EP1920104A1 - Verbesserte feuchtigkeitsregulierende verbundstoffe - Google Patents

Verbesserte feuchtigkeitsregulierende verbundstoffe

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Publication number
EP1920104A1
EP1920104A1 EP06792746A EP06792746A EP1920104A1 EP 1920104 A1 EP1920104 A1 EP 1920104A1 EP 06792746 A EP06792746 A EP 06792746A EP 06792746 A EP06792746 A EP 06792746A EP 1920104 A1 EP1920104 A1 EP 1920104A1
Authority
EP
European Patent Office
Prior art keywords
water
hygroscopic substance
monomer
weight
parts
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Withdrawn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
EP06792746A
Other languages
German (de)
English (en)
French (fr)
Inventor
Mirjam Herrlich-Loos
Corinna Haindl
Samantha Champ
Martin Beck
Markus Tönnessen
Michael Fastner
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of EP1920104A1 publication Critical patent/EP1920104A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • A47C21/04—Devices for ventilating, cooling or heating
    • A47C21/042—Devices for ventilating, cooling or heating for ventilating or cooling
    • A47C21/046—Devices for ventilating, cooling or heating for ventilating or cooling without active means, e.g. with openings or heat conductors
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
    • D06M11/13—Ammonium halides or halides of elements of Groups 1 or 11 of the Periodic Table
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/48—Oxides or hydroxides of chromium, molybdenum or tungsten; Chromates; Dichromates; Molybdates; Tungstates
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
    • D06M11/56—Sulfates or thiosulfates other than of elements of Groups 3 or 13 of the Periodic Table
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
    • D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/144—Alcohols; Metal alcoholates
    • D06M13/148—Polyalcohols, e.g. glycerol or glucose
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/165—Ethers
    • D06M13/17—Polyoxyalkyleneglycol ethers
    • 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
    • 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
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof

Definitions

  • the present invention relates to improved moisture controlling composites, processes for their preparation and their use for moisture control.
  • Water-absorbing polymers are, in particular, polymers of (co) polymerized hydrophilic monomers, graft (co) polymers of one or more hydrophilic monomers on a suitable graft base, crosslinked cellulose or starch ethers, crosslinked carboxymethylcellulose, partially crosslinked polyalkylene oxide or natural products swellable in aqueous liquids, such as guar derivatives.
  • Such polymers are used as aqueous solution-absorbing products for making diapers, tampons, sanitary napkins and other sanitary articles, but also as water-retaining agents in agricultural horticulture.
  • WO 01/56625, EP-A 1 178 149 and US 5,962,068 describe processes for producing water-absorbing composites in which water-absorbing polymers are polymerized onto a carrier material.
  • WO 00/64311 discloses composites wherein water-absorbing polymers have been polymerized onto a support material. The composites are used for moisture regulation in seat cushions.
  • WO 2004/067826 A1 teaches multilayer textile fabrics, in particular those of single-sided mesh-coated nonwovens, which may contain functional agents such as, for example, water-absorbing polymers.
  • JP-A 05-105705 relates to non-flowing dry center I, consisting of a support material and hygroscopic salts, wherein the hygroscopic salts are fixed by means of water-absorbing polymers on the support material.
  • German Patent Application DE 10 2005 015 536.7 describes moisture-regulating composites which comprise at least one planar support material, at least one water-soluble hygroscopic substance and at least one water-absorbing polymer grafted onto the support material in the presence of the water-soluble hygroscopic substance.
  • the known moisture-controlling composites are often relatively stiff and the contained particles of water-absorbing polymers are relatively hard. In the further processing and use of the composites, this stiffness can cause difficulties, the drapability of the composites suffers.
  • the most commonly used to avoid transpiration unpleasant effects are used - with larger amounts of liquid than is usually produced by transpiration (for example, when spilling liquid on such equipped seating o car seats) unwanted bumps whose reformation by drying takes longer than the usual drying of the moisture-regulating composites.
  • the object of the present invention has been achieved by moisture-regulating composites comprising
  • ratio of hygroscopic substance b) to polymer c) is in the range of 0.01 to 1.
  • the ratio of hygroscopic substance b) to polymer c) is preferably less than 0.8, preferably less than 0.6, more preferably less than 0.5, most preferably less than 0.4, and at least 0.05, preferably at least 0, 1, more preferably at least 0.15.
  • the support materials a) are not subject to any restriction. Preferred support materials are fabrics and / or nonwovens, as described in WO 01/56625 on page 16, line 40, to page 20, line 27, or mixed forms of fabrics and nonwovens, as disclosed, for example, in WO 2004/067826.
  • Suitable carrier materials a) are, for example, woven or nonwoven fabrics of synthetic polymeric fibers.
  • the fibers may be of any spinnable polymeric material, for example, polyolefins such as polyethylene or polypropylene, polyesters such as polyethylene terephthalate, polyamides such as Nylon® 6 or Nylon® 6,6, polyacrylates, modified celluloses such as cellulose acetate.
  • polyolefins such as polyethylene or polypropylene
  • polyesters such as polyethylene terephthalate
  • polyamides such as Nylon® 6 or Nylon® 6,6, polyacrylates
  • modified celluloses such as cellulose acetate.
  • mixtures of the above-mentioned polymeric materials can be used.
  • Fabrics are crossed-fiber products, preferably fibers crossed at right angles.
  • Nonwovens are nonwoven products made of fibers, where the cohesion is generally given by the inherent adhesion of the fibers.
  • Preferably nonwovens are mechanically consolidated, for example by needling, meshing or vortexing by means of sharp water or air jets.
  • Nonwovens can also be bonded adhesively or cohesively.
  • Adhesively consolidated nonwovens are obtainable, for example, by bonding the fibers with liquid binders or by melting binder fibers which have been added to the nonwoven during manufacture.
  • Cohesively consolidated nonwovens are, for example, by dissolving the fibers with suitable chemicals and applying pressure.
  • the support materials advantageously have a weight per unit area of from 20 to 800 g / m 2 , preferably from 50 to 600 g / m 2 , particularly preferably from 100 to 500 g / m 2 .
  • Hygroscopic substances b) are substances capable of absorbing water vapor, that is, water vapor from the air condenses on the hygroscopic substance, increasing the water content of the hygroscopic substance b).
  • Hygroscopic substances b) are, for example, inorganic salts, such as sodium chloride, lead nitrate, zinc sulfate, sodium perchlorate, chromium oxide or lithium chloride, or at least partially crystalline organic compounds, such as water-soluble polyacrylic acids.
  • Hygroscopic inorganic salts are preferred hygroscopic substances b). Most preferred is sodium chloride.
  • Particularly advantageous hygroscopic substances b) are compounds in which above a saturated aqueous solution at 20 ° C. in equilibrium a relative humidity of less than 95%, preferably less than 90%, preferably less than 85%, particularly preferably less than 80% , and of at least 40%, preferably at least 45%, preferably at least 50%, more preferably at least 55%, most preferably at least 60%.
  • the relative humidity is the quotient of partial pressure of water vapor and water vapor pressure multiplied by 100%.
  • the hygroscopic substance b) is distributed in the polymerized-on water-absorbing polymer.
  • the moisture-regulating composites of the invention can be obtained by polymerization of a monomer solution containing
  • the weight ratio of hygroscopic substance ii) to monomer i) is preferably at most, in particular less than 0.8, preferably at most, in particular less than 0.6, particularly preferably at most, in particular less than 0.5, very particularly preferably at most, in particular less than 0.4, and at least 0.05, preferably at least 0.1, more preferably at least 0.15.
