EP3387031A1 - Procédé de préparation d'une dispersion aqueuse de polymère - Google Patents

Procédé de préparation d'une dispersion aqueuse de polymère

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Publication number
EP3387031A1
EP3387031A1 EP16801986.7A EP16801986A EP3387031A1 EP 3387031 A1 EP3387031 A1 EP 3387031A1 EP 16801986 A EP16801986 A EP 16801986A EP 3387031 A1 EP3387031 A1 EP 3387031A1
Authority
EP
European Patent Office
Prior art keywords
aqueous
monomers
polymer
polymerization
weight
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.)
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Application number
EP16801986.7A
Other languages
German (de)
English (en)
Inventor
Lucia JIMENEZ GARCIA
Carmen-Elena Cimpeanu
Marcus SEIBERT
Hermann Seyffer
Dirk Lawrenz
Juergen Blaul
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BASF SE
Original Assignee
BASF SE
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Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP3387031A1 publication Critical patent/EP3387031A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/12—Polymerisation in non-solvents
    • C08F2/16—Aqueous medium
    • C08F2/22—Emulsion polymerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/005—Lignin
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/24—Homopolymers or copolymers of amides or imides
    • C09J133/26—Homopolymers or copolymers of acrylamide or methacrylamide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J197/00—Adhesives based on lignin-containing materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J197/00—Adhesives based on lignin-containing materials
    • C09J197/005—Lignin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/32—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
    • C08F220/325—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals containing glycidyl radical, e.g. glycidyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/12—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives

Definitions

  • the present invention is a process for the preparation of an aqueous dispersion of a polymer P (aqueous polymer P dispersion) by free-radically initiated aqueous emulsion polymerization, which is characterized in that the polymerization of
  • Total monomer in the presence of> 25 and ⁇ 120 wt .-% of at least one lignin compound L, based on the total amount of monomers, takes place, and
  • the monomers B no ethylenically unsaturated C3 to C6 monocarboxylic and / or C 4 - to comprise C6-dicarboxylic acids and their salts and anhydrides or monoethylenically unsaturated compounds having at least one silicon-containing group, a hydroxyalkyl group or a carbonyl group.
  • the present invention furthermore relates to the aqueous polymer P dispersions themselves obtainable by the process according to the invention, their use in processes for the production of moldings and the moldings themselves.
  • aqueous binders for the production of fiber webs, in particular glass fiber webs, known.
  • the binders contain a polycarboxylic acid having at least two carboxylic acid groups and optionally also anhydride groups and a polyol. These binders require a phosphorus-containing reaction accelerator to achieve sufficient strengths of the glass fiber webs. It should be noted that the presence of such
  • Reaction accelerator can be dispensed only when a reactive polyol is used.
  • highly reactive polyols ⁇ -hydroxyalkylamides are mentioned.
  • EP-A-651088 describes corresponding binders for cellulose fiber substrates. These binders necessarily contain a phosphorus-containing reaction accelerator.
  • EP-A-672920 describes formaldehyde-free binding, impregnating or coating compositions which comprise a polymer which is composed of 2 to 100% by weight of an ethylenically unsaturated acid or an acid anhydride as comonomer and comprises at least one polyol.
  • the polyols are substituted triazine, triazinetrione, benzene or cyclohexyl derivatives, the polyol radicals always being in the 1, 3,5-position of the mentioned rings.
  • DE-A-2214450 describes a copolymer which is composed of 80 to 99% by weight of ethylene and 1 to 20% by weight of maleic anhydride.
  • the copolymer is used, together with a crosslinking agent, in powder form or in dispersion in an aqueous medium for surface coating.
  • a crosslinking agent an amino group-containing polyhydric alcohol is used.
  • it must be heated up to 300 ° C.
  • thermosetting, heat-resistant binder Use of a thermosetting, heat-resistant binder known.
  • the binder is free from formaldehyde and is obtained by mixing a
  • the crosslinker is a ⁇ -hydroxyalkylamide or a polymer or copolymer thereof.
  • the polymer which can be crosslinked with the ⁇ -hydroxyalkylamide is, for example, composed of unsaturated mono- or dicarboxylic acids, salts unsaturated mono- or dicarboxylic acids or unsaturated anhydrides.
  • Self-curing polymers are obtained by copolymerization of the ⁇ -hydroxyalkylamides with
  • Binder compositions contain a phosphorus-containing reaction accelerator.
  • a formaldehyde-free binder for the production of moldings, which in addition to an alkanolamine having at least two OH groups, a polymer 1, which ⁇ 5 wt .-% and another polymer 2, which is a 15 wt .-% of an ⁇ , ⁇ - ethylenically unsaturated mono- or dicarboxylic acid in polymerized form.
  • WO 10/34645 discloses aqueous binder systems for granular and / or fibrous substrates which contain, as active constituents, a polymer 1 containing ⁇ 5.5% by weight and 20 20% by weight of an ⁇ , ⁇ -ethylenically unsaturated mono- or
  • Dicarboxylic acid in copolymerized form a polymer 2 containing ä 40 wt .-% of an ⁇ , ⁇ -ethylenically unsaturated mono- or dicarboxylic acid in copolymerized form and a polyol compound having at least two hydroxyl groups.
  • substrates which contain a salt compound in addition to a carboxylic acid group-containing polymer and a polyol compound essential.
  • Binder liquors have an advantageous effect on the wet tensile strength and the breaking strength at 180 ° C of the bonded fiber webs.
  • EP-A 2502944 discloses aqueous binders for granular and / or fibrous substrates which contain as essential components a polymeric polycarboxylic acid, a nitrogen-free polyol compound having at least two hydroxyl groups and a hydroxy group-free organic nitrogen compound having a pKa value ⁇ 7.
  • US-A 2009/170978 discloses binder systems based on a mixture of polysaccharides, vegetable proteins or lignin derivatives with a
  • Emulsion polymer containing 5 to 40 wt .-% of an ethylenically unsaturated Contains carboxylic acid in copolymerized form.
