BRPI0517581A - hidrogéis de polìmero superabsorvente biodegradável e método de sua preparação - Google Patents

hidrogéis de polìmero superabsorvente biodegradável e método de sua preparação

Info

Publication number
BRPI0517581A
BRPI0517581A BRPI0517581-0A BRPI0517581A BRPI0517581A BR PI0517581 A BRPI0517581 A BR PI0517581A BR PI0517581 A BRPI0517581 A BR PI0517581A BR PI0517581 A BRPI0517581 A BR PI0517581A
Authority
BR
Brazil
Prior art keywords
preparation
superabsorbent polymer
polymer hydrogels
biodegradable superabsorbent
gel
Prior art date
Application number
BRPI0517581-0A
Other languages
English (en)
Inventor
Luigi Ambrosio
Luigi Nicolais
Alessandro Sannino
Original Assignee
Luigi Ambrosio
Luigi Nicolais
Alessandro Sannino
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 Luigi Ambrosio, Luigi Nicolais, Alessandro Sannino filed Critical Luigi Ambrosio
Publication of BRPI0517581A publication Critical patent/BRPI0517581A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/246—Intercrosslinking of at least two polymers
    • 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
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/075—Macromolecular gels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/26—Cellulose ethers
    • C08L1/28—Alkyl ethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/08—Cellulose derivatives
    • C08J2301/26—Cellulose ethers
    • C08J2301/28—Alkyl ethers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Preparation (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Materials For Medical Uses (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Jellies, Jams, And Syrups (AREA)

Abstract

Hidrogéis de polimero superabsorvente biodeg radável e método de sua preparação. A presente invenção refere-se a método de preparação de hidrogel de polímero superabsorvente, que compreende as etapas de (i) retícula de solução aquosa geral a 3% de sal de sódio de carboximetilcelulose e hidroxietilcelulose com 5% de carbodjimida, na presença de catalisador ácido; (ii) lavagem do gel obtido pelo menos uma vez por meio de inchaço em solvente orgânico polar; e (iii) secagem do gel por meio de inversão de fases em não solvente para celulose. A presente invenção refere-se ainda a hidrogéis superabsorventes que podem ser obtidos por meio do mencionado método e seus usos.
BRPI0517581-0A 2004-12-29 2005-12-28 hidrogéis de polìmero superabsorvente biodegradável e método de sua preparação BRPI0517581A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000918A ITTO20040918A1 (it) 2004-12-29 2004-12-29 Idrogel polimerici superassorbenti biodegradabili e procedimento per la loro preparazione
PCT/IB2005/054412 WO2006070337A2 (en) 2004-12-29 2005-12-28 Biodegradable, super absorbent polymer hydrogels and a method for their preparation

Publications (1)

Publication Number Publication Date
BRPI0517581A true BRPI0517581A (pt) 2008-10-14

Family

ID=36615302

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0517581-0A BRPI0517581A (pt) 2004-12-29 2005-12-28 hidrogéis de polìmero superabsorvente biodegradável e método de sua preparação

Country Status (12)

