WO2004046453A1 - Fibre cloth preparation comprising an aqueous solution of polyol and isocyanate - Google Patents

Fibre cloth preparation comprising an aqueous solution of polyol and isocyanate Download PDF

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Publication number
WO2004046453A1
WO2004046453A1 PCT/NL2003/000806 NL0300806W WO2004046453A1 WO 2004046453 A1 WO2004046453 A1 WO 2004046453A1 NL 0300806 W NL0300806 W NL 0300806W WO 2004046453 A1 WO2004046453 A1 WO 2004046453A1
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WO
WIPO (PCT)
Prior art keywords
fibre cloth
coating preparation
textile
polyol
fibre
Prior art date
Application number
PCT/NL2003/000806
Other languages
French (fr)
Inventor
Sebastiaan Gerhardus Antonius Kolmschot
Louis Leonard Weerkamp
Original Assignee
Schmits Beheer B.V.
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Filing date
Publication date
Application filed by Schmits Beheer B.V. filed Critical Schmits Beheer B.V.
Priority to AU2003284839A priority Critical patent/AU2003284839A1/en
Publication of WO2004046453A1 publication Critical patent/WO2004046453A1/en

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Classifications

    • 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
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/568—Reaction products of isocyanates with polyethers
    • 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
    • C03C25/326—Polyureas; Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4263—Polycondensates having carboxylic or carbonic ester groups in the main chain containing carboxylic acid groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
    • C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/80—Masked polyisocyanates
    • C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
    • C08G18/807—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with nitrogen containing compounds
    • 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
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • 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
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/572—Reaction products of isocyanates with polyesters or polyesteramides
    • 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
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes

Definitions

  • the present invention relates to a fibre cloth coating preparation comprising an aqueous solution of polyol and isocyanate, to the use of the fibre cloth coating preparation in treating a fibre cloth structure, 5 to the fibre cloth structure provided with the fibre cloth coating preparation, to a method for treating a fibre cloth structure with the fibre cloth coating preparation and to the use of the fibre cloth structure provided with the coating preparation.
  • Fibre cloth structures all woven and non-woven material consisting of fibres such as for instance textile, are usually coated in order to obtain desired properties, such as for instance to make them better resistant to outside influences, or to give a greater
  • a first aspect of the present invention relates to a fibre cloth coating preparation comprising an aqueous solution of polyol and isocyanate.
  • a fibre cloth coating preparation has the advantage that when it is applied to a fibre cloth structure such as textile or glass fibre, it has better coating properties, such as a great temperature resistance, it retains its gloss after washing and it can be readily filled with all kinds of fillers such as pigments and flame retardants.
  • Another advantage of such a fibre cloth coating preparation is that it is not film-forming, i.e. it encloses the fibres and does not form a film over the fibre cloth structure, whereby the surface is sealed and not all fibres of the fibre cloth are completely coated. The pleatability of the treated fibre cloth structure is also enhanced.
  • the reaction time for curing of the preparation applied to a fibre cloth structure is considerably shortened by making use of the fibre cloth coating preparation.
  • a polyol is preferably used which has an acid value lower than 120 mg KOH/g and an OH number which lies between 30 and 330 mg KOH/g.
  • the OH number of the polyol lies more preferably between 30 and 130, since a particularly good solubility of the polyol in water is obtained at these values. It is further recommended that the polyol has an acid value which lies between 10 and 120 mg KOH/g and that it has an OH number which lies between 80 and 130 mg KOH/g.
  • the polyol more preferably comprises an acrylate polyol, polyester polyol, polyether polyol, urethane polyol or hybrids hereof.
  • the isocyanate is a dimer or trimer, although oligomer and polymer isocyanates can also be used.
  • the isocyanate is preferably a blocked isocyanate.
  • the advantage hereof is that the isocyanate is not reactive at a low temperature, but that the isocyanate does become reactive when the temperature is increased.
  • the use of a blocked isocyanate has the further advantage of a reduced toxicity compared to a unblocked isocyanate.
  • the isocyanate is more preferably an aliphatic isocyanate, since this results in a reduced yellowing of the solution and/or the end product.
  • the isocyanate further preferably comprises diphenylmethane diisocyanate, hexane diisocyanate, such as blocked hexane diisocyanate, for instance dimethylpyrazol-blocked hexane diisocyanate, isophorone diisocyanate, methylene diisocyanate or toluene diisocyanate.
  • the ratio of OH equivalents to NCO equivalents is preferably chosen such that an excess of OH groups as well as an excess of NCO groups can be present.
  • the ratio of OH equivalents to NCO equivalents is preferably 0.5:1 to 2:1.
  • the fibre cloth coating preparation according to the present invention comprises a catalyst.
  • the fibre cloth coating preparation preferably also comprises thickener, preferably acrylate, fillers and/or pigments.
  • An embodiment which is particularly recommended is when the fibre cloth coating preparation comprises a flame retardant. This can for instance be applied in wallcovering made of woven or non-woven glass fibre, which hereby obtains improved flame-retardant properties.
  • a second aspect of the present invention relates to the use of the fibre cloth coating preparation in treating a fibre cloth structure.
  • the fibre cloth structure preferably comprises woven or non-woven glass fibre or textile. More preferably it comprises natural textile, semi-synthetic textile, synthetic textile, acryl, wool, acrylic-wool, nylon, polyester, cotton, linen or combinations thereof.
  • a third aspect of the invention relates to a fibre cloth structure which is provided with the fibre cloth coating preparation.
  • the fibre cloth structure preferably comprises glass fibre or textile provided with the fibre cloth coating preparation.
  • the textile provided with the fibre cloth coating preparation preferably comprises natural textile, semi-synthetic textile, synthetic textile, acryl, wool, acrylic-wool, nylon, polyester, cotton, linen or combinations thereof.
  • a fourth aspect of the present invention relates to a method for treating a fibre cloth structure, comprising of: i) providing a fibre cloth coating preparation, ii) applying the fibre cloth coating preparation to the fibre cloth structure; and iii) curing the fibre cloth coating preparation applied to the fibre cloth structure.
  • the fibre cloth structure preferably comprises glass fibre or textile.
  • Curing of the fibre cloth coating preparation applied to the fibre cloth structure is preferably carried out between 100 'C and 280 "C. Curing preferably comprises 30 to 300 seconds. These temperatures and curing times are however dependent on the use of a catalyst in the fibre cloth coating preparation.
