[go: up one dir, main page]

DE3585207D1 - Verfahren zur herstellung wenig vernetzter linearer polymerschaeume. - Google Patents

Verfahren zur herstellung wenig vernetzter linearer polymerschaeume.

Info

Publication number
DE3585207D1
DE3585207D1 DE8585114456T DE3585207T DE3585207D1 DE 3585207 D1 DE3585207 D1 DE 3585207D1 DE 8585114456 T DE8585114456 T DE 8585114456T DE 3585207 T DE3585207 T DE 3585207T DE 3585207 D1 DE3585207 D1 DE 3585207D1
Authority
DE
Germany
Prior art keywords
polymer
foams
linking
cross
linear polymer
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 - Fee Related
Application number
DE8585114456T
Other languages
English (en)
Inventor
Chung Poo Park
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Application granted granted Critical
Publication of DE3585207D1 publication Critical patent/DE3585207D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Materials For Medical Uses (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Organic Insulating Materials (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Molding Of Porous Articles (AREA)
DE8585114456T 1984-11-16 1985-11-14 Verfahren zur herstellung wenig vernetzter linearer polymerschaeume. Expired - Fee Related DE3585207D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/672,001 US4714716A (en) 1984-11-16 1984-11-16 Lightly crosslinked linear olefinic polymer foams and process for making

Publications (1)

Publication Number Publication Date
DE3585207D1 true DE3585207D1 (de) 1992-02-27

Family

ID=24696749

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585114456T Expired - Fee Related DE3585207D1 (de) 1984-11-16 1985-11-14 Verfahren zur herstellung wenig vernetzter linearer polymerschaeume.

Country Status (11)

Country Link
US (1) US4714716A (de)
EP (1) EP0181637B1 (de)
JP (2) JPS61126701A (de)
AT (1) ATE71640T1 (de)
BR (1) BR8505760A (de)
CA (1) CA1247816A (de)
DE (1) DE3585207D1 (de)
DK (1) DK526285A (de)
ES (1) ES8706176A1 (de)
FI (1) FI81819C (de)
NO (1) NO166234C (de)

