JPH0331695Y2 - - Google Patents
Info
- Publication number
- JPH0331695Y2 JPH0331695Y2 JP2453190U JP2453190U JPH0331695Y2 JP H0331695 Y2 JPH0331695 Y2 JP H0331695Y2 JP 2453190 U JP2453190 U JP 2453190U JP 2453190 U JP2453190 U JP 2453190U JP H0331695 Y2 JPH0331695 Y2 JP H0331695Y2
- Authority
- JP
- Japan
- Prior art keywords
- container
- methylstyrene
- poly
- laminated
- oil
- 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
Links
- 229920000098 polyolefin Polymers 0.000 claims description 28
- 229920000314 poly p-methyl styrene Polymers 0.000 claims description 21
- 239000006260 foam Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 20
- 239000003921 oil Substances 0.000 description 17
- 235000019198 oils Nutrition 0.000 description 17
- 235000013305 food Nutrition 0.000 description 8
- 229920005992 thermoplastic resin Polymers 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 3
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 229920006327 polystyrene foam Polymers 0.000 description 2
- JZHGRUMIRATHIU-UHFFFAOYSA-N 1-ethenyl-3-methylbenzene Chemical compound CC1=CC=CC(C=C)=C1 JZHGRUMIRATHIU-UHFFFAOYSA-N 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000011243 crosslinked material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920005676 ethylene-propylene block copolymer Polymers 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 235000021485 packed food Nutrition 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
Description
〔産業上の利用分野〕
本考案は耐熱、耐油性容器に関する。
〔従来の技術〕
近年、食品やその他種々の製品の包装用容器と
して合成樹脂発泡シートや発泡シートに樹脂フイ
ルムを積層したシートを成形して得られる発泡体
容器が広く用いられている。
従来この種容器としては、ポリスチレン発泡
シートに耐衝撃性ポリスチレンフイルムを積層し
たシートを成形したもの、スチレン−無水マレ
イン酸共重合体樹脂発泡体シートに同様の樹脂よ
りなるフイルムを積層したシートを成形したも
の、ポリスチレン発泡シートにオレフイン系樹
脂発泡シートを成形したもの、オレフイン系樹
脂発泡シートを成形したもの等が用いられてい
る。また本出願人はこの種容器の成形用積層シー
トとしてポリ−ｐ−メチルスチレン発泡シートに
スチレン系樹脂フイルムを積層したシートを先に
出願している（実願昭59−66985号実開昭60−
178123号参照）。
〔考案が解決しようとする課題〕
しかしながら従来のの容器は耐熱、耐油性に
劣り、の容器は耐熱性は有するが耐油性に劣る
とともに樹脂価格が高いという問題があり、の
容器は耐油性は有するが耐熱性に乏しく、の容
器は柔らかく容器としての保形成に劣るという欠
点があつた。またポリ−ｐ−メチルスチレン発泡
シートにスチレン系樹脂フイルムを積層したシー
トを成形した容器も耐熱性は優れているものの耐
油性が必ずしも充分とは言い難かつた。
このため従来の発泡容器は食品容器として用い
た場合、耐熱性に劣る容器は加熱される食品を包
装した場合や、包装された食品を容器ごと電子レ
ンジ等で加熱した場合に容器が変形するという不
具合があり、また耐油性に劣るものは容器が油に
よつて侵され易く油性食品の包装用として問題が
あり、油性食品を容器ごと加熱した場合等に特に
油によつて容器が侵され易く、容器が変形したり
り穴があいたりする等の不具合があつた。
本考案は上記の点に鑑みなされたもので、耐熱
性、耐油性ともに優れた容器を安価に提供するこ
とを目的とする。
〔課題を解決するための手段〕
本考案の耐熱、耐油性容器はポリ−ｐ−メチル
スチレンを基材樹脂とする発泡体よりなる容器本
体と、ポリオレフイインとスチレンの混合物又は
ポリオレフインとポリ−ｐ−メチルスチレンの混
合物からなる接着剤を介して少なくとも内容物と
接する側の面に位置せしめられて容器本体に積層
された無架橋ポリオレフインフイルム層とからな
る構成を有するものである。
以下、本考案を実施例に対応する第１図〜第３
図に基き説明する。
第１図、第２図は本考案容器１の一実施態様を
