DE1116393B - Process for increasing the lightfastness of molded polyamides - Google Patents

Process for increasing the lightfastness of molded polyamides

Info

Publication number
DE1116393B
DE1116393B DED31887A DED0031887A DE1116393B DE 1116393 B DE1116393 B DE 1116393B DE D31887 A DED31887 A DE D31887A DE D0031887 A DED0031887 A DE D0031887A DE 1116393 B DE1116393 B DE 1116393B
Authority
DE
Germany
Prior art keywords
increasing
lightfastness
polyamides
molded
nitrogen
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.)
Pending
Application number
DED31887A
Other languages
German (de)
Inventor
Dr Arnulf Sippel
Dipl-Chem Dr Guenther Cordes
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.)
Rhodiaceta AG
Original Assignee
Rhodiaceta AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rhodiaceta AG filed Critical Rhodiaceta AG
Priority to DED31887A priority Critical patent/DE1116393B/en
Publication of DE1116393B publication Critical patent/DE1116393B/en
Pending legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/35Heterocyclic compounds
    • D06M13/355Heterocyclic compounds having six-membered heterocyclic rings
    • D06M13/358Triazines
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/16Nitrogen-containing compounds
    • C08K5/34Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3477Six-membered rings
    • C08K5/3492Triazines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)

Description

Verfahren zur Erhöhung der Lichtbeständigkeit von geformten Polyamiden Eine große Anzahl organischer Substanzen zur Erhöhung der Lichtbeständigkeit von Kunststoffen ist bekannt. Diese werden entweder dem Kunststoff vor oder nach der Verformung einverleibt. Es handelt sich bei diesen Lichtschutzmitteln meistens um Verbindungen, die ultraviolette Strahlen absorbieren.Process for increasing the lightfastness of molded polyamides A large number of organic substances to increase the light resistance of Plastics is known. These are either before or after the plastic Deformation incorporated. These sunscreens are mostly Compounds that absorb ultraviolet rays.

Einzelne Substanzen besitzen jedoch auch Schutzwirkung, ohne daß sie ultraviolette Strahlen absorbieren.However, individual substances also have protective effects without them absorb ultraviolet rays.

Die meisten der bekannten Lichtschutzmittel zeigen jedoch den Nachteil, daß sie schon nach wenigen Wäschen aus den geformten Gebilden, wie Fasern und Fäden, so weit herausgewaschen werden, daß die Lichtschutzwirkung verlorengeht. Most of the known light stabilizers, however, have the disadvantage that after just a few washes they leave the formed structures, such as fibers and threads, be washed out so far that the light protection effect is lost.

Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Erhöhung der Lichtbeständigkeit von geformten Polyamiden, dadurch gekennzeichnet, daß als Lichtschutzmittel substituierte Triazine verwendet werden, die mit demPolyamid chemische Bindungen eingehen und als Substituenten organische Reste mitLichtschutzwirkung enthalten, z. B. auf Grundlage von Polyoxybenzophenonen, Benztriazolen bzw. Benzoxazolen. The present invention relates to a method for increasing the light resistance of molded polyamides, characterized in that as Light stabilizers substituted triazines are used, which chemical with the polyamide Form bonds and, as substituents, organic radicals with a photoprotective effect included, e.g. B. based on polyoxybenzophenones, benzotriazoles or benzoxazoles.

Läßt man Verbindungen dieser Art auf Polyamidfasern und-faden oder-gewebe oder-gewirke einwirken, gegebenenfalls unter Zusatz entsprechender Mengen organischer oder anorganischer Basen zum Abfangen des frei werdenden Halogenwasserstoffes, so wird das Lichtschutzmittel ohne praktische Einbuße in seiner Wirksamkeit an das Polyamid gebunden. One leaves connections of this kind on polyamide fibers and threads or fabrics or knitted fabrics act, if necessary with the addition of appropriate amounts of organic or inorganic bases to trap the liberated hydrogen halide, see above the light stabilizer is effective against the Polyamide bonded.

