JPH0570696A - Container made of plastic - Google Patents

Container made of plastic

Info

Publication number
JPH0570696A
JPH0570696A JP23310691A JP23310691A JPH0570696A JP H0570696 A JPH0570696 A JP H0570696A JP 23310691 A JP23310691 A JP 23310691A JP 23310691 A JP23310691 A JP 23310691A JP H0570696 A JPH0570696 A JP H0570696A
Authority
JP
Japan
Prior art keywords
biodegradable plastic
container
filler
plastic
biodegradable
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.)
Granted
Application number
JP23310691A
Other languages
Japanese (ja)
Other versions
JP3044857B2 (en
Inventor
Masayuki Taniguchi
谷口　　正幸
Yoshihiro Nakagawa
善博 中川
Yusuke Terauchi
裕介 寺内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP23310691A priority Critical patent/JP3044857B2/en
Publication of JPH0570696A publication Critical patent/JPH0570696A/en
Application granted granted Critical
Publication of JP3044857B2 publication Critical patent/JP3044857B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

PURPOSE:To provide a biodegradable container, made of a plastic and capable of rapidly advancing degradation when discarded after use even if the container has a thick wall and having structural strength. CONSTITUTION:A container is obtained by blending a biodegradable plastic, e.g. a poly-3-hydroxybutyrate, a poly-4-hydroxybutyrate and a polyhydroxyvalerate copolymer which is a polyester produced by microorganisms, with 10-40% granular filler (e.g. calcium carbonate or hydrous magnesium silicate) having <=20mum average grain diameter.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は生分解性プラスチックか
らなる容器に関する。FIELD OF THE INVENTION The present invention relates to a container made of biodegradable plastic.

【０００２】[0002]

【従来の技術】近年の環境問題等で、分解性プラスチッ
クが注目されている。この分解性プラスチックには、カ
ビ、細菌等の微生物により、化学的に完全に分解する生
分解性のものがある。2. Description of the Related Art Due to recent environmental problems and the like, degradable plastics have attracted attention. Some of these degradable plastics are biodegradable ones that are completely chemically degraded by microorganisms such as mold and bacteria.

【０００３】これに対して、生分解性がない汎用プラス
チックと澱粉等の充填剤を混合したもので、微生物によ
り澱粉等が分解してプラスチック部分が残り、物理的に
弱くなりボロボロに崩れるだけの、崩壊性或いは部分分
解性のものがある。この崩壊性のものの中には、汎用プ
ラスチックの代わりに光分解性プラスチックを用いて更
に分解を進めるものがあるが、いずれも完全に分解する
ことはなく、分解しきれない高分子が環境中に残ってし
まい、あまり好ましくない。On the other hand, a general-purpose plastic having no biodegradability and a filler such as starch are mixed. Starch or the like is decomposed by microorganisms and the plastic part remains, which is physically weakened and crumbles into pieces. Some are disintegrating or partially degradable. Some of these disintegrating substances use photodegradable plastics instead of general-purpose plastics for further decomposition, but none of them are completely decomposed, and macromolecules that cannot be decomposed completely into the environment. It remains and is not so preferable.

【０００４】生分解性プラスチックには、微生物の産生
するポリエステル、脂肪族系のポリマーなどが知られて
いる。しかし、これらをボトルやカップというある程度
の強度を必要とするものに成形しようとすると、成形物
の肉厚が厚くなってしまい、微生物によって完全に分解
されるのに長い時間がかかる。As biodegradable plastics, polyesters produced by microorganisms, aliphatic polymers and the like are known. However, if these are to be molded into bottles or cups that require a certain amount of strength, the wall thickness of the molded product will increase, and it will take a long time for the microorganisms to completely decompose them.

【０００５】[0005]

【発明が解決しようとする課題】本発明は以上のような
問題点を解決するためになされたもので、その課題とす
るところは、容器が肉厚であっても、使用済みになり廃
棄されたら速やかに分解が進み、かつ構造的に強度のあ
る生分解性プラスチック製容器を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems. The problem is that even if the container is thick, it is used and discarded. The object of the present invention is to provide a biodegradable plastic container that is promptly decomposed and is structurally strong.

