JP2001225430A - Biodegradable plastic product - Google Patents
Biodegradable plastic productInfo
- Publication number
- JP2001225430A JP2001225430A JP2000039353A JP2000039353A JP2001225430A JP 2001225430 A JP2001225430 A JP 2001225430A JP 2000039353 A JP2000039353 A JP 2000039353A JP 2000039353 A JP2000039353 A JP 2000039353A JP 2001225430 A JP2001225430 A JP 2001225430A
- Authority
- JP
- Japan
- Prior art keywords
- plastic product
- inner layer
- biodegradable
- outer layer
- layer
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Packages (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、生分解性プラスチ
ック製品に関し、特に、耐透水性、耐通気性、耐衝撃
性、耐薬品性に優れ、かつ自然環境において生分解され
る生分解性プラスチック製品に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a biodegradable plastic product, and more particularly, to a biodegradable plastic which is excellent in water permeability, air resistance, impact resistance, and chemical resistance and which is biodegradable in a natural environment. About the product.
【０００２】[0002]
【従来の技術】使用済みの汎用樹脂が環境に重大な悪影
響を及ぼすことから、これらの汎用樹脂に代わるものと
して各種の生分解性樹脂製品が提案されている。しか
し、これらの生分解性樹脂は、環境において自然に生分
解されるという性質を有するものの、汎用樹脂と比較し
て耐透水性、耐通気性、耐衝撃性、耐薬品性等に劣るも
のが多く、化粧品、薬品、食品等の液体や粉体の容器と
して使用すると、収容物が空気や水分によって経時変化
したり、容器自体が劣化してしまう等の問題があった。2. Description of the Related Art Since used general-purpose resins have a serious adverse effect on the environment, various biodegradable resin products have been proposed as alternatives to these general-purpose resins. However, although these biodegradable resins have the property of being naturally biodegraded in the environment, they are inferior to general-purpose resins in terms of water permeability, air permeability, impact resistance, chemical resistance, etc. In many cases, when used as a container for liquids or powders such as cosmetics, medicines, foods, etc., there are problems such as that the contents change with time due to air or moisture, and the container itself is deteriorated.
【０００３】[0003]
【発明が解決しようとする課題】従って、本発明の目的
は、耐透水性、耐通気性、耐衝撃性、耐薬品性に優れ、
かつ自然環境において生分解される生分解性プラスチッ
ク製品、特に、化粧品、薬品、又は食品の容器を提供す
ることである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide excellent water resistance, air permeability, impact resistance, and chemical resistance,
Another object of the present invention is to provide a container of a biodegradable plastic product which is biodegradable in a natural environment, in particular, a cosmetic, a medicine, or a food.
【０００４】[0004]
【課題を解決するための手段】本発明は、容器内層をポ
リオレフィン樹脂で成形し、外層を生分解性樹脂で構成
することにより短期間で自然環境において生分解される
プラスチック製品が得られることを見出し本発明を完成
するに至った。本発明は、少なくとも内層と外層を有す
る積層プラスチック製品において、外層の構成成分の50
質量％以上が生分解性樹脂であり、内層がポリオレフィ
ン樹脂であることを特徴とする生分解性プラスチック製
品を提供するものである。内層及び外層の厚みの比は、
好ましくは0.05〜0.15：0.95〜0.85である。本発明のプ
ラスチック製品は、好ましくは、内層と外層の間に中間
層を含んでいる。この場合、内層、中間層及び外層の厚
みの比は、好ましくは0.05〜0.15：0.05〜0.15：0.7〜
0.9である。According to the present invention, a plastic product which can be biodegraded in a natural environment in a short time can be obtained by molding the inner layer of a container with a polyolefin resin and forming the outer layer of a biodegradable resin. The present invention has been completed. The present invention relates to a laminated plastic product having at least an inner layer and an outer layer, wherein 50
An object of the present invention is to provide a biodegradable plastic product characterized in that the mass% or more is a biodegradable resin and the inner layer is a polyolefin resin. The ratio of the thickness of the inner layer and the outer layer is
Preferably it is 0.05-0.15: 0.95-0.85. The plastic article of the present invention preferably includes an intermediate layer between the inner and outer layers. In this case, the thickness ratio of the inner layer, the intermediate layer and the outer layer is preferably 0.05 to 0.15: 0.05 to 0.15: 0.7 to
0.9.
