RU2004124244A - Способ высушивания способных к биологическому разрушению полимеров - Google Patents

Способ высушивания способных к биологическому разрушению полимеров Download PDF

Info

Publication number
RU2004124244A
RU2004124244A RU2004124244/04A RU2004124244A RU2004124244A RU 2004124244 A RU2004124244 A RU 2004124244A RU 2004124244/04 A RU2004124244/04 A RU 2004124244/04A RU 2004124244 A RU2004124244 A RU 2004124244A RU 2004124244 A RU2004124244 A RU 2004124244A
Authority
RU
Russia
Prior art keywords
aforementioned
group
poly
acid
biomass
Prior art date
Application number
RU2004124244/04A
Other languages
English (en)
Other versions
RU2340632C2 (ru
Inventor
Сабэн БУАЛИ (CA)
Сабэн БУАЛИ
Жюли ГОДЭ (CA)
Жюли ГОДЭ
Марко БЛУЭН (CA)
Марко БЛУЭН
Лоран МАСАРО (CA)
Лоран МАСАРО
Патрик ЛАПУЭНТ (CA)
Патрик ЛАПУЭНТ
Original Assignee
Биоматера Инк. (Ca)
Биоматера Инк.
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 Биоматера Инк. (Ca), Биоматера Инк. filed Critical Биоматера Инк. (Ca)
Publication of RU2004124244A publication Critical patent/RU2004124244A/ru
Application granted granted Critical
Publication of RU2340632C2 publication Critical patent/RU2340632C2/ru

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B3/00—Preparation of cellulose esters of organic acids
    • C08B3/22—Post-esterification treatments, including purification
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
    • C08B30/06—Drying; Forming
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
    • C08B30/08—Concentration of starch suspensions
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B5/00—Preparation of cellulose esters of inorganic acids, e.g. phosphates
    • C08B5/02—Cellulose nitrate, i.e. nitrocellulose
    • C08B5/04—Post-esterification treatments, e.g. densification of powders, including purification
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/88—Post-polymerisation treatment
    • C08G63/90—Purification; Drying
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C08G63/08—Lactones or lactides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Electromagnetism (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing Of Solid Wastes (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Fertilizers (AREA)

Claims (12)

1. Способ высушивания или концентрирования без или с незначительным разрушением способного к биологическому разрушению полимера, содержащегося в растворе или биомассе, согласно которому вышеупомянутые раствор или биомассу подвергают воздействию СВЧ-излучения на период времени, достаточный для уменьшения концентрации растворителя в вышеупомянутых растворе или биомассе соответственно на 0,0001-100%.
2. Способ по п.1, где вышеупомянутый полимер является синтетическим или природным полимером.
3. Способ по п.1, где вышеупомянутый полимер выбирается из группы, состоящей из полиэфиров, полиспиртов, полисахаридов, поликислот, или является их смесью, или их сополимером.
4. Способ по п.3, где вышеупомянутый полиэфир выбирается из группы, состоящей из полигидроксиалканоата, поликапролактона, полимерной молочной кислоты, полигликолевой кислоты, поли-(лакто-гликолевой) кислоты, полимерной янтарной кислоты, или их смеси, или их сополимеров.
5. Способ по п.3, где вышеупомянутый полиспирт выбирается из группы, состоящей из поливинилового спирта, целлюлозы или их производных.
6. Способ по п.1, где вышеупомянутое СВЧ-излучение находится между 915 и 2450 МГц.
7. Способ по п.1, где вышеупомянутое СВЧ-излучение имеет мощность от 100 до 1500 Вт.
8. Способ по п.1, где вышеупомянутое высушивание или концентрирование осуществляются с менее чем 5% разложения вышеупомянутого биополимера.
9. Способ по п.1, где вышеупомянутый растворитель - это вода или полярный органический растворитель.
10. Способ по п.4, где вышеупомянутый полигидроксиалканоат выбирается из группы, состоящей из поли-3-гидроксибутирата, поли-3-гидроксивалерианата, поли-3-гидроксипентаноата, полу-3-гидроксигексаноата, полу-3-гидроксигептаноата, полу-3-гидроксиоктаноата, полу-3-гидроксинонаноата, полу-3-гидроксидеканоата, полу-3-гидроксидодеканоата, полу-4-гидроксибутирата и ПГА со средней длиной цепи, или их смеси, или их сополимера.
11. Способ по п.9, где вышеупомянутый полярный органический растворитель выбирается из группы, состоящей из спирта, амина, амида, галогенпроизводного, цианида, альдегида, кислоты, кетона, сложного эфира, тиола и сульфоксида.
12. Способ по п.1, где вышеупомянутое разрушение составляет от 0 до 25%.
RU2004124244/04A 2002-01-22 2003-01-22 Способ высушивания способных к биологическому разрушению полимеров RU2340632C2 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34943002P 2002-01-22 2002-01-22
US60/349,430 2002-01-22