  • a fifth aspect of the present invention relates to the use of the flat fibre structure provided with the fibre cloth coating preparation in wallpaper, technical textiles, geotextiles (such as for instance textiles for dike reinforcement, ground covering, anti-rooting sheet) , textile for use in vehicles, decorative textiles such as clothing, protective clothing, fire-resistant clothing, cycling clothing, sports clothing, curtain fabrics, lamp shades, ironing board covers, reflector screens, projection screens, sun screens, parasols, umbrellas, tents, sails and home textiles such as carpets, wall and ceiling coverings.
  • decorative textiles such as clothing, protective clothing, fire-resistant clothing, cycling clothing, sports clothing, curtain fabrics, lamp shades, ironing board covers, reflector screens, projection screens, sun screens, parasols, umbrellas, tents, sails and home textiles such as carpets, wall and ceiling coverings.
  • 100 g of fibre cloth coating preparation was prepared by adding about 36 g water and about 32 g aqueous dispersion of blocked isocyanate (40% solids, dimethylpyrazol-blocked hexane diisocyanate trimer, equivalent weight 338, equivalent weight calculated on the basis of solid isocyanate) to about 32 g aqueous solution of oil-free polyester polyol (65% solids, OH number 115 mg KOH/g, acid value 45 mg KOH/g, OH and acid value calculated on the basis of solid resin) and then stirring the whole to a transparent, homogeneous, viscous liquid.
  • blocked isocyanate 50% solids, dimethylpyrazol-blocked hexane diisocyanate trimer, equivalent weight 338, equivalent weight calculated on the basis of solid isocyanate
  • the PES fabric provided with the coating was subjected to a light test with Xenon-24. After 100 hours of exposure there was still no discolouration. The coated fabric was also pleated without problem up to 200 'C. No discolouration was perceptible at these temperatures .
  • This viscous mixture was arranged on PES fabric (98 g/m 2 , thickness 250 ⁇ m) by full surface coating making use of a round doctor blade, wherein this latter presses into the (tensioned) substrate (knife over air, machine used Mathis SV labcoater®) . The whole was then cured at 200 'C for 1 minute in a drying oven.
  • the PES fabric provided with the high-gloss coating was subjected to a heat test, wherein an iron (230 * C) was placed on the coated fabric for 30 minutes. After 30 minutes the colour, gloss and grip of the coating of the coated fabric had not changed.
  • Example 3 105 g water and 30 g aluminium pigment (STAPA REFLEXAL 214) were added to 100 g fibre cloth coating preparation as described in example 1, and stirred to a homogeneous whole. 6 g THICKENER G was then added and stirred until a homogeneous, viscous mixture was obtained (viscosity 30 poise) .
  • This viscous mixture was arranged on PES satin substrate (162 g/m 2 , thickness 280 ⁇ m) with a polyurethane/acrylate foam layer as base layer. Application was by full surface coating making use of a round doctor blade, wherein this latter presses into the (tensioned) substrate (knife over air, machine used Mathis SV labcoater®) .
  • the coating is first dried at 100 'C for 3 minutes, subsequently calendered at 120 "C and then hardened at 200 "C for 1 minute.
  • the PES satin substrate provided with the coating was subjected to a washing test. After three washes at 40 °C the gloss was still the same as before washing.
  • the obtained product was then folded into a concertina shape (like a pleated curtain) and pressed for about 1 minute using an iron on top of the folded concertina shape for the purpose of fixing.
  • the final product was found to possess an excellent spring elasticity.
  • This viscous mixture was arranged on glass fibre (46 g/m 2 , thickness 223 ⁇ m) by full surface coating making use of a round doctor blade, wherein this latter presses into the (tensioned) substrate (knife over air, machine used Mathis SV labcoater) .
  • the whole was then cured at 190 'C for 2 minutes in a drying oven.
  • Glass fibre structure treated with the fibre cloth coating preparation and glass fibrestructure not treated with the fibre cloth coating preparation were both subjected to a fire test. This test showed that the untreated glass fibre did burn, but the glass fibrestructure treated with the coating preparation did not burn (the B2-norm was easily met) .
  • Example 7 100 g water, 8.3 g polyester-polyether polyol and 0.4 g pigment dye (Dystar, Imperon Blue HF-R) were added while stirring to 100 g fibre cloth coating preparation as described in example 1, and stirred to a homogeneous whole. 4.3 g Thickener G was then added while stirring and stirred until a homogeneous, viscous mixture was obtained (viscosity 25 poise) .
  • This viscous mixture was arranged on PES fabric (73 g/m 2 , thickness 107 ⁇ m) by full surface coating making use of a round doctor blade, wherein this latter presses into the (tensioned) substrate (knife over air, machine used Mathis SV labcoater) . The whole was then cured at 190 'C for 2 minutes in a drying oven.
  • the PES fabric had a medium-hard coating with a dry application of 10 g/m 2 .
  • tests were performed with polyester polyol, polyether polyol and polyurethane instead of with polyester-polyether polyol. These polymers were tested in different concentrations (0-8%) .
  • the result was a variety of samples varying from a soft to a hard grip, wherein the important properties such as fibre enclosure, heat resistance and filling capability were retained.

