JP2847300B2 - Sheet pallet - Google Patents
Sheet palletInfo
- Publication number
- JP2847300B2 JP2847300B2 JP1241178A JP24117889A JP2847300B2 JP 2847300 B2 JP2847300 B2 JP 2847300B2 JP 1241178 A JP1241178 A JP 1241178A JP 24117889 A JP24117889 A JP 24117889A JP 2847300 B2 JP2847300 B2 JP 2847300B2
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- weight
- copolymer
- propylene
- sheet
- 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.)
- Expired - Fee Related
Links
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 31
- 239000005977 Ethylene Substances 0.000 claims description 30
- 229920001577 copolymer Polymers 0.000 claims description 28
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 claims description 19
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 17
- 229920000642 polymer Polymers 0.000 claims description 11
- 229920001155 polypropylene Polymers 0.000 claims description 11
- 239000004711 α-olefin Substances 0.000 claims description 11
- 229920001038 ethylene copolymer Polymers 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 7
- 238000000113 differential scanning calorimetry Methods 0.000 claims description 7
- 229920005672 polyolefin resin Polymers 0.000 claims description 6
- 239000011256 inorganic filler Substances 0.000 claims description 5
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 5
- 239000011342 resin composition Substances 0.000 claims description 5
- 229920001567 vinyl ester resin Polymers 0.000 claims description 5
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 150000001735 carboxylic acids Chemical class 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 20
- 229920001971 elastomer Polymers 0.000 description 19
- 239000005060 rubber Substances 0.000 description 19
- -1 polypropylene Polymers 0.000 description 12
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 10
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 10
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 239000004743 Polypropylene Substances 0.000 description 8
- 229920005604 random copolymer Polymers 0.000 description 8
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 229920001903 high density polyethylene Polymers 0.000 description 5
- 239000004700 high-density polyethylene Substances 0.000 description 5
- 229920000092 linear low density polyethylene Polymers 0.000 description 4
- 239000004707 linear low-density polyethylene Substances 0.000 description 4
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000011949 solid catalyst Substances 0.000 description 3
- CMAOLVNGLTWICC-UHFFFAOYSA-N 2-fluoro-5-methylbenzonitrile Chemical compound CC1=CC=C(F)C(C#N)=C1 CMAOLVNGLTWICC-UHFFFAOYSA-N 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001993 dienes Chemical class 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 2
- NKHAVTQWNUWKEO-UHFFFAOYSA-N fumaric acid monomethyl ester Natural products COC(=O)C=CC(O)=O NKHAVTQWNUWKEO-UHFFFAOYSA-N 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 description 1
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- OFNISBHGPNMTMS-UHFFFAOYSA-N 3-methylideneoxolane-2,5-dione Chemical compound C=C1CC(=O)OC1=O OFNISBHGPNMTMS-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
- JTHZUSWLNCPZLX-UHFFFAOYSA-N 6-fluoro-3-methyl-2h-indazole Chemical compound FC1=CC=C2C(C)=NNC2=C1 JTHZUSWLNCPZLX-UHFFFAOYSA-N 0.000 description 1
- 239000004184 Avoparcin Substances 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- IEPRKVQEAMIZSS-UHFFFAOYSA-N Di-Et ester-Fumaric acid Natural products CCOC(=O)C=CC(=O)OCC IEPRKVQEAMIZSS-UHFFFAOYSA-N 0.000 description 1
- IEPRKVQEAMIZSS-WAYWQWQTSA-N Diethyl maleate Chemical compound CCOC(=O)\C=C/C(=O)OCC IEPRKVQEAMIZSS-WAYWQWQTSA-N 0.000 description 1
- XLYMOEINVGRTEX-ARJAWSKDSA-N Ethyl hydrogen fumarate Chemical compound CCOC(=O)\C=C/C(O)=O XLYMOEINVGRTEX-ARJAWSKDSA-N 0.000 description 1
- 239000004716 Ethylene/acrylic acid copolymer Substances 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920011250 Polypropylene Block Copolymer Polymers 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910021551 Vanadium(III) chloride Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- UVJHQYIOXKWHFD-UHFFFAOYSA-N cyclohexa-1,4-diene Chemical compound C1C=CCC=C1 UVJHQYIOXKWHFD-UHFFFAOYSA-N 0.000 description 1
- OIWOHHBRDFKZNC-UHFFFAOYSA-N cyclohexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCC1 OIWOHHBRDFKZNC-UHFFFAOYSA-N 0.000 description 1
- KBLWLMPSVYBVDK-UHFFFAOYSA-N cyclohexyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCC1 KBLWLMPSVYBVDK-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- QHZOMAXECYYXGP-UHFFFAOYSA-N ethene;prop-2-enoic acid Chemical compound C=C.OC(=O)C=C QHZOMAXECYYXGP-UHFFFAOYSA-N 0.000 description 1
- ZBGRMWIREQJHPK-UHFFFAOYSA-N ethenyl 2,2,2-trifluoroacetate Chemical compound FC(F)(F)C(=O)OC=C ZBGRMWIREQJHPK-UHFFFAOYSA-N 0.000 description 1
- GLVVKKSPKXTQRB-UHFFFAOYSA-N ethenyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OC=C GLVVKKSPKXTQRB-UHFFFAOYSA-N 0.000 description 1
- LZWYWAIOTBEZFN-UHFFFAOYSA-N ethenyl hexanoate Chemical compound CCCCCC(=O)OC=C LZWYWAIOTBEZFN-UHFFFAOYSA-N 0.000 description 1
- AFSIMBWBBOJPJG-UHFFFAOYSA-N ethenyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC=C AFSIMBWBBOJPJG-UHFFFAOYSA-N 0.000 description 1
- QBDADGJLZNIRFQ-UHFFFAOYSA-N ethenyl octanoate Chemical compound CCCCCCCC(=O)OC=C QBDADGJLZNIRFQ-UHFFFAOYSA-N 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- XLYMOEINVGRTEX-UHFFFAOYSA-N fumaric acid monoethyl ester Natural products CCOC(=O)C=CC(O)=O XLYMOEINVGRTEX-UHFFFAOYSA-N 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 1
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- NKHAVTQWNUWKEO-IHWYPQMZSA-N methyl hydrogen fumarate Chemical compound COC(=O)\C=C/C(O)=O NKHAVTQWNUWKEO-IHWYPQMZSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- NKHAVTQWNUWKEO-NSCUHMNNSA-N monomethyl fumarate Chemical compound COC(=O)\C=C\C(O)=O NKHAVTQWNUWKEO-NSCUHMNNSA-N 0.000 description 1
- 229940005650 monomethyl fumarate Drugs 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- BOQSSGDQNWEFSX-UHFFFAOYSA-N propan-2-yl 2-methylprop-2-enoate Chemical compound CC(C)OC(=O)C(C)=C BOQSSGDQNWEFSX-UHFFFAOYSA-N 0.000 description 1
- LYBIZMNPXTXVMV-UHFFFAOYSA-N propan-2-yl prop-2-enoate Chemical compound CC(C)OC(=O)C=C LYBIZMNPXTXVMV-UHFFFAOYSA-N 0.000 description 1
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- HQYCOEXWFMFWLR-UHFFFAOYSA-K vanadium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[V+3] HQYCOEXWFMFWLR-UHFFFAOYSA-K 0.000 description 1
- 125000005287 vanadyl group Chemical group 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はシートパレット、特に耐寒性または高剛性な
シートパレットに関する。Description: TECHNICAL FIELD The present invention relates to a sheet pallet, particularly to a cold-resistant or highly rigid sheet pallet.
