DE1237779B - Process for the production of foamed foils from thermoplastics - Google Patents
Process for the production of foamed foils from thermoplasticsInfo
- Publication number
- DE1237779B DE1237779B DE1959B0077023 DEB0077023A DE1237779B DE 1237779 B DE1237779 B DE 1237779B DE 1959B0077023 DE1959B0077023 DE 1959B0077023 DE B0077023 A DEB0077023 A DE B0077023A DE 1237779 B DE1237779 B DE 1237779B
- Authority
- DE
- Germany
- Prior art keywords
- swelling
- solvent
- dissolving
- organic
- vinyl polymer
- 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
- 229920001169 thermoplastic Polymers 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 8
- 239000004416 thermosoftening plastic Substances 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000011888 foil Substances 0.000 title description 2
- 239000002904 solvent Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 11
- 230000008961 swelling Effects 0.000 claims description 11
- 229920002554 vinyl polymer Polymers 0.000 claims description 9
- 238000009835 boiling Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004801 Chlorinated PVC Substances 0.000 claims description 3
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cyclohexene Chemical compound C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 description 2
- LPIQUOYDBNQMRZ-UHFFFAOYSA-N cyclopentene Chemical compound C1CC=CC1 LPIQUOYDBNQMRZ-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
-
- 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
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/22—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers modified by chemical after-treatment
- C08J2327/24—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers modified by chemical after-treatment halogenated
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
Verfahren zum Herstellen von geschäumten Folien aus thermoplastischen Kunststoffen Zusatz zum Patent: 1 176844 Gegenstand des Patents 1 176 844 ist ein Verfakren zum Herstellen feinporiger und leichter geschäumter Folien aus Lösungen von thermoplastischen Vinylpolymerisaten in Mischungen von niedrigsiedenden Lösungsmitteln und organischen, nichtlösenden oder nur quellenden Flüssigkeiten durch Verdampfen des Lösungsmittels und Aufschäumen des Vinylpolymerisats, das die nichtlösende oder nur quellende organische Flüssigkeit enthält, durch Erwärmen auf Temperaturen oberhalb des Erweichungsbereichs des Vinylpolymerisats, bei dem man solche Mischungen aus einem Lösungsmittel und einer nichtlösenden oder nur quellenden Flüssigl(eit verwendet, die eine nichtlösende oder nur quellende organische Flüssigkeit enthalten, deren Siedetemperatur niedriger als diejenige des Lösungsmittels ist.Process for the production of foamed sheets from thermoplastic Plastics Addendum to the patent: 1 176844 The subject of the patent 1 176 844 is a Verification for the production of fine-pored and light foamed foils from solutions of thermoplastic vinyl polymers in mixtures of low-boiling solvents and organic, non-solvent or only swelling liquids by evaporation of the solvent and foaming of the vinyl polymer, which is the non-dissolving or contains only swelling organic liquid by heating to temperatures above the softening range of the vinyl polymer in which such mixtures are made a solvent and a non-dissolving or only swelling liquid used, which contain a non-dissolving or only swelling organic liquid, their Boiling temperature is lower than that of the solvent.
Es wurde nun befunde, daß man geschäumte Folien aus thermoplastischen Vinylpolymerisaten mit vorteilhaften Eigenschaften herstellen kann, indem man als thermoplastisches Vinylpolymerisat nachchloriertes Polyvinylchlorid verwendet. It has now been found that foamed sheets made of thermoplastic Can produce vinyl polymers with advantageous properties by as thermoplastic vinyl polymer used after chlorinated polyvinyl chloride.
Niedrigsiedende, nichtlösende oder nur quellende organische Flüssigkeiten, die als Treibmittel wirken, sind im allgemeinen leichtflüchtige Stoffe mit kleiner Diffusionsgeschwindigkeit im Thermoplasten, z. B. aliphatische Kohlenwasserstoffe, wie Pentan, Hexan, Petroläther, oder cyclische Kohlenwasserstoffe, wie Cyclohexan, Cyclohexen, Cyclopentan oder Cyclopenten. Low-boiling, non-dissolving or only swelling organic liquids, which act as propellants are generally volatile substances with less Diffusion rate in thermoplastics, e.g. B. aliphatic hydrocarbons, such as pentane, hexane, petroleum ether, or cyclic hydrocarbons such as cyclohexane, Cyclohexene, cyclopentane or cyclopentene.