【０００５】[0005]
【発明の実施の形態】本発明は、外層の構成成分の50質
量％以上が生分解性樹脂であることを特徴とする生分解
性プラスチック製品である。本発明において、外層の構
成成分の50質量％以上、好ましくは70質量％以上、さら
に好ましくは90質量％以上、最も好ましくは100質量％
が生分解性樹脂で構成される。本発明に使用される生分
解性樹脂としては、ポリヒドロキシブチレート／バリレ
ート、ポリ−β−ヒドロキシ酪酸、ポリブチレンサクシ
ネート、ポリブチレンサクシネート/アジペート、ポリ
エチレンサクシネート、ポリカプロラクトン、ポリ乳
酸、ポリビニルアルコール、デンプン、変性デンプン、
セルロースアセテート、キトサン/セルロース/デンプン
及びこれらの２種以上の混合物が挙げられる。その具体
的な市販品の例としては、ラクティー（ポリ乳酸：島津
製作所）、ノボン（デンプン（合成）：チッソ）、ビオ
ノーレ（ポリブチレンサクシネート、ポリブチレンサク
シネート/アジペート：昭和高分子）、レイシア（ポリ
乳酸：三井化学）、ラクトロン（カネボウ製）、プラク
セル（ダイセル化学製）等が挙げられる。BEST MODE FOR CARRYING OUT THE INVENTION The present invention is a biodegradable plastic product characterized in that at least 50% by mass of a component of the outer layer is a biodegradable resin. In the present invention, 50% by mass or more of the components of the outer layer, preferably 70% by mass or more, more preferably 90% by mass or more, and most preferably 100% by mass.
Is composed of a biodegradable resin. Examples of the biodegradable resin used in the present invention include polyhydroxybutyrate / valerate, poly-β-hydroxybutyric acid, polybutylene succinate, polybutylene succinate / adipate, polyethylene succinate, polycaprolactone, polylactic acid, and polyvinyl. Alcohol, starch, denatured starch,
Cellulose acetate, chitosan / cellulose / starch and mixtures of two or more thereof. Specific examples of commercially available products include Lacty (polylactic acid: Shimadzu Corporation), Novon (starch (synthetic): Chisso), bionole (polybutylene succinate, polybutylene succinate / adipate: Showa Kogyo), Lacia (Polylactic acid: Mitsui Chemicals), Lactron (manufactured by Kanebo), Plaxel (manufactured by Daicel Chemical) and the like.
【０００６】本発明のプラスチック製品の内層はポリオ
レフィン樹脂で構成することができる。例えば、ポリエ
チレン、ポリプロピレン、ポリエチレン−プロピレン、
ポリ塩化ビニル、ポリスチレン等の熱可塑性樹脂が挙げ
られる。特にポリエチレン、ポリプロピレン、ポリエチ
レン−プロピレンが好ましい。本発明のプラスチック製
品の内層はこれらポリオレフィン樹脂のみで構成されて
いてもよいが、生分解誘導促進剤（例えば、デグラ・ノ
ボン（登録商標）（ノボン・ジャパン販売））を30質量
％以下、好ましくは20質量％以下含有しても良い。[0006] The inner layer of the plastic product of the present invention can be composed of a polyolefin resin. For example, polyethylene, polypropylene, polyethylene-propylene,
Thermoplastic resins such as polyvinyl chloride and polystyrene are exemplified. Particularly, polyethylene, polypropylene and polyethylene-propylene are preferred. The inner layer of the plastic product of the present invention may be composed of only these polyolefin resins. May be contained up to 20% by mass.
