EP3017103A1 - Coated glass fibre mesh fabric with reduced gross heat of combustion - Google Patents

Coated glass fibre mesh fabric with reduced gross heat of combustion

Info

Publication number
EP3017103A1
EP3017103A1 EP14734478.2A EP14734478A EP3017103A1 EP 3017103 A1 EP3017103 A1 EP 3017103A1 EP 14734478 A EP14734478 A EP 14734478A EP 3017103 A1 EP3017103 A1 EP 3017103A1
Authority
EP
European Patent Office
Prior art keywords
glass fiber
fiber mesh
mesh fabric
coated glass
pvdc
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Withdrawn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
EP14734478.2A
Other languages
German (de)
French (fr)
Inventor
Bohuslav MIKULECKY
Petr Helemík
Lukás KULHAVY
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.)
Saint Gobain Adfors SAS
Original Assignee
Saint Gobain Adfors SAS
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 Saint Gobain Adfors SAS filed Critical Saint Gobain Adfors SAS
Priority to EP14734478.2A priority Critical patent/EP3017103A1/en
Publication of EP3017103A1 publication Critical patent/EP3017103A1/en
Withdrawn legal-status Critical Current

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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
    • D06M15/248—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing chlorine
    • 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
    • C03C25/1095—Coating to obtain coated fabrics
    • 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
    • C03C25/28—Macromolecular compounds or prepolymers obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C03C25/30—Polyolefins
    • 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
    • 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

