JP2001026667A - Biodegradable resin composition and its production - Google Patents
Biodegradable resin composition and its productionInfo
- Publication number
- JP2001026667A JP2001026667A JP11200342A JP20034299A JP2001026667A JP 2001026667 A JP2001026667 A JP 2001026667A JP 11200342 A JP11200342 A JP 11200342A JP 20034299 A JP20034299 A JP 20034299A JP 2001026667 A JP2001026667 A JP 2001026667A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- starch
- biodegradable resin
- polyethylene
- twin
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本願発明は、自然界に存在す
る微生物によって短期間に分解又は崩壊しうる生物崩壊
性樹脂組成物とその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a biodegradable resin composition which can be decomposed or decomposed in a short time by microorganisms existing in nature and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、フィルム、シート、トレイ、ボト
ル等の包装材料等として合成樹脂（プラスチック）製の
ものが多く使用されて来た。しかし、プラスチック製の
大部分は、自然環境の中で微生物により分解又は崩壊さ
れないために、廃棄されたプラスチック製品の処分が大
きな社会問題となっている。そこで、生物分解性又は生
物崩壊性樹脂組成物が種々提案されているのが現状であ
る。これらの生物崩壊性樹脂組成物の例としては、基本
的には天然高分子物質である澱粉とプラスチックを混合
したいわゆる澱粉樹脂といわれるものが各種提案されて
いる。2. Description of the Related Art Conventionally, synthetic resin (plastic) materials have been widely used as packaging materials for films, sheets, trays, bottles and the like. However, disposal of discarded plastic products has become a major social problem because most plastics are not decomposed or destroyed by microorganisms in the natural environment. Therefore, at present, various biodegradable or biodegradable resin compositions have been proposed. As examples of these biodegradable resin compositions, there have been proposed various types of so-called starch resins in which starch, which is basically a natural polymer, is mixed with plastic.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、これら
の澱粉樹脂からなる生物崩壊性樹脂材料又は原料におい
ては、その製造において、押出機等に送り込まれる前段
階或いは前処理段階において、加熱処理又は加圧処理等
を必要とし、或いはその工程が複雑であったり等種々の
課題が残されていた。本願発明においては、従来のプラ
スチックの持っている耐水性を保持しつつ、なおかつ自
然界に存在する微生物によってより短期間に分解又は崩
壊することができる組成物であって、その構成要素もよ
り簡易なものとして、かかる組成物を提供し、その製造
方法においてもより簡単に製造することができ、更に
は、この組成物を使用して各種の製品に成形するに際し
ても、従来のプラスチック成形加工機によってそのまま
使用可能な生物崩壊性樹脂組成物を提供すること、また
その製造方法を提供することをその課題としている。However, in the biodegradable resin material or raw material comprising such a starch resin, a heat treatment or a pressurization is carried out in a pre-stage or a pre-treatment stage before being fed into an extruder or the like. Various problems have been left, such as the necessity of processing and the like and the complicated process. In the present invention, while maintaining the water resistance of conventional plastics, and is a composition that can be decomposed or disintegrated in a shorter time by microorganisms present in nature, its components are also simpler As a matter of fact, such a composition is provided and can be produced more easily in the production method.Furthermore, when molding into various products using this composition, a conventional plastic molding machine can be used. It is an object of the present invention to provide a biodegradable resin composition that can be used as it is, and to provide a method for producing the same.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
に、本願発明の第１のものは、コーンスターチ、澱粉な
どの天然高分子物質３０〜８０重量％、ポリビニルアル
コールなどの親水性樹脂２０〜４０重量％、ポリエチレ
ン、ポリプロピレンなどの熱可塑性樹脂１０〜２０重量
％、ポリエチレングリコールなどの軟化剤５〜１０重量
％、加工性向上剤として脂肪３〜１０重量％、グリセリ
ンなどのカップリング材３〜１０重量％、水０〜２重量
％からなる材料により構成され、これらの材料を混合し
たものを二軸押出機により製造された生物崩壊性樹脂組
成物である。In order to solve the above-mentioned problems, a first object of the present invention is to use 30 to 80% by weight of a natural polymer such as corn starch and starch, and 20 to 80% by weight of a hydrophilic resin such as polyvinyl alcohol. 40% by weight, 10 to 20% by weight of a thermoplastic resin such as polyethylene or polypropylene, 5 to 10% by weight of a softening agent such as polyethylene glycol, 3 to 10% by weight of a fat as a processability improver, and 3 to 3% of a coupling material such as glycerin. The biodegradable resin composition is composed of a material consisting of 10% by weight and water of 0 to 2% by weight, and a mixture of these materials is produced by a twin-screw extruder.