【０００６】[0006]

【課題を解決するための手段】本発明は以上のような課
題を解決するために、生分解性プラスチックに充填剤を
混合したことを特徴とする生分解性プラスチック製容器
を提供する。In order to solve the above problems, the present invention provides a biodegradable plastic container characterized in that a filler is mixed with the biodegradable plastic.

【０００７】以下、本発明について詳細に説明する。本
発明の充填剤として、平均粒径20μｍ以下のものを重量
比で10〜40％加えると、生分解性は著しく向上させるこ
とができ、かつ弾性率、引張強度などの強度を上げるこ
とができる。The present invention will be described in detail below. When the filler of the present invention having an average particle size of 20 μm or less is added in a weight ratio of 10 to 40%, the biodegradability can be remarkably improved and the strength such as elastic modulus and tensile strength can be increased. ..

【０００８】このときの充填剤としては、従来より強度
向上を目的にしたときに頻繁に用いられている、平均粒
径が20μｍ以下である炭酸カルシウム、含水珪酸マグネ
シウム（タルク）のほか、粒径が20μｍ以下のもので形
状が粒状のものであれば、従来より用いられている澱
粉、キチン・キトサンなどの天然物なども可能である。As the filler at this time, in addition to calcium carbonate having an average particle diameter of 20 μm or less, hydrous magnesium silicate (talc), which has been frequently used for the purpose of improving strength, particle diameters As long as it has a particle size of 20 μm or less and a granular shape, natural products such as starch and chitin / chitosan that have been conventionally used are also possible.

【０００９】形状が粒状でないもの、例えば鱗片状また
は針状のものなどは、分解過程において粒状のものより
抜け落ちが多く、また抜け落ちたときの表面積の増加も
大きいので分解性は上がるが、強度が弱い。また混合比
についても10〜40％が生分解性を向上させ、かつ強度を
上げることができる範囲であり、40％以上から強度が下
がる。Non-granular particles, such as scale-shaped or needle-shaped particles, are more likely to fall off than the granular ones in the decomposition process, and the surface area when they fall off is large, so the decomposability increases, but the strength is high. weak. Regarding the mixing ratio, 10 to 40% is a range in which biodegradability can be improved and strength can be increased, and strength decreases from 40% or more.

【００１０】一方、主体となる生分解性プラスチック
は、微生物の産生するポリエステルとして、ポリ−３−
ヒドロキシブチレート（３ＨＢ）及びポリ−４−ヒドロ
キシブチレート（４ＨＢ）、ポリヒドロキシバリレート
（ＰＨＶ）の共重合体が可能であり、脂肪族系のポリマ
ーとして、ポリカプロラクトン、ポリグリコリドとして
ポリ乳酸、ポリブリコリド、そして前記ポリマーの２種
以上の混合体が可能である。On the other hand, the main biodegradable plastic is poly-3-, which is a polyester produced by microorganisms.
A copolymer of hydroxybutyrate (3HB), poly-4-hydroxybutyrate (4HB) and polyhydroxyvalerate (PHV) is possible, and polycaprolactone is used as an aliphatic polymer, polylactic acid is used as polyglycolide, Polybricolids and mixtures of two or more of the above polymers are possible.

【００１１】[0011]

【作用】生分解性プラスチックの生分解は、表面に付着
した微生物が生産する生分解性プラスチック分解酵素に
より徐々に溶けていく様式である。生分解性プラスチッ
クに充填剤を混合すると分解酵素により表面の生分解性
プラスチックが溶け、充填剤が抜け落ちて表面積が著し
く増える。これにより分解酵素は、より内層に作用する
事ができるようになり、生分解性は著しく向上し、分解
に要する時間が短縮される。The biodegradation of biodegradable plastic is a mode in which it is gradually dissolved by the biodegradable plastic degrading enzyme produced by the microorganisms attached to the surface. When the filler is mixed with the biodegradable plastic, the degrading enzyme melts the biodegradable plastic on the surface, the filler falls off, and the surface area increases remarkably. This allows the degrading enzyme to act on the inner layer more, the biodegradability is remarkably improved, and the time required for the degradation is shortened.

