IN187763B - - Google Patents

Info

Publication number
IN187763B
IN187763B IN564CA1996A IN187763B IN 187763 B IN187763 B IN 187763B IN 564CA1996 A IN564CA1996 A IN 564CA1996A IN 187763 B IN187763 B IN 187763B
Authority
IN
India
Application number
Other languages
English (en)
Inventor
Michael M Geoffrey
Original Assignee
Borden Chem Inc
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 Borden Chem Inc filed Critical Borden Chem Inc
Publication of IN187763B publication Critical patent/IN187763B/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/54Polycondensates of aldehydes
    • C08G18/542Polycondensates of aldehydes with phenols
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C1/00Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/02Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C1/00Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • B22C1/2233Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • B22C1/226Polyepoxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C1/00Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • B22C1/2233Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • B22C1/2273Polyurethanes; Polyisocyanates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C1/00Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/24Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of oily or fatty substances; of distillation residues therefrom
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/16Catalysts
    • C08G18/18Catalysts containing secondary or tertiary amines or salts thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/58Epoxy resins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/40Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
    • C08G59/50Amines
IN564CA1996 1995-10-18 1996-03-28 IN187763B (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/544,865 US5733952A (en) 1995-10-18 1995-10-18 Foundry binder of phenolic resole resin, polyisocyanate and epoxy resin

Publications (1)

Publication Number Publication Date
IN187763B true IN187763B (fr) 2002-06-22

Family

ID=24173923

Family Applications (1)

Application Number Title Priority Date Filing Date
IN564CA1996 IN187763B (fr) 1995-10-18 1996-03-28

Country Status (15)