Families Citing this family (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694025A (en) * 1984-11-16 1987-09-15 The Dow Chemical Company Alcohol control of lightly crosslinked foamed polymer production
US5098782A (en) * 1988-10-13 1992-03-24 Applied Extrusion Technologies, Inc. Extruded ethylenic polymer foam containing both open and closed cells
US5277515A (en) * 1988-10-13 1994-01-11 Applied Extrusion Technologies, Inc. Extruded ethylenic polymer foam containing both open and closed cells
US5116881A (en) * 1990-03-14 1992-05-26 James River Corporation Of Virginia Polypropylene foam sheets
US5527573A (en) * 1991-06-17 1996-06-18 The Dow Chemical Company Extruded closed-cell polypropylene foam
US5567742A (en) * 1992-02-04 1996-10-22 The Dow Chemical Company Dimensionally-stable polypropylene foam expanded with inorganic blowing agents
US5208266A (en) * 1992-04-28 1993-05-04 Toshimichi Yamazaki Lightly crosslinked polymeric foams and process for making same
US5348795A (en) * 1992-12-09 1994-09-20 The Dow Chemical Company Process for making a dimensionally-stable open-cell polypropylene foam with organic blowing agents
DE69230045T2 (de) * 1992-12-17 2000-03-23 The Dow Chemical Co., Midland Extrudierter polypropylenschaum mit geschlossenen zellen
US5552448A (en) * 1993-09-21 1996-09-03 Sekisui Chemical Co., Ltd. Plastic foam material composed of thermoplastic resin and silane-modified thermoplastic resin and method for making same
EP0646622B1 (de) * 1993-09-21 2000-12-13 Sekisui Kagaku Kogyo Kabushiki Kaisha Aus thermoplastischem Kunststoff und silan-modifizierten thermoplastischen Kunststoff hergestelltes Schaummaterial und Verfahren zum Herstellen derselben
US5929129A (en) 1994-09-19 1999-07-27 Sentinel Products Corp. Crosslinked foamable compositions of silane-grafted, essentially linear polyolefins blended with polypropylene
DE69528941T2 (de) * 1994-09-19 2003-09-18 Sentinel Products Corp., Hyannis Vernetzte Schaumstrukturen von hauptsächlich linearen Polyolefinen und Verfahren zur Herstellung
US5883144A (en) 1994-09-19 1999-03-16 Sentinel Products Corp. Silane-grafted materials for solid and foam applications
US5932659A (en) 1994-09-19 1999-08-03 Sentinel Products Corp. Polymer blend
CA2203595A1 (en) 1996-04-26 1997-10-26 Robert F. Hurley Cross-linked polyolefin tape
US5844009A (en) 1996-04-26 1998-12-01 Sentinel Products Corp. Cross-linked low-density polymer foam
US5882776A (en) 1996-07-09 1999-03-16 Sentinel Products Corp. Laminated foam structures with enhanced properties
US5876813A (en) 1996-07-09 1999-03-02 Senitnel Products Corp Laminated foam structures with enhanced properties
US5938878A (en) 1996-08-16 1999-08-17 Sentinel Products Corp. Polymer structures with enhanced properties
DE19722579B4 (de) * 1997-05-30 2004-02-12 Borealis Gmbh Fasern und Garne hoher Festigkeit und Dehnung, Verfahren zu deren Herstellung und Verwendung
RU2213101C2 (ru) * 1997-08-27 2003-09-27 Дау Глобал Текнолоджиз Инк. Связывание винилароматических полимеров и пены
US6325956B2 (en) 1997-08-27 2001-12-04 The Dow Chemical Company Crosslinking of polymers and foams thereof
TR200000516T2 (tr) 1997-08-27 2001-01-22 The Dow Chemical Company Alfa-olefin/vinil aromatik monomer veya engellenmiş alifatik vinil monomer interpolimerleri ile polilefinlerin alaşımlarının birleşmesi
KR20010023366A (ko) * 1997-08-27 2001-03-26 그래햄 이. 테일러 알파-올레핀 및 비닐 방향족 단량체의 상호 중합체의유동학적 개질방법
DE19815046A1 (de) 1998-04-03 1999-10-14 Borealis Ag Polyolefinfolien und Polyolefinbeschichtungen von Substraten
DE19815045B4 (de) * 1998-04-03 2004-04-08 Borealis Gmbh Verbunde mit textilem Charakter und Verfahren zu deren Herstellung sowie deren Verwendung
IL139579A0 (en) 1998-05-27 2002-02-10 Dow Chemical Co Vehicle headliner comprised of thermoformable thermoplastic foam sheet
US6114025A (en) * 1998-06-15 2000-09-05 Tenneco Protective Packaging, Inc. Foam and film/foam laminates using linear low density polyethylene
JP2002524636A (ja) * 1998-09-17 2002-08-06 ザ ダウ ケミカル カンパニー 音響制御性連続気泡ポリオレフィンとその製造方法
US6720362B1 (en) 1998-09-17 2004-04-13 The Dow Chemical Company Perforated foams
US6630231B2 (en) * 1999-02-05 2003-10-07 3M Innovative Properties Company Composite articles reinforced with highly oriented microfibers
US6110588A (en) 1999-02-05 2000-08-29 3M Innovative Properties Company Microfibers and method of making
US6277916B1 (en) 1999-02-25 2001-08-21 The Dow Chemical Company Process for preparing thermoplastic vulcanizates
JP2003518521A (ja) * 1999-06-24 2003-06-10 ザ ダウ ケミカル カンパニー 改良された衝撃特性を有するポリオレフィン組成物
US6541105B1 (en) 1999-09-16 2003-04-01 Dow Global Technologies Inc. Acoustical open-cell polylefins and process for making
AU2001236531A1 (en) 2000-01-24 2001-07-31 The Dow Chemical Company Composition and films thereof
WO2001066632A1 (en) * 2000-03-07 2001-09-13 Borealis Technologies Oy Process for preparing cross-linked polyolefins
DE10011644A1 (de) * 2000-03-10 2001-09-20 Basf Coatings Ag Die Verwendung von Silanen, die eine Azidogruppe enthalten, als Vernetzungsmittel in Beschichtungsstoffen
RU2254347C2 (ru) 2000-03-17 2005-06-20 Дау Глобал Текнолоджиз Инк. Полиолефиновый пенопласт, используемый для звуко- и теплоизоляции
