DE2811639A1 - FLAME RETARDANT CONCENTRATES FOR THE MANUFACTURING OF HARDLY FLAMMABLE POLYAETHYLENE COMPOUNDS FOR THE EXTRUSION COATING OF FLAT COMPOSITE MATERIALS - Google Patents

FLAME RETARDANT CONCENTRATES FOR THE MANUFACTURING OF HARDLY FLAMMABLE POLYAETHYLENE COMPOUNDS FOR THE EXTRUSION COATING OF FLAT COMPOSITE MATERIALS

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Publication number
DE2811639A1
DE2811639A1 DE19782811639 DE2811639A DE2811639A1 DE 2811639 A1 DE2811639 A1 DE 2811639A1 DE 19782811639 DE19782811639 DE 19782811639 DE 2811639 A DE2811639 A DE 2811639A DE 2811639 A1 DE2811639 A1 DE 2811639A1
Authority
DE
Germany
Prior art keywords
flame retardant
polyethylene
extrusion coating
antimony trioxide
retardant concentrates
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Withdrawn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
DE19782811639
Other languages
German (de)
Inventor
Utto Dr Kerscher
Ernst Neukirchen
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.)
Chemische Fabrik Kalk GmbH
Original Assignee
Chemische Fabrik Kalk GmbH
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 Fabrik Kalk GmbH filed Critical Chemische Fabrik Kalk GmbH
Priority to DE19782811639 priority Critical patent/DE2811639A1/en
Priority to IT12853/78A priority patent/IT1161709B/en
Priority to FR7832683A priority patent/FR2419956A1/en
Priority to BE192802A priority patent/BE873359A/en
Priority to NL7901828A priority patent/NL7901828A/en
Publication of DE2811639A1 publication Critical patent/DE2811639A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K3/2279—Oxides; Hydroxides of metals of antimony
    • 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
    • C08K5/02—Halogenated hydrocarbons
    • C08K5/03—Halogenated hydrocarbons aromatic, e.g. C6H5-CH2-Cl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers

Description

CHEMISCHE FABRIK KALK GMBH Köln, den 09.03.1978 Postfach 91 02 10 CFK 499; F6 Th/ge 5000 Köln 91 3CHEMISCHE FABRIK KALK GMBH Cologne, March 9th, 1978 PO Box 91 02 10 CFK 499; F6 Th / ge 5000 Cologne 91 3

Flammschutzmittelkonzentrate zur Herstellung schwer "brennbarer Polyäthylenmassen für die Extrusionsbeschichtung flächiger VerbundwerkstoffeFlame retardant concentrates difficult to manufacture "Flammable polyethylene compositions for extrusion coating flat composite materials

Bauplatten:; die mit Hochdruckpolyäthylen beschichtet sind, finden im Bauwesen zunehmend Verwendung. So werden beispielsweise polyäthylenbeschichtete Aluminiumfolien als Dampfsperren verwendet. Weiterhin dienen Glasfaservliese oder Papiere, die einseitig mit Hochdruckpolyäthylen beschichtet sind, zum Kaschieren von Dämm-Matten oder Polyurethanschaumplatten. Derartige Beschichtungen erfolgen im allgemeinen als Extrusionsbeschichtung in einer Stärke von 25 bis 50 μ.Building boards:; which are coated with high pressure polyethylene are increasingly used in construction. For example, polyethylene-coated aluminum foils are used as vapor barriers. Furthermore, glass fiber fleeces or papers coated on one side with high pressure polyethylene are used to laminate insulating mats or polyurethane foam panels. Such coatings are generally carried out as an extrusion coating in a thickness of 25 to 50 μ.

Eine solche Beschichtung bewirkt jedoch, daß die damit ausgerüsteten Bauplatten, selbst wenn sie.im übrigen aus unbrennbaren Stoffen bestehen, leicht entflammbar gemäß der DIN-Norm 4102 werden (Klasse B-3). Um die Platten aber normal oder schwer entflammbar entsprechend den Klassen B-2 oder B-1 der DIN-Norm einzustellen, ist es erforderlich, die Polyäthylenbeschichtung flammwidrig auszurüsten.However, such a coating has the effect that the building boards equipped with it, even if they consist of non-flammable materials, become easily inflammable in accordance with DIN standard 4102 (class B-3). To the However, panels should be set to be normal or flame-retardant in accordance with classes B-2 or B-1 of the DIN standard it is necessary to make the polyethylene coating flame-retardant.