【０００５】本願発明の第２のものは、コーンスター
チ、澱粉などの天然高分子物質３０〜８０重量％、ポリ
ビニルアルコールなどの親水性樹脂２０〜４０重量％、
ポリエチレン、ポリプロピレンなどの熱可塑性樹脂１０
〜２０重量％、ポリエチレングリコールなどの軟化剤５
〜１０重量％、加工性向上剤として脂肪３〜１０重量
％、グリセリンなどのカップリング材３〜１０重量％、
水０〜２重量％からなる材料を使用し、これらの材料を
混合して、二軸押出機によって製造する生物崩壊性樹脂
組成物の製造方法である。A second aspect of the present invention is that 30 to 80% by weight of a natural polymer such as corn starch and starch, 20 to 40% by weight of a hydrophilic resin such as polyvinyl alcohol,
Thermoplastic resin 10 such as polyethylene and polypropylene
~ 20% by weight, softener 5 such as polyethylene glycol
10 to 10% by weight, fat as a processability improver 3 to 10% by weight, coupling material such as glycerin 3 to 10% by weight,
This is a method for producing a biodegradable resin composition using a material composed of 0 to 2% by weight of water, mixing these materials, and producing the biodegradable resin composition using a twin-screw extruder.
【０００６】ここで、上記天然高分子物質としては、例
えば、いも類、米麦類、穀物類、コーンやタピオカ類等
の澱粉含有物から得た澱粉、化学分解変性澱粉、酸素変
性澱粉、物理的変性澱粉等が含まれる。より詳しくは、
生澱粉としては、トウモロコシ澱粉、わらび澱粉、クズ
澱粉、馬鈴薯澱粉、小麦澱粉、大麦澱粉、米澱粉、キッ
サバ澱粉、サゴ澱粉、タピオカ澱粉、モロコシ澱粉、豆
澱粉、ハス澱粉、ヒシ澱粉、甘藷澱粉等を挙げることが
できる。[0006] Here, the natural high molecular substances include, for example, starch obtained from starch-containing substances such as potatoes, rice and wheat, cereals, corn and tapioca, chemically degraded starch, oxygen-modified starch, and physical starch. And chemically modified starch. More specifically,
As raw starch, corn starch, bracken starch, kuzu starch, potato starch, wheat starch, barley starch, rice starch, kissava starch, sago starch, tapioca starch, sorghum starch, bean starch, lotus starch, heishi starch, sweet potato starch, etc. Can be mentioned.
【０００７】化学分解変性澱粉としては、アリルエーテ
ル化澱粉、カルボキシメチルエーテル化澱粉、ヒドロキ
シメチルエーテル化澱粉、ヒドロキシプロピルエーテル
化澱粉、メチルエーテル化澱粉、燐酸架橋澱粉、ホルム
アルデイド架橋澱粉、エピクロルヒドリン架橋澱粉、ア
クロレイン架橋澱粉、アセト酢酸エステル化澱粉、酢酸
エステル化澱粉、コハク酢酸エステル化澱粉、キサトゲ
ン酢酸エステル化澱粉、硝酸エステル化澱粉、尿素燐酸
エステル化澱粉、燐酸エステル化澱粉などの化学分解変
性澱粉誘導体とジアルデイド澱粉、酸処理澱粉、次亜塩
素酸酸化澱粉等が挙げられる。酸素変性澱粉としては、
加水分解デキストリン、酵素分解デキストリン、アミロ
ース等、物理的変性澱粉としては、α−澱粉、分別アミ
ロース、湿熱処理澱粉等が挙げられる。[0007] Chemically modified starches include allyl etherified starch, carboxymethyl etherified starch, hydroxymethyl etherified starch, hydroxypropyl etherified starch, methyl etherified starch, phosphoric acid crosslinked starch, formaldehyde crosslinked starch, epichlorohydrin crosslinked starch. Chemically degraded starch derivatives such as acrolein-crosslinked starch, acetoacetate-starch, acetate-starch, succinate-esterify-starch, xatogen-acetate-starch, nitrate-starch, urea-phosphate-starch, and phosphate-starch And dialdide starch, acid-treated starch, hypochlorite oxidized starch, and the like. As oxygen-modified starch,
Examples of physically modified starch such as hydrolyzed dextrin, enzymatically decomposed dextrin, amylose and the like include α-starch, fractionated amylose, heat-moisture treated starch and the like.
