DE2822909A1 - FIBERGLASS MAT - Google Patents
FIBERGLASS MATInfo
- Publication number
- DE2822909A1 DE2822909A1 DE19782822909 DE2822909A DE2822909A1 DE 2822909 A1 DE2822909 A1 DE 2822909A1 DE 19782822909 DE19782822909 DE 19782822909 DE 2822909 A DE2822909 A DE 2822909A DE 2822909 A1 DE2822909 A1 DE 2822909A1
- Authority
- DE
- Germany
- Prior art keywords
- mat
- glass fiber
- fiber threads
- threads
- mat according
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/03—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers with respect to the orientation of features
-
- 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
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
- B29C70/081—Combinations of fibres of continuous or substantial length and short fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/04—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a layer being specifically extensible by reason of its structure or arrangement, e.g. by reason of the chemical nature of the fibres or filaments
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/08—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of fibres or yarns
-
- 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
- B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
-
- 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
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
- B29K2105/128—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles in the form of a mat
-
- 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
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/08—Glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2471/00—Floor coverings
- B32B2471/04—Mats
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Laminated Bodies (AREA)
Description
-A--A-
Die Verbesserung der Erfindung gemäß der Hauptpatentanmeldung P 27 17 734.0 geht aus von einer Glasfasermatte gemäß dem Oberbegriff des Anspruchs 1.The improvement of the invention according to the main patent application P 27 17 734.0 is based on a glass fiber mat according to the preamble of claim 1.
Ausgangspunkt der Verbesserung ist die Erkenntnis, daß in die Matte zur Verstärkung eingelegte5geradlinig verlaufende Glasfaserfäden unter bestimmten Bedingungen die Matte aufreißen oder sonstwie das Entstehen von Schäden in der Matte fördern können. Die Verbesserung bezweckt, diesen Nachteil der geradlinigen Glasfaserfäden zu beseitigen,ohne die Festigkeit der Matten zu schmälern. Es gelingt dies mit Matten, wie sie im Anspruch 1 beschrieben sind; vorteilhafte Weiterbildungen solcher Matten sind Gegenstand der Unteransprüche.The starting point for the improvement is the knowledge that 5 straight glass fiber threads inserted into the mat for reinforcement can, under certain conditions, tear the mat or otherwise promote the development of damage in the mat. The aim of the improvement is to eliminate this disadvantage of the straight glass fiber threads without reducing the strength of the mats. This is achieved with mats as described in claim 1; advantageous developments of such mats are the subject of the subclaims.
Unter der Maschinenrichtung der Matte wird die Richtung verstanden, in der die Matte bei der Herstellung die Herstellmaschine verläßt. Es ist die Längsrichtung der Matte, in der auch die schlangenlinienförmig verlaufenden Glasfaserfäden orientiert sind.The machine direction of the mat is understood to mean the direction in which the mat leaves the manufacturing machine during manufacture. It is the longitudinal direction of the mat, which is also the serpentine running glass fiber threads are oriented.
Ö09829/0538Ö09829 / 0538
Grundgedanke der Erfindung ist es, die ehemals geradlinigen Glasfaserfäden zu verlängern, sie in Schlangenlinien zu verlegen und ihre Lagen von den Lagen der übrigen, mehr oder weniger regellos angeordneten Glasfaserfäden sauber zu trennen, d.h. genügend Grundsubstanz dazwischen vorzusehen.The basic idea of the invention is to lengthen the formerly straight glass fiber threads, to lay them in serpentine lines and cleanly separate their layers from the layers of the other, more or less randomly arranged glass fiber threads, i.e. to provide enough basic substance in between.
Unter einem in Schlangenlinien verlegten Faden wird hier ein Faden verstanden, der von einer Geraden durch in einer Ebene liegende, abwechselnd zur einen und zur anderen Seite erfolgte Auslenkungen des Fadens abweicht.Under a thread laid in a serpentine line there is a Understood thread that was made from a straight line through lying in one plane, alternating to one and the other side Deflections of the thread deviates.
Anhand der beigefügten Zeichnungen wird die Verbesserung nachfolgend eingehender erläutert.The improvement is shown below with reference to the accompanying drawings explained in more detail.
