EP1335951A1 - Composition de stabilisateur pour matieres plastiques organiques halogenees - Google Patents

Composition de stabilisateur pour matieres plastiques organiques halogenees

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Publication number
EP1335951A1
EP1335951A1 EP01994641A EP01994641A EP1335951A1 EP 1335951 A1 EP1335951 A1 EP 1335951A1 EP 01994641 A EP01994641 A EP 01994641A EP 01994641 A EP01994641 A EP 01994641A EP 1335951 A1 EP1335951 A1 EP 1335951A1
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EP
European Patent Office
Prior art keywords
composition according
weight
contained
parts
further component
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German (de)
English (en)
Inventor
Peter Daute
Jörg-Dieter KLAMANN
Peter Wedl
Thomas Fleder
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Reagens Deutschland GmbH
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Cognis Deutschland GmbH and Co KG
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/005—Stabilisers against oxidation, heat, light, ozone
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/315—Compounds containing carbon-to-nitrogen triple bonds

Definitions

  • the invention relates to stabilizer compositions for halogen-containing organic plastics.
  • These compositions contain cyanoacetylurea, one or more perchlorates and one or more compounds which are selected from the group of the zeolites, cationic layered lattice compounds, calcium hydroxy aluminum hydrogen phosphites and katoites.
  • Halogen-containing plastics or molding materials made from them are known to tend to decomposition or decomposition reactions when they are exposed to thermal stress or come into contact with high-energy radiation, for example ultraviolet light.
  • Metal-containing stabilizers based on Pb, Ba, Cd, Sn, Ca and Zn are mostly used to stabilize PVC during processing.
  • Urea derivatives such as e.g. Diphenylthiourea proposed for stabilizing PVC (compare: Gumbleter / Müller, "Plastic Additives", Carl Hanser Verlag 1989, p. 312). These compounds are mostly used in combination with metal-containing stabilizers, since they usually do not result in adequate long-term stabilization.
  • EP-A-768 336 describes stabilizer combinations for chlorine-containing polymers, in particular for polyvinyl chloride (PVC) containing special heterocyclic compounds, namely substituted uracil derivatives.
  • PVC polyvinyl chloride
  • these combinations must contain at least one connection selected from is from the group of perchlorate compounds, glycidyl compounds, beta-diketones or esters, dihydropyridines and polyhydropyridines, sterically hindered amines, zeolites, hydrotalcites, dawsonites, alkali and alkaline earth metal compounds, antioxidants and lubricants and organotin stabilizers.
  • EP-A-930 332 describes stabilizer combinations for chlorine-containing polymers, in particular for polyvinyl chloride (PVC) containing special heterocyclic compounds, namely substituted uracil derivatives.
  • PVC polyvinyl chloride
  • these combinations necessarily contain at least one compound that is selected from the group of katoites, calcium hydroxy aluminum hydrogen phosphites, aluminum hydroxides, lithium layered grid compounds.
  • PVC polyvinyl chloride
  • the object of the present invention was to provide new stabilizers for halogen-containing plastics.
  • These stabilizers should be distinguished by a good profile of action in the event of thermal stress and / or exposure to high-energy radiation such as UV radiation.
  • halogen-containing plastics equipped with these stabilizers should have excellent values in the area of the initial color when subjected to thermal stress.
  • the stabilizers should also have the following properties: easy incorporation into halogen-containing plastics without adversely affecting their rheological properties; good long-term stability of halogen-containing plastics, especially PVC (polyvinyl chloride).
  • the present invention relates to stabilizer compositions for halogen-containing organic plastics containing
  • radicals R and R independently of one another each have an unbranched or branched, linear or cyclic alkyl radical having 1 to 18 carbon atoms or an aryl radical having 6 to 18 carbon atoms, which is optionally replaced by one or more alkyl radicals each having 1 to 6 carbon atoms. Atoms may be substituted, in an amount of 0.01 to 0.5 parts by weight,
  • compositions do not contain zinc soaps.
  • Zinc soaps are to be understood as zinc salts of fatty acids, as is known to those skilled in the art.
  • compositions according to the invention are distinguished in particular by the fact that they are able to excellently stabilize halogen-containing organic plastics, in particular polyvinyl chloride (as also commonly abbreviated as PVC), in particular against thermal degradation.
  • halogen-containing organic plastics in particular polyvinyl chloride (as also commonly abbreviated as PVC), in particular against thermal degradation.
  • Cyanoacetylureas a) are substances known to the person skilled in the art and are characterized by the formula (A)
  • radicals R and R independently of one another each have an unbranched or branched, linear or cyclic alkyl radical having 1 to 18 carbon atoms or an aryl radical having 6 to 18 carbon atoms, which may be one or more alkyl radicals each having 1 to 6 C atoms can be substituted.
  • the radicals R and R in the formula (A) each represent a methyl group.
  • Cyanoacetylureas are used in the compositions according to the invention in an amount of 0.01 to 0.5 parts by weight, based on 100 parts by weight of halogen-containing organic plastic. Amounts of 0.1 to 0.4 parts by weight and especially about 0.3 parts by weight are particularly preferred.
  • Perchlorates b) for the purposes of the invention are metal salts and ammonium salts of perchloric acid.
  • Examples of perchlorates suitable according to the invention are those of the formula M (C10 4 ) n , where M in particular represents ammonium, Li, Na, K, Mg, Ca, Sr, Zn, Al, La or Ce.
  • the index n corresponds to the valence of the cation M 1, 2 or 3.
  • the perchlorate salts can be complexed with alcohols, for example polyols, cyclodextrins, or ether alcohols or ester alcohols, or dissolved therein.
  • the polyol partial esters are also to be counted among the ester alcohols.
  • polyhydric alcohols or polyols their dimers, trimers, oligomers and polymers, such as di-, tri-, tetra- and polyglycols, and also di-, tri- and tetrapentaerythritol or polyvinyl alcohol in various degrees of polymerization are also suitable.
  • perchlorate-alcohol complexes those skilled in the art are expressly excluded EP-B-394 547, page 3, lines 37 to 56 of known types.
  • the perchlorate salts can be used in various common dosage forms, for example as a salt or solution in water or an organic solvent as such, or applied to a support material such as PVC, calcium silicate, zeolites or hydrotalcites, or incorporated into a hydrotalcite by chemical reaction or another layered grid connection.
  • Glycerol monoethers and glycerol monothioethers are preferred as polyol partial ethers.
  • the perchlorates can be used both individually and in a mixture with one another.