JP4884635B2 (ja) * 2000-03-17 2012-02-29 ダウ グローバル テクノロジーズ エルエルシー 改良された断熱性能を有する吸音性ポリマー発泡体
WO2001070860A2 (en) 2000-03-17 2001-09-27 Dow Global Technologies Inc. Macrocellular polyolefin foam having a high service temperature for acoustical applications
KR100740729B1 (ko) * 2000-05-04 2007-07-19 다우 글로벌 테크놀로지스 인크. 분자 용융물 및 그 분자 용융물의 제조 방법 및 사용 방법
ATE295391T1 (de) * 2000-05-26 2005-05-15 Dow Global Technologies Inc Pelyethylene-reiche mischungen mit polypropylene und ihre verwendung
US6468451B1 (en) 2000-06-23 2002-10-22 3M Innovative Properties Company Method of making a fibrillated article
WO2002034824A2 (en) 2000-10-23 2002-05-02 Dow Global Technologies Inc. Propylene polymer foams
US6420024B1 (en) * 2000-12-21 2002-07-16 3M Innovative Properties Company Charged microfibers, microfibrillated articles and use thereof
US6800669B2 (en) 2000-12-22 2004-10-05 Dow Global Technologies Inc. Propylene copolymer foams
US6680114B2 (en) 2001-05-15 2004-01-20 3M Innovative Properties Company Fibrous films and articles from microlayer substrates
US20030211310A1 (en) * 2001-06-21 2003-11-13 Haas Christopher K. Foam and method of making
EP1423466B1 (de) 2001-08-31 2004-12-22 Borealis Technology Oy Verfahren zur herstellung von vernetzten polyolefinen
AU2003214883B2 (en) * 2002-02-22 2007-10-04 Dow Global Technologies Inc. Thermoplastic foam containing particulate additive
EP1483323A1 (de) * 2002-03-01 2004-12-08 Dow Global Technologies Inc. Dimensionsstabiler polypropylenschaumstoff mit verbesserter wärmealterungsbeständigkeit
US7144925B2 (en) * 2002-05-09 2006-12-05 Dow Global Technologies Inc. Fire resistance acoustic foam
US6649666B1 (en) * 2002-05-21 2003-11-18 Dow Global Technologies Inc. Propylene polymer coupling and foams
US20030232210A1 (en) * 2002-06-18 2003-12-18 3M Innovative Properties Company Ink-receptive foam article
GB2395948A (en) * 2002-12-06 2004-06-09 Pactiv Europ B V Polyolefin foam
CA2454507A1 (en) * 2003-01-08 2004-07-08 Dow Global Technologies Inc. Unitary attic rafter vent and insulation dam assembly
US7820282B2 (en) * 2003-04-10 2010-10-26 3M Innovative Properties Company Foam security substrate
US7655296B2 (en) 2003-04-10 2010-02-02 3M Innovative Properties Company Ink-receptive foam article
US20040209967A1 (en) * 2003-04-21 2004-10-21 Ranken Paul F. Flame retarded styrenic polymer foams
US7883769B2 (en) * 2003-06-18 2011-02-08 3M Innovative Properties Company Integrally foamed microstructured article
ITMI20040344A1 (it) * 2004-02-26 2004-05-26 Fait Plast S P A Metodo per ottenere la reticolazione di una composizione termoplastica e pellicola termoplastica cosi'prodotta
US20050220846A1 (en) 2004-04-05 2005-10-06 Puntenney Steven B Use of beta-1,3 (4)-endoglucanohydrolase, beta-1,3 (4) glucan, diatomaceous earth, mineral clay and glucomannan to augment immune function
US20080262116A1 (en) * 2004-05-07 2008-10-23 Simpson Scott S Cross-Linked Polypropylene Resins, Method of Making Same, and Articles Formed Therefrom
US20050276965A1 (en) * 2004-06-14 2005-12-15 Etchells Marc D Stabilized foam for medical PSA substrate
JP4774708B2 (ja) * 2004-09-30 2011-09-14 東ソー株式会社 未架橋ポリエチレン発泡成形体
ES2299101T3 (es) * 2004-10-22 2008-05-16 Dow Global Technologies Inc. Espuma de polipropileno de celdas intrinsecamente abiertas con tamaño de celda grande.
ES2339956T3 (es) * 2004-12-17 2010-05-27 Dow Global Technologies Inc. Composiciones de polietileno con reologia modificada.
CN101437878B (zh) 2006-03-10 2012-09-05 陶氏环球技术有限责任公司 用于片材和热成型应用的聚乙烯树脂
AU2007270031B2 (en) * 2006-06-29 2012-10-25 Dow Global Technologies Llc Protective adhesive films
US8012550B2 (en) * 2006-10-04 2011-09-06 3M Innovative Properties Company Ink receptive article
US8003176B2 (en) * 2006-10-04 2011-08-23 3M Innovative Properties Company Ink receptive article
US20080114091A1 (en) * 2006-11-15 2008-05-15 Sealed Air Corporation (Us) Apparatus and Method for Preparing a UV-Induced Crosslinked Foam
TWI430462B (zh) 2008-12-12 2014-03-11 Ind Tech Res Inst 封裝材料、矽晶太陽光電模組及薄膜太陽光電模組
WO2015123456A1 (en) 2014-02-12 2015-08-20 OmniGen Research, L.L.C. Composition and method for promoting reduction of heat stress in animals
US20170073487A1 (en) 2014-03-10 2017-03-16 Hickory Springs Manufacturing Company High temperature non-crosslinked polyethylene-based foam and method of making the same
EP3186305B1 (de) * 2014-08-28 2021-04-07 Dow Global Technologies LLC Zusammensetzungen aus einem durch geschäumtes peroxid modifizierten linearen polyethylen mit niedriger dichte und verfahren zur herstellung von geschäumten zusammensetzungen daraus
US20160325472A1 (en) * 2015-05-06 2016-11-10 Lifoam Industries, Llc Foam particles, methods of making and using the same
BR112018009883B1 (pt) * 2015-12-03 2022-01-04 Dow Global Technologies Llc. Processo para fazer uma composição de espuma e espuma
JP2018031887A (ja) * 2016-08-24 2018-03-01 住友電気工業株式会社 光ファイバケーブル
NO345079B1 (no) * 2018-11-18 2020-09-21 Green Power Cable As Fremstilling og utlegning av HVDC sjøkabler
EP4335895A1 (de) 2022-09-07 2024-03-13 Armacell Enterprise GmbH & Co. KG Verbundartikel mit aerogelpartikeln und einem schaum