Country Link
US (1) US20080227944A1 (pt)
EP (1) EP1836227B1 (pt)
JP (1) JP2008533215A (pt)
CN (1) CN101128488A (pt)
AT (1) ATE468357T1 (pt)
AU (1) AU2005320976A1 (pt)
BR (1) BRPI0517581A (pt)
CA (1) CA2591801A1 (pt)
DE (1) DE602005021400D1 (pt)
IT (1) ITTO20040918A1 (pt)
RU (1) RU2007128946A (pt)
WO (1) WO2006070337A2 (pt)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2527940C (en) 2003-06-03 2016-03-22 Richard L. Veech Nutritional supplements and therapeutic compositions comprising (r)-3-hydroxybutyrate derivatives
US20070287630A1 (en) * 2006-06-12 2007-12-13 Driwater, Inc. Moisturizing agent with nutrients
JP5165217B2 (ja) * 2006-07-07 2013-03-21 生化学工業株式会社 ゲル状又はフィルム状組成物並びにその製造方法及び用途
US8633254B2 (en) * 2006-09-15 2014-01-21 Japan Atomic Energy Agency Preparation of gels derived from carboxymethyl cellulose alkali metal salt
JP4288618B2 (ja) * 2006-09-15 2009-07-01 独立行政法人 日本原子力研究開発機構 カルボキシメチルセルロースゲルの製造方法
WO2009022358A1 (en) * 2007-08-10 2009-02-19 Luigi Ambrosio Superabsorbent polymer hydro gels and a method of preparing thereof
AU2013204055C1 (en) * 2007-08-10 2016-12-15 Gelesis Llc Polymer hydrogels and methods of preparation thereof
AU2016219713B2 (en) * 2007-08-10 2018-03-29 Gelesis Llc Polymer hydrogels and methods of preparation thereof
US20100209708A1 (en) * 2007-09-17 2010-08-19 Basf Se Crosslinked cellulose beads
CN101177488B (zh) * 2007-10-26 2010-05-19 广东工业大学 一种快速溶胀的水凝胶制备
US9211275B2 (en) 2008-01-04 2015-12-15 Isis Innovation Ltd. Ketone bodies and ketone body esters as blood lipid lowering agents
US8642654B2 (en) 2009-04-16 2014-02-04 Isis Innovation Limited Hydroxybutyrate ester and medical use thereof
ES2626116T3 (es) * 2008-11-18 2017-07-24 Gelesis Llc Métodos y composiciones para el control del peso y para mejorar el control glucémico
CN101845123B (zh) * 2009-03-25 2011-12-21 青岛生物能源与过程研究所 一种生物基无机复合型吸水材料的制备方法
IT1393778B1 (it) 2009-04-06 2012-05-08 Sannino Procedimento per il trattamento di rifiuti.
CN101693743B (zh) * 2009-10-28 2012-07-04 中国林业科学研究院林产化学工业研究所 含双键侧基纤维素衍生物的制备方法
GB201002983D0 (en) * 2010-02-22 2010-04-07 Tdeltas Ltd Nutritinal composition
CN101864036B (zh) * 2010-06-03 2011-07-20 济南大学 利用植物秸秆合成高吸水树脂的方法
EP2605736B1 (en) 2010-08-20 2017-04-05 SNS Nano Fiber Technology, LLC Textile composite material comprising nanofiber nonwoven
CN102153665B (zh) * 2011-03-11 2012-06-27 陕西农产品加工技术研究院 一种以苹果渣为原料制备高吸水凝胶的方法