Publications (2)

Publication Number Publication Date
RU2004124244A true RU2004124244A (ru) 2005-05-27
RU2340632C2 RU2340632C2 (ru) 2008-12-10

Family

ID=27613278

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2004124244/04A RU2340632C2 (ru) 2002-01-22 2003-01-22 Способ высушивания способных к биологическому разрушению полимеров

Country Status (11)

Country Link
US (1) US20050223587A1 (ru)
EP (1) EP1468102B1 (ru)
JP (1) JP4323957B2 (ru)
CN (1) CN100406567C (ru)
AT (1) ATE432357T1 (ru)
AU (1) AU2003201573B2 (ru)
BR (1) BRPI0307077A2 (ru)
CA (1) CA2473521C (ru)
DE (1) DE60327737D1 (ru)
RU (1) RU2340632C2 (ru)
WO (1) WO2003062438A1 (ru)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009018469A1 (en) * 2007-07-31 2009-02-05 Hoffman Richard B System and method of preparing pre-treated biorefinery feedstock from raw and recycled waste cellulosic biomass
CN102816811B (zh) * 2011-06-10 2014-11-05 中国科学院过程工程研究所 微波干法或半干法预处理生物质的方法
US8524855B1 (en) * 2011-10-12 2013-09-03 The United States Of America, As Represented By The Secretary Of Agriculture Production of stable polyesters by microwave heating of carboxylic acid:polyol blends
RU2467029C1 (ru) * 2011-10-25 2012-11-20 Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации Способ получения биоразлагаемых полиэфиров
RU2522564C2 (ru) * 2012-10-30 2014-07-20 Общество с ограниченной ответственностью "Техальцел" (ООО "Техальцел") Способ изготовления дисперсного природного полимера
CN106188315A (zh) * 2016-07-13 2016-12-07 段振华 一种马蹄淀粉微波干燥的方法
CN111163644A (zh) * 2017-09-28 2020-05-15 罗地亚经营管理公司 用于干燥多糖的方法
JP7080437B2 (ja) * 2019-05-29 2022-06-06 兼松エンジニアリング株式会社 連続抽出・乾燥装置
CN114294905B (zh) * 2021-11-19 2023-04-25 中粮生物科技股份有限公司 利用红外或微波干燥聚羟基脂肪酸酯的方法