Es ist an sich bekannt, daß ein Teil der sogenannten » Reaktivfarbstoffe « in der Weise hergestellt wird, das an den Farbstoff durch Umsetzung mit Cyanurchlorid ein Triazinring mit mindestens einem noch aktiven Halogenatom gekoppelt wird. Die so umgesetzten Farbstoffe werden beim Färbevorgang an die Fasergrundlage chemisch gebunden. Es war jedoch nicht vorauszusehen, daß eine Verknüpfung von als Lichtschutzmittel in Frage kommenden organischen Verbindungen mit Cyanurchlorid fast keine Einwirkung auf dieAbsorptionskurve eines Ultraviolett absorbierenden Stoffes hat, selbst dann nicht, wenn man das aus der Umsetzung resultierende Produkt unter Halogenwasserstoffabspaltung an einen Fasergrundstoff bindet. It is known per se that some of the so-called »reactive dyes «In the way that the dye is produced by reacting it with cyanuric chloride a triazine ring is coupled with at least one still active halogen atom. the Dyes converted in this way are chemically applied to the fiber base during the dyeing process bound. However, it was not foreseeable that a combination of as a light stabilizer organic compounds with cyanuric chloride in question have almost no effect on the absorption curve of an ultraviolet absorbent, even then not if the product resulting from the reaction is split off with elimination of hydrogen halide binds to a fiber base.

Die sehr viel größere Waschbeständigkeit von reaktionsfähigen Lichtschutzmitteln gegenüber den entsprechenden, gleichfalls als Lichtschutzmittel angewendeten Ausgangssubstanzen zeigt das folgende Beispiel. The much greater resistance to washing of reactive sunscreens compared to the corresponding starting substances, which are also used as light stabilizers shows the following example.

Herstellung des als Ausgangsstoff dienenden Lichtschutzmittels Äquivalente Mengen 2,4-Dioxybenzophenon und Cyanurchlorid werden in Eiswasser in Gegenwart einer äquivalenten Menge Natriumhydroxyd zur Reaktion gebracht ; das 2,4-Dichlor-6- (3-oxy-4-benzoyl-phenoxy)-triazin fällt als farblose Substanz aus. Production of the light stabilizer used as the starting material equivalents Amounts of 2,4-dioxybenzophenone and cyanuric chloride are present in ice water one equivalent amount of sodium hydroxide reacted; 2,4-dichloro-6- (3-oxy-4-benzoyl-phenoxy) -triazine precipitates as a colorless substance.

Mit ihm werden folgende Versuche durchgeführt : 200-m-Faden aus Polyhexamethylenadipamid mit 2°/o Titanoxydzusatz, Stärke 40 den, 13 Fibrillen, wird in einer Lösung von 1,69 g 2,4-Dichlor-6- (3-oxy-4-benzoyl-phenoxy)-triazin und 0,8 g Pyridin in 20Q ml Aceton 3 Stunden zum Rückfluß erhitzt, die Fasern mit Wasser kurz gespült und bei 100°C getrocknet. The following tests are carried out with it: 200 m thread made of polyhexamethylene adipamide with 2% added titanium oxide, thickness 40 denier, 13 fibrils, is dissolved in a solution of 1.69 g of 2,4-dichloro-6- (3-oxy-4-benzoyl-phenoxy) -triazine and 0.8 g of pyridine in 20Q ml of acetone heated to reflux for 3 hours, the fibers rinsed briefly with water and dried at 100 ° C.

Der Gehalt an wirksamer Substanz (2,4-Dioxybenzophenon) wird photometrisch in konzentrierter Schwefelsäure bestimmt.The content of the active substance (2,4-dioxybenzophenone) is photometric determined in concentrated sulfuric acid.

Die nachfolgende Tabelle gibt die gefundenen Werte vor und nach einer bis drei Wäschen wieder im Vergleich zu dem Gehalt, den man findet, wenn das gleiche Material unter den gleichen Bedingungen mit unsubstituiertem 2,4-Dioxy-benzophenon behandelt wird. The following table shows the values found before and after a up to three washes again compared to the salary one finds if the same Material under the same conditions with unsubstituted 2,4-dioxy-benzophenone is treated.

Gehalt an 2,4-Dioxy-benzophenon in Polyhexamethylenadipamid bzw. an lichtschutzwirksamer Substanz, berechnet auf 2,4-Dioxy-benzophenon in Gewichtsprozenten Mit dem Zum : Triazinderivat Mit 2,4 Dioxy- des 2, 4-Dioxy- benzophenon benzophenon behandelt. behandelt. Gewichtsprozent Gewichtsprozent an 2, 4-Dioxy- an 2, 4-Dioxy- benzophenon benzophenon Vor dem Waschen 0, 42 0, 55 Nach dem ersten Waschen 0, 3 0, 18 zweiten Waschen 0, 29 0, 13 dritten Waschen 0, 28 0, 11 Content of 2,4-dioxy-benzophenone in polyhexamethylene adipamide or of a photoprotective substance, calculated on 2,4-dioxy-benzophenone in percent by weight With the to: Triazine derivative with 2,4 dioxy- des 2, 4-dioxybenzophenone benzophenone treated. treated. Weight percent Percentage by weight of 2,4-dioxy of 2,4-dioxybenzophenone benzophenone Before washing 0, 42 0, 55 After this first wash 0, 3 0, 18 second wash 0, 29 0, 13 third wash 0, 28 0, 11

