Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
  • C08L77/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L101/00—Compositions of unspecified macromolecular compounds
  • C08L101/02—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
  • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
  • C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
  • C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
  • C08L77/12—Polyester-amides

Definitions

• the present invention relates to thermoplastic polymer mixture containing n, where n is a natural number greater than 1, polymers P n , with
• the polymers P n differ from one another in 1, 2, 3, 4, 5 or 6 of the properties a), b), c), d), e) and f),
• M n (P) 2 , M W (P) 2 , M Z (P) 2 , M W (P) 2 / M n (P) 2 and M p (P) within three times the repetition -Standard deviation sigma (r) related to M n (P) ⁇ , M w (P) i, M Z (P) ! , M W (P) ⁇ / M n (P) x and M p (P) ⁇ according to DIN 55672-2 in hexafluoroisopropanol as eluent.
• Polymer mixture as well as fibers, fabrics and moldings, obtainable using such a polymer mixture.
• Thermoplastic polymers P n each with one or more recurring functional groups of the structure contained in the polymer chain of P n
• polyamides such as polyamides, polyesters or polyesteramides
• the production of fibers, fabrics and moldings using such polymers are generally known.
• the polymer to be admixed in the production of fibers, textile fabrics and moldings solids ⁇ example, in the case of the fibers pigments such as titanium dioxide, or in the case of the moldings glass particles, such as glass fibers or glass beads.
• These mixtures are then usually processed in the molten state by means of spinnerets to form fibers or sheets or by means of the injection molding process to give shaped articles.
• a disadvantage of such mixtures is that the rheological properties of the mixtures deteriorate significantly with increasing solids content. This increases the viscosity of the melt, which can be determined as a reduction in the flowability according to EN ISO 1133. However, the increase in viscosity leads to an undesirable build-up of pressure in the apparatus which Promote mixture to the spinnerets or injection molds, and to poorer filling, in particular of delicate injection molds.
• a polymer with a lower melt viscosity as can be achieved, for example, by means of a lower molecular weight, can be used.
• the mechanical strength as can be determined, for example, according to ISO 527-1 and 527-2, also usually decreases.
• the object of the present invention was to provide a thermoplastic polymer which, compared to a polymer according to the prior art, has the same relative viscosity, determined in a 1% strength by weight solution in concentrated sulfuric acid versus concentrated sulfuric acid, and the same thread strength, determined in accordance with DIN EN ISO 2062, improved rheological properties, determined as lower pressure when spinning in front of the spinning plate, and better shrinkage behavior, determined according to DIN 53866.
• the thermoplastic polymer mixture contains m, where a natural number is greater than 1, polymers P n , with n a natural number from 1 to m, each with one or more recurring functional groups contained in the polymer chain of P n .
• m no upper limits are known regarding the number m.
• m should be selected from 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, preferably 2, 3, 4, 5, 6, 7, 8, particularly preferably 2, 3, 4, 5, in particular 2.
• the polymers P n each contain one or more functional groups recurring in the polymer chain of P n .
• one or more of the structure come as recurring functional groups
• one or more polymers P n can carry one or more further functional groups in the polymer chain.
• further functional groups there are those which do not prevent the thermoplasticity of the polymer mixture according to the invention, preferably ether, amino, keto, sulfide, sulfone, imide, carbonate, urethane or urea group.
• Particularly preferred polymers P n are polyamides, polyesters or polyester amides.
• Polyamides are understood to mean homopolymers, copolymers, mixtures and grafts of synthetic long-chain polyamides which, as an essential component, have recurring amide groups in the main polymer chain.
• polyamides are nylon 6 (polycaprolactam), nylon 6.6 (polyhexamethylene adipamide), nylon 4.6 (polytetramethylene adipamide), nylon 6.10 (polyhexamethylene sebacamide), nylon 7 (polyenantholac am), nylon 11 (poly lyundecanolactam), nylon 12 (polydodecanolactam). These polyamides are known to have the generic name of nylon.
• Poly amides are also the so-called aramids understood (see aromatic polyamides), such as poly-metaphenylene isophthalamide (NOMEX fiber, US-A-3, 287, 324) or poly-para-phenyleneterephthalamide (KEVLAR ® fiber, US- A-3, 671, 542).
• aromatic polyamides such as poly-metaphenylene isophthalamide (NOMEX fiber, US-A-3, 287, 324) or poly-para-phenyleneterephthalamide (KEVLAR ® fiber, US- A-3, 671, 542).
• polyamides can be produced by two processes.