Abstract

The invention relates to a fibre cloth coating preparation comprising an aqueous solution of polyol and isocyanate, to the use of such a fibre cloth coating preparation in treating a fibre cloth structure, and to a method for treating a fibre cloth structure, comprising of: i) providing a fibre cloth coating preparation as claimed in claims 1-13; ii) applying the fibre cloth coating preparation to the fibre cloth structure; and iii) curing the fibre cloth coating preparation applied to the fibre cloth structure.

Description

FIBER CLOTH AQUEOUS COATING COMPOSITION, ITS USE , FIBER CLOTH COATED WITH THIS COMPOSITION AND METHOD FOR TREATING THE FIBER CLOTH
The present invention relates to a fibre cloth coating preparation comprising an aqueous solution of polyol and isocyanate, to the use of the fibre cloth coating preparation in treating a fibre cloth structure, 5 to the fibre cloth structure provided with the fibre cloth coating preparation, to a method for treating a fibre cloth structure with the fibre cloth coating preparation and to the use of the fibre cloth structure provided with the coating preparation.
10 Fibre cloth structures, all woven and non-woven material consisting of fibres such as for instance textile, are usually coated in order to obtain desired properties, such as for instance to make them better resistant to outside influences, or to give a greater
15 aesthetic value. However, the coatings for fibre cloth structures such as textiles which are commercially available at the moment do not always possess the desired properties, or lose their effect or their aesthetic value in the course of time. These coatings
20 applied to fibre cloth structures discolour for instance or do not have the desired durability. The influence of light, heat or determined chemical substances can also reduce the effect or the aesthetic value of the fibre cloth structure provided with a coating. Thus, textile
25 which is provided with a glossy top layer, for instance in the form of a design or letters, will for instance lose its gloss and the design or the letters will fade or discolour after a number of washes. Nor do fibre cloth structures provided with for instance a heat- resistant coating always possess the desired temperature-resistant properties and/or durable properties. The present invention seeks to obviate these problems .
A first aspect of the present invention relates to a fibre cloth coating preparation comprising an aqueous solution of polyol and isocyanate. Such a fibre cloth coating preparation has the advantage that when it is applied to a fibre cloth structure such as textile or glass fibre, it has better coating properties, such as a great temperature resistance, it retains its gloss after washing and it can be readily filled with all kinds of fillers such as pigments and flame retardants. Another advantage of such a fibre cloth coating preparation is that it is not film-forming, i.e. it encloses the fibres and does not form a film over the fibre cloth structure, whereby the surface is sealed and not all fibres of the fibre cloth are completely coated. The pleatability of the treated fibre cloth structure is also enhanced. In addition, the reaction time for curing of the preparation applied to a fibre cloth structure is considerably shortened by making use of the fibre cloth coating preparation.
A polyol is preferably used which has an acid value lower than 120 mg KOH/g and an OH number which lies between 30 and 330 mg KOH/g. By choosing a polyol which has an acid value and an OH number between these values the solubility of the polyol in the aqueous solvent is increased, and dissolving of isocyanate in water is hereby also made possible. The OH number of the polyol lies more preferably between 30 and 130, since a particularly good solubility of the polyol in water is obtained at these values. It is further recommended that the polyol has an acid value which lies between 10 and 120 mg KOH/g and that it has an OH number which lies between 80 and 130 mg KOH/g. The polyol more preferably comprises an acrylate polyol, polyester polyol, polyether polyol, urethane polyol or hybrids hereof.
In a preferred embodiment of the present invention, the isocyanate is a dimer or trimer, although oligomer and polymer isocyanates can also be used. The isocyanate is preferably a blocked isocyanate. The advantage hereof is that the isocyanate is not reactive at a low temperature, but that the isocyanate does become reactive when the temperature is increased. The use of a blocked isocyanate has the further advantage of a reduced toxicity compared to a unblocked isocyanate. The isocyanate is more preferably an aliphatic isocyanate, since this results in a reduced yellowing of the solution and/or the end product. The isocyanate further preferably comprises diphenylmethane diisocyanate, hexane diisocyanate, such as blocked hexane diisocyanate, for instance dimethylpyrazol-blocked hexane diisocyanate, isophorone diisocyanate, methylene diisocyanate or toluene diisocyanate.