Family Cites Families (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428872A (en) * 1941-09-30 1947-10-14 Standard Oil Co Process and apparatus for contacting solids and gases
US4055001A (en) * 1971-11-18 1977-10-25 Exxon Research & Engineering Co. Microwave drying process for synthetic polymers
US3834038A (en) * 1972-09-14 1974-09-10 Gammaflux Inc Method for drying moldable resins
GB8412053D0 (en) * 1984-05-11 1984-06-20 Shell Int Research Biopolymer formulations
JPH02283772A (ja) * 1989-04-25 1990-11-21 Kanzaki Paper Mfg Co Ltd フレキソ型カプセルインキ組成物
US4967486A (en) * 1989-06-19 1990-11-06 Glatt Gmbh Microwave assisted fluidized bed processor
US4971869A (en) * 1989-06-19 1990-11-20 Polaroid Corporation Color encoding photographic film
US6495656B1 (en) * 1990-11-30 2002-12-17 Eastman Chemical Company Copolyesters and fibrous materials formed therefrom
US5142023A (en) * 1992-01-24 1992-08-25 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5480575A (en) * 1992-12-03 1996-01-02 Lever Brothers, Division Of Conopco, Inc. Adjuncts dissolved in molecular solid solutions
US20030198617A1 (en) * 1993-03-04 2003-10-23 Lawrence Green Pharmaceutical tryptophan containing dipeptide compositions and methods of use thereof
DE4318471A1 (de) * 1993-06-03 1994-12-08 Thomae Gmbh Dr K Eintopf-Mischer-Granulator-Trockner
US5821299A (en) * 1996-02-16 1998-10-13 The Proctor & Gamble Company Solvent extraction of polyhydroxy-alkanoates from biomass facilitated by the use of marginal nonsolvent
CA2270154A1 (en) * 1996-10-25 1998-04-30 The Government Of The United States Of America As Represented By The Sec Retary, Department Of Health And Human Services Methods and compositions for inhibiting inflammation and angiogenesis comprising a mammalian cd97 alpha subunit
US20040013664A1 (en) * 1997-01-14 2004-01-22 Gentz Reiner L. Tumor necrosis factor receptors 6 alpha & 6 beta
US6090800A (en) * 1997-05-06 2000-07-18 Imarx Pharmaceutical Corp. Lipid soluble steroid prodrugs
US6120751A (en) * 1997-03-21 2000-09-19 Imarx Pharmaceutical Corp. Charged lipids and uses for the same
DE19712708A1 (de) * 1997-03-26 1998-10-01 Thueringisches Inst Textil Getrocknete kontaminationsarme Hydrokolloide und Hydrogele
US20020177188A1 (en) * 1998-05-15 2002-11-28 Genentech, Inc. IL-17 homologous polypeptides and therapeutic uses thereof
EP0973930B1 (en) * 1997-04-15 2007-06-13 Metabolix, Inc. High temperature pha extraction using pha-poor solvents
US6548047B1 (en) * 1997-09-15 2003-04-15 Bristol-Myers Squibb Medical Imaging, Inc. Thermal preactivation of gaseous precursor filled compositions
US6123923A (en) * 1997-12-18 2000-09-26 Imarx Pharmaceutical Corp. Optoacoustic contrast agents and methods for their use
CA2316769A1 (en) * 1997-12-23 1999-07-01 Lawrence E. Samelson The protein tyrosine kinase substrate lat and its use in the identification of (ant)agonists of the kinase
WO1999046279A2 (en) * 1998-03-11 1999-09-16 Endorecherche, Inc. INHIBITORS OF TYPE 5 AND TYPE 3 17β-HYDROXYSTEROID DEHYDROGENASE AND METHODS FOR THEIR USE
US6180355B1 (en) * 1998-05-07 2001-01-30 University Of Maryland, Baltimore Method for diagnosing and treating chronic pelvic pain syndrome
US20020182673A1 (en) * 1998-05-15 2002-12-05 Genentech, Inc. IL-17 homologous polypedies and therapeutic uses thereof
US7771719B1 (en) * 2000-01-11 2010-08-10 Genentech, Inc. Pharmaceutical compositions, kits, and therapeutic uses of antagonist antibodies to IL-17E
US6175037B1 (en) * 1998-10-09 2001-01-16 Ucb, S.A. Process for the preparation of (meth)acrylate esters and polyester (meth)acrylates using microwave energy as a heating source
US6092301A (en) * 1998-11-13 2000-07-25 Komanowsky; Michael Microwave drying of hides under vacuum in tanning equipment
DE69923795T2 (de) * 1998-12-15 2006-03-16 Takeda Pharmaceutical Co. Ltd. Verfahren zur Herstellung biologisch-abbaubarer Polyester
CN1079402C (zh) * 1999-01-04 2002-02-20 白银有色金属公司 一种高分子聚合物胶体的干燥方法