【０００８】上記親水性樹脂としては、例えば、ポリビ
ニルアルコール（ＰＶＡ）、ポリアクリル酸（ＰＡ
Ａ）、ポリエチレン−アクリル酸（ＥＡＡ）など、水酸
基又はカルボキシル基をもったポリマーを挙げることが
できる。[0008] Examples of the hydrophilic resin include polyvinyl alcohol (PVA) and polyacrylic acid (PA).
A) and polymers having a hydroxyl group or a carboxyl group, such as polyethylene-acrylic acid (EAA).
【０００９】上記熱可塑性樹脂としては、例えば、ポリ
エチレン、ポリブロピレン、ポリスチレン、ポリウレタ
ン、ポリオレフィン、ビニルポリマー、ポリアクリロニ
トリロ、ポリアクリレート、ポリメタアクリレート、ポ
リアセタール、熱可塑性重縮合物、ポリアリールエーテ
ル、熱可塑性ポリイミド、ポリイソブチレン、ポリ塩化
ビニル、ポリ酢酸ビニル、ポリスチレン、ポリアミド、
ポリエステル、ポリカーボネート、ポリアルキレンテル
フタレート、アルキレン／ビニルエステルコポリマー、
アルキレン／アクリレート又はメタクリレートコポリマ
ー、スチレン／アクリロニトリルコポリマー、アミドエ
ーテル、アミドエステルのブロックポリマー、エチレン
／酢酸ビニルコポリマー、エチレン／アクリル酸コポリ
マー、エチレン／エチルアクリレートコポリマー、エチ
レン／メタクリレートコポリマー、スチレン／アクリレ
ートニトリルコポリマー、エチレン／無水マレイン酸コ
ポリマー、アミドエーテル、アミドエステルのブロック
ポリマー、ウレタンエーテル、ウレタンエステルのブロ
ックポリマーなどが挙げられる。Examples of the thermoplastic resin include polyethylene, polypropylene, polystyrene, polyurethane, polyolefin, vinyl polymer, polyacrylonitrile, polyacrylate, polymethacrylate, polyacetal, thermoplastic polycondensate, polyaryl ether, thermoplastic Polyimide, polyisobutylene, polyvinyl chloride, polyvinyl acetate, polystyrene, polyamide,
Polyester, polycarbonate, polyalkylene terephthalate, alkylene / vinyl ester copolymer,
Alkylene / acrylate or methacrylate copolymer, styrene / acrylonitrile copolymer, amide ether, amide ester block polymer, ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, ethylene / ethyl acrylate copolymer, ethylene / methacrylate copolymer, styrene / acrylate nitrile copolymer, Examples include ethylene / maleic anhydride copolymer, amide ether, amide ester block polymer, urethane ether, urethane ester block polymer, and the like.
【００１０】上記軟化剤としては、例えば、ポリエチレ
ングリコール、ポリプロピレングリコール、ポリエチレ
ンプロピレングリコール、トリアセテート、プロピレン
グリコール、ジエチルスホコハク酸ナトリウム、クエン
酸トリブチルなどが挙げられる。上記加工性向上剤とし
ては、動物性脂肪や植物性脂肪、例えば、牛脂、豚脂、
鯨脂などが挙げられる。上記カップリング剤としては、
グリセリンなどの多価アルコール、例えば、グリセリ
ン、トリメチロールプロパン、ペンタエリスリトール、
エチレングリコール、ジエチレングリコール、トリエチ
レングリコール、ポリエチレングリコール、プロピレン
グリコール、ジプロピレングリコール、ポリプロピレン
グリコール、マンニトール、ソルビトール等が挙げられ
る。[0010] Examples of the softener include polyethylene glycol, polypropylene glycol, polyethylene propylene glycol, triacetate, propylene glycol, sodium diethylsuccinate, and tributyl citrate. As the processability improver, animal fats and vegetable fats, for example, tallow, lard,
And whale fat. As the above coupling agent,
Polyhydric alcohols such as glycerin, for example, glycerin, trimethylolpropane, pentaerythritol,
Examples include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, mannitol, sorbitol and the like.
