WO2002074530A1 - Synthetic textile support for bituminous roofing sheaths - Google Patents

Synthetic textile support for bituminous roofing sheaths Download PDF

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Publication number
WO2002074530A1
WO2002074530A1 PCT/EP2002/002801 EP0202801W WO02074530A1 WO 2002074530 A1 WO2002074530 A1 WO 2002074530A1 EP 0202801 W EP0202801 W EP 0202801W WO 02074530 A1 WO02074530 A1 WO 02074530A1
Authority
WO
WIPO (PCT)
Prior art keywords
textile support
layer
mat
synthetic textile
layers
Prior art date
Application number
PCT/EP2002/002801
Other languages
French (fr)
Inventor
Achille Locatelli
Original Assignee
Freudenberg Politex S.R.L.
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 Freudenberg Politex S.R.L. filed Critical Freudenberg Politex S.R.L.
Publication of WO2002074530A1 publication Critical patent/WO2002074530A1/en

Links

Classifications

    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—Polyesters
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • 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
    • D04H13/00—Other non-woven fabrics
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • 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
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0013—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using multilayer webs
    • 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
    • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/02—Roof covering by making use of flexible material, e.g. supplied in roll form of materials impregnated with sealing substances, e.g. roofing felt
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen

Definitions

  • the present invention refers to a synthetic textile support for bituminous roofing sheaths.
  • the synthetic textile support consists of two non- woven layers of polyester flock or continuous fibers. Between the two layers, reinforcing material of various kind that ranges from glass filaments to glass film, to polyester fiber film with discontinuous short filaments and so on is interposed.
  • a synthetic textile support is illustrated consisting of two layers of non- woven polyester fiber mat, between which a plurality of continuous reinforcing filaments, made of polyester filaments, is interposed that are arranged in parallel as regards one another, in the longitudinal direction of the textile support.
  • the number of filaments that can be used cannot be higher than a certain quantity, since there are problems of physical space insufficiency for the extrusion heads of the same filaments.
  • scope of the present invention is to obviate to the problems of the known technique. According to the present invention, such scope is attained by means of a synthetic textile support for bituminous sheaths, comprising a first and a second layer of continuous filament mat, characterised in that it additionally comprises between said first and second mat layers a third mat layer made of continuous filaments arranged in the longitudinal direction of said textile support.
  • Owing to the present invention it is possible to provide a fabrication process in which the three layers, making up as a whole the roofing sheath, are more integrated with each other. Owing to the present invention it is possible to provide a process for the fabrication of the coating layers that is more resistant to heat stresses and traction stresses as compared with the processes of the known art.
  • Figure 1 schematically shows an embodiment of the process for the production of the textile support according to the present invention
  • Figure 2 schematically shows the textile support in a plan view according to the present invention
  • Figure 3 shows the textile support in section along line III - III in Figure 2.
  • a first layer 1 with continuous filaments 2 is manufactured by extrusion of a melt polyester polymer from a first series of extrusion heads A and placed on a conveyor belt 3.
  • a second layer 5 and a third layer 6 With equal procedure a second layer 5 and a third layer 6, the latter with continuous filaments 7 arranged in longitudinal direction, interposed between said first layer 1 and said second layer 5, are also obtained.
  • the layer 5 is obtained by extrusion from the same melt polymer from a second series of extrusion heads B, as well as the layer 6 is obtained by extrusion of the same or different melt polymer from a third series of extrusion heads C.
  • a multi-layer textile support 4 (shown in Figures 1 and 2), consisting of the superimposition of the three layers, respectively 1, 6 and 5.
  • the textile support according to the invention is therefore made up of two layers 1 and 5 of continuous filament mat, between which a third layer 6 is interposed as a sandwich which is made of the same materials of the other two layers 1 and 5 or of different material, but in any case still as a continuous filament, this time arranged in the longitudinal direction.
  • a multi- layer textile support is obtained that is more homogenous as compared with the known products, and that can be made with different characteristics and shapes as compared with the known ones.
  • a greater filament density is obtained, so as to provide a resistance of the multi-layer support higher than what provided by the known art.
  • the textile multi-layer support according to the present invention serves to the formation of supports for bituminous roofing sheaths

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Multicomponent Fibers (AREA)

Abstract

The present invention refers to a synthetic textile support for bituminous sheaths, comprising a first (1) and a second (5) layer of continuous filament mat, between which a third mat layer (6) made up of continuous filaments arranged in the longitudinal direction of said textile support is interposed.

