ES2107207T3 - Procedimiento para la preparacion de una composicion de copolimeros de bloques. - Google Patents

Procedimiento para la preparacion de una composicion de copolimeros de bloques.

Info

Publication number
ES2107207T3
ES2107207T3 ES94913079T ES94913079T ES2107207T3 ES 2107207 T3 ES2107207 T3 ES 2107207T3 ES 94913079 T ES94913079 T ES 94913079T ES 94913079 T ES94913079 T ES 94913079T ES 2107207 T3 ES2107207 T3 ES 2107207T3
Authority
ES
Spain
Prior art keywords
monomer
blocks
polymer
block
derived
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.)
Expired - Lifetime
Application number
ES94913079T
Other languages
English (en)
Inventor
Westrenen Jeroen Van
Jacqueline Margaretha Veurink
Dongen Arie Van
Antonius Augustinus Broekhuis
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.)
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
Original Assignee
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
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 SHELL INT RESEARCH, Shell Internationale Research Maatschappij BV filed Critical SHELL INT RESEARCH
Application granted granted Critical
Publication of ES2107207T3 publication Critical patent/ES2107207T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F297/00Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/02Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
    • C08F297/04Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

SE PRESENTA UN PROCESO PARA LA PREPARACION DE COMPOSICIONES DE POLIMEROS EN BLOQUE, CUYO PROCESO CONSISTE EN LOS PASOS SIGUIENTES: (1) SE POLIMERIZA UN MONOMERO AROMATICO DE VINILO EN UN SOLVENTE HIDROCARBURO INERTE EN PRESENCIA DE UN INICIADOR DE ORGANOLITIO HASTA QUE TENGA LUGAR UNA CONVERSION SUSTANCIALMENTE COMPLETA; (2) SE AÑADE UN MONOMERO DE DIENO CONJUGADO A LA MEZCLA DE POLIMERIZACION Y SE DEJA QUE DICHO MONOMERO DE DIENO CONJUGADO SE POLIMERICE HASTA QUE TENGA LUGAR UNA CONVERSION SUSTANCIALMENTE COMPLETA; (3) SE AÑADE UNA SEGUNDA PORCION DE UN INICIADOR DE ORGANOLITIO, SEGUIDO DE LA ADICION DE UNA SEGUNDA PORCION DE MONOMERO DE DIENO CONJUGADO Y SE DEJA QUE DICHO MONOMERO DE DIENO CONJUGADO SE POLIMERICE HASTA QUE SE PRODUZCA UNA CONVERSION SUSTANCIALMENTE COMPLETA; (4) SE AÑADE UNA SEGUNDA PORCION DE MONOMERO AROMATICO DE VINILO Y SE DEJA QUE DICHO MONOMERO AROMATICO DE VINILO SE POLIMERICE HASTA QUE SE PRODUZCA UNA CONVERSION SUSTANCIALMENTE COMPLETA; (5) SE AÑADE UN AGENTE FINALIZADOR. ADEMAS, SE PRESENTA UNA COMPOSICION DE POLIMERO EN BLOQUE QUE CONTIENE: (I) UN COPOLIMERO EN TRES BLOQUES A-B--B''-A'' QUE TIENE DOS BLOQUES FINALES POLIMERICOS IGUALES O DIFERENTES A Y A'' DERIVADOS DE UN MONOMERO AROMATICO DE VINILO Y UN BLOQUE INTERMEDIO POLIMERICO B-B'' DERIVADO DEL MONOMERO DE DIENO CONJUGADO Y (II) UN POLIMERO EN DOS BLOQUES B''-A'' QUE TIENE UN BLOQUE POLIMERICO B'' DERIVADO DEL MONOMERO DE DIENO CONJUGADO Y UN BLOQUE POLIMERICO A'' DERIVADO DEL MONOMERO AROMATICO DE VINILO, EN DONDE LA RELACION EN PESO MOLAR A'' (TRES BLOQUES)/A'' (DOS BLOQUES) ES DE 0,9 A 1,1, EN DONDE LOS DOS POLIMEROS EN BLOQUE SE OBTIENEN MEDIANTE UNA POLIMERIZACION SECUENCIAL Y EN DONDE EL POLIMERO EN TRES BLOQUES ASI COMO EL POLIMERO EN DOS BLOQUES TIENEN UN CONTENIDO AROMATICO DE VINILO DEL 55% EN PESO O INFERIOR EN BASE AL PESO TOTAL DEL POLIMERO EN TRES BLOQUES Y DEL COPOLIMERO EN DOS BLOQUES, RESPECTIVAMENTE.
ES94913079T 1993-03-30 1994-03-28 Procedimiento para la preparacion de una composicion de copolimeros de bloques. Expired - Lifetime ES2107207T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93200909 1993-03-30

Publications (1)

Publication Number Publication Date
ES2107207T3 true ES2107207T3 (es) 1997-11-16

Family

ID=8213730

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94913079T Expired - Lifetime ES2107207T3 (es) 1993-03-30 1994-03-28 Procedimiento para la preparacion de una composicion de copolimeros de bloques.