  • the polysaccharides and plant proteins are advantageously used as non-dissolved particulate systems. details
  • EP-A 2199320 discloses binder systems based on
  • the binders may additionally contain lignin or lignin sulfonate.
  • WO 2013/120752 discloses aqueous binder compositions which in addition to a lignin compound also contain a dispersion polymer, wherein the
  • Ligning compound L are polymerized.
  • Concentration can be adjusted to a desired value or other customary additives, such as, for example, bactericidal, foaming or viscosity-modifying additives, can be added to the resulting aqueous polymer P dispersions.
  • customary additives such as, for example, bactericidal, foaming or viscosity-modifying additives
  • monomers A it is possible to use all monoethylenically unsaturated compounds having at least one epoxy group and / or one N-methylol group and / or compounds which have at least two nonconjugated ethylenically unsaturated groups.
  • monomers A which have at least one epoxy group
  • vinyloxirane, allyloxirane, glycidyl acrylate and / or glycidyl methacrylate may be mentioned, with glycidyl acrylate and / or glycidyl methacrylate being particularly preferred.
  • suitable monomers A are all monoethylenically unsaturated compounds which have at least one N-methylol group, for example N-methylolamide compounds based on ⁇ , ⁇ -monoethylenically unsaturated C3- to C6-mono- or dicarboxylic acid amides, in particular N-methylolacrylamide and N-methylolmethacrylamide.
  • the monomers A further include compounds which are at least two
  • nonconjugated ethylenically unsaturated groups such as vinyl, vinylidene or
  • alkenyl groups Particularly advantageous are the diesters of dihydric alcohols with ⁇ , ⁇ -monoethylenically unsaturated monocarboxylic acids, among which acrylic and methacrylic acid are preferred.
  • Examples of such two non-conjugated ethylenically unsaturated double bonds monomers are alkylene glycol diacrylates and dimethacrylates, such as ethylene glycol diacrylate, 1,2-propylene glycol diacrylate, 1,3-propylene glycol diacrylate, 1,3-butylene glycol diacrylate, 1,4-butylene glycol diacrylate and
  • Cyclopentadienyl acrylate, triallyl cyanurate or triallyl isocyanurate Particularly preferred are 1, 4-butylene glycol diacrylate, allyl methacrylate and / or divinylbenzene, wherein
  • Divinylbenzene in the context of this document 1, 2-divinylbenzene, 1, 3-divinylbenzene and / or 1, 4-divinylbenzene to be understood.
  • the monomer A is selected from the group comprising N-methylolacrylamide, N-methylolmethacrylamide, glycidyl acrylate, glycidyl methacrylate, 1, 4-butylene glycol diacrylate, allyl methacrylate and / or divinylbenzene.
  • monomers B can all differing from the monomers A ethylenically unsaturated compounds are used, wherein the monomers B, however, no ethylenically unsaturated C3 to C6 monocarboxylic and / or C 4 - to C6-dicarboxylic acids and their salts and anhydrides or monoethylenically unsaturated Compounds having at least one silicon-containing group, a hydroxyalkyl group or a carbonyl group to include.
  • the monomers B are selected in type and amount such that a polymer composed solely of these ethylenically unsaturated compounds in copolymerized form would have a glass transition temperature in the range> 0 and> 50 ° C.
  • the monomers B are selected from the group consisting of conjugated aliphatic C 4 - to Cg-dienes, esters of vinyl alcohol and a C to C10 monocarboxylic acid, Cr to Cio-alkyl acrylates, Cr to Cio-alkyl methacrylates, ethylenically unsaturated C3 bis C6-Monocarbon Aciditrile ethylenically unsaturated C 4 - to C6 Dicarbon Acid, C5 to Cio-cycloalkyl acrylates and methacrylates, C to C 10 dialkyl maleates, and C to Cio-dialkyl fumarates and vinyl aromatic monomers.
  • C 1 - to C 10 -alkyl groups are understood as meaning linear or branched alkyl radicals having 1 to 10 carbon atoms, for example methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert. Butyl, n-pentyl, iso-pentyl, tert-pentyl n-hexyl, 2-ethylhexyl, n-nonyl or n-decyl be understood.
  • C 5 - to C 10 -cycloalkyl groups are preferably to be understood as meaning cyclopentyl or cyclohexyl groups
  • Examples of monomers B are, in particular, 1,3-butadiene, isoprene, vinyl acetate,
  • Methacrylonitrile, malononitrile and / or fumaronitrile Methacrylonitrile, malononitrile and / or fumaronitrile.
  • the monomers B are advantageously selected from the group comprising 2-ethylhexyl acrylate, n-butyl acrylate, acrylonitrile, 1,4-butadiene, ethyl acrylate, vinyl acetate,
  • Methyl methacrylate, styrene and / or tert-butyl methacrylate Methyl methacrylate, styrene and / or tert-butyl methacrylate.
  • the monomers B are selected in type and amount such that one of these ethylenically unsaturated monomers in
  • copolymerized form polymer would have a glass transition temperature in the range ä 0 and -i 50 ° C and preferably> 5 and ⁇ 30 ° C.
  • glass transition temperature Tg in the context of this document the limit value of the glass transition temperature is meant, to which these according to G. Kanig (colloid journal &
  • Tg is determined in the context of this document by the DSC method
  • the monomers B no ethylenically unsaturated C3 to C6 monocarboxylic and / or C 4 - to comprise up to C6-dicarboxylic acids and their salts and anhydrides or monoethylenically unsaturated compounds having at least one silicon-containing group, a hydroxyalkyl group or a carbonyl , such
  • the monomers A are no silicon-containing groups, hydroxyalkyl groups or carbonyl groups and
  • Carboxyl, carboxylate or anhydride groups should have.
  • Ethyl acrylate vinyl acetate, methyl methacrylate, styrene and / or tert.