さらに詳しくは、プロピレン系重合体、高密度ポリエ
チレン等のポリエチレン系樹脂およびゴム状物質、超低
密度ポリエチレン等の軟質のゴムまたは樹脂の3成分系
組成物からなるシートであって、耐寒性、剛性等の機械
的強度に優れ、かつ該シートの載荷面の摩擦係数が裏面
の摩擦係数よりも大きくした作業性の良好なシートパレ
ットに関する。More specifically, a sheet composed of a three-component composition of a propylene polymer, a polyethylene resin such as high-density polyethylene and a rubber-like substance, and a soft rubber or resin such as ultra-low-density polyethylene, which has cold resistance, rigidity The present invention relates to a sheet pallet having excellent mechanical strength, such as excellent operability, in which the friction coefficient of the loading surface of the sheet is larger than the friction coefficient of the back surface.
近年の省資源化に伴って、貨物の流通分野においても
従来の木製パレットやプラスチック製バレット等の代わ
りに、軽便なシートパレットを利用するシステムが急速
に普及しつつある。With the recent resource saving, a system using a light sheet pallet instead of a conventional wooden pallet or a plastic valet is rapidly spreading in the field of cargo distribution.
シートパレットは、 (イ)保管のためのスペースが節約できる (ロ)安価である (ハ)場合によっては回収を省略できる (ニ)製作が容易である (ホ)作業能率を向上しうる などの多くの利点を有している。 Sheet pallets (a) save space for storage (b) are inexpensive (c) can be omitted in some cases (d) can be easily manufactured (e) can improve work efficiency It has many advantages.
このシートパレットは、プラスチックを主原料として
製作し、その構造や形状さらに組成にも特徴を持たせた
種々のものが提案されている。Various types of sheet pallets manufactured using plastic as a main raw material and having characteristics in the structure, shape and composition have been proposed.
例えば、実公昭55−16821号公報に開示された「荷運
び用の台」は、包装貨物の運搬、移送を行う際に、ポリ
オレフィン系樹脂の厚さ0.5〜3.2mmのシートパレットの
少なくとも上面に粗面が形成されており、かつ上面は下
面よりも粗い面に形成することにより、上面と貨物との
間の静的摩擦係数を下面とプラテンとの間の滑り摩擦係
数よりも高くしたことを特徴とし、これにより、荷役作
業を円滑ならしめている。For example, a `` table for carrying '' disclosed in Japanese Utility Model Publication No. 55-16821 is used to transport and transfer packaged cargo, at least on the upper surface of a sheet pallet having a thickness of 0.5 to 3.2 mm of polyolefin resin. The rough surface is formed, and the upper surface is formed to be rougher than the lower surface, so that the coefficient of static friction between the upper surface and the cargo is higher than the coefficient of sliding friction between the lower surface and the platen. As a characteristic, the cargo handling work is smoothed.
また、特公昭58−1023号公報に開示された「スリッパ
パレット」は、ポリオレフィン樹脂を主成分とし、見掛
け比重が0.4〜0.7の発泡シートに罫線を刻設し、周縁の
1ケ所以上にタブを設けたことを特徴とし、罫線部の破
断防止や耐衝撃性等の改良を目的とするシートパレット
が提案されている。In addition, the "slipper pallet" disclosed in Japanese Patent Publication No. 58-1023 has a polyolefin resin as a main component, an apparent specific gravity is engraved with a ruled line on a foamed sheet of 0.4 to 0.7, and tabs are provided at one or more places around the periphery. There has been proposed a sheet pallet characterized by being provided with the object of preventing breakage of a ruled line portion and improving impact resistance and the like.
これらの方法により、シートパレットの耐水性、耐油
性、耐薬品性、強度、耐熱性、耐衝撃性などの基本的性
状は一応満足できるものが得られているが、耐寒性につ
いては未だ十分とはいえない。By these methods, basic properties such as water resistance, oil resistance, chemical resistance, strength, heat resistance, impact resistance, etc. of the sheet pallet can be satisfied, but the cold resistance is still insufficient. I can't say.
また耐寒性、耐衝撃性を向上させる材料としては、プ
ロピレン・ブロックコポリマーまたはポリプロピレンと
エチレン・プロピレン共重合体ゴムとのブランド組成物
なども開発されている。Further, as a material for improving cold resistance and impact resistance, a propylene block copolymer or a brand composition of polypropylene and an ethylene / propylene copolymer rubber has been developed.
例えば本出願人が、特開昭62−174233号公報に開示し
た「耐寒性シートパレット」は、プロピレン重合体と特
定のエチレン・α−オレフィン共重合体からなる組成物
を用いて、耐寒性を改良することを提案している。For example, the applicant has disclosed a `` cold-resistant sheet pallet '' disclosed in Japanese Patent Application Laid-Open No. Sho 62-174233, which uses a composition comprising a propylene polymer and a specific ethylene / α-olefin copolymer to exhibit cold resistance. Suggests improvements.
さらに、ポリプロピレンの耐衝撃性等を改良する目的
でエチレン・プロピレン共重合体ゴムまたは/およびポ
リエチレンを配合した組成物(例えば特公昭39−18746
号、特公昭41−7345号、特開昭55−104334号公報など)
も知られている。Further, a composition containing ethylene / propylene copolymer rubber or / and polyethylene for the purpose of improving the impact resistance of polypropylene (for example, JP-B-39-18746)
No., JP-B-41-7345, JP-A-55-104334, etc.)
Is also known.
しかし近年は物流がより複雑化し、使用範囲の拡大に
伴い、高温・低温両面の特性が要望され、特に寒冷地、
冷凍庫内などの超低温下の使用を考慮して、強度、耐熱
性などと同時に耐低温衝撃性の向上が極めて重要になり
つつある。However, in recent years, logistics has become more complicated, and as the range of use has expanded, characteristics of both high and low temperatures have been demanded.
In consideration of use at ultra-low temperatures such as in a freezer, it is becoming extremely important to improve strength, heat resistance, and the like, as well as low-temperature impact resistance.
通常プラスチック材料において、強度、剛性、耐熱性
等の物性は耐低温衝撃性と相反する性状であるため、こ
れら諸性質問のバランスを考慮したシートパレットの開
発が強く望まれている。In general, in plastic materials, physical properties such as strength, rigidity, heat resistance and the like are incompatible with low-temperature impact resistance. Therefore, there is a strong demand for the development of a sheet pallet in consideration of a balance of these various questions.
本発明は上記の点に鑑み、材料組成を検討することに
より、特に脆化温度の改良が成され、剛性および耐低温
衝撃性のバランスの点で優れる作業性のよいシートパレ
ットを提供することを目的とするものである。In view of the above, the present invention provides a sheet pallet with improved workability, particularly in terms of balance of rigidity and low-temperature impact resistance, by examining the material composition to improve the brittleness temperature. It is the purpose.
