SK50693A3 - Moulding compound and process for calendering polyethylene-based films - Google Patents

Moulding compound and process for calendering polyethylene-based films Download PDF

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SK50693A3
SK50693A3 SK50693A SK50693A SK50693A3 SK 50693 A3 SK50693 A3 SK 50693A3 SK 50693 A SK50693 A SK 50693A SK 50693 A SK50693 A SK 50693A SK 50693 A3 SK50693 A3 SK 50693A3
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hdpe
temperature
mixture
din
moulding compound
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SK280122B6 (en
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Karlo Klaar
Manfred Simm
Reiner Schoepe
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Huels Troisdorf
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    • 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
    • C08K5/17—Amines; Quaternary ammonium compounds
    • 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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure

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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)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

The description relates to a moulding compound for calendering synthetic thermoplastic films or plates and a process for producing films or plates of high-density polyethylene (HDPE) or a mixture of HDPE and ethylene-vinyl acetate copolymer (EVA). The moulding compound consists principally of: a1?) a HDPE or a HDPE mixture; or a2?) a mixture of HDPE and EVA; whereby the moulding compound has: b1?) a melting index MFI (190 C/21.6 kg) to DIN 53 735 of < 7 g/10 min; or b2?) a melting index MFI (190 C/21.6 kg) to DIN 53 735 of < 10 g/10 min and contains 0.5 to 3 % wt. bisstearoyl ethylene diamine and/or metal salts of carboxylic acids as processing auxiliaries. The moulding compound is mixed and plasticised at a temperature of about 170 to 180 C, rolled out to a web at a temperature of 175 to 190 C and finally calendered at a temperature of < 190 C.

Description

Fólie alebo dosky z polyolefínov sa v prevažnej miere vyrábajú vytlačovaním. Naproti tomu sa výroba fólií na kalandri, ktorá má pre iné plastické hmoty, ako PVC veľký význam, pri výrobe polyolefínov v praxi nepresadila.Polyolefin films or sheets are predominantly made by extrusion. On the other hand, the production of foil on a calender, which is of great importance for plastics other than PVC, has not been established in practice in the production of polyolefins.

Z DE-C1 32 40 338 je známe kalandrovanie polypropylénovej hmoty, pričom formovacia hmota musí vykazovať definované množstvo stabilizátorov a pomocných prostriedkov pre spracovanie a polypropylén musí vykazovať určitý tavný index (MFI), ktorý nesmie byť nižší ako určitá minimálna hodnota.DE-C1 32 40 338 discloses the calendering of a polypropylene mass, wherein the molding mass must have a defined amount of stabilizers and processing aids and the polypropylene must have a certain melt index (MFI) which must not be less than a certain minimum value.

Spis DE Aí 30 32 851 sa dotýka podobného spôsobu pre zmes pozostávajúcu z polypropylénu s maximálne 25 % polyetylénu.DE-A-30 32 851 relates to a similar process for a mixture consisting of polypropylene with a maximum of 25% polyethylene.

z AT-PS 211 040 je známe.., že sa z polyolefínov môžu získať pri použití kalandra fólie alebo dosky vtedy, keď sa povrchy všetkých válcov kalandra udržujú na teplote nad teplotou topenia kryštálltu, každý nasledujúci válec kalandra sa prevádzkuje oproti predchádzajúcemu minimálne v pomere predstihu 1,1=1 a pracovné podmienky na kalandre sa tak zladia, aby , miesiace telesá tvoriace sa pred medzerami medzi válcami rotovali do seba. Tento spôsob je v prvej rade určený pre polyetylén, pričom zrejme vznikajú problémy, lebo sa doporučovali odťahovacie válce s gumovým obkladom. Okrem toho vykazujú takto vyrobené fólie veľké monoaxiálne pretiahnutie ako aj špatnú kvalitu povrchu. S ohľadom na veľký sklon k lepivosti polyetylénu a nízkej viskozite taveniny pri teplote spracovania sa tento spôsob nemohol v praxi presadiť.it is known from AT-PS 211 040 that polyolefins can be obtained by using a film calender or board when the surfaces of all calender rolls are maintained at a temperature above the crystalline melting point, each successive calender roll being operated at least in relation to the previous calender 1.1 = 1, and the working conditions on the calender are aligned so that the kneading bodies forming in front of the gaps between the rolls rotate together. This method is primarily intended for polyethylene, and problems appear to arise because rubber lining rollers are recommended. In addition, the films thus produced exhibit a large monoaxial elongation as well as poor surface quality. Due to the high tendency to tacky polyethylene and low melt viscosity at processing temperature, this process could not be enforced in practice.