Country Status (11)

Country Link
US (1) US5405903A (es)
EP (1) EP0691991B1 (es)
JP (1) JP3258664B2 (es)
KR (1) KR100312401B1 (es)
CN (1) CN1068344C (es)
BR (1) BR9405911A (es)
DE (1) DE69405983T2 (es)
ES (1) ES2107207T3 (es)
RU (1) RU2111220C1 (es)
TW (1) TW302374B (es)
WO (1) WO1994022931A1 (es)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW283152B (es) * 1993-11-18 1996-08-11 Shell Internat Res Schappej Bv
EP0718330B1 (en) * 1994-12-23 2000-05-31 Shell Internationale Researchmaatschappij B.V. Process for manufacturing multiarmed asymmetrical radial block copolymers
MX9505304A (es) * 1994-12-23 1997-01-31 Shell Int Research Proceso para la fabricacion de copolimeros de bloque, radiales, asimetricos, de varios brazos.
TW370534B (en) * 1995-01-24 1999-09-21 Shell Internattonale Res Mij B V Process for manufacturing isoprene containing block copolymers
USH1622H (en) * 1995-05-30 1996-12-03 Shell Oil Company Hydrogenated diblock copolymers for adhesives and sealants with improved resistance to degradation
WO1997039076A1 (en) * 1996-04-16 1997-10-23 Shell Internationale Research Maatschappij B.V. Styrene-isoprene-styrene tri block copolymers with adapted diblock copolymers
KR100241052B1 (ko) * 1997-08-27 2000-02-01 박찬구 블록 공중합체의 제조방법
CN1062276C (zh) * 1997-12-09 2001-02-21 北京燕山石油化工公司研究院 共轭二烯和单乙烯基芳烃二嵌段共聚物及其合成方法
EP1091998B1 (en) 1998-06-29 2004-08-04 KRATON Polymers Research B.V. Photo-curable polymer composition and flexographic printing plates containing the same
US6127444A (en) * 1998-09-01 2000-10-03 Shell Oil Company Polymeric compound, use of that compound in a foam production process, a foaming process, foamed compounds and articles containing foamed compounds
DE19914075A1 (de) * 1999-03-27 2000-09-28 Basf Ag Glasklares, schlagzähes Polystyrol auf Basis von Styrol-Butadien-Blockcopolymeren
ES2313965T3 (es) * 2000-06-30 2009-03-16 Kraton Polymers Research B.V. Copolimeros en bloque que comprenden poliestireno y bloques duros de polidieno con un bajo contenido en vinilo.
US6949593B2 (en) 2000-09-28 2005-09-27 Kraton Polymers U.S. Llc Bituminous composition with improved ‘walk-on-ability’ and its use in roofing applications
US6359075B1 (en) * 2001-01-09 2002-03-19 Bridgestone/Firestone, Inc. Means of producing high diblock content thermoplastic elastomers via chain transfer
US6417270B1 (en) * 2001-01-09 2002-07-09 Firestone Polymers, Llc Means of producing high diblock content thermoplastic elastomers with functional termination
US6956084B2 (en) * 2001-10-04 2005-10-18 Bridgestone Corporation Nano-particle preparation and applications
JP3941551B2 (ja) * 2002-03-11 2007-07-04 日本ゼオン株式会社 粘着剤用エラストマー組成物の製造方法
CN1315942C (zh) * 2002-07-31 2007-05-16 日本瑞翁株式会社 热塑性弹性体成形体
KR20040032488A (ko) * 2002-10-10 2004-04-17 금호석유화학 주식회사 3원 블록 공중합체 및 제조방법
EP1583780B1 (en) * 2002-12-18 2013-09-04 Bridgestone Corporation Method for clay exfoliation, compositions therefore, and modified rubber contaiing same
EP1431349A1 (en) * 2002-12-20 2004-06-23 KRATON Polymers Research B.V. Bituminous compositions
US6875818B2 (en) 2003-01-16 2005-04-05 Bridgestone Corporation Polymer nano-strings
JP4069389B2 (ja) * 2003-03-07 2008-04-02 ジェイエスアール クレイトン エラストマー株式会社 アスファルト改質用ブロック共重合体組成物、その製造方法、およびアスファルト組成物
US7517932B2 (en) * 2003-03-24 2009-04-14 Kraton Polymers U.S. Llc Poly(styrene-butadiene-styrene)polymers having a high vinyl content in the butadiene block and hot melt adhesive composition comprising said polymers
US7205370B2 (en) * 2004-01-12 2007-04-17 Bridgestone Corporation Polymeric nano-particles of flower-like structure and applications
US8063142B2 (en) 2004-03-02 2011-11-22 Bridgestone Corporation Method of making nano-particles of selected size distribution
US7112369B2 (en) * 2004-03-02 2006-09-26 Bridgestone Corporation Nano-sized polymer-metal composites
