DE3905009A1 - METHOD FOR PRODUCING FIBRILLES FROM OPEN-CELLED FOAMS - Google Patents

METHOD FOR PRODUCING FIBRILLES FROM OPEN-CELLED FOAMS

Info

Publication number
DE3905009A1
DE3905009A1 DE3905009A DE3905009A DE3905009A1 DE 3905009 A1 DE3905009 A1 DE 3905009A1 DE 3905009 A DE3905009 A DE 3905009A DE 3905009 A DE3905009 A DE 3905009A DE 3905009 A1 DE3905009 A1 DE 3905009A1
Authority
DE
Germany
Prior art keywords
foams
open
fibrils
producing
fibrilles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE3905009A
Other languages
German (de)
Inventor
Fritz Ernst Krueckau
Dieter Stoehr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Priority to DE3905009A priority Critical patent/DE3905009A1/en
Priority to AT90102533T priority patent/ATE94591T1/en
Priority to EP90102533A priority patent/EP0384234B1/en
Priority to ES90102533T priority patent/ES2043133T3/en
Priority to DK90102533.8T priority patent/DK0384234T3/en
Priority to DE90102533T priority patent/DE59002683D1/en
Publication of DE3905009A1 publication Critical patent/DE3905009A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
    • D01D5/423—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Chemical Treatment Of Fibers During Manufacturing Processes (AREA)

Abstract

A process for producing fibrils from open-celled foams, for example melamine resin foams, polyurethane foams or phenol resin foams, in which these foams are precomminuted and subsequently subjected to intense shear in water or other liquids by means of commercially available equipment.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Fibrillen aus offenzelligen Schäumen, wie beispielsweise Melaminharz-Schaumstoffen, Polyurethan-Schaumstoffen oder Phenolharz-Schaumstoffen.The invention relates to a method for producing fibrils from open-cell foams, such as melamine resin foams, Polyurethane foams or phenolic resin foams.

Aufgrund der Stoffeigenschaften solcher Schäume, beispielsweise des Melaminharz-Schaumstoffes, - ®Basotect - und der geometrischen Form von Fibrillen eignen sich Fibrillen aus Melaminharz-Schaumstoff für die Herstellung von Vliesen, Filzen, Kupplungsbelägen, Bremsbelägen, Dichtungen aller Art, etc.Due to the material properties of such foams, such as the melamine resin foam, - ®Basotect - and the geometric form of fibrils the fibrils are made of melamine resin foam for the production of nonwovens, felts, clutch facings, brake linings, gaskets of any type, etc.

In der Vergangenheit wurde versucht, diese Fibrillen nach bekannten Ver­ fahren herzustellen, nämlich durch Fällen von Lösungen oder thermo­ plastischen Schmelzen in ein Flüssigkeitsbad oder in ein Gas. Des weiteren wurde versucht, die im Melaminharz-Schaumstoff vorhandenen Zellstege mechanisch mittels handelsüblicher Trockenmühlen aufzutrennen und diese als verästelte, fibrillenartige Fasern zu separieren.In the past, attempts have been made to make these fibrils according to known ver drive manufacture, namely by precipitation of solutions or thermo plastic melting into a liquid bath or gas. Furthermore an attempt was made to examine the cell webs present in the melamine resin foam mechanically using commercially available dry mills and this to separate as branched, fibril-like fibers.

Mit keinem der aufgezeigten Verfahrensschritte konnten Fibrillen hergestellt werden, die sich zur Herstellung der oben aufgeführten Artikel eigneten.Fibrils could not be performed with any of the process steps shown are manufactured that are used to manufacture the items listed above suitable.

Es stellte sich daher die Aufgabe, ein Verfahren zur Herstellung von Fibrillen aus offenzelligen Schäumen zu entwickeln, wobei sich diese Fibrillen zur Herstellung von Vliesen, Filzen, Kupplungsbelägen, Bremsbelägen, Dichtungen aller Art, etc. eignen sollten.It was therefore the task of a process for the production of Develop fibrils from open-celled foams, taking these Fibrils for the production of fleeces, felts, clutch linings, Brake pads, seals of all kinds, etc. should be suitable.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß diese Schäume vorzerkleinert und anschließend mittels handelsüblicher Geräte in Wasser oder anderen Flüssigkeiten einer intensiven Scherbeanspruchung ausgesetzt werden.This object is achieved in that these foams pre-shredded and then in water using standard equipment or other liquids exposed to intense shear stress will.

Als Flüssigkeiten werden insbesondere organische Lösungsmittel eingesetzt.Organic solvents are used in particular as liquids.

Hierzu werden beispielsweise sogenannte Aufschlußgeräte, wie Ultra-Turrax, Inline-Turrax oder Gorator verwendet.For this purpose, for example, so-called digestion devices, such as Ultra-Turrax, Inline Turrax or Gorator used.

Über diesen Verfahrensweg konnten verästelte, voneinander unabhängige Fibrillen hergestellt werden, die die Eigenschaft haben, sowohl im trockenen als auch im nassen Zustand Vliese zu bilden. Using this procedure, branched, independent of each other Fibrils are produced that have the property of being both in the to form dry as well as wet fleeces.  

Eine Optimierung der Fibrillen, zugeschnitten auf die einzelnen Anwen­ dungsgebiete kann durch Änderung der Parameter wie Schergeometrie, Scherintensität, Stoffdichte, Aufschlußzeit bzw. durch Zugabe von Tensiden oder anderen Zusatzstoffen vorgenommen werden.An optimization of the fibrils, tailored to the individual users areas can be changed by changing parameters such as shear geometry, Shear intensity, consistency, digestion time or by adding surfactants or other additives.

Claims (2)

1. Verfahren zur Herstellung von Fibrillen aus offenzelligen Schäumen, wie beispielsweise Melaminharz-Schaumstoffen, Polyurethan-Schaumstoffen oder Phenolharz-Schaumstoffen, dadurch gekennzeichnet, daß diese Schäume vorzerkleinert und anschließend mittels handelsüblicher Geräte in Wasser oder anderen Flüssigkeiten einer intensiven Scherbeanspruchung ausgesetzt werden.1. A process for the production of fibrils from open-cell foams, such as melamine resin foams, polyurethane foams or phenolic resin foams, characterized in that these foams are pre-comminuted and then exposed to intensive shear stress by means of commercially available devices in water or other liquids. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Flüssigkeiten organische Lösungsmittel eingesetzt werden.2. The method according to claim 1, characterized in that as Liquids organic solvents are used.
DE3905009A 1989-02-18 1989-02-18 METHOD FOR PRODUCING FIBRILLES FROM OPEN-CELLED FOAMS Withdrawn DE3905009A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE3905009A DE3905009A1 (en) 1989-02-18 1989-02-18 METHOD FOR PRODUCING FIBRILLES FROM OPEN-CELLED FOAMS
AT90102533T ATE94591T1 (en) 1989-02-18 1990-02-09 PROCESS FOR THE PRODUCTION OF FIBRIALS FROM OPEN-CELL FOAMS.
EP90102533A EP0384234B1 (en) 1989-02-18 1990-02-09 Process for producing fibrils from open pore foams
ES90102533T ES2043133T3 (en) 1989-02-18 1990-02-09 PROCEDURE FOR THE OBTAINING AND OPEN CELL SPONGEOUS PLASTIC FIBRILLES.
DK90102533.8T DK0384234T3 (en) 1989-02-18 1990-02-09 Process for producing fibrils from open cell foam
DE90102533T DE59002683D1 (en) 1989-02-18 1990-02-09 Process for the production of fibrils from open cell foams.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3905009A DE3905009A1 (en) 1989-02-18 1989-02-18 METHOD FOR PRODUCING FIBRILLES FROM OPEN-CELLED FOAMS

Publications (1)

Publication Number Publication Date
DE3905009A1 true DE3905009A1 (en) 1990-08-23

Family

ID=6374416

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3905009A Withdrawn DE3905009A1 (en) 1989-02-18 1989-02-18 METHOD FOR PRODUCING FIBRILLES FROM OPEN-CELLED FOAMS
DE90102533T Expired - Lifetime DE59002683D1 (en) 1989-02-18 1990-02-09 Process for the production of fibrils from open cell foams.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE90102533T Expired - Lifetime DE59002683D1 (en) 1989-02-18 1990-02-09 Process for the production of fibrils from open cell foams.

Country Status (5)

Country Link
EP (1) EP0384234B1 (en)
AT (1) ATE94591T1 (en)
DE (2) DE3905009A1 (en)
DK (1) DK0384234T3 (en)
ES (1) ES2043133T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5863002A (en) * 1995-10-24 1999-01-26 Sony Corporation Waste processing apparatus, waste recovery system and liquid container

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL150174B (en) * 1966-01-03 1976-07-15 Stamicarbon METHOD FOR THE MANUFACTURE OF A FIBER FIBER.
DE2720701C2 (en) * 1977-05-07 1985-05-02 Hughes Aircraft Co., Culver City, Calif. Process for the production of synthetic fibers from a non-crystalline polymer
DE3128871A1 (en) * 1981-07-22 1983-02-10 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING BINDING FIBERS FROM POLYMERISATE DISPERSIONS
DE3128873A1 (en) * 1981-07-22 1983-02-10 Basf Ag, 6700 Ludwigshafen DEVICE FOR PRODUCING BINDING FIBERS FROM POLYMERSATE DISPERSIONS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5863002A (en) * 1995-10-24 1999-01-26 Sony Corporation Waste processing apparatus, waste recovery system and liquid container

Also Published As

Publication number Publication date
EP0384234A1 (en) 1990-08-29
ATE94591T1 (en) 1993-10-15
DE59002683D1 (en) 1993-10-21
EP0384234B1 (en) 1993-09-15
DK0384234T3 (en) 1993-10-25
ES2043133T3 (en) 1993-12-16

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