Úlohou predloženého vynálezu je preto dať k dispozícii formovaciu hmotu poprípade spôsob výroby fólií na bázi polyetylénu kalandrovaním, pričom by bolo možné vyrobiť reprodukovateľné kvalitatívne vysoko hodnotné fól(ie s dobrými povrchovými vlastnosťami a malým monoaxiálnym pretiahnutím.It is therefore an object of the present invention to provide a molding composition or a process for the production of polyethylene-based films by calendering, whereby it is possible to produce reproducible qualitatively high-value films ( i.e. with good surface properties and low monoaxial elongation).

Podstata vynálezuSUMMARY OF THE INVENTION

Vynález rieši túto úlohu znakami patentového nároku 1 popr í páde 5.The invention solves this problem by the features of claim 1 or case 5.

Formovacia hmota použitá podľa vynálezu vykazuje pre polyetylén extrémne nízky tavný index MFI/190 °C/21,6 kg / ktorý je < ako 7 g/10 min as výhodou < ako 6 g/10 min. Prídavkom 0,5 až 3 % hmôt. bisstearoyletylendiaminu a/alebo kovových solí karboxylových kyselín ako pomocných prostriedkovThe molding composition used according to the invention exhibits an extremely low melt index MFI (190 ° C / 21.6 kg) which is < 7 g / 10 min and preferably < 6 g / 10 min for polyethylene. Addition of 0.5 to 3% by weight. bisstearoylethylenediamine and / or metal salts of carboxylic acids as adjuvants

Κ·'/Λ:Λ “·· ·' pre spracovanie sa môže tavný index zvýšiť maximálne na 10 g/10 min. Obzvlášť dobré povrchy sa dosiahnu, keď formovacia hmota vykazuje tavný index /190 °C/21,6 kg / < 6g/10 min a obsah 0,5 až 3 % hmôt. bisstearoyletylendiaminu a/alebo kovo« vých solí karboxylových kyselín, najmä kalciumstearátu, ako pomocných prostriedkov pre spracovanie. S výhodou sa používa bisstearoyletyléndiamin.· Κ '/ Λ: Λ "· · ·" processing may melt index to increase to a maximum of 10 g / 10 min. Particularly good surfaces are obtained when the molding composition exhibits a melt index (190 ° C) of 21.6 kg / <6 g / 10 min and a content of 0.5 to 3% by weight. bisstearoylethylenediamine and / or metal salts of carboxylic acids, in particular calcium stearate, as processing aids. Preferably bisstearoylethylenediamine is used.

Formovacia hmota môže ďalej vykazovať napríklad klzné prostriedky, stabilizátory, plnivá a ochranné prostriedky proti vznieteniu, pričom prednosť majú formovacie hmoty bez plniva / obsah plniva < 10 % hmôt./.The molding composition may further comprise, for example, glidants, stabilizers, fillers and flame retardants, with molding compositions without a filler (filler content <10% by weight) being preferred.

Pri výhodnom spôsobe sa formovacia hmota miesi a plastifikuje pri teplote asi 170 až 180 °C, a potom sa pri teplote 175 až 190 °C vyválcuje na vrstvu zmesi opásanej na “'^^'válcl a potom sa pri teplote < 19 °C kalandruje.In a preferred method, the molding composition is blended and plasticized at a temperature of about 170-180 ° C, and then rolled at a temperature of 175-190 ° C to a layer of a mixture wrapped on a roll and then calendered at a temperature of <19 ° C. .