US6960439B2 (en) * 1999-06-28 2005-11-01 Source Precision Medicine, Inc. Identification, monitoring and treatment of disease and characterization of biological condition using gene expression profiles
DE60015568D1 (de) * 1999-08-13 2004-12-09 Univ Maryland Biotech Inst Zusammensetzungen zur behandlung von viralen infektionen und verfahren dafür
US20090035261A1 (en) * 2000-03-21 2009-02-05 Jian Chen IL-17 homologous polypeptides and therapeutic uses thereof
US20030203451A1 (en) * 2000-08-24 2003-10-30 Genentech, Inc. IL-17 homologous polypeptides and therapeutic uses thereof
JP2001340095A (ja) * 2000-03-28 2001-12-11 Canon Inc 生体細胞からのポリヒドロキシアルカン酸の分離方法
US20020106348A1 (en) * 2000-07-12 2002-08-08 Peng Huang Cancer therapeutics involving the administration of 2-methoxyestradiol and an agent that increases intracellular superoxide anion
US6818203B2 (en) * 2000-08-11 2004-11-16 Schering Aktiengesellschaft Use of perfluoroalkyl-containing metal complexes as contrast media in MR-imaging for visualization of plaque, tumors and necroses
MXPA03004832A (es) * 2000-12-01 2004-05-04 Guilford Pharm Inc Compuestos y sus usos.
WO2002070659A2 (en) * 2001-03-02 2002-09-12 Regents Of The University Of Minnesota Production of polyhydroxyalkanoates
KR20040064275A (ko) * 2001-11-09 2004-07-16 소스 프리시전 메디슨, 인코포레이티드 유전자 발현 프로파일을 이용한 질병의 동정, 모니터링,치료 및 생물학적 상태의 확인
US7794994B2 (en) * 2001-11-09 2010-09-14 Kemeta, Llc Enzyme-based system and sensor for measuring acetone
KR20030061675A (ko) * 2002-01-11 2003-07-22 뉴 아이스 리미티드 생분해성 또는 부패성 컨테이너
US6703216B2 (en) * 2002-03-14 2004-03-09 The Regents Of The University Of California Methods, compositions and apparatuses for detection of gamma-hydroxybutyric acid (GHB)
CA2495797C (en) * 2002-08-20 2013-12-17 B.R.A.I.N. Biotechnology Research And Information Network Ag Isolation and cloning of dna from uncultivated organisms
EP1603943A2 (en) * 2003-03-03 2005-12-14 Board of Regents, The University of Texas System Methods and compositions involving mda-7
US20050026890A1 (en) * 2003-07-31 2005-02-03 Robinson Cynthia B. Combination of dehydroepiandrosterone or dehydroepiandrosterone-sulfate with an antihistamine for treatment of asthma or chronic obstructive pulmonary disease
US20050239998A1 (en) * 2004-03-04 2005-10-27 Koichi Kinoshita Method for producing polyhydroxyalkanoate
US7510813B2 (en) * 2004-06-24 2009-03-31 Canon Kabushiki Kaisha Resin-coated carrier for electrophotographic developer
CN101040052A (zh) * 2004-09-10 2007-09-19 诺维信北美公司 防止、去除、减少或破坏生物膜的方法
SI1879573T1 (sl) * 2005-05-10 2013-04-30 Incyte Corporation Experimental Station Modulatorji indolamin 2,3-dioksigenaze in postopki za uporabo le-te
EP1902014A2 (en) * 2005-07-11 2008-03-26 Wyeth Glutamate aggrecanase inhibitors
ES2540561T3 (es) * 2005-12-20 2015-07-10 Incyte Corporation N-hidroxiamidinoheterociclos como moduladores de indolamina 2,3-dioxigenasa
US20080004271A1 (en) * 2006-01-17 2008-01-03 Mckenna Jeffrey M Inhibitors of TNFalpha, PDE4 and B-RAF, compositions thereof and methods of use therewith
JP2009524677A (ja) * 2006-01-25 2009-07-02 シンタ ファーマシューティカルズ コーポレーション 炎症および免疫関連使用用のチアゾールおよびチアジアゾール化合物
CA2636242A1 (en) * 2006-01-30 2008-05-29 Array Biopharma, Inc. Heterobicyclic thiophene compounds and methods of use
JP2009529047A (ja) * 2006-03-07 2009-08-13 アレイ バイオファーマ、インコーポレイテッド ヘテロ二環系ピラゾール化合物およびその使用
US20080124372A1 (en) * 2006-06-06 2008-05-29 Hossainy Syed F A Morphology profiles for control of agent release rates from polymer matrices
CL2007002650A1 (es) * 2006-09-19 2008-02-08 Incyte Corp Compuestos derivados de heterociclo n-hidroxiamino; composicion farmaceutica, util para tratar cancer, infecciones virales y desordenes neurodegenerativos entre otras.
JP5319532B2 (ja) * 2006-09-19 2013-10-16 インサイト・コーポレイション インドールアミン２，３−ジオキシゲナーゼのモジュレーターとしてのｎ−ヒドロキシアミジノヘテロサイクル
US8779154B2 (en) * 2006-09-26 2014-07-15 Qinglin Che Fused ring compounds for inflammation and immune-related uses