WO2012170682A1 (en) * 2011-06-07 2012-12-13 One S.R.L. Method for producing hydrogels
CN102276854B (zh) * 2011-07-08 2013-01-02 西安交通大学 一种高强度天然高分子水凝胶的制备方法
CN102443180A (zh) * 2011-09-15 2012-05-09 复旦大学 一种制备纤维素复合气凝胶的方法
WO2014071389A1 (en) 2012-11-05 2014-05-08 Veech Richard L Ketone bodies to protect tissues from damage by ionizing radiation
GB201304467D0 (en) 2013-03-12 2013-04-24 Tdeltas Ltd Compound for use in protecting skin
US11566268B2 (en) 2013-03-14 2023-01-31 Government Of The Usa, As Represented By The Secretary, Department Of Health And Human Services Process for producing (R)-3-hydroxybutyl (R)-3-hydroxybutyrate
CN106470689A (zh) 2014-06-20 2017-03-01 吉莱斯公司 用于治疗超重或肥胖症的方法
CN104448396B (zh) * 2014-11-28 2017-06-16 武汉大学 一种基于化学和物理交联的双网络纤维素凝胶系材料
KR20170109587A (ko) * 2015-01-29 2017-09-29 젤레시스 엘엘씨 높은 탄성 계수 및 흡수율로 결합되는 하이드로겔을 제조하는 방법
EP3144340A1 (en) 2015-09-17 2017-03-22 Solvay Acetow GmbH Polymer gels, method of preparation and uses thereof
KR102009909B1 (ko) * 2015-10-07 2019-08-21 주식회사 엘지화학 고흡수성 수지 단일 입자의 파쇄강도 측정 방법
CA3022090A1 (en) 2016-04-25 2017-11-02 Gelesis, Llc. Method for treating constipation
CN106963673B (zh) * 2017-02-16 2021-02-23 玉林祺钟商贸有限公司 一种睫毛液及其制备方法
RU2721501C1 (ru) 2017-07-28 2020-05-19 Кимберли-Кларк Ворлдвайд, Инк. Гигиеническое впитывающее изделие для женщин, содержащее нанопористые сверхвпитывающие частицы
AU2018307477B2 (en) * 2017-07-28 2022-12-22 Kimberly-Clark Worldwide, Inc. Nanoporous superabsorbent particles
CN107417934B (zh) * 2017-08-09 2020-01-07 武汉大学 一种具有力致光学异性结构的高强、高韧纤维素水凝胶及其制备方法
IT201700105979A1 (it) * 2017-09-21 2019-03-21 Giacomo Guerrini Biodegradable polymer-clay composite - Composito polimerico-argilloso biodegradabile
CN112135645B (zh) 2018-06-27 2022-04-12 金伯利-克拉克环球有限公司 纳米多孔超吸收颗粒
CA3060477A1 (en) * 2018-11-09 2020-05-09 Windfield Solutions, Llc Hydrogels as rheology modifiers and methods of making the same
CN113017989A (zh) * 2021-02-26 2021-06-25 福建省明辉机械制造有限公司 一种超薄透气卫生巾制备方法
RU2766223C1 (ru) * 2021-03-10 2022-02-10 Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук (ИХ ДВО РАН) Способ получения биополимерных пленок
CN113248743B (zh) * 2021-06-18 2023-09-12 嘉兴映生生物有限公司 一种生物相容的可降解的三维纤维素凝胶及其制备方法和应用
KR102651835B1 (ko) * 2022-04-04 2024-03-29 경북대학교 산학협력단 셀룰로오스 기반 블렌딩 하이드로겔의 제조 방법, 이로부터 제조된 셀룰로오스 기반 블렌딩 하이드로겔 및 이를 포함하는 흡수성 물품