Pomocou spôsobu podľa vynálezu je umožnené vyrobiť polyetylénové fólie bez plniva kalandrovaním, s dobrými povrchami bez monoaxiálneho pretiahnutia. Poprípade môžu kalandrované polyetylénové fólie, bez plniva alebo s plnivom, obsahovať antioxidanty, UV-absorbéry, ochranné prostriedky proti vznieteniu - aby bolo urobené , za dosť zvláštnym požiadavkám. Je tiež prirodzene možné vyrobiť pomocouBy the method according to the invention it is possible to produce filler-free polyethylene films by calendering, with good surfaces without monoaxial stretching. Alternatively, the calendered polyethylene films, with or without filler, may contain antioxidants, UV absorbers, flame retardants - to do so, under rather special requirements. It is also naturally possible to produce by means of

•. íú ! pigmentov f arebnó fólie.•. íú ! pigments and foil films.

Výhodná oblasť použitia polyetylénových fólií bez plniva sú izolácie pri zemných prácach vodných stavieb pre ochranné podzemnej vode, ako aj k utesneniu zberných opatrenia proti ván a zberných ohrozuje voda.A preferred field of application of filler-free polyethylene films is waterproofing for water works for protective groundwater, as well as sealing of collecting measures against baths and collecting water endangers.

priestorov pri skladovaní látiek, ktoréstorage facilities for substances which:

Výhodná oblasť použitia pre kalandrované polyetylénové fólie s plnivom sú obaly, obaly na spisy, obloženie, atď.Preferred fields of application for calendered polyethylene foils with filler are packings, file covers, linings, etc.

Spracovanie podľa vynálezu sa vykonáva s výhodou tým spôsobom, že sa hmota jednotlivých zložkách napríklad zmiešava pri zahriatí po alebo ako predzmes v miesiacom stroji, lisovacom miesiacom stroju alebo závitovkovom miesiacom stroju s dvoma hriadeliami, až je hmota cestovitá a teplota hmoty je asi 175 až 185 °C. Táto hmota sa potom pri druhom plášti fikačnom kroku tiahne na válcoch medzérou medzi válcami pri vytvorení vrstvy zmesi opásanej na válci, pričom válce vykazujú teplotu 170 až 190 °C, b výhodou aspoň 180 °C. Tieto dobre plast i fikované, homogénne vrstvy opásané na válci sa potom privádzajú ku kalandru, pričom by kalander mal vykazovať aspoň štyri válce, ktoré môžu byť usporiadané v známom tvare I, L, F alebo Z.The processing according to the invention is preferably carried out in that the mass of the individual components is, for example, mixed when heated after or as a premix in a mixer, press mixer or twin-screw screw mixer until the mass is crust and the mass temperature is about 175 to 185 C. This mass is then pulled on the rollers by a gap between the rollers in a second jacket of the felling step to form a layer of a roll wrap composition, the rollers having a temperature of 170 to 190 ° C, preferably at least 180 ° C. These well-plasticized, homogeneous layers wrapped on the roll are then fed to a calender, the calender having at least four rolls which can be arranged in a known I, L, F or Z shape.

Válce kalandra majú, videné v smere práce, s výhodou mierne klesajúcu teplotu, pričom prvý podávacie válce by mali vykazovať najvyäiu teplotu, s výhodou 180 až 200 °C, zatiaľ čo posledný válec kalandra by mal mať o 20 až 30 °C nižšiu teplotu, lebo tento slúži v podstate iba k hladeniu a kalibrá. c i i .The calender rolls, seen in the working direction, preferably have a slightly decreasing temperature, wherein the first feed rolls should have the highest temperature, preferably 180 to 200 ° C, while the last calender roll should be 20 to 30 ° C lower, for this is essentially only for stroking and calibers. c i i.