また、他の目的は、組成物中の特に超低密度ポリエチ
レンを適度に選択することにより、ポリプロピレンとポ
リエチレンとの相互の分散性がよい(良分散)組成物と
なることから無機フィラーの受容性がよく、比較的多量
のフィラーを充填しても、耐衝撃性が低下しないことか
ら、剛性等の機械的強度や耐熱性等に優れたシートパレ
ットを提供するものである。Another object of the present invention is to select a particularly low-density polyethylene in the composition, thereby obtaining a composition in which the mutual dispersibility of polypropylene and polyethylene is good (good dispersion). The present invention provides a sheet pallet excellent in mechanical strength such as rigidity, heat resistance, and the like because impact resistance does not decrease even when a relatively large amount of filler is filled.
本発明者は上記の目的に沿って鋭意検討した結果、プ
ロピレン系重合体、高密度ポリエチレン、等のエチレン
(共)重合体および超低密度ポリエチレンを特定割合で
混合させることにより、著しく耐寒性または剛性の優れ
たシートパレットが得られることを見い出し本発明を完
成するに至ったものである。The present inventor has conducted intensive studies along the above-mentioned object, and as a result, by mixing an ethylene (co) polymer such as a propylene-based polymer and a high-density polyethylene and an ultra-low-density polyethylene at a specific ratio, the cold resistance or the cold resistance is remarkably increased. The present inventors have found that a sheet pallet having excellent rigidity can be obtained, and have completed the present invention.
すなわち、本発明は、 (A)プロピレン系重合体 ……55〜90重量% (B)密度0.91以上〜0.97g/cm3のエチレンもしくはエ
チレンとα−オレフィンとの重合体、エチレン−ビニル
エステル共重合体、エチレン−不飽和カルボン酸または
その誘導体との共重合体から選択される少なくとも1種
のエチレン(共)重合体 ……5〜30重量% (C)エチレンと炭素数3〜12のα−オレフィンとを重
合して得られる下記の性状を有する超低密度ポリエチレ
ン ……5〜30重量% 密度0.86〜0.91g/cm3未満 示差走査熱量測定法(DSC)による最大ピーク温度1
00℃以上 沸騰n−ヘキサン不溶分10重量%以上 を含むポリオレフィン系樹脂組成物(但し、A+B+C
の合計量が100重量%とする)からなり、載荷面の摩擦
係数が裏面の摩擦係数よりも大きく、かつ厚さが0.3〜1
0mmであるシートパレット。That is, the present invention relates to (A) a propylene-based polymer: 55 to 90% by weight (B) ethylene having a density of 0.91 or more to 0.97 g / cm 3 or a polymer of ethylene and an α-olefin; At least one ethylene (co) polymer selected from a polymer, a copolymer of ethylene-unsaturated carboxylic acid or a derivative thereof ... 5 to 30% by weight (C) ethylene and α having 3 to 12 carbon atoms - maximum peak temperature 1 by ultra low density polyethylene ...... 5-30% by weight having the following properties obtained by polymerizing an olefin density 0.86~0.91g / cm less than 3 differential scanning calorimetry (DSC)
Polyolefin-based resin composition containing at least 00 ° C and a boiling n-hexane insoluble content of 10% by weight or more (however, A + B + C
Is 100% by weight), the friction coefficient of the loading surface is larger than the friction coefficient of the back surface, and the thickness is 0.3 to 1
A sheet pallet that is 0mm.
本発明の(A)成分のプロピレン系集合体とは、プロ
ピレン単独重合体、プロピレンを主成分とする他のα−
オレフィンとの共重合体およびこれらの混合物等が挙げ
られる。The propylene-based aggregate of the component (A) of the present invention includes a propylene homopolymer and other α-
Examples thereof include copolymers with olefins and mixtures thereof.
より具体的には、アイソタクチックポリプロピレン、
シンジォタクチックポリプロピレン、プロピレン−エチ
レンブロック共重合体、プロピレン−エチレンランダム
共重合体、プロピレン−1−ブテン共重合体等が使用す
ることができる。More specifically, isotactic polypropylene,
Syndiotactic polypropylene, propylene-ethylene block copolymer, propylene-ethylene random copolymer, propylene-1-butene copolymer and the like can be used.
上記共重合体のプロピレン含量は、少なくとも60重量
%以上であることが好ましい。The propylene content of the copolymer is preferably at least 60% by weight or more.
また上記プロピレン系重合体のメルトフロート(以下
MFRという)は、0.1〜10g/10分、好ましくは、0.5〜5g/
10分の範囲にあることが、剛性、耐熱性等の維持のため
に望ましい。Further, a melt float of the propylene polymer (hereinafter referred to as a melt float)
MFR) is 0.1 to 10 g / 10 minutes, preferably 0.5 to 5 g /
A range of 10 minutes is desirable for maintaining rigidity and heat resistance.
MFRが0.1g/10分未満では溶融樹脂の流動性が悪くな
り、良好なシートが得られ難く、かつ生産性が低下する
虞を生じる。When the MFR is less than 0.1 g / 10 minutes, the flowability of the molten resin is deteriorated, so that it is difficult to obtain a good sheet, and there is a possibility that the productivity may be reduced.
またMFRが10g/10分を超える場合においては、シート
の強度その他の物性が低下する懸念が生じる。If the MFR exceeds 10 g / 10 minutes, there is a concern that the strength and other physical properties of the sheet may be reduced.
本発明の(B)成分の密度0.91以上〜0.97g/cm3のエ
チレンもしくはエチレンとα−オレフィンとの重合体、
エチレン−ビニルエステル共重合体、エチレン−不飽和
カルボン酸またはその誘導体との共重合体から選択され
た少なくとも1種のエチエン(共)重合体とは、 (B1)チーグラー系触媒あるいは高圧ラジカル重合に
よるエチレン単独重合体、またはエチレンとα−オレフ
ィン共重合体であり、例えば密度0.94/cm3以上のエチレ
ン単独重合体またはエチレンとα−オレフイン共重合体
としては、中・高密度ポリエチレンあるいはエチレンと
プロピレン、ブテン−1、4−メチル・ペンテン−1、
ヘキセン−1等のα−オレフインとの共重合体等が挙げ
られる。Component (B) of the present invention, a density of 0.91 or more to 0.97 g / cm 3 of ethylene or a polymer of ethylene and an α-olefin,
At least one ethene (co) polymer selected from an ethylene-vinyl ester copolymer and a copolymer with an ethylene-unsaturated carboxylic acid or a derivative thereof includes: (B1) a Ziegler catalyst or a high-pressure radical polymerization. ethylene homopolymer or an ethylene and α- olefin copolymers such as the density of 0.94 / cm 3 or more ethylene homopolymer or ethylene and α- olefin copolymer, medium and high density polyethylene, or ethylene and propylene , Butene-1, 4-methylpentene-1,
Copolymers with α-olefin such as hexene-1 and the like.
