NO800020L - Fremgangsmaate for aa redusere overflateuregelmessigheter under ekstrudering av etylenpolymerer - Google Patents
Fremgangsmaate for aa redusere overflateuregelmessigheter under ekstrudering av etylenpolymererInfo
- Publication number
- NO800020L NO800020L NO800020A NO800020A NO800020L NO 800020 L NO800020 L NO 800020L NO 800020 A NO800020 A NO 800020A NO 800020 A NO800020 A NO 800020A NO 800020 L NO800020 L NO 800020L
- Authority
- NO
- Norway
- Prior art keywords
- approx
- nozzle
- polymer
- ethylene
- film
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 107
- 238000001125 extrusion Methods 0.000 title claims description 46
- 229920000573 polyethylene Polymers 0.000 title claims description 30
- 230000001788 irregular Effects 0.000 title 1
- 229920000642 polymer Polymers 0.000 claims description 82
- 238000009826 distribution Methods 0.000 claims description 34
- 229920001577 copolymer Polymers 0.000 claims description 33
- 238000002844 melting Methods 0.000 claims description 30
- 230000008569 process Effects 0.000 claims description 30
- 230000008018 melting Effects 0.000 claims description 28
- 239000005977 Ethylene Substances 0.000 claims description 26
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 23
- 239000000155 melt Substances 0.000 claims description 21
- 229930195733 hydrocarbon Natural products 0.000 claims description 15
- 239000004215 Carbon black (E152) Substances 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 239000010408 film Substances 0.000 description 86
- 150000001875 compounds Chemical class 0.000 description 73
- 239000007789 gas Substances 0.000 description 59
- 239000003054 catalyst Substances 0.000 description 58
- 239000012190 activator Substances 0.000 description 50
- 239000002243 precursor Substances 0.000 description 43
- 238000002360 preparation method Methods 0.000 description 34
- 239000002245 particle Substances 0.000 description 33
- 239000012876 carrier material Substances 0.000 description 31
- 239000011347 resin Substances 0.000 description 30
- 229920005989 resin Polymers 0.000 description 30
- 239000010936 titanium Substances 0.000 description 29
- 238000006116 polymerization reaction Methods 0.000 description 28
- 238000004519 manufacturing process Methods 0.000 description 25
- 230000004913 activation Effects 0.000 description 22
- 229920001684 low density polyethylene Polymers 0.000 description 22
- 239000004702 low-density polyethylene Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 20
- 239000000203 mixture Substances 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 17
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 17
- -1 polyethylene Polymers 0.000 description 17
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 16
- 150000003609 titanium compounds Chemical class 0.000 description 16
- 238000002156 mixing Methods 0.000 description 15
- 239000000243 solution Substances 0.000 description 15
- 239000002904 solvent Substances 0.000 description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 150000002430 hydrocarbons Chemical class 0.000 description 11
- 150000002681 magnesium compounds Chemical class 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 10
- 239000000178 monomer Substances 0.000 description 10
- 230000002829 reductive effect Effects 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 8
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 8
- 229910052814 silicon oxide Inorganic materials 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 241000251730 Chondrichthyes Species 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000005243 fluidization Methods 0.000 description 7
- 238000004806 packaging method and process Methods 0.000 description 7
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 230000036961 partial effect Effects 0.000 description 5
- 239000011236 particulate material Substances 0.000 description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 238000010096 film blowing Methods 0.000 description 4
