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DE4136078A1 - Rapid post-condensation of (co)polyamide(s) - by reactive coupling in the melt with thermoplastic oligo- or polyurethane(s) - Google Patents

Rapid post-condensation of (co)polyamide(s) - by reactive coupling in the melt with thermoplastic oligo- or polyurethane(s)

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Publication number
DE4136078A1
DE4136078A1 DE19914136078 DE4136078A DE4136078A1 DE 4136078 A1 DE4136078 A1 DE 4136078A1 DE 19914136078 DE19914136078 DE 19914136078 DE 4136078 A DE4136078 A DE 4136078A DE 4136078 A1 DE4136078 A1 DE 4136078A1
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DE
Germany
Prior art keywords
oligo
polyamides
polyurethane
melt
polyamide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19914136078
Other languages
German (de)
Inventor
Dieter Dr. O-8029 Dresden De Lehmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leibniz Institut fuer Polymerforschung Dresden eV
Original Assignee
INSTITUT fur TECHNOLOGIE DER POLYMERE O-8012 DRESDEN DE
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Priority to DE19914136078 priority Critical patent/DE4136078A1/en
Publication of DE4136078A1 publication Critical patent/DE4136078A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/60—Polyamides or polyester-amides
    • C08G18/603—Polyamides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/46—Post-polymerisation treatment
    • 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
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2170/00—Compositions for adhesives
    • C08G2170/20—Compositions for hot melt adhesives

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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)
  • Adhesives Or Adhesive Processes (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Polyamides (AREA)

Abstract

Rapid prodn. of more highly condensed oligo- and/or (co)polyamides (I) from thermoplastic oligo- and/or (co)polyamides with at least one free amino and/or COOH end-gp. (II) comprises reacting (II) in the melt with thermoplastic oligo- and/or poly-urthanes (TPU) (III), with thorough mixing of the components. (III) are used in pure form or mixed with other types of TPU, in the solid or molten state, or dissolved or dispersed in inert solvent. The amt. of (III) used corresponds to 0.1-2 equivs. blocked NCO gps. per equiv. free amino and/or COOH end gps. in (II). Pref. amt. of (III) corresponds to 0.3-1.1 (esp. 0.7-1.0) equiv. or to more than 1.1 equivs. NCO gps. capped as oligo- and/or poly-urethane) per free amino and/or COOH end gps. USE/ADVANTAGE - (I) are useful for producing fibres, films and moulded prods., and as hot melt adhesives (claimed). Provides a simple process for the rapid post-condensation of (II) by a defined coupling reaction in a stirred reactor or an extruder, to give prods. (I) with higher soln. viscosity and higher melt viscosity

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von schnell auf­ kondensierten (Co-)Polyamiden in der Schmelze, die zur Fadenbildung, zur Spritzgußverarbeitung, als Extrusionstype und als Schmelzkleber eingesetzt werden können.The invention relates to a method for producing quickly condensed (co) polyamides in the melt, which lead to thread formation, for injection molding processing, as an extrusion type and as a hot melt adhesive can be used.

Polyamide werden in großen Mengen in reiner Form oder modifiziert zu Fasern, Kunststoff-Formteilen, Folien sowie als Hilfsstoff in einer Vielzahl von Anwendungen wie z. B. Schmelzkleber eingesetzt. Die Poly­ amidsynthese erfolgt aus Lactamen über kationische, hydrolytische und und anionische Aufbaureaktionen sowie über Polykondensation von Diami­ nen mit Dicarbonsäuren, Aminocarbonsäuren oder Derivaten davon (Vieh­ weg, Müller; Kunststoff-Handbuch, Bd. VI, S. 11 ff., Carl-Hanser-Verlag München, 1966).Large quantities of polyamides are added in pure form or modified Fibers, molded plastic parts, foils and as an auxiliary in one Variety of applications such as B. hot melt adhesive used. The poly Amide synthesis takes place from lactams via cationic, hydrolytic and and anionic build-up reactions and via polycondensation of diami with dicarboxylic acids, aminocarboxylic acids or derivatives thereof (cattle away, miller; Kunststoff-Handbuch, Vol. VI, p. 11 ff., Carl-Hanser-Verlag Munich, 1966).