【００１２】[0012]

【実施例】本発明を次の実施例で説明する。 ＜実施例１＞生分解性プラスチックとして、ポリ−３−
ヒドロキシブチレート−ポリ−３−ヒドロキシバリレー
ト共重合体（アイ・シー・アイ・ジャパン（株）製、商
品名「バイオポール」のボトル成形グレード）（以下、
３ＨＢ−３ＨＶとする。）を用いた。充填剤として平均
粒径10、20μｍの含水珪酸マグネシウム（タルク）を1
0、20、40、50％混合したマスターバッチを作成し、押
出ブロー成形機を用いてボトルを成形した。The present invention will be described in the following examples. <Example 1> As a biodegradable plastic, poly-3-
Hydroxybutyrate-poly-3-hydroxyvalerate copolymer (IC I Japan Co., Ltd., trade name "Biopol" bottle molding grade) (hereinafter,
3HB-3HV. ) Was used. Hydrous magnesium silicate (talc) with an average particle size of 10 and 20 μm is used as a filler.
A masterbatch containing 0, 20, 40, and 50% mixture was prepared, and a bottle was molded using an extrusion blow molding machine.

【００１３】比較例として、充填剤を平均粒径20、40μ
ｍの雲母（マイカ）を10、20％混合したもの、充填剤を
加えていないものを作成した。As a comparative example, the filler has an average particle size of 20, 40 μm.
A mica (mica) of 10 and 20% was mixed and a filler was not added.

【００１４】これらの生分解性と引張強度、及び耐衝撃
性を以下の方法により試験した。These biodegradability, tensile strength, and impact resistance were tested by the following methods.

【００１５】（ａ）第１試験 上記各容器をカビの１種であるペニシリウム−フニクロ
サム(Penicillium funiculosum) ＩＦＯ・６３４５菌液
より分離精製したポリヒドロキシブチレート分解酵素液
(蛋白質濃度50μｇ/ml)に２４時間浸漬し、ボトルの重
量を測定して、重量減少により生分解性を求めた。(A) First Test A polyhydroxybutyrate-degrading enzyme solution in which the above-mentioned containers were separated and purified from Penicillium funiculosum IFO-6345 bacterial solution, which is one type of mold.
It was immersed in (protein concentration of 50 μg / ml) for 24 hours, the weight of the bottle was measured, and the biodegradability was determined by the weight reduction.

【００１６】（ｂ）第２試験 上記各容器を細菌の１種であるアルカリゲネス−フェカ
リス(Alcaligenes feacalis −T1) より分離精製したポ
リヒドロキシブチレート分解酵素液 (蛋白質濃度50μｇ
/ml)に２４時間浸漬し、ボトルの重量を測定して、重量
減少により生分解性を求めた。(B) Second Test A polyhydroxybutyrate-degrading enzyme solution (protein concentration 50 μg) obtained by separating and purifying each of the above containers from Alcaligenes feacalis -T1 which is one kind of bacteria.
/ ml) for 24 hours, the weight of the bottle was measured, and the biodegradability was determined by the weight reduction.

【００１７】（ｃ）第３試験 自然環境での生分解性を確認するために、上記各容器を
畑に埋めて、６ケ月まで経時的に重量を測定して、重量
減少により生分解性を求めた。(C) Third test In order to confirm biodegradability in a natural environment, each of the above-mentioned containers was buried in a field, and the weight was measured with time until 6 months. I asked.

【００１８】（ｄ）引張強度試験 上記各容器と同組成の試験片を作成して、ＪＩＳ−Ｋ７
１１３に従って引張応力、弾性率を求めた。(D) Tensile strength test A test piece having the same composition as each of the above-mentioned containers was prepared, and JIS-K7 was used.
113, the tensile stress and elastic modulus were determined.

【００１９】これらの結果を表１から表２に示す。The results are shown in Tables 1 and 2.

【００２０】[0020]

【表１】 [Table 1]

【００２１】[0021]

【表２】 [Table 2]

【００２２】＜実施例２＞生分解性プラスチック（３Ｈ
Ｂ−３ＨＶ）とポリカプロラクトン（ＰＣＬ）（ユニオ
ン・カーバイド・ジャパン（株）製、商品名「トーン」
のＰ−７８７Ｅグレード）の混合体(50:50) を用いた。
充填剤として平均粒径 5.0μｍの炭酸カルシウムを10、
20、40、50％混合したマスターバッチを作成し、押出ブ
ロー成形機を用いてボトルを成形した。<Example 2> Biodegradable plastic (3H
B-3HV) and polycaprolactone (PCL) (manufactured by Union Carbide Japan Co., Ltd., trade name "Tone")
Of P-787E grade) (50:50).
Calcium carbonate with an average particle size of 5.0 μm as a filler 10,
A masterbatch containing 20%, 40% and 50% was prepared, and a bottle was molded using an extrusion blow molding machine.