Spôsobom podľa vynálezu sa môžu s výhodou vyrobiť fólie s hrúbkou 0,2 až 2,0 mm, pričom odťahová rýchlosť válcov a tým rýchlosť výroby umožní dosiahnuť minimálnp 10 m/min a viac, v závislosti na hrúbke fólie.Advantageously, films having a thickness of 0.2 to 2.0 mm can be produced by the method according to the invention, whereby the draw-off speed of the rolls and thus the production speed makes it possible to achieve a minimum of 10 m / min or more, depending on the film thickness.

Príklady vyhotovenia vynálezuDETAILED DESCRIPTION OF THE INVENTION

V ďalej uvedených príkladoch, reprodukovaných v tabuľke, sa hmota mieša zo zložiek a plášti fikuje sa v závitovkovom miesiči, až do dosiahnutia teploty hmoty 185 °C. Potom sa plášti fikát tiahne na dvojválcovom zariadení, ktorého válce sú zahriate na teplotu 180 až 185 °C, pri vytvorení vrstvy zmesi '••'''AíWWsW ''opásané j na válcoch a potom sa kalandru j e na štvorválcovom zariadení na 1 mm hrubú fóliu, pričom prvé dva válce vykazujú teplotu 195 °C, tretí válec teplotu 180 °C a štvrtý válec teplotu 175 °C.In the following examples reproduced in the table, the mass is mixed from the ingredients and the sheath is fed in a screw mixer until the mass temperature reaches 185 ° C. Then, the filament shells are drawn on a two-roll machine whose rolls are heated to a temperature of 180 to 185 ° C, forming a layer of ''•''' AWWsW '' wrapped on rolls, and then the calender is on a four-roll machine for 1 mm thick. The first two rolls have a temperature of 195 ° C, the third roll has a temperature of 180 ° C and the fourth roll has a temperature of 175 ° C.

Ako termoplasty boli použitéThermoplastics were used

HDPE1: HDPE1: polyetylén s veľkou hustotou, tavným Indexom MFI ../. 190 °C/ g/10 min /LupolenR 52 61 Z/ ;high density polyethylene, melt index MFI ../. 190 ° C (g / 10 min) Lupolene R 52 61 Z); s extrémne malým 21,6 kg / asi 0,5 with extremely small 21.6 kg / about 0.5 HDPE2 = HDPE2 = polyetylén s veľkou hustotou, °C/21,6 kg / 16 g/10 min; high density polyethylene, ° C / 21.6 kg / 16 g / 10 min; s nízkym MFI / 190 with low MFI / 190 EVA = EVA = kopolymér ety1énviny1acetátu f dielu/ExcoreneR AG 0548;ethylene vinyl acetate copolymer / Excorene R AG 0548; s 18 % hmôt. VA-po- with 18% by weight. VA Inter-

ä 4ä 4

.. Ako klzné prostriedky boli použité blsstearoyl etyléndiamln /HostalubR FA1/ poprípade kalciumstearát /CeasitR 1/. V príklade 10 bolo pridané 21 % hmôt. a1 umi niumhydroxidu /HartinalR 0L 104 C/.Blsstearoyl ethylenediamine (Hostalub R FA1) and calcium stearate (Ceasit R 1) were used as glidants. In Example 10, 21 wt% was added. Aluminium hydroxide (Hartinal R 0L 104 C).

