DE1544771A1 - Process for improving the glow resistance of mats and molded bodies made of glass and / or mineral wool bound with phenol-formaldehyde resins - Google Patents

Process for improving the glow resistance of mats and molded bodies made of glass and / or mineral wool bound with phenol-formaldehyde resins

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Publication number
DE1544771A1
DE1544771A1 DE19651544771 DE1544771A DE1544771A1 DE 1544771 A1 DE1544771 A1 DE 1544771A1 DE 19651544771 DE19651544771 DE 19651544771 DE 1544771 A DE1544771 A DE 1544771A DE 1544771 A1 DE1544771 A1 DE 1544771A1
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DE
Germany
Prior art keywords
phenol
glass
mats
mineral wool
improving
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
Application number
DE19651544771
Other languages
German (de)
Inventor
Weissenfels Dr Franz
Juenger Dr Hans
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.)
Dynamit Nobel AG
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Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of DE1544771A1 publication Critical patent/DE1544771A1/en
Pending legal-status Critical Current

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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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/12—Condensation polymers of aldehydes or ketones
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/24—Coatings containing organic materials
    • C03C25/26—Macromolecular compounds or prepolymers
    • C03C25/32—Macromolecular compounds or prepolymers obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C03C25/34—Condensation polymers of aldehydes, e.g. with phenols, ureas, melamines, amides or amines
    • 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
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/12—Condensation polymers of aldehydes or ketones
    • C04B26/122—Phenol-formaldehyde condensation polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/55—Boron-containing compounds

Description

DYNAMIT NOBEL AKTIENGESELLSCHAFT Troisdorf / Bez. KölnDYNAMIT NOBEL AKTIENGESELLSCHAFT Troisdorf / Bez. Cologne

Verfahren zur Verbesserung der Glimmfestigkeit von mit Phenolformal dehydharζen gebundenen Matten und Formkörpern aus Glas- und/oder MineralwolleProcess to improve the glow resistance of phenol formaldehyde-hard bonded mats and moldings made of glass and / or mineral wool

Die Herstellung von mit Phenolharzen gebundenen Glas- und Mineralwolleplatten bzw. Formkörpern ist bekannt und wird in großtechnischem Maßstab ausgeführt. Das Aufbringen des Bindemittels erfolgt dabei entweder im Sprüh- oder Tauchverfahren, gegebenenfalls unmittelbar anschließend an die Herstellung der Glas- bzw. Mineralwollefasern zu einem Zeitpunkt, da letztere noch nicht völlig abgekühlt sind. Den als Bindemittel benutzten Phenolharzen werden bei der großtechnischen Fertigung Zusätze ver- . schiedener Art beigegeben, die z.B. die Verteilung des Bindemittels auf der Faser beeinflussen, die Färbung der fertigen Matten bestimmen, der Bindung eine gewisse Elastizität und der Matte eine gewisse Griffigkeit verleihen. Zur Erzielung der genannten Eigenschaften werden u.a. Emulgatoren, Salze anorganic scher und/oder organischer Säuren,j Mineralwolle, Mineralöle, Kunststoff-Dispersionen, lfaturhar»W (gegeT>«nenf»lls in abgewandelter Form) o, dergl» verwende!!·The manufacture of glass and mineral wool panels bonded with phenolic resins or molded bodies is known and is carried out on an industrial scale. The application of the binder takes place either by spraying or immersion, if necessary immediately after the production of the glass or mineral wool fibers at a point in time when the latter has not yet been done have cooled down completely. Additives are added to the phenolic resins used as binders in large-scale production. various types are added, which e.g. affect the distribution of the binder on the fiber, the coloring of the finished product Determine mats, give the binding a certain elasticity and the mat a certain grip. To achieve the above Properties are among others emulsifiers, salts anorganic shear and / or organic acids, j mineral wool, mineral oils, Plastic dispersions, lfaturhar »W (GegeT>« nenf »lls in modified Form) o, so »use !! ·

Phenolharzgebunden· Glas- und Min*ralwoll»matten mit ein·* Üblichen Bindemittelgehalt von etwa 3 «· 10 j6 Feathers, btiegim auf das Fasergewioht, können aber keinesfalls als unbrennbar· Isolier-.'stoffe angesehen werden, da di· O^idationsfähigkeit dts mit b#-Phenolic resin-bonded · glass and mineral wool »mats with a · * usual binder content of about 3« · 10 6 feathers, depending on the Fiber-weight, but can in no way be used as non-flammable · insulating -. 'Materials be considered, since the ability to idle dts with b # -