【００１１】以上のように、本願発明に係る組成物にお
いては、タルク、炭酸カルシウムなどの粒子状充填剤、
耐水性を付与するための大豆タンパク、卵白、ゼラチン
等の蛋白質、更には、各種の核剤等を使用する必要がな
く、上記構成要素を、特別な条件下に置く必要もなく、
単に攪拌混合するのみで、材料が用意され、押出機によ
って簡単に完成する。他方、その製造方法においても、
加熱処理或いは加圧処理等の特別な前処理工程を一切必
要とせずに、１つの混合機によって上記構成要素を単に
混合し、その後、特に水を添加する必要もなく、二軸押
出機によって簡単に成形し、製造することができるもの
である。As described above, in the composition according to the present invention, a particulate filler such as talc or calcium carbonate is used.
Proteins such as soy protein, egg white, and gelatin for imparting water resistance, furthermore, there is no need to use various nucleating agents and the like, and the above components do not need to be placed under special conditions,
The materials are prepared simply by stirring and mixing, and are easily completed by an extruder. On the other hand, in the manufacturing method,
The above components are simply mixed by one mixer without any special pre-treatment step such as heat treatment or pressure treatment, and thereafter, there is no need to add water in particular, and it is easy to use with a twin screw extruder It can be molded and manufactured.
【００１２】[0012]
【発明の実施の形態】本願発明に係る生物崩壊性樹脂組
成物は、コーンスターチ、澱粉などの天然高分子物質３
０〜８０重量％、ポリビニルアルコールなどの親水性樹
脂２０〜４０重量％、ポリエチレン、ポリプロピレンな
どの熱可塑性樹脂１０〜２０重量％、軟化剤としてポリ
エチレングリコール５〜１０重量％、加工性向上剤とし
て脂肪３〜１０重量％、カップリング材としてグリセン
リン３〜１０重量％、水０〜２重量％からなる材料によ
り構成され、これらの材料を混合機により混合したもの
を二軸押出機により成形し、製造したものである。BEST MODE FOR CARRYING OUT THE INVENTION The biodegradable resin composition according to the present invention comprises natural polymer substances such as corn starch and starch.
0 to 80% by weight, 20 to 40% by weight of a hydrophilic resin such as polyvinyl alcohol, 10 to 20% by weight of a thermoplastic resin such as polyethylene and polypropylene, 5 to 10% by weight of polyethylene glycol as a softener, and fat as a processability improver 3 to 10% by weight, 3 to 10% by weight of glycerin as a coupling material, and 0 to 2% by weight of water. These materials are mixed by a mixer and molded by a twin screw extruder to produce. It was done.
【００１３】その具体的な製造方法としては、ヘンシェ
ルタイプミキサーなどの高速渦流混合機において、上記
の成分比率で、上記天然高分子物質と、親水性樹脂であ
るポリビニルアルコールと、熱可塑性樹脂としてのポリ
エチレンと、軟化剤としてのポリエチレングリコール
と、加工性向上剤としての脂肪を均一となるまで攪拌混
合し、粒子が均一に混合した後に、カップリング剤とし
てのグリセリンと水を加えて再び均一になるまで攪拌混
合し、この混合材料を二軸押出機によって棒状又は帯状
の成形物を製造し、その後これらの棒状又は帯状成形物
を短く切断して、粒状に形成することにより、本願発明
に係る組成物が完成する。As a specific production method, in a high-speed vortex mixer such as a Henschel type mixer, the above-mentioned natural polymer substance, a hydrophilic resin polyvinyl alcohol, and a thermoplastic resin Polyethylene, polyethylene glycol as a softening agent, and fat as a processability improver are stirred and mixed until uniform, and after the particles are uniformly mixed, glycerin and water as a coupling agent are added to make the mixture uniform again. The mixture according to the present invention is manufactured by producing a rod-shaped or band-shaped molded product by a twin-screw extruder, and thereafter cutting these rod-shaped or band-shaped molded products into granules. Things are completed.