Description

"Synthetic textile support for bituminous roofing sheaths".
DESCRIPTION The present invention refers to a synthetic textile support for bituminous roofing sheaths.
In roofing techniques the use of bituminous sheaths having a synthetic textile support is known. The synthetic textile support consists of two non- woven layers of polyester flock or continuous fibers. Between the two layers, reinforcing material of various kind that ranges from glass filaments to glass film, to polyester fiber film with discontinuous short filaments and so on is interposed. •
In EP 0862667, in the name of the Applicant, a synthetic textile support is illustrated consisting of two layers of non- woven polyester fiber mat, between which a plurality of continuous reinforcing filaments, made of polyester filaments, is interposed that are arranged in parallel as regards one another, in the longitudinal direction of the textile support.
In this way a synthetic textile support is obtained, that solves both the problem of the transversal stretching of the product during the stage of impregnation with bitumen and the problem of assuring an adequate resistance of the bituminous sheath to the heat excursion that the sheath can undergo.
However a support thus made has as a limit the number of filaments that can be inserted between the two layers.
In fact, the number of filaments that can be used cannot be higher than a certain quantity, since there are problems of physical space insufficiency for the extrusion heads of the same filaments.
In addition the insertion of the reinforcing filaments is a complication for the production process and the equipment being used.
In view of the state of the art described, scope of the present invention is to obviate to the problems of the known technique. According to the present invention, such scope is attained by means of a synthetic textile support for bituminous sheaths, comprising a first and a second layer of continuous filament mat, characterised in that it additionally comprises between said first and second mat layers a third mat layer made of continuous filaments arranged in the longitudinal direction of said textile support.
Owing to the present invention it is possible to provide a fabrication process in which the three layers, making up as a whole the roofing sheath, are more integrated with each other. Owing to the present invention it is possible to provide a process for the fabrication of the coating layers that is more resistant to heat stresses and traction stresses as compared with the processes of the known art.
Owing to the present invention a process for the fabrication of the coating layers is obtained that turns out to be simpler to be made as compared with the processes of the known art.
The characteristics and the advantages of the present invention will become evident from the following detailed description an embodiment thereof, that is illustrated as non limiting example in the enclosed drawings, in which: Figure 1 schematically shows an embodiment of the process for the production of the textile support according to the present invention; Figure 2 schematically shows the textile support in a plan view according to the present invention;
Figure 3 shows the textile support in section along line III - III in Figure 2.
According to what schematised in Figure 1 a first layer 1 with continuous filaments 2 is manufactured by extrusion of a melt polyester polymer from a first series of extrusion heads A and placed on a conveyor belt 3. With equal procedure a second layer 5 and a third layer 6, the latter with continuous filaments 7 arranged in longitudinal direction, interposed between said first layer 1 and said second layer 5, are also obtained.
In particular the layer 5 is obtained by extrusion from the same melt polymer from a second series of extrusion heads B, as well as the layer 6 is obtained by extrusion of the same or different melt polymer from a third series of extrusion heads C.
In this way a multi-layer textile support 4 is obtained (shown in Figures 1 and 2), consisting of the superimposition of the three layers, respectively 1, 6 and 5. The textile support according to the invention is therefore made up of two layers 1 and 5 of continuous filament mat, between which a third layer 6 is interposed as a sandwich which is made of the same materials of the other two layers 1 and 5 or of different material, but in any case still as a continuous filament, this time arranged in the longitudinal direction. In this way a multi- layer textile support is obtained that is more homogenous as compared with the known products, and that can be made with different characteristics and shapes as compared with the known ones. In addition, with the interposition of said third layer 6 a greater filament density is obtained, so as to provide a resistance of the multi-layer support higher than what provided by the known art.
Finally a support thus made is obtainable with a simpler process and equipment as compared to what provided by the known art, because the series of heads A, B and C necessary for the creation of the multi-layer complex have the same technical characteristics. The textile multi-layer support according to the present invention serves to the formation of supports for bituminous roofing sheaths

Claims

1. Synthetic textile support for bituminous sheaths, comprising a first (1) and a second (5) layer of continuous filament mat, characterised in that in addition it comprises between said first (1) and second (5) mat layers a third mat layer (6) made up of continuous filaments that are arranged in the longitudinal direction of said textile support.
2. Synthetic textile support for bituminous sheaths according to claim 1, characterised in that said first (1), second (5) and third (6) mat layers are made by extrusion of polyester polymer.
3. Synthetic textile support for bituminous sheaths according to claim 1, characterised in that said third mat layer (6) is homogenous with said first (1) and second (5) mat layers.
4. Synthetic textile support for bituminous sheaths according to claim 1, characterised in that said third mat layer (6) is not homogenous with said first (1) and second (5) mat layers.
5. Synthetic textile support for bituminous sheaths according to claim 1, characterised in that said first (1) and said second (5) mat layers are non- woven mat layers.
PCT/EP2002/002801 2001-03-15 2002-03-11 Synthetic textile support for bituminous roofing sheaths WO2002074530A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2001A000547 2001-03-15
IT2001MI000547A ITMI20010547A1 (en) 2001-03-15 2001-03-15 SYNTHETIC TEXTILE SUPPORT FOR BITUMINOUS SHEATHS FOR ROOF COVERING

Publications (1)

Publication Number Publication Date
WO2002074530A1 true WO2002074530A1 (en) 2002-09-26

Family

ID=11447274

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/002801 WO2002074530A1 (en) 2001-03-15 2002-03-11 Synthetic textile support for bituminous roofing sheaths

Country Status (2)

Country Link
IT (1) ITMI20010547A1 (en)
WO (1) WO2002074530A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005047615A1 (en) * 2003-11-17 2005-05-26 Freudenberg Politex S.R.L. Synthetic textile support for bituminous sheath, preferably for roof covering

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5118550A (en) * 1988-12-13 1992-06-02 Rhone Poulenc Fibres Substrate based on a nonwoven sheet made of chemical textile
EP0603633A1 (en) * 1992-12-15 1994-06-29 Hoechst Aktiengesellschaft Three-component laminate
WO1997018364A2 (en) * 1995-11-16 1997-05-22 Freudenberg Politex S.R.L. A synthetic textile support for bituminous sheaths, particularly for coating roofs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5118550A (en) * 1988-12-13 1992-06-02 Rhone Poulenc Fibres Substrate based on a nonwoven sheet made of chemical textile
EP0603633A1 (en) * 1992-12-15 1994-06-29 Hoechst Aktiengesellschaft Three-component laminate
WO1997018364A2 (en) * 1995-11-16 1997-05-22 Freudenberg Politex S.R.L. A synthetic textile support for bituminous sheaths, particularly for coating roofs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005047615A1 (en) * 2003-11-17 2005-05-26 Freudenberg Politex S.R.L. Synthetic textile support for bituminous sheath, preferably for roof covering

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Publication number Publication date
ITMI20010547A1 (en) 2002-09-15

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