  • the perchlorates are contained in the compositions according to the invention in an amount of 0.001 to 0.5, and in particular 0.01 to 0.1 parts by weight, based on 100 parts by weight of halogen-containing organic plastic. Amounts of about 0.05 part by weight are very particularly preferred.
  • the compounds c) are selected from the group of the following substance classes:
  • the zeolites cl are alkali or alkaline earth alumosilicates.
  • M is an element of the first or second main group, such as Li, Na, K, Mg, Ca, Sr or Ba;
  • Y: x is a number from 0.8 to 15, preferably from 0.8 to 1.2;
  • W is a number from 0 to 300, preferably from 0.5 to 30.
  • zeolites sodium aluminosilicates of the formulas
  • Mg, Ca, Sr or Zn atoms represent zeolites such as
  • Preferred zeolites correspond to the formulas
  • Ba or Zn atoms representable zeolites such as
  • zeolites mentioned can also be water-poor or water-free.
  • Other suitable zeolites are:
  • H 2 O zeolite MAP
  • zeolites which can be prepared by partial or complete replacement of the Na atoms by Li, K or H atoms, such as
  • Zeolite P types of the formula II are particularly preferably used, where x is a number in the range from 2 to 5 and y is a number in the range from 3.5 to 10.
  • Zeolite MAP of formula II are particularly suitable, wherein x is the number 2 and y is a number are in the range of 3.5 to 10.
  • it is zeolite Na-P, ie M stands for Na. This zeolite generally occurs in the variants Na-P-1, NaP-2 and Na-P-3, which differ in their cubic, tetragonal or orthorhombic structure (compare EP-A 768 336, pages 26 and 27 bridging paragraph).
  • Na zeolite A and Na zeolite P are very particularly preferred.
  • the cationic layer lattice compounds c2) are known compounds, the structure and preparation of which are described, for example, by W. T. Reichle in Chemtec (January 1986), pages 58-63.
  • the prototype of cationic layered lattice compounds is the mineral hydrotalcite [Mg 6 Al 2 (OH) 16 ] (C0 3 ) • 4 H 2 0.
  • Hydrotalcite is structurally derived from Bmcit [Mg (OH) 2 ].
  • Brucite crystallizes in a layer structure with the metal ions in
  • Hydrotalcites form powdery, talc-like masses with BET surfaces up to about 150 m Ig.
  • Two basic syntheses are known from the literature: One possibility of synthesis ⁇ is to treat aqueous solutions of the corresponding metal salts with lye, the hydrotalcite which forms precipitating out. Another possibility is based on water-insoluble starting compounds such as metal oxides and hydroxides. These are heterogeneous reactions that are usually carried out in an autoclave.
  • hydrotalcite is only the prototype of cationic layered compounds.
  • synthetic methods known from hydrotalcite are also generally used for the synthesis of any cationic layer compounds.
  • these synthesis methods can be generally classified as hydrothermal synthesis.
  • Hydrothermal synthesis in the narrower sense means the synthesis of minerals from highly heated - above a temperature of 100 ° C and a pressure of 1 atm - aqueous suspensions; Hydrothermal syntheses are usually carried out in pressure vessels, since the temperatures used are far above the boiling point of the water, usually even above its critical temperature (see Römpps Chemie-Lexikon, 7 1973, p. 1539)
  • Cationic layer lattice compounds c2) are understood in the context of the present invention to mean compounds of the general formula (III)
  • E is a monovalent cation from the group of the alkali metals, e is a number in the range from 0 to 2,
  • Z is a divalent metal cation, z is a number in the range from 0 to 6,
  • D is a trivalent metal cation
  • d is a number in the range from 0 to 3
  • V is a tetravalent metal cation
  • v is a number in the range from 0 to 1
  • v in the general formula (III) has the value zero.
  • E is a monovalent cation from the group of alkali metals, e is a number in the range from 0 to 2, Z is a divalent metal cation, z is a number in the range from 0 to 6, D is a trivalent metal cation, d is a number in the range from 0 to 3,
  • (A) an acid anion of the charge n-, where n is an integer from 1 to 3, and q is a number in the range from 1 to 10, with the proviso that x> a and e + 2z + 3d x + well.
  • Z is a divalent metal cation
  • z is a number in the range from 0 to 6
  • D is a trivalent metal cation
  • d is a number in the range from 0 to 3
  • V is a tetravalent metal cation
  • v is a number in the range from 0 to 1 .
  • (A) an acid anion of the charge n-, where n is an integer from 1 to 3, and q is a number in the range from 1 to 10, with the proviso that x> a and 2z + 3d + 4v x + na is.
  • Z is a divalent metal cation
  • z is a number in the range from 0 to 6
  • D is a trivalent metal cation
  • d is a number in the range from 0 to 3
  • the layer compounds according to formula (IIP **) therefore have the structure of the "classic" hydrotalcites known to the person skilled in the art with regard to the composition. Of these, those are preferred in which D aluminum, d the number 1 and z a number in the range from 1 to 5. These special hydrotalcites are characterized by the general formula (HP ***):
  • Z is a divalent metal cation, z is a number in the range from 1 to 5,
  • cationic layer compounds (III) in which Z is at least one divalent metal ion selected from the group Magnesium, calcium and zinc are available. Z preferably represents exactly one divalent metal ion from the group mentioned and in particular magnesium. Cationic layer compounds of the general formula are very particularly preferred
  • a n stands for an acid anion with the charge (n-) selected from the anion group carbonate, bicarbonate, perchlorate, acetate, nitrate, tartrate, oxalate and iodide, preferably for carbonate. If in the explanation of the above formula I If at least one divalent metal ion is mentioned, this means that different divalent metal ions can be present next to one another in the cationic layer connection.
  • the indices x, y and z and m can be whole or fractional numbers within the specified conditions of the general formula (III), in which
  • Z stands for magnesium and A n " for carbonate.
  • the CHAP compounds c3) are calcium hydroxy aluminum (hydrogen) phosphites and / or their hydrates. These compounds have the general formula (IV-a)
  • M a number in the range from 0 to 12,
  • X a number in the range from 2 to 12,
  • the CHAP compounds can be prepared, for example, by means of a process in which mixtures of calcium hydroxide and / or calcium oxide, aluminum hydroxide and sodium hydroxide or of calcium hydroxide and or calcium oxide and sodium aluminate with phosphorous acid are used in the preparation of the desired calcium aluminum hydroxy hydrogen phosphites Reacts quantities in aqueous medium and separates and wins the reaction product in a manner known per se.
  • the reaction product obtained directly from the above-described reaction can be separated from the aqueous reaction medium by known processes, preferably by filtration.