また(B2)密度0.94/cm3以下の低密度ポリエチレンと
しては、直鎖状低密度ポリエチレン(LLDPE)、高圧法
低密度ポリエチレン(HpLDP)またはそれらの混合物が
挙げられる。(B3)エチレン−ビニルエステル共重合体
とは、エチレンを主成分とするプロピオン酸ビニル、酢
酸ビニル、カプロン酸ビニル、カプリル酸ビニル、ラウ
リル酸ビニル、ステアリン酸ビニル、トリフルオル酢酸
ビニルなどのビニルエステル単量体の共重合体である。
これらの中でも特に好ましいものとしては、酢酸ビニル
を挙げることができる。Examples of the (B2) low-density polyethylene having a density of 0.94 / cm 3 or less include linear low-density polyethylene (LLDPE), high-pressure low-density polyethylene (HpLDP), and a mixture thereof. (B3) Ethylene-vinyl ester copolymer is a vinyl ester monomer mainly composed of ethylene such as vinyl propionate, vinyl acetate, vinyl caproate, vinyl caprylate, vinyl laurate, vinyl stearate, and vinyl trifluoroacetate. It is a copolymer of a monomer.
Among them, particularly preferred is vinyl acetate.
(B4)エチレン不飽和カルボン酸またはその誘導体と
の共重合体は、エチレンを主成分とするアクリル酸、メ
タクリル酸、マレイン酸、フマル酸、イタコン酸、無水
マレイン酸、無水イタコン酸などの不飽和カルボン酸
類:アクリル酸メチル、メタクリル酸メチル、アクリル
酸エチル、メタクリル酸エチル、アクリル酸プロピル、
メタクリル酸プロピル、アクリル酸イソプロピル、メタ
クリル酸イソプロピル、アクリル酸−n−ブチル、メタ
クリル酸−n−ブチル、アクリル酸シクロヘキシル、メ
タクリル酸シクロヘキシル、アクリル酸ラウリル、メタ
クリル酸ラウリル、アクリル酸ステアリル、メタクリル
酸ステアリル、マレイン酸モノメチルエステル、マレイ
ン酸モノエチルエステル、マレイン酸ジエチルエステ
ル、フマル酸モノメチルエステル、などの不飽和カルボ
ン酸アルキルエステル単量体との共重合体であり、特に
好ましいものとしてはアクリル酸エチルが挙げられる。(B4) Ethylene-unsaturated carboxylic acid or a copolymer thereof with a derivative thereof is unsaturated such as acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, maleic anhydride, itaconic anhydride, etc., having ethylene as a main component. Carboxylic acids: methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, propyl acrylate,
Propyl methacrylate, isopropyl acrylate, isopropyl methacrylate, n-butyl acrylate, n-butyl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate, lauryl acrylate, lauryl methacrylate, stearyl acrylate, stearyl methacrylate, Monomethyl maleate, monoethyl maleate, diethyl maleate, monomethyl fumarate, and copolymers with unsaturated carboxylic acid alkyl ester monomers such as ethyl acrylate are particularly preferred. Can be
上記エチレン共重合体の具体例としては、エチレン/
アクリル酸共重合体、エチレン/メタクリル酸共重合
体、エチレン/アクリル酸/アクリル酸エチル共重合
体、エチレン/アクリル酸エチル共重合体、エチレン/
酢酸ビニル共重合体、エチレン/酢酸ビニル/アクリル
酸エチル共重合体などのランダム共重合体が挙げられ
る。Specific examples of the above ethylene copolymer include ethylene /
Acrylic acid copolymer, ethylene / methacrylic acid copolymer, ethylene / acrylic acid / ethyl acrylate copolymer, ethylene / ethyl acrylate copolymer, ethylene /
Examples include random copolymers such as vinyl acetate copolymers and ethylene / vinyl acetate / ethyl acrylate copolymers.
上記エチレン(共)重合体のメルトフローレートは、
0.05〜50g/10分、好ましくは0.1〜10g/10分の範囲が前
記ポリプロピレン系重合体との相溶性を向上せしめる上
で望ましい。The melt flow rate of the ethylene (co) polymer is:
The range of 0.05 to 50 g / 10 min, preferably 0.1 to 10 g / 10 min is desirable for improving the compatibility with the polypropylene polymer.
本発明の(C)成分の(C1)ゴム状物質としては、エ
チレン−プロピレン・ランダム共重合体ゴム、エチレン
−プロピレン−ジエン・ランダム共重合体ゴム、天然ゴ
ム、イソブテンゴム、ブタジエンゴム、1,2−ポリブタ
ジエン、スチレン−ブタジエン・ランダム共重合体ゴ
ム、クロロプレンゴム、ニトリルゴム、スチレン−ブタ
ジエン−スチレンブロック共重合体ゴム、スチレン−イ
ソプレン−スチレンブロック共重合体ゴム等であり、こ
れらは単純でも、混合物でもよい。The rubbery substance (C1) of the component (C) of the present invention includes ethylene-propylene random copolymer rubber, ethylene-propylene-diene random copolymer rubber, natural rubber, isobutene rubber, butadiene rubber, 2-polybutadiene, styrene-butadiene random copolymer rubber, chloroprene rubber, nitrile rubber, styrene-butadiene-styrene block copolymer rubber, styrene-isoprene-styrene block copolymer rubber, etc. It may be a mixture.
これらの中でも、エチレン・プロピレン・ジエンラン
ダム共重合体ゴム、エチレン・プロピレンランダム共重
合体ゴムが特に好ましい。Among them, ethylene / propylene / diene random copolymer rubber and ethylene / propylene random copolymer rubber are particularly preferable.
この二つのゴムは、他のゴム状物質に比べて熱可塑性
にすぐれ、溶融混練による分散が容易であり、SBR、イ
ソプレンゴム、ニトリルゴムあるいはブタジエンゴム等
と比較すると独特の臭気を有しない点、あるいはペレッ
ト状で入手できるために、配合する際の計量や取扱いが
容易あり、かつ組成物製造装置の形式についても選択の
自由度が大きいことなど、操作上の利点を有することが
挙げられる。These two rubbers are superior in thermoplasticity to other rubbery substances, are easily dispersed by melt-kneading, and do not have a unique odor compared to SBR, isoprene rubber, nitrile rubber or butadiene rubber, Alternatively, since it can be obtained in the form of pellets, it has advantages in operation, such as easy measurement and handling at the time of compounding, and a high degree of freedom in selecting the type of the composition producing apparatus.
上記エチレン−プロピレン−ジエン・ランダム共重合
体ゴムのジエン成分については、エチリデンノルボルネ
ン、ジシクロペンタジエン、1,4−シクロヘキサジエン
等いずれも使用できる。As the diene component of the ethylene-propylene-diene random copolymer rubber, any of ethylidene norbornene, dicyclopentadiene, 1,4-cyclohexadiene and the like can be used.
またこれらのゴム状物質のムーニー粘度は(ML1+4100
℃)10〜100の範囲のものがよく、好ましくは(ML1+410
0℃)20〜90である。(ML1+4100℃)10以下のものを使
用すると、耐衝撃性の改良効果がほとんど得られず、
(ML1+4100℃)100以上のものであると、マトリックス
樹脂への分散が悪い。The Mooney viscosity of these rubbery substances is (ML 1 + 4 100
C) in the range of 10 to 100, preferably (ML 1 + 4 10
0 ° C) 20-90. (ML 1 + 4 100 ° C) If less than 10 is used, the effect of improving the impact resistance is hardly obtained.