【０００７】本発明において、中間層を設ける場合、中
間層は内層と外層の接着剤として作用する。接着剤の例
としては、ＳＦ−７３０（三井化学）や、内層成分樹脂
と外層成分樹脂の混合物（例えば、１：１の混合物）が
挙げられる。In the present invention, when an intermediate layer is provided, the intermediate layer acts as an adhesive between the inner layer and the outer layer. Examples of the adhesive include SF-730 (Mitsui Chemicals) and a mixture (for example, a 1: 1 mixture) of an inner layer component resin and an outer layer component resin.
【０００８】本発明のプラスチック製品の用途として好
ましいものは、化粧品、医薬品、食品等の容器である。[0008] Preferable applications of the plastic product of the present invention are containers for cosmetics, pharmaceuticals, foods and the like.
【０００９】本発明の積層プラスチック製品の厚みは特
に制限はなく、一般的な化粧品、医薬品、食品等の容器
の厚みとほぼ同様である。本発明のプラスチック製品は
通常の成形方法、例えば、中空、ブロー等により成形で
きる。成形温度は通常、１５０〜１８０℃、好ましくは
１６０〜１７０℃程度が適当である。The thickness of the laminated plastic product of the present invention is not particularly limited, and is substantially the same as the thickness of general containers for cosmetics, medicines, foods and the like. The plastic product of the present invention can be molded by a usual molding method, for example, hollow, blow or the like. The molding temperature is usually 150 to 180 ° C, preferably about 160 to 170 ° C.
【００１０】[0010]
【実施例１】外層樹脂としてラクティー（ポリ乳酸：島
津製作所）を、内層樹脂として高密度ポリエチレンを、
中間層としてＳＦ−７３０（三井化学）を使用し、有限
会社鈴木鉄工製、多層中空成形機（ＴＢ−ＳＷ−７Ｐ）
を用いて、１６０℃の成形温度で成形し、外層の厚み８
００μm、中間層の厚み１００μm、内層の厚み１００μ
m、寸法（直径５８．５mm、高さ１３７mm、厚み１００
０μｍ）の化粧品の容器を作成した。この容器は、天然
に放置しておくと、外層が１年半で崩壊した。Example 1 Lacty (polylactic acid: Shimadzu Corporation) as the outer layer resin, high density polyethylene as the inner layer resin,
Using SF-730 (Mitsui Chemicals) as the intermediate layer, Suzuki Iron Works Co., Ltd., multilayer blow molding machine (TB-SW-7P)
At a molding temperature of 160 ° C. and a thickness of the outer layer of 8
00 μm, middle layer thickness 100 μm, inner layer thickness 100 μm
m, dimensions (diameter 58.5mm, height 137mm, thickness 100
(0 μm). The outer layer of this container collapsed in a year and a half when left to stand naturally.
【００１１】[0011]
【実施例２】外層樹脂としてラクティー（ポリ乳酸：島
津製作所）を、内層樹脂として高密度ポリエチレンにデ
グラ・ノボン（登録商標）（ノボン・ジャパン販売）を
20質量％含有させたもの、中間層としてＳＦ−７３０
（三井化学）を使用し、有限会社鈴木鉄工製、多層中空
成形機（ＴＢ−ＳＷ−７Ｐ）を用いて、１６０℃の成形
温度で成形し、外層の厚み８００μm、中間層の厚み１
００μm、内層の厚み１００μm、寸法（直径５８．５m
m、高さ１３７mm、厚み１０００μｍ）の化粧品の容器
を作成した。Example 2 Lacty (polylactic acid: Shimadzu Corporation) was used as the outer layer resin, and Degra Nobon (registered trademark) (sold by Nobon Japan) was used as the inner layer resin for high-density polyethylene.
20% by mass, SF-730 as an intermediate layer
(Mitsui Chemicals), using a multi-layer hollow molding machine (TB-SW-7P) manufactured by Suzuki Iron Works Co., Ltd. at a molding temperature of 160 ° C., the thickness of the outer layer is 800 μm, and the thickness of the intermediate layer is 1
00 μm, inner layer thickness 100 μm, dimensions (diameter 58.5 m
m, height 137 mm, thickness 1000 μm).