Definitions

  • the present invention is drawn to a glass fiber mesh fabric for use as reinforcement in External Thermal Insulation Complex Systems.
  • the glass fiber mesh fabric is coated with an organic polymer coating based on PVDC.
  • Glass fiber mesh fabrics are currently used in External Thermal Insulation Complex Systems (ETICS) to reinforce the render coating and facilitate application thereof to the underlying thermal insulation product (foam, glass wool, etc.).
  • Such glass fiber mesh fabrics are generally coated with rubber coatings, typically SBR rubber, to provide the fabric with mechanical strength and to protect the glass fibers against the alkalinity of the render composition.
  • the background of the harmonization process lies on the Commission Decision 94/61 1 /EC implementing Article 20 of Directive 89/106/EEC on construction products in the field of fire safety.
  • the Euroclass decision includes a classification system for building products based on their reaction-to-fire performance. It additionally defines the test methods according to which construction products shall be categorized.
  • PVDC was one of the most promising candidate for such a replacement.
  • PVDC and copolymers thereof are a group of thermoplastic polymers commonly used in the packing industries. They have excellent gas and water tightness, very good mechanical performances, satisfactory fire resistance and low combustion heat. Replacing SBR with equivalent amounts of PVDC however leads to end-products having satisfactory PCS values but which are too stiff to be rolled.
  • Adding formaldehyde-based resins to the PVDC binder desirably increases the mechanical strength of the resulting coating thereby allowing reduction of the overall LOI and in particular reduction of the amount of PVDC required, which is very interesting from an economical point of view because PVDC is a rather expensive polymer.
  • the present invention is therefore drawn, in a first aspect, to a glass fiber mesh fabric coated with an organic polymer coating, said polymer coating comprising
  • PVDC poly(vinylidene chloride)
  • the above percentages should be understood to be based on the total amount of organic polymer coating. The sum of these percentages does not necessarily amount to 100 % because, as will be explained hereafter, the organic polymer coating may further comprise a plastifying polymer and other optional adjuvants commonly used in the field of polymer coatings for construction products.
  • the organic polymer coating is preferably free of substantial amounts of a mineral flame retardant.
  • the uncoated glass fiber mesh fabric of the present invention may be any open glass fiber fabric currently used for the production of SBR-coated glass fiber mesh fabrics.
  • It may be a woven or knitted fabric. Its specific weight is preferably comprised between 30 and 500 g/m 2 , more preferably between 50 and 300 g/m 2 , and most preferably between 100 and 150 g/m 2 .
  • the size of the mesh openings is preferably comprised between 1 mm 2 and 15 cm 2 .
  • the warp and weft tensile strength of the mesh fabric measured on stripes is comprised between 400 N and 10 000 N.
  • the organic polymer coating may be applied to the uncoated glass fabric without any pretreatment.
  • the total amount of organic polymer coating may be expressed as the loss-on-ignition (LOI), measured according to EN ISO 1887 of the final polymer-coated fabric.
  • LOI loss-on-ignition
  • the organic polymer coating generally comprises between 6 wt% and 20 wt%, preferably between 7 wt% and 15 wt%, and more preferably between 8 and 12 wt% of the final coated glass fiber mesh.
  • Polymers of vinylidene chloride are the main component of the organic polymer coating. This term includes homopolymers of vinylidene chloride (PVDC) and copolymers of vinylidene chloride and of at least another comonomer (PVDC-based copolymers). PVDC-based copolymers are preferred. Comonomers are preferably selected from the group consisting of methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile, unsaturated carboxylic acids, vinyl chloride.
  • PVDC-based copolymers generally comprise from 75 to 98 wt%, preferably 80 to 95 wt% of vinylidene chloride monomer units and from 2 to 25 wt%, preferably from 5 to 20 wt% of comonomer units.
