DE2209144A1 - THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT - Google Patents

THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT

Info

Publication number
DE2209144A1
DE2209144A1 DE19722209144 DE2209144A DE2209144A1 DE 2209144 A1 DE2209144 A1 DE 2209144A1 DE 19722209144 DE19722209144 DE 19722209144 DE 2209144 A DE2209144 A DE 2209144A DE 2209144 A1 DE2209144 A1 DE 2209144A1
Authority
DE
Germany
Prior art keywords
thermoplastic
light
under
molding compounds
sensitizer
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
DE19722209144
Other languages
German (de)
Inventor
Helmut Dr Barzynski
Dietrich Dr Saenger
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.)
BASF SE
Original Assignee
BASF SE
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
Priority to BE795944D priority Critical patent/BE795944A/en
Application filed by BASF SE filed Critical BASF SE
Priority to DE19722209144 priority patent/DE2209144A1/en
Priority to IT4830573A priority patent/IT977387B/en
Priority to NL7302502A priority patent/NL7302502A/xx
Priority to JP2139173A priority patent/JPS4899242A/ja
Priority to FR7306534A priority patent/FR2173271A1/en
Priority to GB927173A priority patent/GB1412877A/en
Publication of DE2209144A1 publication Critical patent/DE2209144A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C08K5/07Aldehydes; Ketones
    • 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
    • C08K5/0008Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0033Additives activating the degradation of the macromolecular compound

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

Badische Anilin- & Soda-FabriK AG oonoi / / Badische Anilin- & Soda-FabriK AG oonoi / /

Z2U8 j 44Z2U8 j 44

Unser Zeichen: O.Z. 29 018 HMz/LOur reference: O.Z. 29 018 HMz / L

6700 Ludwigshafen, 25.2.19726700 Ludwigshafen, February 25, 1972

Thermoplastische Kunststoff-Formmassen, die unter LichteinwirkungThermoplastic plastic molding compounds that are exposed to light

beschleunigtaccelerated

Die vorliegende Erfindung betrifft thermoplastische Kunststoff-Formmassen, die unter Lichteinwirkung beschleunigt abbauen, enthaltend (1) einen thermoplastischen, synthetischen, organischen hochpolymeren Stoff (Thermoplast) sowie (2) 0,01 bis 5 Gewichtsprozent - bezogen auf den Thermoplast - eines den Abbau des Thermoplasten unter Lichteinwirkung beschleunigenden Stoffes (Sensibilisator). The present invention relates to thermoplastic molding compounds, which degrade more rapidly under the action of light, containing (1) a thermoplastic, synthetic, organic high polymer material (thermoplastic) and (2) 0.01 to 5 percent by weight - based on the thermoplastic - a substance that accelerates the degradation of the thermoplastic under the action of light (sensitizer).

Formmassen dieser Art sind bekannt] sie enthalten als Thermoplaste im allgemeinen Polymerisate des Styrols, Äthylens oder Propylene., also Massen-Kunststoffe, aus denen in großen Mengen Wegwerf-Produkte hergestellt werden, z.B, Verpackungen in Folien- oder- anderer Form. Neben den Thermoplasten enthalten die Formmassen der in Rede stehenden Art noch Sensibilisatoren., d.h. Stoffe, die den Abbau des Thermoplasten unter Lichteinwirkung beschleunigen« Als solche Stoffe hat man z.B, Abkömmlinge des ^-Pyrons verwendet (französische Patentschrift 2 θβθ 66j), Molding compounds of this type are known] as thermoplastics, they generally contain polymers of styrene, ethylene or propylene, that is, bulk plastics from which large quantities of disposable products are made, for example packaging in film or other form. In addition to the thermoplastics, the molding compounds of the type in question also contain sensitizers, ie substances that accelerate the degradation of the thermoplastic when exposed to light .

Eigentliche Aufgabe der Sensibilisatoren ist es, die aus den Perm™ massen hergestellten Produkts umweltfreundlich zu machen in dsm Sinne, daß diese nach Crebra.uoh möglichst schnell verrotten,. Daneben müssen die Ser./lbilisatoren meist noch weitere Bedingungen erfüllen. Verlange xlvä z.B., claß sie die sonstigen Eigenschaft ten der Formmasse·, nicht oaar uSglichst wenig nachteilig bS2.in~ flüssen, etwa die V-i'arbeitbarksit sowi& die physikalischen unö. chemischen Verhalteaswerte Av^h müssen die Sansibilisatorsn in vielen Fällen pliysiologisö2i vn;bsclen;:liGh sein {LsbeiiSffiittslvar·= packungen! ).The actual task of the sensitizers is to make the product made from the Perm ™ materials environmentally friendly in the sense that, according to Crebra.uoh, they rot as quickly as possible. In addition, the serial / bilizers usually have to meet other conditions. Request xlvä, for example, that the other properties of the molding compound, not even as little disadvantageous as possible, influence the workability as well as the physical problems. chemical behavior values Av ^ h, the sansibilisatorsn must be p l iysiologisö2i vn; bsclen;: liGh {LsbeiiSffiittslvar · = packs! ).