Als Lösungsmittel können vor allem solche verwendet werden, die, wie Methylenchlorid, Schwefelkohlenstoff, Methylformiat und Acetonitril, eine große Diffusionsgeschwindigkeit im Thermoplasten haben. Above all, solvents that can be used are those that like methylene chloride, carbon disulfide, methyl formate and acetonitrile, a great one Have diffusion speed in the thermoplastic.
Bei dem neuen Verfahren können dieselben niedrigsiedenden Lösungsmittel und organischen, nichtlösenden oder nur quellenden Flüssigkeiten sowie die gleichen weiteren Verfahrensmerkmale wie beim Verfahren des Patents 1 176 844 verwendet bzw. angewandt werden. The same low-boiling solvents can be used in the new process and organic, non-solvent or only swelling liquids as well as the same further process features as used in the process of patent 1 176 844 or can be applied.
Es lassen sich nach diesem Verfahren expandierbare Folien und Platten aus thermoplastischen Polymerisaten herstellen, die als Treibmittel wirkende, niedrigsiedende, nichtlösende oder nur quellende organische Flüssigkeit in homogener Verteilung enthalten. Diese können wie üblich durch kurzes Erwärmen, zweckmäßig in heißem Wasser oder mit Heißdampf, zu Schaumstoffen mit sehr kleinen Raumgewichten, die je nach den für das Schäumen gewählten Bedingungen zwischen 10 und 40 g/l liegen, geschäumt werden. This process can be used to produce expandable films and sheets from thermoplastic polymers, which act as blowing agents, low-boiling, contain non-dissolving or swelling organic liquid in homogeneous distribution. This can be done as usual by briefly warming up, expediently in hot water or with superheated steam, to foams with very small densities, depending on the the conditions chosen for foaming are between 10 and 40 g / l, foamed will.
Den thermoplastischen Polymerisaten können natürlich auch andere Stoffe, wie z. B. Farbstoffe, in der Hitze Gase abspaltende organische Stoffe, Flammschutzmittel, zugesetzt werden. Other thermoplastic polymers can of course also be used Substances such as B. dyes, organic substances that release gases in the heat, flame retardants, can be added.
Die nach diesem Verfahren hergestellten Folien können auf den verschiedensten Gebieten der Isolierungstechnik Anwendung finden. The films produced by this process can be applied to the most diverse Areas of insulation technology are used.
Die in dem folgenden Beispiel genannten Teile sind Gewichtsteile. The parts mentioned in the following example are parts by weight.
Beispiel 2,25 Teile nachchloriertes Polyvinylchlorid (61 O/o C12) werden in 7,75 Teilen Methylenchlorid gelöst. Example 2.25 parts of post-chlorinated polyvinyl chloride (61 O / o C12) are dissolved in 7.75 parts of methylene chloride.
Man rührt 0,75 Teile Pentan ein und gießt aus dieser Lösung in der üblichen Weise eine Folie. Nach dem Verdunsten des Lösungsmittels durch Lagern an der Luft wird die Folie 1 Minute in strömendem Dampf bei 1000 C geschäumt. Man erhält eine glatte, elastische, feinporige Folie mit dem Raumgewicht 28 plI.0.75 part of pentane is stirred in and this solution is poured into the usual way a slide. After the solvent has evaporated through storage the film is foamed in flowing steam at 1000 ° C. for 1 minute in the air. You get a smooth, elastic, fine-pored film with a density of 28 plI.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1959B0077023 DE1237779B (en) | 1959-09-24 | 1959-09-24 | Process for the production of foamed foils from thermoplastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1959B0077023 DE1237779B (en) | 1959-09-24 | 1959-09-24 | Process for the production of foamed foils from thermoplastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1237779B true DE1237779B (en) | 1967-03-30 |
Family
ID=6979303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1959B0077023 Pending DE1237779B (en) | 1959-09-24 | 1959-09-24 | Process for the production of foamed foils from thermoplastics |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1237779B (en) |
-
1959
- 1959-09-24 DE DE1959B0077023 patent/DE1237779B/en active Pending
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