• the amino and carboxyl end groups of the starting monomers or starting oligomers react with each other to form an amide group and water.
• the water can then be removed from the polymer mass.
• the amino and amide end groups of the starting onomers or starting oligomers react with one another to form an amide group and ammonia.
• the ammonia can then be removed from the polymer mass.
• This polymerization reaction is usually referred to as polycondensation.
• polystyrene resin polystyrene resin
• polyaddition polystyrene resin
• polyamides can be prepared by methods known per se, as described, for example, in DE-A-14 95 198, DE-A-25 58 480, EP-A-129 196 or in: Polymerization Processes, Interscience, New York, 1977, p. 424-467, in particular pp.
• monomers selected from the group consisting of lactams, omega-aminocarboxylic acids, omega-aminocarboxylic acid nitriles, omega-A inocarboxylic acid amides, omega-aminocarboxylic acid salts, omega-aminocarboxylic acid esters, equimolar mixtures from diamines and dicarboxylic acids, dicarboxylic acid / diamine salts, dinitriles and diamines or mixtures of such monomers.
• Monomers or oligomers of a C 2 to C 20 preferably C 2 to Cig arylaliphatic or preferably aliphatic lactam, such as enantholactam, undecanolactam, dodecanolactam or caprolactam,
• C 2 - to C 0 - preferably, C 3 - ⁇ nitriles aminocarboxylic acid such as 6-aminocapronitrile, 11-Aminoundecan Aciditril, monomers or oligomers of C 2 - - to C to C 2 o - Amino Textramiden such as 6-aminocaproic, 11-Aminoundecanklamid as well as their dimers, trimers, tetramers, pentamers or hexamers,
• Esters preferably C 1 -C 8 -alkyl esters, such as methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl ester, from C 2 - to C 2 o - preferably C 3 - to cis-aminocarboxylic acids, such as 6-aminocaproic acid esters, for example 6-aminocaproic acid methyl ester, 11-aminoundecanoic acid esters, for example 11-aminoundecanoic acid methyl ester,
• Derivatives for example chlorides, such as 2,6-naphthalenedicarboxylic acid, preferably isophthalic acid or terephthalic acid, and also their dimers, trimers, tetramers, pentamers or hexamers,
• Monomers or oligomers of a C - to C 2 o _ preferably Cg - to Cis - arylaliphatic diamine, such as m- or p-xylylenediamine, with a C 9 - to C 2 o ⁇ > preferably C 9 - to Cis ⁇ arylaliphatic dicarboxylic acid or their derivatives, for example chlorides, such as o-, m- or p-phenylenediacetic acid, and their dimers, trimers, tetramers, pentamers or hexamers,
• lacta caprolactam diamine tetramethylene diamine, hexamethylene diamine or mixtures thereof and adipic acid, sebacic acid, dodecanedioic acid, terephthalic acid, isophthalic acid or mixtures thereof are used as dicarboxylic acid.
• Caprolactam is particularly preferred as lactam, hexamethylene diamine as diamine and adipic acid or terephthalic acid or mixtures thereof as dicarboxylic acid.
• starting monomers or starting oligomers which, when polymerized to give the polyamides Ny-Ion 6, nylon 6,6, nylon 4,6, nylon 6,10, nylon 6,12, nylon 7, nylon 11, nylon 12 or lead the aramids poly-metaphenylene-isophthalamide or poly-paraphenylene-terephthalamide, in particular to nylon 6 or nylon 66.
• one or more chain regulators can be used in the production of the polyamides.
• Compounds which are advantageous as chain regulators are: have several, such as two, three or four, preferably two, amino groups which are reactive in the formation of polyamides or more, such as two, three or four, preferably two, carboxyl groups which are reactive in the formation of polyamides.
• Dicarboxylic acids such as C 4 -C 10 alkanedicarboxylic acid, for example adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, Cs-Cg-cycloalkanedicarboxylic acids, for example cyclohexane-1,4-dicarboxylic acid, benzene or naphthalenedicarboxylic acid, for example terephthalic acid, for example terephthalic acid, can advantageously be used as chain regulators , Naphthalene-2, 6-dicarboxylic acid, or diamines, such as C 4 -C ⁇ o _ alkanediamines, for example hexamethylene diamine, can be used.
• C 4 -C 10 alkanedicarboxylic acid for example adipic acid, azelaic acid, sebacic acid, dodecanedioic acid
• Cs-Cg-cycloalkanedicarboxylic acids for
• Such chain regulators can carry substituents, such as halogens, for example fluorine, chlorine or bromine, sulfonic acid groups or their salts, such as lithium, sodium, potassium salts, or be unsubstituted.
