NO820687L - ANTI-LOCKING POLYETHYLENE MATERIALS AND MOVIES MADE FROM THE SAME. - Google Patents
ANTI-LOCKING POLYETHYLENE MATERIALS AND MOVIES MADE FROM THE SAME.Info
- Publication number
- NO820687L NO820687L NO820687A NO820687A NO820687L NO 820687 L NO820687 L NO 820687L NO 820687 A NO820687 A NO 820687A NO 820687 A NO820687 A NO 820687A NO 820687 L NO820687 L NO 820687L
- Authority
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- Norway
- Prior art keywords
- material according
- talc
- ethylene
- ethylene polymer
- ppm
- Prior art date
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- 229920000573 polyethylene Polymers 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 title claims description 32
- -1 POLYETHYLENE Polymers 0.000 title description 6
- 239000004698 Polyethylene Substances 0.000 title description 6
- 239000000454 talc Substances 0.000 claims abstract description 15
- 229910052623 talc Inorganic materials 0.000 claims abstract description 15
- 239000011888 foil Substances 0.000 claims description 14
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 8
- 239000005977 Ethylene Substances 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 229920001519 homopolymer Polymers 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 125000005250 alkyl acrylate group Chemical group 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 235000021122 unsaturated fatty acids Nutrition 0.000 claims description 2
- 150000004670 unsaturated fatty acids Chemical group 0.000 claims description 2
- 229920001567 vinyl ester resin Polymers 0.000 claims description 2
- 150000002734 metacrylic acid derivatives Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 235000012239 silicon dioxide Nutrition 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 3
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 239000002981 blocking agent Substances 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 235000021357 Behenic acid Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- VXNZUUAINFGPBY-UHFFFAOYSA-N ethyl ethylene Natural products CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Medicinal Preparation (AREA)
- Pens And Brushes (AREA)
- Dental Preparations (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Denne oppfinnelse angår polyethylenmaterialer med antiblokkingegenskaper, som er anvendelige for fremstilling av folier. This invention relates to polyethylene materials with anti-blocking properties, which are useful for the production of foils.
Folier av ethylenpolymer har middelmådige glideegen-skaper, hvilket gjør dem vanskelige å anvende i automatisk produksjonsutstyr. De er også kjennetegnet ved en tendens til å motstå adskillelse, som følge av en adhesjonskraft, hvilket gjør dem vanskelige å håndtere. Glidekreftene og adhesjonskreftene som gjør seg gjeldende ved slike folier, Foils of ethylene polymer have mediocre sliding properties, which makes them difficult to use in automatic production equipment. They are also characterized by a tendency to resist separation, as a result of an adhesion force, which makes them difficult to handle. The sliding forces and adhesion forces that apply to such foils,
og som er orientert vinkelrett på hverandre, er nært be-slektede og er årsaken til mange problemer som oppstår ved industriell anvendelse av polyethylenfilmer. and which are oriented at right angles to each other, are closely related and are the cause of many problems that arise in the industrial use of polyethylene films.
For å forbedre anvendeligheten av ethylenpolymererTo improve the applicability of ethylene polymers
er det kjent å innlemme et glidemiddel og antiblokkingmiddel i polymerene før ekstruderingen. Således beskrives der i britisk patentskrift nr. 822 498 polyethylenmaterialer som inneholder fra 0,1 til 5 vekt% av et inert fyllstoff med partikkelstørrelse fra 0,02 til 50 um. I fransk patent- it is known to incorporate a lubricant and anti-blocking agent into the polymers prior to extrusion. Thus, British patent document No. 822 498 describes polyethylene materials containing from 0.1 to 5% by weight of an inert filler with a particle size of from 0.02 to 50 µm. In French patent-
skrift nr. 1 204 623 beskrives materialer av forgrenet polyethylen som inneholder inntil 0,5 vekt% av et silicium-holdig produkt med partikkelstørrelse mindre enn 1 um. I fransk patentskrift nr. 1 235 862 beskrives polyethylenmaterialer som inneholder fra 0,10 til 1,5 vekt% siliciumdioxyd med partikkelstørrelse mellom 1 og 10 um. document no. 1 204 623 describes materials of branched polyethylene which contain up to 0.5% by weight of a silicon-containing product with a particle size of less than 1 µm. In French patent document No. 1,235,862, polyethylene materials are described which contain from 0.10 to 1.5% by weight of silicon dioxide with a particle size between 1 and 10 µm.