F i g . 1 zeigt in verschiedenen Ebenen im Grundriß eine Glasfasermatte, in der zusammen mit regellos angeordneten Glasfäden und Glasfadenabschnitten noch längsverlaufende Glasfäden vorgesehen sind, undF i g. 1 shows a glass fiber mat in plan in different levels, in which, together with randomly arranged Glass threads and sections of glass thread still longitudinal glass threads are provided, and
F i g . 2 zeigt als Detail in der Matte aus Fig. 1 die Lage mit längsverlaufenden Glasfäden, in der ein Defekt sichtbar ist.F i g. As a detail in the mat from FIG. 1, FIG. 2 shows the layer with longitudinally running glass threads in which a defect is visible.
909829/0538909829/0538
Die in Fig. 1 dargestellte Glasfasermatte 10 entspricht in ihrem Aufbau der in Figur 2 der Hauptanmeldung P 27 17 734.0 dargestellten Matte; in beiden Fällen wuirfen für gleiche oder ähnliche Elemente dieselben Bezugszeichen benutzt, sodaß hinsichtlich der Beschreibung der Fig. 1 in der vorliegenden Anmeldung auf die Hauptanmeldung bezug genommen werden kann.The glass fiber mat 10 shown in FIG. 1 corresponds to FIG their structure of the mat shown in Figure 2 of the main application P 27 17 734.0; in both cases cast for the same or similar elements use the same reference numerals, so that with regard to the description of FIG. 1 in the present case Registration can be referred to the main registration.
Im Unterschied zur Figur 2 der Hauptanmeldung zeigt jedoch die Fig. 1 dieser Zusatzanmeldung eine Matte 10, in der anstelle von geradlinig und parallel zueinander angeordneten Fäden aus Glasfasern nunmehr in der dritten Lage 15 der Glasfasermatte Glasfaserfäden 31 angeordnet sind, die etwas länger sind, als es für die Anordnung von geradlinigen Fäden erforderlich wäre. Wegen ihrer größeren Länge liegen die Fäden 31 schlangenlinienförmig angeordnet in der Matte 10. Die Mittellinien der einzelnen Schlangenlinien laufen nach wie vor ungefähr parallel zueinander.In contrast to FIG. 2 of the main application, however, FIG. 1 of this additional application shows a mat 10 in which instead of of filaments made of glass fibers arranged in a straight line and parallel to one another now in the third layer 15 of the glass fiber mat Glass fiber threads 31 are arranged, which are slightly longer than it would be required for the arrangement of rectilinear threads. Because of their greater length, the threads 31 are serpentine arranged in the mat 10. The center lines of the individual serpentine lines still run approximately parallel to one another.
Für den Fachmann ist es sofort klar, daß die in Längsrichtung der Matte 10 verlaufenden Fäden 31 auch in einer Glasfasermatte verwendet werden können, ohne daß gleichzeitig Lagen von regellos orientierten Fäden aus Glasfasern vorgesehen sind, oder auchIt is immediately clear to a person skilled in the art that the threads 31 running in the longitudinal direction of the mat 10 also exist in a glass fiber mat can be used without layers of randomly oriented threads of glass fibers being provided at the same time, or else
909829/0538909829/0538
zwischen zwei Lagen aus solchen regellos orientierten Fäden,
wie sie in der Hauptanmeldung beschrieben sind. In jedem Fall befinden sich die schlangenlinienförmig angeordneten Fäden 31
aber in einer einzelnen waagerechten Ebene zwischen der Oberseite und der Unterseite der Grundsubstanz der Matte 10.between two layers of such randomly oriented threads,
as described in the main application. In any case, the threads 31 arranged in a serpentine shape are located in a single horizontal plane between the upper side and the lower side of the basic substance of the mat 10.
