method for producing such webs. | |
AT394400B (en) | NON-WOVEN FIBER PRODUCT | |
DE2244901A1 (en) | Three dimensionally reinforced foam - has high tensile strength | |
DE1004136B (en) | Process for the production of a íÀatmendení synthetic fiber leather | |
DE2142761C3 (en) | Process for making molded articles from nylon-4 | |
DE2325677A1 (en) | ETHYLENE / VINYL CHLORIDE / N-METHYLOLACRYLAMIDE / N- (ALCOXYMETHYL) ACRYLAMIDE | |
DE575478C (en) | Artificial leather made from one or more nonwovens and rubber | |
DE1294342C2 (en) | PROCESS FOR THE MANUFACTURING OF LIGHT, THERMOPLASTIC IMPREGNATED OR COATED FLAT HYGIENE ARTICLES | |
DE2013912A1 (en) | Compound fabric capable of compression to - double density | |
DE1162431B (en) | Process for the manufacture of separators for electrical collectors and electrolytic cells | |
DE1962282A1 (en) | Non-woven disposable towel and process for its manufacture | |
DE1469513A1 (en) | Method for producing a substitute material for textile material | |
DE2036879C3 (en) | Mixed fiber fleeces, in particular for diaper covers and other hygienic purposes | |
DE1909488C3 (en) | Process for the direct production of a highly porous paper with high wet strength | |
AT240688B (en) | Process for the production of paper-like nonwovens | |
DE1947142A1 (en) | Bonded non-woven fabric | |
AT271304B (en) | Process for the production of an insulating material based on cork and fibers | |
DE1470987A1 (en) | Material similar to leather and process for its manufacture | |
AT244141B (en) | Wet-strength, non-woven fiber fleece made from thermoplastic synthetic fibers | |
DE2024945C3 (en) | Process for the production of an artificial leather | |
DE1217775C2 (en) | Process for the production of paper-like non-woven fabrics | |
DE1494639C (en) | Process for the production of viscose flat fibers | |
AT229045B (en) | Iron-on non-woven fabric and process for its manufacture |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OHW | Rejection |