  • the separated reaction product is also worked up in a manner known per se, for example by washing the filter cake with water and drying the washed residue at temperatures of, for example, 60-130 ° C., preferably 90-120 ° C.
  • Both finely divided, active aluminum hydroxide in combination with sodium hydroxide and a sodium aluminate can be used for the reaction.
  • Calcium can be used in the form of finely divided calcium oxide or calcium hydroxide or mixtures thereof.
  • the phosphorous acid can be used in various concentrated forms.
  • the reaction temperatures are preferably between 50 and 100 ° C, more preferably between about 60 and 85 ° C. Catalysts or accelerators are not required, but they also do not interfere. In the case of the compounds, all or part of the water of crystallization can be removed by thermal treatment.
  • the dried calcium-hydroxy-aluminum-hydroxyphosphites cleave in those customary, for example, for rigid PVC Processing temperatures of 160 - 200 ° C no water, so that no disturbing blistering occurs in the molded parts.
  • the CHAP compounds can be coated in a known manner with surface-active agents.
  • the Katoite can optionally be surface modified. They have a very specific crystal lattice (so-called hydrogranate structure), which distinguishes them from other calcium-aluminum-hydroxy compounds.
  • This crystal lattice including lattice spacing is described in the article by C. Cohen-Addad et P. Ducros in Acta Cryst. (1967), 23, pages 220 to 225. Accordingly, it is a cubic crystal lattice.
  • the aluminum is surrounded octahedrally by six oxygens, each of which carries hydrogen.
  • the calcium is surrounded by 8 oxygens, which form a disturbed cube, which is also known as the triangular dodecahedron.
  • the katoites of the general formula Ca 3 Al 2 (OH) 12 can be prepared, for example, in accordance with the German patent DE 2 424 763 from the hydroxides of calcium and aluminum in appropriate stoichiometric amounts in the aqueous system. Depending on the test temperatures and reaction times, they occur with different average particle diameters.
  • the katoites are obtained with average partial cliameter diameters of 0.1 to 100 ⁇ m, preferably 0.5 to 30 ⁇ m. It can happen that as a by-product small amounts of calcium-containing hydroxyaluminates (Hydrocalumite) occur, which have a layer structure and are represented by the general formula described above.
  • the Katoite of the above formula can be surface-modified with one or more additives selected from groups v-a) optionally alkoxylated alcohols with one or more
  • Hydroxyl groups with carboxylic acids with 6 to 22 carbon atoms v-d) alkyl and aryl phosphites, v-e) homopolymers and copolymers of acrylic acid and methacrylic acid, v-f) lignin and naphthalene sulfonates and / or trimer fatty acids, v-g) salts of fatty acids.
  • Suitable additives in group va are both monofunctional alcohols and polyols with 3 to 30 carbon atoms and 2 to 6 hydroxyl groups, which may optionally be alkoxylated, preferably ethoxylated.
  • monofunctional alcohols fatty alcohols with 6 to 22 carbon atoms, such as caprin, lauryl, palmityl, stearyl, oleyl, linolyl, arachidyl and behenyl alcohol, and their technical mixtures, such as those derived from natural oils and Fats are accessible.
  • the ethoxylated representatives thereof are very particularly preferably used with 2 to 15 moles of ethylene oxide.
  • diols with 3 to 30 carbon atoms such as butanediols, hexanediols, dodecanediols, and trimethylolpropane, pentaerythritol, glycerol and their technical oligomer mixtures with average degrees of condensation are suitable from 2 to 10.
  • Very particularly preferred from the group of polyols are those with 3 to 30 C atoms which carry at least one hydroxyl group or one ether oxygen per 3 C atoms, preferably glycerol and / or the technical oligoglycerol mixtures with average degrees of condensation of 2 until 10.
  • the additives of group v-b) are partially or completely epoxidized unsaturated fatty acids or fatty alcohols with 6 to 22 carbon atoms or derivatives thereof.
  • the esters thereof are particularly suitable as derivatives of the epoxidized fatty acids or fatty alcohols, the epoxidized fatty acids and epoxidized fatty alcohols being esterified with one another or else with non-epoxidized carboxylic acids or with non-epoxidized mono- or polyhydric alcohols.
  • the epoxidized fatty acids are preferably derived from the unsaturated palmitoleic, oleic, elaidic, petroselinic, ricinoleic, linolenic, gadoleic or emcasic acids, which are fully or partially epoxidized by known processes.
  • the epoxidized fatty alcohols are preferably derived from the unsaturated alcohols oleyl, elaidyl, ricinol, linoleyl, linolenyl, gadoleyl, arachidone or eruca alcohol, which are also completely or partially epoxidized by known processes.
  • Suitable esters of epoxidized fatty acids are esters of mono-, di- and / or trihydric alcohols which are completely esterified with epoxidized, unsaturated carboxylic acids having 6 to 22 carbon atoms, such as methyl, 2-ethylhexyl, ethylene glycol, butanediol, Neopentyl glycol, glycerol and / or
  • Trimethylolpropane ester of epoxidized lauroleic acid, palmitoleic acid, oleic acid, ricinoleic acid, linoleic acid and / or linolenic acid To be favoured
  • the epoxidized carboxylic acid glycerides can also be technical mixtures such as those obtained by epoxidation of natural unsaturated fats and unsaturated oils.
  • Epoxidized beet oil, epoxidized soybean oil and epoxidized sunflower oil of new breed are preferably used.
  • the additives in group v-c) are full or partial esters which are obtained by the relevant methods of preparative organic chemistry, for example by acid-catalyzed reaction of polyols with carboxylic acids.
  • Suitable polyol components are those which have already been discussed in connection with group a).
  • Aliphatic, saturated and / or unsaturated carboxylic acids with 6 to 22 carbon atoms such as caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, ricinoleic acid, linoleic acid, linolenic acid, behenic acid or emcasic acid are preferably used as the acid component.
  • the carboxylic acid can also be a technical mixture, as is the case with the pressure splitting of natural fats and oils.
  • Partial esters of glycerol and in particular of their technical oligoglycerol mixtures with average degrees of condensation of 2 to 10 with saturated and / or unsaturated aliphatic carboxylic acids with 6 to 22 C atoms are preferred.
  • alkyl and aryl phosphites can be used, preferably those of the general formula (V)
  • R, R and R independently of one another represent an alkyl radical having 1 to 18 carbon atoms or a phenyl radical.
  • Typical examples of additives of group d) are tributyl phosphite, triphenyl phosphite, dimethylphenyl phosphite and / or dimethylstearyl phosphite. Diphenyldecylphosphite is preferred.