  • Suitable monomers i) are, for example, ethylenically unsaturated carboxylic acids, such as acrylic acid, methacrylic acid, maleic acid, fumaric acid and itaconic acid, or derivatives thereof, such as acrylamide, methacrylamide, acrylic esters and methacrylic acid esters.
  • Particularly preferred monomers are acrylic acid and methacrylic acid. Very particular preference is given to acrylic acid.
  • the monomers i), in particular acrylic acid preferably contain up to
  • Tocopherol is understood as meaning compounds of the following formula
  • R 1 is hydrogen or methyl
  • R 2 is hydrogen or methyl
  • R 3 is hydrogen or methyl
  • R 4 is hydrogen or an acid radical having 1 to 20 carbon atoms.
  • Preferred radicals for R 4 are acetyl, ascorbyl, succinyl, nicotinyl and other physiologically acceptable carboxylic acids.
  • the carboxylic acids can be mono-, di- or tricarboxylic acids.
  • R 4 is particularly preferably hydrogen or acetyl. Especially preferred is RRR-alpha-tocopherol.
  • the monomer solution preferably contains at most 130 ppm by weight, more preferably at most 70 ppm by weight, preferably at least 10 ppm by weight, more preferably at least 30 ppm by weight, particularly preferably around 50 ppm by weight, hydroquinone hemether, in each case on acrylic acid, wherein acrylic acid salts are mathematically accounted for as acrylic acid with.
  • an acrylic acid having a corresponding content of hydroquinone half-ether can be used.
  • hygroscopic substances ii) which can be used in the process according to the invention have already been described above as hygroscopic substances b).
  • crosslinker compounds having at least two polymerisable groups which can be radically copolymerized into the polymer network
  • Suitable crosslinkers iii) are, for example, ethylene glycol dimethacrylate, diethylene glycol diacrylate, allyl methacrylate, trimethylolpropane triacrylate, triallylamine, tetraallyloxyethane, as described in EP-A 530 438.
  • Suitable crosslinkers iii) include in particular N, N'-methylenebisacrylamide and N 1 N'-methylenebismethacrylamide, esters of unsaturated mono- or polycarboxylic acids acrylate of polyols, such as diacrylate or triacrylate, for example butanediol or ethylene glycol di and also trimethylolpropane triacrylate and allyl compounds, such as allyl (meth) acrylate, triallyl cyanurate, maleic acid diallyl esters, polyallyl esters, tetraallyloxyethane, triallylamine, tetraallylethylenediamine, allyl esters of phosphoric acid and vinylphosphonic acid derivatives, as described, for example, in EP-A 343 427.
  • crosslinkers iii) are pentaerythritol di-, pentaerythritol tri- and pentaerythritol tetraallyl ethers, polyethylene glycol diallyl ether, ethylene glycol diallyl ether, glycerol di- and glycerol triallyl ethers, polyallyl ethers based on sorbitol, and ethoxylated variants thereof.
  • Useful in the process according to the invention are di (meth) acrylates of polyethylene glycols, wherein the polyethylene glycol used has a molecular weight between 300 and 1000.
  • crosslinkers iii) are di- and triacrylates of 3 to 20 times ethoxylated glycerol, 3 to 20 times ethoxylated trimethylolpropane, 3 to 20 times ethoxylated trimethylolethane, in particular di- and triacrylates of 2 to 6-fold ethoxylated glycerol or trimethylolpropane, the 3-fold propoxylated glycerol or trimethylolpropane, and the 3-fold mixed ethoxylated or propoxylated glycerol or trimethylolpropane, the 15-fold ethoxylated glycerol or trimethylolpropane, and at least 40-times ethoxylated glycerol, trimethylolpropane lethanes or trimethylolpropane.
  • Very particularly preferred crosslinkers iii) are the polyethoxylated and / or propoxylated glycerols esterified with acrylic acid or methacrylic acid to form di- or triacrylates, as described, for example, in WO 03/104301. Particularly advantageous are di- and / or triacrylates of 3- to 10-fold ethoxylated glycerol. Very particular preference is given to diacrylates or triacrylates of 1 to 5 times ethoxylated and / or propoxylated glycerol. Most preferred are the triacrylates of 3 to 5 times ethoxylated and / or propoxylated glycerin.
  • the crosslinker is added to the monomer solution in an amount of at least 6 parts by weight, preferably at least 7 parts by weight, more preferably at least 8 parts by weight, and most preferably at least 9 parts by weight based on the 100 parts by weight of monomer i).
  • the upper limit of the content of crosslinking agent in the monomer is less critical, generally a content of at most 25 parts by weight, preferably at most 20 parts by weight, and most preferably, at most 18 parts by weight is set.
  • suitable crosslinker contents are at least 10 parts by weight, at least 10.5 parts by weight, at least 11 parts by weight, at least 11.5 parts by weight, at least 12 parts by weight, at least 12.5 parts by weight. Parts, at least 13 parts by weight based on 100 parts by weight of monomer i).
  • acrylamide, methacrylamide, crotonamide, dimethylaminoethyl methacrylate, dimethylaminoethyl acrylate, dimethylaminopropyl acrylate, diethylaminopropyl acrylate, dimethylaminobutyl acrylate, dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, dimethylaminoneopentyl acrylate and dimethylaminoneopentyl methacrylate are monomers which can be copolymerized with the monomers i).
  • water-soluble polymers v) it is possible to use polyvinyl alcohol, polyvinylpyrrolidone, starch, starch derivatives, polyglycols or polyacrylic acids, preferably polyvinyl alcohol and starch.
  • Hygroscopic polymers such as soluble polyacrylic acids, can be used both as hygroscopic substance ii) and as water-soluble polymer v).
  • graft polymerization catalysts for example iron salts
  • the polymers will serve as the grafting base for the polymerization and the polymerizing monomers will be grafted onto the polymers. If the use of graft polymerization catalysts is dispensed with, the polymers will survive the polymerization largely unchanged and act as a hygroscopic substance.
  • the acid groups of the preferred monomers i) are usually partially neutralized, preferably from 25 to 95 mol%, preferably from 40 to 90 mol%, particularly preferably from 50 to 80 mol%, very particularly preferably from 60 to 80 mol -%, wherein the usual neutralizing agents can be used, preferably alkali metal hydroxides, alkali metal oxides, alkali metal carbonates or alkali metal hydrogencarbonates and mixtures thereof.