US7718737B2 (en) * 2004-03-02 2010-05-18 Bridgestone Corporation Rubber composition containing functionalized polymer nanoparticles
US20050215693A1 (en) * 2004-03-29 2005-09-29 Xiaorong Wang Clay modified rubber composition and a method for manufacturing same
US20050228074A1 (en) * 2004-04-05 2005-10-13 Bridgestone Corporation Amphiphilic polymer micelles and use thereof
US20050282956A1 (en) * 2004-06-21 2005-12-22 Xiaorong Wang Reversible polymer/metal nano-composites and method for manufacturing same
US7998554B2 (en) * 2004-07-06 2011-08-16 Bridgestone Corporation Hydrophobic surfaces with nanoparticles
CN100503697C (zh) 2004-09-03 2009-06-24 克雷顿聚合物研究公司 可发泡聚合组合物和包含发泡组合物的物体
DE102004059783A1 (de) * 2004-12-10 2006-06-14 Basf Ag Transparente Mischungen linearer Styrol-Butadien-Blockcopolymerer
EP1674530A1 (en) 2004-12-24 2006-06-28 Kraton Polymers Research B.V. High melt strength thermoplastic elastomer composition
US7572855B2 (en) 2005-01-28 2009-08-11 Bridgestone Corporation Nano-composite and compositions manufactured thereof
US7579398B2 (en) * 2005-02-02 2009-08-25 Bridgestone Corporation Nano-composite and compositions therefrom
US7659342B2 (en) * 2005-02-03 2010-02-09 Bridgestone Corporation Polymer nano-particle with polar core and method for manufacturing same
US20060205904A1 (en) * 2005-03-11 2006-09-14 St Clair David J Oil gels of controlled distribution block copolymers and ester oils
US7645507B2 (en) 2005-10-24 2010-01-12 Kraton Polymers U.S. Llc Protective films and pressure sensitive adhesives
US7592381B2 (en) 2005-11-14 2009-09-22 Kraton Polymers U.S. Llc Process for preparing a bituminous binder composition
US7538159B2 (en) 2005-12-16 2009-05-26 Bridgestone Corporation Nanoparticles with controlled architecture and method thereof
US9061900B2 (en) * 2005-12-16 2015-06-23 Bridgestone Corporation Combined use of liquid polymer and polymeric nanoparticles for rubber applications
US7884160B2 (en) 2005-12-19 2011-02-08 Bridgestone Corporation Non-spherical nanoparticles made from living triblock polymer chains
US8288473B2 (en) 2005-12-19 2012-10-16 Bridgestone Corporation Disk-like nanoparticles
US8697775B2 (en) * 2005-12-20 2014-04-15 Bridgestone Corporation Vulcanizable nanoparticles having a core with a high glass transition temperature
US7560510B2 (en) 2005-12-20 2009-07-14 Bridgestone Corporation Nano-sized inorganic metal particles, preparation thereof, and application thereof in improving rubber properties
US7601772B2 (en) * 2005-12-20 2009-10-13 Bridgestone Corporation Nano-composite and method thereof
US8877250B2 (en) 2005-12-20 2014-11-04 Bridgestone Corporation Hollow nano-particles and method thereof
US7585916B2 (en) * 2006-03-24 2009-09-08 Kraton Polymers Us Llc Block copolymer compositions
US7935184B2 (en) 2006-06-19 2011-05-03 Bridgestone Corporation Method of preparing imidazolium surfactants
KR101445405B1 (ko) 2006-07-28 2014-09-26 가부시키가이샤 브리지스톤 상간 영역을 갖는 중합체성 코어-쉘 나노입자
EP2087174B1 (en) 2006-11-13 2017-01-18 Kraton Polymers U.S. LLC Bituminous emulsions
US7597959B2 (en) * 2006-12-19 2009-10-06 Bridgestone Corporation Core-shell fluorescent nanoparticles
US7649049B2 (en) * 2006-12-20 2010-01-19 Bridgestone Corporation Rubber composition containing a polymer nanoparticle
JP5325207B2 (ja) 2007-05-01 2013-10-23 クレイトン・ポリマーズ・ユー・エス・エル・エル・シー ビチューメン結合材組成物およびこれを調製するための方法
US7829624B2 (en) * 2007-06-29 2010-11-09 Bridgestone Corporation One-pot synthesis of nanoparticles and liquid polymer for rubber applications
US7704676B2 (en) 2007-09-04 2010-04-27 Kraton Polymers U.S. Llc Block copolymers having distinct isoprene and butadiene midblocks, method for making same, and uses for such block copolymers
US20090062457A1 (en) * 2007-09-04 2009-03-05 Kraton Polymers U.S. Llc Styrenic block copolymers and compositions containing the same