Målsetningen med den foreliggende oppfinnelse er å forbedre egenskapene, spesielt de optiske egenskaper, av folier fremstilt av ethylenpolymerer, ved å velge et bestemt antiblokkingmiddel, nemlig talkum. The aim of the present invention is to improve the properties, especially the optical properties, of foils made from ethylene polymers, by choosing a specific anti-blocking agent, namely talc.
Oppfinnelsen angår således ethylenpolymermaterialerThe invention thus relates to ethylene polymer materials
som inneholder fra 200 til 2500 ppm talkum. Betegnelsen "ethylenpolymer" er ment å skulle omfatte såvel ethylenhomopolymerer som copolymerer av ethylen med minst én comonomer valgt blant carboxylsyrevinylestere, såsom vinylacetat, carbonmonoxyd, maleinsyreanhydrid, og alkylacrylater og -methacrylater i hvilke alkylgruppen har fra 1 til 6 carbonatomer, idet polymerene er fremstilt under høyt trykk (over 1000 bar) i nærvær av en fri-radikal-initiator. Betegnelsen "ethylenpolymer" er også ment å skulle omfatte copolymerer av ethylen med minst ett olefin med 3-8 carbon- which contains from 200 to 2500 ppm talc. The term "ethylene polymer" is intended to include both ethylene homopolymers and copolymers of ethylene with at least one comonomer selected from carboxylic acid vinyl esters, such as vinyl acetate, carbon monoxide, maleic anhydride, and alkyl acrylates and -methacrylates in which the alkyl group has from 1 to 6 carbon atoms, the polymers being prepared under high pressure (over 1000 bar) in the presence of a free-radical initiator. The term "ethylene polymer" is also intended to include copolymers of ethylene with at least one olefin of 3-8 carbon
atomer, hvilke copolymerer er fremstilt enten under anvendelse av høyt trykk (over 300 bar) og høy temperatur (over 160°C) atoms, which copolymers are prepared either using high pressure (above 300 bar) and high temperature (above 160°C)
i nærvær av en fri-radikal-initiator eller et katalysator-system av Ziegler-typen, eller i oppløsning eller suspen-sjon i et hydrocarbon under moderat trykk (under 100 bar) og ved moderat temperatur. Ethylenpolymerene som anvendes innen-for rammen av oppfinnelsen, har vanligvis en smelteindeks på mellom 0,2 og 10°C/min. og en tetthet på mellom 0,905 og in the presence of a free-radical initiator or a catalyst system of the Ziegler type, or in solution or suspension in a hydrocarbon under moderate pressure (below 100 bar) and at moderate temperature. The ethylene polymers used within the scope of the invention usually have a melting index of between 0.2 and 10°C/min. and a density of between 0.905 and
3 3
0,9 35 g/cm . 0.9 35 g/cm .
Talkumet som kan anvendes i henhold til oppfinnelsen, er et mineral av lamellær konfigurasjon, utvunnet i stenbrudd, som er tilstede i krystallinske skiferbergarter, og som har den kjemiske formel 3MgO.4Si02.H20. The talc which can be used according to the invention is a mineral of lamellar configuration, extracted in quarries, which is present in crystalline slate rocks, and which has the chemical formula 3MgO.4Si02.H20.