• substituents such as halogens, for example fluorine, chlorine or bromine, sulfonic acid groups or their salts, such as lithium, sodium, potassium salts, or be unsubstituted.
• Sulfonated dicarboxylic acids in particular sulfoisophthalic acid, and one of their salts, such as alkali metal salts, for example lithium, sodium, potassium salts, preferably lithium or sodium salt, in particular lithium salt, are preferred.
• a chain regulator can advantageously be used in amounts of at least 0.01 mol%, preferably at least 0.05 mol%, in particular at least 0.2 mol%, based on 1 mol of acid amide groups of the polyamide.
• Polyesters are understood to mean homopolymers, copolymers, mixtures and grafts of synthetic long-chain polyesters which, as an essential constituent, repeatedly have ester groups in the polymer main chain.
• Preferred polyesters are esters of an aromatic dicarboxylic acid with an aliphatic dihydro compound, so-called polyalkylene arylates, such as polyethylene terephthalate (PET) or polybutylene terephthalate (PBT).
• Such polyalkylene arylates can be obtained by using an aromatic dicarboxylic acid or its ester or ester-forming derivatives with a molar excess, an aliphatic
• Preferred dicarboxylic acids are 2, 6-naphthalenedicarboxylic acid and terephthalic acid or mixtures thereof. Up to 30 mol%, preferably not more than 10 mol%, of the aromatic dicarboxylic acids can be replaced by aliphatic or cycloaliphatic dicarboxylic acids such as adipic acid, azelaic acid, sebacic acid, dodecanedioic acids and cyclohexanedicarboxylic acids.
• diols with 2 to 6 carbon atoms in particular 1, 2-ethanediol, 1,3-propanediol, 1, 4-butanediol, 1, 6-hexanediol, 1,4-hexanediol, 5-methyl-l , 5-pentanediol, 1, 4-cyclohexanediol, 1, -cyclohexanedimethanol and neopentyl glycol or mixtures thereof are preferred.
• polyesters (A) are polyalkylene terephthalates which are derived from alkanediols having 2 to 10, preferably 2 to 6, carbon atoms. Of these, polyethylene terephthalate and polybutylene terephthalate or mixtures thereof are preferred in particular.
• polyethylene terephthalates and polybutylene terephthalates which contain up to 1% by weight, based on A), preferably up to 0.75% by weight 1,6-hexanediol and / or
• Such polyalkylene terephthalates are known per se and are described in the literature. They contain an aromatic ring in the main chain, which comes from the aromatic dicarboxylic acid.
• the aromatic ring may also be substituted, for example by Ha ⁇ lied such as chlorine and bromine, or by C ⁇ -C 4 alkyl groups such as methyl, ethyl, iso- or n-propyl and n-, i- or t- Butyl groups.
• a molar excess of diol is usually used for the reaction in order to influence the ester balance in the desired form.
• the molar ratios of dicarboxylic acid or dicarboxylic acid ester: diol are usually 1: 1.1 to 1: 3.5, preferably 1: 1.2 to 1: 2.2. Molar ratios of dicarboxylic acid: diol from 1: 1.5 to 1: 2 and diesters: diol from 1: 1.2 to 1.5 are very particularly preferred.
• the reaction can advantageously be carried out in the presence of a catalyst.
• Preferred catalysts are titanium compounds and tin compounds, such as those used inter alia. from US 39 36 421, US 43 29 444 patents are known.
• Preferred compounds are tetrabutyl orthotitanate and triisopropyl titanate as well as tin di-octoate.
• Polyester amides are understood to mean copolymers of polyamides and polyesters which can be obtained by processes known per se based on the processes described for the production of polyamides and polyesters.
• polymers P n can also be found in general form, for example from Ullmann's Encyclopedia of Industrial Chemistry, 5th Ed., VCH Weinheim (Germany), Vol. A21, 1992, pp. 179-205 and 227-251.
• polymers P n can be thermoplastic. All of the polymers P n can be thermoplastic. In an advantageous embodiment there are such
• Thermoplastic polymers are provided that the maximum number of thermoplastic polymers is m.
• the number of at least one species of reactive end groups (EG) of the polymer main chains, based on the sum of all these species of reactive end groups of the polymer main chains of all polymers P n can inequality
• log logarithm based on 10 M w : weight average molecular weight according to DIN 55672-2 Ei: 20, preferably 28, in particular 32.
