JPS62174233A - Low-temperature-resistant sheet pallet - Google Patents
Low-temperature-resistant sheet palletInfo
- Publication number
- JPS62174233A JPS62174233A JP61016177A JP1617786A JPS62174233A JP S62174233 A JPS62174233 A JP S62174233A JP 61016177 A JP61016177 A JP 61016177A JP 1617786 A JP1617786 A JP 1617786A JP S62174233 A JPS62174233 A JP S62174233A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- temperature
- ethylene
- low
- pallet
- 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.)
- Granted
Links
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000005977 Ethylene Substances 0.000 claims abstract description 18
- 239000004711 α-olefin Substances 0.000 claims abstract description 15
- 238000000113 differential scanning calorimetry Methods 0.000 claims abstract description 9
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims abstract description 8
- 229920001155 polypropylene Polymers 0.000 claims abstract description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 15
- 239000000203 mixture Substances 0.000 abstract description 15
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 abstract description 6
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 abstract description 6
- 230000003068 static effect Effects 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 description 19
- 229920001577 copolymer Polymers 0.000 description 13
- 238000006116 polymerization reaction Methods 0.000 description 11
- 150000003609 titanium compounds Chemical class 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- -1 polysiloxanes Polymers 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- 239000011949 solid catalyst Substances 0.000 description 7
- 229910052719 titanium Inorganic materials 0.000 description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 4
- VXNZUUAINFGPBY-UHFFFAOYSA-N ethyl ethylene Natural products CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 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
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 125000003710 aryl alkyl group Chemical group 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 125000005843 halogen group Chemical group 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- UBZYKBZMAMTNKW-UHFFFAOYSA-J titanium tetrabromide Chemical compound Br[Ti](Br)(Br)Br UBZYKBZMAMTNKW-UHFFFAOYSA-J 0.000 description 3
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 3
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 3
- NTWOIGOPFDMZAE-UHFFFAOYSA-M CCO[Ti](Cl)(OCC)OCC Chemical compound CCO[Ti](Cl)(OCC)OCC NTWOIGOPFDMZAE-UHFFFAOYSA-M 0.000 description 2
- ZALOHOLPKHYYAX-UHFFFAOYSA-L CO[Ti](Cl)(Cl)OC Chemical compound CO[Ti](Cl)(Cl)OC ZALOHOLPKHYYAX-UHFFFAOYSA-L 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229920011250 Polypropylene Block Copolymer Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- SXSVTGQIXJXKJR-UHFFFAOYSA-N [Mg].[Ti] Chemical compound [Mg].[Ti] SXSVTGQIXJXKJR-UHFFFAOYSA-N 0.000 description 2
- 150000004703 alkoxides Chemical class 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
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- XGZNHFPFJRZBBT-UHFFFAOYSA-N ethanol;titanium Chemical compound [Ti].CCO.CCO.CCO.CCO XGZNHFPFJRZBBT-UHFFFAOYSA-N 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical class CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- 150000002902 organometallic compounds Chemical class 0.000 description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229920001384 propylene homopolymer Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- ORYGRKHDLWYTKX-UHFFFAOYSA-N trihexylalumane Chemical compound CCCCCC[Al](CCCCCC)CCCCCC ORYGRKHDLWYTKX-UHFFFAOYSA-N 0.000 description 2
- 125000005287 vanadyl group Chemical group 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-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
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- RMTCVMQBBYEAPC-UHFFFAOYSA-K ethanolate;titanium(4+);trichloride Chemical compound [Cl-].[Cl-].[Cl-].CCO[Ti+3] RMTCVMQBBYEAPC-UHFFFAOYSA-K 0.000 description 1
- GCPCLEKQVMKXJM-UHFFFAOYSA-N ethoxy(diethyl)alumane Chemical compound CCO[Al](CC)CC GCPCLEKQVMKXJM-UHFFFAOYSA-N 0.000 description 1
- MGDOJPNDRJNJBK-UHFFFAOYSA-N ethylaluminum Chemical compound [Al].C[CH2] MGDOJPNDRJNJBK-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- 150000002901 organomagnesium compounds Chemical class 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- LTEDQKPGOZDGRZ-UHFFFAOYSA-L propan-2-olate;titanium(4+);dichloride Chemical compound Cl[Ti+2]Cl.CC(C)[O-].CC(C)[O-] LTEDQKPGOZDGRZ-UHFFFAOYSA-L 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- NLLZTRMHNHVXJJ-UHFFFAOYSA-J titanium tetraiodide Chemical compound I[Ti](I)(I)I NLLZTRMHNHVXJJ-UHFFFAOYSA-J 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は耐寒性のシートパレットに関し、さらに、ｉＴ
Ｌ／ ＜は、プロピレン系重合体おにび特定のエチレ
ン・α−オレフィン共重合体からなるシート状成形品で
あり、かつ上面のＪ８！擦係数が下面のそれにり大きく
、厚さが０．３〜１０ｍ＋であるシートパレットに関す
る。[Detailed Description of the Invention] [Industrial Application Field 1] The present invention relates to a cold-resistant sheet pallet, and further relates to an iT
L/ < is a sheet-shaped molded product made of a propylene polymer and a specific ethylene/α-olefin copolymer, and J8! The present invention relates to a sheet pallet in which the coefficient of friction is greater on the lower surface and the thickness is 0.3 to 10 m+.
［従来の技術１
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パレッＩ・などの
代りに、軽便なシートパレットを利用する流通システム
が急速に普及しつつある。[Conventional technology 1] With the recent resource saving, even in the field of cargo distribution,
Distribution systems that use convenient sheet pallets in place of conventional wooden pallets, plastic pallets, etc. are rapidly becoming popular.