【００１４】製造時の二軸押出機の各設定条件は、温度
分布がＣ１／常温〜８０°Ｃ、Ｃ２／１２０°Ｃ、Ｃ３
〜Ｃ１０／１８０°Ｃ〜２００°Ｃ、回転数が８０ｒｐ
ｍ、圧力が２０〜４０Ｋｇ／ｃｍ２ である。ヘンシェ
ルタイプミキサーは、バッチタイプであるため、連続的
に二軸押出機によって製造する場合は、ミキサーと二軸
押出機の間にストックタンクを配備しておけば、連続的
に製造することが可能となる。Each set condition of the twin-screw extruder at the time of production is such that the temperature distribution is C1 / normal temperature to 80 ° C, C2 / 120 ° C, C3
~ C10 / 180 ° C ~ 200 ° C, rotation speed is 80rpm
m, pressure is 20 to 40 Kg / cm2. Since the Henschel type mixer is a batch type, it can be manufactured continuously by installing a stock tank between the mixer and the twin-screw extruder when continuously manufacturing with a twin-screw extruder. Becomes
【００１５】ここで再度より一般的にその製造方法を記
載すれば、本願発明に係る生物崩壊性樹脂組成物は、ヘ
ンシェルタイプミキサーなどの高速渦流混合機におい
て、コーンスターチ、澱粉などの天然高分子物質３０〜
８０重量％、ポリビニルアルコールなどの親水性樹脂２
０〜４０重量％、ポリエチレン、ポリプロピレンなどの
熱可塑性樹脂１０〜２０重量％、ポリエチレングリコー
ルなどの軟化剤５〜１０重量％、及び加工性向上剤とし
て脂肪３〜１０重量％を、均一となるまで攪拌混合し、
粒子が均一に混合した後に、グリセリンなどのカップリ
ング材３〜１０重量％及び水０〜２重量％を加え、再び
均一になるまで攪拌混合し、この混合材料を二軸押出機
によって製造したものである。Here again, the production method will be described more generally. The biodegradable resin composition according to the present invention can be used in a high-speed vortex mixer such as a Henschel type mixer to produce a natural polymer such as corn starch and starch. 30 ~
80% by weight, hydrophilic resin 2 such as polyvinyl alcohol
0 to 40% by weight, 10 to 20% by weight of a thermoplastic resin such as polyethylene and polypropylene, 5 to 10% by weight of a softening agent such as polyethylene glycol, and 3 to 10% by weight of a fat as a processability improver until uniform Stir and mix,
After the particles are uniformly mixed, 3 to 10% by weight of a coupling material such as glycerin and 0 to 2% by weight of water are added, and the mixture is stirred and mixed again until it becomes uniform, and this mixed material is produced by a twin screw extruder. It is.