009814/1730 " % "009814/1730 " % "

sonders großer Oberfläche und in guter Wärmeisolierung vorliegenden Kunstharzes unter bestimmten Verhältnissen) z.B. bei ausreichend hoher Anfangstemperatur, zu Glimm- und Schwelbränden führt· Die Glimmneigung einer mit etwa 3 - 10 i» Phenolharz gebundenen Glas- oder Mineralwolle läßt sich gut beurteilen, indem «an eine elektrisch beheizte Glühdrahtspirale einbettet und diese ca. 30 Hin. auf Θ00 - 900°C anheizt. Dabei bildet lieh kugelförmig um die glühende Spirale eine Glimmzone aus, deren Durchmesser um so größer ist, je höher die Brand- bzw. Crliamneigung der Matte ist.Sonder's large surface area and good thermal insulation present resin under certain conditions), for example, at a sufficiently high initial temperature to glow and smoldering The Glimmneigung leads · one with about 3 - i 10 "phenolic resin bonded glass or mineral wool can be judged well by" on embeds an electrically heated glow wire spiral and this approx. 30 Hin. heats up to Θ00 - 900 ° C. In this case, a glow zone is formed in a spherical shape around the glowing spiral, the diameter of which is greater, the higher the tendency of the mat to burn or become crimped.

Ee wurde nun gefunden, daß man die Gliamfestigkeit von mit Phenolformaldehydharzen gebundenen Hatten und Formkörpern aus Glas- und/oder Mineralwolle erheblich verbessern kann, wenn man in der Weise arbeitet, daß man den Bindemitteln Borsäureanhydrid, Borsäuren, z.B. Orthoborsäure oder Metaborsäure, Ammonium- und/oder Natrium-Salze von Borsäuren, aromatische Bor- und/oder Polyborsäureeater, z.B. des Phenols, Kresole oder Xylenols) in einer Menge von 5 - 60 56, bezogen auf das Kunstharz, während oder nach ihrer Herstellung zusetzt. Nachträgliche Zugabe soll auch bedeuten, daß man die Borverbindungen, gegebenenfalls in Lösung, vor oder nach der Aufbringung des Kunstharzfilmes auf die Faser aufgibt. Zweckmäßig verwendet man bei nachträglichem Zuschlag der Borverbindungen flüssig« oder gelöste Kunstharze aus Formaldehyd und Phenol, Kresöl, Xylenol oder deren Gemischen, die mit Wasser veriünnbar sind, und deren Ti-^osität nach Höppler bei 20*0 kleiner ist als 2.000 cP. Sie Au;,,Jrtung erfolgt in an sich btkaimter Weis·.It has now been found that the Gliam strength of phenol-formaldehyde resins and molded articles made of glass and / or mineral wool can be significantly improved if one works in such a way that the binders boric anhydride, boric acids, e.g. orthoboric acid or metaboric acid, ammonium and / or Sodium salts of boric acids, aromatic boron and / or polyboric acid esters, e.g. of phenol, cresols or xylenol) in one Amount from 5 - 60 56, based on the synthetic resin, during or after adds to their production. Subsequent addition should also mean that the boron compounds, if appropriate in solution, before or after the resin film is applied to the fiber gives up. If the boron compounds are added subsequently, liquid or dissolved synthetic resins made from formaldehyde and phenol, crescent oil, xylenol or mixtures thereof are expediently used Water are dilutable, and their ti- ^ osity according to Höppler at 20 * 0 is less than 2,000 cP. You Au; ,, Jrtung takes place in itself btkaimter Weis ·.

1t1t

fin rUÄder Drahtkorb (#15 cm, Höh· 19 em) »ird ad* 120 g looker ftiefeiohteter "l&sw?11« gleichmäßig randvo?1 gefüllt und die Glas-fin rUÄder wire basket (# 15 cm, Hoh · 19 em) »ird ad * 120 g looker ftiefeiohteter" l sw? 1 1 "evenly randvo? filled 1 and the glass 009814/1730 - 3 -009814/1730 - 3 -