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589364A (en) * 1968-03-14 1971-06-29 Buckeye Cellulose Corp Bibulous cellulosic fibers
US3889678A (en) * 1973-12-07 1975-06-17 Personal Products Co Cellulose graft copolymer containing non-ionic and ionic polymer moieties as absorbent media in absorbent dressings
US4028290A (en) * 1975-10-23 1977-06-07 Hercules Incorporated Highly absorbent modified polysaccharides
US4404371A (en) * 1981-01-14 1983-09-13 Battelle Memorial Institute Carboxymethylcellulose with carbonate bridges and preparation thereof
US4525465A (en) * 1983-10-07 1985-06-25 Nippon Kayaku Kabushiki Kaisha Water-insoluble biospecific absorbent containing argininal derivative
US6610669B1 (en) * 1987-09-18 2003-08-26 Genzyme Corporation Water insoluble derivatives of polyanionic polysaccharides
US5017229A (en) * 1990-06-25 1991-05-21 Genzyme Corporation Water insoluble derivatives of hyaluronic acid
US6174999B1 (en) * 1987-09-18 2001-01-16 Genzyme Corporation Water insoluble derivatives of polyanionic polysaccharides
DE3801633A1 (de) * 1988-01-21 1989-07-27 Starchem Gmbh Verfahren zur herstellung von wasserabsorbierenden und wasserquellbaren polysaccharid-pfropfpolymeren
CA2042381C (en) * 1989-01-13 1997-05-06 Foner Paul Curtis Polysaccharide resolving gels and gel system for stacking electrophoresis
US5356883A (en) * 1989-08-01 1994-10-18 Research Foundation Of State University Of N.Y. Water-insoluble derivatives of hyaluronic acid and their methods of preparation and use
US5298584A (en) * 1990-12-14 1994-03-29 The United States Of America As Represented By The Secretary Of Agriculture Anionically dyeable smooth-dry crosslinked cellulosic material created by treatment of cellulose with reactive swelling agents and nitrogen based compounds
US5514379A (en) * 1992-08-07 1996-05-07 The General Hospital Corporation Hydrogel compositions and methods of use
US5304620A (en) * 1992-12-21 1994-04-19 Halliburton Company Method of crosslinking cellulose and guar derivatives for treating subterranean formations
AU7668894A (en) * 1993-08-13 1995-03-14 Vitaphore Corporation Hydrogel-based microsphere drug delivery systems
JP3404557B2 (ja) * 1993-09-30 2003-05-12 グンゼ株式会社 架橋ヒアルロン酸及びこれらの複合材料
US5919570A (en) * 1995-02-01 1999-07-06 Schneider Inc. Slippery, tenaciously adhering hydrogel coatings containing a polyurethane-urea polymer hydrogel commingled with a poly(N-vinylpyrrolidone) polymer hydrogel, coated polymer and metal substrate materials, and coated medical devices
DE19543368C2 (de) * 1995-11-21 1998-11-26 Stockhausen Chem Fab Gmbh Wasserabsorbierende Polymere mit verbesserten Eigenschaften, Verfahren zu deren Herstellung und deren Verwendung
DK0910412T3 (da) * 1996-07-01 2003-08-11 Univ Utrecht Hydrolyserbare hydrogeler til kontrolleret frigørelse
ZA978537B (en) * 1996-09-23 1998-05-12 Focal Inc Polymerizable biodegradable polymers including carbonate or dioxanone linkages.
GB2318577B (en) * 1996-10-28 2000-02-02 Johnson & Johnson Medical Solvent dried polysaccharide sponges
AU3561697A (en) * 1997-06-24 1999-01-04 Sca Molnlycke Ab Absorbent polymer material based on renewable starting materials
EP1134232A1 (en) * 2000-03-16 2001-09-19 SCA Hygiene Products AB Polysaccharide-based superabsorbent film
AU2001275400A1 (en) * 2000-06-09 2001-12-24 Genzyme Corporation Low molecular weight polymeric compositions
US6720389B2 (en) * 2000-09-20 2004-04-13 Nippon Shokubai Co., Ltd. Water-absorbent resin and production process therefor
CA2351253A1 (en) * 2000-11-10 2002-05-10 Groupe Lysac Inc./Lysac Group Inc. Crosslinked polysaccharide, obtained by crosslinking with substituted polyethylene glycol, as superabsorbent
JP4074905B2 (ja) * 2001-02-28 2008-04-16 大日本インキ化学工業株式会社 吸水性材料、その製造方法および吸水性物品
US20020172712A1 (en) * 2001-03-19 2002-11-21 Alan Drizen Antiemetic, anti-motion sustained release drug delivery system
CA2445086C (en) * 2001-05-01 2008-04-08 A.V. Topchiev Institute Of Petrochemical Synthesis Hydrogel compositions
JP2005517802A (ja) * 2002-02-15 2005-06-16 ゼットエムエス エルエルシー 生物医学用途のための重合方法および材料
JP4624678B2 (ja) * 2002-02-21 2011-02-02 パイオニア・サージカル・オーソバイオロジックス，インコーポレイテッド 架橋生物活性ヒドロゲルマトリックス
US7030208B2 (en) * 2002-04-11 2006-04-18 Carbomer, Inc. Biocompatible materials and probes
US20030218130A1 (en) * 2002-05-02 2003-11-27 Ciphergen Biosystems, Inc. Biochips with surfaces coated with polysaccharide-based hydrogels
US6800712B2 (en) * 2002-10-07 2004-10-05 Steven William Doane Starch graft copolymers and method of making and using starch graft copolymers for agriculture
JP4459543B2 (ja) * 2003-03-17 2010-04-28 株式会社メドジェル 徐放性ハイドロゲル製剤
FR2861734B1 (fr) * 2003-04-10 2006-04-14 Corneal Ind Reticulation de polysaccharides de faible et forte masse moleculaire; preparation d'hydrogels monophasiques injectables; polysaccharides et hydrogels obtenus
DE10337012A1 (de) * 2003-08-12 2005-03-10 Wolff Cellulosics Gmbh & Co Kg Celluloseetherzusammensetzung für die Extrusion mineralischer Formkörper sowie ein Verfahren zur Extrusion mineralischer Formkörper unter Verwendung dieser Celluloseetherzusammensetzung
US7425595B2 (en) * 2003-12-15 2008-09-16 Absorbent Technologies, Inc. Superabsorbent polymer products including a beneficial additive and methods of making and application
JP4959557B2 (ja) * 2004-07-09 2012-06-27 フェロサン メディカル デバイシーズ エイ／エス ヒアルロン酸含有止血合成剤
DE102005034420A1 (de) * 2004-12-23 2006-07-06 Ossacur Ag Gelartiges Material zur Füllung von Knochen- und/oder Knorpeldefekten