【００１６】[0016]
【発明の効果】以上の通り、本願発明においては、その
構成要素を単に攪拌、混合したものを二軸押出機によっ
て製造することができ、加熱処理或いは加圧処理等の特
別な前処理工程も全く必要なく、二軸押出機によって簡
単に生物崩壊性樹脂組成物を製造することができ、製造
コストの低減化に貢献することができた。従って、安価
にかかる生物崩壊性樹脂組成物を提供することができ
る。更に、本願発明に係る組成物は、そのまま従来から
存在している各種のプラスチック成形加工機によってフ
ィルム、シート、トレイ、及びボトル等の各種の成形品
を製造することができ、成形された製品は、十分な耐水
性を備えるものである。As described above, in the present invention, components obtained by simply stirring and mixing the components can be produced by a twin-screw extruder, and special pretreatment steps such as heat treatment or pressure treatment are also possible. The biodegradable resin composition could be easily produced by a twin-screw extruder without any need, and it was possible to contribute to a reduction in production cost. Therefore, such a biodegradable resin composition can be provided at low cost. Furthermore, the composition according to the present invention can be used to produce various molded products such as films, sheets, trays, and bottles using various types of plastic molding machines that have been conventionally used. , With sufficient water resistance.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） (Ｃ０８Ｌ 3/00 29:04 101:00 71:02 91:00） Ｆターム(参考） 4F071 AA08 AA15 AA20 AA29 AA51 AA71 AB17 AC05 AH04 BB06 BC01 BC04 4F207 AA01 AA04 AA11 AA19 AB07 AH54 AH55 AH58 KA01 KA17 KF01 KF02 KK13 KW45 4J002 AB04W AB05W BB013 BB023 BB063 BB073 BB083 BB093 BC033 BC063 BD043 BE01X BF023 BG01X BG043 BG053 BG08X BG103 CF003 CF053 CG003 CH014 CK023 CL073 CL083 EC046 EC048 EC058 ED036 ED038 EF057 EG026 EH046 FD024 FD026 FD148 GG01 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (reference) (C08L 3/00 29:04 101: 00 71:02 91:00) F term (reference) 4F071 AA08 AA15 AA20 AA29 AA51 AA71 AB17 AC05 AH04 BB06 BC01 BC04 4F207 AA01 AA04 AA11 AA19 AB07 AH54 AH55 AH58 KA01 KA17 KF01 KF02 KK13 KW45 4J002 AB04W AB05W BB013 BB023 BB063 BB073 BB083 BB093 BC033 BC063 BD043 BE01X BF023 BG01X BG043 BG053 BG08X BG103 CF003 CF053 CG003 CH014 CK023 CL073 CL083 EC046 EC048 EC058 ED036 ED038 EF057 EG026 EH046 FD024 FD026 FD148 GG01
Claims (2)
質３０〜８０重量％、ポリビニルアルコールなどの親水
性樹脂２０〜４０重量％、ポリエチレン、ポリプロピレ
ンなどの熱可塑性樹脂１０〜２０重量％、ポリエチレン
グリコールなどの軟化剤５〜１０重量％、加工性向上剤
として脂肪３〜１０重量％、グリセリンなどのカップリ
ング材３〜１０重量％、水０〜２重量％からなる材料に
より構成され、これらの材料を混合したものを二軸押出
機により製造された生物崩壊性樹脂組成物。1. 30 to 80% by weight of a natural polymer such as corn starch and starch; 20 to 40% by weight of a hydrophilic resin such as polyvinyl alcohol; 10 to 20% by weight of a thermoplastic resin such as polyethylene and polypropylene; 5 to 10% by weight of a softening agent, 3 to 10% by weight of a fat as a processability improver, 3 to 10% by weight of a coupling material such as glycerin, and 0 to 2% by weight of water. A biodegradable resin composition produced by mixing the mixture with a twin-screw extruder.
質３０〜８０重量％、ポリビニルアルコールなどの親水
性樹脂２０〜４０重量％、ポリエチレン、ポリプロピレ
ンなどの熱可塑性樹脂１０〜２０重量％、ポリエチレン
グリコールなどの軟化剤５〜１０重量％、加工性向上剤
として脂肪３〜１０重量％、グリセリンなどのカップリ
ング材３〜１０重量％、水０〜２重量％からなる材料を
使用し、これらの材料を混合して、二軸押出機によって
製造する生物崩壊性樹脂組成物の製造方法。2. 30 to 80% by weight of a natural polymer such as corn starch and starch; 20 to 40% by weight of a hydrophilic resin such as polyvinyl alcohol; 10 to 20% by weight of a thermoplastic resin such as polyethylene and polypropylene; 5-10% by weight of a softener, 3-10% by weight of a fat as a processability improver, 3-10% by weight of a coupling material such as glycerin, and 0-2% by weight of water. A method for producing a biodegradable resin composition which is mixed and produced by a twin-screw extruder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11200342A JP2001026667A (en) | 1999-07-14 | 1999-07-14 | Biodegradable resin composition and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11200342A JP2001026667A (en) | 1999-07-14 | 1999-07-14 | Biodegradable resin composition and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001026667A true JP2001026667A (en) | 2001-01-30 |
Family
ID=16422704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11200342A Pending JP2001026667A (en) | 1999-07-14 | 1999-07-14 | Biodegradable resin composition and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001026667A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002020536A (en) * | 2000-07-11 | 2002-01-23 | Clean Earth Kk | Biodegradable resin composition having antimicrobial property |