Det kan også inneholde mindre mengder av andre metalloxyder, såsom alumihiumoxyd eller jernoxyd. Talkumet som anvendes i henhold til oppfinnelsen, har fortrinnsvis en midlere partikkelstørrelse i området fra 1 til 5 um. It may also contain smaller amounts of other metal oxides, such as aluminum oxide or iron oxide. The talc used according to the invention preferably has an average particle size in the range from 1 to 5 µm.
Materialene ifølge oppfinnelsen kan også eventuelt inneholde inntil 1500 ppm av et konvensjonelt glidemiddel, såsom et umettet fettsyreamid med minst 8 carbonatomer. Eksempler på glidemidler er amidene av stearinsyre, oljesyre, pal-mitinsyre, euricinsyre, myristinsyre, behensyre og laurinsyre. The materials according to the invention can also possibly contain up to 1500 ppm of a conventional lubricant, such as an unsaturated fatty acid amide with at least 8 carbon atoms. Examples of lubricants are the amides of stearic acid, oleic acid, palmitic acid, euricic acid, myristic acid, behenic acid and lauric acid.
Materialene ifølge oppfinnelsen oppviser bemerkelses-verdige egenskaper sammenlignet med materialer som inneholder en tilsvarende mengde kiselsyre. De optiske egenskaper av folier fremstilt ut fra disse materialer bibeholdes eller forbedres sogar, spesielt ugjennomsiktigheten. Antiblokking-egerskapene av disse folier forbedres, både ved normale om-givelsestemperaturer (20°C) og ved forhøyet temperatur (50°C). Materialene ifølge oppfinnelsen gjør det således mulig å oppnå like gode materialegenskaper ved anvendelse av en mindre mengde additiv. Dessuten er friksjonskoeffisienten for folier fremstilt av disse materialer meget sterkt forbedret, både på innsiden og på utsiden, sammenlignet med materialene inneholdende en tilsvarende mengde siliciumdioxyd. The materials according to the invention exhibit remarkable properties compared to materials containing a corresponding amount of silicic acid. The optical properties of foils produced from these materials are maintained or even improved, especially the opacity. The anti-blocking properties of these foils are improved, both at normal ambient temperatures (20°C) and at elevated temperature (50°C). The materials according to the invention thus make it possible to achieve equally good material properties by using a smaller amount of additive. Moreover, the coefficient of friction for foils made from these materials is greatly improved, both on the inside and on the outside, compared to the materials containing a similar amount of silicon dioxide.
Materialene ifølge oppfinnelsen fremstilles ved at bestanddelene dispergeres jevnt i ethylenpolymeren, i en dertil egnet blander, enten direkte i den ønskede mengde eller via en blanding med høyere konsentrasjon. De er an vendelige for fremstilling av folier ved blåseekstrudering eller coekstrudering etter de konvensjonelle metoder. Slike folier har vanligvis en tykkelse av mellom 7 og 150 um. The materials according to the invention are produced by dispersing the components evenly in the ethylene polymer, in a suitable mixer, either directly in the desired amount or via a mixture with a higher concentration. They are suitable for the production of foils by blow extrusion or coextrusion according to the conventional methods. Such foils usually have a thickness of between 7 and 150 µm.
De følgende eksempler illustrerer oppfinnelsen. The following examples illustrate the invention.