【００２３】比較例として、充填剤を加えていないもの
を作成した。As a comparative example, one without a filler was prepared.

【００２４】これらの生分解性と引張強度、及び耐衝撃
性を以下の方法により試験した。These biodegradability, tensile strength, and impact resistance were tested by the following methods.

【００２５】（ａ）第１試験 上記各容器をカビの１種であるリゾプス−アリザス(Rhi
zopus arrhizus) より分離精製された市販のリパーゼ溶
液（アメリカ、シグマ社製、「Ｌ−4384」） (蛋白質濃
度50μｇ/ml)に２４時間浸漬し、ボトルの重量を測定し
て、重量減少により生分解性を求めた。(A) First test Each of the above-mentioned containers was treated with Rhizopus alizas (Rhi
zopus arrhizus) commercially available lipase solution (L-4384, manufactured by Sigma, USA) (protein concentration 50 μg / ml) separated and purified from zopus arrhizus) for 24 hours, and the weight of the bottle was measured. Degradability was sought.

【００２６】（ｂ）第２試験 自然環境での生分解性を確認するために、上記の各容器
を畑（茨城県古河市）に埋めて、６ケ月まで経時的に重
量を測定し重量減少により生分解性を求めた。(B) Second test In order to confirm the biodegradability in a natural environment, each of the above-mentioned containers was buried in a field (Furukawa City, Ibaraki Prefecture) and the weight was measured over 6 months to reduce the weight. The biodegradability was determined by.

【００２７】（ｃ）引張強度試験 上記各容器と同組成の試験片を作成して、ＪＩＳ−Ｋ７
１１３に従って引張応力、弾性率を求めた。(C) Tensile Strength Test A test piece having the same composition as each of the above-mentioned containers was prepared, and JIS-K7 was used.
113, the tensile stress and elastic modulus were determined.

【００２８】これらの結果を表３から表４に示す。The results are shown in Tables 3 to 4.

【００２９】[0029]

【表３】 [Table 3]

【００３０】[0030]

【表４】 [Table 4]

【００３１】[0031]

【発明の効果】本発明により、容器が肉厚であっても、
使用済みになり廃棄されたら速やかに分解が進み、かつ
構造的に強度を持たせることができる生分解性プラスチ
ック製容器を得ることができ、また、肉厚でも生分解性
プラスチックを使用することが可能となった。According to the present invention, even if the container is thick,
It is possible to obtain a biodegradable plastic container that can be promptly decomposed when used and discarded and has structural strength, and even if it is thick, it is possible to use biodegradable plastic. It has become possible.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｋ 105:16 Ｂ２９Ｌ 22:00 4Ｆ ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 5 Identification code Office reference number FI Technical display area B29K 105: 16 B29L 22:00 4F

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】生分解性プラスチックからなる容器におい
て、生分解性プラスチックに充填剤を混合したことを特
徴とする生分解性プラスチック製容器。1. A container made of biodegradable plastic, wherein a filler is mixed with the biodegradable plastic, and the container made of biodegradable plastic. 【請求項２】充填剤として、形状が粒状で平均粒径20.0
μｍ以下ものを重量比で10〜40％混合したことを特徴と
した、請求項１記載の生分解性プラスチック容器。2. The filler has a granular shape and an average particle diameter of 20.0.
The biodegradable plastic container according to claim 1, wherein 10 to 40% by weight of particles having a size of less than or equal to μm are mixed. 【請求項３】充填剤として、炭酸カルシウムまたは含水
珪酸マグネシウム（タルク）を用いることを特徴とし
た、請求項１記載の生分解性プラスチック製容器。3. The biodegradable plastic container according to claim 1, wherein calcium carbonate or hydrous magnesium silicate (talc) is used as the filler.
JP23310691A 1991-09-12 1991-09-12 Plastic container Expired - Lifetime JP3044857B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23310691A JP3044857B2 (en) 1991-09-12 1991-09-12 Plastic container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23310691A JP3044857B2 (en) 1991-09-12 1991-09-12 Plastic container

Publications (2)