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB928656A (en) * 1960-12-15 1963-06-12 Montedison Spa Process of preparing cellular materials
US3137745A (en) * 1962-10-15 1964-06-16 Hercules Powder Co Ltd Method of forming hollow plastic articles
GB1050164A (de) * 1963-08-30
GB1408154A (en) * 1972-02-29 1975-10-01 Dow Corning Ltd Foamable ethylene polymer compositions
US3852177A (en) * 1972-10-02 1974-12-03 Dow Chemical Co Method of radiation cross-linking olefin polymers containing acrylate cross-linking promoters
JPS5055675A (de) * 1973-09-18 1975-05-15
FR2285421A1 (fr) * 1974-09-19 1976-04-16 Dupont S T Procede conjoint de reticulation, d'expansion et d'extrusion de mousse de polyethylene
DE2451218A1 (de) * 1974-10-29 1976-05-13 Bayer Ag Vernetzte polyaethylene bzw. polyaethylenschaeume
US4160072A (en) * 1975-03-20 1979-07-03 Sekisui Kagaku Kogyo Kabushiki Kaisha Foamable and crosslinkable polyethylene composition, process for its production, and process for producing crosslinked polyethylene foams using said composition
JPS5834501B2 (ja) * 1975-06-21 1983-07-27 旭ダウ株式会社 熱可塑性樹脂発泡体の製造方法
DE2713181A1 (de) * 1977-03-25 1978-10-05 Kabel Metallwerke Ghh Verfahren zur herstellung geschaeumter materialien
JPS5423670A (en) * 1977-07-22 1979-02-22 Sumitomo Electric Ind Ltd Production of hyghly foamed polyethylene
GB1575961A (en) * 1977-09-07 1980-10-01 Sekisui Chemical Co Ltd Foamable compositions and their use in preparing foams
DE2811642C2 (de) * 1978-03-17 1979-07-26 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zum Herstellen von Schaumstoffen auf Polyolefinbasis
US4413066A (en) * 1978-07-05 1983-11-01 Mitsubishi Petrochemical Company, Ltd. Crosslinkable polyethylene resin compositions
DE2852287C3 (de) * 1978-12-02 1982-05-13 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zur Herstellung von Schaumstoffen aus Polyolefinen
US4226946A (en) * 1979-02-22 1980-10-07 The Dow Chemical Company Polyethylene blend foams having improved compressive strength
JPS6028852B2 (ja) * 1979-08-29 1985-07-06 古河電気工業株式会社 架橋ポリオレフイン発泡体用組成物
DE3001159C2 (de) * 1980-01-15 1987-03-05 kabelmetal electro GmbH, 3000 Hannover Verfahren zum Herstellen schrumpffähiger Formteile
GB2070021B (en) * 1980-02-21 1984-03-21 Furukawa Electric Co Ltd Crosslinked ethylene-vinyl acetate copolymer foam containing an inorganic material and its production
US4424293A (en) * 1980-02-25 1984-01-03 The Furukawa Electric Co., Ltd. Crosslinkable polypropylene composition
JPS5724221A (en) * 1980-07-18 1982-02-08 Sumitomo Electric Ind Ltd Manufacture of highly foamed polypropylene
DE3129515C2 (de) * 1980-07-29 1986-07-24 Hitachi Chemical Co., Ltd., Tokio/Tokyo Schäumbare Styrolharzmasse und Verfahren zu ihrer Herstellung
US4289857A (en) * 1980-07-31 1981-09-15 Asahi-Dow Limited Foamable polymeric compositions
JPS57133032A (en) * 1981-02-10 1982-08-17 Asahi Chem Ind Co Ltd Manufacture of highly expanded polyolefinic resin
JPS581530A (ja) * 1981-06-28 1983-01-06 Dainichi Nippon Cables Ltd 架橋ポリオレフイン管状体の連続製造法
JPS5861129A (ja) * 1981-10-08 1983-04-12 Sekisui Plastics Co Ltd 発泡体の製造法
US4454086A (en) * 1982-06-18 1984-06-12 The Dow Chemical Company Making cross-linked styrene polymer foam

