DE1155236B - Mixture of stabilizers in the production of foams from chlorine-containing polymers - Google Patents

Mixture of stabilizers in the production of foams from chlorine-containing polymers

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Publication number
DE1155236B
DE1155236B DEC15795A DEC0015795A DE1155236B DE 1155236 B DE1155236 B DE 1155236B DE C15795 A DEC15795 A DE C15795A DE C0015795 A DEC0015795 A DE C0015795A DE 1155236 B DE1155236 B DE 1155236B
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DE
Germany
Prior art keywords
stabilizers
chlorine
tin
mixture
containing polymers
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
DEC15795A
Other languages
German (de)
Inventor
Dr Kurt Kopetz
Dr Georg Wick
Dipl-Ing Helmut Koenig
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.)
Huels AG
Original Assignee
Chemische Werke Huels 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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Priority to DEC15795A priority Critical patent/DE1155236B/en
Publication of DE1155236B publication Critical patent/DE1155236B/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014Use of organic additives
    • 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
    • C08K5/04Oxygen-containing compounds
    • C08K5/09Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • 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
    • C08K5/21Urea; Derivatives thereof, e.g. biuret
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2357/00Characterised by the use of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C08J2357/06Homopolymers or copolymers containing elements other than carbon and hydrogen
    • C08J2357/08Homopolymers or copolymers containing elements other than carbon and hydrogen containing halogen atoms

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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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

Stabilisatorengemisch bei der Herstellung von Schaumstoffen aus chlorhaltigen Polymerisaten Es ist bekannt, daß sich chlorhaltige thermoplastische Polymerisate, wie beispielsweise Polyvinylchlorid, Polyvinylidenchlorid und Vinylchlorid oder Vinylidenchlorid enthaltende Mischpolymerisate, bei der Verarbeitung infolge der Wärmeeinwirkung zersetzen. Deshalb müssen derartigen chlorhaltigen thermoplastischen Polymerisaten gegeignete Stabilisatoren zugegeben werden, die die Zersetzung verhindern. Als Stabilisatoren sind die verschiedensten Verbindungen vorgeschlagen worden. In bezug auf die stabilisierende Wirkung haben sich metallorganische Verbindungen des vierwertigen Zinns, beispielsweise Dibutylzinndilaurat, am besten bewährt. Diese Zinnverbindungen besitzen jedoch den schwerwiegenden Nachteil, daß sie toxisch sind. Diese unerwünschte Eigenschaft schließt eine Verwendung für große Anwendungsgebiete aus. Die ebenfalls vorgeschlagenen Verbindungen des zweiwertigen Zinns, z.B. Salze langkettiger aliphatischer Monocarbonsäuren, sind physiologisch zwar unbedenklich, jedoch nur wenig wirksam. Mixture of stabilizers in the production of foams from chlorine-containing Polymers It is known that chlorine-containing thermoplastic polymers, such as polyvinyl chloride, polyvinylidene chloride and vinyl chloride or Copolymers containing vinylidene chloride, during processing as a result of the Decompose under the influence of heat. Therefore, such chlorine-containing thermoplastic Appropriate stabilizers are added to polymers to prevent decomposition. A wide variety of compounds have been proposed as stabilizers. In With regard to the stabilizing effect, organometallic compounds des tetravalent tin, for example dibutyltin dilaurate, has proven to be best. These However, tin compounds have the serious disadvantage that they are toxic. This undesirable property precludes its use for large fields of application the end. The also proposed compounds of divalent tin, e.g. salts long-chain aliphatic monocarboxylic acids are physiologically harmless, but not very effective.

Weiterhin ist es bekannt, daß Verbindungen von der Art des Harnstoffes, wie Harnstoff, Thioharnstoff und Biuret, in Verbindung mit Alkalisalzen als Stabilisatoren für chlorhaltige thermoplastische Polymerisate verwendet werden können. Die stabilisierende Wirkung dieser Kombinationen kann jedoch nicht befriedigen. Furthermore, it is known that compounds of the type of urea, such as urea, thiourea and biuret, in conjunction with alkali salts as stabilizers can be used for chlorine-containing thermoplastic polymers. The stabilizing However, the effect of these combinations cannot be satisfactory.