BAD ORIGINALBATH ORIGINAL

15447711544771 22 33 44th wolle dann durch Ti-ac^tn »it then want to go through Ti-ac ^ tn »it den Bindemittel-Dispersionen 1 «· 4the binder dispersions 1 «· 4 500500 500500 500500 benetzt.wetted. 2525th 2525th 2525th Tabelle 1Table 1 10001000 10001000 10001000 Bindemittelbinder 11 Phenolharz T 655* Cg)Phenolic resin T 655 * Cg) 500500 Ammoniumhydroxid 25j£ig (g)Ammonium hydroxide 25 years (g) 2525th 1010 1010 1010 HTOS-Losttttg ** {g) HTOS Losttttg ** {g)
aus» 90 Teilen Wasserfrom »90 parts of water 10001000 .40.40 4040 4040 5 Teilen AH4OH 25#ig5 parts AH 4 OH 25 # ig 924924 924924 924924 5 Teilen HTOS5 parts HTOS •• 2020th 4040 6060 Ammoniumaoetatlösung 50?£ig(g)Ammonium acetate solution 50? Ig (g) 1010 Ammoniumsulfatlösung 20^ig(g)Ammonium sulfate solution 20 ig (g) 4040 Wasser (g)Water (g) 924924 Vatriumtetraborat (g)Sodium tetraborate (g) --

* Phenolharz T 655 ist ein ca. 40 i» Festharz enthaltendes, wässriges Phenol-Beaolharz der Lieferfirma« Dynamit Sobel AG, Troisdorf * Phenolic resin T 655 is an approx. 40 liter » solid resin containing, aqueous phenolic resin from the supplier« Dynamit Sobel AG, Troisdorf

** Präparat 'HTOS ist ein leicht verseifbarea ffaturharzprodukt auf Basis von Kolophonium der Lieferfirmaι Friedrieh Jennes KG, Köln-Junkersdorf.** preparation 'is an easily HTOS verseifbarea ffaturharzprodukt based on rosin of the supplier company ι Friedrieh Jennes KG, Köln-Junkersdorf.

Nach dem Tauchen wird das überschüssige Bindemittel durch Schleudern Ton der Glaswolle entfernt und der so erhaltene, etwa zylindrisone«. noch-feuchte tHaswollestoß zur Härtung des a^e*- br ach ten Bindemittels 24 Stunden bei 120°C im Trockenschrank gelagert · Ton den mit den Bindepitteln 1-4 imprägnierten GlasfasermattenAfter dipping, the excess binding agent is removed by spinning the clay from the glass wool and the so obtained, about cylindrisone ”. still-moist tHaswool pile to harden the a ^ e * - Broken binder stored in a drying cabinet at 120 ° C for 24 hours Clay the fiberglass mats impregnated with binders 1-4

0
O0
O wurden der reraschbare Bindemittelgehalt,were the quick-release binder content, 11 22 ,8,8th die Rohdichte und diethe bulk density and the *
4,4*
4.4 OOOO Glimmfestigkeit geprüft.Resistance to glowing tested. 5,5, 4i4i ,061, 061 0,0760.076 Tabelle 2Table 2 O1 O 1 O1 O 1 22 4,14.1 >;>; Versuchattempt 6,6, . 5,. 5, 33 BAD ORIGINALBATH ORIGINAL COCO Veraschbare Bindemittel
anteileIncinerable binders
shares 4,74.7 OO Rohdichte g/cm5 Bulk density g / cm 5 o,C73o, C73 φ der Glimmzone φ of the glow zone 4,54.5 ΛΛ »063»063 55

Die Grlimüifestigkeit wurde in folgender Yersuchsanordnung bestimmt. Der nach der Imprägnierung und Härtung noch ca» 10 cm hohe Glasfessrstoß rnirde in 3 cm Höhe aufgeschnitten und in der Mitte des kreisförmigen Querschnittes wurde sine 50-Watt Glühspirale* angeordnet» In der Slühsprirale selbst wurde sur Messung der Temperatur oia Sisen-OonEtsntan-ShernioelemeKt fixiert, Der zylindrische Glasfesoi'stoia '.iiiTiie ofoe-n und unten mit. einer Asbestplatte abgedeckt "Z?A in -iinsr Hai-ölvorrichtung auf 3/4 seiner ursprünglichen HöheThe green resistance was determined in the following test arrangement. After impregnation and hardening, the glass joint, which was about 10 cm high, was cut open at a height of 3 cm and a 50-watt glow coil * was placed in the middle of the circular cross-section fixed, the cylindrical Glasfesoi'stoia '.iiiTiie ofoe-n and below with. a sheet of asbestos covered "Z? A in -iinsr shark oil device at 3/4 of its original height