f··f · ·

Tabuľkatable

jj « jj « pr í - k 1 ad at - k 1 ad pod i e 1 HDPE1* 1 /%hmot/below 1 HDPE1 * 1 /% w / pod i e 1 HDPE2*2 under 1 HDPE2 * 2 pod i e 1 EVA”3 under 1 EVA ” 3 pod i e 1 klz- ného pros - triedku /%hmot/ pod i e 1 klz- Joint pros - a composition to /% W / podiel pi - n i va Ahmot/ part pi - n i va Ahmo / MFI /190 21,6/ for- movacia hmota /g/ 10 min/ MFI / 190 21.6 / for- Movac mass / g / 10 min / výsledok kalan- drovan i a the result kalan- drovan i a 1 1 99 99 lx 4 l x 4 0, 5 0, 5 veľmi very dobrý good 2 2 99 99 lx 4l x 4 16 16 ápatný in poor 3 3 10 10 89 89 jx 4 jx 4 12 12 špatný bad 4 4 20 20 79 79 lx 4 l x 4 9 9 uspoko- satisfactory j i vý j i vý 5 5 30 30 69 69 lx 4 l x 4 6 6 veľm i very dobrý good 6 6 30 30 69 69 1 x 5 1 x 5 6 6 dobrý good 7 7 30 30 70 70 6 6 uspoko- satisfactory j i vý j i vý 8 8 50 50 49 49 lx 4 l x 4 6, 5 6, 5 veľmi very dobrý good 9 9 50 50 50 50 6, 5 6, 5 uspoko- satisfactory j i vý j i vý 10 10 8 8 70 70 lx 4 l x 4 21x 6 21 x 6 6 6 ve ľm i very i i and and dobrý good j i j and * 1 * 1 Lupo1enR Lupo1en R 5261 Z 5261 Z x 4 x 4 HostaluJbR FA1HostJJ R FA1 ; ; x 2 x 2 Vestolen estolen R AG 0548 R AG 0548 x 5 x 5 Ceas i tR Ceas It R 1 ka1ciumstearát 1 calcium stearate t í T s x 3 x 3 Escorene Escorene R AG 0548 R AG 0548 x 6 x 6 Márt inal Márt inal R ,0L 104 C R , 104L 18 % hmôt. 18% by weight. a1 um i n i umhydrox i d a1 um i n umhydrox i d

/’/zWé'- <75/ ´ / zWé'- <75

Claims (6)

1. Formovacia hmota ku kalandrovaniu fólií alebo dosiek 2 termoplastu, vyznačujúca sa tým, že termoplast pozostáva aspoň prevažne z al/ HDPE poprípade 2mesi HDPE alebo a2/ zmesi pozostávajúcej z HDPE a EVA a formovacia hmota vykazuje bl/ tavný index MFI /190 °C/21,6 kg/ podľa DIN 53 735 < 7g/10 min alebo b2/ tavný index MFI /190 °C/21,6 kg/ podľa DIN 53 735 < 10 g/10 min a obsah 0,5 až 3 % hmôt. bisstearoyletylendi am i n a/alebo kovových solí karboxylových kyselín ako pomocného prostriedku pre spracovanie.A molding material for calendering thermoplastic foils or sheets 2, characterized in that the thermoplastic consists at least predominantly of α1 / HDPE or 2 months of HDPE or α2 / mixture consisting of HDPE and EVA and the molding composition exhibits a melt index MFI / 190 ° C / 21.6 kg / to DIN 53 735 <7g / 10 min or b2 / melt index MFI / 190 ° C / 21.6 kg / to DIN 53 735 <10 g / 10 min and a content of 0.5 to 3% by weight . bisstearoylethylenediamine and / or metal salts of carboxylic acids as processing aids. 2. Formovacia hmota podľa nároku 1, vyznačujúca sa tým, že vykazuje tavný index /190 °C/21,6 kg/ < 6 g/10 min a obsah 0,5 až 3 % hmôt. bisstearoyletyléndiaminu a/alebo kovových solí karboxylových kyselín ako pomocné prostriedky pre spracovani e.Molding composition according to claim 1, characterized in that it has a melt index (190 ° C) of 21.6 kg / <6 g / 10 min and a content of 0.5 to 3% by weight. bisstearoylethylenediamine and / or metal salts of carboxylic acids as processing aids e. 3. Formovacia hmota podľa jedného z nárokov 1 alebo 2, vyznačujúca sa tým, že obsah plniva robí < 10 % hmôt.Molding material according to either of Claims 1 and 2, characterized in that the filler content is <10% by weight. 4. Formovacia hmota podľa jedného z nárokov 1 alebo 2, vyznačujúca sa tým, že formovacia hmota obsahuje až 30 % hmôt. a1 um in iumfydroxidu ako plnivo.Molding composition according to one of claims 1 or 2, characterized in that the molding composition contains up to 30% by weight. and 1 µm in iumphydroxide as a filler. 5. Spôsob výroby fólii alebo dosiek z HDPE poprípade zmesi pozostávajúcej z HDPE a EVA, vyznačujúci sa tým, že sa kalandruje formovacia hmota, pozostávajúca prevažne z al/ HDPE poprípade zmesi HDPE alebo a2/ zmesi HDPE a EVA, pričom formovacia hmota vykazuje bl/ tavný index MFI /190 °C/21,6 kg/ podľa DIN 53 735 < 7g/10 min alebo b2/ tavný index MFI /190 °C/21,6 kg/ podľa DIN 53 735 < 10 g/10 min a obsah 0,5 až 3 % hmôt. bisstearoy1 etylendiamin a/alebo kovových solí karboxylových kyselín ako pomocné prostriedky pre spracovanie.5. A process for the manufacture of a HDPE film or sheet or a mixture of HDPE and EVA, characterized in that a molding composition consisting predominantly of a1 / HDPE or a mixture of HDPE or a2 / a mixture of HDPE and EVA is calendered; melt index MFI / 190 ° C / 21.6 kg / to DIN 53 735 <7g / 10 min or b2 / melt index MFI / 190 ° C / 21.6 kg / to DIN 53 735 <10 g / 10 min and content 0.5 to 3% by weight. bisstearoyl ethylenediamine and / or metal salts of carboxylic acids as processing aids. 6. Spôsob podľa nároku 5, vyznačujúci sa tým, že sa formovacia hmota miesi a plášti fikuje pri teplote asi 170 až 180 °C, potom sa vyválcuje pri teplote 175 až 190 °C pri vytvorení vrstvy zmesi opásanej na válcoch a potom sa pri teplote <190 °C kalandruje.The method of claim 5, wherein the molding composition is mixed and sheathed at a temperature of about 170 to 180 ° C, then rolled at a temperature of 175 to 190 ° C to form a layer of compound wrapped on rolls and then at a temperature of <190 ° C calendered.
SK506-93A 1990-12-21 1991-12-13 Process for the production of foils or plates out of a moulding compound SK280122B6 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4041453A DE4041453A1 (en) 1990-12-21 1990-12-21 SHAPE DIMENSIONS AND METHOD FOR CALENDARING FILMS BASED ON POLYETHYLENE
PCT/EP1991/002403 WO1992011315A1 (en) 1990-12-21 1991-12-13 Moulding compound and process for calendering polyethylene-based films