113/72 »2-113/72 »2-

308835/106f308835 / 106f

2209UA2209UA

- 2 .- O. Z. 29 0l8- 2 .- O. Z. 29 018

Aufgabenstellung der vorliegenden Erfindung war es, für die eingangs definierten thermoplastischen Kunststoff-Formmassen einen Sensibilisator aufzuzeigen, der den bekannten überlegen ist.The task of the present invention was for the initially defined thermoplastic molding compounds to show a sensitizer that is superior to the known.

Es wurde gefunden, daß diese Aufgabe gelöst werden kann, wenn mani als Sensibilisator ein bestimmtes Benzanthronderivat einsetzt.It has been found that this problem can be solved when i used as sensitizer a particular Benzanthronderivat.

Gegenstand der vorliegenden Erfindung sind dementsprechend thermoplastische Kunststoff-Formmassen, die unter Lichteinwirkung beschleunigt abbauen, enthaltend (1) einen thermoplastischen, synthetischen, organischen hochpolymeren Stoff (Thermoplast) sowie (2) 0,01 bis 5j vorzugsweise 0,1 bis 2, Gewichtsprozent - bezogen auf den Thermoplast - eines den Abbau des Thermoplasten unter Lichteinwirkung beschleunigenden Stoffes (Sensibilisator). Die erfindungsgemäßen Formmassen sind dadurch gekennzeichnet, daß sie als Sensibilisator 6,bzl-Dibrom-benzanthron enthalten.The present invention accordingly relates to thermoplastics Plastic molding compounds which degrade more rapidly under the action of light, containing (1) a thermoplastic, synthetic, organic high-polymer material (thermoplastic) and (2) 0.01 to 5j, preferably 0.1 to 2 percent by weight - based on on the thermoplastic - a substance that accelerates the degradation of the thermoplastic when exposed to light (sensitizer). the Molding compositions according to the invention are characterized in that they contain 6-bzl-dibromobenzanthrone as a sensitizer.

Anders ausgedrückt ist Gegenstand der vorliegenden Erfindung die Verwendung von 6,bzl-Dibrom-benzanthron als Sensibilisator in thermoplastischen Kunststoff-Formmassen, die unter Lichteinwirkung beschleunigt abbauen und enthalten (l) einen thermoplastischen, synthetischen, organischen hochpolymeren Stoff (Thermoplast) sowie (2) 0,01 bis 5, vorzugsweise 0,1 bis 2, Gewichtsprozent - bezogen auf den Thermoplast - eines den Abbau des Thermoplasten unter Lichteinwirkung beschleunigenden Stoffes (Sensibilisator).In other words, the subject of the present invention is the use of 6, bzl-dibromobenzanthrone as a sensitizer in thermoplastic plastic molding compounds that degrade more rapidly under the action of light and contain (l) a thermoplastic, synthetic, organic high polymer material (thermoplastic) and (2) 0.01 to 5, preferably 0.1 to 2, percent by weight - based on on the thermoplastic - a substance that accelerates the degradation of the thermoplastic when exposed to light (sensitizer).

Für den erfindungsgemäßen Zweck geeignete Thermoplaste sind die einschlägig üblichen Polymerisate, Polyaddate und Polykondensate. Zu nennen sind beispielsweise Olefin-, Styrol- und Vinylchlorid-Polymerisate, Polylactame und Polyurethane sowie Polyester und Polyamide. Als bevorzugt geeignet haben sich erwiesen Homo- und Copolymerisate mit Äthylen, Propylen, Buten-(l), 4-Methylpenten-(1) oder Styrol als Stamm-Monomeren; - also auch schlagfest modifizierte Polystyrole bzw. Styrolpolymerisate. Eine Spitzenstellung in der Eignung nehmen ein Polyäthylen, Polypropylen und PoIybuten-(l). - Die zum erfindungsgemäßen Zweck geeigneten Thermoplaste sind in großer Vielfalt im Handel erhältlich, so daß sich nähere Aussagen zu ihnen erübrigen. Erwähnt sei lediglich, daß die Thermoplaste die einschlägig üblichen Hilfs- bzw. ZusatzstoffeThermoplastics suitable for the purpose according to the invention are relevant customary polymers, polyaddates and polycondensates. Examples include olefin, styrene and vinyl chloride polymers, Polylactams and polyurethanes as well as polyesters and polyamides. Homo- and have proven to be particularly suitable Copolymers with ethylene, propylene, butene- (l), 4-methylpentene- (1) or styrene as parent monomers; - So also impact-resistant modified polystyrenes or styrene polymers. A top position in suitability take a polyethylene, polypropylene and polybutene (l). - The thermoplastics suitable for the purpose according to the invention are commercially available in a large variety, so that more details about them are superfluous. It should only be mentioned that the thermoplastics are the relevant customary auxiliaries or additives