ο c-"3r,3iKengeär-üi3kio Die GlüiaspiralG vrurd© für 30 Kin» auf 830-850 C bc-hi'.i.zi0 Gabe:3. Mluoto sieh kugelförmig us die Spirale eine deut-3.L.Cih Er.^-hie^rs GlisEsoiiO eus« Die in uqt Tabelle 2 wiedergegebeiiozi "ve'"3sehcsrg0£)sii3SG ssiges^ wie eir* Zusatz von ?..B« Natriumiefeefeorat 2ine ??:?i:l&iKsrasg der Glimiasoae eewirfet.ο c- "3r, 3iKengeär-üi3ki o The GlüiaspiralG vrurd © for 30 children on 830-850 C bc-hi'.i.zi 0 Gift: 3. Mluoto looks spherical us the spiral a clear-3.L.Cih Er. ^ - hie ^ rs GlisEsoiiO eus «The in uqt Table 2 wiedergegebeiiozi" ve '"3sehcsrg0 £) sii3SG ssiges ^ wie eir * addition of? .. B« Sodium Feorat 2ine ??:? I: l & iKsrasg of Glimiasoae eewirfet.

'ϊΓ:0 g SleoTolle "7Gijdon eseilog, sis is Beispiel 'i beschrieben5 mit βίκ,ΐΓ 20 gouoiSi^sH A-csBrig -7sa Boriias'g B IkOO** in Ä'cäanol benatst ΐΐϋα ias illiorBöhüssigs Bindaiaittel durch Abachieudera von der 31 £s r/olle eaitfesTito I;er ^o örlialteae- aoch ä'uhanolfeuchte Glaswolle- βϊοΒ wurdG SU2" Härtung öee aufgebrasiiterA Bindemittels 4 Stunden bc-i Sö^C -und ansclilioßead 15 Stundss bai ISO'C in einem Trocken-3C;iiX-c.nk gelßgsr'öa i)xe Rohdichte der 30 hergestellten borharzgesu£2de:iSii GiasucllG botrug O9Oo6 iier v^iceschbar-a Bindesittelanteil 5;1 fjc I":is ?rüf«:ig· der irlisafcsiigssiu erfolgte asit {Lci-äellj-ön I.iGEc-3iordnu!ig t?iQ is isGicpiel i» .Der Darchaosper der C-?.iT;v.iaone- «ί«'ϊΓ: 0 g SleoTolle "7Gi j don eseilog, sis is example' i described 5 with βίκ, ΐΓ 20 gouoiSi ^ sH A-csBrig -7sa Boriias'g B IkOO ** in Ä'cäanol needed ΐΐϋα ias illiorBöhüssigs binding agent by Abachieudera von der 31 £ sr / olle eaitfesTito I ; er ^ o örlialteae- aoch ä'uhanolfeuchte glass wool- βϊοΒ wurdG SU2 "Hardening öee aufrasiiterA binder 4 hours bc-i Sö ^ C -und ansclilioßead 15 hours bai ISO'C in a dry- 3C; iiX-c.nk gelßgsr'öa i) xe bulk density of the 30 boron-resin sweeteners produced: iSii GiasucllG botrug O 9 Oo 6 iier v ^ iceschbar-a binder content 5; 1 fjc I " : is? Rüf«: ig · der irlisafcsiigssiu took place asit {Lci-äellj-ön I.iGEc-3iordnu! ig t? iQ is isGicpiel i ». The Darchaosper of the C - ?. iT; v.iaone-« ί «

-lv;"i'--?SV ;-'s 5 :ΐϋ! .-lv; "i '-? SV ; -'s 5: ΐϋ!.

,7?z 3 ϊ :C-J (iliiiujltaaaü'' ist ein "ifjtsa," pui. 73:■■■;,.-Ji-:.:"=!.-sa , 7? Z 3 ϊ: CJ (iliiiujltaaaü '' is an "ifjtsa," pui. 73: ■■■;, .- Ji -:.: "=! .- sa

': t J 1 >-μ': t J 1> -μ

_ " BAD ORlGtNAL_ "BAD ORlGtNAL

Claims (2)