Claims (2)

PATENTANSPRÜCHE : 1. Verfahren zur Erhöhung der Lichtbeständigkeit von geformten Polyamiden durch stickstoffhaltige Verbindungen, dadurch gekennzeichnet, daß als stickstoffhaltige Verbindungen substituierte Triazine verwendet werden, die mit dem Polyamid chemische Bindungen eingehen und als Substituenten organische Reste mit Lichtschutzwirkung enthalten.PATENT CLAIMS: 1. Process for increasing the lightfastness of molded polyamides by nitrogenous compounds, characterized in that substituted triazines are used as nitrogen-containing compounds, which enter into chemical bonds with the polyamide and organic ones as substituents Contains residues with sun protection effect. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als stickstoffhaltige Verbindungen solche auf Grundlage von Polyoxybenzophenonen, Benztriazolen bzw. Benzoxazolen verwendet werden. 2. The method according to claim 1, characterized in that as nitrogen-containing Compounds those based on polyoxybenzophenones, benzotriazoles or benzoxazoles be used. In Betracht gezogene Druckschriften : Britische Patentschrift Nr. 755 519 ; französische Patentschrift Nr. 1 121229. Documents considered: British Patent No. 755 519; French patent specification No. 1 121229.
DED31887A 1959-11-14 1959-11-14 Process for increasing the lightfastness of molded polyamides Pending DE1116393B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED31887A DE1116393B (en) 1959-11-14 1959-11-14 Process for increasing the lightfastness of molded polyamides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED31887A DE1116393B (en) 1959-11-14 1959-11-14 Process for increasing the lightfastness of molded polyamides

Publications (1)

Publication Number Publication Date
DE1116393B true DE1116393B (en) 1961-11-02

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1270277B (en) * 1964-09-29 1968-06-12 Ici Ltd Process for the production of stabilized polyamides
EP0717140A2 (en) * 1994-12-13 1996-06-19 Ciba-Geigy Ag Method for the treatment of textile fibres
CN102584727A (en) * 2011-11-28 2012-07-18 江南大学 Method for synthesizing novel reactive ultraviolet absorbent and application thereof
CN103088633A (en) * 2012-12-21 2013-05-08 江南大学 Method for improving light-perspiration color fastness of reactive brilliant red dyed fabric
CN118085582A (en) * 2024-04-26 2024-05-28 广东胜宇电缆实业有限公司 High-insulation photovoltaic cable material and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1121229A (en) * 1953-03-12 1956-07-25 Degussa Process for treating polyamide fibers and fibers conforming to those obtained
GB755519A (en) * 1953-08-14 1956-08-22 Ici Ltd Water-soluble organic nitrogen compounds

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1121229A (en) * 1953-03-12 1956-07-25 Degussa Process for treating polyamide fibers and fibers conforming to those obtained
GB755519A (en) * 1953-08-14 1956-08-22 Ici Ltd Water-soluble organic nitrogen compounds

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1270277B (en) * 1964-09-29 1968-06-12 Ici Ltd Process for the production of stabilized polyamides
EP0717140A2 (en) * 1994-12-13 1996-06-19 Ciba-Geigy Ag Method for the treatment of textile fibres
EP0717140A3 (en) * 1994-12-13 1996-06-26 Ciba Geigy Ag
CN102584727A (en) * 2011-11-28 2012-07-18 江南大学 Method for synthesizing novel reactive ultraviolet absorbent and application thereof
CN102584727B (en) * 2011-11-28 2015-04-29 江南大学 Method for synthesizing novel reactive ultraviolet absorbent and application thereof
CN103088633A (en) * 2012-12-21 2013-05-08 江南大学 Method for improving light-perspiration color fastness of reactive brilliant red dyed fabric
CN118085582A (en) * 2024-04-26 2024-05-28 广东胜宇电缆实业有限公司 High-insulation photovoltaic cable material and preparation method thereof

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