  • the organic polymer coating must contain, in addition to the PVDC or PVDC-based copolymer, a thermoset formaldehyde- based resin, preferably selected from melamine-formaldehyde resin, phenol- formaldehyde resin, urea-formaldehyde resin and combinations thereof.
  • a thermoset formaldehyde- based resin preferably selected from melamine-formaldehyde resin, phenol- formaldehyde resin, urea-formaldehyde resin and combinations thereof.
  • This resin is added to the coating composition in the form of a non-cured aqueous solution of an oligomeric resin prepared by prepolymerisation of formaldehyde and phenol, melamine or urea. It is completely polymerized and cured in situ by heating.
  • the organic polymer coating preferably comprises from 0.1 to 10 wt%, more preferably from 0.5 to 8 wt%, and most preferably from 1 to 4 wt% of melamine-formaldehyde resin, phenol-formaldehyde resin, urea- formaldehyde resin or a combination thereof.
  • the Applicant has observed that replacing styrene-butadiene rubber by a PVDC based polymer coating, resulted in a stiffer final product.
  • the Applicant added a plastifying polymer to the coating composition.
  • This plastifying polymer may be any organic thermoplastic polymer that is compatible or miscible with the PVDC or PVDC-based copolymer and has a glass transition temperature (T g ) lower than 40 °C, preferably a polymer having a T g comprised between -60 °C and +20 °C.
  • Preferred plastifying polymers are selected from the group consisting of polyacrylates and polymethacrylates, styrene-butadiene copolymers, styrene-acrylate copolymers, polyvinyl acetate) and poly(ethylene vinylacetate) copolymers.
  • These plastifying polymers are added to the coating composition as a powder or aqueous polymer dispersion.
  • the organic polymer coating of the glass fiber mesh fabric preferably contains from 0.1 to 40 wt%, more preferably from 5 to 25 wt% and most preferably from 10 to 20 wt% of said plastifying polymer having a T g lower than 40 °C.
  • the present invention also provides a method for producing a coated glass fiber mesh fabric according to the present invention. This method comprises
  • PVDC poly(vinylidene chloride)
  • Impregnation is preferably carried out by immersing the mesh fabric to be coated in an aqueous coating bath comprising the components of the organic coating and then pressing the impregnated fabric between to press rolls to eliminate excess coating composition. Impregnation could also be done for example by roll coating or screen coating.
  • the PVDC or PVDC-based copolymer is preferably used as an aqueous latex composition having total solids content comprised between 30 and 70 wt%, preferably between 40 and 60 wt%.
  • the other polymer components i.e. formaldehyde-based resins and plastifying polymer are preferably added in aqueous forms (solutions or aqueous dispersions).
  • the coating bath may further comprise any useful adjuvant currently used in the field of polymer coatings such as thickeners, buffers, dyes, organic or mineral pigments, UV-absorbers, brighteners, rheology modifiers, alkali such as ammonia, fillers such as PVC or carbonates.
  • any useful adjuvant currently used in the field of polymer coatings such as thickeners, buffers, dyes, organic or mineral pigments, UV-absorbers, brighteners, rheology modifiers, alkali such as ammonia, fillers such as PVC or carbonates.
  • the resulting coated glass fiber mesh fabrics obtained by the above-described method have a gross heat of combustion (PCS) of less than 3.5 MJ/kg, preferably less than 3.0 MJ/kg (according to EN ISO 1716:2010).
  • PCS gross heat of combustion
  • the fiber mesh fabric for all examples was a standard glass fiber mesh fabric (Saint-Gobain Adfors) having a specific weight of 130 g/m 2 . This fabric was impregnated by immersion in an aqueous coating bath and then pressed between two rolls before being cured.
  • the coating baths had the following composition (% of solids)
  • the glass fiber mesh fabric coated with 7 % (LOI) of composition A had a PCS of 1 .4 MJ/kg.
  • the glass fiber mesh fabric coated with 7 % (LOI) of composition B had a PCS of 2.9 MJ/kg.
  • the glass fiber mesh fabric coated with 20 % (LOI) of composition C had a PCS of 2.4 MJ/kg but inacceptable rigidity, brakes during bending, and has poor crosspoint stability
  • the glass fiber mesh fabric coated with 10 % (LOI) of composition D had a PCS of 3.5 MJ/kg
  • composition F had a PCS of 2.8 MJ/kg but a poor crosspoint stability