Eksempler 1 - 5Examples 1 - 5
Homogene materialer inneholdende 250 ppm oleamid og, når dette ønskes, siliciumdioxyd eller talkum, fremstilles i en blander ut fra en ethylenhomopolymer med en smelteindeks på l,2°C/min. målt i henhold til ASTM Standard Specification D 1238-73 og en tetthet på 0,920 g/cm 3, målt Homogeneous materials containing 250 ppm oleamide and, when desired, silicon dioxide or talc, are prepared in a mixer from an ethylene homopolymer with a melt index of 1.2°C/min. measured according to ASTM Standard Specification D 1238-73 and a density of 0.920 g/cm 3, measured
i henhold til ASTM Standard Specification D 2839. Det i eksempler 2 og 4 anvendte siliciumdioxyd er et amorft, syntetisk siliciumdioxyd erholdt ved en våtprosess. Talkumet som anvendes i eksempler 3 og 5, er et produkt med en midlere partikkelstørrelse på 3 um, som leveres av Société des Tales de Luzenac under handelsnavnet "10 MOOS" according to ASTM Standard Specification D 2839. The silicon dioxide used in examples 2 and 4 is an amorphous, synthetic silicon dioxide obtained by a wet process. The talc used in examples 3 and 5 is a product with an average particle size of 3 µm, supplied by the Société des Tales de Luzenac under the trade name "10 MOOS"
De forskjellige materialer ekstruderes så til folier av tykkelse 30 um. De følgende egenskaper måles for disse filmer: - Klarheten, målt i henhold til ASTM Standard Specification D-1746 og uttrykt i prosent. - Ugjennomsiktigheten, målt i henhold til ASTM Standard The different materials are then extruded into foils of thickness 30 µm. The following properties are measured for these films: - Clarity, measured according to ASTM Standard Specification D-1746 and expressed as a percentage. - The opacity, measured according to the ASTM Standard
Specification D-1003 og uttrykt i prosent.Specification D-1003 and expressed as a percentage.
- Den dynamiske friksjonskoeffisient, målt i hennold til ASTM Standard Specification D-1894 på foliens innside og - The dynamic coefficient of friction, measured in hennolds to ASTM Standard Specification D-1894 on the inside of the foil and
utside.exterior.
- Blokkingegenskapene ved omgivelsenes temperatur (20°C), uttrykt i gram og målt i henhold til ASTM Standard Speci-cation D-3354. - The blocking properties at ambient temperature (20°C), expressed in grams and measured according to ASTM Standard Specification D-3354.
Disse egenskaper er oppført i tabell I nedenfor. Som det vil forståes, er eksempler 1, 2 og 4 sammenligningseksempler. These properties are listed in Table I below. As will be appreciated, Examples 1, 2 and 4 are comparative examples.
Eksempler 6- 9 Examples 6-9
Homogene materialer inneholdende kiselsyre eller talkum og, når dette ønskes, oleamid som et glidemiddel, fremstilles i en blander ut fra den i de foregående eksempler anvendte ethylenpolymer. Siliciumdioxydet og talkumet er de samme som i de foregående eksempler. De forskjellige materialer ekstruderes for fremstilling av folier av tykkelse 30 pm, for hvilke blokkingegenskapene ved 50°C, uttrykt i gram, måles i henhold til den ovenfor omtalte metode. Homogeneous materials containing silicic acid or talc and, when desired, oleamide as a lubricant, are produced in a mixer from the ethylene polymer used in the preceding examples. The silicon dioxide and the talc are the same as in the previous examples. The various materials are extruded to produce foils of thickness 30 µm, for which the blocking properties at 50°C, expressed in grams, are measured according to the above-mentioned method.
De anvendte mengder av additiver og likeledes blokkingegenskapene er angitt i tabell II nedenfor. Som det vil forståes, er eksempler 6 og 8 sammenligningseksempler. The amounts of additives used and likewise the blocking properties are indicated in Table II below. As will be appreciated, Examples 6 and 8 are comparative examples.
Eksempel 10 Example 10
Et homogent materiale inneholdende 900 ppm talkum "10 MOOS" og 400 ppm oleamid fremstilles i en blander ut fra en ethylenhomopolymer med en smelteindeks på 3,7°C/min. A homogeneous material containing 900 ppm talc "10 MOOS" and 400 ppm oleamide is prepared in a mixer from an ethylene homopolymer with a melt index of 3.7°C/min.