  • the usual neutralizing agents can be used, preferably alkali metal hydroxides, alkali metal oxides, alkali metal carbonates or alkali metal hydrogencarbonates and mixtures thereof.
  • alkali metal salts it is also possible to use ammonium salts.
  • Sodium and potassium are particularly preferred as alkali metals, but most preferred are sodium hydroxide, sodium carbonate or sodium bicarbonate and mixtures thereof.
  • the neutralizing agent for example, sodium hydroxide with a water content well below 50 wt.% May be present as a waxy mass with a melting point above 23 ° C.
  • a dosage as general cargo or melt at elevated temperature is possible.
  • the aqueous monomer solution is applied to the carrier material, preferably sprayed on.
  • the suitable support materials have already been described above as support material a).
  • the monomer solution is polymerized on the support material and the composite is dried.
  • the polymerization is preferably induced by UV radiation and / or thermally.
  • an initiator can be used to accelerate or control the start of the polymerization reaction, in which case it is possible to use any known initiator or initiator system in the usual way.
  • the polymers c) contain at least one plasticizer, which is added to the monomer solution before the polymerization and remains in the polymer.
  • plasticizer is understood as meaning a substance which lowers the glass transition temperature of the polymer c) in the amount used
  • the plasticizer in the amount to be used lowers the glass transition temperature of the polymer by at least 2 ° C., preferably at least 4 0 C, particularly preferably by at least 6 ° C and in a particularly preferred manner at least 10 0 C from.
  • a plasticizer is added in an amount that the glass transition temperature of the polymer by at least 20 0 C, or at least 30 0 C
  • the glass transition temperature is a known property of polymers and can be measured by the method ASTM E1356-03 "Standard Test Method for Assignment of the Glass Transition Temperature by Differential Scanning Calorimetry" or the equivalent standard ISO 11357-2.
  • plasticizers are liquid at room temperature and are also solvents or dispersants for the polymer. If the polymer is produced from the monomer by UV irradiation, a plasticizer which is sufficiently stable against UV light must be chosen, which in addition does not disturb the UV-induced polymerization.
  • the plasticizer is hydrophilic and immiscible with water indefinitely.
  • Suitable plasticizers are, for example, alcohols, polyalcohols, such as glycerol and sorbitol, glycols and ether glycols, such as mono- or diethers of polyalkylene glycols, mono- or diesters of polyalkylene glycols, polyethylene glycols, polypropylene glycols, mixed polyethylene and propylene glycols, glycolates, glycerol, sorbitan esters, and citric acid. and tartaric acid esters or imidazoline-derived amphoteric surfactants.
  • preferred Plasticizers are polyalcohols such as glycerine and sorbitol, polyethylene glycol and their mixtures. Particularly preferred is glycerin.
  • hydrocarbons and hydrocarbon mixtures such as white oil, in particular medicinal white oil or liquid paraffin.
  • the plasticizer is usually added in an amount sufficient to achieve the desired glass transition temperature reduction.
  • Typical levels of plasticizer are 5 to 50 parts by weight, preferably 8 to 40 parts by weight, in particular 10 to 30 parts by weight of plasticizer, based on 100 parts by weight of monomer i).
  • the composites according to the invention are outstandingly suitable for moisture regulation, in particular in mattresses and seat cushions, for example in car seats.
  • Seat cushions or mattresses containing the composites of the present invention increase sitting comfort by controlling the relative humidity to a comfortable level and preventing excessive perspiration.
  • the composites of the invention can optimally release the absorbed moisture in phases of non-use and regenerate quickly.
  • the composites according to the invention enable a hitherto unattainable sitting or lying comfort.
  • the composites are stored for 60 minutes at a temperature of 23 0 C and a relative humidity of 50% in the climate chamber for equilibrium. Subsequently, the relative humidity is increased to 90% and the composites for 90 minutes at 30 0 C maintained (absorption phase). The relative humidity is then reduced to 40% and the sample is kept at 40 ° C. for 100 minutes (desorption phase).
  • the weight change by absorption / desorption is measured continuously and as an increase in weight, based on g applied substance (water-absorbing polymer and / or salt).
  • the reference point for weight gain is the weight after equilibration after 60 minutes.
  • a monomer solution was sprayed and cured by UV radiation for 2 minutes. It was then dried for 5 minutes at 90 ° C. in a countercurrent dryer.
  • the monomer solution contained 19599 g of a 37.5% strength by weight aqueous sodium acrylate solution (corresponding to 24.5% by weight of sodium acrylate in the entire monomer solution), 435 g of acrylic acid (8.5% by weight), 900 g of polyethylene glycol diacrylate (Diacrylate of a polyethylene glycol having an average molecular weight of 400) (3% by weight) as a crosslinker, 66 g of 2-hydroxy-1- [4- (hydroxyethoxy) phenyl] -2-methyl-1-propanone (0, 22 wt .-%) as an initiator, 1500 g of glycerol [5 wt .-%) and 7500 g of a 25 wt .-% aqueous sodium chloride solution (6.25 wt .-% NaCl).
  • the amount of monomer solution was chosen so that the loading of the polymer terephthalate non-woven with polymerized water-absorbing polymer was 160 g / m 2 .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Reinforced Plastic Materials (AREA)
  • Polymerisation Methods In General (AREA)
EP06792746A 2005-08-23 2006-08-09 Verbesserte feuchtigkeitsregulierende verbundstoffe Withdrawn EP1920104A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005039974A DE102005039974A1 (de) 2005-08-23 2005-08-23 Verbesserte feuchtigkeitsregulierende Verbundstoffe
PCT/EP2006/065169 WO2007023085A1 (de) 2005-08-23 2006-08-09 Verbesserte feuchtigkeitsregulierende verbundstoffe

