JPH04248851A - Biodegradable composition and sheet - Google Patents
Biodegradable composition and sheetInfo
- Publication number
- JPH04248851A JPH04248851A JP2578091A JP2578091A JPH04248851A JP H04248851 A JPH04248851 A JP H04248851A JP 2578091 A JP2578091 A JP 2578091A JP 2578091 A JP2578091 A JP 2578091A JP H04248851 A JPH04248851 A JP H04248851A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- composition
- present
- starch
- weight
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 16
- 229920002472 Starch Polymers 0.000 claims abstract description 10
- 239000008107 starch Substances 0.000 claims abstract description 9
- 229920003232 aliphatic polyester Polymers 0.000 claims abstract description 8
- 239000004645 polyester resin Substances 0.000 claims abstract description 7
- 235000019698 starch Nutrition 0.000 claims description 9
- 108010082495 Dietary Plant Proteins Proteins 0.000 claims description 7
- 244000005700 microbiome Species 0.000 abstract description 3
- 239000012778 molding material Substances 0.000 description 5
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229920006238 degradable plastic Polymers 0.000 description 2
- 239000013502 plastic waste Substances 0.000 description 2
- -1 polyethylene adipate Polymers 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- WHBMMWSBFZVSSR-UHFFFAOYSA-N 3-hydroxybutyric acid Chemical compound CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 108010068370 Glutens Proteins 0.000 description 1
- 244000017020 Ipomoea batatas Species 0.000 description 1
- 235000002678 Ipomoea batatas Nutrition 0.000 description 1
- 102000004882 Lipase Human genes 0.000 description 1
- 108090001060 Lipase Proteins 0.000 description 1
- 239000004367 Lipase Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229920001397 Poly-beta-hydroxybutyrate Polymers 0.000 description 1
- 229920000331 Polyhydroxybutyrate Polymers 0.000 description 1
- 235000005733 Raphanus sativus var niger Nutrition 0.000 description 1
- 244000155437 Raphanus sativus var. niger Species 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 235000021028 berry Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000021312 gluten Nutrition 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 150000001261 hydroxy acids Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 235000019421 lipase Nutrition 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 229920000921 polyethylene adipate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は微生物分解性組成物及び
シートに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to microbially degradable compositions and sheets.
【０００２】0002
【従来の技術及びその問題点】従来、プラスチック廃棄
物問題の解決策の一つとして、プラスチックにでん粉を
混入したものを成形材料として用いて、微生物崩壊型の
シートやそれらの成形物を用いることが提案されている
。しかし、この様な微生物崩壊型のものは、でん粉の部
分は微生物によって分解されるが、プラスチックの部分
が分解されずに残り、プラスチック廃棄物問題の根本的
な解決にはなっていない。[Prior art and its problems] Conventionally, one of the solutions to the plastic waste problem has been to use plastic mixed with starch as a molding material, and to use microbially degradable sheets and molded products thereof. is proposed. However, in such microorganism-degradable products, although the starch part is decomposed by microorganisms, the plastic part remains undecomposed, and this does not provide a fundamental solution to the plastic waste problem.
【０００３】そこで、最近になって多糖類や植物性タン
パク質からなる微生物完全分解型のプラスチックが開発
され、廃棄物問題の解決策として大きく注目されている
。しかし、それ等の微生物完全分解型のプラスチックも
従来使用されていた非分解型のプラスチックと比較する
と、機械的強度、成形性等あらゆる面でいまだ問題を残
すものである。[0003] Therefore, recently, microbially completely degradable plastics made of polysaccharides and vegetable proteins have been developed and are attracting much attention as a solution to the waste problem. However, these plastics that are completely decomposed by microorganisms still have problems in all aspects, such as mechanical strength and moldability, when compared to non-degradable plastics that have been used in the past.
【０００４】0004
【発明が解決しようとする課題】本発明は、完全微生物
分解性を有し、かつ機械的強度及び耐熱性にすぐれた実
用性ある組成物及びシートを安価に提供することをその
課題とする。SUMMARY OF THE INVENTION An object of the present invention is to provide at low cost practical compositions and sheets that are fully biodegradable and have excellent mechanical strength and heat resistance.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、前記課題
を解決すべく鋭意研究を重ねた結果、脂肪族ポリエステ
ル樹脂２０〜８０重量％と植物性タンパク質及び／又は
でん粉８０〜２０重量％との混合物を成形材料として用
いることによって前記課題を解決し得ることを見出し、
本発明を完成するに至った。[Means for Solving the Problems] As a result of extensive research to solve the above problems, the present inventors have found that 20 to 80% by weight of aliphatic polyester resin and 80 to 20% by weight of vegetable protein and/or starch. discovered that the above problem could be solved by using a mixture of as a molding material,
The present invention has now been completed.