(ML 1 + 4 100 ° C) If it is more than 100, the dispersion in the matrix resin is poor.
(C2)超低密度ポリエチレン(ULDPE)とは、密度が
0.86〜0.910g/cm3未満であり、かつ直鎖状低密度ポリエ
チレンとエチレン・α−オレフィン共重合体ゴムとの中
間の性状を示すポリエチレンを指す。(C2) Ultra low density polyethylene (ULDPE)
It refers to polyethylene having a property of 0.86 to less than 0.910 g / cm 3 and showing intermediate properties between linear low-density polyethylene and ethylene / α-olefin copolymer rubber.
例えば密度0.860〜0.910g/cm3未満、示差走査熱量測
定法(DSC)による最大ピーク温度(Tm)100℃以上、か
つ沸騰n−ヘキサン不溶分10重量%の性状を有する特定
のエチレン・α−オレフィン共重合体であり、少なくと
もチタンおよび/またはバナジウムを含有する固体触媒
成分と有機アルミニウム化合物とから成る触媒を用いて
重合される。For example, specific ethylene-α- having a density of less than 0.860 to 0.910 g / cm 3 , a maximum peak temperature (Tm) of 100 ° C. or more by differential scanning calorimetry (DSC), and a boiling n-hexane insoluble content of 10% by weight. An olefin copolymer, which is polymerized using a catalyst comprising a solid catalyst component containing at least titanium and / or vanadium and an organoaluminum compound.
上記ULDPEは、直鎖状低密度ポリエチレンが示す高結
晶部分とエチレン・α−オレフィン共重合体ゴムが示す
非晶部分とを合わせ持つ樹脂であって、前者の特徴であ
る機械的強度、耐熱性などと、後者の特徴であるゴム状
弾性、耐低温衝撃性などがバランスよく共存しており、
本発明に用いるときは、後述するように、広範囲に優れ
た性能を有する熱可塑性樹脂組成物が得られるため極め
て有用である。The above ULDPE is a resin having both a high crystalline portion represented by a linear low-density polyethylene and an amorphous portion represented by an ethylene / α-olefin copolymer rubber, and has the mechanical strength and heat resistance characteristic of the former. With the latter, rubber-like elasticity and low-temperature impact resistance, which are the characteristics of the latter, coexist in a good balance,
When used in the present invention, as described below, a thermoplastic resin composition having excellent performance over a wide range is obtained, which is extremely useful.
上記メルフローレートは、0.01〜50g/10分、好ましく
は0.05〜10g/10分の範囲で使用される。The above-mentioned melt flow rate is used in the range of 0.01 to 50 g / 10 minutes, preferably 0.05 to 10 g / 10 minutes.
本発明の組成物の配合割合は、(A)成分のポリプロ
ピレン系重合体55〜90重量%、(B)成分のエチレン
(共)重合体5〜30重量%、(C)成分のゴム状物質ま
たは超低密度ポリエチレン5〜30重量%(但し、A+B
+Cの合計量を100重量%とする)である。The compounding ratio of the composition of the present invention is 55 to 90% by weight of the polypropylene polymer (A), 5 to 30% by weight of the ethylene (co) polymer of the component (B), and the rubbery substance of the component (C). Or 5 to 30% by weight of ultra low density polyethylene (however, A + B
+ C is 100% by weight).
該組成物の(B)成分の配合量が5重量%未満では、
耐衝撃性、特に耐低温衝撃性の改善が達成されない。When the amount of the component (B) in the composition is less than 5% by weight,
No improvement in impact resistance, especially low-temperature impact resistance, is achieved.
また該配合量が30重量%を超える場合においては、強
度、剛性および耐熱性の劣るものとなる。When the amount exceeds 30% by weight, strength, rigidity and heat resistance are poor.
組成物の(C)成分の配合量についても同様に配合量
が5重量%未満では、耐低温衝撃性が改良されず、30重
量%を超える場合には、強度、剛性および耐熱性の劣る
ものとなる。Similarly, if the amount of the component (C) in the composition is less than 5% by weight, the low-temperature impact resistance is not improved, and if it exceeds 30% by weight, the strength, rigidity and heat resistance are poor. Becomes
上記組成物の配合方法としては、開放型のミキシング
ロール、非開放型のバンバリーミキサー、押出機、ニー
ダー、二軸押出機、タンブラー、ヘンシェルミキサー等
従来公知のものを使用することができる。As the compounding method of the above composition, conventionally known ones such as an open-type mixing roll, a non-open-type Banbury mixer, an extruder, a kneader, a twin-screw extruder, a tumbler, and a Henschel mixer can be used.
また混練方法としては、ドライブレンド、溶融混合あ
るいはこれらの3成分を重合しながら混合してもよい。As a kneading method, dry blending, melt mixing, or mixing these three components while polymerizing may be used.
本発明は、このように(A)、(B)および(C)を
所望の割合で混合した後、押出成形(例えばTダイ法
等)または、カレンダー法等の通常の方法でシート化
し、シート載荷面側の全面または所望部にエンボス加
工、サンドブラスト、コロナ放電処理、火炎処理、プラ
ズマ処理などの表面処理を施して粗面化するか、または
シート載荷面にエチレン−酢酸ビニル共重合体、合成ゴ
ムなどの防滑材を貼合わせて、積層することにより、載
荷面の摩擦係数を大きくして荷滑りや荷崩れを防止す
る。According to the present invention, after mixing (A), (B) and (C) at a desired ratio, a sheet is formed by an ordinary method such as extrusion molding (for example, T-die method) or calendering method. Either embossing, sand blasting, corona discharge treatment, flame treatment, plasma treatment, or other surface treatment is applied to the entire or desired portion of the loading surface to roughen the surface, or an ethylene-vinyl acetate copolymer is synthesized on the sheet loading surface. By laminating and laminating anti-slip materials such as rubber, the coefficient of friction of the loading surface is increased to prevent load slip and collapse.
上記の摩擦係数については、紙製またはプラスチック
製など貨物の包装材料により、また貨物底部の形状、貨
物の重量等により異なるが、例えばボール紙の表面に対
しては、上面静止摩擦係数として0.2〜0.8、好ましくは
0.3〜0.7の範囲が適当である。The above-mentioned coefficient of friction varies depending on the packaging material of the cargo such as paper or plastic, and also depends on the shape of the bottom of the cargo, the weight of the cargo, and the like. 0.8, preferably
A range of 0.3 to 0.7 is appropriate.
さらに、本発明のシートパレットの厚さは0.3〜10m
m、好ましくは0.5〜5mmの範囲において適宜選択する。Furthermore, the thickness of the sheet pallet of the present invention is 0.3 to 10 m
m, preferably in the range of 0.5 to 5 mm.