Also Published As

Publication number Publication date
WO2006070337A9 (en) 2007-06-21
EP1836227A2 (en) 2007-09-26
AU2005320976A1 (en) 2006-07-06
DE602005021400D1 (de) 2010-07-01
JP2008533215A (ja) 2008-08-21
US20080227944A1 (en) 2008-09-18
EP1836227B1 (en) 2010-05-19
RU2007128946A (ru) 2009-02-10
WO2006070337A3 (en) 2007-03-01
CA2591801A1 (en) 2006-07-06
ATE468357T1 (de) 2010-06-15
ITTO20040918A1 (it) 2005-03-29
CN101128488A (zh) 2008-02-20
WO2006070337A2 (en) 2006-07-06

Similar Documents

Publication Publication Date Title
BRPI0517581A (pt) hidrogéis de polìmero superabsorvente biodegradável e método de sua preparação
CN105732999B (zh) 高强度交联水凝胶和弹性体及其制备方法
CN104140630B (zh) 一种壳聚糖基双网络水凝胶及其制备方法
CY1115978T1 (el) Υδροπηκτες πολυμερων και ιατρικη χρηση αυτων
Wang et al. Porous photothermal antibacterial antioxidant dual–crosslinked cryogel based on hyaluronic acid/polydopamine for non-compressible hemostasis and infectious wound repair
Liu et al. Formation of uniform multi-stimuli-responsive and multiblock hydrogels from dialdehyde cellulose
WO2006056204A8 (en) Method of cross-linking hyaluronic acid with divinylsulfone
BRPI0507294B8 (pt) processo de fabricação de um gel reticulado biocompatível, gel, e, utilização do gel
ATE476450T1 (de) Vernetzte polysaccharidzusammensetzung
CN106947020A (zh) 一种高强度壳聚糖基水凝胶的制备方法
CN104861179B (zh) 一种羽毛角蛋白‑海藻酸钠复合高分子双敏感水凝胶的制备及作为药物载体的应用
CN103113600B (zh) 一种光响应可逆壳聚糖水凝胶及其制备方法
DE602007004212D1 (de) Hydrogele von polysaccharidmischungen für das gewebe-engineering und als wirkstoffträger
CN105713106A (zh) 一种海藻酸钠双交联水凝胶及其制备方法与应用
CN104027833A (zh) 一种壳聚糖水凝胶敷料的制备方法
CN106474523A (zh) 基于羧甲基壳聚糖的聚电解质海绵创伤敷料的制备方法
CN103638562A (zh) 软骨组织工程支架材料及其制备方法
CN105920652A (zh) 一种共价接枝抗菌多肽的抗菌凝胶及其制备方法
CN114031807B (zh) 一种用于组织创伤愈合修复的纤维素壳聚糖单宁酸铜复合凝胶海绵及其制备方法
CN105646894B (zh) 一种基于聚酰胺-胺型树枝状分子的水凝胶的制备方法
CN104761734B (zh) 一种氨基酸交联透明质酸钠凝胶的制备方法
CN101530629A (zh) 一种光交联壳聚糖水凝胶膜的制备方法
Yu et al. Cu+-containing physically crosslinked chitosan hydrogels with shape memory.
CN105536057A (zh) 一种聚乳酸羟基乙酸接枝rgd肽的制备方法及应用
Wang et al. Stretchable, Biodegradable Dual Cross-Linked Chitin Hydrogels with High Strength and Toughness and their Potential Applications in Flexible Electronics

Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 5A E 6A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2160 DE 29/05/2012.