Abstract

The invention is drawn to a glass fiber mesh fabric coated with an organic polymer coating having a reduced gross heat of combustion (less than 3.0 MJ/kg), said polymer coating comprising (i) from 60 wt% to 99.9 wt% of poly(vinylidene chloride) (PVDC) or a copolymer thereof; and (ii) from 0.1 wt% to 40 wt% of a formaldehyde-based resin selected from melamine-formaldehyde resins, phenol-formaldehyde resins, urea-formaldehyde resins or a combination thereof. The invention also provides a method for producing such a coated glass fiber mesh fabric.

Description

COATED GLASS FIBRE MESH FABRIC WITH REDUCED GROSS HEAT
OF COMBUSTION
The present invention is drawn to a glass fiber mesh fabric for use as reinforcement in External Thermal Insulation Complex Systems. The glass fiber mesh fabric is coated with an organic polymer coating based on PVDC.
Glass fiber mesh fabrics are currently used in External Thermal Insulation Complex Systems (ETICS) to reinforce the render coating and facilitate application thereof to the underlying thermal insulation product (foam, glass wool, etc.). Such glass fiber mesh fabrics are generally coated with rubber coatings, typically SBR rubber, to provide the fabric with mechanical strength and to protect the glass fibers against the alkalinity of the render composition.
Most of the member countries of the European Union have adopted the harmonized Euroclass system of reaction-to-fire performance of building products. The background of the harmonization process lies on the Commission Decision 94/61 1 /EC implementing Article 20 of Directive 89/106/EEC on construction products in the field of fire safety. The Euroclass decision includes a classification system for building products based on their reaction-to-fire performance. It additionally defines the test methods according to which construction products shall be categorized. To be classified in class A2 (Products of natural stone, concrete, bricks, ceramic, glass, steel and other metallic products containing small amounts of organic compounds) of the Euroclass fire rating system a glass fiber mesh fabric must have a gross heat of combustion (PCS, French acronym for Pouvoir Calorifique Superieur), measured according to EN ISO 1716:2010, of at most 3 MJ/kg.
Commonly known SBR-coated glass fiber mesh fabrics with a loss on ignition (LOI) of about 20 % have a PCS of about 7 - 8 MJ/kg and consequently do not comply with the above-mentioned European regulations.
Reducing the LOI of SBR-coated glass fiber meshes to decrease their PCS is not a satisfactory solution because it results in very poor mechanical resistance of the end products. The idea underlying the present invention was to replace the prior art SBR-based coatings by coatings having lower PCS values.
PVDC was one of the most promising candidate for such a replacement. PVDC and copolymers thereof are a group of thermoplastic polymers commonly used in the packing industries. They have excellent gas and water tightness, very good mechanical performances, satisfactory fire resistance and low combustion heat. Replacing SBR with equivalent amounts of PVDC however leads to end-products having satisfactory PCS values but which are too stiff to be rolled.
Decreasing the LOI of PVDC-coated glass fiber meshes to reduce stiffness and cost was also unsatisfactory because the mechanical properties of the resulting fabrics were low.
After extensive research the Applicant found that it was possible to improve the mechanical performances of PVDC-coated glass fiber mesh fabrics by mixing the PVDC latex with low amounts of heat-curable formaldehyde-based resins.
Adding formaldehyde-based resins to the PVDC binder desirably increases the mechanical strength of the resulting coating thereby allowing reduction of the overall LOI and in particular reduction of the amount of PVDC required, which is very interesting from an economical point of view because PVDC is a rather expensive polymer.
The present invention is therefore drawn, in a first aspect, to a glass fiber mesh fabric coated with an organic polymer coating, said polymer coating comprising
(i) from 60 wt% to 99.9 wt% of poly(vinylidene chloride) (PVDC) or a copolymer thereof;
(ii) from 0.1 wt% to 40 wt% of a formaldehyde-based resin selected from melamine-formaldehyde resins, phenol-formaldehyde resins, urea-formaldehyde resins or a combination thereof.
The above percentages should be understood to be based on the total amount of organic polymer coating. The sum of these percentages does not necessarily amount to 100 % because, as will be explained hereafter, the organic polymer coating may further comprise a plastifying polymer and other optional adjuvants commonly used in the field of polymer coatings for construction products.
The organic polymer coating is preferably free of substantial amounts of a mineral flame retardant.
The uncoated glass fiber mesh fabric of the present invention may be any open glass fiber fabric currently used for the production of SBR-coated glass fiber mesh fabrics.
It may be a woven or knitted fabric. Its specific weight is preferably comprised between 30 and 500 g/m2, more preferably between 50 and 300 g/m2, and most preferably between 100 and 150 g/m2.
The size of the mesh openings is preferably comprised between 1 mm2 and 15 cm2.
The warp and weft tensile strength of the mesh fabric measured on stripes (5 cm x 30 cm) is comprised between 400 N and 10 000 N.
The organic polymer coating may be applied to the uncoated glass fabric without any pretreatment. The total amount of organic polymer coating may be expressed as the loss-on-ignition (LOI), measured according to EN ISO 1887 of the final polymer-coated fabric. The organic polymer coating generally comprises between 6 wt% and 20 wt%, preferably between 7 wt% and 15 wt%, and more preferably between 8 and 12 wt% of the final coated glass fiber mesh.