| KR20020029050A (en) * | 2002-03-29 | 2002-04-17 | 주식회사 나선하이테크 | Disasemble resin and the manufacturing method for thereof |
| JP2003009994A (en) * | 2001-07-04 | 2003-01-14 | Toyota Motor Corp | Interior part for vehicle |
| WO2003006545A1 (en) * | 2001-07-13 | 2003-01-23 | Biorepla Corporation | Biodegradable plastic composition |
| KR100488438B1 (en) * | 2002-07-15 | 2005-05-11 | 이승섭 | Disposable plastic container with high disintegrative composition |
| JP2013018894A (en) * | 2011-07-12 | 2013-01-31 | Kitami Institute Of Technology | Resin composition, molded body, method for manufacturing resin composition, and method for photooxidatively deteriorating polyolefinic resin |
-
1999
- 1999-07-14 JP JP11200342A patent/JP2001026667A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002020536A (en) * | 2000-07-11 | 2002-01-23 | Clean Earth Kk | Biodegradable resin composition having antimicrobial property |
| JP2003009994A (en) * | 2001-07-04 | 2003-01-14 | Toyota Motor Corp | Interior part for vehicle |
| WO2003006545A1 (en) * | 2001-07-13 | 2003-01-23 | Biorepla Corporation | Biodegradable plastic composition |
| KR20020029050A (en) * | 2002-03-29 | 2002-04-17 | 주식회사 나선하이테크 | Disasemble resin and the manufacturing method for thereof |
| KR100488438B1 (en) * | 2002-07-15 | 2005-05-11 | 이승섭 | Disposable plastic container with high disintegrative composition |
| JP2013018894A (en) * | 2011-07-12 | 2013-01-31 | Kitami Institute Of Technology | Resin composition, molded body, method for manufacturing resin composition, and method for photooxidatively deteriorating polyolefinic resin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4553875B2 (en) | Biodegradable resin composition and biodegradable film | |
| JPH0725940B2 (en) | Polymer-based blend composition containing modified starch | |
| JPH0725941B2 (en) | Polymer-based blend composition containing modified starch | |
| CN105218868B (en) | The one thermoplastic starch-based Biodegradable material of step modified hydrophobic type and preparation method | |
| CN1134950A (en) | Thermoplastic compositions comprising starch and other components from natural origin | |
| CA2254058A1 (en) | Biodegradable polyester and natural polymer compositions and expanded articles therefrom | |
| JP2003055470A (en) | Biodegradable resin composition | |
| US20050176856A1 (en) | Disasemble resin and the manufacturing method for thereof | |
| JP2001026667A (en) | Biodegradable resin composition and its production | |
| KR0164270B1 (en) | Water humidity resistant starch foams | |
| JP3933315B2 (en) | Composite resin composition | |
| JPH04202567A (en) | Resin composition | |
| JP2001200084A (en) | Cellulose acetate based resin foam with biodegradability and also excellent mechanical property and heat moldability, and cellulose acetate based resin foam molded article with biodegradability and also excellent mechanical property and dimensional stability | |
| JP2002020536A (en) | Biodegradable resin composition having antimicrobial property | |
| JP3108472B2 (en) | Biodegradable resin composition | |
| US5739244A (en) | Polymer composition containing prime starch | |
| JPH0649276A (en) | Biodegradable plastic composition containing gelatinized starch and its production | |
| JPH04132748A (en) | Production of bio-decomposable sheet | |
| JP2001316520A (en) | Biodegradable resin composition | |
| JP3078478B2 (en) | Composition for biodegradable molded article and method for producing biodegradable molded article | |
| TW552290B (en) | Biodegradable blend composition of starch and plastic, and production method therefor | |
| JPH08151468A (en) | Resin composition for injection foaming and molded object obtained therefrom | |
| JPH07113028A (en) | Ionomer composition and production thereof | |
| JP3133415B2 (en) | Biodegradable resin composition | |
| JP3025058B2 (en) | Biodegradable resin composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060711 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20081222 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090105 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20090501 |