RU2471833C2 (ru) 2008-04-17 2013-01-10 КРЭЙТОН ПОЛИМЕРС ЮЭс ЭлЭлСи Блок-сополимер и модифицированная полимером композиция битумного вяжущего, предназначенная для использования при укладке асфальтобетонного покрытия в качестве нижнего слоя дорожного покрытия
RU2501816C2 (ru) * 2008-04-30 2013-12-20 Стирон Юроп Гмбх Стирол-бутадиеновые полимеры со стирольным градиентом и способы изготовления таковых
CN102341342B (zh) 2008-12-31 2014-07-16 株式会社普利司通 核起始的纳米颗粒形成方法、纳米颗粒和组合物
US9062144B2 (en) 2009-04-03 2015-06-23 Bridgestone Corporation Hairy polymeric nanoparticles with first and second shell block polymer arms
US9115222B2 (en) * 2009-12-29 2015-08-25 Bridgestone Corporation Well defined, highly crosslinked nanoparticles and method for making same
US20110172364A1 (en) * 2009-12-29 2011-07-14 Chen Yaohong Charged Nanoparticles And Method Of Controlling Charge
CN102453304B (zh) * 2010-10-28 2013-07-03 中国石油化工股份有限公司 单乙烯基芳烃和共轭二烯烃嵌段共聚物组合物、其制备方法及其应用
BR112013020399A2 (pt) 2011-02-18 2016-10-25 Kraton Polymers Us Llc composição polimérica curável, cabo, selante, e, método de enchimento de um cabo de fibra óptica
ES2598035T3 (es) * 2011-03-04 2017-01-24 Trinseo Europe Gmbh Caucho de estireno-butadieno de alto contenido de estireno y alto contenido de vinilo y métodos para la preparación del mismo
US9428604B1 (en) 2011-12-30 2016-08-30 Bridgestone Corporation Nanoparticle fillers and methods of mixing into elastomers
CN104558411B (zh) * 2013-10-17 2017-03-22 中国石油化工股份有限公司 一种共轭二烯烃‑单乙烯基芳烃共聚物及其制备方法
KR102641191B1 (ko) * 2015-03-12 2024-02-26 이네오스 스티롤루션 그룹 게엠베하 튜빙 적용을 위한 스티렌-부타디엔 블록 공중합체
JP7007189B2 (ja) 2015-03-16 2022-01-24 エイチ.ビー.フラー カンパニー 低塗布温度ホットメルト接着剤組成物
FR3041355B1 (fr) 2015-09-18 2017-09-01 Total Marketing Services Composition bitume / polymere presentant des proprietes mecaniques ameliorees
US9790360B2 (en) 2015-12-30 2017-10-17 Kraton Polymers U.S. Llc Oil gel for asphalt modification and rejuvenation
US10793720B2 (en) 2017-03-20 2020-10-06 Kraton Polymers U.S. Llc Reclaimed asphalt composition and methods of making and using same
HUE056144T2 (hu) 2017-07-27 2022-01-28 Trinseo Europe Gmbh In situ polimer keverék gumiabroncshoz
KR102507153B1 (ko) * 2019-10-08 2023-03-07 주식회사 엘지화학 핫 멜트 점착제 조성물 및 이의 제조방법
RU2756588C2 (ru) * 2020-02-26 2021-10-01 Федеральное государственное унитарное предприятие "Ордена Ленина и ордена Трудового Красного Знамени научно-исследовательский институт синтетического каучука имени академика С.В. Лебедева" Способ получения термоэластопластов
WO2023006474A1 (en) 2021-07-26 2023-02-02 Basf Coatings Gmbh Peelable coating system and methods for forming the peelable coating system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096203A (en) * 1976-07-30 1978-06-20 Shell Oil Company Process to control cohesive strength of block copolymer composition
DE2940861A1 (de) * 1979-10-09 1981-04-23 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von mischungen linearer dreiblockcopolymerisate sowie formteile aus diesen
US4391949A (en) * 1981-11-12 1983-07-05 Shell Oil Company Asymmetric block copolymers and corresponding adhesive formulations
JPS61254650A (ja) * 1985-05-07 1986-11-12 Asahi Chem Ind Co Ltd ブロツク共重合体組成物及びその製造方法
ES2036568T3 (es) * 1986-03-21 1993-06-01 Shell Internationale Research Maatschappij B.V. Composiciones de cierre hermetico de fusion en caliente.
US4704434A (en) * 1986-03-24 1987-11-03 Phillips Petroleum Company Craze-resistant polymodal linear block copolymers with terminal tapered blocks
JPH0755999B2 (ja) 1986-09-05 1995-06-14 シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー ブロツク共重合体組成物
US5304598A (en) * 1988-12-23 1994-04-19 Enichem Elastomeri S.P.A. Polymeric compositions and method for preparing them
CA2028410C (en) * 1990-01-02 1996-09-17 William J. Trepka Tapered block styrene/butadiene copolymers
US5256736A (en) * 1991-05-08 1993-10-26 Phillips Petroleum Company Tapered block copolymers of conjugated dienes and monovinylarenes