309835/1067309835/1067

- 3 - O.Z. 29 018- 3 - O.Z. 29 018

enthalten können, z.B. Treibmittel zum Herstellen sehauraförmiger Produkte, Gleitmittel, Pigmente, Farbstoffe usw. Enthalten die Thermoplaste auch Lichtstabilisatoren, so wirken diese im allgemeinen den Sensibilisatoren in gewissem Umfang entgegen.may contain, e.g. propellants for making sehaura-shaped Products, lubricants, pigments, dyes, etc. If the thermoplastics also contain light stabilizers, these generally work counteract the sensitizers to a certain extent.

Der erfindungsgemäß einzusetzende Sensibilisator ist 6, bzl-Dibrom-benzanthron. The sensitizer to be used according to the invention is 6, bzl-dibromobenzanthrone.

Dieser Stoff hat die FormelThis substance has the formula

er ist bekannt und im Rahmen der Farbstoffchemie im Handel erhältlich. it is known and is commercially available in the context of dye chemistry.

Das Herstellen der in Rede stehenden thermoplastischen Kunststoff-Formmassen aus den Komponenten kann in einfacher Weise erfolgen, so wie man üblicherweise Additive in die betroffenen Thermoplaste - möglichst homogen - einarbeitet, z.B. durch Walzen oder Extrudieren. The production of the thermoplastic molding compounds in question from the components can be done in a simple manner, as is usually the case with additives in the thermoplastics concerned - as homogeneously as possible - incorporated, e.g. by rolling or extruding.

Auch das Verarbeiten der Formmassen zu Formteilen kann ohne weiteres mit den für die betroffenen Thermoplaste üblichen "Vorrichtungen erfolgen.The processing of the molding compositions into molded parts can also be carried out without further ado with the usual "devices" for the thermoplastics concerned.

Die Formmassen wird man vor allem zum Herstellen solcher Produkte verwenden, die unter Lichteinwirkung schnell abbauen sollen. Dies sind in erster Linie für Verpackungszwecke bestimmte Produkte, wie Behältnisse und Folien aus geschäumten oder ungescnäumten Formmassen; - aber auch andere Produkte, z.B. Mulehfolien für gärtnerische und landwirtschaftliche Zwecke, kommen in Betracht.The molding compounds will be used primarily for the manufacture of products that are supposed to degrade quickly when exposed to light. this are primarily products intended for packaging purposes, such as containers and foils made of foamed or non-foamed Molding compounds; - but also other products, e.g. Muleh films for horticultural and agricultural purposes come into consideration.

Beispiel 1example 1

100 Gewichtsteile eines handelsüblichen Polyäthylens (Dichte: 0,918 g/cm-5), das keine photoaktiven Additive enthält, wird mit 1 Gewichtsteil 6, bzl- Dibrom-benzanthron homogen ver-aiaelit (WeI-ding-Extruder; 24o°C). . - Λ 100 parts by weight of a commercially available polyethylene (density: 0.918 g / cm- 5 ), which does not contain any photoactive additives, is mixed homogeneously with 1 part by weight of 6, bzl-dibromobenzanthrone (WeI-ding extruder; 24o ° C.). . - Λ

309835/1067309835/1067

2209UA2209UA

- 4 - O. Z. 29 018- 4 - O. Z. 29 018

200/U dicke Folien aus dieser Formmasse bauen bei Lichteinwirkung unter vergleichbaren Bedingungen etwa 7 mal so schnell ab wie ebensodicke Folien aus der gleichen, jedoch unsensibilisierten Formmasse.200 / U thick films from this molding compound build when exposed to light under comparable conditions about 7 times as fast as films of the same thickness made from the same but unsensitized film Molding compound.