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こと、（ロ）
安価であること、
（ハ）場合にＪ：つては回収を省略できること、（ニ）
製作が簡単であること、おＪ、び（ホ）作業能率を向上
し得ること
むと多くの利点を有している。Sheet pallets (a) save space for storage; (b)
(c) In some cases, recovery can be omitted; (d)
It has many advantages, including being easy to manufacture and improving work efficiency.
このシートパレットは、紙、プラスチックなどの４４質
を用いて製作し、そのＭＡ造や形状に特徴を持たせた種
々の６のが提案されている。This sheet pallet is manufactured using 44 materials such as paper and plastic, and 6 different types have been proposed with unique MA structures and shapes.
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、移送を行なう際に
、ポリオレフィン系熱可塑性樹脂の厚さ０．５ないし３
．２ｍ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荒い面に形成するこ
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、荷役作業を円滑ならしめている。For example, "
When transporting and transferring packaged cargo, "loading platform" is made of polyolefin thermoplastic resin with a thickness of 0.5 to 3.
．． A rough surface is formed on at least the top surface of the 2m sheet pallet, and by forming the top surface to be rougher than the bottom surface, the static friction coefficient between the top surface and the cargo is reduced, and the coefficient of static friction between the bottom surface and the platen is reduced. It is characterized by a coefficient of friction that is higher than the sliding friction coefficient, making cargo handling operations smoother.
また、特公昭５８−１０２３号公報に開示された「スリ
ップパレット」は、ポリオレフィン樹脂を主成分とし、
見掛番ノ比重が０．４・〜０．７の発泡シートに罫線を
刻設し、周縁の１箇所以上にタブを設けたことを￥ｉ徴
とし、罫線部の破断防止や耐衝撃性などの改良を目的と
するシートパレットが提案されている。In addition, the "slip pallet" disclosed in Japanese Patent Publication No. 58-1023 has polyolefin resin as its main component,
A foam sheet with an apparent number specific gravity of 0.4 to 0.7 is marked with ruled lines, and tabs are provided at one or more places on the periphery, which is considered to be a ¥i symbol to prevent the ruled line from breaking and to provide impact resistance. Sheet pallets have been proposed for the purpose of improving the following.
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ｗＪ撃性等の基本的性状
は一応満足できるものが得られている。By these methods, sheet pallets with basic properties such as water resistance, oil resistance, chemical resistance, strength, heat resistance, wJ impact resistance, etc., are obtained that are somewhat satisfactory.
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あるいはボリブＯピレンとエ
ブーレン・プロピレンゴムとのブレンド組成物なども開
発されてきた。Furthermore, as materials for improving cold resistance and impact resistance, propylene block copolymers or blend compositions of bolibu-O-pyrene and ebulene propylene rubber have been developed.
しかし近年は使用範囲の拡大に伴い高温・低温両用の特
性が要望され、とくに寒冷地、冷凍庫内等の超低温下の
使用を考慮して強度、耐熱性等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, as the scope of use has expanded, there has been a demand for properties that can be used at both high and low temperatures.In particular, considering use in cold regions and ultra-low temperatures such as inside freezers, improvements in strength, heat resistance, and low-temperature impact resistance are extremely important. It's becoming important.
［発明が解決しようとする問題点］
通常プラスチック材料において強度、剛性、耐熱性等は
耐衝撃性とくに耐低温衝撃性と相反する性状であるため
、公知の組成物でこれらを同時に満足させることは困難
であり、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た。[Problems to be Solved by the Invention] Generally, in plastic materials, strength, rigidity, heat resistance, etc. are properties that conflict with impact resistance, especially low-temperature impact resistance, so it is difficult to simultaneously satisfy these properties with known compositions. This is difficult, and there is a strong desire to develop a sheet pallet that takes into consideration the balance of these various characteristics.
本発明は、材料組成を検討することにより上記の問題を
解決し、とくに剛性および耐低温衝撃性のバランスの点
でずぐれた耐寒性シートパレットを提供することを目的
とする。The present invention aims to solve the above-mentioned problems by examining the material composition, and to provide a cold-resistant sheet pallet that has an excellent balance between rigidity and low-temperature impact resistance.
Ｅ問題を解決するための手段］
本発明者らは、上記目的に沿って鋭意検討した結果、プ
ロピレン系重合体および特定のエチレン・α−オレフィ
ン共重合体からなるシートを用いることにより、と（に
耐寒性のすぐれたシートパレットが得られることを見い
出し、本発明に到達した。Means for Solving Problem E] As a result of intensive studies in accordance with the above objectives, the present inventors have found that by using a sheet made of a propylene polymer and a specific ethylene/α-olefin copolymer, ( The inventors have discovered that sheet pallets with excellent cold resistance can be obtained, and have arrived at the present invention.
すなわち本発明は、ａ）ブ０ピレン系重合体８０〜９５
重量％、およびｂ）エチレンと炭素数３〜６のα−オレ
フィンとを重合させて得られる下記の（ｉ） 、 （ｉ
ｉ）の性状を有するエチレン・α−オレフィン共重合体
５〜２０重量％からなり、かつ上面の摩擦係数が下面の
摩擦係数より大きく、厚さが０．３〜１０履であるシー
ト状の耐寒性シートパレッ！・を提供するものである。That is, the present invention provides a) butyrene-based polymer 80-95
% by weight, and b) the following (i) obtained by polymerizing ethylene and an α-olefin having 3 to 6 carbon atoms, (i
A sheet-like cold-resistant sheet consisting of 5 to 20% by weight of an ethylene/α-olefin copolymer having the properties of i), the friction coefficient of the upper surface is larger than the friction coefficient of the lower surface, and the thickness is 0.3 to 10 mm. Sex sheet palette!・It provides:
（ｉ）密度０．８７０へ・０．９１０ＳＦ／ｃｍ３（ｉ
ｉ）示差走査熱聞測定法（ＤＳＧ）による最大ピーク温
度が５０℃以上
以下に発明の内容を詳述する。(i) Density to 0.870・0.910SF/cm3(i
i) The maximum peak temperature measured by differential scanning calorimetry (DSG) is 50° C. or more and below.