Es ist bereits bekannt, als Flammschutzkomponente für Hochdruckpolyäthylen eine Kombination von Chlorparaffin und Antimontrioxid zu verwenden. Auch der Einsatz von chlorierten Polyäthylenen oder polybromierten aromatischen Verbindungen mit 4 bis 6 Bromatomen im Molekül für diesen Zweck ist bereits beschrieben.It is already known that a combination of chlorinated paraffin is used as a flame retardant component for high pressure polyethylene and antimony trioxide to use. Also the use of chlorinated polyethylenes or polybrominated aromatic Compounds with 4 to 6 bromine atoms in the molecule for this purpose have already been described.

809838/GU3 " 2 "809838 / GU3 " 2 "

-Z--Z-

Für eine Extrusionsbeschichtung ist jedoch ein derartig ausgerüstetes Hochdruckpolyäthylen nicht geeignet, da die thermische Stabilität dieser Verbindungen nur bis maximal 250 0C gewährleistet ist. Eine Extrusionsbeschichtung erfolgt jedoch bei Temperaturen zwischen 270 und 300 0C und erfordert daher Flammschutzmittel, die auch bei diesen Temperaturen beständig sind. Anderenfalls treten Verfärbungen der Polyäthylenschichten und Korrosionen an den Verarbeitung swerkzeug en auf; es kann sogar ein Abreißen des PoIyäthylenfilms von der Unterlage eintreten»For extrusion coating, however, a such equipped high-pressure polyethylene is not suitable, since the thermal stability of these compounds can only be guaranteed up to 250 0 C. However, extrusion coating takes place at temperatures between 270 and 300 ° C. and therefore requires flame retardants which are also resistant at these temperatures. Otherwise there will be discoloration of the polyethylene layers and corrosion on the processing tools; the polyethylene film may even tear off the base »

Damit war die Aufgabe gegeben, schwer brennbare Polyäthylenmassen zu finden, die sich aufgrund ihrer thermischen Stabilität für eine Extrusionsbeschichtung eignen.The task was thus given to find flame-retardant polyethylene masses, which are due to their thermal stability suitable for extrusion coating.

Gegenstand der vorliegenden Erfindung sind Flammschutzmittelkonzentrate zur Herstellung schwer brennbarer, für die Extrusionsbeschichtung flächiger Verbundwerkstoffe geeigneter Polyäthylenmassen. Diese Konzentrate zeichnen sich dadurch aus, daß sie neben Polyäthylen als Flammschutzkomponenten hochbromierte Diphenyle, Diphenyläther oder Terphenyle mit wenigstens 9 Bromatomen pro Molekül, zusammen mit Antimontrioxid, enthalten.The present invention relates to flame retardant concentrates for the production of flame-retardant, for the extrusion coating of flat composite materials suitable polyethylene compounds. Draw these concentrates are characterized by the fact that they contain highly brominated diphenyls, diphenyl ethers or terphenyls as flame retardant components in addition to polyethylene with at least 9 bromine atoms per molecule, together with antimony trioxide.

Solche hochbromierten aromatischen Verbindungen mit wenigstens 9 Bromatomen pro Molekül sind vorzugsweise Nonabromdiphenyl, Decabromdiphenyl oder Decabromdiphenyläther. Weiterhin lassen sich in den erfindungsgemäßen Flammschutzmittelkonzentraten Terphenyle der FormelSuch highly brominated aromatic compounds with at least 9 bromine atoms per molecule are preferably nonabromodiphenyl, Decabromodiphenyl or decabromodiphenyl ether. The flame retardant concentrates according to the invention can also be used Terphenyls of the formula

RE RR RRRE RR RR

RR RR RRRR RR RR

verwenden, bei denen wenigstens 9 R- je ein Bromatom und die restlichen R je ein Wasserstoff- oder Chloratom oder je einen kurzkettigen Alkylrest mit 1 bis 3 C-Atomen bedeuten.use where at least 9 R- each have a bromine atom and the remaining R each represent a hydrogen or chlorine atom or a short-chain alkyl radical with 1 to 3 carbon atoms.