Polymers of vinylidene chloride are the main component of the organic polymer coating. This term includes homopolymers of vinylidene chloride (PVDC) and copolymers of vinylidene chloride and of at least another comonomer (PVDC-based copolymers). PVDC-based copolymers are preferred. Comonomers are preferably selected from the group consisting of methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile, unsaturated carboxylic acids, vinyl chloride. PVDC-based copolymers generally comprise from 75 to 98 wt%, preferably 80 to 95 wt% of vinylidene chloride monomer units and from 2 to 25 wt%, preferably from 5 to 20 wt% of comonomer units.
As explained above the organic polymer coating must contain, in addition to the PVDC or PVDC-based copolymer, a thermoset formaldehyde- based resin, preferably selected from melamine-formaldehyde resin, phenol- formaldehyde resin, urea-formaldehyde resin and combinations thereof. This resin is added to the coating composition in the form of a non-cured aqueous solution of an oligomeric resin prepared by prepolymerisation of formaldehyde and phenol, melamine or urea. It is completely polymerized and cured in situ by heating.
The organic polymer coating preferably comprises from 0.1 to 10 wt%, more preferably from 0.5 to 8 wt%, and most preferably from 1 to 4 wt% of melamine-formaldehyde resin, phenol-formaldehyde resin, urea- formaldehyde resin or a combination thereof.
The Applicant has observed that replacing styrene-butadiene rubber by a PVDC based polymer coating, resulted in a stiffer final product. To reduce the stiffness of the organic polymer coating and of the final coated mesh fabric, the Applicant added a plastifying polymer to the coating composition. This plastifying polymer may be any organic thermoplastic polymer that is compatible or miscible with the PVDC or PVDC-based copolymer and has a glass transition temperature (Tg) lower than 40 °C, preferably a polymer having a Tg comprised between -60 °C and +20 °C.
Preferred plastifying polymers are selected from the group consisting of polyacrylates and polymethacrylates, styrene-butadiene copolymers, styrene-acrylate copolymers, polyvinyl acetate) and poly(ethylene vinylacetate) copolymers.
These plastifying polymers are added to the coating composition as a powder or aqueous polymer dispersion.
The organic polymer coating of the glass fiber mesh fabric preferably contains from 0.1 to 40 wt%, more preferably from 5 to 25 wt% and most preferably from 10 to 20 wt% of said plastifying polymer having a Tg lower than 40 °C. The present invention also provides a method for producing a coated glass fiber mesh fabric according to the present invention. This method comprises
(a) impregnating a woven or knitted uncoated glass fiber mesh fabric with an aqueous coating composition containing, with respect to its total solids content,
(i) from 60 wt% to 99.9 wt% of poly(vinylidene chloride) (PVDC) or a copolymer thereof; and
(ii) from 0.1 wt% to 40 wt% of at least a second polymer selected from the group consisting of melamine-formaldehyde resins, phenol- formaldehyde resins, urea formaldehyde resins or a combination thereof,
(b) drying the impregnated glass fiber mesh fabric by heating at a temperature comprised between about 100 °C and 280 °C for a period of time comprised between about 30 seconds to 20 minutes.
Impregnation is preferably carried out by immersing the mesh fabric to be coated in an aqueous coating bath comprising the components of the organic coating and then pressing the impregnated fabric between to press rolls to eliminate excess coating composition. Impregnation could also be done for example by roll coating or screen coating.
The PVDC or PVDC-based copolymer is preferably used as an aqueous latex composition having total solids content comprised between 30 and 70 wt%, preferably between 40 and 60 wt%.
The other polymer components, i.e. formaldehyde-based resins and plastifying polymer are preferably added in aqueous forms (solutions or aqueous dispersions).
The coating bath may further comprise any useful adjuvant currently used in the field of polymer coatings such as thickeners, buffers, dyes, organic or mineral pigments, UV-absorbers, brighteners, rheology modifiers, alkali such as ammonia, fillers such as PVC or carbonates.
The resulting coated glass fiber mesh fabrics obtained by the above-described method have a gross heat of combustion (PCS) of less than 3.5 MJ/kg, preferably less than 3.0 MJ/kg (according to EN ISO 1716:2010).
Examples
The fiber mesh fabric for all examples was a standard glass fiber mesh fabric (Saint-Gobain Adfors) having a specific weight of 130 g/m2. This fabric was impregnated by immersion in an aqueous coating bath and then pressed between two rolls before being cured.
The coating baths had the following composition (% of solids)
A 96.6% of an aqueous dispersion of PVDC (Diofan A063, SolVin)
3 % of a melamine-formaldehyde resin
0.1 % of aqueous ammonia
B 76.9% of an aqueous dispersion of PVDC (Diofan A063, SolVin)
3 % of a melamine-formaldehyde resin
20 % of an acrylic binder (Printofix Binder CFN) with Tg of 20°.
0.1 % of aqueous ammonia
The glass fiber mesh fabric coated with 7 % (LOI) of composition A had a PCS of 1 .4 MJ/kg.
The glass fiber mesh fabric coated with 7 % (LOI) of composition B had a PCS of 2.9 MJ/kg.
The below table shows four comparative coating compositions resulting either in products having too high PCS or in products having poor mechanical strength:
The glass fiber mesh fabric coated with 20 % (LOI) of composition C had a PCS of 2.4 MJ/kg but inacceptable rigidity, brakes during bending, and has poor crosspoint stability
The glass fiber mesh fabric coated with 10 % (LOI) of composition D had a PCS of 3.5 MJ/kg The glass fiber mesh fabric coated with 10 % (LOI) of composition E had a PCS of 6 MJ/kg
The glass fiber mesh fabric coated with 10 % (LOI) of composition F had a PCS of 2.8 MJ/kg but a poor crosspoint stability