本発明に使用するプロピレン系重合体としては、プロピ
レンの単独重合体、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にびそれらの混合物などがあ
るが、耐熱性を有するという点から、結晶性のプロピレ
ン単独重合体、ブロック共重合体などが好ましい。The propylene polymer used in the present invention includes propylene homopolymers, other α-polymers containing propylene as a main component,
Although copolymers with olefins and mixtures thereof are available, crystalline propylene homopolymers, block copolymers, and the like are preferred from the viewpoint of heat resistance.
上記プロピレン系重合体のＭｌ（メルトインデックス）
は０．１〜１０９／１０分の範囲が好ましい。Ml (melt index) of the above propylene polymer
is preferably in the range of 0.1 to 109/10 minutes.
Ｍｌが０．１ｔＪ／１０分未満では、溶融樹脂の流動が
悪く、押出機のスクリュー動力が高くなり過ぎ、良好な
シートの生産が困難となる。If Ml is less than 0.1 tJ/10 minutes, the flow of the molten resin will be poor and the screw power of the extruder will become too high, making it difficult to produce a good sheet.
一方、Ｍｌが１０ｇ／１０分を超える場合は、溶融樹脂
のウェアが垂れ下り、良好な成形ができない。On the other hand, if Ml exceeds 10 g/10 minutes, the wear of the molten resin will sag, making it impossible to perform good molding.
また、シートの強度その他の物性が低下する懸念が生じ
る。Furthermore, there is a concern that the strength and other physical properties of the sheet may deteriorate.
本発明に用いるエチレン・α−オ゛レフイン共Φ合体と
は、エチレンと炭素数３〜６のα−オレフィンとの共重
合体であり、具体的なオレフィンとしてはプロピレン、
ブテン−１，４−メチルペンテン−１およびヘキセン−
１等を挙げることができる。重合触媒にはバナジウム系
およびマグネシウムーヂタン系が用いられるが、以下に
両触媒系およびそれらによる重合方法について説明する
。The ethylene/α-olefin coΦ polymer used in the present invention is a copolymer of ethylene and an α-olefin having 3 to 6 carbon atoms, and specific olefins include propylene,
Butene-1,4-methylpentene-1 and hexene-
I can list the first prize. Vanadium-based and magnesium-ditane-based polymerization catalysts are used, and both catalyst systems and polymerization methods using them will be explained below.
本発明に用いるバナジウム系触媒としては、バナジウム
系ブーグラー触媒、たとえば三塩化バナジル−エチルア
ルミニウムセスキクロリドを用いることができる。該触
媒系によりα−オレフィン含量が５〜３０モル％の共重
合体を（ｑる方法が知らしＴイル（ｆ７１ｍｌｌＲ５Ｇ
−２８５８９、Ｒ［ｆｆｌ昭５０−１５５５８３、待聞
昭５ｌ−４１７８４）。この系統の共重合体は低結晶性
を承りため、耐低温衝撃性の向上にとくにすぐれた効果
を発揮する。As the vanadium-based catalyst used in the present invention, a vanadium-based Bugler catalyst, such as vanadyl trichloride-ethylaluminum sesquichloride, can be used. The catalyst system was used to prepare a copolymer with an α-olefin content of 5 to 30 mol%.
-28589, R [ffl 1984-155583, Machimon 5l-41784). Since this type of copolymer has low crystallinity, it is particularly effective in improving low-temperature impact resistance.
次に、本発明に使用するマグネシウム−チタン系触媒は
、少なくともマグネシウムおよびチタンを含有する固体
触媒成分に有機アルミニウム化合物を組み合わせたもの
である。該固体触媒成分としては、たとえば金属マグネ
シウム、水酸化マグネシウム、炭酸マグネシウム、酸化
マグネシウム、塩化マグネシウム等のマグネシウム塩、
またケイ素、アルミニウム、カルシウムから選ばれる金
属とマグネシウム原子とを含有する複塩、ＷｉＷ１化物
、炭酸塩、塩化物あるいは水酸化物等、さらにはこれら
の焦ｉ質固体化合物を含酸素化合物、含硫黄化合物、芳
香族炭化水素、ハロゲン含有物質で処理または反応さ°
せたもの等のマグネシウムを含む無機質固体化合物にチ
タン化合物を公知の方法により担持させたものが挙げら
れる。Next, the magnesium-titanium catalyst used in the present invention is a combination of a solid catalyst component containing at least magnesium and titanium and an organoaluminum compound. Examples of the solid catalyst component include magnesium salts such as metallic magnesium, magnesium hydroxide, magnesium carbonate, magnesium oxide, and magnesium chloride;
In addition, double salts, WiW1 compounds, carbonates, chlorides, or hydroxides containing a metal selected from silicon, aluminum, and calcium and a magnesium atom, and furthermore, these fiery solid compounds can be used as oxygen-containing compounds, sulfur-containing compounds, etc. treated or reacted with compounds, aromatic hydrocarbons, or halogen-containing substances
Examples include those in which a titanium compound is supported on an inorganic solid compound containing magnesium by a known method.
上記の含酸素化合物としては、たとえば水、アルコール
、フェノール、ケトン、アルデヒド、カルボン酸、エス
テル、ポリシロキサン、酸アミド等の有機含酸素化合物
、金属アルコキシド、金属のオキシ塩化物等の無機含酸
素化合物を例示することができる。含硫黄化合物として
は、ヂオール、チオエーテルのような有機含硫黄化合物
、二酸化硫黄、二酸化硫黄、硫酸のような無機含硫黄化
合物を例示することができる。芳香族炭化水素としては
、ベンゼン、トルエン、キシレン、アントラセン、フェ
ナンスレンのような各種の単環および多環の芳香族炭化
水素化合物を例示することができる。ハロゲン含有物質
としては、塩素、塩化水素、金属塩化物、有機ハロゲン
化物のような化合物を例示することができる。Examples of the oxygen-containing compounds mentioned above include water, alcohols, phenols, ketones, aldehydes, carboxylic acids, esters, polysiloxanes, organic oxygen-containing compounds such as acid amides, and inorganic oxygen-containing compounds such as metal alkoxides and metal oxychlorides. can be exemplified. Examples of the sulfur-containing compound include organic sulfur-containing compounds such as diol and thioether, and inorganic sulfur-containing compounds such as sulfur dioxide, sulfur dioxide, and sulfuric acid. Examples of aromatic hydrocarbons include various monocyclic and polycyclic aromatic hydrocarbon compounds such as benzene, toluene, xylene, anthracene, and phenanthrene. Examples of halogen-containing substances include compounds such as chlorine, hydrogen chloride, metal chlorides, and organic halides.
チタン化合物としては、チタンのハロゲン化物、アルコ
キシハロゲン化物、アルコキシド、ハ〔１ゲン化酸化物
等を挙げることができる。チタン化合物としては４価の
チタン化合物と３１ｉ１！ｉのチタン化合物が好適であ
り、４価のチタン化合物としては具体的には一般式Ｔｉ
（ＯＲ＞。Ｘ４−ｏ （ここで［よ炭素数１〜２０
のアルキル基、アリール基またはアラルキル基を示し、
Ｘはハロゲン原子を示し、ｎは０≦ｎ≦４である）で示
されるものが好ましく、四塩化チタン、四臭化チタン、
四ヨウ化チタン、モノメ１〜ギシトリクＯロチタン、ジ
メトキシジクロロチタン、トリメ１〜キシモノクロロチ
タン、デトラメトキシチタン、モノエトキシトリクロロ
チタン、ジェトキシツク０ロヂタン、トリエトキシモノ
クロロチタン、テトラエトキシチタン、モノイソブロボ
キシトリクロロヂタン、ジイソプロポキシジクロロチタ
ン、ｌ−リイソブロボキシモノクロロブタン、テトライ
ソプロポキシチタン、モノ７１〜キシトリクロロチタン
、ジメトキシジクロロチタン、七ノベントキシ１〜リク
ロロチタン、−しノフェノキシ１−リクロロチタン、シ
フ１ノキシジクＯロヂタン、トリエトキシモノクロロチ
タン、テトラエトキシチタン等を挙げることができる。Examples of the titanium compound include titanium halides, alkoxy halides, alkoxides, and halogenated oxides. As titanium compounds, tetravalent titanium compounds and 31i1! A titanium compound represented by i is preferable, and the tetravalent titanium compound is specifically represented by the general formula Ti
(OR>.X4-o (where [yo carbon number 1 to 20
represents an alkyl group, aryl group or aralkyl group,
X represents a halogen atom, n is 0≦n≦4), and titanium tetrachloride, titanium tetrabromide, titanium tetrabromide,
Titanium tetraiodide, monometallic titanium, dimethoxydichlorotitanium, trimethoxytichlorotitanium, detramethoxytitanium, monoethoxytrichlorotitanium, jetoxoxytitanium, triethoxymonochlorotitanium, tetraethoxytitanium, monoisobroboxy Trichloroditane, diisopropoxydichlorotitanium, l-liisobroboxymonochlorobutane, tetraisopropoxytitanium, mono-71-xytrichlorotitanium, dimethoxydichlorotitanium, 7-nobenxy-1-lichlorotitanium, -sinophenoxy-1-lichlorotitanium, Schif Examples include monooxydichloride titanium, triethoxymonochlorotitanium, and tetraethoxytitanium.
３価のチタン化合物としては、四塩化チタン、四臭化チ
タン等の四ハロゲン化チタンを水素、アルミニウム、チ
タンあるいは周期律表１〜■族・金属の有機金属化合物
により還元して得られる三ハロゲン化チタンが挙げられ
る。また一般式％式％
のアルキル基、アリール基またはアラルキル閃を示し、
Ｘはハロゲン原子を示し、ｍはＯ＜ｍ＜４である）で示
される４価のハロゲン化アルコキシヂタンを周期律表１
〜■族金属の有機金属化合物により還元して得られる３
価のブタン化合物が挙げられる。Trivalent titanium compounds include trihalogens obtained by reducing titanium tetrahalides such as titanium tetrachloride and titanium tetrabromide with hydrogen, aluminum, titanium, or organometallic compounds of metals in groups 1 to 2 of the periodic table. Examples include titanium oxide. It also represents an alkyl group, aryl group or aralkyl group of the general formula %,
X represents a halogen atom, and m is O<m<4).
3 obtained by reduction with an organometallic compound of ~■ group metal
butane compounds.
これらのチタン化合物のうら、４（ａｉのブタン化合物
が特に好ましい。Among these titanium compounds, 4(ai) butane compounds are particularly preferred.
伯の触媒系の例としては固体触媒成分どして、いわゆる
グリニヤール化合物等の有機マグネシウム化合物とチタ
ン化合物との反応生成物を用い、これに右磯アルミニウ
ム化合物を組み合わせた触媒系を挙げることができる。An example of Haku's catalyst system is a catalyst system that uses a reaction product of an organomagnesium compound such as a so-called Grignard compound and a titanium compound as a solid catalyst component, and combines this with a Uiso aluminum compound. .
また他の触媒系の例としては、固体触媒成分として、Ｓ
ｉＯ，Ａｇ２Ｏ３等の無機酸化物と前記の少なくともマ
グネシウムおＪ：びチタンを含有する固体触媒成分を接
触させて得られる固体物質を用い、これに有機アルミニ
ウム化合物を組み合わせたものを挙げることかできる。Further, as an example of other catalyst systems, S is used as a solid catalyst component.
A solid material obtained by contacting an inorganic oxide such as iO, Ag2O3, etc. with the solid catalyst component containing at least magnesium and titanium may be used in combination with an organic aluminum compound.
上記した固体触媒成分と組み合わせるべき有機アルミニ
ウム化合物の具体的な例としては一般式％式％
ＲＡ１２Ｘ３の有機アルミニウム化合物（ここでＲは炭
素数１〜２０のアル１ル基、アリール基またはアラルキ
ル基、Ｘはハロゲン原子を示し、Ｒは同一でもまた異な
ってｂよい）で示される化合物が好ましく、トリエチル
アルミニウム、トリヘキシルアルミニウム、トリヘキシ
ルアルミニウム、トリエチルアルミニウム、ジエチルア
ルミニウムクロリド、ジエヂルアルミニウムエトキシド
、エチルアルミニウムセスキクロリドおよびこれらの混
合物等が挙げられる。Specific examples of organoaluminum compounds to be combined with the solid catalyst component described above include organoaluminum compounds of the general formula RA12X3 (where R is an alkyl group having 1 to 20 carbon atoms, an aryl group, or an aralkyl group, X represents a halogen atom, and R may be the same or different and b may be the same, and compounds represented by triethylaluminum, trihexylaluminum, trihexylaluminum, triethylaluminum, diethylaluminum chloride, diethylaluminum ethoxide, ethylaluminum are preferred. Sesquichloride, mixtures thereof, and the like.
有機アルミニウム化合物の使用量はとくに制限されない
が通常チタン化合物に対して ０．１〜１０００モル倍
使用することかできる。The amount of the organoaluminum compound to be used is not particularly limited, but it can usually be used in an amount of 0.1 to 1000 times the amount of the titanium compound.
、上記のマグネシウム−チタン系触媒による共重合体で
はα−オレフィン含邑は５〜４０モル％であることが好
ましい。また該共重合体は一部結晶相を含むため、非結
晶相に基づく耐低温衝撃性のみならず、結晶相に起因す
る耐油性、耐薬品性、強度、剛性、耐熱性等も合わせて
もつため、諸性質問のバランスを改善するためのブレン
ド材としてとくにずぐれている。In the above copolymer using a magnesium-titanium catalyst, the α-olefin content is preferably 5 to 40 mol %. In addition, since the copolymer contains some crystalline phase, it not only has low-temperature impact resistance due to the amorphous phase, but also oil resistance, chemical resistance, strength, rigidity, heat resistance, etc. due to the crystalline phase. Therefore, it is particularly suitable as a blending material for improving the balance of properties.
重合反応は通常のデーグラ−型触媒ににるオレフィンの
重合反応と同様にして行なわれる。すなわち反応はすべ
て実質的に酸素、水等を絶った状態で、気相、または不
活性溶媒の存在下、または七ツマー自体を溶媒として行
なわれる。オレフィンの重合条件は温度は２０〜３００
℃、好ましくは４０〜２００℃であり、圧力は常圧ない
し１０Ｋｇ／ｃＩｌｉ−Ｇ、好ましくは２Ｋｙ／ｃｄ−
Ｇないし６０ＫＢ ／ ｃｉ・Ｇである。分子量の調節
は重合温度、触媒のモル比等の手合条件を変えることに
Ｊ：ってもある程度調節できるが、重合系中に水素を添
加することにより効果的に行なわれる。・もちろん、水
素濃度、重合４度等の重合条件の異なった２段階ないし
それ以上の多段階の重合反応もなｌυら支障な〈実施で
きる。The polymerization reaction is carried out in the same manner as the polymerization reaction of olefins using ordinary Daegler type catalysts. That is, all reactions are carried out in a gas phase, in the presence of an inert solvent, or in the presence of a heptamer itself as a solvent, in a state substantially free of oxygen, water, etc. Olefin polymerization conditions are temperature 20-300
℃, preferably 40 to 200℃, and the pressure is normal pressure to 10Kg/cIli-G, preferably 2Ky/cd-
G to 60KB/ci・G. Although the molecular weight can be adjusted to some extent by changing the polymerization temperature, catalyst molar ratio, etc., it is effectively carried out by adding hydrogen to the polymerization system.・Of course, a two-step or more multi-step polymerization reaction with different polymerization conditions such as hydrogen concentration and 4 degrees of polymerization can also be carried out without any problems.
このようにしてｙＪ造される本発明のｂ）成分であるエ
チレン・α−オレフィン共重合体は、（１）密度０．８
７０〜０．’）１０Ｓｌ／ ｃｔｔｒ３．好ましくは０
．８７５〜Ｑ、 ９０５ ’Ｊ ／ ｃｍ ”、（ｉｉ
）示差走査熱量測定法（ＤＳＣ）による最大ビーク二瓜
が５０℃以上、好ましくは６０℃以」二
の条件を満足りるものでな【ノればならい。The ethylene/α-olefin copolymer which is component b) of the present invention produced in this way has (1) a density of 0.8
70-0. ')10Sl/cttr3. Preferably 0
．． 875~Q, 905'J/cm'', (ii
) The maximum peak temperature measured by differential scanning calorimetry (DSC) must be 50°C or higher, preferably 60°C or higher.
上記の密度が０．９１０ｇ／ｃｍ３を越える場合には、
シーＩ・パレットとしてｌ１Ｊｉ質となり、可１尭性が
なくなり、耐ＷＪ撃性が低下する。一方密度が０．８７
０ｇ／ Ｃｍ３未満においては強度、靭性が低下し、か
つ耐熱性の劣るｂのとなる。If the above density exceeds 0.910g/cm3,
As a sea I pallet, it has l1Ji quality, loses its fragility, and reduces WJ impact resistance. On the other hand, the density is 0.87
If it is less than 0 g/Cm3, the strength and toughness will decrease and the heat resistance will be poor.