- 229920001519 homopolymer Polymers 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 3
- 125000005907 alkyl ester group Chemical group 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 229920001038 ethylene copolymer Polymers 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 239000002685 polymerization catalyst Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000000518 rheometry Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical group ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 150000004292 cyclic ethers Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- HQWPLXHWEZZGKY-UHFFFAOYSA-N diethylzinc Chemical group CC[Zn]CC HQWPLXHWEZZGKY-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 2
- 150000003752 zinc compounds Chemical class 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- BPIUIOXAFBGMNB-UHFFFAOYSA-N 1-hexoxyhexane Chemical compound CCCCCCOCCCCCC BPIUIOXAFBGMNB-UHFFFAOYSA-N 0.000 description 1
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- 101100496169 Arabidopsis thaliana CLH1 gene Proteins 0.000 description 1
- 241000239290 Araneae Species 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 101100008050 Caenorhabditis elegans cut-6 gene Proteins 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 241000251729 Elasmobranchii Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000002879 Lewis base Substances 0.000 description 1
- 101100044057 Mesocricetus auratus SYCP3 gene Proteins 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 101100237460 Rattus norvegicus Mgll gene Proteins 0.000 description 1
- 101100080600 Schizosaccharomyces pombe (strain 972 / ATCC 24843) nse6 gene Proteins 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000012986 chain transfer agent Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 101150111293 cor-1 gene Proteins 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003000 extruded plastic Substances 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 239000002638 heterogeneous catalyst Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000003898 horticulture Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000007527 lewis bases Chemical class 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- OTCKOJUMXQWKQG-UHFFFAOYSA-L magnesium bromide Chemical compound [Mg+2].[Br-].[Br-] OTCKOJUMXQWKQG-UHFFFAOYSA-L 0.000 description 1
- 229910001623 magnesium bromide Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000037048 polymerization activity Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005029 sieve analysis Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0063—Density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0072—Roughness, e.g. anti-slip
- B29K2995/0073—Roughness, e.g. anti-slip smooth
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/001,932 US4267146A (en) | 1979-01-08 | 1979-01-08 | Method for reducing melt fracture during extrusion of ethylene polymers |
| US06/099,061 US4282177A (en) | 1979-01-08 | 1979-12-12 | Method for reducing sharkskin melt fracture during extrusion of ethylene polymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO800020L true NO800020L (no) | 1980-07-09 |
Family
ID=26669697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO800020A NO800020L (no) | 1979-01-08 | 1980-01-04 | Fremgangsmaate for aa redusere overflateuregelmessigheter under ekstrudering av etylenpolymerer |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US4282177A (cs) |
| EP (1) | EP0015359B1 (cs) |
| AR (1) | AR226049A1 (cs) |
| AT (1) | ATE12470T1 (cs) |
| AU (1) | AU536497B2 (cs) |
| BR (1) | BR8000062A (cs) |
| CA (1) | CA1134579A (cs) |
| DE (1) | DE3070408D1 (cs) |
| DK (1) | DK6680A (cs) |
| EG (1) | EG14717A (cs) |
| ES (1) | ES8100146A1 (cs) |
| FI (1) | FI800042A7 (cs) |
| GR (1) | GR71868B (cs) |
| IL (1) | IL59056A (cs) |
| IN (1) | IN152491B (cs) |
| NO (1) | NO800020L (cs) |
| NZ (1) | NZ192541A (cs) |