Es wurde gefunden, daß man Schaumstoffe aus chlorhaltigen Polymerisaten vorteilhafter stabilisieren kann, wenn man dazu geringe Mengen eines Gemisches bekannter Stabilisatoren verwendet, das aus einer Harnstoffverbindung und einer Zinnverbindung besteht, in der zwei Valenzen des Zinns salzartig durch eine Carbonsäure gebunden sind. Als Harnstoffkomponente eignen sich neben Harnstoff selbst auch Thioharnstoff und Biuret. Als Zinnverbindung verwendet man Zinnsalze höherer Monocarbonsäuren, wie Zinndilaurat, Zinndioleat und Zinndistearat, ferner auch metallorganische Verbindungen des vierwertigen Zinns, wie Dibutylzinndilaurat, Dibutylzinndistearat, Dioctylzinndistearat und Dioctylzinndilaurat. Das Verhältnis der Zinnverbindung zu der Harnstoffkomponente in dem Gemisch kann zwischen 1: 0,2 und 1: 5, vorzugsweise zwischen 1 : 0,5 und 1:1,5 betragen. Die Kombination kann als mechanisches Gemenge eingesetzt werden. In manchen Fällen ist es jedoch vorteilhafter, sie in Form von Addukten zu verwenden, wie man sie als unlösliche Niederschläge erhält, wenn man beispielsweise methanolische Lösungen der Komponenten zusammenbringt. It has been found that foams made from chlorine-containing polymers can stabilize more advantageously if you add small amounts of a mixture known Stabilizers used, made up of a urea compound and a tin compound consists, in which two valences of tin are bound in a salt-like manner by a carboxylic acid are. In addition to urea itself, thiourea is also suitable as a urea component and biuret. Tin salts of higher monocarboxylic acids are used as the tin compound, such as tin dilaurate, tin dioleate and tin distearate, and also organometallic compounds of tetravalent tin, such as dibutyltin dilaurate, dibutyltin distearate, dioctyltin distearate and dioctyl tin dilaurate. The ratio of the tin compound to the urea component in the mixture can be between 1: 0.2 and 1: 5, preferably between 1: 0.5 and 1: 1.5. The combination can be used as a mechanical mixture. However, in some cases it is more advantageous to use them in the form of adducts, how to get them as insoluble precipitates if, for example, methanolic Bringing solutions of the components together.

Die Gemische werden in Mengen von 0,5 bis 4, vorzugsweise von 0,5 bis 3 Gewichtsprozent, bezogen auf die chlorhaltigen Polymerisate, eingesetzt.The mixtures are used in amounts from 0.5 to 4, preferably from 0.5 up to 3 percent by weight, based on the chlorine-containing polymers, are used.

Als Polymerisate kann man sowohl Polyvinylchlorid, Polyvinylidenchlorid als auch Vinylchlorid und bzw. oder Vinylidenchlorid enthaltende Mischpolymerisate verwenden. Die Polymerisate können die üblichen Zusätze an Weichmachungsmitteln, Gleitmitteln, Füllstoffen und Farbstoffen enthalten. Both polyvinyl chloride and polyvinylidene chloride can be used as polymers and copolymers containing vinyl chloride and / or vinylidene chloride use. The polymers can contain the usual additives of plasticizers, Contain lubricants, fillers and dyes.

Die Kombination einer Harnstoffkomponente mit einer Zinnverbindung stabilisiert die Schaumstoffe aus chlorhaltigen Polymerisaten bereits in geringen Mengen zuverlässiger gegen die Einwirkung von Wärme und Licht als die bekannten physiologisch unbedenklichen Stabilisatoren und ist ebenbürtig den besten bekannten, aber toxischen Stabilisatoren, wie Dibutylzinndilaurat. Bei Verwendung von metallorganischen Verbindungen des vierwertigen Zinns in der Kombination kann man, ohne die stabilisierende Wirkung zu verringern, einen beträchtlichen Teil der schwer zugänglichen metallorganischen Verbindungen des vierwertigen Zinns durch die leicht zugängliche und billigere Harnstoffkomponente ersetzen und so außerdem die Toxizität stark herabsetzen. Verwendet man in der Kombination Salze des zweiwertigen Zinns, so erhält man physiologisch unbedenkliche Stabilisatoren, die in ihrer Wirkung den bekannten physiologisch unbedenklichen Stabilisatoren überlegen sind. The combination of a urea component with a tin compound stabilizes the foams made from chlorine-containing polymers to a small extent Quantities more reliable against the effects of heat and light than the known physiologically harmless stabilizers and is on a par with the best known, but toxic stabilizers such as dibutyltin dilaurate. When using organometallic Compounds of tetravalent tin in combination can be used without the stabilizing Effect to reduce a considerable part of the difficult to access organometallic Compounds of tetravalent tin due to the easily accessible and cheaper urea component replace and thus also greatly reduce toxicity. Used in combination Salts of divalent tin, this gives physiologically harmless stabilizers, which are superior to the known physiologically harmless stabilizers in their effect are.

Einen Hartschaum mit Treibmitteln vom Sulfhydrazid-Typ herzustellen, war bisher nicht möglich, da diese Treibmittel erst bei hoher Temperatur (160 bis 1700 C Gas abgeben. Andererseits sind diese neuartigen Treibmittel den Blähmitteln vom Azo-Typ wegen ihrer physiologisch unbedenklichen, nicht ausblühenden Zersetzungsprodukte vorzuziehen. To produce a rigid foam with blowing agents of the sulfhydrazide type, was not possible until now, as these blowing agents only take place at high temperatures (160 until Deliver 1700 C gas. On the other hand, these novel propellants are the blowing agents of the azo type because of their physiologically harmless, non-blooming decomposition products preferable.