ＤＳＣによる最大ピーク温度（Ｔｍ）は結晶形態と相関
する値であり、Ｔｍが５０℃以下であるとやはりシート
パレッ１−の強度、剛性、耐熱性の劣るものとなる。The maximum peak temperature (Tm) determined by DSC is a value that correlates with the crystal form, and if Tm is 50° C. or less, the strength, rigidity, and heat resistance of the sheet pallet 1 will be poor.
該エチレン・α−オレフィン共重合体のＭｌは好ましく
は０．０５〜５０９ ／ １０ｎ＋ｉｎ １にり好まし
くは０．１〜２０び７１０ｍ１ｎの範囲である。The Ml of the ethylene/α-olefin copolymer is preferably in the range of 0.05 to 509/10 n+in 1, preferably 0.1 to 20 and 710 m1.
なお、本発明におけるＤＳＧの測定方法は次のとおりで
ある。Note that the method for measuring DSG in the present invention is as follows.
［ＤＳＣににる測定法］
熱プレス成形した厚さ１００μｍのフィルムから約５
ｍｙの試料を秤消し、それをＤＳＣ装置にセットし、１
７０℃に昇温してその温度で１５ｍ１ｎ保持した後降温
速度２．５℃／、 ｍ ｉ ｎでＯ′Ｃまで冷ＬＪｌす
る。[Measurement method using DSC] Approx.
Weigh out my sample, set it in the DSC device, and
After raising the temperature to 70°C and holding it at that temperature for 15ml, it was cooled to O'C at a cooling rate of 2.5°C/min.
次に、この状態から昇温速度１０℃／ ｍｉｎで １７
０°Ｃまでｆｆ１．渇して測定を行なう。０℃から１７
０℃に昇温する間に現われたピークの最大の１０点の位
買の温度をもってＴｍとする。Next, from this state, increase the temperature at a rate of 10°C/min to 17
ff1. to 0°C. Take measurements after drying. 0℃ to 17
The temperature of the 10 largest peaks that appeared during the temperature rise to 0°C is defined as Tm.
ａ）成分およびｂ）成分のブレンド組成はａ）／ｂ）の
重量比が８０〜９５１５〜２０である。The blend composition of component a) and component b) has a weight ratio of a)/b) of 80-9515-20.
ｂ）成分の量が２０重量％を越えると強度、°剛性おに
び耐熱性の劣るものどなり、一方５重量％より少ないと
耐衝撃性とくに耐低温衝撃性の改善の目的が達せられな
い。If the amount of component b) exceeds 20% by weight, the strength, rigidity, and heat resistance will deteriorate, while if it is less than 5% by weight, the purpose of improving impact resistance, especially low-temperature impact resistance, will not be achieved.
本発明に用いられるブレンド組成物が示す曲げ剛性率の
目標値は５ 、 ＯＯＯＮｇ／ ｃＩＩｉ以上、ビい化
温度は一５０℃以下である。The target value of the flexural rigidity of the blend composition used in the present invention is 5, OOON g/cIIi or more, and the vitrifying temperature is -50°C or less.
ａ）、ｂ）両成分のブレンド方法としては任意の公知技
術が使用でき、代表的な例としてはヘンシェルミキサー
、押出機、タンブラ−等の通常の混練機を用いて、トラ
イブレンド、溶融混合等の方法によって行なわれる。Any known technique can be used to blend both components a) and b), and typical examples include tri-blending, melt-mixing, etc. using a normal kneading machine such as a Henschel mixer, extruder, or tumbler. This is done by the following method.
本発明は上記のようにａ）、ｂ）両成分を所望の割合で
混合した後、押出し成形またはＴダイ法、カレンダ法な
どの通例の方法でシート化した復、上面の全部または所
望部にエンボス加工、サンドプラスｈ、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粗面化
するか、あるい（、Ｌシートの上面にエチレン−酢酸ビ
ニル共重合体、合成ゴムなどの防滑材を貼り合わせまた
は積層して、下面Ｊ：り摩擦係数を大きくし、荷滑りや
荷くずれを防止する。The present invention involves mixing both components a) and b) in a desired ratio as described above, and then forming the product into a sheet by a customary method such as extrusion molding, T-die method, or calender method. Either roughen the surface by applying surface treatments such as embossing, Sand Plus H, corona discharge treatment, flame treatment, or plasma treatment, or apply anti-slip materials such as ethylene-vinyl acetate copolymer or synthetic rubber to the top surface of the L sheet. The materials are bonded or laminated to increase the coefficient of friction on the lower surface and prevent the load from sliding or collapsing.
上記の摩擦係数は、紙製あるい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、貨物の工１
１＜【どにＪ：すジシなるが、たとえばボール紙の表面
に対しては上面の静ｔｈ摩擦係数として０．２〜０．８
、好ましくはＯ５３〜０．７の範囲が適当である。The above coefficient of friction depends on the packaging material of the cargo, such as paper or plastic, the shape of the bottom of the cargo, and the construction of the cargo.
1
, preferably in the range of O53 to 0.7.
さらに、本発明のシートパレットの厚さは、０．３〜１
０ｔａ、好ましくは０．５〜５ＩＮｎ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 1
It is appropriately selected within the range of 0ta, preferably 0.5 to 5INn.
シートパレットの厚さがＯ，３ｍ＋未満においては、シ
ートの剛性などの機械的強度が劣り、また厚さが１０１
１Ｉｌｌを超える場合には、本発明において要求される
特性は充足されるが、重量が大となり、荷役の自動化や
取扱いに支障を来す懸念がある。If the thickness of the sheet pallet is less than 0.3m+, the mechanical strength such as sheet rigidity will be poor, and if the thickness is less than 101m
If it exceeds 1 Ill, the characteristics required in the present invention are satisfied, but the weight increases, and there is a concern that automation and handling of cargo will be hindered.