| PT (1) | PT70663A (cs) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330501A (en) | 1980-06-30 | 1982-05-18 | Union Carbide Corporation | Method and apparatus for cooling film bubble of low strain hardening polymers |
| US4357291A (en) * | 1980-08-28 | 1982-11-02 | Union Carbide Corporation | Double metering extruder screw and method of extrusion |
| US4348349A (en) * | 1980-10-01 | 1982-09-07 | Union Carbide Corporation | Method for reducing melt fracture during extrusion of a molten narrow molecular weight distribution, linear, ethylene copolymer |
| US4360494A (en) * | 1981-04-01 | 1982-11-23 | Union Carbide Corporation | Process for reducing melt fracture during extrusion of a molten narrow molecular weight distribution, linear, ethylene copolymer |
| US4543399A (en) * | 1982-03-24 | 1985-09-24 | Union Carbide Corporation | Fluidized bed reaction systems |
| US4415711A (en) * | 1982-07-02 | 1983-11-15 | Union Carbide Corporation | Process for forming film from low strain hardening polymers |
| US4447387A (en) * | 1982-09-30 | 1984-05-08 | Union Carbide Corporation | Process for manufacture of tubular film |
| KR850000296A (ko) * | 1983-06-28 | 1985-02-26 | 에드워드 지·그라이어 | 에틸렌 공중합체 압출시 표면 용융파괴의 감소 방법 |
| US4554120A (en) * | 1983-06-28 | 1985-11-19 | Union Carbide Corporation | Process for eliminating surface melt fracture during extrusion of thermoplastic polymers |
| US4522776A (en) * | 1983-06-28 | 1985-06-11 | Union Carbide Corporation | Process for substantially eliminating surface melt fracture when extruding ethylene polymers |
| CA1210917A (en) * | 1983-06-28 | 1986-09-09 | Arakalgud V. Ramamurthy | Process for reducing surface melt fracture during extrusion of ethylene polymers |
| US4552712A (en) * | 1983-06-28 | 1985-11-12 | Union Carbide Corporation | Process for reducing surface melt fracture during extrusion of ethylene polymers |
| US4832897A (en) * | 1984-02-07 | 1989-05-23 | Stamicarbon B.V. | Process for the preparation of blown film |
| NL8502191A (nl) * | 1985-08-06 | 1987-03-02 | Stamicarbon | Werkwijze voor het vervaardigen van vlakfolie. |
| NL8502190A (nl) * | 1985-08-06 | 1987-03-02 | Stamicarbon | Werkwijze voor het vervaardigen van blaasfolie en georienteerde folie. |
| US4713205A (en) * | 1985-09-25 | 1987-12-15 | Mobil Oil Corporation | Method for reducing melt fracture during extrusion of linear polyethylene homopolymers and copolymers by varying the geometry of the die exit face |
| US4753767A (en) * | 1986-04-03 | 1988-06-28 | The Dow Chemical Company | Extrusion apparatus and method |
| US4780264A (en) * | 1987-05-22 | 1988-10-25 | The Dow Chemical Company | Linear low density polyethylene cast film |
| HUT48518A (en) * | 1987-06-03 | 1989-06-28 | Zoltan Balajthy | Process for facilitating processing of thermoplastic polymers |
| US4859398A (en) * | 1987-07-02 | 1989-08-22 | Mobil Oil Corporation | High shear extrusion of linear low density polyethylene |
| US4948543A (en) * | 1989-06-15 | 1990-08-14 | Union Carbide Chemicals And Plastics Company, Inc. | Process for eliminating surface melt fracture during extrusion of thermoplastic polymers |
| US5344714A (en) * | 1992-11-04 | 1994-09-06 | Mobil Oil Corporation | LLDPE composite film free of melt fracture |
| US5718852A (en) * | 1994-05-10 | 1998-02-17 | The Clorox Company | Process controlling a blow molding machine |
| US6245271B1 (en) | 1998-12-18 | 2001-06-12 | Kimberly-Clark Worldwide, Inc. | Reduced die lip buildup extrusion of polymer compositions |
| US6358449B1 (en) | 1999-11-22 | 2002-03-19 | Kimberly-Clark Worldwide, Inc. | Apparatus and method for reducing die accumulation |
| US7955540B2 (en) * | 2007-01-19 | 2011-06-07 | Exxonmobil Chemical Patents Inc. | Extrusion of thermoplastic elastomers |
| US20130319131A1 (en) | 2012-05-31 | 2013-12-05 | Chevron Phillips Chemical Company Lp | Controlling Melt Fracture in Bimodal Resin Pipe |
| WO2017138931A1 (en) * | 2016-02-10 | 2017-08-17 | The Yokohama Rubber Co., Ltd. | Extrusion molding equipment and process for producing cylindrical film |