示し、該容器１はポリ−ｐ−メチルスチレンを基
材樹脂とする発泡体よりなる容器本体２と、ポリ
オレフイインとスチレンの混合物又はポリオレフ
インとポリ−ｐ−メチルスチレンの混合物からな
る接着剤４を介して内容物と接する側の面に位置
せしめられて容器本体２に積層された無架橋ポリ
オレフインフイルム層３とから構成される。
上記容器本体２は、密度0.03〜0.5ｇ／cm3、肉
厚１〜５mmが好ましく、また基材樹脂として用い
るポリ−ｐ−メチルスチレンはメルトフローレイ
ト（MFR）が0.1〜20ｇ／10分のものが好まし
い。容器本体２を構成する発泡体におけるポリ−
ｐ−メチルスチレンは未架橋であつても優れた耐
熱性を有するが、ポリ−ｐ−メチルスチレンが架
橋せしめられていることによつて耐熱性がさらに
向上される。ポリ−ｐ−メチルスチレンは電子線
照射によつて容易に架橋することができる。
尚、本考案においては、本考案の所期の目的を
妨げない範囲において容器本体２の基材樹脂であ
るポリ−ｐ−メチルスチレンに他の樹脂、例えば
ポリスチレン、スチレン−無水マレイン酸共重合
体、スチレン−アクリル酸系共重合体等を混合し
てもよい。また、本考案でいうポリ−ｐ−メチル
スチレンは、100％ｐ−メチルスチレンのホモポ
リマーである必要はなく、少割合のｍ−メチルス
チレンを含んだものであつてもよい。
本発明において上記容器本体２に特定の接着剤
４を介して内容物と接する側の面に位置せしめら
れて積層される無架橋ポリオレフインフイルム層
３の材質としては、高密度ポリエチレン、低密度
ポリエチレン、直鎖低密度ポリエチレン、ポリプ
ロピレン、ポリブテン、エチレンとプロピレンの
ランダム又はブロツク共重合体、上記ポリオレフ
インを主成分として他の単量体と共重合体した共
重合体が挙げられ、ポリプロピレンは耐熱性に優
れる点から特に好ましい。
無架橋ポリオレフインフイルム層３の厚さは10
〜100μmが好ましい。
接着剤４としてはポリオレフインとスチレンの
混合物、ポリオレフインとポリ−ｐ−メチルスチ
レンの混合物が用いられ、これらの接着剤を用い
ることによりポリ−ｐ−メチルスチレンと熱融着
では積層が困難な無架橋ポリオレフインフイルム
層３が、加熱によつてもポリ−ｐ−メチルスチレ
ンの容器本体２と剥離が生じることなく、確実に
容器本体２に積層される。
接着剤４は厚み10〜50μm程度となるように形
成することが好ましい。
容器１は、無架橋ポリオレフイン層３が内容物
と接する側の面のみに積層されている場合に限ら
ず、第３図に示すように容器１の外側表面に熱可
塑性樹脂層５が積層されていてもよく、熱可塑性
樹脂層５の材質としては耐衝撃性ポリスチレン、
耐衝撃ポリ−ｐ−メチルスチレン等の熱可塑性樹
脂フイルムが挙げられ、この場合容器１の強度を
さらに向上することができる。
また容器１の外側表面に積層する熱可塑性樹脂
層５は、内容物と接する側に積層されている無架
橋ポリオレフインフイルム層３のフイルムと同じ
材質でもよく、この場合は特に図示しないが前記
と同様の接着剤を介して積層することができる。
外側表面側に積層する熱可塑性樹脂層５は耐衝
撃性ポリスチレン、耐衝撃ポリ−ｐ−メチルスチ
レンが好ましい。
本考案容器１はポリ−ｐ−メチルスチレンを基
材樹脂とする発泡シートに無架橋ポリオレフイン
フイルムを前記接着層を介して積層したシート
を、無架橋ポリオレフインフイルムが内容物と接
する側の面に位置するように成形することにより
得られる。
本考案容器１は食品包装容器のみに限らず機械
部品の包装容器としても最適である。
〔実施例〕
以下に実施例、比較例を挙げて本考案を更に詳
細に説明する。
実施例 １〜２
第１表に示す樹脂100重量部に対し気泡調整剤
としてクエン酸と炭酸水素ナトリウムの等モル混
合物0.2重量部及び発泡剤として同表にしめす量
のブタンを添加して押出機内で加圧下に溶融混練
した後押出発泡せしめて第１表に示す密度の厚さ
約２mmの発泡シートを得た。
ついでこの発泡シートに厚さ40μmの無架橋ポ
リプロピレンフイルム層又は無架橋ポリオレフイ
ンフイルム層架橋エチレン−プロピレンランダム
共重合体フイルム層を第１表に示す樹脂からなる
接着剤を介して、接着剤層が25μmになるように
積層した。
次に得られた積層シートを無架橋ポリオレフイ
ンフイルム層が内面側となるように成形して、第
２図に示す形状の容器を得た。これらの容器の諸
物性を測定した結果を第１表に示す。
比較例 １〜３
第１表に示す樹脂に発泡剤としてブタンを同表
に示す量用い、その他の条件は実施例と同様にし
て押出し発泡シートを得た。次いでこの発泡シー
トの片面に第１表に示す樹脂を基材とする厚さ
40μmの合成樹脂フイルムを同表に示す方法によ
り積層して得た積層シートを合成樹脂フイルムが
内容物と接する側となるように成形して実施例と
同様の形状の容器を得た。これらの容器の諸物性
を測定した結果を第１表にあわせて示す。
尚、第１表の耐熱性は容器を電子レンジにて10
分間加熱保持した時、
容器に変形なし……○
容器が著しく変形する……×
として判定した。耐油性は容器の表面積100cm2当
たりにオリーブ油を例２ml塗布し電子レンジにて
３分間加熱保持した時、
容器が全く油に侵されない……○
容器が著しく油に侵される……×
として判定した。