Bei den Synthesen werden verfahrensbedingt Polymerisationsgrade/Mo­ lekulargewichte erreicht, die kommerziellen Ansprüchen genügen. Höhere Molekulargewichte werden z. B. über thermische Nachpolykondensation in der Festphase realisiert.Depending on the process, degrees of polymerization / Mo reached molecular weights that meet commercial requirements. Higher Molecular weights are e.g. B. via thermal post-polycondensation in the solid phase.

In der DE-OS 38 31 707 werden ein Verfahren zur beschleunigten Poly­ amidherstellung während der Schmelzepolykondensation unter Verwendung von Aminocaprolactam und/oder Lysinkomponenten und unter Zusatz von Katalysatoren, sowie auch eine beschleunigte Festphasen-Nachpolykon­ densation der katalysatorhaltigen (Co-)Polyamide sowie die nach Ver­ fahren hergestellten Polyamide beschrieben.In DE-OS 38 31 707 a method for accelerated poly amide production during melt polycondensation using of aminocaprolactam and / or lysine components and with the addition of Catalysts, as well as an accelerated solid-phase post polycon densification of the catalyst-containing (co) polyamides as well as the Ver drive produced polyamides described.

Die DE-OS 38 31 708 beschreibt ein Verfahren zur Festphasen-Nachpoly­ kondensation von (Co-)Polyamiden, welche geringe Mengen an Lysin-Kom­ ponenten und dazu etwa äquivalente Mengen einer Polycarbonsäure einge­ baut enthalten. Es werden in verkürzter Reaktionszeit thermoplastisch verformbare, leicht verzweigte, aliphatische (Co-)Polyamide mit erhöh­ ter Schmelzeviskosität und ausgeprägter Strukturviskosität erhalten. Um entsprechende Eigenschaften zu erreichen, sind trotzdem Reaktions­ zeiten bis zu mehreren Stunden notwendig. Die Polyamide werden in die­ ser zweiten, energieintensiven Verfahrensstufe thermisch über einen längeren Zeitraum belastet.DE-OS 38 31 708 describes a method for solid phase post poly condensation of (co) polyamides, which contain small amounts of lysine com components and about equivalent amounts of a polycarboxylic acid builds included. It becomes thermoplastic in a shorter reaction time malleable, slightly branched, aliphatic (co) polyamides with increased ter melt viscosity and pronounced structural viscosity. In order to achieve appropriate properties, reactions are nevertheless times of up to several hours are necessary. The polyamides are in the ser second, energy-intensive process stage thermally via a for a long period of time.

Ziel der Erfindung ist es, ein einfaches Verfahren zur schnellen Auf­ kondensation von Oligo- und/oder (Co-)Polyamiden in der Schmelze zu entwickeln, das im Rühr-(Kessel-)Reaktor und/oder im (Reaktions-)Ex­ truder durchführbar ist.The aim of the invention is to provide a simple method for quick on condensation of oligo- and / or (co-) polyamides in the melt develop that in the stirred (boiler) reactor and / or in the (reaction) Ex truder is feasible.