In the fibre cloth coating preparation according to the present invention the ratio of OH equivalents to NCO equivalents is preferably chosen such that an excess of OH groups as well as an excess of NCO groups can be present. The ratio of OH equivalents to NCO equivalents is preferably 0.5:1 to 2:1. It is recommended that the fibre cloth coating preparation according to the present invention comprises a catalyst. By making use of a catalyst in the fibre cloth coating preparation the temperature required in curing of the fibre cloth coating preparation, when this is applied to a fibre cloth structure such as for instance textile, can be lower, or the temperature can be higher but the treatment time shorter. The fibre cloth coating preparation preferably also comprises thickener, preferably acrylate, fillers and/or pigments. An embodiment which is particularly recommended is when the fibre cloth coating preparation comprises a flame retardant. This can for instance be applied in wallcovering made of woven or non-woven glass fibre, which hereby obtains improved flame-retardant properties.
A second aspect of the present invention relates to the use of the fibre cloth coating preparation in treating a fibre cloth structure. The fibre cloth structure preferably comprises woven or non-woven glass fibre or textile. More preferably it comprises natural textile, semi-synthetic textile, synthetic textile, acryl, wool, acrylic-wool, nylon, polyester, cotton, linen or combinations thereof.
A third aspect of the invention relates to a fibre cloth structure which is provided with the fibre cloth coating preparation. The fibre cloth structure preferably comprises glass fibre or textile provided with the fibre cloth coating preparation. The textile provided with the fibre cloth coating preparation preferably comprises natural textile, semi-synthetic textile, synthetic textile, acryl, wool, acrylic-wool, nylon, polyester, cotton, linen or combinations thereof. A fourth aspect of the present invention relates to a method for treating a fibre cloth structure, comprising of: i) providing a fibre cloth coating preparation, ii) applying the fibre cloth coating preparation to the fibre cloth structure; and iii) curing the fibre cloth coating preparation applied to the fibre cloth structure. The fibre cloth structure preferably comprises glass fibre or textile. More preferably it comprises natural textile, semi-synthetic textile, synthetic textile, acrylic, wool, acrylic-wool, nylon, polyester, cotton, linen or combinations thereof. Curing of the fibre cloth coating preparation applied to the fibre cloth structure is preferably carried out between 100 'C and 280 "C. Curing preferably comprises 30 to 300 seconds. These temperatures and curing times are however dependent on the use of a catalyst in the fibre cloth coating preparation.
A fifth aspect of the present invention relates to the use of the flat fibre structure provided with the fibre cloth coating preparation in wallpaper, technical textiles, geotextiles (such as for instance textiles for dike reinforcement, ground covering, anti-rooting sheet) , textile for use in vehicles, decorative textiles such as clothing, protective clothing, fire-resistant clothing, cycling clothing, sports clothing, curtain fabrics, lamp shades, ironing board covers, reflector screens, projection screens, sun screens, parasols, umbrellas, tents, sails and home textiles such as carpets, wall and ceiling coverings.
The examples described below are only for the purpose of illustration and are in no way intended to limit the invention.
Example 1
100 g of fibre cloth coating preparation was prepared by adding about 36 g water and about 32 g aqueous dispersion of blocked isocyanate (40% solids, dimethylpyrazol-blocked hexane diisocyanate trimer, equivalent weight 338, equivalent weight calculated on the basis of solid isocyanate) to about 32 g aqueous solution of oil-free polyester polyol (65% solids, OH number 115 mg KOH/g, acid value 45 mg KOH/g, OH and acid value calculated on the basis of solid resin) and then stirring the whole to a transparent, homogeneous, viscous liquid.
105 g water, 16 g of a gloss pigment (Satin White 9130 F®) and 0.15 g black pigment dye (Imperon Black®) were added to 100 g fibre cloth coating preparation, as described above, and stirred to a homogeneous whole. 6 g THICKENER G was then added and stirred until a homogeneous, viscous mixture was obtained (viscosity 30 poise) . This viscous mixture was arranged on PES fabric (66 g/m2, thickness 98 μm) by full surface coating making use of a sharp doctor blade, wherein this latter presses into the (tensioned) PES fabric (knife over air, machine used Stork CL IV labcoater®) . The whole was then cured at 200 'C for 1 minute in a drying oven.
The PES fabric provided with the coating was subjected to a light test with Xenon-24. After 100 hours of exposure there was still no discolouration. The coated fabric was also pleated without problem up to 200 'C. No discolouration was perceptible at these temperatures .