  • the monomers A are mixtures of ethylenically unsaturated compounds which have at least one epoxy group, and compounds which have at least two non-conjugated ethylenically unsaturated groups or combinations of ethylenically unsaturated
  • the total amount of monomers A and B is the total amount of monomers A and B
  • Total monomer in the aqueous reaction medium before initiation of
  • Emulsion polymerization the total amount or any remaining
  • dispersing aids which keep both the monomer droplets and the polymer particles formed dispersed in the aqueous medium and thus maintain the stability of the aqueous
  • Suitable dispersing agents are both the protective colloids commonly used to carry out free-radical aqueous emulsion polymerizations and emulsifiers.
  • Suitable protective colloids are, for example, polyvinyl alcohols, polyalkylene glycols,
  • emulsifiers mixtures of protective colloids and / or emulsifiers can be used.
  • dispersants used are exclusively emulsifiers whose relative molecular weights, in contrast to the protective colloids, are usually below 1000. They may be anionic, cationic or nonionic in nature.
  • dispersants used are exclusively emulsifiers whose relative molecular weights, in contrast to the protective colloids, are usually below 1000. They may be anionic, cationic or nonionic in nature.
  • anionic emulsifiers are compatible with each other and with nonionic emulsifiers.
  • cationic emulsifiers while anionic and cationic emulsifiers are usually incompatible with each other.
  • An overview of suitable emulsifiers can be found in Houben-Weyl, Methods of Organic Chemistry, Volume XIV / 1, Macromolecular Materials, Georg-Thieme-Verlag, Stuttgart, 1961, pages 192 to 208.
  • emulsifiers are used in particular as dispersing aids.
  • Common nonionic emulsifiers are, for example, ethoxylated mono-, di- and tri-alkylphenols (EO degree: 3 to 50, alkyl radical: C 4 to C 12) and also ethoxylated fatty alcohols (EO degree: 3 to 80, alkyl radical: Cs to C36).
  • Lutensol ® A grades C12CM- fatty alcohol ethoxylates, EO units: 3 to 8
  • Lutensol ® AO-marks C13C15- oxo alcohol ethoxylates, EO units: 3 to 30
  • Lutensol ® AT-marks CieCis- fatty alcohol ethoxylates, EO units: 1 1 to 80
  • Lutensol ® ON brands C10 oxo alcohol ethoxylates, EO units: 3 to 1: 1)
  • Lutensol ® tO brands C13 oxo alcohol ethoxylates, EO units: 3 to 20
  • Typical anionic emulsifiers are e.g. Alkali metal and ammonium salts of
  • Alkyl sulfates (alkyl radical: Cs to C12), ethoxylated of sulfuric acid monoesters of alkanols (EO degree: from 4 to 30, alkyl radical: C12 to C 8) and ethoxylated alkylphenols (EO units: 3 to 50, alkyl radical: C4 to C12), of Alkylsulfonic acids (alkyl radical: C12 to Cie) and of
  • Alkylarylsulfonic acids (alkyl radical: C9 to Cis).
  • anionic emulsifiers further compounds of the general formula
  • R 1 and R 2 hydrogen atoms or C 4 - to C2 to 4 alkyl and simultaneously hydrogen atoms are not, and M 1 and M 2 alkali metal ions and / or ammonium ions have been found to be suitable.
  • R 1 and R 2 are preferably linear or branched alkyl radicals having 6 to 18 C atoms, in particular having 6, 12 and 16 C atoms or hydrogen, where R 1 and R 2 are not both simultaneously H and Atoms are.
  • M 1 and M 2 are preferably sodium, potassium or ammonium, with sodium being particularly preferred.
  • Particularly advantageous compounds (I) are those in which M 1 and M 2 are sodium, R 1 is a branched alkyl radical having 12 C atoms and R 2 is an H atom or R 1 . Often, technical
  • Suitable cationic emulsifiers are generally a primary, secondary, tertiary or quaternary C6- to Cis-alkyl, -alkylaryl or heterocyclic radical
  • Ammonium salts alkanolammonium salts, pyridinium salts, imidazolinium salts,
  • Examples include dodecylammonium acetate or the corresponding sulfate, the sulfates or acetates of the various 2- (N, N, N-trimethylammonium) ethylparaffinklaer, N-Cetylpyridiniumsulfat, N-Laurylpyridiniumsulfat and N-cetyl-N, N, N-trimethylammonium sulfate, N- Dodecyl-N, N, N-trimethylammonium sulfate, N-octyl-N, N, N-trimethylammonium sulfate, N, N-distearyl-N, N-dimethylammonium sulfate and the gemini surfactant ⁇ , ⁇ '-
  • anionic counterparts are as possible are low nucleophilic, such as perchlorate, sulfate, phosphate, nitrate and carboxylates, such as acetate, trifluoroacetate, trichloroacetate, propionate, oxalate, citrate, benzoate, as well as conjugated anions of organosulfonic acids, such as methylsulfonate, trifluoromethylsulfonate and para-toluenesulfonate Tetrafluoroborate, tetraphenylborate, tetrakis (pentafluorophenyl) borate, tetrakis [bis (3,5-trifluoromethyl) phenyl] borate, hexafluorophosphate, hexafluoroarsenate or
  • the emulsifiers preferably used as dispersants are advantageously in a total amount ä 0,005 and ⁇ 10 wt .-%, preferably 0.01 and ⁇ 5 wt .-%, in particular 0.1 and 3 wt .-%, each based on the total amount of monomers used.
  • the total amount of the protective colloids used as dispersing aids in addition to or instead of the emulsifiers is often> 0.1 and 40% by weight and frequently equal to 0.2 and 25% by weight, in each case based on the total amount of monomers.
  • anionic and / or nonionic emulsifiers preference is given to using anionic and / or nonionic emulsifiers and, with particular preference, anionic emulsifiers as sole dispersing aids.
  • Reaction medium before initiation of the polymerization reaction are presented.
  • the release of the free-radically initiated aqueous emulsion polymerization takes place by means of a free-radical polymerization initiator (free-radical initiator).
  • peroxides may in principle inorganic peroxides, such as hydrogen peroxide or peroxodisulfates, such as the mono- or di-Alkalimetalloder or ammonium salts of peroxodisulfuric, such as their mono- and di- sodium, potassium or ammonium salts or organic peroxides such as alkyl hydroperoxides, for example, tert. Butyl, p-menthyl or cumyl hydroperoxide, as well as dialkyl or
  • Diarylperoxide such as di-tert-butyl or di-cumyl peroxide can be used.
