DE1035895B - Process for the production of odor-free molded structures from polyvinyl chloride or polyvinyl chloride copolymers - Google Patents
Process for the production of odor-free molded structures from polyvinyl chloride or polyvinyl chloride copolymersInfo
- Publication number
- DE1035895B DE1035895B DEF19689A DEF0019689A DE1035895B DE 1035895 B DE1035895 B DE 1035895B DE F19689 A DEF19689 A DE F19689A DE F0019689 A DEF0019689 A DE F0019689A DE 1035895 B DE1035895 B DE 1035895B
- Authority
- DE
- Germany
- Prior art keywords
- polyvinyl chloride
- production
- odor
- copolymers
- molded structures
- 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
Links
Classifications
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
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
Verfahren zur Herstellung von geruchfreien geformten Gebilden aus Polyvinylchlorid oder Polyvinylchloridmischpolymerisaten Polyvinylchlorid und Polyvinylchloridmischpolymeri sate besitzen den Nachteil, daß sie sich bei der Verarbei tung zu geformten Gebilden, wie Filmen, Folien, Drähten und sonstigen Formkörpern aller Art, auf Mischwalzen, Schneckenpressen und ähnlichen Vorrichtungen bei Temperaturen oberhalb etwa 1600C verfärben, insbesondere dann, wenn ihnen halogenhaltige Weichmacher zugesetzt sind. Werden den Polyvinylchloridkunststoffen außerdem noch schwefel- oder/und selenhaltige Pigmente, wie Zinksulfide, Cadmiumsulfide und Cadmiumselenid e, zugesetzt, so treten außer den erwähnten Verfärbungen häufig auch noch Geruchsbelästigungen auf, die auf die Bildung flüchtiger anorganischer Schwefel- oder/und Selen verbindungen, auch Mercaptane, zurückzuführen sind. Process for the production of odorless molded articles Polyvinyl chloride or polyvinyl chloride copolymers Polyvinyl chloride and polyvinyl chloride copolymers sate have the disadvantage that they turn into shaped structures during processing, such as films, foils, wires and other shaped bodies of all kinds, on mixing rollers, Screw presses and similar devices at temperatures above about 1600C discolour, especially if they contain plasticizers containing halogens. Are the polyvinyl chloride plastics also containing sulfur and / or selenium Pigments, such as zinc sulfide, cadmium sulfide and cadmium selenide e, added so occur in addition to the discoloration mentioned, there are also often unpleasant smells that on the formation of volatile inorganic sulfur and / or selenium compounds, also mercaptans.
Die erwähnten Nachteile treten dann besonders stark auf, wenn die pigmentierten Polyvinylchloridweichmachermischungen wiederholt erhitzt werden, z. B. bei der Wiederverwendung von Abfällen, oder wenn, z. B. infolge von Betriebsstörungen, die Mischungen ungewöhnlich hohe Temperaturen erreichen oder wenn die Mischungen während zu langer Zeit auf an sich normalen Verarbeitungstemperaturen oberhalb etwa 160"C gehalten werden. The disadvantages mentioned are particularly pronounced when the pigmented polyvinyl chloride plasticizer mixtures are repeatedly heated, e.g. B. in the reuse of waste, or if, e.g. B. as a result of operational disruptions, the mixtures reach unusually high temperatures or if the mixtures for too long to normal processing temperatures above about 160 "C are kept.
Der Zusatz der üblichen Stabilisatoren bringt keine Besserung, vor allem dann, wenn die häufig angewandten, besonders wirksamen Schwermetallstabilisatoren mit den gegebenenfalls gleichzeitig vorhandenen Pigmenten nicht verträglich sind. The addition of the usual stabilizers does not improve the situation especially when the frequently used, particularly effective heavy metal stabilizers are not compatible with the pigments that may be present at the same time.
Es wurde nun gefunden, daß dem Verfärben der mit schwefel- oder/und selenhaltigen Pigmenten und halogenhaltigen Weichmachern vermischten Polyvinylchlorid-oder Polyvinylchloridmischpolymerisatkunststoffe und gegebenenfalls einer unter Geruchsbildung vol sich gehenden Zersetzung dadurch vorgebeugt oder diese praktisch unterbunden werden können, daß man den Mischungen geringe Mengen Lactame zusetzt. It has now been found that the discoloration with sulfur or / and Selenium-containing pigments and halogen-containing plasticizers mixed with polyvinyl chloride or polyvinyl chloride Polyvinyl chloride copolymer plastics and optionally one with odor formation volumetric decomposition prevented or practically prevented can be that small amounts of lactams are added to the mixtures.