【０００６】即ち、本発明によれば、脂肪族ポリエステ
ル樹脂２０〜８０重量％と植物性タンパク質及び／又は
でん粉８０〜２０重量％からなる微生物分解性組成物が
提供される。That is, according to the present invention, there is provided a microbially degradable composition comprising 20 to 80% by weight of an aliphatic polyester resin and 80 to 20% by weight of vegetable protein and/or starch.
【０００７】また、本発明によれば、前記組成物らなる
微生物分解性シートが提供される。According to the present invention, there is also provided a microbially degradable sheet comprising the composition.
【０００８】本発明で用いる微生物分解性を有する脂肪
族ポリエステル樹脂は、二塩基酸を含む多価カルボン酸
とジオールを含む多価アルコールの重縮合物、ヒドロキ
シ酸の重縮合物、ラクトンの開環重合物等であって、リ
パーゼの作用により加水分解される。具体的には、ポリ
エチレンアジペート、ポリプロピオラクトン、ポリカプ
ロラクトン、ポリ−β−ヒドロキシ酪酸、ポリ−β−ヒ
ドロキシブチレート又はそれらの共重合体あるいは混合
物等がある。The microbially degradable aliphatic polyester resin used in the present invention is a polycondensate of a polycarboxylic acid containing a dibasic acid and a polyhydric alcohol containing a diol, a polycondensate of a hydroxy acid, or a ring-opened lactone. It is a polymer, etc., and is hydrolyzed by the action of lipase. Specific examples include polyethylene adipate, polypropiolactone, polycaprolactone, poly-β-hydroxybutyric acid, poly-β-hydroxybutyrate, or copolymers or mixtures thereof.
【０００９】本発明で用いる植物性タンパク質としては
小麦から得られるグルテン、大自から得られるカゼイン
等が挙げられる。また、でん粉としては、トウモロコシ
、小麦、米、ジャガイモ、さつまいも等を原料とする各
種のでん粉が挙げられる。[0009] The vegetable proteins used in the present invention include gluten obtained from wheat, casein obtained from Japanese daikon berries, and the like. Furthermore, examples of starch include various starches made from corn, wheat, rice, potato, sweet potato, and the like.
【００１０】本発明の組成物は、脂肪族ポリエステル樹
脂と、植物性タンパク質及び／又はでん粉に、グリセリ
ン、ジエチレングリコール等の多価アルコールや、水等
の溶媒を可塑剤として加え、加圧ニーダーを用いて混練
することにより得られる。この組成物は、粉体状の他、
ペレット状で成形材料として用いられる。本発明のシー
トは、この組成物を成形材料として用い、そのままある
いはＴダイスより押出し、加熱プレスにより圧縮加熱成
形することにより得ることができる。The composition of the present invention is prepared by adding a polyhydric alcohol such as glycerin or diethylene glycol or a solvent such as water to an aliphatic polyester resin, vegetable protein and/or starch as a plasticizer, and using a pressure kneader. It is obtained by kneading. This composition is available in powder form as well as
It is used as a molding material in pellet form. The sheet of the present invention can be obtained by using this composition as a molding material as it is or by extruding it from a T-die and compression-heat molding it with a hot press.
【００１１】本発明の組成物において、一般的に、脂肪
族ポリエステル樹脂の使用割合は、２０〜８０重量％で
あり、植物性タンパク質及び／又はでん粉は８０〜２０
重量％である。脂肪族ポリエステルの含有率が少なすぎ
ると引張等の機械的強度が不十分になり、多すぎると耐
熱性が損われるようになる。また、本発明においては、
強度及び耐熱性の向上や、燃焼性低下のために、必要に
応じ、無機フィラーを添加することもできる。無機フィ
ラーとしては、炭酸カルシウムや炭酸マグネシウム、水
酸化カルシウム、水酸化マグネシウム、カオリン、タル
ク、シリカ、アルミナ、硫酸マグネシウム等が挙げられ
る。無機フィラーの添加量は、全混合物に対し、０〜７
０重量％である。In the composition of the present invention, the proportion of aliphatic polyester resin used is generally 20 to 80% by weight, and the proportion of vegetable protein and/or starch used is 80 to 20% by weight.