  • the additives from group ve) are preferably polymers of acrylic acid and methacrylic acid and their copolymers.
  • the concept of Copolymers are understood in two senses: on the one hand as pure copolymers of acrylic acid and methacrylic acid and on the other hand as copolymers of (meth) acrylic acid with other vinylically unsaturated monomers capable of polymerization.
  • Examples of other monomers capable of polymerization are sulfonic and phosphonic acid-containing unsaturated monomers, unsaturated aliphatic carboxylic acids with 3 to 5 carbon atoms, amides of unsaturated aliphatic carboxylic acids with 3 to 5 carbon atoms, amino-containing unsaturated monomers and / or their salts, vinyl acetate, Acrolein, vinyl chloride, acrylonitrile, vinylidene chloride, 1,3-butadiene, styrene, alkylstyrenes with 1 to 4 carbon atoms in the alkyl radical.
  • additives from group ve) are polyacrylic acid, polymethacrylic acid - hereinafter acrylic acid and methacrylic acid and their derivatives are abbreviated as (meth) acrylic acid or derivatives - and / or their salts such as polysodium (meth) acrylate, copolymers of (meth) acrylic acid with maleic acid, maleic anhydride, styrenesulfonic acid, methylstyrene, 2-vinylpyridine, 1-vinylimidazole, dimethylaminopropyl (meth) acrylamide, 2- (meth) acrylamido-2-methylpropanesulfonic acid, (meth) acrylamide, N-hydroxydimethyl (meth) acrylamide and / or their salts.
  • polyacrylic acid polymethacrylic acid - hereinafter acrylic acid and methacrylic acid and their derivatives are abbreviated as (meth) acrylic acid or derivatives - and / or their salts
  • polymeric additives are those which have a predominantly anionic character, that is to say which mostly carry acid groups free or in the form of their salts.
  • Polymers of (meth) acrylic acid and their copolymers with styrene, acrolein, alkylstyrenes having 1 to 4 carbon atoms in the alkyl radical, styrene sulfonic acid, maleic acid and or their salts, in particular their sodium salts and maleic anhydride are particularly preferred.
  • the polymeric additives of group e) expediently have a molecular weight of 1000 to 10000.
  • the polymeric additives can be prepared by known processes such as bulk or solvent polymerization (cf.
  • the additives of Gmppe vg) are salts of fatty acids. Suitable fatty acids have already been listed in connection with additives of group vc). The alkali metal salts of the saturated fatty acids are preferred here.
  • One or more additives from one or more of groups v-a) to v-g) can be used to modify the katoites, the total amount of additives being in the range from 0.1 to 10% by weight, based on the katoite.
  • the additives in amounts of 50 to 90% by weight, based on the total amount of additive.
  • those which are modified with one or more additives from the groups v-b), v-e) and v-g) are particularly preferred.
  • the Katoite can be modified either in situ or subsequently.
  • the katoites are ground intimately with organic or aqueous solutions of the additives, preferably with grinding media mills and in particular with a ball mill and then usually dried. If the additives are products that are liquid or have a low melting point at room temperature, there is of course no need to use any solutions. Otherwise, the preferred additives v-a) to v-g) are clear aqueous solutions or solutions with polar organic solvents.
  • polar organic solvents encompasses hydrocarbon compounds which are liquid at room temperature (15 to 25 ° C.) and carry at least one electronegative substituent than carbon. These include chlorinated hydrocarbons, alcohols, ketones, esters, ethers and / or glycol ethers.
  • Suitable polar organic solvents are methanol, ethanol, n-butanol, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanol, isophorone, Ethyl acetate, lactic acid ethyl ester, 2-methoxyethyl acetate, tetrahydrofuran, ethyl glycol monomethyl ether, diethylene glycol monoethyl ether.
  • the surface of the katoite can be modified uniformly, it is expedient in the presence of the additives of group ve) if they are soluble in polar organic solvents of the type described and / or water with pH values from 8 to 12.
  • the term soluble means in this context that the polymeric additives ve) in the polar organic solvents and in an aqueous solution with pH 10, adjusted with alkali metal hydroxides at 20 ° C., to at least 0.01% by weight, preferably 0.1% by weight - based on the solution - and in particular are completely clearly dissolved under the specified conditions.
  • the modification can also be carried out in situ, that is to say the calcium and aluminum hydroxide solutions from which the katoite is formed can, if appropriate, be added to the additives in the form of their solutions.
  • the compounds c) are present in the compositions according to the invention in an amount of 0.1 to 3.0 parts by weight, based on 100 parts by weight of halogen-containing organic plastic. Quantities of 0.2 to 1.0 05 parts by weight are preferred.
  • the stabilizer compositions to be used according to the invention containing cyanoacetylureas a), perchlorates b) and compounds c) are used in combination with one or more additives which are selected from the group of
  • the stabilizer compositions according to the invention are in solid form.
  • solid is to be understood here in contrast to “pasty” or “liquid”.
  • additive In connection with the use of the term "additive”, however, it should be pointed out that the person skilled in the field of plastics processing classifies the additives both from a structural and a functional point of view.
  • typical plastic additives are: antistatic agents, antifoggants, antioxidants, UV stabilizers, adhesives, calendering aids, film release agents, lubricants, release agents, lubricants, plasticizers, fragrances, flame retardants, fillers, pigments, blowing agents, agents to increase the thermostability (thermal stabilizers ).
  • Suitable glycidyl compounds are those of the groups dl-I) to dl-V) described below.
  • Glycidyl and ß-methylglycidyl esters obtainable by reacting a compound with at least one carboxyl group in the molecule and epichlorohydrin or glycerol dichlorohydrin or b-methyl-epichlorohydrin. The reaction is conveniently carried out in the presence of bases.
  • Aliphatic carboxylic acids can be used as compounds having at least one carboxyl group in the molecule.
  • carboxylic acids are glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid or dimerized or trimerized linoleic acid, acrylic and methacrylic acid, capronic, caprylic, lauric, myristic, palmitic, stearic and pelargonic acid.
  • cycloaliphatic carboxylic acids can also be used, such as, for example, cyclohexane carboxylic acid, tetrahydrophthalic acid, 4- Methyl tetrahydrophthalic acid, hexahydrophthalic acid or 4-
  • Aromatic carboxylic acids such as benzoic acid, phthalic acid, isophthalic acid, trimellitic acid or pyromellitic acid can also be used.
  • Carboxyl-terminated adducts e.g. of trimellitic acid and polyols such as glycerin or 2,2-bis (4-hydroxycyclohexyl) propane.