【実施例３】実施例１において、中間層として、外層樹
脂と内層樹脂の１：１混合物を使用した他は全く同様に
して化粧品の容器を作成した。Example 3 A cosmetic container was prepared in exactly the same manner as in Example 1, except that a 1: 1 mixture of the outer layer resin and the inner layer resin was used as the intermediate layer.
【００１２】[0012]
【発明の効果】本発明の容器は、内層にポリオレフィン
樹脂を使用しているため、耐透水性、耐通気性、耐衝撃
性、耐薬品性に優れており、また外層に生分解性樹脂を
使用しているため、自然環境において短時間で容易に生
分解される。従って本発明の生分解性プラスチック製品
は、化粧品、薬品、又は食品の容器等として好適であ
る。The container of the present invention has excellent water permeability, air resistance, impact resistance and chemical resistance since the inner layer is made of a polyolefin resin, and a biodegradable resin is used for the outer layer. Because it is used, it is easily biodegraded in a short time in a natural environment. Therefore, the biodegradable plastic product of the present invention is suitable as a container for cosmetics, medicine, food, and the like.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3E067 AB01 AB81 AB96 BB14A BB15A BB16A BB25A CA04 CA10 CA16 CA23 3E086 AA21 AD03 AD04 BA04 BA15 BB71 BB74 BB90 CA01 CA28 CA35 4F100 AJ07A AK03B AK04B AK05 AK07B AK41A AK46A AK64B AK69A AK80A AL05A AR00C BA03 BA07 BA10A CA30B CA30H DA01 EH20 GB16 JC00 JC00A ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E067 AB01 AB81 AB96 BB14A BB15A BB16A BB25A CA04 CA10 CA16 CA23 3E086 AA21 AD03 AD04 BA04 BA15 BB71 BB74 BB90 CA01 CA28 CA35 4F100 AJ07A AK03B AK04BAKA AK05AAKA AK05AAKA AK05A BA07 BA10A CA30B CA30H DA01 EH20 GB16 JC00 JC00A
Claims (8)
スチック製品において、外層の構成成分の50質量％以上
が生分解性樹脂であり、内層がポリオレフィン樹脂であ
ることを特徴とする生分解性プラスチック製品。1. A laminated plastic product having at least an inner layer and an outer layer, wherein at least 50% by mass of the constituent components of the outer layer is a biodegradable resin, and the inner layer is a polyolefin resin.
95〜0.85である請求項１記載の生分解性プラスチック製
品。2. The thickness ratio of the inner layer and the outer layer is 0.05 to 0.15: 0.
The biodegradable plastic product according to claim 1, which has a ratio of 95 to 0.85.
記載の生分解性プラスチック製品。3. The method according to claim 1, further comprising an intermediate layer between the inner layer and the outer layer.
A biodegradable plastic product as described.
0.15：0.05〜0.15：0.7〜0.9である請求項３記載の生分
解性プラスチック製品。4. The thickness ratio of the inner layer, the intermediate layer and the outer layer is 0.05 to
The biodegradable plastic product according to claim 3, wherein the ratio is 0.15: 0.05 to 0.15: 0.7 to 0.9.
ート／バリレート、ポリ−β−ヒドロキシ酪酸、ポリブ
チレンサクシネート、ポリブチレンサクシネート/アジ
ペート、ポリエチレンサクシネート、ポリカプロラクト
ン、ポリ乳酸、ポリビニルアルコール、デンプン、変性
デンプン、キトサン/セルロース/デンプン及びこれらの
2種以上の混合物からなる群から選ばれる請求項１〜４
のいずれか１項記載の生分解性プラスチック製品。5. The biodegradable resin is polyhydroxybutyrate / valerate, poly-β-hydroxybutyric acid, polybutylene succinate, polybutylene succinate / adipate, polyethylene succinate, polycaprolactone, polylactic acid, polyvinyl alcohol, Starch, modified starch, chitosan / cellulose / starch and their
5. A composition selected from the group consisting of two or more mixtures.
The biodegradable plastic product according to any one of the above.