  • Suitable oxidizing agents for redox initiator systems are essentially the abovementioned peroxides.
  • Suitable reducing agents may be sulfur compounds having a low oxidation state, such as alkali metal sulfites, for example potassium and / or sodium sulfite, alkali hydrogen sulfites, for example potassium and / or sodium hydrogen sulfite, alkali metal bisulfites, for example potassium and / or
  • Natriummetabisulfit, Formaldehydsulfoxylate for example, potassium and / or
  • alkali salts especially potassium and / or sodium salts, aliphatic sulfinic acids and alkali metal hydrosulfides, such as potassium and / or sodium hydrosulfide, salts of polyvalent metals, such as iron (II) sulfate, iron (II) ammonium sulfate, iron (II ) phosphate, endiols, such as dihydroxymaleic acid, benzoin and / or ascorbic acid, and reducing saccharides, such as sorbose, glucose, fructose and / or dihydroxyacetone.
  • polyvalent metals such as iron (II) sulfate, iron (II) ammonium sulfate, iron (II ) phosphate
  • endiols such as dihydroxymaleic acid, benzoin and / or ascorbic acid
  • reducing saccharides such as sorbose, glucose, fructose and / or dihydroxyacetone.
  • the amount of the radical initiator used based on the total amount of monomers, 0.01 to 5 wt .-%, preferably 0.1 to 3 wt .-% and particularly preferably 0.2 to 1, 5 wt .-%.
  • the total amount of the radical initiator in the aqueous reaction medium can be initially introduced before the initiation of the polymerization reaction.
  • Initiation of the polymerization reaction is understood to mean the start of the polymerization reaction of the monomers present in the polymerization vessel after radical formation of the radical initiator.
  • the initiation of the polymerization reaction by adding radical initiator to the aqueous polymerization mixture in the polymerization vessel can be carried out under polymerization conditions.
  • a partial or total amount of the free radical initiator is added to the aqueous polymerization mixture containing the monomers present in the polymerization vessel under conditions which are not suitable for triggering a polymerization reaction, for example at low temperature, and then in the aqueous polymerization mixture Polymerization conditions are set. Under polymerization conditions are generally those temperatures and pressures to understand under which the free-radically initiated aqueous emulsion polymerization with sufficient
  • Polymerization proceeds. They are dependent, in particular, on the radical initiator used.
  • the type and amount of the radical initiator which are advantageous
  • Radical initiator has a half life ⁇ 3 hours, more preferably ⁇ 1 hour and most preferably ⁇ 30 minutes and there are always enough starting radicals are available to initiate and maintain the polymerization reaction.
  • the reaction temperature for the free-radical aqueous emulsion polymerization is the entire range from 0 to 170 ° C into consideration. In this case, temperatures of 50 to 120 ° C, preferably 60 to 1 10 ° C and particularly preferably 70 to 100 ° C are applied in the rule.
  • the free-radical aqueous emulsion polymerization may be carried out at a pressure less than or equal to 1 atm [1.013 bar (absolute), atmospheric pressure] such that the polymerization temperature may exceed 100 ° C and may be up to 170 ° C. In the presence of monomers A to F having a low boiling point, the emulsion polymerization is preferably carried out under elevated pressure.
  • the pressure may be 1, 2, 1, 5, 2, 5, 10, 15 bar (absolute) or even higher values. If the emulsion polymerization is carried out under reduced pressure, pressures of 950 mbar, often 900 mbar and often 850 mbar (absolute) are set.
  • the free-radical aqueous emulsion polymerization is advantageously carried out at 1 atm with exclusion of oxygen, in particular under an inert gas atmosphere, for example under nitrogen or argon.
  • the aqueous reaction medium can in principle also in minor amounts ( ⁇ 5 wt .-%) of water-soluble organic solvents, such as
  • Methanol, ethanol, isopropanol, butanols, pentanols, but also acetone, etc. include.
  • the inventive method is preferred in the absence of such
  • n-butyl chloride n-butyl bromide, n-butyl iodide
  • methylene chloride ethylene dichloride
  • chloroform bromoform
  • bromotrichloromethane dibromodichloromethane
  • carbon tetrachloride carbon tetrabromide
  • benzyl chloride n-butyl chloride, n-butyl bromide, n-butyl iodide, methylene chloride, ethylene dichloride, chloroform, bromoform, bromotrichloromethane, dibromodichloromethane, carbon tetrachloride, carbon tetrabromide, benzyl chloride,
  • Benzylbromid, organic thio compounds such as primary, secondary or tertiary aliphatic thiols, such as ethanethiol, n-propanethiol, 2-propanethiol, n-butanethiol,
  • unsaturated fatty acids such as oleic acid
  • dienes with non-conjugated double bonds such as divinylmethane or vinylcyclohexane or hydrocarbons with easily abstractable hydrogen atoms, such as toluene
  • hydrocarbons with easily abstractable hydrogen atoms such as toluene
  • the total amount of radical-chain-transferring compounds optionally used during the emulsion polymerization, based on the total amount of monomers, is generally ⁇ 5% by weight, often ⁇ 3% by weight and frequently ⁇ 1% by weight.
  • radical chain transferring compound is added to the aqueous reaction medium prior to the initiation of free radical polymerization.
  • a partial or total amount of the radical chain transferring compound may be aqueous
  • Reaction medium advantageously also be supplied together with the monomers A and B during the polymerization.
  • the free-radically initiated aqueous emulsion polymerization also in the presence of a polymer seed, for example in the presence of 0.01 to 3 wt .-%, often from 0.02 to 2 wt .-% and often from 0.04 to 1, 5 %
  • a polymer seed for example in the presence of 0.01 to 3 wt .-%, often from 0.02 to 2 wt .-% and often from 0.04 to 1, 5 %
  • a polymer seed is used in particular when the particle size of the polymer particles to be produced by means of a free-radically aqueous emulsion polymerization is to be specifically adjusted (see, for example, US Pat. No. 2,520,959 and US Pat. No. 3,397,165).