シートパレットの厚さが0.3mm未満では、シートの剛
性等の機械的強度が劣り、また厚さが10mmを超える場合
には、本発明において要求される特性は、満足されるも
のの、重量が大となり、荷役の自動化や取扱に支障を来
す懸念がある。When the thickness of the sheet pallet is less than 0.3 mm, the mechanical strength such as sheet rigidity is inferior. When the thickness exceeds 10 mm, the characteristics required in the present invention are satisfied, but the weight is large. There is a concern that it will hinder automation and handling of cargo handling.
該耐寒性シートパレットの性状の目標値は、曲げこわ
さ5,000Kgf/cm2以上、脆化温度−50℃以下である。The target values of the properties of the cold-resistant sheet pallet are a stiffness of 5,000 kgf / cm 2 or more and an embrittlement temperature of -50 ° C. or less.
本発明において、耐寒性の他に耐熱性、剛性を向上せ
しめるためには、上記の組成に無機充填剤を添加するこ
とが好ましい。In the present invention, in order to improve heat resistance and rigidity in addition to cold resistance, it is preferable to add an inorganic filler to the above composition.
すなわち、 (A)プロピレン系重合体 ……55〜90重量% (B)密度0.91以上〜0.97g/cm3のエチレンもしくはエ
チレンとα−オレフィンとの重合体、エチレン−ビニル
エステル共重合体、エチレン−不飽和カルボン酸または
その誘導体との共重合体から選択される少なくとも1種
のエチレン(共)重合体 ……5〜30重量% (C)エチレンと炭素数3〜12のα−オレフィンとを重
合して得られる下記の性状を有する超低密度ポリエチレ
ン ……5〜30重量% 密度0.86〜0.91g/cm3未満 示差走査熱量測定法(DSC)による最大ピーク温度1
00℃以上 沸騰n−ヘキサン不溶分10重量%以上 を含むポリオレフィン系樹脂組成物(但し、A+B+C
の合計量が100重量%とする)100重量部に対し (D)無機充填剤 ……5〜100重量部 とからなるシートパレットとすることにより、上記目的
を達成することができる。(A) Propylene-based polymer 55-90% by weight (B) Ethylene having a density of 0.91 or more to 0.97 g / cm 3 or a polymer of ethylene and α-olefin, ethylene-vinyl ester copolymer, ethylene -At least one ethylene (co) polymer selected from copolymers with unsaturated carboxylic acids or derivatives thereof: 5 to 30% by weight (C) ethylene and an α-olefin having 3 to 12 carbon atoms Ultra low density polyethylene having the following properties obtained by polymerization: 5 to 30% by weight Density 0.86 to less than 0.91 g / cm 3 Maximum peak temperature 1 by differential scanning calorimetry (DSC) 1
Polyolefin-based resin composition containing at least 00 ° C and a boiling n-hexane insoluble content of 10% by weight or more (however, A + B + C
The above object can be achieved by using a sheet pallet comprising: (D) an inorganic filler: 5 to 100 parts by weight with respect to 100 parts by weight.
上記無機充填剤の充填量が5重量部未満では、剛性、
耐熱性等がが十分に向上しない。If the amount of the inorganic filler is less than 5 parts by weight, rigidity,
Heat resistance and the like are not sufficiently improved.
また100重量部を超える場合には、耐低温衝撃性が低
下する。If the amount exceeds 100 parts by weight, the low-temperature impact resistance is reduced.
本発明の(D)無機充填剤とは、タルク、炭酸カルシ
ウム、カーボンブラック、マイカ、ガラス繊維、炭素繊
維、アラミド樹脂、アスベストなどの各種通例の充填剤
およびこれら充填剤を表面処理したものを適宜配合する
ことができる。As the inorganic filler (D) of the present invention, various common fillers such as talc, calcium carbonate, carbon black, mica, glass fiber, carbon fiber, aramid resin, asbestos and the like, and those obtained by subjecting these fillers to surface treatment are appropriately used. Can be blended.
本発明の組成物に必要に応じて安定剤、酸化防止剤、
紫外線吸収剤、滑剤、発泡剤、帯電防止剤、難燃剤、架
橋剤、可塑剤、染料、顔料などを適宜配合することがで
きる。Stabilizers, antioxidants as needed in the composition of the present invention,
An ultraviolet absorber, a lubricant, a foaming agent, an antistatic agent, a flame retardant, a crosslinking agent, a plasticizer, a dye, a pigment, and the like can be appropriately compounded.
以下、本発明を実施例により具体的に説明するが、本
発明はこれらによって限定されるものではない。Hereinafter, the present invention will be described specifically with reference to Examples, but the present invention is not limited thereto.
〔使用樹脂等〕 (A)成分; (A)ポリプロピレンブロック共重合体(PPと称す
る)、 [エチレン約10重量%、MFR=1.5g/10min.] (B)成分; (B1)高密度ポリエチレン(HDPEと称する) [密度0.956g/cm3、MFR=1.6g/10min 商品名:日石スタフレン E715、日本石油化学
(株)] (B2)直鎖状低密度ポリエチレン(LLDPEと称する) [密度0.921g/cm3、MFR=1.0g/10min 商品名:日石リニレックス AF2380、日本石油化学
(株)] (B3)エチレン−酢酸ビニル共重合体(EVAと称する) [密度0.932g/cm3、MFR=1.0g/10min 商品名:日石レクスロン V260、日本石油化学
(株)] (B4)エチレン−アクリル酸エチル共重合体(EEAと称
する) [EA含量10wt%、MFR=1.5g/10min 商品名:日石レクスロン A2100、日本石油化学
(株)] (C)成分;ゴム状物質 (C1)エチレン−プロピレン・ランダム共重合体ゴム
(EPRと称する) 三塩化バナジウム・エチルアルミニウムセスキクロリ
ド系触媒を用いて、エチレン・プロピレン共重合体ゴム
を得た。得られた共重合体ゴムはプロピレン含量19モル
%、ムーニー粘度(ML1+4、100℃)73、密度0.862g/cm3
であった。[Used resin, etc.] (A) component; (A) polypropylene block copolymer (referred to as PP); [about 10% by weight of ethylene, MFR = 1.5 g / 10 min.] (B) component; (B1) high-density polyethylene (Referred to as HDPE) [Density 0.956 g / cm 3 , MFR = 1.6 g / 10 min Product name: Nisseki Staphrene E715, Nippon Petrochemical Co., Ltd.] (B2) Linear low-density polyethylene (referred to as LLDPE) [Density 0.921 g / cm 3 , MFR = 1.0 g / 10 min Trade name: Nisseki Linirex AF2380, Nippon Petrochemical Co., Ltd.] (B3) Ethylene-vinyl acetate copolymer (referred to as EVA) [density 0.932 g / cm 3 , MFR = 1.0g / 10min Product name: Nisseki Lexlon V260, Nippon Petrochemical Co., Ltd.] (B4) Ethylene-ethyl acrylate copolymer (EEA) [EA content 10wt%, MFR = 1.5g / 10min Product Name: Nisseki Lexlon A2100, Nippon Petrochemical Co., Ltd.) (C) component; rubber-like substance (C1) ethylene-propylene. Random copolymer rubber (referred to as EPR) An ethylene / propylene copolymer rubber was obtained using a vanadium trichloride / ethyl aluminum sesquichloride catalyst. The obtained copolymer rubber had a propylene content of 19 mol%, a Mooney viscosity (ML 1 + 4 , 100 ° C.) of 73, and a density of 0.862 g / cm 3.