を含有する請求項１〜５のいずれか１項記載の生分解性
プラスチック製品。6. The biodegradable plastic product according to claim 1, wherein the inner layer contains 30% by mass or less of a biodegradation induction accelerator.
リプロピレン又はポリエチレン−プロピレンである請求
項１〜６のいずれか１項記載の生分解性プラスチック製
品。7. The biodegradable plastic product according to claim 1, wherein the polyolefin is polyethylene or polypropylene or polyethylene-propylene.
請求項１〜７のいずれか１項記載の製品。8. A container for cosmetics, medicine, or food,
A product according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000039353A JP2001225430A (en) | 2000-02-17 | 2000-02-17 | Biodegradable plastic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000039353A JP2001225430A (en) | 2000-02-17 | 2000-02-17 | Biodegradable plastic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001225430A true JP2001225430A (en) | 2001-08-21 |
Family
ID=18562928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000039353A Pending JP2001225430A (en) | 2000-02-17 | 2000-02-17 | Biodegradable plastic product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001225430A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005162235A (en) * | 2003-12-01 | 2005-06-23 | Toray Ind Inc | Container containing polylactic acid resin, and method for manufacturing the same |
| JP2008080546A (en) * | 2006-09-26 | 2008-04-10 | Dainippon Printing Co Ltd | Double container |
| EP2042301A1 (en) * | 2006-07-19 | 2009-04-01 | Mitsubishi Plastics, Inc. | Laminated sheet material |
| WO2009113515A1 (en) * | 2008-03-10 | 2009-09-17 | 株式会社平和化学工業所 | Molded body of laminated plastic derived from biomass, and manufacturing method therefor |
| CN102407644A (en) * | 2011-07-22 | 2012-04-11 | 蚌埠蓝天塑料包装有限公司 | Biodegradable multilayer composite polyethylene film and preparation method thereof |
| CN105415825A (en) * | 2009-03-12 | 2016-03-23 | 东丽株式会社 | Polylactic Acid-Based Multilayer Sheet |
-
2000
- 2000-02-17 JP JP2000039353A patent/JP2001225430A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005162235A (en) * | 2003-12-01 | 2005-06-23 | Toray Ind Inc | Container containing polylactic acid resin, and method for manufacturing the same |
| EP2042301A1 (en) * | 2006-07-19 | 2009-04-01 | Mitsubishi Plastics, Inc. | Laminated sheet material |
| EP2042301A4 (en) * | 2006-07-19 | 2012-03-07 | Mitsubishi Plastics Inc | Laminated sheet material |
| JP2008080546A (en) * | 2006-09-26 | 2008-04-10 | Dainippon Printing Co Ltd | Double container |
| WO2009113515A1 (en) * | 2008-03-10 | 2009-09-17 | 株式会社平和化学工業所 | Molded body of laminated plastic derived from biomass, and manufacturing method therefor |
| JP2009214405A (en) * | 2008-03-10 | 2009-09-24 | Heiwa Kagaku Kogyosho:Kk | Biomass-derived laminated plastic molding and its manufacturing method |
| CN102026806A (en) * | 2008-03-10 | 2011-04-20 | 株式会社平和化学工业所 | Molded body of laminated plastic derived from biomass, and manufacturing method therefor |
| KR101239506B1 (en) | 2008-03-10 | 2013-03-05 | 가부시끼가이샤 헤이와 가가꾸 고교쇼 | Molded body of laminated plastic derived from biomass, and manufacturing method therefor |
| CN105415825A (en) * | 2009-03-12 | 2016-03-23 | 东丽株式会社 | Polylactic Acid-Based Multilayer Sheet |
| CN102407644A (en) * | 2011-07-22 | 2012-04-11 | 蚌埠蓝天塑料包装有限公司 | Biodegradable multilayer composite polyethylene film and preparation method thereof |
| CN102407644B (en) * | 2011-07-22 | 2013-09-11 | 蚌埠蓝天塑料包装有限公司 | Biodegradable multilayer composite polyethylene film and preparation method thereof |
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