Example 2
105 g water and 14 g aluminium pigment (STAPA REFLEXAL 214) were added to 100 g fibre cloth coating preparation as described in example 1, and stirred to a homogeneous whole. 6 g THICKENER G was then added and stirred until a homogeneous, viscous mixture was obtained (viscosity 30 poise) .
This viscous mixture was arranged on PES fabric (98 g/m2, thickness 250 μm) by full surface coating making use of a round doctor blade, wherein this latter presses into the (tensioned) substrate (knife over air, machine used Mathis SV labcoater®) . The whole was then cured at 200 'C for 1 minute in a drying oven. The PES fabric provided with the high-gloss coating was subjected to a heat test, wherein an iron (230 *C) was placed on the coated fabric for 30 minutes. After 30 minutes the colour, gloss and grip of the coating of the coated fabric had not changed.
Example 3 105 g water and 30 g aluminium pigment (STAPA REFLEXAL 214) were added to 100 g fibre cloth coating preparation as described in example 1, and stirred to a homogeneous whole. 6 g THICKENER G was then added and stirred until a homogeneous, viscous mixture was obtained (viscosity 30 poise) .
This viscous mixture was arranged on PES satin substrate (162 g/m2, thickness 280 μm) with a polyurethane/acrylate foam layer as base layer. Application was by full surface coating making use of a round doctor blade, wherein this latter presses into the (tensioned) substrate (knife over air, machine used Mathis SV labcoater®) .
In order to create extra gloss the coating is first dried at 100 'C for 3 minutes, subsequently calendered at 120 "C and then hardened at 200 "C for 1 minute. The PES satin substrate provided with the coating was subjected to a washing test. After three washes at 40 °C the gloss was still the same as before washing.
Example 4
6.3 g PES fabric (63 g/m2) was impregnated with the fibre cloth coating preparation as described in Example 1. The whole was then pressed using a foulard press.
It was then cured for 1 minute at 200 *C. The obtained product was then folded into a concertina shape (like a pleated curtain) and pressed for about 1 minute using an iron on top of the folded concertina shape for the purpose of fixing. The final product was found to possess an excellent spring elasticity.
Example 5
100 g water and 100 g aluminium hydroxide as flame retardant were added while stirring to 100 grammes of fibre cloth coating preparation as described in example 1, and stirred to a homogeneous whole. Thickener G was then added while stirring, and stirred until a homogeneous, viscous mixture was obtained with a viscosity of 80 poise.
This viscous mixture was arranged on glass fibre (46 g/m2, thickness 223 μm) by full surface coating making use of a round doctor blade, wherein this latter presses into the (tensioned) substrate (knife over air, machine used Mathis SV labcoater) . The whole was then cured at 190 'C for 2 minutes in a drying oven. Glass fibre structure treated with the fibre cloth coating preparation and glass fibrestructure not treated with the fibre cloth coating preparation were both subjected to a fire test. This test showed that the untreated glass fibre did burn, but the glass fibrestructure treated with the coating preparation did not burn (the B2-norm was easily met) .
Example 6
222 g water, 6 g additive and 0.8 g of wetting agent were added to 100 g fibre cloth coating preparation as described in example 1. The coating preparation was arranged by impregnation on a fabric coated with PVC. The whole was then pressed using a foulard press (2 bar) and cured for 3 minutes at 170 "C. The above stated fabric acquired a good cloth stability with a minimal application (5%) .
Example 7 100 g water, 8.3 g polyester-polyether polyol and 0.4 g pigment dye (Dystar, Imperon Blue HF-R) were added while stirring to 100 g fibre cloth coating preparation as described in example 1, and stirred to a homogeneous whole. 4.3 g Thickener G was then added while stirring and stirred until a homogeneous, viscous mixture was obtained (viscosity 25 poise) .
This viscous mixture was arranged on PES fabric (73 g/m2, thickness 107 μm) by full surface coating making use of a round doctor blade, wherein this latter presses into the (tensioned) substrate (knife over air, machine used Mathis SV labcoater) . The whole was then cured at 190 'C for 2 minutes in a drying oven. The PES fabric had a medium-hard coating with a dry application of 10 g/m2. In the same manner as described above, tests were performed with polyester polyol, polyether polyol and polyurethane instead of with polyester-polyether polyol. These polymers were tested in different concentrations (0-8%) . The result was a variety of samples varying from a soft to a hard grip, wherein the important properties such as fibre enclosure, heat resistance and filling capability were retained.