Weight%. If the aliphatic polyester content is too low, mechanical strength such as tensile strength will be insufficient, and if it is too high, heat resistance will be impaired. Furthermore, in the present invention,
In order to improve strength and heat resistance and reduce combustibility, an inorganic filler can be added as necessary. Examples of the inorganic filler include calcium carbonate, magnesium carbonate, calcium hydroxide, magnesium hydroxide, kaolin, talc, silica, alumina, magnesium sulfate, and the like. The amount of inorganic filler added is 0 to 7 with respect to the whole mixture.
It is 0% by weight.
【００１２】0012
【発明の効果】本発明の樹脂組成物及びシートは、完全
微生物分解性を有し、かつ耐熱性及び機械的強度におい
てもすぐれている上、安価である。特にシートは、実用
性ある微生物分解性包装材料として使用される他、成形
用材料として有利に用いられる。Effects of the Invention The resin composition and sheet of the present invention are fully biodegradable, have excellent heat resistance and mechanical strength, and are inexpensive. In particular, the sheet is used not only as a practical microbially degradable packaging material but also as a molding material.
Claims (2)
量％と植物性タンパク質及び／又はでん粉８０〜２０重
量％からなる微生物分解性組成物。1. A microbially degradable composition comprising 20 to 80% by weight of an aliphatic polyester resin and 80 to 20% by weight of vegetable protein and/or starch.
性シート。2. A microbially degradable sheet comprising the composition of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2578091A JPH04248851A (en) | 1991-01-25 | 1991-01-25 | Biodegradable composition and sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2578091A JPH04248851A (en) | 1991-01-25 | 1991-01-25 | Biodegradable composition and sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04248851A true JPH04248851A (en) | 1992-09-04 |
Family
ID=12175354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2578091A Pending JPH04248851A (en) | 1991-01-25 | 1991-01-25 | Biodegradable composition and sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04248851A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05239265A (en) * | 1991-06-17 | 1993-09-17 | Ems Inventa Ag | Starch/polymer mixture, preparation thereof, and thermoplastic molding obtained therefrom |
| JPH0649276A (en) * | 1991-10-04 | 1994-02-22 | Agency Of Ind Science & Technol | Biodegradable plastic composition containing gelatinized starch and its production |
| JPH06502676A (en) * | 1991-05-03 | 1994-03-24 | ノバモント・ソシエタ・ペル・アチオニ | Biodegradable polymer compositions based on starch and thermoplastic polymers |
| JPH06172621A (en) * | 1992-05-13 | 1994-06-21 | Showa Highpolymer Co Ltd | Polyester resin composition |
| US5412005A (en) * | 1991-05-03 | 1995-05-02 | Novamont S.P.A. | Biodegradable polymeric compositions based on starch and thermoplastic polymers |
| EP0704495A2 (en) | 1994-09-28 | 1996-04-03 | Nihon Shokuhin Kako Co., Ltd. | Biodegradable compositions |
| JP2015030845A (en) * | 2013-08-07 | 2015-02-16 | ネクサス株式会社 | Biodegradable resin composition and method for producing the same |
-
1991
- 1991-01-25 JP JP2578091A patent/JPH04248851A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06502676A (en) * | 1991-05-03 | 1994-03-24 | ノバモント・ソシエタ・ペル・アチオニ | Biodegradable polymer compositions based on starch and thermoplastic polymers |
| US5412005A (en) * | 1991-05-03 | 1995-05-02 | Novamont S.P.A. | Biodegradable polymeric compositions based on starch and thermoplastic polymers |
| JPH05239265A (en) * | 1991-06-17 | 1993-09-17 | Ems Inventa Ag | Starch/polymer mixture, preparation thereof, and thermoplastic molding obtained therefrom |
| JPH0649276A (en) * | 1991-10-04 | 1994-02-22 | Agency Of Ind Science & Technol | Biodegradable plastic composition containing gelatinized starch and its production |
| JPH06172621A (en) * | 1992-05-13 | 1994-06-21 | Showa Highpolymer Co Ltd | Polyester resin composition |
| EP0704495A2 (en) | 1994-09-28 | 1996-04-03 | Nihon Shokuhin Kako Co., Ltd. | Biodegradable compositions |
| US5691403A (en) * | 1994-09-28 | 1997-11-25 | Nihon Shokuhin Kako Co., Ltd. | Biodegradable compositions |
| JP2015030845A (en) * | 2013-08-07 | 2015-02-16 | ネクサス株式会社 | Biodegradable resin composition and method for producing the same |
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