| CN113784829B (zh) | 2019-05-30 | 2024-07-30 | 陶氏环球技术有限责任公司 | 挤出熔体中无表面破裂的线性低密度聚乙烯（lldpe）的方法 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2332829A (en) * | 1939-10-04 | 1943-10-26 | American Plastics Corp | Process of making casein plastic products and apparatus therefor |
| US3030665A (en) * | 1958-03-05 | 1962-04-24 | Eagleton Sidney Douglas | Refining thermoplastic resins |
| CH426237A (de) * | 1963-11-30 | 1966-12-15 | Basf Ag | Verfahren und Vorrichtung zum kontinuierlichen Herstellen von Profilen aus thermoplastischen Kunststoffen |
| US3382535A (en) * | 1965-04-16 | 1968-05-14 | Western Electric Co | Minimum length extrusion die |
| US3376605A (en) * | 1966-01-27 | 1968-04-09 | Du Pont | Extrusion apparatus |
| GB1441586A (en) * | 1972-07-12 | 1976-07-07 | Ici Ltd | Method for reducing sharkskin on extruded polymeric material |
| US3874837A (en) * | 1972-09-18 | 1975-04-01 | Airco Inc | Die for extrusion of fine grained green carbon |
| US3915616A (en) * | 1972-10-24 | 1975-10-28 | Phillips Petroleum Co | Diverging mandrel extension for extrusion of foamed polymer |
| US3876740A (en) * | 1972-10-27 | 1975-04-08 | Standard Oil Co | Process for improving interior surface smoothness and gloss in foamed tubular extrudates by the use of extrusion die faces of novel geometry |
| US3879158A (en) * | 1973-01-09 | 1975-04-22 | Enrique Schele | Apparatus for extruding thermoplastic annular shapes |
| US3879507A (en) * | 1973-02-26 | 1975-04-22 | Mobil Oil Corp | Method of producing a foam-form flat film or sheet having a more balanced machine and traverse direction strength |
| US3914366A (en) * | 1973-03-05 | 1975-10-21 | Phillips Petroleum Co | Method for forming a parison |
| US3994654A (en) * | 1975-01-02 | 1976-11-30 | Monsanto Company | Die for extruding thermoplastic sheets |
| US4187269A (en) * | 1975-11-17 | 1980-02-05 | The Dow Chemical Company | Extrusion process for reducing melt fracture |
| US4243619A (en) * | 1978-03-31 | 1981-01-06 | Union Carbide Corporation | Process for making film from low density ethylene hydrocarbon copolymer |
-
1979
- 1979-12-12 US US06/099,061 patent/US4282177A/en not_active Expired - Lifetime
- 1979-12-31 IL IL59056A patent/IL59056A/xx unknown
-
1980
- 1980-01-04 NO NO800020A patent/NO800020L/no unknown
- 1980-01-05 GR GR60903A patent/GR71868B/el unknown
- 1980-01-07 NZ NZ192541A patent/NZ192541A/xx unknown
- 1980-01-07 AT AT80100070T patent/ATE12470T1/de active
- 1980-01-07 BR BR8000062A patent/BR8000062A/pt unknown
- 1980-01-07 AR AR279556A patent/AR226049A1/es active
- 1980-01-07 DE DE8080100070T patent/DE3070408D1/de not_active Expired
- 1980-01-07 IN IN26/CAL/80A patent/IN152491B/en unknown
- 1980-01-07 ES ES487498A patent/ES8100146A1/es not_active Expired
- 1980-01-07 PT PT70663A patent/PT70663A/pt unknown
- 1980-01-07 FI FI800042A patent/FI800042A7/fi not_active Application Discontinuation
- 1980-01-07 DK DK6680A patent/DK6680A/da not_active Application Discontinuation
- 1980-01-07 EP EP80100070A patent/EP0015359B1/en not_active Expired
- 1980-01-08 EG EG8017A patent/EG14717A/xx active
- 1980-01-08 CA CA000343277A patent/CA1134579A/en not_active Expired
- 1980-01-08 AU AU54451/80A patent/AU536497B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU5445180A (en) | 1980-07-17 |
| US4282177A (en) | 1981-08-04 |
| EP0015359B1 (en) | 1985-04-03 |
| GR71868B (cs) | 1983-07-08 |
| EP0015359A1 (en) | 1980-09-17 |
| EG14717A (en) | 1985-03-31 |
| IL59056A0 (en) | 1980-03-31 |
| IN152491B (cs) | 1984-01-28 |
| DK6680A (da) | 1980-07-09 |
| ES487498A0 (es) | 1980-11-01 |
| AR226049A1 (es) | 1982-05-31 |
| DE3070408D1 (en) | 1985-05-09 |
| BR8000062A (pt) | 1980-10-21 |
| CA1134579A (en) | 1982-11-02 |
| PT70663A (en) | 1980-02-01 |
| IL59056A (en) | 1983-06-15 |
| NZ192541A (en) | 1983-11-30 |
| ATE12470T1 (de) | 1985-04-15 |
| AU536497B2 (en) | 1984-05-10 |
| FI800042A7 (fi) | 1981-01-01 |
| ES8100146A1 (es) | 1980-11-01 |
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