[Industrial Application Field] The present invention relates to a heat-resistant and oil-resistant container. [Prior Art] In recent years, foam containers obtained by molding synthetic resin foam sheets or sheets in which a resin film is laminated on a foam sheet have been widely used as packaging containers for foods and various other products. Conventionally, this type of container has been molded from a polystyrene foam sheet laminated with an impact-resistant polystyrene film, or a styrene-maleic anhydride copolymer resin foam sheet laminated with a film made of the same resin. A foamed polystyrene sheet molded with an olefin resin foam sheet, a foamed olefin resin sheet molded into a polystyrene foam sheet, and the like are used. Additionally, the present applicant has previously filed an application for a sheet in which a styrene resin film is laminated on a poly-p-methylstyrene foam sheet as a laminated sheet for molding containers of this type (Utility Application No. 59-66985, Utility Model Application No. 60-60). −
(See No. 178123). [Problems that the invention aims to solve] However, conventional containers have poor heat resistance and oil resistance; However, it had the disadvantage that it had poor heat resistance, and the container was soft and had poor retention as a container. Furthermore, although containers made of sheets made of poly-p-methylstyrene foam sheets laminated with styrene resin films have excellent heat resistance, their oil resistance is not necessarily sufficient. For this reason, when conventional foam containers are used as food containers, containers with poor heat resistance may deform when wrapping food that will be heated or when heating the packaged food in a microwave oven, etc. If there are defects or poor oil resistance, the container is easily eroded by oil, which is a problem when used for packaging oil-based foods, and the container is particularly susceptible to attack by oil when the container is heated together with oil-based foods. There were problems such as the container becoming deformed or having holes. The present invention was devised in view of the above points, and an object of the present invention is to provide a container with excellent heat resistance and oil resistance at a low cost. [Means for Solving the Problems] The heat-resistant and oil-resistant container of the present invention has a container body made of a foam whose base resin is poly-p-methylstyrene, and a mixture of polyolefin and styrene or polyolefin and poly- It has a structure consisting of a non-crosslinked polyolefin film layer laminated on the container body, which is positioned at least on the side that contacts the contents via an adhesive made of a mixture of p-methylstyrene. Hereinafter, the present invention will be described in Figures 1 to 3 corresponding to examples.