Also Published As

Publication number Publication date
ATE432357T1 (de) 2009-06-15
AU2003201573B2 (en) 2009-02-26
EP1468102B1 (en) 2009-05-27
RU2340632C2 (ru) 2008-12-10
CA2473521A1 (en) 2003-07-31
JP2005514954A (ja) 2005-05-26
CN1643155A (zh) 2005-07-20
CN100406567C (zh) 2008-07-30
EP1468102A1 (en) 2004-10-20
BRPI0307077A2 (pt) 2017-06-20
US20050223587A1 (en) 2005-10-13
CA2473521C (en) 2014-04-15
JP4323957B2 (ja) 2009-09-02
DE60327737D1 (de) 2009-07-09
WO2003062438A1 (en) 2003-07-31

Similar Documents

Publication Publication Date Title
Gioia et al. End of life of biodegradable plastics: composting versus Re/upcycling
RU2004124244A (ru) Способ высушивания способных к биологическому разрушению полимеров
Albertsson et al. Aspects of biodeterioration of inert and degradable polymers
FI89505C (fi) Foerfarande foer framstaellning av polyestrar
ATE241650T1 (de) Verfahren zur herstellung von synthetischen polymerisaten mit sehr niedrigem restmonomergehalt, danach hergestellte produkte und deren verwendung
US6949254B2 (en) Bio-decomposable polymer composition showing good thermal decomposition
Nair et al. Characterization of polyhydroxyalkanoates produced by Bacillus subtilis isolated from soil samples
Sastry et al. Accelerated and environmental weathering studies on polyethylene–starch blend films
Kim et al. Synthesis and properties of biodegradable chitin‐graft‐poly (L‐lactide) copolymers
Muniyasamy et al. Biodegradability of biobased polymeric materials in natural environments
DE59810762D1 (de) Verfahren zur herstellung von wasserlöslichen bzw. wasserquellbaren polymerisaten mit sehr niedrigem restmonomergehalt, danach hergestellte produkte und deren verwendung
ATE289205T1 (de) Verfahren zur herstellung biologisch-abbaubarer polyester
AU2003201573A1 (en) Method of drying biodegradable polymers
Karlsson et al. Techniques and mechanisms of polymer degradation
DE59901240D1 (de) Verfahren zur Herstellung von biologisch abbaubaren Polymeren mit wiederkehrenden Succinyleinheiten
JP2008127406A (ja) 生分解性重合体の合成方法
Pandey et al. Biodegradation of packaging materials: composting of polyolefins
Negrin et al. Effect of gamma irradiation on fully aliphatic poly (propylene/Neopentyl Cyclohexanedicarboxylate) random copolymers
JP3620304B2 (ja) 乳酸系ポリマーの共重合体およびその製造方法
KR940014439A (ko) 생분해성 환상에스테르계 고분자 그라프트 리그노셀루로오즈 유도체 및 그 제조방법
Karlsson et al. Techniques and
JP2002194221A (ja) 生分解性プラスチック
TWI567103B (zh) 用於改質生物可分解聚合物之方法
Vijayvargiya Development of Nickel Based & Performance E
JP2003277593A (ja) 高生分解性を有する脂肪族ポリエステル樹脂組成物

Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20130123