Der Erfindung liegt die Aufgabe zugrunde, über eine definierte, schnelle Kopplungsreaktion Oligo- und/oder (Co-)Polyamide in Schmelze nach einem neuartigen Verfahren aufzukondensieren.The invention is based on the object, via a defined rapid coupling reaction of oligo- and / or (co-) polyamides in the melt to condense using a novel process.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß thermoplastisch verarbeitbare Oligo- und/oder (Co-)Polyamide mit mindestens einer freien Amino- und/oder Carbonsäure-Endgruppe in der Schmelze mit ther­ moplastisch verarbeitbaren Oligo- und/oder Polyurethanen in reiner Form oder im Gemisch mit anderen thermoplastisch verarbeitbaren Oligo- und/oder Polyurethanen in festem oder geschmolzenem Zustand oder in einem inerten Lösungsmittel gelöst oder dispers verteilt unter guter Vermischung der Komponenten umgesetzt werden. Vorteilhaft ist es, die thermoplastisch verarbeitbaren Oligo- und/oder (Co-)Polyamide im Ver­ hältnis pro Äquivalent an freien Amino- und/oder Carbonsäure-Endgrup­ pen im Oligo- und/oder (Co-)Polyamid zu 0,1 bis 2 Äquivalenten an ver­ kappten Isocyanatgruppen in der Oligo-/Polyurethankomponente umzuset­ zen. Dadurch werden definiert aufkondensierte (Co-)Polyamide mit ein­ stellbaren linearen und/oder verzweigten bis zu vernetzten Strukturen in einer Zeitspanne von 0,1 bis 10 Minuten hergestellt. Lineare oder nur wenig verzweigte, aufkondensierte (Co-)Polyamide entstehen bei ei­ nem Umsetzungsverhältnis von einem Äquivalent an Amino- und/oder Car­ bonsäure-Endgruppen im Oligo- und/oder (Co-)Polyamid zu 0,3 bis 1,1, vorzugsweise von 0,7 bis 1,0, Äquivalenten an als Oligo- und/oder Po­ lyurethan verkappten Isocyanat-Gruppen der eingesetzten Oligo- und/oder Polyurethankomponente. Gleichmäßig verzweigte oder vernetzte, aufkondensierte (Co-)Polyamide werden bei einem Umsetzungsverhältnis von einem Äquivalent an Amino- und/oder Carbonsäure-Endgruppen im Oli­ go- und/oder (Co-)Polyamid zu größer als 1,1 Äquivalenten an als Oli­ go- und/oder Polyurethan verkappten Isocyanat-Gruppen der eingesetzten Oligo- und/oder Polyurethankomponente erhalten.According to the invention the object is achieved in that thermoplastic Processable oligo- and / or (co-) polyamides with at least one free amino and / or carboxylic acid end group in the melt with ther Mouldable oligo- and / or polyurethanes in pure Form or in a mixture with other thermoplastically processable oligo- and / or polyurethanes in solid or molten state or in dissolved in an inert solvent or dispersed with good Mixing of the components can be implemented. It is advantageous that thermoplastically processable oligo- and / or (co-) polyamides in Ver ratio per equivalent of free amino and / or carboxylic acid end group pen in oligo- and / or (co-) polyamide to 0.1 to 2 equivalents of ver capped isocyanate groups in the oligo / polyurethane component Zen. In this way, condensed (co) polyamides are defined adjustable linear and / or branched to networked structures produced in a period of 0.1 to 10 minutes. Linear or only slightly branched, condensed (co) polyamides are produced in egg nem conversion ratio of one equivalent of amino and / or car end groups of acid in oligo- and / or (co-) polyamide of 0.3 to 1.1, preferably from 0.7 to 1.0 equivalents of oligo- and / or Po isocyanate groups of the oligo- and / or polyurethane component. Evenly branched or networked, condensed (co) polyamides are at a conversion ratio of one equivalent of amino and / or carboxylic acid end groups in the oil go- and / or (co-) polyamide greater than 1.1 equivalents of than Oli go and / or polyurethane blocked isocyanate groups of the used Obtained oligo and / or polyurethane component.

Die erhaltenen (Co-)Polyamide weisen eine höhere Lösungsviskosität und eine höhere Schmelzeviskosität auf.The (co) polyamides obtained have a higher solution viscosity and a higher melt viscosity.

Der Vorteil des Verfahrens besteht in einer kurzen Zeitspanne, die für die Aufkondensation im Anschluß an die Synthese oder während der Ver­ arbeitung erforderlich ist. The advantage of the method is that it takes a short time the condensation following the synthesis or during the Ver work is required.  