This will be explained based on the diagram. 1 and 2 show an embodiment of the container 1 of the present invention, which includes a container body 2 made of a foam whose base resin is poly-p-methylstyrene, and a container body 2 made of a foam made of polyolefin and styrene. A non-crosslinked polyolefin film layer 3 is laminated on the container body 2 and is positioned on the side that contacts the contents via an adhesive 4 made of a mixture or a mixture of polyolefin and poly-p-methylstyrene. . The container body 2 preferably has a density of 0.03 to 0.5 g/cm 3 and a wall thickness of 1 to 5 mm, and the poly-p-methylstyrene used as the base resin has a melt flow rate (MFR) of 0.1 to 20 g/10 min. Preferably. Polymer in the foam constituting the container body 2
Although p-methylstyrene has excellent heat resistance even when uncrosslinked, the heat resistance is further improved by crosslinking poly-p-methylstyrene. Poly-p-methylstyrene can be easily crosslinked by electron beam irradiation. In addition, in the present invention, other resins, such as polystyrene, styrene-maleic anhydride copolymer, etc. , a styrene-acrylic acid copolymer, etc. may be mixed. Furthermore, the poly-p-methylstyrene referred to in the present invention does not need to be a homopolymer of 100% p-methylstyrene, and may contain a small proportion of m-methylstyrene. In the present invention, the material of the non-crosslinked polyolefin film layer 3 that is placed and laminated on the side of the container body 2 that contacts the contents via a specific adhesive 4 includes high-density polyethylene, low-density polyethylene, Examples include linear low-density polyethylene, polypropylene, polybutene, random or block copolymers of ethylene and propylene, and copolymers made of the above polyolefin as a main component copolymerized with other monomers. Polypropylene has excellent heat resistance. Particularly preferred from this point of view. The thickness of the non-crosslinked polyolefin film layer 3 is 10
~100 μm is preferred. As the adhesive 4, a mixture of polyolefin and styrene, or a mixture of polyolefin and poly-p-methylstyrene is used, and by using these adhesives, it is possible to form a non-crosslinked material that is difficult to laminate with poly-p-methylstyrene by heat fusion. The polyolefin film layer 3 is reliably laminated on the container body 2 without peeling from the poly-p-methylstyrene container body 2 even when heated. The adhesive 4 is preferably formed to have a thickness of approximately 10 to 50 μm. The container 1 is not limited to the case where the non-crosslinked polyolefin layer 3 is laminated only on the side that contacts the contents, but also the case where the thermoplastic resin layer 5 is laminated on the outer surface of the container 1 as shown in FIG. The material of the thermoplastic resin layer 5 may be impact-resistant polystyrene,
A thermoplastic resin film such as impact-resistant poly-p-methylstyrene may be used, and in this case, the strength of the container 1 can be further improved. Further, the thermoplastic resin layer 5 laminated on the outer surface of the container 1 may be made of the same material as the non-crosslinked polyolefin film layer 3 laminated on the side in contact with the contents. Can be laminated via adhesive. The thermoplastic resin layer 5 laminated on the outer surface side is preferably made of impact-resistant polystyrene or impact-resistant poly-p-methylstyrene. In the container 1 of the present invention, a sheet made by laminating a non-crosslinked polyolefin film on a foamed sheet whose base resin is poly-p-methylstyrene via the adhesive layer is placed on the side where the non-crosslinked polyolefin film is in contact with the contents. It can be obtained by molding it in such a way. The container 1 of the present invention is suitable not only as a food packaging container but also as a packaging container for mechanical parts. [Example] The present invention will be explained in more detail below by giving examples and comparative examples. Examples 1 to 2 To 100 parts by weight of the resin shown in Table 1, 0.2 parts by weight of an equimolar mixture of citric acid and sodium hydrogen carbonate as a foam regulator and the amount of butane shown in the table as a blowing agent were added and the mixture was heated in an extruder. The mixture was melt-kneaded under pressure and then extruded and foamed to obtain a foamed sheet having a density shown in Table 1 and a thickness of about 2 mm. Next, a 40 μm thick non-crosslinked polypropylene film layer or a non-crosslinked polyolefin film layer or a crosslinked ethylene-propylene random copolymer film layer was applied to this foamed sheet via an adhesive made of the resin shown in Table 1, so that the adhesive layer was 25 μm thick. Laminated so that Next, the obtained laminated sheet was molded so that the non-crosslinked polyolefin film layer was on the inner surface side to obtain a container having the shape shown in FIG. 2. Table 1 shows the results of measuring various physical properties of these containers. Comparative Examples 1 to 3 Extruded foamed sheets were obtained using the resin shown in Table 1 and butane as a blowing agent in the amount shown in the table, but under the same conditions as in the examples. Next, one side of this foam sheet is coated with a resin of the thickness shown in Table 1 as a base material.
A laminated sheet obtained by laminating 40 μm synthetic resin films by the method shown in the same table was molded so that the synthetic resin film came into contact with the contents to obtain a container having the same shape as in the example. The results of measuring various physical properties of these containers are also shown in Table 1. In addition, the heat resistance in Table 1 is 10% when the container is placed in a microwave oven.
When heated and held for a minute, the container was judged as not deformed...○ The container was significantly deformed...×. Oil resistance was determined by applying 2ml of olive oil per 100cm2 of surface area of the container and heating it in a microwave for 3 minutes.The container was not affected by oil at all...○ The container was markedly affected by oil...× .