• the number of at least one species of reactive end groups (EG) of the polymer backbones of each of the polymers P n based on the sum of all of these species of reactive end groups of the polymer backbones of each of the polymers P n , the inequality
• a species of reactive end groups is understood to mean those groups which, with the formation of a functional group as defined in claim 1, can cause the main polymer chain to be lengthened by reaction with a certain type of group present in one or more further chemical compounds.
• the determination of amino end groups as a species of reactive end groups, for example in polyamides, can be carried out as acidimetric titration by titrating the amino end groups in a solution in phenol / methanol 70:30 (parts by weight) with perchloric acid.
• carboxyl end groups as a species of reactive end groups for example in polyamides, can be carried out as acidimetric titration by titrating the carboxyl end groups in a solution in benzyl alcohol with potassium hydroxide solution.
• the number of a number of species of reactive end groups can advantageously be regulated in that some or all of these species of reactive end groups have a Z radical, Z being a certain radical or a mixture of such radicals is understood that blocks a reaction with the specified type of groups present in one or more further chemical compounds and thus an extension of the polymer main chain.
• residues Z are known per se, for example from Ullmann's Encyclopedia of Industrial Chemistry, 5th Ed., VCH Weinheim (Germany), Vol. A21, 1992, pp. 179-205 and 227-251 or from F.Fourne, Synthetic fibers, Carl Hanser Verlag, Kunststoff, Vienna, 1995, pp. 39 and 70.
• compounds which can be blocked are those in which a radical Z which does not have a functional group which is suitable for forming a link to the main polymer chain is found under Forming a functional group in the sense of claim 1 by reaction with one or more further chemical compounds causes an extension of the polymer main chain, is connected to a functional group suitable for forming a linkage with the polymer main chain, which forms a functional group in the sense of claim 1 causes an extension of the polymer main chain by reaction with one or more other chemical compounds.
• the hydroxyl group, the amino group or the carboxyl group are preferably suitable as such functional groups.
• a functional group of the structure is preferably used as the linkage of Z with the polymer main chain of P n
• a substituent ⁇ be selected from the group consisting of hydrogen, alkyl, preferably ⁇ example Ci - Cio-alkyl, in particular Ci - C 4 alkyl, such as methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, aryl, heteroaryl or -C (O) - can be, where the group -C (0) - another polymer chain, alkyl, preferably Ci - Cio-alkyl, especially Ci - C 4 alkyl, such as methyl, ethyl, n-propyl, i-propyl, n-butyl
• the Z radicals can be uniform or different within a polymer P n .
• the Z radicals can be the same or different for some of the polymers P n .
• the Z radicals can be the same or different for all of the polymers P n .
• the radical Z can advantageously be monocarboxylic acids, such as alkane carboxylic acids, for example acetic acid, propionic acid, such as benzene or.
• Naphthalene monocarboxylic acid for example benzoic acid, C 2 - to C 2 o ⁇ > preferably C 2 - to C 12 - alkylamines, such as cyclohexylamine, Cg - to C 2 o ⁇ > preferably Cg - to Cio-aromatic monoamines, such as aniline, or C 7 - to C 20 -, preferably Cs - to Cis ⁇ arylaliphatic monoamines, such as benzylamine or mixtures of such monocarboxylic acids and such monoamines, or the chain regulators mentioned above, or mixtures of such chain regulators with monocarboxylic acids or monoamines.
• monocarboxylic acids such as alkane carboxylic acids, for example acetic acid, propionic acid, such as
• the preferred radical Z including the functional group required for linking to the polymer main chain, are those of the formula, preferably in the case of polyamides, in particular in the case of polyamides regulated with dicarboxylic acids, such as terephthalic acid
• R 1 stands for a functional group which is capable of forming amides with respect to the polymer main chain, preferably a group - (NH) R 5 , where R 5 stands for hydrogen or -CC 8 -alkyl, or a carboxyl group or a carboxyl derivative or a group - (CH 2 ) X (NH) R 5 , where X is 1 to 6 and R5 is hydrogen or -CC 8 alkyl, or a group - (CH 2 ) y COOH, where Y is 1 to 6 is, or a - (CH 2 ) y COOH Acid derivative, where Y is 1 to 6, in particular a group -NH 2 ,
• R 2 represents an alkyl group, preferably a C 1 -C 4 -alkyl group, such as methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, s-butyl, in particular a methyl group,
• R 3 represents hydrogen, C 1 -C 4 -alkyl or OR 4 , where R 4 represents hydrogen or C 1 -C 7 alkyl, in particular R 3 represents hydrogen,
• the tertiary, in particular secondary, amino groups of the piperidine ring systems usually do not react because of steric hindrance.