  • a polymer seed is used whose polymer seed particles have a narrow particle size distribution and weight-average diameters Dw ⁇ 100 nm, often> 5 nm to -50 nm and often> 15 nm to> 35 nm.
  • the determination of the weight-average particle diameter is known to the person skilled in the art and is carried out, for example, via
  • Weight-average particle diameter in this document is understood to mean the weight-average Dw50 value determined by the method of the analytical ultracentrifuge (cf., in this regard, S. E. Harding et al., Analytical
  • a narrow particle size distribution is to be understood as meaning the ratio of the weight-average particle diameter Dw50 and the number-average particle diameter DN50 [Dw50 / DN50] ⁇ 2.0, preferably ⁇ 1.5, and particularly preferably ⁇ 1, determined by the method of the analytical ultracentrifuge. 2 or ⁇ 1, 1.
  • the polymer seed is used in the form of an aqueous polymer dispersion.
  • the aforementioned quantities are based on the
  • Polymerisate solids content of the aqueous polymer seed dispersion Polymerisate solids content of the aqueous polymer seed dispersion.
  • a polymer seed is understood to mean a polymer seed, which has been prepared in a separate reaction step and whose monomeric composition is different from the polymer prepared by the free-radically initiated aqueous emulsion polymerization, but this means nothing other than that for the preparation of Fremdpolymersaat and for preparing the aqueous polymer dispersion different monomers or
  • Monomer mixtures are used with different compositions.
  • the preparation of a foreign polymer seed is familiar to the person skilled in the art and is usually carried out by initially charging a relatively small amount of monomers and a relatively large amount of emulsifiers in a reaction vessel and adding a sufficient amount of polymerization initiator at reaction temperature.
  • Particularly preferred is a polystyrene or a
  • the total amount of foreign polymer seed can be presented in the polymerization vessel. But it is also possible, only a subset of Fremdpolymersaat in
  • the aqueous polymer P dispersions obtainable by the process according to the invention usually have a polymer P solid content of> 10 and> 70 Wt .-%, often ä 20 and 65 wt .-% and often> 25 and 60 wt .-%, each based on the aqueous polymer dispersion P on.
  • the number-average particle diameter (cumulant z-average) determined by quasi-elastic light scattering (ISO Standard 13 321) is generally in the range> 10 and> 1000 nm, frequently in the range> 10 and> 700 nm and often in the range> 50 to ⁇ 250 nm.
  • lignins By lignins, the skilled person understands a group of phenolic macromolecules, which are composed of various monomer building blocks, such as in particular p-cumaryl alcohol, coniferyl alcohol and sinapyl alcohol, which are interconnected substantially via ether groups.
  • the lignins are solid biopolymers, which are incorporated into the cell walls of plants and thereby cause the lignification of a cell, the so-called lignification. Because lignin in nature over a
  • the composition and proportions of the individual building blocks are highly variable and a directed linkage according to a consistently same scheme does not exist. It is also important that the lignin
  • the lignin contains mainly of softwood
  • Coniferyl units which have a guaiacyl radical (3-methoxy-4-hydroxyphenyl radical).
  • the lignin from hardwood contains varying proportions of guaiacyl and Sinapylticianen containing a syringyl (3,5-methoxy-4-hydroxyphenyl).
  • the interfering lignin In paper and pulp production, the interfering lignin must be released from the lignocellulose and removed from the paper and pulp production process.
  • the degradation and separation of lignin from the lignocellulose is essentially by two methods, namely the sulfate process, also called Kraft process and the
  • alkaline medium in particular sodium sulfide and sodium hydroxide are used.
  • lignin compounds L Solid substance when using conifers about 55 wt .-% and when using deciduous wood about 42 wt .-% of lignosulfonate on.
  • lignin compounds L it is possible to use all lignin compounds, lignin reaction products and / or lignin degradation products which have a solubility of> 10 g, preferably> 50 g and more preferably> 100 g per 100 g at 20 ° C. and 1 atm (1, 013 bar absolute) have deionized water. According to the invention, however, such embodiments are also included, whose lignin compound L has a solubility ⁇ 10 g per 100 g of deionized water at 20 ° C and 1 atm.
  • lignin compounds L may then be present in the form of their aqueous suspension. If, according to the invention, lignin compounds L are used in the manner and amount such that they are present in aqueous suspension, it is advantageous if the particles of lignin compound L suspended in an aqueous medium have a medium molecular weight
  • Particle diameter ⁇ 5 ⁇ , preferably ⁇ 3 ⁇ and particularly preferably ⁇ 1 ⁇ have.
  • the average particle diameter is determined as in the case of the aqueous polymer P dispersions by the method of quasi-elastic light scattering (ISO standard 13 321).
  • ISO standard 13 321 quasi-elastic light scattering
  • particular preference is given to using lignin compounds L which have a solubility of> 10 g per 100 g of deionized water at 20 ° C. and 1 atm.
  • Power lignins and lignin sulfonates are advantageously used according to the invention, with linosulfonates being particularly preferred.
  • all salts of lignin sulfonic acid can be used in the invention, calcium lignin sulfonate (CAS No. 8061-52-7), sodium lignin sulfonate (CAS No. 8061-51-6), magnesium lignin sulfonate (CAS No. 8061 -54-9) and / or ammonium lignosulfonate (CAS No. 8061-53-8) are preferably used.
  • Particularly preferred are sodium and calcium lignosulfonate, with calcium lignin sulfonate being particularly preferred.
  • These compounds may, for example, commercially available under the names Borre Movement ® CA 120, Borresperse ® NA 200 or
  • lignosulfonates are used, which were obtained from softwoods.
  • the total amount of lignin compound L can be added to the aqueous polymerization medium before and / or during the emulsion polymerization of monomers A and B.
  • the total amount of lignin compound L can be added to the aqueous polymerization medium before and / or during the emulsion polymerization of monomers A and B.
  • Lignin compound L presented before the initiation of the aqueous emulsion polymerization in the aqueous polymerization and the remaining amount optionally added during the initiation of the emulsion, often together with the monomers A and B, added.