Claims

1. Fibre cloth coating preparation comprising an aqueous solution of polyol and isocyanate.
2. Fibre cloth coating preparation as claimed in claim 1, wherein the polyol has an acid value lower than 120 mg KOH/g and an OH number which lies between 30 and 330 mg KOH/g.
3. Fibre cloth coating preparation as claimed in claim 2, wherein the polyol has an OH number which lies between 30 and 130 mg KOH/g.
4. Fibre cloth coating preparation as claimed in claim 3, wherein the polyol has an acid value which lies between 10 and 120 mg KOH/g and has an OH number which lies between 80 and 130 mg KOH/g.
5. Fibre cloth coating preparation as claimed in claims 1-4, wherein the polyol comprises an acrylate polyol, polyester polyol, polyether polyol, urethane polyol or hybrids hereof.
6. Fibre cloth coating preparation as claimed in claims 1-5, wherein the isocyanate is a dimer or a trimer .
7. Fibre cloth coating preparation as claimed in claims 1-6, wherein the isocyanate is a blocked isocyanate.
8. Fibre cloth coating preparation as claimed in claims 1-7, wherein the isocyanate is an aliphatic isocyanate.
9. Fibre cloth coating preparation as claimed in claims 1-8, wherein the isocyanate comprises diphenylmethane diisocyanate, hexane diisocyanate, isophorone diisocyanate, methylene diisocyanate or toluene diisocyanate.
10. Fibre cloth coating preparation as claimed in claims 1-9, wherein the isocyanate comprises a hydrophilic modified type.
11. Fibre cloth coating preparation as claimed in claims 1-10, wherein the ratio of OH equivalents to NCO equivalents is 0.5:1 to 2:1.
12. Fibre cloth coating preparation as claimed in claims 1-11, wherein the preparation comprises a catalyst.
13. Fibre cloth coating preparation as claimed in claims 1-12, wherein the preparation comprises a flame retardant .
14. Use of the fibre cloth coating preparation as claimed in claims 1-13 in treating a fibre cloth structure.
15. Use as claimed in claim 14, wherein the fibre cloth structure comprises textile or glass fibre.
16. Use as claimed in claim 15, wherein the textile comprises natural textile, semi-synthetic textile, synthetic textile, acryl, wool, acrylic-wool, nylon, polyester, cotton, linen or combinations thereof.
17. Fibre cloth structure provided with a fibre cloth coating preparation as claimed in claims 1-13.
18. Fibre cloth structure as claimed in claim 17, wherein the fibre cloth structure comprises textile or glass fibre.
19. Fibre cloth structure as claimed in claim 18, wherein the textile comprises natural textile, semi- synthetic textile, synthetic textile, acryl, wool, acrylic-wool, nylon, polyester, cotton, linen or combinations thereof.
20. Method for treating a fibre cloth structure, comprising of: i) providing a fibre cloth coating preparation as claimed in claims 1-13, ii) applying the fibre cloth coating preparation to the fibre cloth structure; and iii) curing the fibre cloth coating preparation applied to the fibre cloth structure.
21. Method as claimed in claim 20, wherein the fibre cloth structure comprises textile or glass fibre.
22. Method as claimed in claim 21, wherein the textile comprises natural textile, semi-synthetic textile, synthetic textile, acryl, wool, acrylic-wool, nylon, polyester, cotton, linen or combinations thereof.
23. Method as claimed in claims 20-22, wherein curing is carried out between 100 'C and 280 "C.
24. Method as claimed in claims 20-23, wherein curing comprises 30 to 300 seconds.
25. Use of fibre cloth structures as claimed in claims 17-19 and/or obtained as claimed in claims 20-24 in technical textiles, geotextiles, textile for use in vehicles, decorative textiles, clothing, protective clothing, fire-resistant clothing, cycling clothing, sports clothing, curtain fabrics, lamp shades, ironing board covers, reflector screens, projection screens, sun screens, parasols, umbrellas, tents, sails and home textiles such as carpets, wall and ceiling coverings.
PCT/NL2003/000806 2002-11-15 2003-11-17 Fibre cloth preparation comprising an aqueous solution of polyol and isocyanate WO2004046453A1 (en)