909838/0U3 _ 3 _909838 / 0U3 _ 3 _

Dabei soll in den erfindungsgemäßen Konzentraten der %Gehalt an bromierten aromatischen Verbindungen 23 bis 55 Gew% und an Antimontrioxid 20 bis 38 Gew%, bezogen auf das Gesamtgewicht der Konzentrate,- betragen. The% content of brominated aromatic compounds in the concentrates according to the invention should be 23 to 55% by weight and of antimony trioxide 20 to 38% by weight, based on the total weight of the concentrates.

Zur Herstellung der er.findungsgemäßen Flammschutzmittelkonzentrate werden gepulvertes Hochdruckpolyäthylen, die aromatische Bromverbindung und Antimontrioxid in der vorgesehenen Menge in einem Mischer zu einem homogenen Pulver vermischt. Dieses wird anschließend in einer üblichen Granuliervorrichtung zu Granalien verarbeitet.For the production of the flame retardant concentrates according to the invention Powdered high-pressure polyethylene, the aromatic bromine compound and antimony trioxide are in the intended Amount mixed in a mixer to a homogeneous powder. This is then in a usual Granulating device processed into granules.

Zur Anwendung können diese Granalien in jedem gewünschten Verhältnis mit Polyäthylengranulat gemischt und diese Mischungen anschließend in bekannter Weise extrudiert werden. Je nach der Brandschutzklasse nach DIN 4102, die das Endprodukt erreichen soll, nach der Stärke der Beschichtung und nach dem Gehalt an Flammschutzmittel in dem zur Verwendung gelangenden Konzentrat, kann das in den Extruder eingeführte Gemisch aus 5 bis 60 Gew%, vorzugsweise 6 bis 40 Gew% Konzentrat und 95 bis 40 Gew%, vorzugsweise 94 bis 60 Gew% Polyäthylengranulat bestehen. Die Polyäthylenschicht soll etwa von 1,5 "bis 20 Gew% Brom enthalten. Nachfolgend einige Beispiele für die Herstellung der erfindungsgemäßen Konzentrate.For use, these granules can be mixed with polyethylene granules in any desired ratio and these Mixtures are then extruded in a known manner. Depending on the fire protection class according to DIN 4102, the End product should achieve, according to the thickness of the coating and according to the content of flame retardants in the When the concentrate is used, the mixture introduced into the extruder can be from 5 to 60% by weight, preferably 6 to 40 wt% concentrate and 95 to 40 wt%, preferably 94 to 60% by weight of polyethylene granules are made. The polyethylene layer should be about 1.5 "to 20 wt% bromine contain. Below are a few examples of the preparation of the concentrates according to the invention.

Beispiel 1example 1

In einem Fluidmischer werden 28 kg Hochdruckpolyäthylen-Pulver mit einem Schmelzindex (bei 190 0C und 2,16 kg Belastung) von 17 bis 22, 37 kg Decabromdiphenyläther und 34 kg Antimontrioxid 3 Minuten lang gemischt. Die homogene Pulvermischung wird über eine Dosierschnecke dem Vorratstrichter eines Planetwalzenextruders zugeführt. HierIn a fluid mixer 28 kg high-pressure polyethylene powder having a melt index (at 190 0 C and 2.16 kg load) 17 to 22, 37 kg and 34 kg decabromodiphenyl ether, antimony trioxide are mixed for 3 minutes. The homogeneous powder mixture is fed to the supply hopper of a planetary roller extruder via a metering screw. here

- 4 909838/0443 - 4 909838/0443

'wird mittels Lochplattendüse und anschließender Granuliervorrichtung die Mischung zu Zylindergranulat von 2 bis 3mm Durchmesser verarbeitet.'is made by means of a perforated plate nozzle and a subsequent granulating device the mixture is processed into cylindrical granules with a diameter of 2 to 3 mm.