Publications (2)

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SK50693A3 true SK50693A3 (en) 1993-10-06
SK280122B6 SK280122B6 (en) 1999-08-06

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SK506-93A SK280122B6 (en) 1990-12-21 1991-12-13 Process for the production of foils or plates out of a moulding compound

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AT (1) ATE151798T1 (en)
CZ (1) CZ283372B6 (en)
DE (2) DE4041453A1 (en)
DK (1) DK0563211T3 (en)
ES (1) ES2099817T3 (en)
GR (1) GR3024072T3 (en)
HU (1) HU214152B (en)
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DE9404700U1 (en) * 1994-03-19 1995-07-20 Ewald Dörken AG, 58313 Herdecke Dimpled sheet for construction purposes
KR102358766B1 (en) * 2020-05-22 2022-02-04 한화토탈 주식회사 Polyethylene resin composition and separator for secondary battery produced therefrom

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HU214152B (en) 1998-01-28
CZ93493A3 (en) 1994-01-19
EP0563211B1 (en) 1997-04-16
ES2099817T3 (en) 1997-06-01
DE59108669D1 (en) 1997-05-22
ATE151798T1 (en) 1997-05-15
WO1992011315A1 (en) 1992-07-09
CZ283372B6 (en) 1998-04-15
GR3024072T3 (en) 1997-10-31
HU9301806D0 (en) 1993-09-28
SK280122B6 (en) 1999-08-06
TW201320B (en) 1993-03-01
DE4041453A1 (en) 1992-06-25
EP0563211A1 (en) 1993-10-06
HUT66615A (en) 1994-12-28
DK0563211T3 (en) 1997-05-20

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Effective date: 20091213