Claims

CLAIMS 1 . A glass fiber mesh fabric coated with an organic polymer coating, said polymer coating comprising
(i) from 60 wt% to 99.9 wt% of poly(vinylidene chloride) (PVDC) or a copolymer thereof;
(ii) from 0.1 wt% to 40 wt% of a formaldehyde-based resin selected from melamine-formaldehyde resins, phenol-formaldehyde resins, urea-formaldehyde resins or a combination thereof.
2. The coated glass fiber mesh fabric according to claim 1 , wherein the organic polymer coating comprises between 6 wt% and 20 wt%, preferably between 7 wt% and 15 wt%, and more preferably between 8 and 12 wt%, measured as the loss on ignition (LOI), of the total coated glass fiber mesh.
3. The coated glass fiber mesh fabric according to claim 1 or 2, wherein the organic polymer coating comprises from 0.1 to 10 wt%, preferably from 0.5 to 8 wt%, more preferably from 1 to 4 wt%, of melamine- formaldehyde resin or phenol-formaldehyde resin or urea-formaldehyde resin or a combination thereof.
4. The coated glass fiber mesh fabric according to any of the preceding claims, wherein the PVDC-based copolymers comprise from 75 to 98 wt%, preferably 80 to 95 wt% of vinylidene chloride monomer units and from 2 to 25 wt%, preferably from 5 to 20 wt% of at least one comonomer selected from methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile, unsaturated carboxylic acids, vinyl chloride.
5. The coated glass fiber mesh fabric according to any of the preceding claims, having a gross heat of combustion (PCS) of less than
3.5 MJ/kg, preferably less than 3.0 MJ/kg (according to EN ISO 1716:2010).
6. The coated glass fiber mesh fabric according to any of the preceding claims, wherein the coating further comprises from 0.1 to 40 wt%, preferably from 5 to 30 wt% and more preferably from 10 to 20 wt% of an organic polymer having a Tg lower than 40 °C, preferably comprised between -60 °C and 20 °C.
7. The coated glass fiber mesh fabric according to claim 6, wherein the organic polymer having a Tg lower than 40 °C is selected from the group consisting of polyacrylates and polymethacrylates, styrene-butadiene copolymers, styrene-acrylate copolymers, polyvinyl acetate) and poly(ethylene vinylacetate) copolymers.
8. A method for producing a coated glass fiber mesh according to any of the preceding claims, comprising
(a) impregnating a woven or knitted uncoated glass fiber mesh fabric with an aqueous coating composition containing, with respect to its total solids content,
(i) from 60 wt% to 99.9 wt% of poly(vinylidene chloride) (PVDC) or a copolymer thereof;
(ii) from 0.1 wt% to 40 wt% of at least a second polymer selected from the group consisting of melamine-formaldehyde resins, phenol-formaldehyde resins, urea formaldehyde resins or a combination thereof,
(b) drying the impregnated glass fiber mesh fabric by heating at a temperature comprised between about 100 °C and 280 °C for a period of time comprised between about 5 seconds to 5 minutes.
9. The method according to claim 8, wherein the PVDC or PVDC copolymer is an aqueous latex composition having a solids content comprised between 30 and 70 wt%, preferably between 40 and 60 wt%.
10. The method according to claim 8 or 9, wherein the melamine- formaldehyde resin, phenol-formaldehyde resin or urea-formaldehyde resin is added as a non-cured aqueous solution of an oligomeric resin.
1 1 . The method according to any of claims 8 to 10, wherein the uncoated glass fiber mesh fabric has a weight of 30 to 500 g/m2, preferably 50 to 300 g/m2, and more preferably 100 to 150 g/m2.
EP14734478.2A 2013-07-02 2014-07-01 Coated glass fibre mesh fabric with reduced gross heat of combustion Withdrawn EP3017103A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14734478.2A EP3017103A1 (en) 2013-07-02 2014-07-01 Coated glass fibre mesh fabric with reduced gross heat of combustion