Beispiel 2Example 2

In der Mischvorrichtung nach Beispiel 1 werden 57 kg Polyäthylenpulver mit einem Schmelzindex (bei 190 0C und 2,16 kg Belastung) von 7 bis 8, 23 kg Decabromdiphenyl und 20 kg Antimontrioxid miteinander vermischt. Die Extrusion der Pulvermischung erfolgt über einen Doppelschneckenextruder mit Lochplattendüse zu 4 mm starkem ZylindergranulatIn the mixing apparatus according to Example 1, 57 kg polyethylene powder having a melt index (at 190 0 C and 2.16 kg load) of 7 to 8, mixed 23 kg and 20 kg of antimony trioxide decabromodiphenyl each other. The powder mixture is extruded via a twin screw extruder with a perforated plate nozzle into 4 mm thick cylindrical granules

Beispiel 3Example 3

In der Mischvorrichtung nach Beispiel 1 werden 20 kg des gleichen Polyäthylenpulvers wie in Beispiel 1 mit 55 kg Undecabromterphenyl und 25 kg Antimontrioxid gemischt. Die homogene Pulvermischung wird auf einem beheizbaren Kneter mit nachgescnaltetem Ünterwassergranulator zu einem Bruchgranulat verarbeitet.In the mixing device according to Example 1, 20 kg of the same polyethylene powder as in Example 1 with 55 kg Undecabromterphenyl and 25 kg of antimony trioxide mixed. The homogeneous powder mixture is made on a heatable kneader processed into broken granules with a downstream underwater granulator.

90983B/044390983B / 0443

Claims (5)

-sr- Patentansprüche-sr- claims 1. Flammschutzmittelkonzentrate zur Herstellung schwer brennbarer, für die Extrusionsbeschichtung flächiger Verbundwerkstoffe geeigneter Polyäthylenmassen, dadurch gekennzeichnet, daß sie neben Polyäthylen als Flammschutzkomponenten hochbromierte Diphenyle, Diphenyläther oder Terphenyle mit wenigstens 9 Bromatomen pro Molekül, zusammen mit Antimontrioxid, enthalten. 1. Flame retardant concentrates for the production of flame retardant, polyethylene compositions suitable for extrusion coating of flat composite materials, characterized in that they contain, in addition to polyethylene as flame retardant components, highly brominated diphenyls, diphenyl ethers or terphenyls with at least 9 bromine atoms per molecule, together with antimony trioxide. 2. Flammschutzmittelkonzentrate nach Anspruch 1, dadurch gekennzeichnet, daß sie neben Polyäthylen und Antimontrioxid Nonabromdiphenyl, Decabromdiphenyl oder Decabromdiphenyläther enthalten.2. Flame retardant concentrates according to claim 1, characterized in that they contain in addition to polyethylene and antimony trioxide Nonabromdiphenyl, decabromodiphenyl or decabromodiphenyl ether. 3. Flammschutzmittelkonzentrate nach Anspruch 1, dadurch gekennzeichnet, daß sie neben .Polyäthylen und Antimontrioxid ein bromiertes Terphenyl der Formel RR RR RR3. flame retardant concentrates according to claim 1, characterized in that, in addition .Polyäthylen antimony trioxide and a brominated terphenyl of formula RR RR RR RR RR RR enthalten, bei dem wenigstens 9 R für je ein Bromatom und die restlichen R für je ein Wasserstoff- oder Chloratom oder für einen kurzkettigen Alkylrest mit 1 bis C-Atomen stehen.RR RR RR contain, in which at least 9 R for each one bromine atom and the remaining R each represent a hydrogen or chlorine atom or a short-chain alkyl radical with 1 to Carbon atoms. 909833/0443909833/0443 ORIGINAL INSPECTEDORIGINAL INSPECTED - Jg- - Jg- 4. Flammschutzmittelkonzentrate nach Ansprüchen 1. bis 3 dadurch gekennzeichnet, daß ihr Gehalt an bromierten aromatischen Verbindungen 23 bis 55 Gew% und an Anti-. montrioxid 20 bis 38 Gew56, bezogen auf das Gesamtgewicht des Konzentrats, beträgt.4. Flame retardant concentrates according to claims 1 to 3, characterized in that their content of brominated aromatic compounds 23 to 55% by weight and of anti-. montrioxide is 20 to 38% by weight based on the total weight of the concentrate. 5. Schwer brennbare, mit Polyäthylen beschichtete Aluminiumfolien, Glasfaservliese oder Papiere, dadurch gekennzeichnet, daß die Polyäthylenschicht hochbromierte Diphenyle, Diphenyläther oder Terphenyle enthält. 5. Hardly combustible, polyethylene-coated aluminum foils, glass fiber fleeces or papers, characterized in that the polyethylene layer contains highly brominated diphenyls, diphenyl ethers or terphenyls. 909838/0443909838/0443
DE19782811639 1978-03-17 1978-03-17 FLAME RETARDANT CONCENTRATES FOR THE MANUFACTURING OF HARDLY FLAMMABLE POLYAETHYLENE COMPOUNDS FOR THE EXTRUSION COATING OF FLAT COMPOSITE MATERIALS Withdrawn DE2811639A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19782811639 DE2811639A1 (en) 1978-03-17 1978-03-17 FLAME RETARDANT CONCENTRATES FOR THE MANUFACTURING OF HARDLY FLAMMABLE POLYAETHYLENE COMPOUNDS FOR THE EXTRUSION COATING OF FLAT COMPOSITE MATERIALS
IT12853/78A IT1161709B (en) 1978-03-17 1978-11-07 CONCENTRATE OF FIREPROOF SUBSTANCES FOR THE MANUFACTURE OF DIFFICULTLY COMBUSTIBLE POLYETHYLENE MASSES FOR THE EXTRUSION COATING OF FLAT COMPOSITE MATERIALS
FR7832683A FR2419956A1 (en) 1978-03-17 1978-11-20 CONCENTRATED FLAME-RESISTANT AGENTS FOR THE MANUFACTURE OF HARDLY FLAMMABLE POLYETHYLENES MASSES FOR EXTRUSION COATING OF FLAT COMPOSITE MATERIALS
BE192802A BE873359A (en) 1978-03-17 1979-01-09 CONCENTRATES OF FIRE RETARDANTS FOR THE MANUFACTURE OF DIFFICULT COMBUSTIBLE POLYETHYLENE MASSES
NL7901828A NL7901828A (en) 1978-03-17 1979-03-07 CONCENTRATES OF A FIRE RESTRICTIVE AGENT FOR THE PREPARATION OF NON-FLAMMABLE POLYETHYLENE MASSES FOR COATING BY EXTRUDING COMPOUND MATERIALS IN THE FORM OF FLAT MATERIAL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782811639 DE2811639A1 (en) 1978-03-17 1978-03-17 FLAME RETARDANT CONCENTRATES FOR THE MANUFACTURING OF HARDLY FLAMMABLE POLYAETHYLENE COMPOUNDS FOR THE EXTRUSION COATING OF FLAT COMPOSITE MATERIALS