  • the aqueous polymer should also comprise P dispersions which are obtainable by the process according to the invention.
  • aqueous dispersion of the invention P-dispersions are to be included as a binder for granular and / or fibrous substrates.
  • aqueous binder compositions which contains as essential component an aqueous polymer P dispersion which is obtainable by the process according to the invention.
  • the aqueous binder composition according to the invention in addition to the aqueous polymer P dispersion and the lignin compound L, additionally contain other components known to the person skilled in the art, such as, for example, thickeners, pigment distributors, dispersants, emulsifiers, buffer substances, neutralizing agents, biocides, antifoams, Polyol compounds having at least 2 hydroxy groups and having a molecular weight ⁇ 200 g / mol, film-forming agents, organic solvents, pigments or fillers, etc. may contain.
  • other components known to the person skilled in the art such as, for example, thickeners, pigment distributors, dispersants, emulsifiers, buffer substances, neutralizing agents, biocides, antifoams, Polyol compounds having at least 2 hydroxy groups and having a molecular weight ⁇ 200 g / mol, film-forming agents, organic solvents, pigments or fillers, etc. may contain.
  • the aqueous binder composition advantageously contains ⁇ 1% by weight, in particular advantageously ⁇ 0.5% by weight, of a polyol compound having at least 2
  • Hydroxyl groups and having a molecular weight ⁇ 200 g / mol, in particular ⁇ 150 g / mol, such as ethylene glycol, 1, 2-propanediol, 1, 3-propanediol, 1, 2,3-propanetriol, 1, 2-butanediol, 1, 4-butanediol, 1, 2,3,4-butanetetrol, diethanolamine, triethanolamine, etc., based on the sum of the total amounts of polymer P and lignin compound L.
  • the present aqueous binder composition may contain defatted soy flour having a mesh size of ⁇ 43 ⁇ m in amounts, however, that are at least 20% by weight below the amounts described in EP-A 2199320, Section [0035 ] are disclosed.
  • the binder composition according to the invention does not contain any such defatted soybean flour with particular advantage.
  • Binder composition comprising an aqueous polymer P dispersion as contain essential component, are advantageously suitable for use as a binder for granular and / or fibrous substrates.
  • the abovementioned aqueous polymer P dispersions and the binder compositions containing them can therefore advantageously be used in the production of moldings from granular and / or fibrous substrates.
  • the abovementioned aqueous polymerizate P dispersions and the binder compositions containing them are suitable as binders in non-cementitious coatings, such as flexible roof coatings, for example.
  • Sealants and adhesives such as assembly adhesives, tile adhesives, contact adhesives or flooring adhesives.
  • Granular and / or fibrous substrates are familiar to the person skilled in the art. For example, these are wood chips, wood fibers, cellulose fibers, textile fibers,
  • substrate should also include the fiber webs available from fibers, such as so-called mechanically bonded, for example needled or chemically pre-bonded fiber webs with.
  • the aqueous binder composition according to the invention is particularly advantageously suitable as a formaldehyde-free or formaldehyde-reduced binder system for the abovementioned fibers and mechanically bonded or chemically pre-bonded fiber webs.
  • the process for producing a shaped body from granular and / or fibrous substrates is carried out such that an aqueous binder composition comprising, as the essential component, an aqueous polymer P dispersion is applied to the granular and / or fibrous substrate (so-called impregnation),
  • the thus treated granular and / or fibrous substrate is brought into shape and then the granular and / or fibrous substrate thus obtained is subjected to a thermal treatment step at a temperature> 1 10 ° C.
  • Impregnation of the granular and / or fibrous substrate is typically accomplished such that the aqueous binder composition is uniformly applied to the surface of the fibrous and / or granular substrate.
  • the amount of aqueous binder composition is chosen so that per 100 g of granular and / or fibrous substrate> 1 g and ⁇ 100 g, preferably> 2 g and ⁇ 50 g and particularly preferably> 5 g and ⁇ 30 g of binder (calculated as Sum of
  • the granular and / or fibrous substrate is optionally brought into the desired shape, for example by introduction into a heatable press or mold. Thereafter, the shaped impregnated granular and / or fibrous substrate is dried and cured in a manner known to those skilled in the art.
  • the drying or curing of the optionally shaped impregnated granular and / or fibrous substrate takes place in two temperature stages, wherein the drying stage at a temperature ⁇ 100 ° C, preferably> 20 ° C and ⁇ 90 ° C and particularly preferably> 40 and ⁇ 80 ° C and the curing step at a temperature> 1 10 ° C, preferably> 130 and ⁇ 150 ° C and particularly preferably> 180 ° C and ⁇ 220 ° C.
  • Curing step of the moldings in one step for example in a
  • the moldings obtainable by the process according to the invention have advantageous properties, in particular an improved dimensional stability, an improved force modulus and a reduced elongation at elevated temperature in comparison with the moldings of the prior art. Accordingly, according to the invention, the moldings obtainable by the aforementioned process are also included.
  • Binder composition therefore for the production of fiber webs on polyester and / or glass fiber base, which in turn for the production of
  • bitumen roofing membranes is familiar to the person skilled in the art and takes place in particular by applying liquefied, optionally modified bitumen to one or both sides of a polyester and / or glass fiber fleece bound with a binder composition according to the invention. Accordingly, according to the invention also includes the aforementioned bituminous roofing membranes.
  • Fatty alcohol sulfate (Disponil ® SDS 15; manufactured by BASF SE.) In front. The master mixture was heated with stirring to 70 ° C, then the same
  • Monomerzulauf the N-methylolacrylamide feed and the Initiatorenzu counselor started and dosed over 120 minutes, each with constant flow rates while maintaining the temperature.
  • the monomer feed consisted of 120.0 g styrene, 1 17.5 g n-butyl acrylate and 2.5 g 1, 4-butylene glycol diacrylate.
  • the N-methylol acrylamide feed consisted of 28.6 grams of a 35 wt% aqueous solution of N-methylolacrylamide and 9.4 grams of deionized water.