Patentansprüche ιClaims ι 1. Verfahren zur Verbesserung der Glimmfestigkeit von mit Phenolformaldehydharzen gebundenen Matten und Forrakörpern aus Glas- und/oder Mineralwolle, aaduroh gekennzeichnet, daß man den Bindemitteln gegebenenfalls neben den üblichen Zuschlagstoffen Borsäureanhydrid, Borsäuren, Salze von Borsäuren oder aromatische Borsäureester in einer Menge von 5 - 60 °/ot bezogen auf das Kunstharz, während oder nach ihrer Herstellung zusetzt und in an sich bekannter Weise aushärtet, 1. A process for improving the glow resistance of mats and molded bodies made of glass and / or mineral wool bound with phenol-formaldehyde resins, aaduroh characterized in that, in addition to the usual additives, boric anhydride, boric acids, salts of boric acids or aromatic boric acid esters in an amount of 5 - 60 % t, based on the synthetic resin, is added during or after its production and cures in a manner known per se, 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß bei nachträglichem Zuschlag der Borverbindungen flüssige oder gelöste Kunstharze aus Formaldehyd und Phenol, Kreaol, Xylenol oder deren Gemischen verwendet werden, die mit Wasser verdünnbar sind, und deren Viskosität nach Höppler bei 20 0 kleiner ist als 2.000 oP.2. The method according to claim 1, characterized in that at subsequent addition of the boron compounds liquid or dissolved synthetic resins made from formaldehyde and phenol, kreaol, xylenol or mixtures thereof are used which can be diluted with water and whose viscosity according to Höppler is lower at 20 ° is than 2,000 oP. Br.Mi/Hä.Br.Mi / Hä. BAD 009814/1730 BATH 009814/1730
DE19651544771 1965-02-09 1965-02-09 Process for improving the glow resistance of mats and molded bodies made of glass and / or mineral wool bound with phenol-formaldehyde resins Pending DE1544771A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0046471 1965-02-09

Publications (1)

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DE1544771A1 true DE1544771A1 (en) 1970-04-02

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ID=7049746

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Country Status (7)

Country Link
AT (1) AT262612B (en)
BE (1) BE676219A (en)
CH (1) CH469876A (en)
DE (1) DE1544771A1 (en)
FR (1) FR1467645A (en)
GB (1) GB1144192A (en)
NL (1) NL6601578A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027222A1 (en) * 1979-10-13 1981-04-22 BASF Aktiengesellschaft Cross-linkable co-condensation products based on phenol-butyraldehyde resins and thermoplasts, their preparation and use
DE19507787C2 (en) * 1995-03-06 2000-11-09 Gruenzweig & Hartmann Process for improving the mechanical properties of a glass fiber fleece

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172042A (en) 1977-12-20 1979-10-23 Avakian Gurgen K Heat-insulating material
FR2426559A1 (en) * 1978-05-24 1979-12-21 Gay Rene Flame-resistant injection-moulded phenolic resins - gel-coated with polyester and contg. boric acid
FR2434118A1 (en) 1978-06-19 1980-03-21 Charbonnages Ste Chimique BORIC ANHYDRIDE SOLUTIONS AND THEIR USE AS RESOL HARDENERS
FR2465685A2 (en) * 1979-09-26 1981-03-27 Charbonnages Ste Chimique Anhydrous conc. boric anhydride solns. - using mixt. of organic solvents, pref. tri:methyl borate and methanol or methylal to enhance dissolution speed
FR2481294A1 (en) 1980-04-24 1981-10-30 Charbonnages Ste Chimique PROCESS FOR CURING FURANNIC RESINS
FR2481194A1 (en) * 1980-04-24 1981-10-30 Charbonnages Ste Chimique BORON LAMINATED MATERIALS BASED ON PHENOLIC RESIN
FR2568575B1 (en) * 1984-08-03 1986-09-05 Charbonnages Ste Chimique NEW PHENOLIC RESIN COMPOSITIONS
FR2588562B1 (en) * 1985-10-10 1988-04-22 Charbonnages Ste Chimique PROCESS FOR THE MANUFACTURE OF PHENOLIC RESIN-FREE SAMPLE PREPREGNATES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027222A1 (en) * 1979-10-13 1981-04-22 BASF Aktiengesellschaft Cross-linkable co-condensation products based on phenol-butyraldehyde resins and thermoplasts, their preparation and use
DE19507787C2 (en) * 1995-03-06 2000-11-09 Gruenzweig & Hartmann Process for improving the mechanical properties of a glass fiber fleece

Also Published As

Publication number Publication date
AT262612B (en) 1968-06-25
BE676219A (en) 1966-08-08
GB1144192A (en) 1969-03-05
CH469876A (en) 1969-03-15
NL6601578A (en) 1966-08-10
FR1467645A (en) 1967-01-27

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