Beispiel 2Example 2

100 Gewichtsteile eines handelsüblichen Polypropylens, das keine photoaktiven Additive enthält, wird mit 0,5 Gewichtsteilen 6, bzl-Dibrom-benzanthron homogen vermischt (Welding-Extruder; 240 C).100 parts by weight of a commercially available polypropylene which does not contain any photoactive additives is mixed with 0.5 parts by weight of 6, bzl-dibromobenzanthrone mixed homogeneously (welding extruder; 240 C).

200^ dicke Folien aus dieser Formmasse bauen bei Lichteinwirkung unter vergleichbaren Bedingungen etwa 5 mal so schnell ab wie ebensodicke Folien aus der gleichen, jedoch unsensibilisiertfcn Formmasse.200 ^ thick films from this molding compound build when exposed to light under comparable conditions about 5 times as fast as films of the same thickness made of the same, but unsensitized Molding compound.

Beispiel 3Example 3

100 Gewichtsteile eines handelsüblichen Polystyrols, das keine photoaktiven Additive enthält, wird mit 0,4 Gewichtsteilen 6, bzl-Dibrom-benzanthron homogen vermischt (ZSK-Extruder; 2200C).Contains 100 parts by weight of a commercial polystyrene having no photoactive additives is 0.4 parts by weight of 6, bzl-dibromo-benzanthrone homogeneously mixed (ZSK extruder; 220 0 C).

20OyU dicke Folien aus dieser Formmasse bauen bei Lichteinwirkung unter vergleichbaren Bedingungen etwa 3,5 mal so schnell ab wie ebensodlcke Folien aus der gleichen, jedoch unsensibilisierten Formmasse.20OyU thick films from this molding compound build when exposed to light under comparable conditions about 3.5 times as fast as just as thick foils made of the same, but unsensitized Molding compound.

-5-309835/1067 -5-309835 / 1067

Claims (2)

2209U4 - 5 - O. Z. 29 018 Patentansprüche2209U4-5 - O. Z. 29 018 patent claims 1. Thermoplastische Kunststoff-Formmassen, die unter Lichteinwirkimg beschleunigt abbauen, enthaltend (1) einen thermoplastischen, synthetischen, organischen hochpolymeren Stoff (Thermoplast) sowie (2) 0,01 bis 5 Gewichtsprozent- - bezogen auf den Thermoplast - eines den Abbau des Thermoplasten unter Lichteinwirkung beschleunigenden Stoffes (Sensibilisator), dadurch gekennzeichnet, daß die Formmassen als Sensibilisator 6,bzl-Dibrom-benzanthron enthalten.1. Thermoplastic molding compounds that degrade accelerated under the action of light, containing (1) a thermoplastic, synthetic, organic high-polymer material (thermoplastic) and (2) 0.01 to 5 percent by weight - based on the thermoplastic - one of the degradation of the thermoplastic Substance accelerating under the action of light (sensitizer), characterized in that the molding compositions contain 6, bzl-dibromobenzanthrone as the sensitizer. 2. Verwendung von 6, bz 1-Dibrom-benzanthron als Sensibilisator
in thermoplastischen Kunststoff-Formmassen, die unter Lichteinwirkung beschleunigt abbauen und enthalten (l) einen thermoplastischen, synthetischen, organischen hochpolymeren Stoff (Thermoplast) sowie (2) 0,01 bis 5 Gewichtsprozent - bezogen auf den Thermoplast - eines den Abbau des Thermoplasten unter Lichteinwirkung beschleunigenden Stoffes (Sensibilisator).
2. Use of 6, or 1-dibromobenzanthrone as a sensitizer
in thermoplastic molding compounds that degrade more rapidly under the action of light and contain (l) a thermoplastic, synthetic, organic high-polymer material (thermoplastic) and (2) 0.01 to 5 percent by weight - based on the thermoplastic - one of the degradation of the thermoplastic under the influence of light accelerating substance (sensitizer).
Badische Anilin- & Soda-Fabrik AGBadische Anilin- & Soda-Fabrik AG 309835/1067309835/1067
DE19722209144 1972-02-26 1972-02-26 THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT Pending DE2209144A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE795944D BE795944A (en) 1972-02-26 MATERIALS TO BE MOLDED INTO THERMOPLASTIC RESINS WHICH SUBJECT ACCELERATED DEGRADATION UNDER THE ACTION OF LIGHT
DE19722209144 DE2209144A1 (en) 1972-02-26 1972-02-26 THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT
IT4830573A IT977387B (en) 1972-02-26 1973-02-16 FORMABLE MASSES OF SYNTHETIC THERMOPLASTIC SUBSTANCE WHICH DECOMPOSE RAPIDLY UNDER THE ACTION OF LIGHT
NL7302502A NL7302502A (en) 1972-02-26 1973-02-22
JP2139173A JPS4899242A (en) 1972-02-26 1973-02-23
FR7306534A FR2173271A1 (en) 1972-02-26 1973-02-23 Light-degradable thermoplastics compsn - contg 6, bz1- dibromo-benzanthrone as sensitiser
GB927173A GB1412877A (en) 1972-02-26 1973-02-26 Thermoplastic moulding compositions showing accelerated degradation under the action of light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722209144 DE2209144A1 (en) 1972-02-26 1972-02-26 THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT

Publications (1)

Publication Number Publication Date
DE2209144A1 true DE2209144A1 (en) 1973-08-30

Family

ID=5837193

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722209144 Pending DE2209144A1 (en) 1972-02-26 1972-02-26 THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT

Country Status (6)

Country Link
JP (1) JPS4899242A (en)
BE (1) BE795944A (en)
DE (1) DE2209144A1 (en)
FR (1) FR2173271A1 (en)
IT (1) IT977387B (en)
NL (1) NL7302502A (en)

Also Published As

Publication number Publication date
BE795944A (en) 1973-08-27
JPS4899242A (en) 1973-12-15
IT977387B (en) 1974-09-10
NL7302502A (en) 1973-08-28
FR2173271A1 (en) 1973-10-05
FR2173271B3 (en) 1976-02-20

Similar Documents

Publication Publication Date Title
DE1694296B2 (en) See production of dimensionally stable and impact-resistant injection-molded parts from Polyäthylenterephthalat-Gemi
DE2449491A1 (en) PROCESS FOR THE MANUFACTURING OF HOMOGENOUS, STRIP OR GRANULATE THERMOPLASTIC MASSES
DE1255302C2 (en) Thermoplastic molding compounds for the production of self-extinguishing moldings
DE2911719A1 (en) METHOD FOR PRODUCING LIGHTWEIGHT FOAM FROM THERMOPLASTIC CRYSTALLINE PLASTICS
DE2209144A1 (en) THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT
DE2019945A1 (en) Polystyrene moulding materials for prepnof foam bodies
DE2545223C3 (en) Self-extinguishing thermoplastic molding compounds
DE2420384A1 (en) PROCESS FOR THE FOAMING OF POLYMER MATERIALS AND SUITABLE FOAMABLE OR. POLYMER FOAM COMPOUND
DE2209256A1 (en) THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT
DE2209139A1 (en) Light degradable thermoplastics compsn - contg 4-(para-chlorobenzoylamino)-1,9-anthrapyrimidine as sensitiser
DE2232362A1 (en) THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT
DE2209254A1 (en) Light-degradable thermoplastics - contng azobenzene deriv as sensitiser to accelerate breakdown
DE2209143A1 (en) THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT
DE2209140A1 (en) Light degradable thermoplastics - contg benzil or phenanthrene quinone as sensitiser to accelerate breakdown
DE2209142A1 (en) THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT
DE2209141A1 (en) Light-degradable thermoplastics - contg 2,3-dichloro- naphthoquinone as sensitiser to accelerate breakdown
DE2331773A1 (en) Polyolefin moulding compsns - contg. cyclopentadienyl metal carbonyls to accelerate decompsn by light
DE2209138A1 (en) Light degradable thermoplastics compsn - contg disodium salt of 3',4',5',6'-tetraiodofluoresce in as sensitiser
DE2209145A1 (en) Light-degradable thermoplastics compsn - contg 1-phenyl -4,6-(bis-(5'-benzoylamino-anthraquinoyl-1')-amino)-s-triazine as sen
DE2230790A1 (en) THERMOPLASTIC PLASTIC MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER THE EFFECT OF LIGHT
DE2007706C3 (en) Flame-retardant, impact-modified polyvinyl chloride compounds
DE2331774A1 (en) POLYOLEFINE MOLDING COMPOUNDS THAT DEGRAD ACCELERATELY UNDER LIGHTING
DE2331676A1 (en) Polyolefin packing materials contg. ferrocene - for accelerated decomposition under action of light
DE1965341B2 (en) Foamable molding compounds
DE1694649A1 (en) Manufacture of foamed resins

Legal Events

Date Code Title Description
OHN Withdrawal