Met.
またDSCによるピークは認められず、したがって、Tm
は存在せず、C6不溶分も認められなかった。No peak due to DSC was observed, and therefore, the Tm
Was not present, and no C 6 insolubles were found.
(C2)エチレン・ブテン−1共重合体 実質的に無水の塩化マグネシウム、1,2−ジクロロエ
タンおよび四塩化チタンから得られた固体触媒成分とト
リエチルアルミニウムとからなる触媒を用いて、エチレ
ンとブテン−1とを共重合させてエチレン・ブテン−1
共重合体からなる超低密度ポリエチレン(ULDPE
(1))を得た。(C2) Ethylene-butene-1 copolymer Using a catalyst comprising triethylaluminum and a solid catalyst component obtained from substantially anhydrous magnesium chloride, 1,2-dichloroethane and titanium tetrachloride, ethylene and butene-1 And ethylene-butene-1
Ultra low density polyethylene (ULDPE) made of copolymer
(1)) was obtained.
この超低密度ポリエチレン(ULDPE(1))は、ブテ
ン−1含量10モル%、密度0.900g/cm3、Tm=120℃、C6
不溶分=82重量%、MFR=1.5g/10min.であった。This ultra-low density polyethylene (ULDPE (1)) has a butene-1 content of 10 mol%, a density of 0.900 g / cm 3 , a Tm of 120 ° C. and a C 6
The insoluble content was 82% by weight, and the MFR was 1.5 g / 10 min.
(C3)エチレン・プロピレン共重合体 実質的に無水の塩化マグネシウム、アントラセンおよ
び四塩化チタンから得られた固体触媒成分とトリエチル
アルミニウムとからなる触媒を用いて、エチレンとプロ
ピレンとを共重合体させてエチレン・プロピレン共重合
体からなる超低密度ポリエチレン(ULDPE(2))を得
た。(C3) Ethylene-propylene copolymer Ethylene and propylene are copolymerized using a catalyst comprising triethylaluminum and a solid catalyst component obtained from substantially anhydrous magnesium chloride, anthracene and titanium tetrachloride. An ultra low density polyethylene (ULDPE (2)) comprising an ethylene / propylene copolymer was obtained.
このエチレン・プロピレン共重合体は、プロピレン含
量12モル%、密度0.900g/cm3、Tm=119℃、C6不溶分=8
2重量%、MFR=1.3g/10min.であった。The ethylene / propylene copolymer had a propylene content of 12 mol%, a density of 0.900 g / cm 3 , a Tm of 119 ° C., and a C 6 insoluble content of 8
2% by weight, MFR = 1.3 g / 10 min.
(C4)エチレン・ブテン−1共重合体 三塩化バナジル・エチルアルミニウムセスキクロリド
系触媒を用いて、エチレン・ブテン−1共重合体からな
る超低密度ポリエチレン(ULDPE(3))を得た。(C4) Ethylene / butene-1 copolymer Using a vanadyl trichloride / ethylaluminum sesquichloride-based catalyst, an ultra-low density polyethylene (ULDPE (3)) composed of an ethylene / butene-1 copolymer was obtained.
得られた共重合体は、ブテン−1含量6モル%、密度
0.895g/cm3、Tm=81℃、C6不溶分=1.5重量%、MFR=3.
5g/10min.であった。The obtained copolymer had a butene-1 content of 6 mol% and a density of
0.895 g / cm 3 , Tm = 81 ° C., C 6 insoluble content = 1.5% by weight, MFR = 3.
It was 5 g / 10 min.
(MFR) JIS K6760に準拠。 (MFR) Conforms to JIS K6760.
(引張降伏強度)および(引張破壊伸び) JIS K6760に準拠。(Tensile yield strength) and (Tensile elongation at break) Based on JIS K6760.
(示差走査熱量測定法(DSC)による最大ピーク温度(T
m)の測定方法) 超低密度ポリエチレンの融点として測定した。熱プレ
ス成形した厚さ100μmのフィルムから約5mgの試料を精
秤し、これをDSC装置にセットし、170℃に昇温して同温
度で15min保持した後、降温速度2.5℃/minで0℃まで冷
却する。次にこの状態から昇温速度10℃/minで170℃ま
で昇温を行い、0℃から170℃まで昇温する間に現れた
ピークのうちの最大のものの頂点の位置の温度をTmとす
る。(Differential scanning calorimetry (DSC) maximum peak temperature (T
Measurement method of m)) It was measured as the melting point of ultra-low density polyethylene. Approximately 5 mg of a sample was weighed accurately from a hot-pressed film of 100 μm thickness, set in a DSC device, heated to 170 ° C. and maintained at the same temperature for 15 minutes, and then cooled at a rate of 2.5 ° C./min. Cool to ° C. Next, from this state, the temperature is raised to 170 ° C. at a rate of 10 ° C./min, and the temperature at the apex position of the largest peak among the peaks that appeared during the temperature rise from 0 ° C. to 170 ° C. is defined as Tm. .
(沸騰n−ヘキサン不溶物の測定法) 熱プレスを用いて厚さ200μmのシートを成形し、こ
れから20mm×30mmのシートを3枚切り取り、それらにつ
いて二重管式ソックスレー抽出器を用い沸騰n−ヘキサ
ンで5hr抽出を行う。n−ヘキサン不溶物を取り出し、
真空乾燥(7hr、50℃)後,次式により沸騰n−ヘキサ
ン不溶分を算出する: 実施例1〜3および比較例1〜13 上記の各成分を押出機(120mmΦ)を用いて樹脂温度2
35℃、冷却ロール温度100℃、引き取り速度2m/分のシー
ト成形条件で、厚さ1.8mm×幅1,600mmのシートを押出成
形し、さらにシート載荷面(上面)にエンボス加工を施
してシートパレット材料を製造した。上記の各種のシー
トパレット材料の配合組成および性状を表−1に示し
た。(Measurement Method of Boiling n-Hexane Insolubles) A 200-μm-thick sheet was formed by using a hot press, and three 20 mm × 30 mm sheets were cut out of the sheet, and the boiling n-sheet was extracted using a double tube Soxhlet extractor. Extract with hexane for 5 hours. Remove the n-hexane insolubles,
After vacuum drying (7 hr, 50 ° C.), the boiling n-hexane insoluble matter is calculated by the following formula: Examples 1 to 3 and Comparative Examples 1 to 13 Each of the above components was subjected to resin temperature 2 using an extruder (120 mmΦ).
Extruding a 1.8 mm thick x 1,600 mm wide sheet under sheet forming conditions of 35 ° C, cooling roll temperature of 100 ° C, and a take-up speed of 2 m / min, and embossing the sheet loading surface (upper surface) to form a sheet pallet The material was manufactured. Table 1 shows the composition and properties of the various sheet pallet materials described above.
性状値の測定方法は、次のようである。 The method of measuring the property value is as follows.