Publication Number Publication Date
JPH0570696A true JPH0570696A (en) 1993-03-23
JP3044857B2 JP3044857B2 (en) 2000-05-22

Family

ID=16949871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23310691A Expired - Lifetime JP3044857B2 (en) 1991-09-12 1991-09-12 Plastic container

Country Status (1)

Country Link
JP (1) JP3044857B2 (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5340646A (en) * 1991-04-26 1994-08-23 Mitsui Toatsu Chemicals, Inc. Breathable, hydrolyzable porous film
GB2279353A (en) * 1993-06-15 1995-01-04 Uni Charm Corp Resin composition, porous film produced therefrom and process for producing same
DE4418634A1 (en) * 1993-09-14 1995-03-16 Fujitsu Ltd Made of biodegradable resin molded article
EP0683207A2 (en) 1994-05-19 1995-11-22 Mitsui Toatsu Chemicals, Incorporated L-lactic acid polymer composition, molded product and film
US5545485A (en) * 1993-09-14 1996-08-13 Fujitsu Limited Biodegradable resin molded article
EP0661346A3 (en) * 1993-12-24 1996-10-09 Mitsui Toatsu Chemicals Heat-resistant molded article of lactic acid-base polymer.
EP0776927A1 (en) * 1995-11-30 1997-06-04 Mitsui Toatsu Chemicals, Inc. Stretched film of lactic acid-based polymer
US5691424A (en) * 1995-05-25 1997-11-25 Mitsui Toatsu Chemicals, Inc. Heat-resistant molded article of lactic acid-base polymer
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JP2003013951A (en) * 2001-06-26 2003-01-15 Nsk Ltd Provisional shaft of slider for linear guide bearing unit
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JP2006342251A (en) * 2005-06-09 2006-12-21 Tokyo Printing Ink Mfg Co Ltd Biodegradable flame-retardant resin composition for protective sheet and molded article composed of the same
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JP2011099037A (en) * 2009-11-05 2011-05-19 Panasonic Electric Works Co Ltd Polylactic acid resin composition, method for producing polylactic acid resin composition, molded article, cellular phone table-top holder, internal chassis component of cellular phone, electronic equipment casing, and internal electronic equipment component
WO2013176734A1 (en) * 2012-05-21 2013-11-28 Tepha, Inc. Resorbable bioceramic compositions of poly-4-hydroxybutyrate and copolymers
JP2015535027A (en) * 2012-11-15 2015-12-07 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Biodegradable polyester blend
JP2017132967A (en) * 2016-01-29 2017-08-03 株式会社カネカ Biodegradation promoting method of poly(3-hydroxybutylate)-based resin, polyester resin composition by the method, and molded body
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US5691424A (en) * 1995-05-25 1997-11-25 Mitsui Toatsu Chemicals, Inc. Heat-resistant molded article of lactic acid-base polymer
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WO2000068737A1 (en) * 1999-05-10 2000-11-16 Fuji Photo Film Co., Ltd. Member used for photographic sensitive material
US6756422B1 (en) 1999-05-10 2004-06-29 Fuji Photo Film Co., Ltd. Member used for photographic sensitive material
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WO2001019909A1 (en) * 1999-09-13 2001-03-22 Basf Aktiengesellschaft Biodegradable, thermoplastic molding materials
EP1118636A1 (en) * 2000-01-20 2001-07-25 SOLVAY (Société Anonyme) Filled caprolactone based polymer compositions, process for their preparation and articles made thereform
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JP2003013951A (en) * 2001-06-26 2003-01-15 Nsk Ltd Provisional shaft of slider for linear guide bearing unit
US7034102B2 (en) 2003-04-25 2006-04-25 Asahi Denka Co., Ltd. Polylactic acid resin composition and molded article thereof, and process of producing the molded article
JP4640765B2 (en) * 2004-09-03 2011-03-02 株式会社Ａｄｅｋａ Polylactic acid-based resin composition, molded article and method for producing the same
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JP2006342251A (en) * 2005-06-09 2006-12-21 Tokyo Printing Ink Mfg Co Ltd Biodegradable flame-retardant resin composition for protective sheet and molded article composed of the same
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WO2013176734A1 (en) * 2012-05-21 2013-11-28 Tepha, Inc. Resorbable bioceramic compositions of poly-4-hydroxybutyrate and copolymers
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