  • Glycidyl or ( ⁇ -methylglycidyl) ether obtainable by reacting a compound with at least one free alcoholic hydroxy group and / or phenolic
  • Ethers of this type are derived, for example, from acyclic alcohols, such as ethylene glycol, diethylene glycol and higher poly (oxyethylene) glycols, propane-1,2-diol, or poly- (oxypropylene) glycols, propane-1,3-diol, Butane-1,4-diol, poly- (oxytetramethylene) glycols, pentane-1,5-diol, hexane-1,6-diol, hexane-2,4,6-triol, glycerol, 1,1,1- Trimethylolpropane, bistrimethylolpropane, pentaerythritol, sorbitol, and of polyepichlorohydrins, butanol, amyl alcohol, pentanol, and of monofunctional alcohols such as isooctanol, 2-ethylhexanol, isodecanol and C 7 - C 9 al
  • cycloaliphatic alcohols such as 1,3- or 1,4-dihydroxycyclohexane, bis (4-hydroxycyclohexyl) methane, 2,2-bis (4-hydroxycyclohexyl) propane or 1,1- Bis (hydroxymethyl) cyclohex-3-ene or them have aromatic nuclei such as N, N-bis (2-hydroxyethyl) aniline or p, p'-bis (2-hydroxyethylamino) diphenylmethane.
  • cycloaliphatic alcohols such as 1,3- or 1,4-dihydroxycyclohexane, bis (4-hydroxycyclohexyl) methane, 2,2-bis (4-hydroxycyclohexyl) propane or 1,1- Bis (hydroxymethyl) cyclohex-3-ene or them have aromatic nuclei such as N, N-bis (2-hydroxyethyl) aniline or p, p'-bis (2-hydroxyethylamino) diphenylmethane.
  • the epoxy compounds can also be derived from mononuclear phenols, such as, for example, phenol, resorcinol or hydroquinone; or they are based on polynuclear phenols such as, for example, bis (4-hydroxyphenyl) methane, 2,2-bis (4-hydroxyphenyl) propane, 2,2-bis (3,5-dibromo-4-hydroxyphenyl) - propane, 4,4'-dihydroxydiphenyl sulfone or on condensation products of phenols with formaldehyde such as phenol novolaks obtained under acidic conditions.
  • mononuclear phenols such as, for example, phenol, resorcinol or hydroquinone
  • polynuclear phenols such as, for example, bis (4-hydroxyphenyl) methane, 2,2-bis (4-hydroxyphenyl) propane, 2,2-bis (3,5-dibromo-4-hydroxyphenyl) - propane, 4,4'-dihydroxydiphenyl
  • terminal epoxides are, for example: glycidyl-1-naphthyl ether, glycidyl-2-phenylphenyl ether, 2-biphenylglycidyl ether, N- (2,3-epoxypropyl) phthalimide and 2,3-epoxypropyl-4-methoxyphenyl ether.
  • N-Glycidyl compounds obtainable by dehydrochlorinating the reaction products of epichlorohydrin with amines which contain at least one amino hydrogen atom.
  • amines are, for example, aniline, N-methylaniline, toluidine, n-butylamine, bis (4-aminophenyl) methane, m-xylylenediamine or bis (4-methylaminophenyl) methane, but also N, N , 0-triglycidyl-m-aminophenol or N, N, 0-triglycidyl-p-aminophenol.
  • the (N-glycidyl) compounds also include N, N'-di-, N, N ', N "-tri- and N, N', N", N "'- tetraglycidyl derivatives of cycloalkylene ureas, such as ethylene urea or 1,3-propyleneurea, and N, N'-diglycidyl derivatives of hydantoins, such as 5,5-dimethylhydantoin or glycoluril and triglycidyl isocyanurate.
  • cycloalkylene ureas such as ethylene urea or 1,3-propyleneurea
  • N, N'-diglycidyl derivatives of hydantoins such as 5,5-dimethylhydantoin or glycoluril and triglycidyl isocyanurate.
  • S-glycidyl compounds such as, for example, di-S-glycidyl derivatives, which are derived from dithiols, such as, for example, ethane-1,2-dithiol or bis (4-mercaptomethylphenyl) ether.
  • Epoxy resin with a radical of formula I, wherein and R 3 together are -CH 2 -CH 2 - and n 1, for example 3,4-epoxy-6-methyl-cyclohexanecarboxylic acid-
  • Suitable terminal epoxides are, for example (TM means ®):
  • Liquid bisphenol A diglycidyl ethers such as Araldit TM GY 240, Araldit TM GY 250, Araldit TM GY 260, Araldit TM GY 266, Araldit TM GY 2600, Araldit TM MY 790:
  • Solid bisphenol A diglycidyl ethers such as Araldit TM GT 6071, Araldit TM GT 7071, Araldit m GT 7072, Araldit TM GT 6063, Araldit TM GT 7203, Araldit TM GT 6064, Araldit TM GT 7304, Araldit TM GT 7004, Araldit TM GT 6084, Araldit TM GT1999, Araldit TM GT 7077, Araldit TM GT 6097, Araldit TM GT 7097, Araldit TM GT 7008, Araldit TM GT 6099, Araldit TM GT 6608, Araldit TM GT 6609, Araldit TM GT 6610;
  • Liquid bisphenol F diglycidyl ethers such as Araldit TM GY 281, Araldit TM PY 302, Araldit TM PY 306:
  • Solid polyglycidyl ethers of tetraphenylethane such as CG Epoxy Resin TM 0163:
  • Solid and liquid polyglycidyl ethers of phenol formaldehyde novolak such as EPN 1138, EPN 1139, GY 1180, PY 307;
  • Solid and liquid polyglycidyl ethers of o-cresol formaldehyde novolak such as ECN 1235, ECN 1273, ECN 1280, ECN 1299;
  • Liquid alcohol glycidyl ethers such as Shell TM Glycidyl Ether 162, Araldit TM DY 0390, Araldit TM DY 0391; • liquid glycidyl ethers of carboxylic acids such as Shell TM Cardura E terephthalic acid ester, trimellitic acid ester, Araldit TM PY 284;
  • solid heterocyclic epoxy resins such as Araldit TM PT 810;
  • liquid cycloaliphatic epoxy resins such as Araldit TM CY 179;
  • Liquid N, N, 0-triglycidyl ethers of p-aminophenol such as Araldit TM MY 0510;
  • Epoxy compounds with two functional groups are preferably used. However, epoxy compounds with one, three or more functional groups can also be used.