Gegenstand der Erfindung sind auch die nach dem genannten Verfahren hergestellten (Co-)Polyamide sowie ihre Verwendung zur Herstellung von Fasern, Folien oder Formkörpern und als Schmelzkleber.The invention also relates to the processes mentioned Manufactured (co) polyamides and their use for the production of Fibers, foils or moldings and as a hot melt adhesive.

Nachstehend soll die Erfindung an mehreren Beispielen näher erläutert werden:The invention is illustrated below using several examples will:

Beispiel 1example 1

In einem ZSK-30/Werner & Pfleiderer werden 4 kg/h PA-6 (MW = 22 600) bei 300 U/min und ein Oligo-Urethan als Kopplerkomponente mit umge­ rechnet
-a) 90 mmol verkappten Diisocyanat-Einheiten pro h
-b) 180 mmol verkappten Diisocyanat-Einheiten pro h
in der Schmelze umgesetzt. Die Schmelze wird vor der Düse vakuument­ gast. Neben dem Drehmomentanstieg wurden folgende Werte für die rela­ tive Lösungsviskosität ηrel (konz. H2SO4, 25°C, 200 mg/20 ml) erhal­ ten:In a ZSK-30 / Werner & Pfleiderer, 4 kg / h PA-6 (MW = 22,600) at 300 rpm and an oligo-urethane as a coupler component are converted
-a) 90 mmol capped diisocyanate units per hour
-b) 180 mmol capped diisocyanate units per hour
implemented in the melt. The melt is vacuumed in front of the nozzle. In addition to the increase in torque, the following values for the relative solution viscosity η rel (conc. H 2 SO 4 , 25 ° C, 200 mg / 20 ml) were obtained:

- PA-6 ohne Kopplerkomponente ηrel = 2,55
- Versuch a) PA-6 (Gmmol) : Koppler-Einheiten im Oligo-Urethan = 1 : 0,5 ηrel = 2,90
- Versuch b) PA-6 (Gmmol) : Koppler-Einheiten im Oligo-Urethan = 1 : 1 ηrel = 3,43- PA-6 without coupler component η rel = 2.55
- Experiment a) PA-6 (gmmol): coupler units in oligo-urethane = 1: 0.5 η rel = 2.90
- Experiment b) PA-6 (gmmol): coupler units in oligo-urethane = 1: 1 η rel = 3.43

Beispiel 2Example 2

In einem ZSK-30 /Werner & Pfleiderer werden 4 kg/h PA-6 (MW = 22 600) bei 300 U/min aufgeschmolzen und in die Schmelze ein Oligo-Urethan, gelöst in N,N-Dimethylacetamid, in folgenden Mengen:
-a) 90 mmol verkappte Diisocyanat-Einheiten pro h
-b) 180 mmol verkappte Diisocyanat-Einheiten pro h
zudosiert. Die Schmelze wird vor der Düse vakuumentgast. Neben dem Drehmomentanstieg wurden folgende ηrel-Werte (konz. H2SO4; 25°C, 200 mg/20 ml) erhalten:In a ZSK-30 / Werner & Pfleiderer, 4 kg / h PA-6 (MW = 22 600) are melted at 300 rpm and an oligo-urethane, dissolved in N, N-dimethylacetamide, is melted in the following amounts:
-a) 90 mmol capped diisocyanate units per hour
-b) 180 mmol capped diisocyanate units per hour
added. The melt is vacuum degassed in front of the nozzle. In addition to the increase in torque, the following η rel values (conc. H 2 SO 4 ; 25 ° C, 200 mg / 20 ml) were obtained:

- PA-6 ohne Kopplerkomponente ηrel = 2,55
- Versuch a) PA-6 (Gmmol) : Koppler-Einheiten im Oligo-Urethan = 1 : 0,5 ηrel = 2,93
- Versuch b) PA-6 (Gmmol) : Koppler-Einheiten im Oligo-Urethan = 1 : 1 ηrel = 3,45- PA-6 without coupler component η rel = 2.55
- Experiment a) PA-6 (gmmol): coupler units in oligo-urethane = 1: 0.5 η rel = 2.93
- Experiment b) PA-6 (gmmol): coupler units in oligo-urethane = 1: 1 η rel = 3.45