曲げこわさ;JIS K7106 脆化温度 ;JIS K6760 〔評価結果〕 表−1から明らかなように本発明の実施例においては
いずれも曲げ剛性が高く、かつ脆化温度が十分に低く、
剛性と耐低温衝撃性のバランスが優れている。Flexural stiffness; JIS K7106 embrittlement temperature; JIS K6760 [Evaluation results] As is clear from Table 1, in all of the examples of the present invention, the flexural rigidity is high, and the embrittlement temperature is sufficiently low.
Excellent balance between rigidity and low temperature impact resistance.
これに対して、比較例では、これらのバランスが十分
でなく、両者を同時に満足することができなかった。On the other hand, in the comparative example, these balances were not sufficient, and both could not be satisfied at the same time.
[発明の効果] 本発明シートパレットは、上述のように、ポリプロピ
レン系重合体、エチレン(共)重合体および超低密度ポ
リエチレンの3成分系組成物からなるものであるため、
耐水性、耐油性、耐薬品性などの化学的性質が良好で反
復使用に耐えるのみならず、強度、剛性、耐熱性および
耐低温衝撃性等のバランスが従来のものより格段に優れ
ており、特に脆化温度の改良が達成されたことから超低
温の環境下において長期間支障なく使用することができ
る。[Effect of the Invention] As described above, the sheet pallet of the present invention is made of a three-component composition of a polypropylene polymer, an ethylene (co) polymer, and an ultra-low density polyethylene,
Not only has good chemical properties such as water resistance, oil resistance, chemical resistance, etc. and can withstand repeated use, but also the balance of strength, rigidity, heat resistance and low temperature impact resistance is much better than conventional ones, In particular, since the improvement of the brittle temperature has been achieved, it can be used without difficulty for a long time in an ultra-low temperature environment.
Claims (2)
量% (B)密度0.91以上〜0.97g/cm3のエチレンもしくはエ
チレンとα−オレフィンとの重合体、エチレン−ビニル
エステル共重合体、エチレン−不飽和カルボン酸または
その誘導体との共重合体から選択される少なくとも1種
のエチレン(共)重合体 ……5〜30重量% (C)エチレンと炭素数3〜12のα−オレフィンとを重
合して得られる下記の性状を有する超低密度ポリエチレ
ン ……5〜30重量% 密度0.86〜0.91g/cm3未満 示差走査熱量測定法(DSC)による最大ピーク温度100
℃以上 沸騰n−ヘキサン不溶分10重量%以上 を含むポリオレフィン系樹脂組成物(但し、A+B+C
の合計量が100重量%とする)からなり、載荷面の摩擦
係数が裏面の摩擦係数よりも大きく、かつ厚さが0.3〜1
0mmであるシートパレット。(A) Propylene polymer: 55 to 90% by weight (B) Ethylene having a density of 0.91 or more to 0.97 g / cm 3 or a polymer of ethylene and α-olefin, ethylene-vinyl ester copolymer At least one ethylene (co) polymer selected from copolymers of ethylene-unsaturated carboxylic acids or derivatives thereof .... 5 to 30% by weight (C) ethylene and α-C 3 to C 12 Ultra-low density polyethylene having the following properties obtained by polymerization with olefin: 5 to 30% by weight Density 0.86 to less than 0.91 g / cm 3 Maximum peak temperature 100 by differential scanning calorimetry (DSC)
° C or higher Polyolefin-based resin composition containing 10% by weight or more of insoluble matter in boiling n-hexane (however, A + B + C
Is 100% by weight), the friction coefficient of the loading surface is larger than the friction coefficient of the back surface, and the thickness is 0.3 to 1
A sheet pallet that is 0mm.
A+B+Cの合計量が100重量%とする)100重量部に対
し、 (D)無機充填剤 ……5〜100重量部を含む請求項
(1)記載のシートパレット。2. The polyolefin resin composition (provided that:
The sheet pallet according to claim 1, wherein (D) an inorganic filler is included in an amount of 5 to 100 parts by weight with respect to 100 parts by weight (the total amount of A + B + C is 100% by weight).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1241178A JP2847300B2 (en) | 1988-11-14 | 1989-09-18 | Sheet pallet |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63-287041 | 1988-11-14 | ||
JP28704188 | 1988-11-14 | ||
JP1241178A JP2847300B2 (en) | 1988-11-14 | 1989-09-18 | Sheet pallet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02229846A JPH02229846A (en) | 1990-09-12 |
JP2847300B2 true JP2847300B2 (en) | 1999-01-13 |
Family
ID=26535133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1241178A Expired - Fee Related JP2847300B2 (en) | 1988-11-14 | 1989-09-18 | Sheet pallet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2847300B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101432008B1 (en) * | 2014-01-29 | 2014-08-20 | 한국컨테이너풀 주식회사 | Composition comprising at least two kinds of resin, glass fiber, LDPE and rubber-resin |
WO2015005556A1 (en) * | 2013-07-12 | 2015-01-15 | 한국컨테이너풀 주식회사 | Composition comprising two or more kinds of resins and glass long-fibers |
WO2015115710A1 (en) * | 2014-01-29 | 2015-08-06 | 한국컨테이너풀 주식회사 | Composition comprising glass fiber and two or more types of resin |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2557573B2 (en) * | 1991-05-08 | 1996-11-27 | 新日本製鐵株式会社 | Hot-dip galvanized steel sheet and method for producing the same |
JP4013497B2 (en) * | 2001-06-27 | 2007-11-28 | 住友化学株式会社 | Polypropylene composition for film and film thereof |
JP2008231411A (en) * | 2007-02-19 | 2008-10-02 | Kureha Corp | Resin composition for releasing sheet, releasing sheet, and method for producing flexible print circuit substrate or prepreg using the same |
JP2019014822A (en) * | 2017-07-07 | 2019-01-31 | 日立化成株式会社 | Resin sheet for vacuum molding |
US20220363426A1 (en) * | 2018-06-29 | 2022-11-17 | Midland Compounding & Consulting, Inc. | Recyclable abrasion resistant dunnage tray |
JP7206697B2 (en) * | 2018-08-27 | 2023-01-18 | 日本ポリプロ株式会社 | Polyolefin resin composition |
-
1989
- 1989-09-18 JP JP1241178A patent/JP2847300B2/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015005556A1 (en) * | 2013-07-12 | 2015-01-15 | 한국컨테이너풀 주식회사 | Composition comprising two or more kinds of resins and glass long-fibers |
US10066092B2 (en) | 2013-07-12 | 2018-09-04 | Korea Pallet Pool Co., Ltd. | Composition comprising at least two kinds of resin and glass fiber, and pallet manufactured from the same |
KR101432008B1 (en) * | 2014-01-29 | 2014-08-20 | 한국컨테이너풀 주식회사 | Composition comprising at least two kinds of resin, glass fiber, LDPE and rubber-resin |
WO2015115710A1 (en) * | 2014-01-29 | 2015-08-06 | 한국컨테이너풀 주식회사 | Composition comprising glass fiber and two or more types of resin |
US10144821B2 (en) | 2014-01-29 | 2018-12-04 | Korea Pallet Pool Co., Ltd. | Composition comprising glass fiber and two or more types of resin |
Also Published As
Publication number | Publication date |
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JPH02229846A (en) | 1990-09-12 |
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