  • Epoxy compounds especially diglycidyl compounds, with aromatic groups are mainly used.
  • Particularly preferred terminal epoxy compounds are diglycidyl ethers based on bisphenols, such as, for example, 2,2-bis (4-hydroxyphenyl) propane (bisphenol A), bis (4-hydroxyphenyl) methane or mixtures of bis (ortho / para-hydroxyphenyl) methane (bisphenol F).
  • bisphenols such as, for example, 2,2-bis (4-hydroxyphenyl) propane (bisphenol A), bis (4-hydroxyphenyl) methane or mixtures of bis (ortho / para-hydroxyphenyl) methane (bisphenol F).
  • the terminal epoxy compounds can be used in an amount of preferably at least 0.1 part, for example 0.1 to 50, advantageously 1 to 30 and in particular 1 to 25 parts by weight, based on 100 parts by weight of PVC.
  • 1,3-Dicarbonyl compounds which can be used can be linear or cyclic dicarbonyl compounds.
  • Dicarbonyl compounds of the following formula are preferably used
  • R 1 C 1 -C 22 alkyl, C 5 -C 0 hydroxyalkyl, C 2 -C 18 alkenyl, phenyl, substituted by OH, C r C 4 alkyl, C 1 -C 4 alkoxy or halogen Phenyl, Cr o-phenylalkyl, C 5 -C ⁇ -cycloalkyl, C 5 -C 12 -cycloalkyl substituted by -Ci-alkyl or a group -R 5 -SR 6 or -R 5 -0- R 6 ,
  • R 2 hydrogen, C r C 8 alkyl, C 2 -C 12 alkenyl, phenyl, C 7 -C 2 alkylphenyl, C 7 - C 10 phenylalkyl or a group -CO- R 4 ,
  • R one of the meanings given for R or Cr s-alkoxy
  • R 4 C 1 -C 4 alkyl or phenyl
  • R 5 Ci-Cio-Al ylen
  • R 6 C 1 -C 12 alkyl, phenyl, C 7 -C 18 alkylphenyl or C 7 -C 10 phenylalkyl.
  • R 1 and R 3 as alkyl can in particular be -C 18 alkyl, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, tert-butyl, pentyl, hexyl, heptyl, octyl, decyl, dodecyl or octadecyl.
  • R 1 and R 3 as hydroxyalkyl represent in particular a group - (CH 2 ) n -OH, where n is 5, 6 or 7.
  • R 1 and R 3 as alkenyl can mean, for example, vinyl, allyl, methallyl, 1-butenyl, 1-hexenyl or oleyl, preferably allyl.
  • R 1 and R 3 as phenyl substituted by OH, alkyl, alkoxy or halogen can be, for example, tolyl, xylyl, tert-butylphenyl, methoxyphenyl, ethoxyphenyl, hydroxyphenyl, chloro-phenyl or dichlorophenyl.
  • R 1 and R 3 as phenylalkyl are in particular benzyl.
  • R 2 and R 3 as cycloalkyl or alkyl-cycloalkyl are in particular cyclohexyl or methylcyclohexyl.
  • R as alkyl can in particular be -C 4 alkyl.
  • R as C 2 -C 12 alkenyl can in particular be allyl.
  • R 2 as alkylphenyl can in particular be tolyl.
  • R 2 as phenylalkyl can in particular be benzyl.
  • R 2 is preferably hydrogen.
  • R 3 as alkoxy can be, for example, methoxy, ethoxy, butoxy, hexyloxy, octyloxy, dodecyloxy, tridecyloxy, tetradecyloxy or octadecyloxy.
  • R 5 as -Cio alkylene is in particular C 2 -C 4 alkylene.
  • R 6 as alkyl is in particular C 4 -C 2 alkyl, such as butyl, hexyl, octyl, decyl or dodecyl.
  • R 6 as alkylphenyl is especially tolyl.
  • R 6 as phenylalkyl is in particular benzyl.
  • 1,3-dicarbonyl compounds of the above formula are acetylacetone, butanoylacetone, heptanoylacetone, stearoylacetone, palmitoylacetone, lauroylacetone, benzoylacetone, dibenzoylmethane, lauroylbenzoylmethane, palmitoylbenzoylmethane, stearoyl-benzoylmethane-benzoylmethylbenzoyl methylbenzoyl methylbenzoyl methylbenzoyl methylbenzoyl methylbenzoyl methylbenzoyl methylbenzoyl methylbenzoyl methylbenzoyl methylbenzoyl methylbenzoyl methylbenzoyl methylbenzyl methylbenzyl benzoyl, benzoyl methoxybenzoyl, ) methane, benzoyl-p-chlorobenzoylmethane, bis (2-hydroxybenzoyl) methan
  • Benzoylformylmethane benzoylphenylacetylmethane, bis-cyclohexanoylmethane, di- pivaloyl-methane, 2-acetylcyclopentanone, 2-benzoylcyclopentanone,
  • 1,3-diketo compounds of the above formula wherein R 1 - s-alkyl, phenyl, phenyl substituted by OH, methyl or methoxy, C 7 -C 10 phenylalkyl or cyclohexyl, R is hydrogen and R is one of those for R has given meanings.
  • 1,3-dicarbonyl compounds of the above formula can be used alone, as mixtures and or as their alkali metal, alkaline earth metal and zinc chelates.
  • the 1,3-diketo compounds can be used in an amount of, for example, 0.01 to 10, advantageously 0.01 to 3 and in particular 0.01 to 2 parts by weight, based on 100 parts by weight of PVC.
  • Z is C0 2 CH 3 , C0 2 C 2 H 5 , C0 2 n C 12 H 25 or -C0 2 C 2 H 4 -S- n C 12 H 2 5.
  • n means that the C 12 H 25 alkyl radical is not branched.
  • T represents unsubstituted C 1-12 alkyl
  • M and n represent numbers from 0 to 20,
  • K is the number 0 or 1
  • R and R ' are independently of one another ethylene, propylene, butylene or an alkylene or cycloalkylene bismethylene group of the type - (-C p H 2p -X-) t C p H 2p -,
  • P is a number in the range from 2 to 8
  • the (poly) dihydropyridines can advantageously be used in the chlorine-containing polymer in an amount of from 0.001 to 5 and in particular from 0.005 to 1 part by weight, based on the polymer.
  • Thiodiethylene bis [5-methoxycarbonyl-2,6-dimethyl-l, 4-dihydro pyridine-3-carboxylate] and thiodiethylene bis [5-methoxycarbonyl-2,6-dimethyl-1,4-dihydropyridine are particularly preferred - 3-carboxylate].
  • Particularly suitable polyols are, for example, pentaerythritol, dipentaerythritol,
  • Tripentaerythritol bistrimethylolpropane, inositol, polyvinyl alcohol, bistrimethylolethane,
  • polyols can be esterified or etherified on one or more OH groups.
  • Preferred polyol derivatives are the esters of
  • Represent polyols with carboxylic acids such as partial glycerol esters of fatty acids, for example glycerol monooleate, glycerol dioleate, glycerol monostearate,
  • polyols such as pentaerythritol, glycerin or
  • polyols or polyol derivatives can be used alone or as a mixture with one another.
  • the polyols or polyol derivatives can be used in an amount of, for example, 0.01 to
  • Parts by weight of halogen-containing organic plastic can be used.
  • both lubricants and release agents and mixtures of lubricants and release agents can be used.
  • products are called release agents that reduce the frictional resistance predominantly between the polymer melt and the steel surface of the machine used in the shaping process; the reduction of the frictional resistance has the consequence that the melt mass pressure is reduced.
  • lubricants mainly act in the polymer melt and reduce the internal frictional forces, which means that the melt maintains a good plastic flow even at high filler contents, which is important for the filling of the shaping tool.
  • solid or liquid calcium salts and / or magnesium salts and / or aluminum salts are used as lubricants or release agents at 20 ° C., which are selected from Calcium salts of saturated or unsaturated, straight-chain or branched monocarboxylic acids with 6 to 36 carbon atoms,
  • lubricants or release agents that can be used alone or in combination with one another as component (d9) are the substances known for this from the prior art.
  • the following types of compounds are preferably suitable: hydrocarbon waxes which melt in the temperature range from 70 to 130 ° C., oxidized polyethylene waxes, free fatty acids with 8 to 22 carbon atoms and their branched chain isomers, for example stearic acid or also hydroxystearic acid, ⁇ -olefins, wax esters, ie Esters of longer-chain monocarboxylic acids and monoalcohols, primary and secondary, saturated and unsaturated higher alcohols with preferably 16 to 44 carbon atoms in the molecule, ethylenediamine distearate, montanic acid esters of diols, for example ethanediol, 1,3-butanediol and glycerol, mixtures of such montanic acid esters with unesterified Montanic acids, partial esters of fatty acids with 8 to
  • mixed esters described in DE-C-19 07 768 with hydroxyl or acid numbers in the range from 0 to 6 made from aliphatic, cycloaliphatic or aromatic dicarboxylic acids having 2 to 22 carbon atoms in the aliphatic molecule Polyols with 2 to 6 hydroxyl groups in the molecule and aliphatic monocarboxylic acids with 12 to 30 C atoms in the molecule.
  • Examples include mixed esters of maleic acid-pentaerythritol-behenic acid, mixed esters of adipic acid-pentaerythritol-oleic acid and mixed esters of adipic acid-pentaerythritol-stearic acid.
  • Such lubricants or release agents can be used in the context of the present invention both individually and in combination with one another, and also in combination with the calcium, magnesium or aluminum salts mentioned above.
  • Titanium dioxide is preferred as pigment dl 1).
  • suitable compounds dl2) reference is expressly made to page 30, line 37 to page 30, line 43 of EP-A-768 336 cited above.
  • the fillers mentioned there are expressly included in the disclosure of the present invention. Titanium dioxide is preferred as pigment dl l).
  • For the fillers dl 2) calcium carbonate (chalk), talc, kaolin and the like are preferred. Chalk is particularly preferred.
  • suitable compounds dl3 reference is expressly made to page 30, line 45 to page 31, line 3 of EP-A-768 336 cited above.
  • the phosphites mentioned there are expressly included in the disclosure of the present invention.
  • suitable compounds dl4 reference is expressly made to page 31, line 5 to page 31, line 19 of EP-A-768 336 cited above.
  • the thiophosphites and thiophosphates mentioned there are expressly included in the disclosure of the present invention.
  • Halogen-containing organic plastics Halogen-containing organic plastics which are to be stabilized with the compositions according to the invention are in particular chlorine-containing polymers or their recyclates.
  • Examples of such chlorine-containing polymers or their recyclates to be stabilized are: polymers of vinyl chloride, vinyl resins containing vinyl chloride units in their structure, such as copolymers of vinyl chloride and vinyl esters of aliphatic acids, in particular vinyl acetate, copolymers of vinyl chloride with esters of acrylic and methacrylic acid and with acrylonitrile Copolymers of vinyl chloride with diene compounds and unsaturated dicarboxylic acids or their anhydrides, such as copolymers of vinyl chloride with diethyl maleate, diethyl fumarate or maleic anhydride, post-chlorinated polymers and copolymers of vinyl chloride, copolymers of vinyl chloride and vinylidene chloride with unsaturated aldehydes, ketones and others, such as acrolein, such as acrolein , Vinyl methyl ether, vinyl isobutyl ether and the like; Polymers of vinylidene chloride and copolymers thereof with
  • the graft polymers of PVC with EVA, ABS and MBS are also included.
  • Preferred substrates are also mixtures of the homo-
  • thermoplastic or / and elastomeric polymers in particular blends with ABS, MBS, NBR, SAN, EVA, CPE, MBAS, PMA, PMMA, EPDM and polylactones.
  • Suspension and bulk polymers and emulsion polymers are also preferred.
  • Polyvinyl chloride is particularly preferred as the chlorine-containing polymer, in particular suspension polymer and bulk polymer.
  • PVC is also understood to mean copolymers or graft polymers of PVC with polymerizable compounds such as acrylonitrile, vinyl acetate or ABS, which may be suspension, bulk or emulsion polymers. PVC homopolymer is also preferred in combination with polyacrylates.
  • stabilizers can also be, in particular, recyclates of chlorine-containing polymers, these being the polymers described in more detail above, which have been damaged by processing, use or storage.
  • PVC recyclate is particularly preferred.
  • the recyclates may also contain small amounts of foreign substances, e.g. Paper, pigments, adhesives that are often difficult to remove. These foreign substances can also come from contact with various substances during use or processing, e.g. Fuel residues, paint components, metal traces and initiator residues.
  • the invention also relates to a process for the stabilization of halogen-containing, in particular chlorine-containing, polymers, a stabilizer composition according to the invention being added to these and the components being intimately mixed in suitable apparatus.
  • the stabilizer compositions according to the invention can expediently be incorporated by the following methods: • As an emulsion or dispersion (one possibility is, for example, the shape of a pasty mixture. An advantage of the combination according to the invention in this dosage form is the stability of the paste.);
  • Another object of the invention is a stabilized PVC, into which a stabilizer composition according to the invention has been incorporated.