Also Published As

Publication number Publication date
EP0181637A3 (en) 1988-05-25
NO166234B (no) 1991-03-11
ES8706176A1 (es) 1987-06-01
ES548924A0 (es) 1987-06-01
US4714716A (en) 1987-12-22
FI81819C (fi) 1990-12-10
FI854509L (fi) 1986-05-17
ATE71640T1 (de) 1992-02-15
JPS61126701A (ja) 1986-06-14
NO854575L (no) 1986-05-20
NO166234C (no) 1991-06-19
CA1247816A (en) 1989-01-03
EP0181637A2 (de) 1986-05-21
FI854509A0 (fi) 1985-11-15
BR8505760A (pt) 1986-08-12
JPS6390544A (ja) 1988-04-21
EP0181637B1 (de) 1992-01-15
DK526285A (da) 1986-05-17
FI81819B (fi) 1990-08-31
DK526285D0 (da) 1985-11-14

Similar Documents

Publication Publication Date Title
DE3585207D1 (de) Verfahren zur herstellung wenig vernetzter linearer polymerschaeume.
ATE11638T1 (de) Verfahren zur herstellung von gehoerschutz-stopfen aus kunststoffschaum.
DE69534653T2 (de) Formbare thermoplastische schaumperlen
ATE135024T1 (de) Äthylenmischpolymerisat modifizierte dynamisch vulkanisierte mischungen
ATE140468T1 (de) Schäumen von thermoplastischen elastomeren
EP0307195A3 (de) Polyäthylenfolie und Verfahren zu ihrer Herstellung
DE69203622D1 (de) Mikroporöse Folie und Verfahren zu ihrer Herstellung.
CA2282597A1 (en) Methods for producing styrene resin extruded foams, and foams produced thereby
ATE4057T1 (de) Verfahren zur herstellung von immobilisierten mikroorganismen.
KR890003532A (ko) 2겹 발포성형물의 제조방법
AU542290B2 (en) Process for making polyurethane foams
DE69902459D1 (de) Verfahren und gerät zur herstellung einer kunststofffolie, und kunststofffolie
ATE119557T1 (de) Verfahren zur herstellung von vernetztem plastikschaum.
KR890700629A (ko) 열 성형가능 폴리우레탄 발포성 수지 제조 방법과 그 제조 물품
GB1514500A (en) Manufacture of heat-recoverable articles
WO1990011327A3 (de) Verfahren zur herstellung von kunststoffteilen, insbesondere rohren, sowie verschnittmischung zur durchführung des verfahrens
DE3762131D1 (de) Beim vernetzen von polymeren brauchbare zusammensetzung.
KR920019853A (ko) 수성 발포체를 사용하여 제조한 폴리(아릴 에테르)발포체
ATE19092T1 (de) Verfahren zur herstellung von styrenpfropfpolymeren.
ATE163661T1 (de) Verfahren zur herstellung eines kunststoffschaumes
EP0234834A3 (de) Vernetztes Vinylidenchloridpolymer mit Silanfunktionen und daraus hergestellte Folien oder Schäume
DE69526073D1 (de) Verfahren zur Herstellung eines schäumbaren Filmes
ATE19638T1 (de) Herstellung von vinylchlorid polymeren.
JPS53132071A (en) Production of heat-shrinkable polyolefin moldings
KR840004133A (ko) E.V.A(Ethylene. Vinyl. Acetate)의 발포방법

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee