EP0080655B1 - Procédé de fabrication de nappes de fibres à base de matière plastique - Google Patents

Procédé de fabrication de nappes de fibres à base de matière plastique Download PDF

Info

Publication number
EP0080655B1
EP0080655B1 EP82110624A EP82110624A EP0080655B1 EP 0080655 B1 EP0080655 B1 EP 0080655B1 EP 82110624 A EP82110624 A EP 82110624A EP 82110624 A EP82110624 A EP 82110624A EP 0080655 B1 EP0080655 B1 EP 0080655B1
Authority
EP
European Patent Office
Prior art keywords
thickness
din
mats
melamine
mat
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
Application number
EP82110624A
Other languages
German (de)
English (en)
Other versions
EP0080655A1 (fr
Inventor
Hans Dieter Zettler
Heinz Berbner
Peter Ketterer
Harald Dr. Mahnke
Frank Peter Dr. Woerner
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 AT82110624T priority Critical patent/ATE17880T1/de
Publication of EP0080655A1 publication Critical patent/EP0080655A1/fr
Application granted granted Critical
Publication of EP0080655B1 publication Critical patent/EP0080655B1/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E04C2/22—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics reinforced

Definitions

  • Mats made of glass or mineral fibers are used for heat and sound insulation of buildings and parts of buildings.
  • these mats have disadvantages, the cause of which is due to the inorganic nature of the fibers.
  • the object of the invention was to develop an insulating material based on organic fibers which largely corresponds to the inorganic materials in terms of its insulating properties and which is simple to manufacture and easy to handle.
  • DE-AS 2 364 091 describes flame-retardant, infusible fibers made from hardened melamine-aldehyde resins.
  • the textile sector is the only field of application. It was not immediately obvious to use such fibers for the production of heat and sound insulation materials, since the fibers described were only tested and processed according to textile technology considerations. The knowledge gained in this way does not allow any conclusions to be drawn about the properties of heat and sound insulation. In particular, the good resilience of the fiber mats according to the invention was not to be expected.
  • DE-U-6930307 describes insulating mats made from waste synthetic fibers, in particular from polyester and polyamide. Such fiber mats meet the requirements of building material class B 1; however, they melt at the high temperatures that occur in the fire, which in unfavorable cases can lead to burning drops. In contrast, carbon fiber mats made of melamine resins form a protective layer against the further advance of the fire.
  • Melamine resins are to be understood as meaning melamine / formaldehyde condensation products which, in addition to melamine, can contain up to 50, preferably up to 20% by weight of other thermoset formers and, in addition to formaldehyde, up to 50, preferably up to 20% by weight of other aldehydes.
  • An unmodified melamine / formaldehyde condensation product is particularly preferred.
  • suitable thermoset formers are: alkyl-substituted melamine, urea, urethanes, carboxamides, dicyandiamide, guanidine, sulphurylamide, sulphonic acid amide, aliphatic amines, phenol and its derivatives.
  • aldehydes e.g.
  • Acetaldehyde, trimethylol acetaldehyde, acrolein, benzaldehyde, furfural, glyoxal, phthalaldehyde and terephthalaldehyde can be used. Further details on melamine / formaldehyde condensation products can be found in Houben-Weyl, Methods of Organic Chemistry, Volume 14/2, 1963, pages 319 to 402.
  • the molar ratio of Duorplasttruckner: aldehyde can be within wide limits between 1: 1.5 and 1: Fluctuate 4.5; in the case of melamine / formaldehyde condensates, it is preferably between 1: 2.5 and 1: 3.5.
  • the fibers can be produced - as described in DE-AS 2 364 091 - by spinning a highly concentrated aqueous solution of a melamine-aldehyde precondensate. You can spin from a spinner or from a nozzle. The fibers are pre-dried, optionally stretched, and finally the melamine resin is cured at temperatures of 150 to 250 ° C. Typical acids, such as e.g. Serve sulfuric acid, hydrochloric acid, acetic acid or preferably formic acid, which are added in amounts of 0.1 to 5 wt.% Of the aqueous solution of the precondensate.
  • the fibers can optionally be provided with binders which connect the individual fibers at the nodes of the fiber mat.
  • meltblown resins in amounts of 1 to 8, preferably 2 to 5% by weight, based on the fibers, are suitable as binders.
  • the binder can - e.g. as an aqueous dispersion - sprayed onto the fibers directly after their production.
  • the fibers are laid down into mats of the desired thickness, which can then be cut to size and optionally laminated.
  • the geometry of the fibers can be varied within wide limits under conditions such as the nozzle cross-section and the speed of the spin plate.
  • the fibers are usually 3 to 30 ⁇ m thick and 10 to 150 mm long. Their tensile strength is in the range of about 100 to 1000 N.mm- 2 , their elongation at break between 3 and 30%.
  • the melamine resin fibers show not only an elastic but also a plastic area. When subjected to heavy loads, they do not break immediately, but are first plastically deformed so that there are no sharp-edged breaks.
  • the insulating material produced according to the invention is characterized by low thermal conductivity, high sound absorption, good resilience and favorable fire behavior.
  • the properties are determined according to the methods specified in the DIN standards mentioned. When measuring the resilience, a 100 mm thick mat is assumed. Thicker mats are cut accordingly, with thinner mats several mats are put together.
  • the good resilience is important for the transport, storage and laying of the mats. After production and assembly, the mat webs are usually rolled up and strongly pressed together in order to reduce the volume during transport and storage. When laying, they are rolled out again, whereby they should return to their original thickness and thus the original density as quickly as possible. If the resilience is inadequate, the density increases, which reduces the insulating effect.
  • the fiber mats according to the invention can be used for heat and sound insulation of buildings and parts of buildings, in particular for insulating roofs.
  • a homogeneous aqueous solution of 80 parts by weight of a melamine / formaldehyde precondensate (molar ratio 1: 3, molecular weight about 500) in 20 parts by weight of water is degassed. 1 part by weight of 85% formic acid is then added to this solution and homogeneously distributed therein by stirring.
  • the viscosity of the solution is 300 Pas.
  • the solution is placed on a rotating spinner. This has a diameter of 18 cm. It is equipped with 6 nozzles that are evenly distributed around the circumference and have a diameter of 500 ⁇ m. The speed is 8500 rpm.
  • the centrifugal disc is surrounded by a cylindrical chute with an inner diameter of 2 m and a height of 5 m.
  • the pressed and flung fibers (average length 60 mm, average diameter 13 ⁇ m) are caught in the chute and fall down there. They are pre-dried by rising hot air at 50 ° C. Approximately in the middle of the chute there are 6 nozzle openings through which binder dispersion can be injected.
  • the fibers are placed on an endless belt at the lower end of the chute.
  • the thickness and density of the mat can be influenced by the amount of melamine resin solution applied per unit of time, as well as by the speed of the endless belt and by the speed of the hot air flow.
  • a mat was a thickness of 50 mm and a density of 20 g.1 -1. It was cut to a width of 50 cm. It was then tempered in a drying oven at 220 ° C. for 20 minutes, the melamine resin curing completely and the remaining water evaporating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Building Environments (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Glass Compositions (AREA)
  • Multicomponent Fibers (AREA)

Claims (2)

1.- Procédé de préparation de mats de fibres à base de matière plastique, caractérisé par le fait qu'on étend en mats des fibres de résines mélamine durcies, qui sont éventuellement munies de liants à base de résines mélamine, phénol ou urée, et qui possèdent les caractéristiques suivantes:
a) l'épaisseur est comprise entre 20 et 200 mm, de préférence entre 50 et 100 mm,
b) la densité est comprise entre 10 et 150 g.I-1, de préférence entre 15 et 50 g.l-1,
c) la conductibilité thermique selon DIN 52 612 est inférieure à 0,05 W.m-1. °K-1, de préférence est comprise entre 0,03 et 0,04 W.m-1.°K-1,
d) l'absorption phonique selon DIN 52 215-63, pour 2500 Hz, convertie d'incidence sonore verticale à fixe, est supérieure à 90 %, de préférence supérieure à 95 %,
e) la faculté de reprise, mesurée sur un mat de 100 mm d'épaisseur qui a été écrasé à 30 mm en 2 minutes et comprimé à cette épaisseur durant 24 heures, est si forte que le mat, par décharge de la pression, revient spontanement à une épaisseur de plus de 80 mm, de préférence de plus de 90 mm, et a repris au bout de 6 heures une épaisseur de plus de 98 mm, de préférence de plus de 99 mm,
f) le comportement au feu est si favorable que, lors de l'essai au feu selon DIN 4102, partie I, on atteint la classe de matériau B1 (difficilement inflammable).
2.- Utilisation des mats de fibres préparés selon la revendication 1 pour la protection thermique et sonore de bâtiments et parties de bâtiments.
EP82110624A 1981-11-28 1982-11-18 Procédé de fabrication de nappes de fibres à base de matière plastique Expired EP0080655B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82110624T ATE17880T1 (de) 1981-11-28 1982-11-18 Verfahren zur herstellung von fasermatten auf kunststoffbasis.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3147308 1981-11-28
DE19813147308 DE3147308A1 (de) 1981-11-28 1981-11-28 Isoliermaterial aus melaminharz-fasermatten

Publications (2)

Publication Number Publication Date
EP0080655A1 EP0080655A1 (fr) 1983-06-08
EP0080655B1 true EP0080655B1 (fr) 1986-02-05

Family

ID=6147491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110624A Expired EP0080655B1 (fr) 1981-11-28 1982-11-18 Procédé de fabrication de nappes de fibres à base de matière plastique

Country Status (3)

Country Link
EP (1) EP0080655B1 (fr)
AT (1) ATE17880T1 (fr)
DE (2) DE3147308A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3612857C3 (de) * 1986-04-16 1999-07-29 Gruenzweig & Hartmann Dämmstoffbahn aus Mineralfaserfilz
US6793772B2 (en) 1997-12-04 2004-09-21 Basf Aktiengesellschaft Use of melamine resin fibers and insulating materials based on melamine resin fibers and polyalkylene terephthalate fibers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6930307U (de) * 1969-07-29 1969-12-11 Glanzstoff Ag Daemm-matte

Also Published As

Publication number Publication date
ATE17880T1 (de) 1986-02-15
DE3269019D1 (en) 1986-03-20
DE3147308A1 (de) 1983-06-01
EP0080655A1 (fr) 1983-06-08

Similar Documents

Publication Publication Date Title
DE1910419C3 (de) Novolak-Fasern und Verfahren zu ihrer Herstellung
DE102005063381A1 (de) Verfahren zur Herstellung von formaldehydfrei gebundener Mineralwolle sowie Mineralwolleprodukt
DE2505946C2 (de) Wärmehärtbare Präpolymere, Verfahren zu deren Herstellung, sowie Verfahren zur Herstellung wärmegehärteter Produkte
EP0093965B1 (fr) Procédé pour la préparation de filaments ou de fibres constitués pour au moins 80% en poids de condensats de mélamine-formaldehyde
EP1866471B1 (fr) Procede de production de non-tisses thermodurcissables a fibres superfines caracterises par un effet protecteur accru en matiere d'ignifugation et d'isolation thermique et acoustique
EP0080655B1 (fr) Procédé de fabrication de nappes de fibres à base de matière plastique
EP1226749B1 (fr) Procédé de fabrication des matériaux fibreux absorbant de l'eau
DE4331656A1 (de) Bindemittelgemisch
DE2211437C3 (de) Flammfester Endlosfaden und Verfahren zu seiner Herstellung
DE2700608A1 (de) Nichtbrennbarer verbund-daemmstoff
EP0800543B2 (fr) Resines de melamine modifiees et leur utilisation pour fabriquer des stratifies postformes
DE2255567A1 (de) Fasriges produkt, dessen herstellung und dessen verwendung
DE1444082A1 (de) Verfahren zur Herstellung von Glasfasermatten
DE2620478A1 (de) Verfahren zur herstellung von loesungen haertbarer harnstoff-formaldehydharze
EP1034328B1 (fr) Utilisation de fibres de resine melaminique et materiaux isolants a base de fibres de resine melaminique et de fibres de poly (alkylene- terephtalate)
EP0074551B1 (fr) Masse de moulage contenant des précondensats de tricétoimidazolidine, leur application et procédé de préparation d'un corps composite de précondensat de tricétoimidazolidine apte à ce but
DE2344559C3 (de) Wärme- und Flammbeständige Papiere und Verfahren zu ihrer Herstellung
DE102010064103A1 (de) Dämmmaterial
DE1520636C (de) Verfahren zur Herstellung von intern plastifizierten Phenol-Formaldehyd-Kondensationsprodukten
DE2646325C2 (de) Phenolharzfasern oder -filme und Verfahren zu ihrer Herstellung
AT351271B (de) Verfahren zur herstellung von schaumkunst- stoffen mit verbessertem brandverhalten
DE2110612C3 (de) Verfahren zur Verfestigung von Glasfaservliesen und -matten
DE102004008822A1 (de) Isolierstoff und Verfahren zu dessen Herstellung
DE1595086B2 (de) Verfahren zur herstellung einer impraegnierfluessigkeit fuer textilarmierungen
DE1520636B2 (de) Verfahren zur herstellung von intern plastifizierten phenol formaldehyd kondensationsprodukten

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19821211

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI SE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 17880

Country of ref document: AT

Date of ref document: 19860215

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3269019

Country of ref document: DE

Date of ref document: 19860320

ET Fr: translation filed
R20 Corrections of a patent specification

Effective date: 19860731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 82110624.2

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011017

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20011018

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20011024

Year of fee payment: 20

Ref country code: AT

Payment date: 20011024

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011116

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011121

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20011220

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20021117

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20021117

Ref country code: CH

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20021117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20021118

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Effective date: 20021117

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed