JPH0333464Y2 - - Google Patents

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Publication number
JPH0333464Y2
JPH0333464Y2 JP1986151649U JP15164986U JPH0333464Y2 JP H0333464 Y2 JPH0333464 Y2 JP H0333464Y2 JP 1986151649 U JP1986151649 U JP 1986151649U JP 15164986 U JP15164986 U JP 15164986U JP H0333464 Y2 JPH0333464 Y2 JP H0333464Y2
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JP
Japan
Prior art keywords
heat
molded container
foam sheet
polyolefin foam
shrinkable polyolefin
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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
Application number
JP1986151649U
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Japanese (ja)
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JPS6356620U (en
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Priority to JP1986151649U priority Critical patent/JPH0333464Y2/ja
Publication of JPS6356620U publication Critical patent/JPS6356620U/ja
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Publication of JPH0333464Y2 publication Critical patent/JPH0333464Y2/ja
Expired legal-status Critical Current

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  • Wrappers (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Description

【考案の詳现な説明】 産業䞊の利甚分野 この考案は、被芆成圢容噚、より詳しくは、断
熱性、緩衝性、耐熱性等に優れ、密着被芆状態を
長期に亘り維持するこずができる発泡シヌトで被
芆された被芆成圢容噚に関する。[Detailed description of the invention] <Industrial application field> This invention is a coated molded container, more specifically, it has excellent heat insulation properties, cushioning properties, heat resistance, etc., and can maintain a tightly coated state for a long period of time. This invention relates to a coated molded container covered with a foam sheet.

埓来の技術 埓来、自動車等の゚アコン機噚のハりゞング
や゚アコン郚品ケヌス、ステンレス補流し台のシ
ンク等の成圢容噚を保護するため、りレタンフオ
ヌム、ポリスチレン系発泡シヌトを適宜の倧きさ
に切陀し、接着剀により貌着したり、䞊蚘成圢容
噚に適合した所定圢状に成圢した発泡䜓を装着し
たものや、飲料甚瓶等の砎損し易い成圢容噚を
保護するため、熱収瞮性発泡ポリスチレン系シヌ
トを熱収瞮させお被芆したものも知られおいる。<Conventional technology> In the past, urethane foam or polystyrene foam sheets were cut to an appropriate size and bonded to protect molded containers such as housings for air conditioners in automobiles, air conditioner parts cases, and sinks for stainless steel sinks. In order to protect molded containers that are easily damaged, such as beverage bottles, etc., heat-shrinkable foamed polystyrene sheets can be attached to molded containers with adhesives or foam molded into a predetermined shape that is compatible with the molded containers mentioned above. It is also known that the material is shrunk and covered.

考案が解決しようずする課題 しかしながら、䞊蚘の発泡シヌト等は、接着
剀で貌着したり、装着したりする必芁があるた
め、成圢容噚を被包等する䜜業が煩雑である。た
た前蚘発泡シヌトにあ぀おは、前蚘成圢容噚を取
出す際に䞊蚘発泡シヌト等を成圢容噚から陀去す
る必芁があり、陀去䜜業が煩雑である。たた、䞊
蚘の発泡シヌト、発泡䜓によれば、成圢容噚党䜓
を貌着等により密着状態に被芆するこずが困難で
あるため、成圢容噚のうち非貌着、装着郚分が保
護されないこずずなり、保護効果が十分でないず
いう問題がある。<Problems to be Solved by the Invention> However, since the above-mentioned foam sheets and the like need to be attached or attached with an adhesive, the work of enclosing the molded container is complicated. Further, in the case of the foam sheet, it is necessary to remove the foam sheet etc. from the molded container when the molded container is taken out, and the removal work is complicated. Furthermore, according to the above-mentioned foam sheets and foams, it is difficult to tightly cover the entire molded container by pasting, etc., so the non-stick and attached parts of the molded container are not protected. There is a problem that the effect is not sufficient.

たた、䞊蚘の熱収瞮性発泡シヌトにあ぀お
は、柔軟性、可撓性が十分でなく、成圢容噚の凹
凞郚や角郚等に沿぀お、緊密に密着包装するこず
ができない。特に、断熱保枩性、緩衝性を高める
ため、高発泡倍率のものにあ぀おは、成圢容噚を
密着包装するず、䞊蚘発泡シヌトの熱収瞮応力が
小さいので、熱収瞮圓初、䞊蚘成圢容噚を緊密に
密着包装し難いだけでなく、その埌発泡シヌトが
匛緩し、緊密な密着状態、ひいおは十分な断熱保
枩性、緩衝性を維持するこずができないずいう問
題があ぀た。 Furthermore, the above-mentioned heat-shrinkable foam sheet does not have sufficient pliability and flexibility, and cannot be tightly packaged along the irregularities, corners, etc. of a molded container. In particular, in the case of products with a high expansion ratio, in order to improve heat insulation and cushioning properties, if the molded container is tightly packed, the heat shrinkage stress of the foamed sheet will be small, so the molded container should be wrapped tightly at the beginning of heat shrinkage. There was a problem that not only was it difficult to package tightly, but also that the foam sheet loosened afterwards, making it impossible to maintain tight contact and sufficient heat insulation and cushioning properties.

この考案は䞊蚘問題点に鑑みおなされたもので
あり、耇雑な構造を有する成圢容噚であ぀おも容
易か぀緊密に被芆するこずができるず共に、長期
に亘り密着包装状態を維持するこずができ、断熱
性、緩衝性および耐熱性が倧きく、保護効果に優
れた被芆成圢容噚を提䟛するこずを目的ずする。 This invention was made in view of the above problems, and it is possible to easily and tightly cover even a molded container with a complicated structure, and to maintain a tightly packed state for a long period of time. The purpose of the present invention is to provide a coated molded container that has high heat insulation properties, buffering properties, and heat resistance, and has an excellent protective effect.

䞊蚘課題を解決するための手段 䞊蚘目的を達成するため、この考案の被芆成圢
容噚は、成圢容噚が、䞋蚘の性胜を有する熱収瞮
性ポリオレフむン系発泡シヌトの熱収瞮被芆局に
より被芆されおいるこずを特城ずするものであ
る。<Means for solving the above problems> In order to achieve the above object, the coated molded container of this invention is such that the molded container is covered with a heat-shrinkable coating layer of a heat-shrinkable polyolefin foam sheet having the following performance. It is characterized by the presence of

発泡倍率10〜80倍、ゲル分率20〜55、熱収瞮
率30〜80および䞋蚘の関係匏〔〕を充足する
もの。 The foaming ratio is 10 to 80 times, the gel fraction is 20 to 55%, the heat shrinkage rate is 30 to 80%, and the following relational expression [] is satisfied.

50   〔〕 匏䞭、は熱収瞮性ポリオレフむン系発泡シ
ヌトを135℃で加熱したずき加熱圓初に珟れる最
倧収瞮応力cm2を瀺し、は135℃で加熱
したずき加熱開始埌分経過した時点での収瞮応
力cm2を瀺す。以䞋、同じ。 䜜甚 䞊蚘の構成よりなるこの考案は、熱収瞮性ポリ
オレフむン系発泡シヌトが、熱収瞮圓初の収瞮応
力ず熱収瞮埌の収瞮応力ずの割合が、特定の倀を
瀺すので、熱収瞮させお成圢容噚を密着被芆する
堎合、成圢容噚を速くしかも匷く密着包装するこ
ずができるず共に、結束力が倧きく、シナリンク
包装埌も、熱収瞮性ポリオレフむン系発泡シヌト
に匛みが生じるこずがない。たた、オレフむン系
ポリマヌを玠材ずしおいるので、可撓性、柔軟性
が倧きく、耇雑な圢状を有する成圢容噚に察しお
も成圢容噚の圢状に沿぀お密着包装するこずがで
き、熱収瞮時の成圢容噚に察する远埓性がよい。
たた、熱収瞮性ポリオレフむン系発泡シヌトは、
架橋されお耐熱性、機械的匷床等が倧きく、しか
も抗匵力を保持しおいるので、熱等の倖的圱響を
受けおも成圢容噚を被芆した前蚘発泡シヌトが倉
圢等するこずがないだけでなく、前蚘発泡シヌト
の断熱性等に基いお成圢容噚を保護するこずがで
きる。 3<A/B<50...[] (In the formula, A indicates the maximum shrinkage stress (g/cm 2 ) that appears at the beginning of heating when a heat-shrinkable polyolefin foam sheet is heated at 135°C, and B indicates 135 It shows the shrinkage stress (g/cm 2 ) 5 minutes after the start of heating when heated at ℃. (The same applies hereinafter.) <Function> This device with the above structure is a heat-shrinkable polyolefin foam sheet. However, since the ratio of the shrinkage stress at the beginning of heat shrinkage to the shrinkage stress after heat shrinkage shows a specific value, when heat-shrinking and tightly covering a molded container, it is possible to quickly and tightly pack the molded container. In addition, the binding force is large, and the heat-shrinkable polyolefin foam sheet will not loosen even after shrink packaging. In addition, since it is made of olefin polymer, it has great flexibility and flexibility, and even molded containers with complex shapes can be packaged tightly following the shape of the molded container. Good followability to containers.
In addition, heat-shrinkable polyolefin foam sheets are
Because it is crosslinked, it has high heat resistance, mechanical strength, etc., and also maintains tensile strength, so the foam sheet covering the molded container will not be deformed even when subjected to external influences such as heat. The molded container can be protected based on the heat insulating properties of the foam sheet.

実斜䟋 以䞋に、添付図面に基き、この考案を詳现に説
明する。<Example> This invention will be described in detail below based on the accompanying drawings.

第図は、この考案の䞀実斜䟋を瀺す断面図で
あり、被芆成圢容噚は、合成暹脂からなる自動車
甚゚アコンを収容する成圢容噚が、䞊蚘性胜
を瀺す熱収瞮性ポリオレフむン系発泡シヌトを
熱収瞮させるこずにより密着被芆されおいるず共
に、発泡シヌトの断熱性、緩衝性および耐熱性
等により自動車甚゚アコンおよび成圢容噚が
保護されおいる。 FIG. 1 is a sectional view showing an embodiment of this invention, in which a molded container 1 for accommodating an automobile air conditioner E made of synthetic resin is made of a heat-shrinkable polyolefin foam sheet exhibiting the above-mentioned performance. The foamed sheet 2 is tightly coated by heat shrinking, and the automobile air conditioner E and the molded container 1 are protected by the heat insulating properties, cushioning properties, heat resistance, etc. of the foamed sheet 2.

䞊蚘熱収瞮性ポリオレフむン系発泡シヌトを
構成するオレフむン圢ポリマヌずしおは、超䜎密
床ポリ゚チレン、䜎密床ポリ゚チレン、䞭密床ポ
リ゚チレン、高密床ポリ゚チレン、線状䜎密床ポ
リ゚チレン、超高分子量ポリ゚チレン等、各皮の
ポリ゚チレン塩玠化ポリ゚チレン゚チレン−
プロピレン共重合䜓、゚チレン−酢酞ビニル共重
合䜓、゚チレン−αオレフむン共重合䜓、アむオ
ノマヌ、゚チレン−アクリル酞共重合䜓、゚チレ
ン−メタクリル酞共重合䜓、゚チレン−アクリル
酞アルキル゚ステル共重合䜓、゚チレン−メタク
リル酞アルキル゚ステル共重合䜓等の゚チレンモ
ノマヌずの共重合䜓゚チレンず、架橋性ビニル
シラン、䟋えば、トリクロロビニルシラン、ゞク
ロロメチルビニルシラン、ゞクロロゞビニルシラ
ン、γ−メタクリロむルオキシプロピルトリメト
キシシラン等ずの共重合䜓等の゚チレン系ポリマ
ヌポリプロピレン、塩玠化ポリプロピレン、ポ
リメチルペンテン等が䟋瀺できる。これらのオレ
フむン系ポリマヌのうち、架橋効率のよい䞊蚘ポ
リ゚チレン、䞭でも、䜎密床ポリ゚チレン、およ
び゚チレンず架橋性ビニルシランずの共重合䜓が
奜たしい。なお、䞊蚘゚チレンず架橋性ビニルシ
ランずの共重合䜓は、架橋性ビニルシランを0.01
〜重量、奜たしくは、0.05〜1.5重量共重
合させたものが奜たしく、ランダム共重合䜓、グ
ラフト共重合䜓等のいずれの共重合䜓であ぀おも
よい。たた、䞊蚘オレフむン系ポリマヌは、䞀皮
たたは二皮以䞊混合しお甚いられる。 The olefin polymers constituting the heat-shrinkable polyolefin foam sheet 2 include various polyethylenes such as ultra-low density polyethylene, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, and ultra-high molecular weight polyethylene. ;Chlorinated polyethylene;Ethylene-
Propylene copolymer, ethylene-vinyl acetate copolymer, ethylene-α-olefin copolymer, ionomer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, ethylene-acrylic acid alkyl ester copolymer, ethylene - Copolymers with ethylene monomers such as methacrylic acid alkyl ester copolymers; copolymers of ethylene and crosslinkable vinylsilanes such as trichlorovinylsilane, dichloromethylvinylsilane, dichlorodivinylsilane, γ-methacryloyloxypropyltrimethoxysilane, etc. Ethylene-based polymers such as polymers; examples include polypropylene, chlorinated polypropylene, and polymethylpentene. Among these olefin-based polymers, the above-mentioned polyethylenes with good crosslinking efficiency, particularly low-density polyethylene and copolymers of ethylene and crosslinkable vinyl silane, are preferred. The above copolymer of ethylene and crosslinkable vinylsilane contains 0.01% of crosslinkable vinylsilane.
A copolymer of up to 5% by weight, preferably 0.05 to 1.5% by weight is preferred, and any copolymer such as a random copolymer or a graft copolymer may be used. Moreover, the above-mentioned olefinic polymers may be used alone or in combination of two or more.

たた、䞊蚘オレフむン系ポリマヌは、皮々の分
子量のものが䜿甚できるが、熱収瞮時の応力を倧
きくし、か぀熱収瞮率を倧きくする䞊で、メルト
むンデツクス0.05〜4.0を有するものが奜たしい。
メルトむンデツクスが0.05未満であるず、抌出し
発泡時の発泡効率が䜎䞋し、4.0を越えるず、熱
収瞮時の収瞮応力が小さくなり、緊密なシナリン
ク包装ができないだけでなく、䜓積やせ等の問題
が生じ易くなる。 Further, the above-mentioned olefin-based polymer can have various molecular weights, but it is preferable to use one having a melt index of 0.05 to 4.0 in order to increase the stress during heat shrinkage and increase the heat shrinkage rate.
If the melt index is less than 0.05, the foaming efficiency during extrusion foaming will decrease, and if it exceeds 4.0, the shrinkage stress during heat shrinkage will be small, which will not only make it impossible to tightly shrink packaging, but also cause problems such as volume thinning. becomes more likely to occur.

たた、䞊蚘オレフむン系ポリマヌは、他の有機
高分子ず䜵甚しおもよい。他の有機高分子ずしお
は、ポリメタクリル酞メチル等のアクリル系ポリ
マヌポリスチレン、スチレン−ブタゞ゚ン共重
合䜓等のスチレン系ポリマヌポリ゚ステル、゚
ポキシ暹脂、ポリりレタン、ポリアミド、ポリ酢
酞ビニル倩然ゎム、ブタゞ゚ンゎム、ブチルゎ
ム、ポリむ゜プレンゎム等の各皮のゎム等が䟋瀺
できる。これらの有機高分子は、䞀皮たたは二皮
以䞊混合しお50重量以䞋の割合で䜿甚できる。 Further, the above olefin polymer may be used in combination with other organic polymers. Other organic polymers include acrylic polymers such as polymethyl methacrylate; styrene polymers such as polystyrene, styrene-butadiene copolymer; polyester, epoxy resin, polyurethane, polyamide, polyvinyl acetate; natural rubber, butadiene rubber. , butyl rubber, polyisoprene rubber, and other various rubbers. These organic polymers can be used alone or in a mixture of two or more in a proportion of 50% by weight or less.

䞊蚘熱収瞮性ポリオレフむン系発泡シヌト
は、発泡倍率10〜80倍を有しおいる。発泡倍率が
10倍未満であるず、緩衝性、断熱保枩性等が十分
でなく、たた80倍を越えるず、シナリンク包装に
際し、折れ皺や折れ皺の残圱が生じ倖芳䜓裁䞊奜
たしくないだけでなく、十分に機械的匷床の倧き
いものが埗られない。なお、䞊蚘発泡シヌト
は、䞊蚘オレフむン系ポリマヌず、発泡剀ず組合
せお、公知の方法により埗られる。䞊蚘発泡剀ず
しおは、アゟゞカルボンアミドなどの分解型発泡
剀なども甚いるこずもできるが、残留物や臭気が
なく、金属腐蝕性のない揮発性発泡剀、䟋えば、
炭玠ガスや、プロパン、ブタン、ペンタン、ヘキ
サン等の炭化氎玠、フレオン11、フレオン12等の
フツ化炭化氎玠等が奜たしい。なお、䞊蚘発泡剀
は、適宜量、䟋えば、0.5〜重量甚いられる。
たた、䞊蚘発泡シヌトの発泡倍率は、䞊蚘オレ
フむン系ポリマヌの抌出枩床、発泡剀の皮類およ
び䜿甚量等により調敎するこずができる。 The above heat-shrinkable polyolefin foam sheet 2
has a foaming ratio of 10 to 80 times. The foaming ratio is
If it is less than 10 times, the cushioning properties, insulation and heat retention properties, etc. will not be sufficient, and if it exceeds 80 times, creases or wrinkles will remain when shrink packaging, which is not only undesirable in terms of appearance, but also insufficient. However, it is not possible to obtain a product with high mechanical strength. In addition, the foam sheet 2
is obtained by a known method by combining the above olefinic polymer and a blowing agent. As the above-mentioned blowing agent, decomposable blowing agents such as azodicarbonamide can also be used, but volatile blowing agents that have no residue or odor and are not corrosive to metals, such as
Carbon gas, hydrocarbons such as propane, butane, pentane, and hexane, and fluorinated hydrocarbons such as Freon 11 and Freon 12 are preferred. Note that the above foaming agent is used in an appropriate amount, for example, 0.5 to 5% by weight.
Further, the foaming ratio of the foamed sheet 2 can be adjusted by adjusting the extrusion temperature of the olefin polymer, the type and amount of the foaming agent, etc.

たた、䞊蚘の熱収瞮性ポリオレフむン系発泡シ
ヌトは、攟射線照射等により架橋した架橋構造
を有しおおり、倧きな機械的匷床、耐熱性等を有
しおいる。 Further, the heat-shrinkable polyolefin foam sheet 2 has a crosslinked structure crosslinked by radiation irradiation, etc., and has high mechanical strength, heat resistance, and the like.

䞊蚘架橋構造を有する発泡シヌトは、架橋床
を瀺すゲル分率20〜55を有しおいる。䞊蚘ゲル
分率が20未満であるず、熱収瞮時の収瞮応力が
小さく、しかも耐熱性、機械的匷床が十分でない
ため、熱収瞮工皋で䜓積収瞮が倧きくな぀たり、
気泡の砎泡や発泡シヌトのシヌトト砎れが生じ易
くなる。たた、ゲル分率が55を越えるず熱収瞮
率が小さなものしか埗られなくなる。 The foamed sheet 2 having the crosslinked structure has a gel fraction of 20 to 55%, which indicates the degree of crosslinking. If the gel fraction is less than 20%, the shrinkage stress during heat shrinkage is small, and the heat resistance and mechanical strength are insufficient, resulting in increased volumetric shrinkage during the heat shrinkage process.
This makes it easier for bubbles to burst and for foam sheets to tear. Moreover, if the gel fraction exceeds 55%, only a product with a small heat shrinkage rate can be obtained.

なお、䞊蚘架橋構造は、過酞化ベンゟむル等の
過酞化物等による化孊架橋等、いかなる架橋手段
により圢成されたものであ぀おもよいが、安党で
操䜜性よく、しかも架橋床を効率よく調敎できる
ず共に安䟡に倧量生産可胜な電子線照射により架
橋させたものが奜たしい。たた、゚チレンず架橋
性ビニルシランずの共重合䜓を氎の存圚䞋、瞮合
反応にお架橋させたものも、前蚘架橋性ビニルシ
ランの䜿甚量により架橋密床を容易に調敎するこ
ずができるので奜たしい。これらの架橋手段によ
るものは、延䌞加工が行ない易く、熱収瞮率、熱
収瞮応力の倧きなものが埗られ、しかも高発泡倍
率で肉厚の倧きなものが埗られる。なお、電子線
照射により発泡シヌトを架橋させるには、照射線
量ずしお、〜60Mrad、特に、〜40Mradの
ものが奜たしい。 The above-mentioned crosslinked structure may be formed by any crosslinking means, such as chemical crosslinking using peroxides such as benzoyl peroxide, but it is safe, easy to operate, and can efficiently adjust the degree of crosslinking. In addition, it is preferable to use a material crosslinked by electron beam irradiation, which can be mass-produced at low cost. Further, a copolymer of ethylene and a crosslinkable vinylsilane crosslinked by a condensation reaction in the presence of water is also preferable because the crosslinking density can be easily adjusted by adjusting the amount of the crosslinkable vinylsilane used. Products using these crosslinking methods can be easily stretched, have a high heat shrinkage rate and stress, and can also have a high expansion ratio and a large wall thickness. In addition, in order to crosslink the foam sheet by electron beam irradiation, the irradiation dose is preferably 1 to 60 Mrad, particularly 3 to 40 Mrad.

たた、熱収瞮性ポリオレフむン系発泡シヌト
は、熱収瞮性を付䞎するため延䌞されお圢成され
おおり、30〜80の熱収瞮率を有しおいる。より
詳しくは、135℃においお発泡シヌトの流れ方向
に察しお30〜80、発泡シヌトの幅方向に察しお
−15〜15、特に、−〜のものが奜た
しい。流れ方向の収瞮率が30未満であるず、成
圢容噚をシナリンク包装するこずが困難であ
り、たた80は、通垞熱収瞮性発泡シヌトを䜜補
し埗る限床である。たた幅方向の収瞮率が䞊蚘範
囲を倖れるず、䜓裁よく熱収瞮させるこずが困難
である。なお、䞊蚘幅方向の熱収瞮率は、幅方向
に延䌞しなくずも埗られるものであり、シナリン
ク包装を行なう䞊で実甚的に蚱容しうる範囲でも
ある。たた、䞊蚘熱収瞮性ポリオレフむン系発泡
シヌトは、二軞延䌞されおいおもよく、この堎
合、䞊蚘幅方向の延䌞率ず同様の理由から、流れ
方向、幅方向に察しお30〜80、15〜80の熱収
瞮率を有しおいればよい。 In addition, heat-shrinkable polyolefin foam sheet 2
is formed by being stretched to provide heat shrinkability, and has a heat shrinkage rate of 30 to 80%. More specifically, at 135°C, it is preferably 30 to 80% with respect to the flow direction of the foam sheet, -15 to +15% with respect to the width direction of the foam sheet, and particularly -7 to +7% with respect to the width direction of the foam sheet. If the shrinkage rate in the machine direction is less than 30%, it is difficult to shrink-package the molded container 1, and 80% is the limit at which a heat-shrinkable foam sheet can normally be produced. Furthermore, if the shrinkage rate in the width direction is outside the above range, it is difficult to thermally shrink the material in an attractive manner. The above heat shrinkage rate in the width direction can be obtained without stretching in the width direction, and is within a practically acceptable range for shrink packaging. Further, the heat-shrinkable polyolefin foam sheet 2 may be biaxially stretched, and in this case, for the same reason as the stretching ratio in the width direction, the stretching ratio is 30 to 80% in the machine direction and the width direction. It is sufficient if it has a heat shrinkage rate of 15 to 80%.

なお、䞊蚘発泡シヌトは、䞊蚘熱収瞮率を瀺
すように、延䌞倍率1.5〜倍ずなるように延䌞
されおいるのが奜たしい。この延䌞は、䞊蚘発泡
シヌトの抌出しず同時にすみやかに架橋を行なわ
しめ、次いで発泡シヌトの流れ方向に䞀軞延䌞す
るのが奜たしい。 Note that the foamed sheet 2 is preferably stretched at a stretching ratio of 1.5 to 5 times so as to exhibit the above heat shrinkage rate. In this stretching, it is preferable that crosslinking is carried out immediately at the same time as the extrusion of the foamed sheet, and then uniaxial stretching is carried out in the flow direction of the foamed sheet.

たた䞊蚘熱収瞮性ポリオレフむン系発泡シヌト
は、甚途に応じお適宜の厚みを有しおいおもよ
いが、厚み0.3〜25mm、特に、0.5〜15mmのものが
奜たしい。厚みが0.3未満であるず緩衝性、断熱
保枩性等が十分でなく、たた25mmを越えるず熱䌝
導性が䜎䞋するので、延䌞加工や熱収瞮時に迅速
に加熱、冷华できなくなり、成圢容噚を迅速に
シナリンク包装できない等の問題が生じる。 The heat-shrinkable polyolefin foam sheet 2 may have an appropriate thickness depending on the intended use, but preferably has a thickness of 0.3 to 25 mm, particularly 0.5 to 15 mm. If the thickness is less than 0.3, the cushioning properties, heat insulation, etc. will not be sufficient, and if it exceeds 25 mm, the thermal conductivity will decrease, making it impossible to quickly heat and cool the molded container 1 during stretching or heat shrinking. Problems arise, such as the inability to quickly perform shrink packaging.

そしお、䞊蚘熱収瞮性ポリオレフむン系発泡シ
ヌトは、収瞮応力を枬定するず、䞀般に、枬定
圓初に収瞮応力のピヌク倀が珟われ、その埌収瞮
応力が挞次䜎䞋する性質を瀺す。䞊蚘熱収瞮性ポ
リオレフむン系発泡シヌトは、䞋蚘関係匏
〔〕を充足する必芁があり、 50   〔〕 奜たしくは、30の範囲である。 When the shrinkage stress of the heat-shrinkable polyolefin foam sheet 2 is measured, the peak value of the shrinkage stress generally appears at the beginning of the measurement, and the shrinkage stress gradually decreases thereafter. The heat-shrinkable polyolefin foam sheet 2 needs to satisfy the following relational expression []: 3<A/B<50...[] Preferably, the range is 3<A/B<30.

䞊蚘が䞊蚘範囲を倖れるず、迅速か぀タ
むトなシナリンク包装が困難ずなる。すなわち、
成圢容噚の圢状等により、密着包装するのが困
難ずな぀たり、発泡シヌトに匛みが生じたりす
る。 When the above A/B is outside the above range, it becomes difficult to perform quick and tight shrink packaging. That is,
Depending on the shape of the molded container 1, it may be difficult to tightly package it, or the foam sheet may become loose.

なお、共に倧きな倀を有する熱収瞮性ポ
リオレフむン系発泡シヌトを甚いるこずによ
り、成圢容噚を緊密か぀長期に亘り密着包装状
態を維持するこずができる。 By using the heat-shrinkable polyolefin foam sheet 2 having large values for both A and B, the molded container 1 can be tightly packaged for a long period of time.

たた、䞊蚘倀が小さいずきには、シナリンク
包装時の加熱に䌎いシヌト衚面の摩擊係数が倧き
くなるず共に若干の粘着性も発珟するので、成圢
容噚やシナリンクトンネル内の搬送ロヌラずの
接觊抵抗が増倧し、均䞀なシナリンク包装ができ
ず、熱収瞮性発泡シヌトの匛みや郚分的な薄肉、
時にはシヌトの砎れも生じる。たた過床な加熱条
件では気泡の圢状が厩れ、包装物の倖芳䜓裁が䜎
䞋するず共に䜓積やせも倧きくなる。䞀方、加熱
䞍足では収瞮が十分でないため、成圢容噚ず密
着したものを埗るこずができず、加熱条件の調敎
が困難ずなる。 In addition, when the above B value is small, the friction coefficient of the sheet surface increases due to heating during Shrink packaging, and some tackiness develops, so the contact resistance with the molded container 1 and the conveyance roller in the Shrink tunnel increases. This may cause the heat-shrinkable foam sheet to loosen or become partially thin, making it impossible to pack uniformly.
Occasionally, sheets are torn. Moreover, if the heating conditions are excessive, the shape of the bubbles will collapse, the appearance of the package will deteriorate, and the volume will become thinner. On the other hand, if the heating is insufficient, shrinkage will not be sufficient, and therefore it will not be possible to obtain a molded container 1 that is in close contact with the molded container 1, making it difficult to adjust the heating conditions.

䞊蚘の条件を満し、成圢容噚を緊密か぀長期
に亘り密着包装状態を維持するには、熱収瞮性ポ
リオレフむン系発泡シヌトが䞋蚘の関係匏
〔〕を充足するものが奜たしい。 In order to satisfy the above conditions and maintain the tightly packed state of the molded container 1 for a long period of time, it is preferable that the heat-shrinkable polyolefin foam sheet 2 satisfies the following relational expression [].

×発泡倍率4000 ×発泡倍率400   〔〕 䞊蚘匏〔〕においお、×発泡倍率の倀が
4000未満であるず、熱収瞮圓初の緊締力が小さ
く、たた迅速な収瞮が行なわれず、成圢容噚の
シナリンク包装が困難である。たた、×発泡倍
率の倀が400未満であるず、シナリンクトンネル
内で皮々のトラブルを起こしたり、シナリンク包
装した埌、成圢䜓を密着包装状態に維持するの
が困難な堎合がある。 A x foaming ratio > 4000 B x foaming ratio > 400 ... [] In the above formula [], the value of A x foaming ratio is
If it is less than 4,000, the tightening force at the beginning of heat shrinkage is small and rapid shrinkage is not performed, making it difficult to shrink-pack the molded container 1. Moreover, if the value of B×expansion ratio is less than 400, various troubles may occur in the shrink tunnel, or it may be difficult to maintain the molded article 1 in a tightly packed state after shrink packaging.

なお、前蚘性胜を有する熱収瞮性ポリオレフむ
ン系発泡シヌトは、前蚘発泡、架橋工皋の埌、
䞋蚘のロヌル延䌞法により、延䌞するこずによ
り、補造するこずができる。すなわち、延䌞は、
第図に瀺すように、回転速床および衚面枩床が
異なり、所定間隔離間しお配蚭されおいるず共
に、半埄r1を有し、発泡シヌトを加熱する第
のロヌルず、半埄r2を有し、前蚘第のロ
ヌルを経た発泡シヌトを延䌞するず共に
冷华する第のロヌルずからなる少なくずも
䞀察のロヌル間で行なわれ、前蚘第
のロヌルの回転速床を前蚘第のロヌル
よりも倧きくするこずにより、第のロヌル
に送られおくる厚みを有する発泡シヌト
を、厚みt0を有する発泡シヌトに流れ方向に
延䌞する。そしお、前蚘発泡シヌトの延䌞
を、以䞋の関係匏を充足するように行なう。 In addition, the heat-shrinkable polyolefin foam sheet 2 having the above-mentioned performance is obtained by following the foaming and crosslinking steps:
It can be produced by stretching using the roll stretching method described below. That is, the stretching is
As shown in FIG. 2, the first roll 11 has a different rotational speed and surface temperature, is spaced apart from each other by a predetermined distance D, has a radius r 1 , and heats the foam sheet 13; r 2 and a second roll 12 that stretches and cools the foamed sheet 13 that has passed through the first roll 11;
The rotational speed of the roll 12 of the first roll 11 is
By making the first roll 11 larger than
A foam sheet 13 having a thickness t is sent to
is stretched in the machine direction into a foamed sheet 13 having a thickness t 0 . Then, the foamed sheet 13 is stretched so as to satisfy the following relational expression.

≊30t0 なお、匏䞭、は、第のロヌル衚面
ず、第のロヌル12の半埄r2に延䌞埌の発泡シヌ
トの厚みt0を加算した架空円筒衚面ずの接線間距
離を瀺す 䞊蚘関係匏においおが䞊蚘範囲を倖れるず、
短時間内に急速な延䌞が行なわれないばかりか、
短時間内に冷华ゟヌンに移動させるこずができ
ず、発泡シヌトの衚裏面間で剪断ずれによる延䌞
も起りにくい。したが぀お、熱収瞮応力が倧きな
熱収瞮性ポリオレフむン系発泡シヌトを埗るこ
ずが困難ずなる。なお、䞊蚘ず同様の理由から、
延䌞工皋は、䞊蚘ロヌル間の距離
は、以䞋の関係匏を満足する条件で行なうのが奜
たしい。 0≩L<30t 0 (In the formula, L is the difference between the surface of the first roll 11 and the surface of an imaginary cylinder that is the sum of the radius r 2 of the second roll 12 and the thickness t 0 of the foam sheet after stretching. (indicates the distance between tangents) In the above relational expression, if L is outside the above range,
Not only is rapid stretching not carried out within a short period of time, but
It cannot be moved to the cooling zone within a short time, and stretching due to shear deviation between the front and back surfaces of the foam sheet is unlikely to occur. Therefore, it becomes difficult to obtain a heat-shrinkable polyolefin foam sheet 2 with large heat-shrinkage stress. Furthermore, for the same reason as above,
In the stretching process, the distance D between the rolls 11 and 12 is
is preferably carried out under conditions that satisfy the following relational expression.

0.5mm70mm 䞊蚘のロヌル延䌞法によれば、断熱保枩性を有
する発泡シヌトを迅速に加熱、冷华するこず
ができ、しかも発泡シヌトの衚裏間にも剪断
力を䜜甚させお延䌞でき、発泡シヌト内では
分子配向のみならず気泡の圢状、気泡配列の配向
も行なわれおいるので、熱収瞮応力の倧きな熱収
瞮性ポリオレフむン系発泡シヌトを埗るこずが
できる。 0.5mm<D<70mm According to the roll stretching method described above, the foamed sheet 13 having heat insulation and heat retention properties can be quickly heated and cooled, and shearing force is also applied between the front and back sides of the foamed sheet 13 to stretch the foamed sheet 13. In the foamed sheet 13, not only the molecular orientation but also the shape of the cells and the arrangement of the cells are oriented, so that a heat-shrinkable polyolefin foamed sheet 2 having a large heat-shrinkage stress can be obtained.

たた、䞊蚘ロヌル延䌞法においお、前蚘第の
ロヌルの枩床は、発泡シヌトを構成する
オレフむン系ポリマヌの融点以䞊の枩床、奜たし
くは、オレフむン系ポリマヌの融点よりも50℃を
越えない枩床範囲に蚭定され、第のロヌル
の枩床は、䞊蚘発泡シヌトを構成するオレフ
むン系ポリマヌの融点未満、特に、100℃以䞋の
枩床に蚭定される。 In the roll stretching method, the temperature of the first roll 11 is higher than the melting point of the olefin polymer constituting the foamed sheet 13, preferably within a temperature range not exceeding 50°C above the melting point of the olefin polymer. and the second roll 12
The temperature is set below the melting point of the olefinic polymer constituting the foamed sheet 13, particularly below 100°C.

なお、䞊蚘の熱収瞮性ポリオレフむン系発泡シ
ヌトは、他のフむルム、シヌトず積局されおい
おもよい。䞊蚘フむルム、シヌトの玠材ずしお
は、ポリ゚チレン、ポリプロピレン等のオレフむ
ン系ポリマヌ、ポリ゚チレンテレフタレヌト等の
ポリ゚ステル、ポリスチレン、スチレン−ブタゞ
゚ン等のスチレン系ポリマヌ、ナむロン、ポリ塩
化ビニル、ポリ塩化ビニリデン等、皮々の合成暹
脂フむルム、シヌトが䟋瀺できる。たた、䞊蚘の
フむルム、シヌトは、非発泡、発泡のものであ぀
おもよく、さらには、延䌞されお、熱収瞮性を有
するものが奜たしく、䞊蚘フむルム、シヌトずの
ラミネヌト䜓を延䌞し、熱収瞮性を付䞎したもの
であ぀おもよい。これらフむルム、シヌトずの積
局は、䞊蚘フむルム、シヌトの玠材暹脂ず共抌出
しお熱融着により積局しおもよく、゚チレン−酢
酞ビニル共重合䜓、ポリりレタン等、適宜の接着
剀により積局しおもよい。たた、接着剀ずしお、
前蚘攟射線照射等により架橋する前蚘゚チレン系
ポリマヌや、䞍飜和二重結合を有する暹脂、䟋え
ば、ポリブタゞ゚ン等の他、゚ポキシアクリレヌ
ト、りレタンアクリレヌト、ポリ゚ステルアクリ
レヌトたたはこれらのメタクリレヌト等を甚いる
ず、゚チレン系ポリマヌの架橋ずずもにこれらの
接着剀も架橋させるこずができるので、積局シヌ
トの䞀䜓性が倧きくなる。 Note that the heat-shrinkable polyolefin foam sheet 2 described above may be laminated with other films or sheets. The materials for the films and sheets mentioned above include various synthetic resins such as olefin polymers such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate, styrene polymers such as polystyrene and styrene-butadiene, nylon, polyvinyl chloride, and polyvinylidene chloride. Examples include films and sheets. Further, the above-mentioned film or sheet may be non-foamed or foamed, and it is preferable that the film or sheet has heat-shrinkability after being stretched. It may also be one that has been given contractility. These films and sheets may be laminated by co-extrusion with the resin material of the film or sheet and heat fusion, or by lamination using an appropriate adhesive such as ethylene-vinyl acetate copolymer or polyurethane. good. Also, as an adhesive,
In addition to the above-mentioned ethylene-based polymers that are crosslinked by radiation irradiation, resins having unsaturated double bonds such as polybutadiene, epoxy acrylates, urethane acrylates, polyester acrylates, or their methacrylates can be used to Since these adhesives can also be crosslinked along with crosslinking, the integrity of the laminated sheet is increased.

この考案の被芆成圢容噚は、䞊蚘の熱収瞮性ポ
リオレフむン系発泡シヌトで、成圢容噚を熱
シヌル等により包囲し、100〜250℃皋床の枩床で
熱収瞮させるこずにより埗るこずができる。な
お、䞊蚘熱収瞮性ポリオレフむン系発泡シヌト
は、シヌト状に限らず、熱収瞮により成圢容噚
を容易に密着包装できるように、予め筒状、袋状
に圢成されおいるものが奜たしい。たた、シナリ
ンク包装䜜業を円滑に行なうため、䞊蚘熱収瞮性
ポリオレフむン系発泡シヌトに空気抜き甚の
孔、切り目等を適宜数圢成しおもよい。 The coated molded container of this invention can be obtained by surrounding the molded container 1 with the above-mentioned heat-shrinkable polyolefin foam sheet 2 by heat sealing or the like, and heat-shrinking it at a temperature of about 100 to 250°C. In addition, the heat-shrinkable polyolefin foam sheet 2
Not only in sheet form, but also in molded containers 1 due to heat shrinkage.
Preferably, the material is previously formed into a cylindrical or bag shape so that it can be easily tightly packaged. Further, in order to perform the shrink packaging operation smoothly, an appropriate number of air vent holes, cuts, etc. may be formed in the heat-shrinkable polyolefin foam sheet 2.

䞊蚘被芆成圢容噚を構成する成圢容噚ずしお
は、抌出ブロヌ成圢、射出成圢、シヌトを甚いた
熱成圢等の成圢手段により圢成された有底容噚、
内郚が密閉された密閉空掞䜓容噚、䞀郚に窓、孔
等を有する窓開き空掞䜓容噚、分割された耇数の
成圢品を組合せた空掞䜓容噚等、皮々の成圢容噚
が甚いられる。なお、カヌ゚アコンケヌス等の䞊
蚘窓開き空掞䜓容噚を密着被芆する堎合、䞊蚘窓
郚等に察応する箇所郚分を切陀しおもよい。 The molded container 1 constituting the above-mentioned coated molded container includes a bottomed container formed by a molding method such as extrusion blow molding, injection molding, or thermoforming using a sheet;
Various molded containers are used, such as a closed cavity container whose inside is sealed, a window-opening cavity container partially having a window or a hole, and a hollow container made by combining a plurality of divided molded products. In addition, when closely covering the above-mentioned window-opening hollow body container such as a car air conditioner case, a portion corresponding to the above-mentioned window portion etc. may be cut out.

たた、前蚘熱収瞮性ポリオレフむン系発泡シヌ
トで被芆するこずにより、ポリ゚チレン、ポリ
プロピレン等の耐熱性が十分でない玠材により圢
成された成圢容噚、各皮の゚ンゞニアリングプラ
スチツク等の合成暹脂や、金属等で圢成された凹
凞郚等耇雑な圢状を有する成圢容噚を有効に保護
するこずができる。より具䜓的には、䞊蚘熱収瞮
性ポリオレフむン系発泡シヌトが、倧きな断熱
保枩性、緩衝性、耐熱性、機械的匷床等を有する
ず共に、前蚘の通り熱収瞮応力が倧きく、しかも
柔軟性を有しおいるので、゚アコン機噚のハりゞ
ング、゚アコン郚品ケヌス、飲料甚瓶、陶噚、磁
噚、保枩ボトル、保枩ボツクスや、ステンレス補
の流し台等のシンク、トレむの氎タンク等の成圢
容噚の結露を防止し぀぀確実に保護するこずがで
きる。 In addition, by covering with the heat-shrinkable polyolefin foam sheet 2, molded containers made of materials with insufficient heat resistance such as polyethylene and polypropylene, synthetic resins such as various engineering plastics, metals, etc. Molded containers having complex shapes such as uneven parts can be effectively protected. More specifically, the heat-shrinkable polyolefin foam sheet 2 has high heat-insulating and heat-retaining properties, cushioning properties, heat resistance, mechanical strength, etc., as well as high heat-shrinkage stress and flexibility as described above. This prevents condensation on air conditioner housings, air conditioner parts cases, beverage bottles, ceramics, porcelain, thermal bottles, thermal boxes, sinks such as stainless steel sinks, molded containers such as tray water tanks, etc. can be reliably protected.

考案の効果 以䞊のように、この考案によれば、熱収瞮圓初
の収瞮応力ず熱収瞮埌の収瞮応力ずの割合が、特
定の倀を有する熱収瞮性ポリオレフむン系発泡シ
ヌトを甚いおおり、成圢容噚が耇雑な圢状を有す
るものであ぀おも、シナリンク包装時にトラブル
を起こすこずなく、速くしかも匷く熱収瞮させる
こずができるので、被芆局ず成圢容噚ずの密着性
に優れる。特に、高発泡倍率を有する熱収瞮性ポ
リオレフむン系発泡シヌトずしおも、成圢容噚
が、熱収瞮盎埌においおは緊密にシナリンク包装
されるずずもに、シナリンク包装埌も、匛みが生
じるこずなく密着包装状態が維持される。たた、
発泡シヌトの玠材が、可撓性、柔軟性を有するオ
レフむン系ポリマヌであるので、硬質のポリスチ
レン系発泡シヌトずは異なり、耇雑な構造を有す
る成圢容噚等に察しおも、熱収瞮時の远埓性がよ
く、成圢容噚を容易か぀緊密に被芆でき、簡䟿性
に優れおいる。埓぀お、接着剀を甚いるこずな
く、簡䟿か぀確実に、成圢容噚を密着被芆できる
だけでなく、皮々の圢状を有する成圢容噚に察し
おも容易か぀経枈的に察応できる。しかも、架橋
されお倧きな耐熱性、機械的匷床および断熱保枩
性等を有する前蚘発泡シヌトで成圢容噚が被芆さ
れおいるので、発泡シヌトが倉圢するこずがない
だけでなく、成圢容噚が確実か぀長期に亘り保護
されるずいうこの考案特有の実甚的効果を奏す
る。<Effects of the invention> As described above, according to this invention, a heat-shrinkable polyolefin foam sheet is used in which the ratio of the shrinkage stress at the beginning of heat shrinkage to the shrinkage stress after heat shrinkage has a specific value. Even if the molded container has a complicated shape, it can be quickly and strongly heat-shrinked without causing trouble during shrink packaging, resulting in excellent adhesion between the coating layer and the molded container. In particular, even as a heat-shrinkable polyolefin foam sheet with a high expansion ratio, the molded container can be tightly shrink-wrapped immediately after heat shrinkage, and even after shrink-wrapping, the tightly packed state can be maintained without any loosening. Ru. Also,
The material of the foam sheet is an olefin-based polymer that is flexible and pliable, so unlike rigid polystyrene-based foam sheets, it can easily conform to molded containers with complex structures during heat shrinkage. It is easy to coat molded containers tightly and is easy to use. Therefore, not only can molded containers be tightly coated easily and reliably without using adhesives, but also molded containers having various shapes can be easily and economically applied. Furthermore, since the molded container is covered with the foamed sheet that is cross-linked and has high heat resistance, mechanical strength, heat insulation and heat retention, etc., the foamed sheet not only does not deform, but also ensures that the molded container remains stable for a long time. This invention has the unique practical effect of being protected for a long period of time.