Die Erfindung kann angewandt werden bei allen üblichen Polyvinylchloridkunststoffen und Polyvinylchloridmischpolymerisaten, wie Mischpolymerisaten aus Vinylchlorid und Vinylacetat und Vinylchlorid und Vinylidenchlorid, die mit halogenhaltigen Weichmachern, wie Trichloräthylphosphat, Chlorbutanolestern der Adipin-, Sebacin- oder Phthalsäure, Chlorhexanolestern dieser Säuren, Chlorparaffinen, aber auch höheren Alkylsulfonsäureestern des Phenols oderlund der Kresole, die in der Regel noch an die Kohlenstoffkette gebundenes Chlor enthalten, vermischt sind und die erwähnten schwefeloder/und selenhaltigen Pigmente enthalten. The invention can be applied to all common polyvinyl chloride plastics and polyvinyl chloride copolymers, such as copolymers of vinyl chloride and vinyl acetate and vinyl chloride and vinylidene chloride, which are made with halogen-containing plasticizers, such as trichloroethyl phosphate, chlorobutanol esters of adipic, sebacic or phthalic acid, Chlorhexanol esters of these acids, chlorinated paraffins, but also higher alkyl sulfonic acid esters of phenol or of cresols, which as a rule still attach to the carbon chain contain combined chlorine, are mixed and the sulfur or / and selenium-containing substances mentioned Contain pigments.
An erfindungsgemäß zuzusetzenden Lactamen seien beispielsweise genannt: s-Aminocaprolactam, C-Methylcaprolactam, C-Butylcaprolactam, C-Cyclohexylcaprolactam und Butyrolactam. Examples of lactams to be added according to the invention are: s-aminocaprolactam, C-methylcaprolactam, C-butylcaprolactam, C-cyclohexylcaprolactam and butyrolactam.
Im allgemeinen wird die angestrebte Wirkung bereits mit Lactamzusätzen, die zwischen etwa 1 und 50/o liegen, erreicht. Vielfach genügen sogar schon Mengen unter etwa I °lO. In general, the desired effect is already achieved with lactam additives, which are between about 1 and 50 / o, achieved. In many cases, even quantities are sufficient below about 10.
Beispiel Aus einer Mischung, die aus 50 Gewichtsteilen Polyvinylchlorid, 25 Gewichtsteilen eines chlorhaltigen höheren Alkylsulfonsäureesters des Phenols oder/und der Kresole, 2,5 Gewichtsteilen Cadmopurrot G und 0,125 Gewichtsteilen Caprolactam besteht, wird bei 165°C eine Folie hergestellt, die 45 Minuten auf dem Walzwerk bearbeitet wird. Die Folie zeigt in bezug auf die Farbe keinen Unterschied gegenüber einer anderen der gleichen Zusammensetzung, die nur 5 Minuten der gleichenTemperatuI ausgesetzt war. Example From a mixture consisting of 50 parts by weight of polyvinyl chloride, 25 parts by weight of a chlorine-containing higher alkyl sulfonic acid ester of phenol or / and the cresols, 2.5 parts by weight of Cadmopur Red G and 0.125 parts by weight Caprolactam, a film is produced at 165 ° C, which is left on for 45 minutes Rolling mill is processed. The film shows no difference in color compared to another of the same composition, which is only 5 minutes at the same temperature was exposed.
Die 45 Minuten lang gewalzte Folie wird nach dem Abziehen sofort in einer Folie gasdicht verpackt und 2 Monate gelagert. Nach dieser Zeit weist sie keinen unangenehmen Geruch auf im Gegensatz zu einer anderen, die unter den gleichen Bedingungen, aber ohne den Caprolactamzusatz hergestellt und gelagert wurde. The film, rolled for 45 minutes, becomes immediately after being peeled off packed gas-tight in a foil and stored for 2 months. After this time she knows no unpleasant smell on unlike another that is under the same Conditions, but without the addition of caprolactam was produced and stored.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF19689A DE1035895B (en) | 1956-03-05 | 1956-03-05 | Process for the production of odor-free molded structures from polyvinyl chloride or polyvinyl chloride copolymers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF19689A DE1035895B (en) | 1956-03-05 | 1956-03-05 | Process for the production of odor-free molded structures from polyvinyl chloride or polyvinyl chloride copolymers |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1035895B true DE1035895B (en) | 1958-08-07 |
Family
ID=7089409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF19689A Pending DE1035895B (en) | 1956-03-05 | 1956-03-05 | Process for the production of odor-free molded structures from polyvinyl chloride or polyvinyl chloride copolymers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1035895B (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR883763A (en) * | 1941-07-04 | 1943-07-16 | Ig Farbenindustrie Ag | Process for shaping strongly polymerized bodies with a straight formula |
-
1956
- 1956-03-05 DE DEF19689A patent/DE1035895B/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR883763A (en) * | 1941-07-04 | 1943-07-16 | Ig Farbenindustrie Ag | Process for shaping strongly polymerized bodies with a straight formula |
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