Claims (8)

1. Verfahren zur Herstellung von schnell aufkondensierten Oligo- und/oder (Co-)Polyamiden , dadurch gekennzeichnet, daß thermoplastisch verarbeitbare Oligo- und/oder (Co-)Polyamide mit mindestens einer freien Amino- und/oder Carbonsäure-Endgruppe in der Schmelze mit ther­ moplastisch verarbeitbaren Oligo- und/oder Polyurethanen unter guter Vermischung der Komponenten umgesetzt werden.1. A process for the preparation of rapidly condensed oligo- and / or (co-) polyamides, characterized in that thermoplastically processable oligo- and / or (co-) polyamides with at least one free amino and / or carboxylic acid end group in the melt be implemented with thermoplastic oligo- and / or polyurethanes with good mixing of the components. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die thermo­ plastisch verarbeitbaren Oligo- und/oder Polyurethane in reiner Form oder im Gemisch mit anderen thermoplastisch verarbeitbaren Oligo- und/oder Polyurethanen eingesetzt werden.2. The method according to claim 1, characterized in that the thermo plastically processable oligo- and / or polyurethane in pure form or in a mixture with other thermoplastically processable oligo- and / or polyurethanes are used. 3. Verfahren nach Anspruch l und 2, dadurch gekennzeichnet, daß die thermoplastisch verarbeitbaren Oligo- und/oder Polyurethane in festem oder geschmolzenem Zustand oder in einem inerten Lösungsmittel gelöst oder dispers verteilt eingesetzt werden.3. The method according to claim l and 2, characterized in that the thermoplastically processable oligo- and / or polyurethane in solid or molten state or dissolved in an inert solvent or dispersed can be used. 4. Verfahren nach Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß thermoplastisch verarbeitbare Oligo- und/oder (Co-)Polyamide mit ther­ moplastisch verarbeitbaren Oligo- und/oder Polyurethanen im Verhältnis pro Äquivalent an freien Amino- und/oder Carbonsäure-Endgruppen im Oligo- und/oder (Co-)Polyamid zu 0,1 bis 2 Äquivalenten an verkappten Isocyanat-Gruppen in der Oligo- und/oder Polyurethankomponente umge­ setzt werden.4. The method according to claims 1 to 3, characterized in that thermoplastically processable oligo- and / or (co-) polyamides with ther mouldable oligo- and / or polyurethanes in the ratio per equivalent of free amino and / or carboxylic acid end groups in Oligo- and / or (co-) polyamide to 0.1 to 2 equivalents of capped Isocyanate groups in the oligo and / or polyurethane component vice versa be set. 5. Verfahren nach Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß thermoplastisch verarbeitbare Oligo- und/oder (Co-)Polyamide mit ther­ moplastisch verarbeitbaren Oligo- und/oder Polyurethanen im Verhältnis von einem Äquivalent an Amino- und/oder Carbonsäure- Endgruppen im Oligo- und/oder (Co-)Polyamid zu 0,3 bis 1,1, vorzugsweise von 0,7 bis 1,0, Äquivalenten an als Oligo- und/oder Polyurethan verkappten Iso­ cyanat-Gruppen der eingesetzten Oligo- und/oder Polyurethankomponente umgesetzt werden.5. The method according to claims 1 to 4, characterized in that thermoplastically processable oligo- and / or (co-) polyamides with ther mouldable oligo- and / or polyurethanes in the ratio of one equivalent of amino and / or carboxylic acid end groups in the Oligo- and / or (co-) polyamide from 0.3 to 1.1, preferably from 0.7 to 1.0, equivalents of iso capped as oligo- and / or polyurethane cyanate groups of the oligo- and / or polyurethane component used be implemented. 