  • a stabilized PVC can be produced in a manner known per se, for which purpose the stabilizer combination according to the invention and, if appropriate, further additives are mixed with the PVC using devices known per se, such as the processing apparatus mentioned above.
  • the stabilizers can be added individually or in a mixture or in the form of so-called masterbatches.
  • the invention thus also relates to a process for the production of stabilized PVC, using components such as calenders, mixers, kneaders, extruders and the like to use components a), b), c) and, if appropriate, d) and other additives PVC mixed.
  • the PVC stabilized according to the present invention can be brought into the desired shape in known ways. Such processes are, for example, grinding, calendering, extruding, injection molding, sintering or spinning, furthermore expansion bubbles or processing according to the plastisol process. Extrusion and injection molding are particularly preferred as processes for processing the PVC stabilized according to the invention.
  • the stabilized PVC can also be processed into foams. If azodicarbonamide is used as the blowing agent, it is advantageous if no 1,3-diketones are additionally used.
  • the PVC stabilized according to the invention is suitable for hard, semi-hard and soft formulations.
  • the PVC stabilized according to the invention is particularly suitable for hollow bodies (bottles), packaging films (thermoformed films), blown films, pipes, foams, heavy profiles (window frames), light wall profiles, building profiles, sidings, fittings, office films and equipment housings (computers , Household appliances).
  • PVC rigid foam molded articles and PVC pipes such as for triric or waste water, gas pipes, cable duct and cable protection pipes, pipes for industrial lines, drainage pipes, drainage pipes, gutter pipes and drainage pipes are preferred.
  • PVC Plastic Handbook Volume 2/2, W.Becker / H.Braun, 2nd edition. , 1985, Carl Hanser Verlag, pages 1236-1277.
  • soft formulations are wire jackets, crash pad foils (automobiles) and cable insulation.
  • the PVC stabilized according to the invention is particularly suitable for decorative films, foams, agricultural films, hoses, sealing profiles and office films.
  • Examples of the use of the PVC according to the invention as plastisol are synthetic leather, floor coverings, textile coatings, wallpapers, protective gloves, coil coatings and underbody protection for motor vehicles.
  • Examples of sintered PVC applications of the PVC stabilized according to the invention are slush, slush mold and coil coatings.
  • Ca stearate calcium stearate
  • Loxiol G 32 commercially available lubricant
  • Loxiol G 40 commercially available lubricant
  • Zn stearate zinc stearate

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne des compositions de stabilisateur contenant a) une ou plusieurs urées de cyanoacétyle de formule (A), NC-CH2-CO-N(R1)-CO-NH-R2 (A), dans laquelle les radicaux R1 et R2 représentent indépendamment l'un de l'autre un radical alkyle cyclique ou linéaire, ramifié ou non ramifié et présentant de 1 à 18 atomes de C ou un radical aryle présentant de 6 à 18 atomes de C, qui peut être éventuellement substitué par un ou plusieurs radicaux alkyle présentant de 1 à 6 atomes de C, dans une quantité allant de 0,01 à 0,5 parties en poids, b) un ou plusieurs perchlorates, dans une quantité allant de 0,001 à 0,5 parties en poids, ainsi que c) un ou plusieurs composés choisis dans le groupe formé par les zéolithes, les composés lamellaires cationiques, les phosphites de calcium-hydroxy-aluminium-hydrogène et les katoites, dans une quantité allant de 0,1 à 3,0 parties en poids. Les proportions susmentionnées des composants a), b) et c) se rapportent à 100 parties en poids de matière thermoplastique chlorée devant être stabilisée, la mesure supplémentaire étant valable si lesdites compositions ne contiennent pas de savon de zinc. Ces compositions servent à stabiliser des matières plastiques organiques halogénées, notamment du PVC, contre une dégradation thermique et/ou photochimique.
EP01994641A 2000-11-16 2001-11-07 Composition de stabilisateur pour matieres plastiques organiques halogenees Withdrawn EP1335951A1 (fr)

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DE10056880 2000-11-16
DE2000156880 DE10056880A1 (de) 2000-11-16 2000-11-16 Stabilisator-Zusammensetzung für halogenhaltige organische Kunststoffe
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EP1443076B1 (fr) * 2001-02-16 2010-03-03 Chemtura Vinyl Additives GmbH Système de stabilisation à base de chlorure, comprenant des agents synergétiques contenant du nitrogène pour la stabilisation des polymères halogènés
DE10132835A1 (de) * 2001-07-06 2003-01-16 Cognis Deutschland Gmbh Verwendung von Cyanacetylharnstoffen zur Stabilisierung von antistatisch ausgerüsteten halogenhaltigen organischen Kunststoffen
DE10151486A1 (de) * 2001-10-18 2003-04-30 Cognis Deutschland Gmbh Verwendung von Zusammensetzung als innere Antistatika für thermoplastische Kunststoffe
DE10255155B4 (de) * 2002-11-26 2006-02-23 Baerlocher Gmbh Stabilisierungszusammensetzung für halogenhaltige Polymere, Verfahren zu deren Herstellung und deren Verwendung
DE10255154A1 (de) * 2002-11-26 2004-06-09 Baerlocher Gmbh Stabilisatorzusammensetzung für halogenhaltige Polymere
DE102021202598A1 (de) * 2021-03-17 2022-09-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Stabilisator-Zusammensetzung, Verwendung der Stabilisator-Zusammensetzung, Verfahren zur Stabilisierung von Kondensationspolymeren gegen hydrolytischen Abbau sowie hydrolysestabilisierte Zusammensetzung und Formkörper oder Formteil hieraus

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US5034443A (en) * 1990-05-18 1991-07-23 Witco Corporation Polymer stabilizer and polymer composition stabilized therewith
ATE242293T1 (de) * 1998-06-02 2003-06-15 Crompton Vinyl Additives Gmbh Cyanacetylharnstoffe zum stabilisieren von halogenhaltigen polymeren
DE19947860A1 (de) * 1999-10-05 2001-04-12 Cognis Deutschland Gmbh Verwendung von Harnstoffderivaten der Cyanessigsäure als Stabilisatoren für chlorhaltige thermoplastische Kunststoffe
DE10030464A1 (de) * 2000-06-21 2002-01-03 Cognis Deutschland Gmbh Verwendung von Zusammensetzungen enthaltend Harnstoffderivate der Cyanessigsäure und Harnstoff als Stabilisatoren für chlorhaltige thermoplastische Kunststoffe

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