(bestemt i henhold til ASTM Standard Specification D 1238-73)(determined according to ASTM Standard Specification D 1238-73)
og en tetthet på 0,922 g/cm<3>(bestemt i henhold til ASTM and a density of 0.922 g/cm<3> (determined according to ASTM
Standard Specification D-2839). Dette materiale ekstruderes for dannelse av en folie av tykkelse 55 um, for hvilken den dynamiske friksjonskoeffisient på innerflaten måles (i henhold til ASTM Standard Specification D-1894) og likeledes klarheten ( i henhold tilASTM Standard Specification D-1746) og glansen (i henhold til ASTM Standard Specification D-523). Verdiene for disse egenskaper er som følger: Standard Specification D-2839). This material is extruded to form a film of thickness 55 µm, for which the dynamic coefficient of friction on the inner surface is measured (according to ASTM Standard Specification D-1894) as well as the clarity (according to ASTM Standard Specification D-1746) and the gloss (according to to ASTM Standard Specification D-523). The values for these properties are as follows:
Friksjon: 0,13Friction: 0.13
Klarhet : 56 %Clarity : 56%
Glans : 98 %Gloss : 98%
Eksempler 11- - 13Examples 11- - 13
Homogene materialer inneholdende forskjellige mengder av det i de foregående eksempler anvendte talkum fremstilles i en blander ut fra en ethylen/but-l-en-copolymer med en smelteindeks på l°C/min. (bestemt i henhold til ASTM Standard Specification D 1238-73) og en tetthet på 0,920 g/cm 3 (bestemt i henhold til ASTM Standard Specification D-2839) . Disse materialer ekstruderes til folier av tykkelse 25 um, for hvilke den dynamiske friksjonskoeffisient for . ytterflaten måles (i henhold til ASTM Standard Specification D-189 4) og likeledes blokkingegenskapene ved 70°C (i henhold til ASTM Standard Specification D-3354). Verdiene for disse egenskaper er oppført i tabell III nedenfor. Som det vil forståes, er eksempel 11 et sammenligningseksempel. Homogeneous materials containing different amounts of the talc used in the previous examples are produced in a mixer from an ethylene/but-1-ene copolymer with a melting index of 1°C/min. (determined according to ASTM Standard Specification D 1238-73) and a density of 0.920 g/cm 3 (determined according to ASTM Standard Specification D-2839). These materials are extruded into foils of thickness 25 µm, for which the dynamic friction coefficient of . the outer surface is measured (according to ASTM Standard Specification D-189 4) and likewise the blocking properties at 70°C (according to ASTM Standard Specification D-3354). The values for these properties are listed in Table III below. As will be appreciated, Example 11 is a comparative example.
Claims (10)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8104389A FR2501217B1 (en) | 1981-03-05 | 1981-03-05 | ANTI-LOCKING COMPOSITIONS BASED ON POLYETHYLENE AND FILMS OBTAINED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO820687L true NO820687L (en) | 1982-09-06 |
Family
ID=9255883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO820687A NO820687L (en) | 1981-03-05 | 1982-03-04 | ANTI-LOCKING POLYETHYLENE MATERIALS AND MOVIES MADE FROM THE SAME. |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP0060178B1 (en) |
| JP (1) | JPS57159835A (en) |
| AT (1) | ATE19641T1 (en) |
| AU (1) | AU8112682A (en) |
| BR (1) | BR8201148A (en) |
| CA (1) | CA1196746A (en) |
| CS (1) | CS235533B2 (en) |
| DE (1) | DE3270946D1 (en) |
| FR (1) | FR2501217B1 (en) |