本発明のシートパレットの形状は、矩形、正方形、楕円
形、円形など適宜の形状でよい。The sheet pallet of the present invention may have an appropriate shape such as a rectangle, square, oval, or circle.
本発明はまたシート材料中に帯電防止剤、酸化防止剤、
滑剤、紫外線吸収剤、難燃剤、分散剤、架橋剤など通常
の添加剤を添加しても差支えへい。The present invention also provides antistatic agents, antioxidants,
There is no problem in adding ordinary additives such as lubricants, ultraviolet absorbers, flame retardants, dispersants, and crosslinking agents.
［発明の効果］
上記の説明のように、本発明のシートパレットはプ【二
１ピレン系単合体および特定のエチレン・α−オレフィ
ン共重合体のブレンド物を用いることにより、耐水性、
耐油性、耐薬品性等の化学的性質が良好で反覆使用に耐
えるのみならず、強度、剛性、耐熱性Ｊ３よび耐低温衝
撃性等のバランスが従来の６のより格段にすぐれており
、とくに超低温の環境下において長ＩＩ間支障なく使用
することができる。[Effects of the Invention] As explained above, the sheet pallet of the present invention has water resistance,
It not only has good chemical properties such as oil resistance and chemical resistance and can withstand repeated use, but also has a much better balance of strength, rigidity, heat resistance J3, and low temperature impact resistance than the conventional 6. It can be used for long periods without problems in ultra-low temperature environments.
［実施例および比較例］
以下、本発明を実施例および比較例に基づいて具体的に
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。[Examples and Comparative Examples] The present invention will be specifically described below based on Examples and Comparative Examples, but the present invention is not limited thereto.
実ｍ例１〜８および比較例１〜５
ａ）成 分：
（Ａ）ポリプロピレンブロック共重合体（エチレン約５
重量％、Ｍ Ｉ １．５ｇ／１０ｍ１ｎ ）（Ｂ）ポ
リプロピレンブロック共重合体（エチレン約５重量％、
Ｍ Ｉ Ｏ，５ｇ／１０ｍ１ｎ ）ｂ）成 分：
（Ｃ）エチレン−ブテン−１共重合体
（密度０．８８７ｇ／α３）
三塩化バナジルーエヂルアルミニウムセスキクロリド触
媒を用いて、エチレンとブテン−１との重合を行なった
。Practical Examples 1 to 8 and Comparative Examples 1 to 5 a) Component: (A) Polypropylene block copolymer (ethylene about 5
Weight%, M I 1.5g/10m1n) (B) Polypropylene block copolymer (about 5% by weight of ethylene,
M I O, 5 g/10 m1n) b) Component: (C) Ethylene-butene-1 copolymer (density 0.887 g/α3) Ethylene and butene-1 copolymer (density 0.887 g/α3) Using a vanadyl trichloride-edyl aluminum sesquichloride catalyst, ethylene and butene-1 copolymer Polymerization with 1 was carried out.
（Ｄ）エチレン−プロピレン共重合体
（密度０．９００ｇ／ｃｍ３）
実質的に無水の塩化マグネシウム、１．２−ジクロルエ
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からなる触媒を用いて、エチレン
とプロピレンどの重合を行なった。(D) Ethylene-propylene copolymer (density 0.900 g/cm3) using a solid catalyst component obtained from substantially anhydrous magnesium chloride, 1,2-dichloroethane and titanium tetrachloride, and a catalyst consisting of triethylaluminum. , polymerization of ethylene and propylene.
（Ｅ）エチレン−プロピレン共重合体ゴム（密度０．８
６０ｇ／ｃｍ３、商品名：ＥＰＯ２Ｐ、日本合成ゴム曲
製）
（Ｆ）エチレン−７テン−１共市合体
（密１ｉ ０．９２５’ｉ／ｃｍ３）
ＣＤ）のエヂレンープロピレン共重合体と同一の触媒を
用いてエチレンとブテン−１との市合を行なった。(E) Ethylene-propylene copolymer rubber (density 0.8
60g/cm3, trade name: EPO2P, Japan Synthetic Rubber Co., Ltd.) (F) Ethylene-7ten-1 copolymer (density 1i 0.925'i/cm3) Same as the ethylene-propylene copolymer of CD) The commercialization of ethylene and butene-1 was carried out using the following catalyst.
上記ａ）、ｂ）両成分を所定の割合になるようトライブ
レンドした後、押出し機（１２０，φ）で、樹ｒｆｊ：
ｉ ｍ ＩＩＩ ２３５℃、冷却０−ルｍＪＩＱ １０
０℃、引取り速度２ＴｒＬ／ｎ＋ｉｎのシーｌ−成形条
件で、厚さ１．８゜Ｘ幅１，６００ｍ＋のシートを押出
し成形し、さらにシートの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。After tri-blending the above components a) and b) to a predetermined ratio, the tree rfj:
im III 235℃, cooling 0-lmJIQ 10
A sheet with a thickness of 1.8° and a width of 1,600 m+ was extruded under seal molding conditions of 0°C and a take-up speed of 2 TrL/n+in, and the upper surface of the sheet was further embossed to produce a sheet pallet material. did.
上記の各種シートパレット材料の成分性状、配合割合、
曲げ剛性率（ＡＳＴＭ ７４Ｇ＞およびぜい化温度＜Ａ
ＳＴＭ ７４Ｇ）を第１表に示す。Component properties, blending ratios, etc. of the above various sheet pallet materials,
Bending rigidity (ASTM 74G> and embrittlement temperature <A
STM 74G) are shown in Table 1.