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13174630.7A EP2821536B1 (en) 2013-07-02 2013-07-02 Coated glass fibre mesh fabric with reduced gross heat of combustion
PCT/EP2014/063969 WO2015000902A1 (en) 2013-07-02 2014-07-01 Coated glass fibre mesh fabric with reduced gross heat of combustion
EP14734478.2A EP3017103A1 (en) 2013-07-02 2014-07-01 Coated glass fibre mesh fabric with reduced gross heat of combustion

Publications (1)

Publication Number Publication Date
EP3017103A1 true EP3017103A1 (en) 2016-05-11

Family

ID=48700433

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13174630.7A Active EP2821536B1 (en) 2013-07-02 2013-07-02 Coated glass fibre mesh fabric with reduced gross heat of combustion
EP14734478.2A Withdrawn EP3017103A1 (en) 2013-07-02 2014-07-01 Coated glass fibre mesh fabric with reduced gross heat of combustion

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP13174630.7A Active EP2821536B1 (en) 2013-07-02 2013-07-02 Coated glass fibre mesh fabric with reduced gross heat of combustion

Country Status (5)

Country Link
US (1) US20160168782A1 (en)
EP (2) EP2821536B1 (en)
CN (1) CN105473777B (en)
PL (1) PL2821536T3 (en)
WO (1) WO2015000902A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3184682T3 (en) 2015-12-21 2019-03-29 Saint-Gobain Adfors Tridirectional laid scrims for reinforcement purposes
CN108045003A (en) * 2017-10-31 2018-05-18 海宁市宏亮化纤有限公司 The high-strength grid cloth of light and thin type
RS63370B1 (en) 2018-10-02 2022-07-29 Saint Gobain Adfors Glass textile coated with partially soluble dextrin-containing coating

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801189A (en) * 1952-10-08 1957-07-30 Owens Corning Fiberglass Corp Glass fiber article and process of plural coated fiber and process of preparation
GB1454503A (en) * 1972-12-29 1976-11-03 Tba Industrial Products Ltd Asbestos reinforced plastics materials
US4794136A (en) * 1987-01-05 1988-12-27 Mobil Oil Corporation Primer for PVDC topcoats on OPP film
US5389716A (en) * 1992-06-26 1995-02-14 Georgia-Pacific Resins, Inc. Fire resistant cured binder for fibrous mats
US6368991B1 (en) * 1998-09-08 2002-04-09 Building Materials Investment Corporation Foamed facer and insulation boards made therefrom
US7303797B1 (en) * 1999-02-16 2007-12-04 E.I. Du Pont De Nemours And Company Gas barrier coating system for polymeric films and rigid containers
JP3881547B2 (en) * 2001-12-27 2007-02-14 株式会社クレハ Polyvinylidene chloride resin composition, stretched film, and production method thereof
US7625827B2 (en) * 2003-12-19 2009-12-01 Basf Construction Chemicals, Llc Exterior finishing system and building wall containing a corrosion-resistant enhanced thickness fabric and method of constructing same
US20060234026A1 (en) * 2005-04-18 2006-10-19 Huusken Robert W M Non-combustible high pressure laminate
CN1884753A (en) * 2006-05-30 2006-12-27 吴淑环 Use of plastic film or plastic composite film as architecture component protective film or decorative film
US20090098395A1 (en) * 2007-10-15 2009-04-16 Pang Chia Lu Barrier coating for thermoplastic films
CN101990493B (en) * 2008-01-08 2014-08-27 纳幕尔杜邦公司 Liquid water resistant and water vapor permeable garments comprising hydrophobic treated nonwoven made from nanofibers
CN101367898B (en) * 2008-08-27 2010-08-25 浙江巨化股份有限公司电化厂 PVDC copolymerization emulsion, preparation and uses thereof
RU2584200C2 (en) * 2009-08-20 2016-05-20 ДЖОРДЖИЯ-ПЭСИФИК КЕМИКАЛЗ ЭлЭлСи Modified binder to create products from glass fibre
WO2011028964A1 (en) * 2009-09-02 2011-03-10 Georgia-Pacific Chemicals Llc Dedusting agents for fiberglass products and methods for making and using same
FR2967997B1 (en) * 2010-11-26 2017-12-22 Saint-Gobain Technical Fabrics Europe FLAME RETARDANT COMPOSITION BASED ON MINERAL FIBERS, AND MATS OBTAINED.
CN103059199B (en) * 2012-12-26 2015-12-23 海南聚能功能薄膜技术开发有限公司 Special PVDC latex of poach type and its production and use