Beispiel Ein Gemisch aus 100 Gewichtsteilen Polyvinylchlorid, 10 Gewichtsteilen Diphenylsulfon-3,3'-sulfhydrazid und 3 Gewichtsteilen Stabilisator (Gemisch aus Dibutylzinndistearat und Harnstoff im Verhältnis 1:1,5) wird tablettiert und in einer geschlossenen Form 20 Minuten lang auf 2000 C aufgeheizt. Nach dem Abkühlen und Entformen wird in heißem Wasser nachgetrieben. Man erhält einen hellgelben, gleichmäßigen harten Schaum mit ausgezeichneten Eigenschaften. Example A mixture of 100 parts by weight of polyvinyl chloride, 10 Parts by weight of diphenylsulfone-3,3'-sulfhydrazide and 3 parts by weight of stabilizer (Mixture of dibutyltin distearate and urea in a ratio of 1: 1.5) is made into tablets and heated in a closed mold to 2000 C for 20 minutes. After this Cooling and demolding is carried out in hot water. You get a light yellow, even hard foam with excellent properties.

Claims (1)

PATENTANSPRUCH: Verwendung eines Gemisches bekannter Stabilisatoren, das aus einer Harnstoffverbindung und einer Zinnverbindung besteht, in der zwei Valenzen des Zinns durch eine Carbonsäure gebunden sind, bei der Herstellung von Schaumstoffen aus chlorhaltigen Polymerisaten. PATENT CLAIM: Use of a mixture of known stabilizers, which consists of a urea compound and a tin compound in which two Valences of tin are bound by a carboxylic acid in the manufacture of Foams made from chlorine-containing polymers. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 746 ob1; britische Patentschriften Nr. 674 164, 707 338, 740 203, 759 775, 759 776; USA.-Patentschrift Nr. 2 103 581; »Plastics Institute Transaction« Januar 1955, S. 44 bis 60. Documents considered: German Patent No. 746 ob1; British Patent Nos. 674 164, 707 338, 740 203, 759 775, 759 776; U.S. Patent No. 2,103,581; "Plastics Institute Transaction" January 1955, Pp. 44 to 60.
DEC15795A 1957-11-15 1957-11-15 Mixture of stabilizers in the production of foams from chlorine-containing polymers Pending DE1155236B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC15795A DE1155236B (en) 1957-11-15 1957-11-15 Mixture of stabilizers in the production of foams from chlorine-containing polymers

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258082B (en) * 1964-10-16 1968-01-04 Huels Chemische Werke Ag Process for the production of open-cell soft polyvinyl chloride foams

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103581A (en) * 1934-04-25 1937-12-28 Hazel Atlas Glass Co Vinyl resins
DE746081C (en) * 1940-01-03 1944-05-24 Ig Farbenindustrie Ag Process for improving the heat resistance of high-polymer substances containing halogen
GB674164A (en) * 1949-01-26 1952-06-18 George Judson Chertoff Heat stabilizer for vinyl resins
GB707338A (en) * 1952-03-28 1954-04-14 Union Carbide & Carbon Corp Improvements in or relating to compositions comprising vinyl chloride polymers or copolymer resins
GB740203A (en) * 1953-02-24 1955-11-09 Union Carbide & Carbon Corp Vinyl resin compositions
GB759775A (en) * 1953-11-20 1956-10-24 Pure Chem Ltd Stabilisers for vinyl chloride resins
GB759776A (en) * 1953-11-20 1956-10-24 Pure Chem Ltd Stabilisers for vinyl chloride resins

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103581A (en) * 1934-04-25 1937-12-28 Hazel Atlas Glass Co Vinyl resins
DE746081C (en) * 1940-01-03 1944-05-24 Ig Farbenindustrie Ag Process for improving the heat resistance of high-polymer substances containing halogen
GB674164A (en) * 1949-01-26 1952-06-18 George Judson Chertoff Heat stabilizer for vinyl resins
GB707338A (en) * 1952-03-28 1954-04-14 Union Carbide & Carbon Corp Improvements in or relating to compositions comprising vinyl chloride polymers or copolymer resins
GB740203A (en) * 1953-02-24 1955-11-09 Union Carbide & Carbon Corp Vinyl resin compositions
GB759775A (en) * 1953-11-20 1956-10-24 Pure Chem Ltd Stabilisers for vinyl chloride resins
GB759776A (en) * 1953-11-20 1956-10-24 Pure Chem Ltd Stabilisers for vinyl chloride resins

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258082B (en) * 1964-10-16 1968-01-04 Huels Chemische Werke Ag Process for the production of open-cell soft polyvinyl chloride foams

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