Publications (1)

Publication Number Publication Date
EP1920104A1 true EP1920104A1 (de) 2008-05-14

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EP06792746A Withdrawn EP1920104A1 (de) 2005-08-23 2006-08-09 Verbesserte feuchtigkeitsregulierende verbundstoffe

Country Status (6)

Country Link
US (1) US20080214725A1 (ja)
EP (1) EP1920104A1 (ja)
JP (1) JP5145230B2 (ja)
CN (1) CN101248230B (ja)
DE (1) DE102005039974A1 (ja)
WO (1) WO2007023085A1 (ja)

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
DE102005015536A1 (de) * 2005-04-04 2006-10-05 Basf Ag Feuchtigkeitsregulierende Verbundstoffe
ITMI20072087A1 (it) * 2007-10-30 2009-04-30 Getters Spa Metodo per la produzione di un assorbitore composito per la rimozione di h2o costituito da sali igroscopici disciolti in una matrice polimerica
WO2009106496A1 (de) * 2008-02-27 2009-09-03 Basf Se Mehrschichtiges verbundmaterial, seine herstellung und verwendung
JP5818797B2 (ja) 2009-09-18 2015-11-18 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 超吸収体を備えた連続気泡フォーム
WO2011054784A1 (de) 2009-11-06 2011-05-12 Basf Se Verbesserte superabsorber enthaltende textilien
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JP5145230B2 (ja) 2013-02-13
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CN101248230B (zh) 2012-07-25
DE102005039974A1 (de) 2007-03-22
JP2009506148A (ja) 2009-02-12

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