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015000902A1 *

Also Published As

Publication number Publication date
US20160168782A1 (en) 2016-06-16
EP2821536B1 (en) 2017-02-22
CN105473777B (en) 2018-03-30
CN105473777A (en) 2016-04-06
PL2821536T3 (en) 2017-08-31
WO2015000902A1 (en) 2015-01-08
EP2821536A1 (en) 2015-01-07

Similar Documents

Publication Publication Date Title
EP2464772B2 (en) Curable fiberglass binder comprising amine salt of inorganic acid
KR102479244B1 (en) Silicate Coatings for Improved Acoustic Panel Performance and Methods of Making The Same
JP5774137B2 (en) Method for producing flame retardant fiber reinforced plastic and flame retardant fiber reinforced plastic molded product produced thereby
EP2821536B1 (en) Coated glass fibre mesh fabric with reduced gross heat of combustion
CA2986429C (en) Glass mat reinforcement
CN107033428A (en) A kind of basalt fibre enhancing polyvinyl resin composite and preparation method thereof
CN105670122A (en) Vermiculite-powder-modified polypropylene wood-plastic flame-retardant foamed composite material and preparation method thereof
CN103265870A (en) Expansion type high-temperature resistant heat-insulating coating taking epoxy resin as main film-forming agent
RU2545568C2 (en) Sagging resistant fibrous base with formaldehyde-free coating
JP7162060B2 (en) Coated textiles formed from aqueous polymer dispersions
DK2835462T3 (en) CV floor covering containing nonwoven as well as nonwoven
US20140127491A1 (en) Binder for mineral and/or organic fiber mat, and products obtained
EP2963169A1 (en) Formaldehyde-free melamine carbohydrate binders for improved fire-resistant fibrous materials
US11905422B2 (en) Glass textile coated with partially soluble dextrin-containing coating
WO2015137570A1 (en) Method for manufacturing functional board by using flame-retardant mixed fiber
CN101421320B (en) Formulation for concrete
CN113637286A (en) Toughened and flame-retardant hot-melt phenolic resin, prepreg and composite material and preparation method thereof
CN108748595A (en) Environment protection pressed-fibre board and preparation method thereof
US10870776B2 (en) Curable aqueous composition
Rusnák et al. Flame resistance and mechanical properties of composites based on new advanced resin system fr4/12
CN112321175A (en) Environment-friendly curing agent composition and preparation method and application thereof
CN107458054B (en) A kind of aluminum wood composite decorating board and preparation method thereof
CN107558306B (en) Enhanced flame-retardant paperboard and manufacturing method thereof
CN115701834A (en) Halogen-free flame-retardant polypropylene material
CN115613353A (en) Preparation method of self-extinguishing flame-retardant polyester-nylon fabric

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: 20160202

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20171220

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20180501