以上説明したように、本考案容器は容器本体を
構成する発泡体の基材樹脂としてポリ−ｐ−メチ
ルスチレンを用いたことにより耐熱性に優れ、更
に内容物と接する側の面には無架橋ポリオレフイ
ンフイルム層が特定の接着剤を介して積層されて
いるため油性の製品を収納した場合でも油によつ
て容器が侵される虞れがなく、食品容器として用
いた場合、容器ごと電子レンジで加熱したり、油
性食品を収納したまま加熱したりすることが可能
である。
しかも本考案容器は無架橋ポリオレフインフイ
ルム層によつて容器が補強されるとともに、容器
本体を構成するポリ−ｐ−メチルスチレンは電子
線によつて架橋が容易であり、架橋によつて容器
の耐熱性をより向上せしめることができる。
また本考案は、容器本体と無架橋ポリオレフイ
ンフイルム層の接着剤にポリオレフインとスチレ
ンの混合物又は、ポリオレフインとポリ−ｐ−メ
チルスチレンの混合物からなるものを用いている
ために、熱融着性のないポリプロピレンのような
無架橋ポリオレフインフイルム層とポリ−ｐ−メ
チルスチレンの容器本体とを良好に接着すること
ができ、加熱による剥離がない等耐熱性も良好で
ある。
更に本考案において用いられるポリ−ｐ−メチ
ルスチレンはスチレン−無水マレイン酸共重合体
に比較して安価に提供されるため、優れた耐熱、
耐油性容器を安価に提供できる等種々の効果を有
する。
As explained above, the container of the present invention has excellent heat resistance due to the use of poly-p-methylstyrene as the base resin of the foam that constitutes the container body, and the surface in contact with the contents is non-crosslinked. Since the polyolefin film layers are laminated with a specific adhesive, there is no risk of the container being attacked by oil even when storing oil-based products, and when used as a food container, the entire container can be heated in a microwave oven. It is also possible to heat oil-based foods while they are stored. In addition, the container of the present invention is reinforced by the non-crosslinked polyolefin film layer, and the poly-p-methylstyrene that makes up the container body can be easily crosslinked by electron beams, making the container heat resistant. You can further improve your sexuality. Furthermore, since the present invention uses a mixture of polyolefin and styrene or a mixture of polyolefin and poly-p-methylstyrene as the adhesive between the container body and the non-crosslinked polyolefin film layer, it has no heat-fusibility. A non-crosslinked polyolefin film layer such as polypropylene and a container body made of poly-p-methylstyrene can be bonded well, and the heat resistance is also good, such as no peeling due to heating. Furthermore, since the poly-p-methylstyrene used in the present invention is available at a lower cost than the styrene-maleic anhydride copolymer, it has excellent heat resistance,
It has various effects such as being able to provide an oil-resistant container at a low cost.
図面は本考案の一実施例を示し、第１図は本考
案容器の一部切欠斜視図、第２図は第１図の−
線縦断面図、第３図は本考案容器の異なる実施
例を示す縦断面図である。
１……容器、２……容器本体、３……無架橋ポ
リオレフインフイルム層、４……接着剤。
The drawings show one embodiment of the present invention; FIG. 1 is a partially cutaway perspective view of the container of the present invention, and FIG.
FIG. 3 is a longitudinal sectional view showing different embodiments of the container of the present invention. DESCRIPTION OF SYMBOLS 1... Container, 2... Container body, 3... Non-crosslinked polyolefin film layer, 4... Adhesive.
Claims (1)
泡体よりなる容器本体と、ポリオレフイインとス
チレンの混合物又はポリオレフインとポリ−ｐ−
メチルスチレンの混合物からなる接着剤を介して
少なくとも内容物と接する側の面に位置せしめら
れて容器本体に積層された無架橋ポリオレフイン
フイルム層とからなることを特徴とする耐熱耐油
性容器。 A container body made of a foam made of poly-p-methylstyrene as a base resin, and a mixture of polyolefin and styrene or polyolefin and poly-p-
1. A heat-resistant and oil-resistant container comprising a non-crosslinked polyolefin film layer laminated on a container body and positioned at least on the side that contacts the contents via an adhesive made of a mixture of methylstyrene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2453190U JPH0331695Y2 (en) | 1990-03-12 | 1990-03-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2453190U JPH0331695Y2 (en) | 1990-03-12 | 1990-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02148913U JPH02148913U (en) | 1990-12-18 |
| JPH0331695Y2 true JPH0331695Y2 (en) | 1991-07-05 |
Family
ID=31527493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2453190U Expired JPH0331695Y2 (en) | 1990-03-12 | 1990-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0331695Y2 (en) |
-
1990
- 1990-03-12 JP JP2453190U patent/JPH0331695Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02148913U (en) | 1990-12-18 |
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