• the preferred radical Z including the functional group required for linking to the polymer main chain, is, preferably in the case of polyesters, an alkali metal compound or alkaline earth metal compound, preferably sodium carbonate, sodium acetate, advantageously sodium alcoholates, in particular
• Such residues Z can be added to polyester, for example, in accordance with DE-A 44 01 055 and to polyamides, for example in accordance with EP-A 759953.
• each polymer P n has a number average molecular weight M n (P n ) according to DIN 55672-2 in hexafluoroisopropanol as eluent.
• each polymer P n has a weight average molecular weight M w (P n ) according to DIN 55672-2 in hexafluoroisopropanol as eluent.
• each polymer P n has a z-average molecular weight M z (P n ) according to DIN 55672-2 in hexafluoroisopropanol as the eluent.
• each polymer P n has a heterogeneity index M w (P n ) / M n (P n ) according to DIN 55672-2 in hexafluoroisopropanol as the eluent.
• each polymer P n has a molecular weight M p (P n ) according to DIN 55672-2 in hexafluoroisopropanol as the eluent.
• the quotient from the highest mass, which is assigned to a maximum in the differential distribution curve W (M), to the smallest mass, which is assigned to a maximum in the differential distribution curve W (M), should be at least 2, preferably at least 5, in particular at least 10.
• the quotient from the highest mass, which is assigned to a maximum in the differential distribution curve W (M), to the smallest mass, which is assigned to a maximum in the differential distribution curve W (M), should be at most 100 , preferably at most 50. In a further preferred embodiment, the highest mass, which is assigned to a maximum in the differential distribution curve W (M), should be at most 200,000, preferably at most 150,000, in particular at most 100,000.
• the lowest mass which is assigned to a maximum in the differential distribution curve W (M) should be at least 500, preferably at least 1000, particularly preferably at least 2500, in particular at least 5000.
• n is as defined in vorlie ⁇ constricting invention with a UV detector at a wavelength of 230 mmen.
• the polymers P n differ from one another in 1, 2, 3, 4, 5 or 6 of the properties a), b), c), d), e) and f).
• the polymers P n are the same with regard to one or more of the recurring functional groups contained in the polymer chain of P n according to property a), and at the same time the polymers P n differ from one another in 1, 2, 3, 4 or 5 of the properties b), c), d), e) and f).
• the polymer mixture is the same with regard to one or more of the recurring functional groups contained in the polymer chain of P n according to property a), and at the same time the polymers P n differ from one another in 1, 2, 3, 4 or 5 of the properties b), c), d), e) and f).
• the polymer mixture according to the invention can contain additives in a manner known per se, such as organic or inorganic, colored or non-colored additives, such as pigments or moldings.
• Preferred pigments are inorganic pigments, in particular titanium dioxide, titanium dioxide preferably being in the anatase modification, or coloring compounds of inorganic or organic nature preferably in an amount of 0.001 to 5 parts by weight, in particular 0.02 to 2 parts by weight, based on 100 parts by weight polymer mixture.
• the pigments can be added during the production of the polymers P n to a part, all or all of these polymers P n or the polymer mixture during the production.
• Preferred moldings are fibers or spheres made of mineral material, such as glass, silicon dioxide, silicates or carbonates, preferably in an amount of 0.001 to 65 parts by weight, in particular 1 to 45 parts by weight, based on 100 parts by weight of the polymer mixture.
• the moldings can be added to the polymer P n to one, a part or all of these polymers P n or to the polymer mixture during production.
• the polymer mixture according to the invention can be obtained by processes known per se for the production of polymer mixtures.
• a mixture containing polymers P n in solid form can be melted, mixed and solidified.
• one part of the polymers P n in molten form can be added to the other part of the polymers P n in molten or solid form, mixed in the melt and allowed to solidify.
• TheVaccinarrenlasssen can thereby gen in any per se form successes, for example in the form of granules, which can be obtained from the "melt according to per se known process, fibers, sheets or moldings.
• Fibers, sheet-like structures and moldings are likewise obtainable using a polymer mixture according to the invention, for example by melting the polymer mixture and shaping it according to methods known per se.

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• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Organic Chemistry (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
• Polyamides (AREA)
• Lubricants (AREA)
• Photoreceptors In Electrophotography (AREA)
• Polyurethanes Or Polyureas (AREA)
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