Priority Applications (1)

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AU2003284839A AU2003284839A1 (en) 2002-11-15 2003-11-17 Fiber cloth aqueous coating composition, its use, fiber cloth coated with this composition and method for treating the fiber cloth

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NL1021929 2002-11-15
NL1021929A NL1021929C2 (en) 2002-11-15 2002-11-15 Textile coating composition comprising polyol, isocyanate and a solvent, use of the textile coating composition in the treatment of textiles, textile provided with the textile coating composition, method for treating textile with the textile coating composition and the use of the textile provided with the textile coating composition.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1566478A3 (en) * 2004-01-20 2006-08-23 Bayer MaterialScience LLC Geotextile/polyurethane composites based on blocked isocyanate compositions

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1619294A1 (en) * 1967-09-08 1971-06-09 Adolf Dr Schoeler Process for coating fabrics or other flat structures with polyurethane
DE1964064A1 (en) * 1969-12-22 1971-06-24 Continental Gummi Werke Ag Microporous water vapour permeable sur- - face structures
FR2311885A1 (en) * 1975-05-22 1976-12-17 Wtz Baumwollind Permanent treatments of textile fabrics - using organic solns. of polyols and polyisocyanates on moist fabric
US4144027A (en) * 1972-07-07 1979-03-13 Milliken Research Corporation Product and process
US6319981B1 (en) * 1991-10-29 2001-11-20 Bayer Aktiengesellschaft Coating compounds, a process for their production and their use for the production of coatings

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1619294A1 (en) * 1967-09-08 1971-06-09 Adolf Dr Schoeler Process for coating fabrics or other flat structures with polyurethane
DE1964064A1 (en) * 1969-12-22 1971-06-24 Continental Gummi Werke Ag Microporous water vapour permeable sur- - face structures
US4144027A (en) * 1972-07-07 1979-03-13 Milliken Research Corporation Product and process
FR2311885A1 (en) * 1975-05-22 1976-12-17 Wtz Baumwollind Permanent treatments of textile fabrics - using organic solns. of polyols and polyisocyanates on moist fabric
US6319981B1 (en) * 1991-10-29 2001-11-20 Bayer Aktiengesellschaft Coating compounds, a process for their production and their use for the production of coatings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1566478A3 (en) * 2004-01-20 2006-08-23 Bayer MaterialScience LLC Geotextile/polyurethane composites based on blocked isocyanate compositions

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NL1021929C2 (en) 2004-05-18

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