Publications (1)

Publication Number Publication Date
DE2811639A1 true DE2811639A1 (en) 1979-09-20

Family

ID=6034705

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782811639 Withdrawn DE2811639A1 (en) 1978-03-17 1978-03-17 FLAME RETARDANT CONCENTRATES FOR THE MANUFACTURING OF HARDLY FLAMMABLE POLYAETHYLENE COMPOUNDS FOR THE EXTRUSION COATING OF FLAT COMPOSITE MATERIALS

Country Status (5)

Country Link
BE (1) BE873359A (en)
DE (1) DE2811639A1 (en)
FR (1) FR2419956A1 (en)
IT (1) IT1161709B (en)
NL (1) NL7901828A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1157253B (en) * 1982-02-09 1987-02-11 Saffa Spa PROCEDURE FOR MAKING SELF-EXTINGUISHING, THROUGH RED PHOSPHORUS, SYNTHETIC THERMOPLASTIC MATERIALS AND PRODUCTS SO OBTAINED
KR910007599B1 (en) * 1983-01-27 1991-09-28 세끼스이 가세이힌 고오교오 가부시끼가이샤 Granular organohalide flame retardant additive
GB8621094D0 (en) * 1986-09-01 1986-10-08 Ici Plc Loading of polymer additives

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1298880A (en) * 1970-03-03 1972-12-06 Berk Ltd Improvements in or relating to polymer compositions
GB1321700A (en) * 1970-12-16 1973-06-27 Berk Ltd Fire retardant polymeric compositions
JPS52127955A (en) * 1976-04-19 1977-10-27 Nissan Chem Ind Ltd Flame-retardant polyolefin resin compositions

Also Published As

Publication number Publication date
IT7812853A0 (en) 1978-11-07
BE873359A (en) 1979-05-02
IT1161709B (en) 1987-03-18
FR2419956A1 (en) 1979-10-12
NL7901828A (en) 1979-09-19

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