| IE (1) | IE52386B1 (en) |
| IN (1) | IN157645B (en) |
| NO (1) | NO820687L (en) |
| PT (1) | PT74531B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59210961A (en) * | 1983-05-16 | 1984-11-29 | Nippon Petrochem Co Ltd | Resin composition for forming film having blocking resistance |
| JPS60500771A (en) * | 1983-07-15 | 1985-05-23 | ザ ダウ ケミカル カンパニ− | Olefin polymer slip and block additives |
| GB2144750B (en) * | 1983-08-09 | 1987-01-28 | Standard Telephones Cables Ltd | Nucleated plastics dielectrics |
| US4517316A (en) * | 1984-01-24 | 1985-05-14 | Dasurat Enterprises Pte Ltd. | Porous irrigation pipe prepared from particulate elastomer and thermoplastic binder containing controlled moisture content |
| US4560614A (en) * | 1984-12-19 | 1985-12-24 | Mobil Oil Corporation | Non-blocking opaque film |
| JPH05301999A (en) * | 1992-04-27 | 1993-11-16 | Toppan Printing Co Ltd | Transparent sheet |
| BE1011282A3 (en) * | 1997-07-14 | 1999-07-06 | Solvay | Composition based on polyethylene and method for manufacturing shaped objects from the composition. |
| US6500890B2 (en) * | 2000-12-15 | 2002-12-31 | Wellman, Inc. | Polyester bottle resins having reduced frictional properties and methods for making the same |
| US7759449B2 (en) | 2000-12-15 | 2010-07-20 | Wellman, Inc. | Methods for introducing additives into polyethylene terephthalate |
| JP4782944B2 (en) * | 2001-06-01 | 2011-09-28 | 株式会社ブリヂストン | Rubber adhesion inhibitor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB822498A (en) * | 1956-06-01 | 1959-10-28 | Ici Ltd | Polyethylene films |
| US2991264A (en) * | 1957-05-01 | 1961-07-04 | Du Pont | Method of partially crystallizing an alpha-olefin polymer |
| FR1235862A (en) * | 1959-09-16 | 1960-07-08 | Eastman Kodak Co | New polyethylene composition and thin film formed from this composition |
| NL6614081A (en) * | 1965-10-11 | 1967-04-12 | ||
| US3969304A (en) * | 1974-11-27 | 1976-07-13 | National Distillers And Chemical Corporation | Ethylene polymer films |
-
1981
- 1981-03-05 FR FR8104389A patent/FR2501217B1/en not_active Expired
-
1982
- 1982-02-05 IN IN99/DEL/82A patent/IN157645B/en unknown
- 1982-02-08 CA CA000395727A patent/CA1196746A/en not_active Expired
- 1982-02-26 EP EP82400332A patent/EP0060178B1/en not_active Expired
- 1982-02-26 AT AT82400332T patent/ATE19641T1/en not_active IP Right Cessation
- 1982-02-26 DE DE8282400332T patent/DE3270946D1/en not_active Expired
- 1982-03-03 CS CS821449A patent/CS235533B2/en unknown
- 1982-03-04 AU AU81126/82A patent/AU8112682A/en not_active Abandoned
- 1982-03-04 IE IE484/82A patent/IE52386B1/en unknown
- 1982-03-04 BR BR8201148A patent/BR8201148A/en unknown
- 1982-03-04 PT PT74531A patent/PT74531B/en unknown
- 1982-03-04 NO NO820687A patent/NO820687L/en unknown
- 1982-03-05 JP JP57034999A patent/JPS57159835A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2501217B1 (en) | 1985-12-27 |
| BR8201148A (en) | 1983-01-11 |
| CA1196746A (en) | 1985-11-12 |
| EP0060178A1 (en) | 1982-09-15 |
| FR2501217A1 (en) | 1982-09-10 |
| IE820484L (en) | 1982-09-05 |
| EP0060178B1 (en) | 1986-05-07 |
| AU8112682A (en) | 1982-09-09 |
| JPS57159835A (en) | 1982-10-02 |
| PT74531A (en) | 1982-04-01 |
| IN157645B (en) | 1986-05-10 |
| IE52386B1 (en) | 1987-10-14 |
| DE3270946D1 (en) | 1986-06-12 |
| ATE19641T1 (en) | 1986-05-15 |
| CS235533B2 (en) | 1985-05-15 |
| PT74531B (en) | 1983-11-08 |
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