Es hat sich herausgestellt, daß die schlangenlinienförmig angeordneten
Fäden 31 verschiedene Vorteile haben. Geradlinig angeordnete Fäden bedecken lediglich einen schmalen Bereich und
wenn man Matten mit geradlinig angeordneten Fäden um eine zu
den geradlinigen Fäden parallele Linie biegt, dann wirken diese Fäden als Biegelinien. Derart gerichtete Biegekräfte werden
also auf eine sehr schmale Fläche in der Matte übertragen, was zu frühzeitigen Schäden der Matte führen kann. Am Übergang des
Hauptkörpers einer Dachplatte zu deren überstehendem Randbereich z.B. kann ein geradlinig und parallel zur Kante der Dachplatte
verlaufender Faden in der Matte 10 wie eine Reißleine wirken, wenn die überstehende Kante vom Wind mehrfach hin- und hergeschwenkt
wird, was durchaus passieren kann, solange die Dachhaut noch nicht versiegelt ist, z.B. durch Ankleben mittels einer am
überstehenden Randbereich der Dachplatte angebrachten selbstklebenden Haftschicht. In nördlichen Breiten kommen derartige
Schäden im Herbst und Winter häufiger vor, weil bei den tiefenIt has been found that the serpentine threads 31 have various advantages. Threads arranged in a straight line cover only a narrow area and if you have mats with threads arranged in a straight line around one
If the straight line bends parallel line, then these threads act as bend lines. Such directed bending forces are
i.e. transferred to a very narrow area in the mat, which can lead to premature damage to the mat. At the transition of the main body of a roof panel to its protruding edge area, for example, a straight and parallel to the edge of the roof panel running thread in the mat 10 can act like a rip cord if the protruding edge is swung back and forth several times by the wind, which can happen for as long the roof skin is not yet sealed, for example by gluing by means of a self-adhesive adhesive layer attached to the protruding edge area of the roof panel. In northern latitudes, such damage occurs more frequently in autumn and winter, because in the deep
909829/0538909829/0538
^.909^ .909
Umgebungstemperaturen und dem starken Wind die Kleber nicht genügend Zeit haben, ihre volle Haftwirkung zu entfalten.Ambient temperatures and the strong wind, the adhesives do not have enough time to develop their full adhesive effect.
Wenn die Biegung einer Matte 10 jedoch entlang einer Geraden erfolgt, die zu den schlangenlinienförmig angeordneten Fäden 31 annähernd parallel verläuft, dann werden die Biegekräfte auf eine vielhundertfach breitere Zone übertragen als im Fall geradlinig angeordneter Fäden. Die spezifische Flächenbelastung beim Biegen wird durch den geschlängelten Verlauf der Fäden 31 so stark herabgesetzt, daß die Fäden 31 nicht nach Art einer Reißleine die Matte 10 aufreißen können.If, however, a mat 10 is bent along a straight line leading to the threads arranged in a serpentine manner 31 runs approximately parallel, then the bending forces are transferred to a zone many hundred times wider than in the Case of straight threads. The specific surface loading during bending is determined by the meandering course of the threads 31 so greatly reduced that the threads 31 cannot tear the mat 10 in the manner of a rip cord.
Liin weiterer Vorteil der vorliegenden Verbesserung zeigt sich, wenn beim Herstellen der Matte 10 einer der von Spulen ablaufenden Fäden lü sich verfängt und plötzlich nicht weiter abläuft, was - wie jeder Angler weiß - beim Abspulen von Fäden garnicht so selten vorkommt. Wenn sich ein geradlinig in der Matte 10 angeordneter Faden verfängt, dann reißt dieser Faden in seiner Umgebung, in den Lagen darüber und darunter, auf einer größeren Länge die dort liegenden Glasfaserabschnitte aus ihrer Orientierung. Die dadurch in der Matte entstehende Fehlorientierung ist nicht ohne weiteres erkennbar. Die Matte kann jedoch entlang dieser fehler-Another advantage of the present improvement is shown if during the manufacture of the mat 10 one of the threads running off the bobbins lü gets caught and suddenly stops running, what - as every angler knows - this is not so rare when unwinding threads. When a straight line in the mat 10 If the thread gets caught, then this thread breaks in its surroundings, in the layers above and below, over a greater length the fiber optic sections lying there from their orientation. the The resulting misorientation in the mat is not easily recognizable. However, the mat can run along this fault
909829/0538909829/0538
282/909282/909
haften Linie auf einer Lange von mehreren Metern später brechen oder reißen. Häufig erkennt man den Fehler in der Hatte erst dann, wenn sie bereits - z.B. auf einem uach verlegt ist. Wenn dann eine größere Menge des Belags ausgewechselt werden muß, kann dies sehr teuer werden.line stick to a length of several meters later break or tear. Often one only recognizes the fault in the hat when it has already been laid - e.g. on a uach is. If a larger amount of the lining then has to be replaced, this can be very expensive.
Wenn sich jedoch ein schlangenlinienförmig eingebetteter Faden verfängt und plötzlich nicht weiter von seiner Spule abläuft, so führt dies dazu, daß dieser Faden ein gewisses Stück weit geradlinig in die Matte 1Ü eingebettet wird, tin solches geradliniges Fadenstück 33 ist in Fig. 2 eingezeichnet. Anhand von Fig. 2 sieht man ferner, daß ein solcher Fehler mit dem bloßen Auge in der Matte 10 leicht entdeckt werden kann, weil ein geradliniger Fadenabschnitt 33 inmitten von schlangenlinienförmig angeordneten Fäden unmittelbar ins Auge springt. Fehlerhafte Stücke können also erforderlichenfalls vor der Weiterverarbeitung sogleich herausgeschnitten werden.However, if there is a serpentine embedded If the thread gets caught and suddenly does not run out of its bobbin, this leads to the thread a certain amount Is embedded in a straight line in the mat 1Ü, tin such a straight piece of thread 33 is shown in FIG. Based on Fig. 2 it can also be seen that such an error with can easily be seen by the naked eye in the mat 10 because a straight thread section 33 in the midst of serpentine arranged threads immediately catches the eye. Defective pieces can therefore if necessary before the Further processing can be cut out immediately.