Also Published As

Publication number Publication date
JP3258664B2 (ja) 2002-02-18
BR9405911A (pt) 1995-12-26
EP0691991A1 (en) 1996-01-17
TW302374B (es) 1997-04-11
US5405903A (en) 1995-04-11
DE69405983D1 (de) 1997-11-06
WO1994022931A1 (en) 1994-10-13
KR100312401B1 (ko) 2001-12-28
DE69405983T2 (de) 1998-02-12
CN1120342A (zh) 1996-04-10
KR960701911A (ko) 1996-03-28
RU2111220C1 (ru) 1998-05-20
JPH08508309A (ja) 1996-09-03
CN1068344C (zh) 2001-07-11
EP0691991B1 (en) 1997-10-01

Similar Documents

Publication Publication Date Title
ES2107207T3 (es) Procedimiento para la preparacion de una composicion de copolimeros de bloques.
RU95121813A (ru) Способ получения блоксополимерной композиции и блок-сополимерная композиция
RU96113057A (ru) Блок-сополимеры с улучшенными сочетаниями свойств
ES2096000T3 (es) Polimeros y copolimeros de dieno terminados por reaccion con nitrilos aromaticos.
Wieland et al. A new additive for controlled radical polymerization
KR960705863A (ko) 특성의 개선된 조합을 갖는 블록 공중합체(block copolymers having improved combinations of properties)
KR900701330A (ko) 골 시멘트
KR890010074A (ko) 개선된 가공성 이소올레핀 중합체
GB1515928A (en) Process for producing a block copolymer mixture
MX9307085A (es) Proceso de polimerizacion por radicales libres para al preparacion de una resina o resinas termoplasticas y composicion de pigmento organico que comprende tales resinas.
ES2094927T3 (es) Copolimero insaturado de etileno-dieno no conjugado y su preparacion por polimerizacion por radicales.
ES2122135T3 (es) Copolimeros de bloques de composicion gradualmente variable de monovinilarenos y dienos conjugados.
RU2001129151A (ru) Прозрачный (как стекло), ударопрочный полистирол на базе бутадиен-стирольных блоксополимеров
DE59408237D1 (de) Vernetzbare Copolymere und Hydrogele
KR950032342A (ko) 선형 블록 공중합체, 그의 제조방법 및 그를 함유하는 접착제 조성물
DK1029030T3 (da) Skumningsresistente carbonhydridoliesammensætninger
JPS52101287A (en) Preparation of conjugated diene polymers
KR880002908A (ko) 부타디엔 및 이소프렌게 abc 블럭 공중합체, 그의 제조방법 및 그의 용도
BR0116204A (pt) Composto n-acóxi-4,4-dióxi-polialquil-pireridina, com grupos glicidila ou alquilcarbonila como iniciadores funcionais para polimerização de radical controlada
ES519009A0 (es) Procedimiento para la obtencion de dispersiones de polimeros de injertos reticulares.
CA2064756A1 (en) Humidity tolerant charge director compositions
ES2070844T3 (es) Composicion de resina a base de estireno.
GB2020670A (en) Liquid polymer and liquid copolymers of Butadiene and the preparation thereof.
ES2121435T3 (es) Composicion util para articulos elastomericos y articulos preparados a partir de la composicion.
KR910020056A (ko) 성상 블록 중합체 및 이의 제조 방법

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 691991

Country of ref document: ES