  • the first initiator feed consisted of 75.0 g of 10 wt% - aqueous tert-butyl hydroperoxide solution and the second initiator feed of 57.0 g of a 10 wt .-% aqueous solution of sodium hydroxymethylsulfinate (Rongalite ® C. Product of BASF SE). After completion of the feeds, the polymerization mixture was stirred for a further hour at 70.degree. Thereafter, 25.0 g of a 10 wt .-% - aqueous tert-butyl hydroperoxide solution were added within 30 minutes with a constant flow rate and then the polymerization mixture for 90 minutes at 70 ° C stirred.
  • aqueous polymer dispersion was cooled to 20 to 25 ° C (room temperature).
  • the polymer dispersion D1 prepared in this way had a solids content of 47.8% by weight and an LT value of 78%. A bimodal particle size distribution was measured, each with a maximum at 85 and 300 nm.
  • the solids contents were generally determined by adding a defined amount of the respective aqueous polymer dispersion (about 5 g) at 140 ° C in a drying oven to the
  • Constant weight was dried. Two separate measurements were carried out in each case. The value given in each case represents the mean value of these two measurements.
  • a measure of the particle size of the dispersed polymer particles is the LD value.
  • the particular polymer dispersion to be examined was measured in 0.1% strength by weight aqueous dilution in a cuvette with an edge length of 2.5 cm with light of wavelength 600 nm and with the corresponding permeability of deionized water under the same
  • the permeability of deionized water was assumed to be 100%. The finer the dispersion, the higher the LD value measured by the method described above.
  • the average particle size can be calculated from the measured values, cf. B. Verner, M. Bärta, B. Sedläcek, Tables of Scattering Functions for Spherical Particles, Prague, 1976, Edice Marco, Rada D-DATA, SVAZEK D-1.
  • the number average particle diameters of the polymer particles were generally determined by dynamic light scattering on a 0.005 to 0.01 weight percent aqueous solution
  • the preparation of the polymer dispersion D2 was carried out completely analogously to the preparation of the polymer dispersion D1 with the difference that 314.5 g instead of 366.9 g of 47.7 wt .-% aqueous calcium lignosulfonate solution and 101, 1 g instead of 73, 7 g of deionized water were used.
  • the polymer dispersion D1 prepared in this way had a solids content of 48.1% by weight and an LT value of 74%. A bimodal particle size distribution was measured, each with a maximum at 250 and 935 nm.
  • the preparation of the polymer dispersion D3 was completely analogous to the preparation of the polymer dispersion D1 with the difference that 209.6 g instead of 366.9 g of the 47.7 wt .-% aqueous calcium lignosulfonate solution and 156.0 g instead of 73, 7 g of deionized water were used.
  • the polymer dispersion D1 prepared in this way had a solids content of 48.4% by weight and an LT value of 63%. A bimodal particle size distribution was measured, each with a maximum at 1 10 and 360 nm.
  • the monomer feed consisted of 96.0 grams of styrene, 96.0 grams of n-butyl acrylate, 6.0 grams of glycidyl methacrylate and 2.0 grams of 1,4-butylene glycol diacrylate.
  • the first Initiatorzulauf consisted of 60.0 g of a 10 wt .-% aqueous tert-butyl hydroperoxide solution and the second initiator feed from 45.6 g of a 10 wt .-% aqueous solution of sodium hydroxymethylsulfinate (Rongalit ® C).
  • the polymer dispersion D4 prepared in this way had a solids content of 49.2% by weight and an LT value of 78%. A bimodal particle size distribution was measured, each with a maximum at 105 and 240 nm.
  • the polymer dispersion D5 was prepared completely analogously to the preparation of the polymer dispersion D4 with the difference that 251.6 g instead of 293.5 g of the 47.7% strength by weight aqueous calcium lignosulfonate solution and 58.7 g instead of 36, 8 g of deionized water were used.
  • the polymer dispersion D5 prepared in this way had a solids content of 49.7% by weight and an LT value of 72%.
  • the number average particle diameter was determined to be 265 nm.
  • the polymer dispersion D6 was prepared completely analogously to the preparation of the polymer dispersion D4, with the difference that 167.7 g instead of 293.5 g of the 47.7% by weight aqueous calcium lignosulfonate solution and 102.6 g instead of 36, 8 g of deionized water were used.
  • the polymer dispersion D6 prepared in this way had a solids content of 49.1% by weight and an LT value of 55%. A bimodal particle size distribution was measured, each with a maximum at 85 and 340 nm.
  • the preparation of the polymer dispersion D7 was carried out completely analogously to the preparation of the polymer dispersion D1 with the difference that the monomer feed of 120.0 g of styrene and 1 17.5 g of n-butyl acrylate and the N-methylolacrylamide feed from 35.7 g of a 35 wt % aqueous solution of N-methylolacrylamide and 9.4 g of deionized water.
  • the polymer dispersion D6 prepared in this way had a solids content of 48.0% by weight and an LT value of 76%. A bimodal particle size distribution was measured, each with a maximum at 95 and 235 nm.
  • Polymer dispersion D8 The polymer dispersion D8 was prepared completely analogously to the preparation of the polymer dispersion D4 with the difference that the monomer feed consisted of 96.0 g of styrene, 96.0 g of n-butyl acrylate and 8.0 g of glycidyl methacrylate.
  • the polymer dispersion D8 prepared in this way had a solids content of 49.0% by weight and an LT value of 75%. A bimodal particle size distribution was measured, each with a maximum at 90 and 300 nm.
  • the polymer dispersion D9 was prepared completely analogously to the preparation of the polymer dispersion D4 with the difference that the monomer feed consisted of 97.0 g of styrene, 97.0 g of n-butyl acrylate and 6.0 g of 1,4-butylene glycol diacrylate.
  • the polymer dispersion D9 prepared in this way had a solids content of 48.9% by weight and an LT value of 77%. A bimodal particle size distribution was measured, each with a maximum at 100 and 245 nm.