Teils wegen der \/erveidung solcher schlangenlinienf örmig angeordneter Fäden 31 und teils wegen der deutlichen Aufteilung der verschiedenen verstärkenden Fadenkonfigurationen in verschiedenen Ebenen zwischen der Oberseite und der Unterseite der Matte be-Partly because of the grazing of such meandering lines Threads 31 and partly because of the clear division of the various reinforcing thread configurations in different Levels between the top and bottom of the mat
90 9 829/053890 9 829/0538
ORIGINAL !MSPECTED "ORIGINAL! MSPECTED "
sitzen die erfindungsgemäßen Matten eine wesentlich größere Festigkeit als bekannte Matten, etwa die nach dem Verfahren von Hogendobler u.a. gefertigten Matten. Über längere Zeit hinweg vorgenommene \/ergleichsprüfungen von erfindungsgemäßen Matten und Hoqendobler-Matten haben dies erwiesen. In der unten aufgeführten Tabelle sind einige Testergebnisse der beiden Mattentypen einander gegenübergestellt, die dem Fachmann die höhere Festigkeit der erfindungsgemäßen Matte klar vor Augen führen.sit the mats according to the invention a much larger Strength than known mats, such as those manufactured using the Hogendobler et al. Process. During a longer time Compensation tests carried out away from the invention Matten and Hoqendobler mats have proven this. In the table below are some test results of the two Mat types compared with one another, which the skilled person clearly sees the higher strength of the mat according to the invention to lead.
MattentypMat type
Hogendobler-MatteHogendobler mat
erfindungsgemäße Matte mit schlangenlinienförmig eingelegten Fädenmat according to the invention with a serpentine shape inlaid threads
Gewichtweight
Heißfestigkeit nach ElmendorfHot strength to Elmendorf
Zugfestigkeit in Richtung,wie die Matte von der Maschine kommtTensile strength in the direction of how the mat from the Machine is coming
Zugfestigkeit quer zur Maschinenrichtung Cross machine direction tensile strength
y kg / 1ÜU m 266 gy kg / 1ÜU m 266 g
26 kp bei 7,b cm Angriffsbreite26 kp at 7, b cm attack width
2U kp bei 7,5 cm Angriffsbreite2U kp at 7.5 cm attack width
9 kg / 100 m'9 kg / 100 m '
466 g466 g
34 kp bei 7,5 cm Angriffsbreite34 kp at 7.5 cm attack width
32,5 kp bei 7,5 cm Angriffsbreite32.5 kp at 7.5 cm attack width
909829/0538909829/0538
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/868,725 US4135029A (en) | 1976-04-29 | 1978-01-11 | Fiberglass mat |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2822909A1 true DE2822909A1 (en) | 1979-07-19 |
Family
ID=25352213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782822909 Withdrawn DE2822909A1 (en) | 1978-01-11 | 1978-05-26 | FIBERGLASS MAT |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5497689A (en) |
BE (1) | BE867804R (en) |
DE (1) | DE2822909A1 (en) |
GB (1) | GB1601509A (en) |
NL (1) | NL7806215A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2177048B (en) * | 1985-06-01 | 1990-01-24 | Saint Gobain Isover | Mineral fibre product for use as an insulating panel or insulating strip |
-
1978
- 1978-05-23 GB GB21586/78A patent/GB1601509A/en not_active Expired
- 1978-05-26 DE DE19782822909 patent/DE2822909A1/en not_active Withdrawn
- 1978-06-05 BE BE188306A patent/BE867804R/en active
- 1978-06-07 NL NL7806215A patent/NL7806215A/en not_active Application Discontinuation
- 1978-10-20 JP JP12941778A patent/JPS5497689A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
BE867804R (en) | 1978-12-05 |
NL7806215A (en) | 1979-07-13 |
GB1601509A (en) | 1981-10-28 |
JPS5497689A (en) | 1979-08-01 |
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