6. Verfahren nach Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß thermoplastisch verarbeitbare Oligo- und/oder (Co-)Polyamide mit ther­ moplastisch verarbeitbaren Oligo- und/oder Polyurethan im Verhältnis von einem Äquivalent an Amino- und/oder Carbonsäure-Endgruppen im Oli­ go- und/oder (Co-)Polyamid zu größer als 1,1 Äquivalenten an als Oli­ go- und/oder Polyurethan verkappten Isocyanatgruppen der eingesetzten Oligo- und/oder Polyurethankomponente umgesetzt werden.6. The method according to claims 1 to 4, characterized in that thermoplastically processable oligo- and / or (co-) polyamides with ther moplastic processable oligo- and / or polyurethane in the ratio of one equivalent of amino and / or carboxylic acid end groups in the oil  go- and / or (co-) polyamide greater than 1.1 equivalents of than Oli go and / or polyurethane blocked isocyanate groups of the used Oligo and / or polyurethane components are implemented. 7. (Co-)Polyamide, hergestellt nach Verfahren nach Ansprüchen 1 bis 7.7. (Co) polyamides, prepared by the process according to claims 1 to 7. 8. Verwendung der (Co-)Polyamide, hergestellt nach Verfahren nach Ansprüchen 1 bis 7, zur Herstellung von Fasern, Folien oder Formkörpern und als Schmelzkleber.8. Use of the (co) polyamides, prepared by processes according to claims 1 to 7, for the production of fibers, films or moldings and as a hot melt adhesive.
DE19914136078 1991-10-30 1991-10-30 Rapid post-condensation of (co)polyamide(s) - by reactive coupling in the melt with thermoplastic oligo- or polyurethane(s) Withdrawn DE4136078A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914136078 DE4136078A1 (en) 1991-10-30 1991-10-30 Rapid post-condensation of (co)polyamide(s) - by reactive coupling in the melt with thermoplastic oligo- or polyurethane(s)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914136078 DE4136078A1 (en) 1991-10-30 1991-10-30 Rapid post-condensation of (co)polyamide(s) - by reactive coupling in the melt with thermoplastic oligo- or polyurethane(s)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999011711A1 (en) * 1997-09-04 1999-03-11 Eastman Chemical Company Thermoplastic polyurethane additives for enhancing solid state polymerization rates
WO1999011710A1 (en) * 1997-09-04 1999-03-11 Eastman Chemical Company Thermoplastic polyurethane additives for chain extension and reactive extrusion
WO2011144716A1 (en) 2010-05-20 2011-11-24 Lanxess Deutschland Gmbh Thermoplastic moulding compounds with increased melt stability
FR2988394A1 (en) * 2012-03-26 2013-09-27 Rhodia Operations FLUIDIFYING AGENT AND PROCESS USING THE SAME
EP3553113A1 (en) 2018-04-13 2019-10-16 L. Brüggemann GmbH & Co. KG Method for controlling the molecular structure of polyamides

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999011711A1 (en) * 1997-09-04 1999-03-11 Eastman Chemical Company Thermoplastic polyurethane additives for enhancing solid state polymerization rates
WO1999011710A1 (en) * 1997-09-04 1999-03-11 Eastman Chemical Company Thermoplastic polyurethane additives for chain extension and reactive extrusion
WO2011144716A1 (en) 2010-05-20 2011-11-24 Lanxess Deutschland Gmbh Thermoplastic moulding compounds with increased melt stability
FR2988394A1 (en) * 2012-03-26 2013-09-27 Rhodia Operations FLUIDIFYING AGENT AND PROCESS USING THE SAME
WO2013144034A1 (en) 2012-03-26 2013-10-03 Rhodia Operations Fluidizing agent and method using said agent
US9290657B2 (en) 2012-03-26 2016-03-22 Rhodia Operations Fluidizing agent and method using said agent
EP3553113A1 (en) 2018-04-13 2019-10-16 L. Brüggemann GmbH & Co. KG Method for controlling the molecular structure of polyamides
WO2019197679A1 (en) 2018-04-13 2019-10-17 L. Brüggemann Gmbh & Co. Kg Method for controlling the molecular structure of polyamides

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