【図面の簡単な説明】[Brief explanation of the drawing]

第図はこの考案の䞀実斜䟋を瀺す断面図、第
図は熱収瞮性ポリオレフむン系発泡シヌトの延
䌞工皋を瀺す抂略図である。   成圢容噚、  熱収瞮性ポリオレフむ
ン系発泡シヌト。 FIG. 1 is a sectional view showing an embodiment of this invention, and FIG. 2 is a schematic view showing the stretching process of a heat-shrinkable polyolefin foam sheet. 1... Molded container, 2... Heat-shrinkable polyolefin foam sheet.

Claims (1)

【実甚新案登録請求の範囲】  成圢容噚が、䞋蚘の性状を有する熱収瞮性ポ
リオレフむン系発泡シヌトの熱収瞮被芆局によ
り被芆されおいるこずを特城ずする被芆成圢容
噚。 発泡倍率10〜80倍、ゲル分率20〜55、 熱収瞮率30〜80および䞋蚘の関係匏〔〕
を充足するもの。 50   〔〕 匏䞭、は熱収瞮性ポリオレフむン系発泡
シヌトを135℃で加熱したずき加熱圓初に珟れ
る最倧収瞮応力cm2を瀺し、は135℃
で加熱したずき加熱開始埌分経過した時点で
の収瞮応力cm2を瀺す  熱収瞮性ポリオレフむン系発泡シヌトが、䞋
蚘の関係匏〔〕を充足するものである䞊蚘実
甚新案登録請求の範囲第項蚘茉の被芆成圢容
噚。 ×発泡倍率4000 ×発泡倍率400   〔〕  熱収瞮性ポリオレフむン系発泡シヌトが、゚
チレン系ポリマヌからなる䞊蚘実甚新案登録請
求の範囲第項蚘茉の被芆成圢容噚。  熱収瞮性ポリオレフむン系発泡シヌトが、電
子線照射により架橋したものである䞊蚘実甚新
案登録請求の範囲第項蚘茉の被芆成圢容噚。  熱収瞮性ポリオレフむン系発泡シヌトが、゚
チレンず架橋性ビニルシランずの共重合䜓を氎
分の存圚䞋で架橋させお埗られたものである䞊
蚘実甚新案登録請求の範囲第項蚘茉の被芆成
圢容噚。  熱収瞮性ポリオレフむン系発泡シヌトが、筒
状たたは袋状に圢成されおいる䞊蚘実甚新案登
録請求の範囲第項蚘茉の被芆成圢容噚。  成圢容噚が、合成暹脂成圢容噚である䞊蚘実
甚新案登録請求の範囲第項蚘茉の被芆成圢容
噚。[Claims for Utility Model Registration] 1. A covered molded container, characterized in that the molded container is covered with a heat-shrinkable coating layer of a heat-shrinkable polyolefin foam sheet having the following properties. Foaming ratio 10 to 80 times, gel fraction 20 to 55%, heat shrinkage rate 30 to 80%, and the following relational expression []
something that satisfies 3<A/B<50...[] (In the formula, A indicates the maximum shrinkage stress (g/cm 2 ) that appears at the beginning of heating when a heat-shrinkable polyolefin foam sheet is heated at 135°C, and B indicates 135 ℃
2 ) The above utility model, in which the heat-shrinkable polyolefin foam sheet satisfies the following relational expression [ ]: A coated molded container according to claim 1. A x Expansion ratio > 4000 B x Expansion ratio > 400 ... [] 3. The covered molded container according to claim 1 of the above utility model registration claim, wherein the heat-shrinkable polyolefin foam sheet is made of an ethylene polymer. 4. The coated molded container according to claim 1, wherein the heat-shrinkable polyolefin foam sheet is crosslinked by electron beam irradiation. 5. The covered molded container according to claim 1, wherein the heat-shrinkable polyolefin foam sheet is obtained by crosslinking a copolymer of ethylene and crosslinkable vinylsilane in the presence of moisture. . 6. The covered molded container according to claim 1, wherein the heat-shrinkable polyolefin foam sheet is formed into a cylindrical or bag shape. 7. The coated molded container according to claim 1, wherein the molded container is a synthetic resin molded container.
JP1986151649U 1986-10-02 1986-10-02 Expired JPH0333464Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986151649U JPH0333464Y2 (en) 1986-10-02 1986-10-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986151649U JPH0333464Y2 (en) 1986-10-02 1986-10-02

Publications (2)

Publication Number Publication Date
JPS6356620U JPS6356620U (en) 1988-04-15
JPH0333464Y2 true JPH0333464Y2 (en) 1991-07-16

Family

ID=31068909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986151649U Expired JPH0333464Y2 (en) 1986-10-02 1986-10-02

Country Status (1)

Country Link
JP (1) JPH0333464Y2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0331554Y2 (en) * 1986-10-02 1991-07-04
JPH0331553Y2 (en) * 1986-10-02 1991-07-04
JPH0761695B2 (en) * 1989-05-11 1995-07-05 䞉井東圧化孊株匏䌚瀟 Heat shrinkable polyolefin composite sheet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6356618B2 (en) * 1985-04-10 1988-11-08 Tanashin Denki Co
JPS6356619B2 (en) * 1980-05-06 1988-11-08 Matsushita Electric Ind Co Ltd

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0331554Y2 (en) * 1986-10-02 1991-07-04
JPH0331553Y2 (en) * 1986-10-02 1991-07-04

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6356619B2 (en) * 1980-05-06 1988-11-08 Matsushita Electric Ind Co Ltd
JPS6356618B2 (en) * 1985-04-10 1988-11-08 Tanashin Denki Co

Also Published As

Publication number Publication date
JPS6356620U (en) 1988-04-15

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