表から明らかなように、本発明の実施例においてはいず
れも曲げ剛性率が高く、かつぜい化温度が］−分に低く
て剛性と耐低Ｎｍ撃性のバランスがすぐれＣいるが、比
較例の場合にはこれらのバランスが十分でなく、両者を
同時に満足させることができなかった。As is clear from the table, all of the examples of the present invention have high flexural rigidity, and the embrittlement temperature is as low as - minutes, resulting in an excellent balance between rigidity and low Nm impact resistance. In the case of the example, these balances were not sufficient and it was not possible to satisfy both at the same time.
手続補正書
昭和６１年２月２．ター日
特許庁長官 殿 ・（１゜（
特許庁審査官 殿） □ １、
事件の表示
昭和６１年 特 許 願 第 １６１７７ ＠２、発
明の名称
耐寒性シートパレット
３、補正をする者
事件との関係 出 願 人
名 称 日本石油化学株式会社
４、代理人
住 所 〒１０７東京都港区南青山−丁目１？ＩＩＭ
電話４７５−１５０１
氏名 （６２２２）弁理士秋元輝雄 パ％１８・・、”
５、補正命令の日付（自発）
／” 、−（発送日）昭和 年 月 日
、、−０６、補正の対象
１°゛°ゝ゛発明の詳細な説明の欄
７、補正の内容
（１）本願明細占第６頁４，５および８行の「１０分」
をそれぞれｒｌｏｍｉｎＪと補正する。Procedural amendment February 2, 1986. Dear Commissioner of the Japan Patent Office, (1゜(
Dear Patent Office Examiner) □ 1.
Indication of the case 1986 Patent application No. 16177 @2, name of the invention Cold-resistant sheet pallet 3, person making the amendment Relationship to the case Applicant name Nippon Petrochemical Co., Ltd. 4, agent address 107 Tokyo Minami Aoyama-chome 1, Minato-ku? IIM
Phone: 475-1501 Name (6222) Patent Attorney Teruo Akimoto %18...” 5. Date of amendment order (voluntary)
/” , - (Shipping date) Showa year month day
,,-06, Correction target
1°゛°ゝ゛Detailed Description of the Invention Column 7, Contents of Amendment (1) “10 minutes” on page 6 lines 4, 5 and 8 of the specification of the present application
are respectively corrected with rlominJ.
（２）同第１３真下から４行の「靭性」をｒ剛性ｊと補
正する。(2) Correct "toughness" in the 4th line from the bottom of No. 13 to r stiffness j.
（３）同第１９頁１０行のｒＡＳＴＭ ７４６Ｊをｒ
ＡｓＴＭ ７４７Ｊと補正する。(3) rASTM 746J on page 19, line 10
Correct with AsTM 747J.
（４）同第１４頁１６〜１８行の 「温度をもってＴｌｌとする。(4) Page 14, lines 16-18 “Let temperature be Tll.
ａ）成分およびｂ）成分のブレンド組成はａ）／ｂ）・
・・・・５〜２０である。」をｒ温度をもってｌ”ｍと
する。The blend composition of component a) and component b) is a)/b).
...5 to 20. '' is defined as l''m with r temperature.
ａ）成分およびｂ）成分のブレンド組成はａ）／ｂ）の
重量化が８０〜９５１５〜２０である。Ｊと補正する。The blend composition of component a) and component b) has a weight ratio of a)/b) of 80-9515-20. Correct it with J.
以上。that's all.
Claims (1)
びｂ）エチレンと炭素数３〜６のα−オレフィンとを重
合させて得られる下記 （ｉ）密度０．８７０〜０．９１０ｇ／ｃｍ＾３（ｉｉ
）示差走査熱量測定法（ＤＳＣ）による最大ピーク温度
が５０℃以上 の性状を満足するエチレン・α−オレフィン共重合体５
〜２０重量％からなり、かつ上面の摩擦係数が下面の摩
擦係数より大きく、厚さが０．３〜１０ｍｍであるシー
ト状の耐寒性シートパレット。(1) a) 80 to 95% by weight of a propylene polymer, and b) the following (i) density 0.870 to 0.910 g/cm obtained by polymerizing ethylene and an α-olefin having 3 to 6 carbon atoms. ＾3(ii
) Ethylene/α-olefin copolymer 5 that satisfies the property that the maximum peak temperature measured by differential scanning calorimetry (DSC) is 50°C or higher
A cold-resistant sheet pallet in the form of a sheet, consisting of ~20% by weight, the coefficient of friction of the upper surface being larger than the coefficient of friction of the lower surface, and the thickness of the pallet being 0.3 to 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61016177A JPS62174233A (en) | 1986-01-28 | 1986-01-28 | Low-temperature-resistant sheet pallet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61016177A JPS62174233A (en) | 1986-01-28 | 1986-01-28 | Low-temperature-resistant sheet pallet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62174233A true JPS62174233A (en) | 1987-07-31 |
| JPH0588726B2 JPH0588726B2 (en) | 1993-12-24 |
Family
ID=11909225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61016177A Granted JPS62174233A (en) | 1986-01-28 | 1986-01-28 | Low-temperature-resistant sheet pallet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62174233A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50155583A (en) * | 1974-06-06 | 1975-12-15 | ||
| JPS5516821U (en) * | 1978-07-17 | 1980-02-02 | ||
| JPS5825693A (en) * | 1981-08-08 | 1983-02-15 | 松下電器産業株式会社 | Track display having recording and reproducing function |
-
1986
- 1986-01-28 JP JP61016177A patent/JPS62174233A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50155583A (en) * | 1974-06-06 | 1975-12-15 | ||
| JPS5516821U (en) * | 1978-07-17 | 1980-02-02 | ||
| JPS5825693A (en) * | 1981-08-08 | 1983-02-15 | 松下電器産業株式会社 | Track display having recording and reproducing function |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0588726B2 (en) | 1993-12-24 |
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