  • the preparation of the comparative dispersion V1 was carried out completely analogously to the preparation of the polymer dispersion D1 with the difference that 4.5 g of an aqueous
  • Polystyrene seed latex (solids content 33% by weight, with a weight average
  • Fatty alcohol sulfate (Disponil ® SDS 15) were used as a template.
  • the dispersion polymer coagulated about 30 minutes after the addition of 25.0 g of a 10 wt .-% - aqueous tert-butyl hydroperoxide solution.
  • the preparation of the comparative dispersion V2 was carried out completely analogously to the preparation of the polymer dispersion D4 with the difference that 3.6 g of an aqueous
  • Polystyrene seed latex (solids content 33% by weight, with a weight average
  • Fatty alcohol sulfates (Disponil ® SDS 15) were used as a template.
  • the lignosulfonate-free comparative dispersion V2 prepared in this way had a solids content of 30.4% by weight and an LT value of 63%.
  • the number average particle diameter was determined to be 155 nm
  • Comparative dispersion V3 The preparation of the comparative dispersion V3 was carried out completely analogously to the preparation of the polymer dispersion D4 with the difference that the monomer feed from 95.0 g of styrene, 95.0 g of n-butyl acrylate, 6.0 g of glycidyl methacrylate, 2.0 g of 1, 4-Butylenglykoldiacrylat and 2.0 g of acrylic acid.
  • the comparative dispersion V3 thus prepared had a solids content of 49.8% by weight and an LT value of 62%. A bimodal particle size distribution was measured, each with a maximum at 80 and 330 nm.
  • the preparation of the comparative dispersion V4 was carried out completely analogously to the preparation of the polymer dispersion D4 with the difference that the monomer feed of 98.0 g of styrene, 98.0 g of n-butyl acrylate, 2.0 g of glycidyl methacrylate and 2.0 g of 1, 4-Butylenglykoldiacrylat duration.
  • the comparative dispersion V4 prepared in this way had a solids content of 50.1% by weight and an LT value of 68%. A bimodal particle size distribution was measured, each with a maximum at 105 and 355 nm.
  • the preparation of the comparative dispersion V5 was carried out completely analogously to the preparation of the polymer dispersion V3, with the difference that 48.0 g of deionized water and 3.6 g of an aqueous polystyrene seed latex (solids content 33% by weight, having a weight-average particle diameter of 28 nm) were initially charged , the monomer feed in the form of a homogeneous aqueous emulsion consisting of 103 g deionized water, 26.7 g of a 15 wt .-% aqueous solution of a fatty alcohol sulfate (Disponil ® SDS 15), 95.0 g styrene, 95.0 g of n Butyl acrylate, 6.0 g of glycidyl methacrylate, 2.0 g of 1, 4-Butylenglykoldiacrylat and 2.0 g of acrylic acid was carried out as initiator feed 1 16.3 g of a 7 wt .-%
  • the comparative dispersion V5 thus prepared had a solids content of 50.0% by weight and an LT value of 63%.
  • the number average particle diameter was determined to be 155 nm.
  • Polyethylene terephthalate spunbonded fabric 400 cm length, 40 cm width having a basis weight of 155 g / m 2 used.
  • binder liquors were subsets of the aqueous
  • the determinations were carried out by means of a Zwick tapping machine (Model Z10) with integrated tempering chamber.
  • 50 ⁇ 210 mm strips (longitudinal direction) were longitudinally punched from the fiber webs F1 to F9 and also FV2 to FV5 and FV2-1, FV2-2, FV2-3 and clamped in the pulling device with a clamping length of 100 mm.
  • the respective test strip was tempered for 60 seconds at 180 ° C and then stretched at this temperature with a take-off speed of 150 mm / min with increasing tensile force. When a tensile force of 40 N / 5 cm was reached, the elongation of the test strips was determined in percent.
  • the shrinkage in the transverse direction at 200 ° C. was determined on the basis of DIN 18192. To this end, the fiber webs F1 to F9 and also FV2 to FV5 and FV2-1, FV2-2, FV2-3 became 100 ⁇ 340 mm strips in the longitudinal direction punched out. On the
  • Non-woven fabric strips were each a marking attached from the two narrow sides at a distance of 120 mm, with a measuring distance between the markers of 100 mm resulted. In the middle of this measuring section, the width of the nonwoven strip was controlled by measurement. Subsequently, the narrow ends were clamped in clamping rails.
  • Indicated is the change in the transverse direction in percent, based on the corresponding distances before the thermal treatment.
  • the nonwoven fabrics bonded using the binder compositions of the present invention show markedly increased tensile values at 15% elongation, lower elongation at 40 N / 5 cm tensile strength, and less lateral shrinkage.

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Abstract

Procédé de préparation d'une dispersion aqueuse d'un polymère P (dispersion aqueuse de polymère P) par polymérisation en émulsion aqueuse amorcée par voie radicalaire.
EP16801986.7A 2015-12-11 2016-11-15 Procédé de préparation d'une dispersion aqueuse de polymère Withdrawn EP3387031A1 (fr)

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JP7032402B2 (ja) 2016-12-12 2022-03-08 クラリアント・インターナシヨナル・リミテツド ある特定のレベルのバイオベース炭素を含むポリマー
EP3554644A1 (fr) 2016-12-15 2019-10-23 Clariant International Ltd Polymère hybride hydrosoluble et/ou pouvant gonfler dans l'eau
WO2018108667A1 (fr) 2016-12-15 2018-06-21 Clariant International Ltd Polymère hybride hydrosoluble et/ou gonflable dans l'eau
EP3554643A1 (fr) 2016-12-15 2019-10-23 Clariant International Ltd Polymère hybride hydrosoluble et/ou gonflable dans l'eau
CN113206252B (zh) * 2021-04-29 2022-07-26 华南理工大学 一种大豆蛋白基多功能双链交联硫正极水性粘结剂及其制备方法与应用
WO2023118655A1 (fr) * 2021-12-21 2023-06-29 Kemira Oyj Dispersion de polymère, son utilisation et utilisation de complexe lignine-glucide
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CN108368208A (zh) 2018-08-03
US20180362689A1 (en) 2018-12-20

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