Country Link
US (2) US5733952A (fr)
EP (1) EP0769338A1 (fr)
JP (1) JPH09124932A (fr)
KR (1) KR100299817B1 (fr)
CN (1) CN1149007A (fr)
AU (1) AU6795796A (fr)
BR (1) BR9602754A (fr)
CA (1) CA2171055A1 (fr)
CO (1) CO4560420A1 (fr)
IN (1) IN187763B (fr)
MX (1) MX9601015A (fr)
NO (1) NO961986L (fr)
PE (1) PE31297A1 (fr)
SG (1) SG48464A1 (fr)
TW (1) TW357189B (fr)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5858549A (en) * 1997-01-07 1999-01-12 National Starch And Chemical Investment Holding Corporation (Hydroxyalkyl)urea crosslinking agents
US5880175A (en) * 1997-03-04 1999-03-09 Ashland Inc. Amine cured foundry binder system and their uses
US5840822A (en) * 1997-09-02 1998-11-24 National Starch And Chemical Investment Holding Corporation Mono(hydroxyalkyl)urea and oxazolidone crosslinking agents
CN1052928C (zh) * 1997-10-22 2000-05-31 沈阳汇亚通铸造材料有限责任公司 一种铸造用自硬砂固化剂及其制备方法
GB2336312B (en) * 1998-04-14 2003-05-21 Reckitt & Colman Inc Improvements in or relating to organic compositions
BR9906613B1 (pt) 1998-07-22 2010-03-23 partÍcula composta, mÉtodos para sua produÇço, mÉtodo de tratamento de fratura e mÉtodo para a filtragem de Água.
US6582819B2 (en) 1998-07-22 2003-06-24 Borden Chemical, Inc. Low density composite proppant, filtration media, gravel packing media, and sports field media, and methods for making and using same
ZA995240B (en) 1998-09-02 2000-02-21 Ashland Inc Amine cured foundry binder systems and their uses.
US6214265B1 (en) 1998-12-17 2001-04-10 Bayer Corporation Mixed PMDI/resole resin binders for the production of wood composite products
US6294117B1 (en) 1998-12-17 2001-09-25 Bayer Corporation Mixed PMDI/solid novolac resin binders for the production of wood composite products
US6467991B1 (en) 1999-07-09 2002-10-22 James T. Joyce Process and material for preventing contamination and erosion of golf course sand traps
US6479127B1 (en) 1999-10-12 2002-11-12 J.M. Huber Corporation Manufacture of multi-layered board with a unique resin system
US6416696B1 (en) 1999-12-16 2002-07-09 Bayer Corporation Aqueous mixed pMDI/phenolic resin binders for the production of wood composite products
JP4761417B2 (ja) * 2001-05-11 2011-08-31 日本化薬株式会社 新規エポキシ樹脂、硬化剤及びエポキシ樹脂組成物
US20050154090A1 (en) * 2001-09-05 2005-07-14 Carmen Salvino Polymer composition and method of rapid preparation in situ
DE10227512B4 (de) * 2002-06-19 2004-07-08 Georg Fischer Gmbh & Co.Kg Verfahren zur Herstellung von Giesskernen oder Formen, sowie nach diesem Verfahren hergestellte Giesskerne oder Formen
US20040051078A1 (en) * 2002-09-12 2004-03-18 Gernon Michael David Reactive amine catalysts for use in PUCB foundry binder
US7138130B2 (en) * 2003-01-30 2006-11-21 S.C. Johnson & Son, Inc. Substrate for volatile delivery systems
RU2344040C2 (ru) * 2003-04-15 2009-01-20 Хексион Спешелти Кемикалс, Инк. Частицы материала, содержащие термопластичный эластомер, и способы их получения и использование
US20120031613A1 (en) 2005-08-09 2012-02-09 Momentive Specialty Chemicals Inc. Methods and compositions for determination of fracture geometry in subterranean formations
WO2007019585A2 (fr) 2005-08-09 2007-02-15 Hexion Specialty Chemicals Inc. Procedes et compositions de determination de geometrie de fracture dans des formations souterraines
PL1955792T3 (pl) 2007-01-22 2019-11-29 Arkema France Sposób wytwarzania kształtowanych rdzeni odlewniczych i odlewania metali
EP1955791A1 (fr) * 2007-01-22 2008-08-13 Arkema France Procédé de manufacture d'un noyau de fonderie et procédé de fonderire
US9062202B2 (en) * 2007-02-26 2015-06-23 Hexion Inc. Resin-polyester blend binder compositions, method of making same and articles made therefrom
US7624802B2 (en) 2007-03-22 2009-12-01 Hexion Specialty Chemicals, Inc. Low temperature coated particles for use as proppants or in gravel packs, methods for making and using the same
WO2009004086A1 (fr) * 2007-07-05 2009-01-08 Gtp-Schäfer Giesstechnische Produkte Gmbh Variante de procédé à boîte froide
MX2010005268A (es) * 2007-11-14 2010-09-09 Univ Northern Iowa Res Foundat Sistema de aglutinante bio-basado.
BRPI0819366A2 (pt) 2007-11-14 2015-04-22 Univ Northern Iowa Res Foundation Sistema para uso na preparação de uma composição polimérica, processo de preparação de uma composição polimérica, kit, artigo, artigo preenchido e molde de fundição
DE102008007181A1 (de) 2008-02-01 2009-08-06 Ashland-Südchemie-Kernfest GmbH Verwendung von verzweigten Alkandiolcarbonsäurediestern in Gießereibindemitteln auf Polyurethanbasis
CN101977709B (zh) * 2008-03-19 2013-03-20 旭有机材工业株式会社 壳型用酚醛树脂组合物、壳型用树脂覆膜砂以及使用其得到的铸型
EA023407B1 (ru) 2008-10-29 2016-06-30 Басф Се Пропант для гидравлического разрыва подземного пласта
US9714378B2 (en) 2008-10-29 2017-07-25 Basf Se Proppant
DE102008055042A1 (de) * 2008-12-19 2010-06-24 Hüttenes-Albertus Chemische Werke GmbH Modifizierte Phenolharze
US8240383B2 (en) * 2009-05-08 2012-08-14 Momentive Specialty Chemicals Inc. Methods for making and using UV/EB cured precured particles for use as proppants
CN102114521B (zh) * 2009-12-31 2014-11-19 济南圣泉集团股份有限公司 一种聚氨酯改性环氧树脂双组分粘结剂
DE102010051567A1 (de) * 2010-11-18 2012-05-24 Ashland-Südchemie-Kernfest GmbH Bindemittel auf Polyurethanbasis zur Herstellung von Kernen und Gießformen unter Verwendung von Isocyanaten enthaltend eine Urethonimin- und/oder Carbodiimid-Gruppe, eine Formstoffmischung enthaltend das Bindemittel und ein Verfahren unter Verwendung des Bindemittels
DE102010051817A1 (de) * 2010-11-18 2012-05-24 Ashland-Südchemie-Kernfest GmbH Verfahren zur Herstellung beschichteter Proppants
CN102581216B (zh) * 2011-01-04 2014-01-15 济南圣泉集团股份有限公司 双组分环氧树脂粘结剂、包含其的铸造混合物、铸造成型体、以及浇铸金属制品的方法
US9725645B2 (en) 2011-05-03 2017-08-08 Preferred Technology, Llc Proppant with composite coating
US9040467B2 (en) 2011-05-03 2015-05-26 Preferred Technology, Llc Coated and cured proppants
US8993489B2 (en) * 2011-05-03 2015-03-31 Preferred Technology, Llc Coated and cured proppants
US9290690B2 (en) 2011-05-03 2016-03-22 Preferred Technology, Llc Coated and cured proppants
US8763700B2 (en) 2011-09-02 2014-07-01 Robert Ray McDaniel Dual function proppants
US9562187B2 (en) 2012-01-23 2017-02-07 Preferred Technology, Llc Manufacture of polymer coated proppants
EP2829335A4 (fr) * 2012-03-23 2016-01-13 Asahi Organic Chem Ind Liant organique durcissable, du type uréthane, pour moule, composition de sable de moulage et moule obtenu en utilisant ce liant et cette composition
CN102718940B (zh) * 2012-06-28 2013-11-27 广州高金技术产业集团有限公司 高粘结强度且耐高温的酚醛树脂改性聚氨酯胶黏剂及其制备方法
US9518214B2 (en) 2013-03-15 2016-12-13 Preferred Technology, Llc Proppant with polyurea-type coating
DE102013004663B4 (de) 2013-03-18 2024-05-02 Ask Chemicals Gmbh Bindemittelsystem, Formstoffmischung enthaltend dasselbe, Verfahren zur Herstellung der Formstoffmischung, Verfahren zur Herstellung eines Gießformteils oder Gießkerns, Gießformteil oder Gießkern sowie Verwendung des so erhältlichen Gießformteils oder Gießkerns für den Metallguss
US10100247B2 (en) 2013-05-17 2018-10-16 Preferred Technology, Llc Proppant with enhanced interparticle bonding
CN103317083B (zh) * 2013-06-13 2015-09-09 济南圣泉集团股份有限公司 一种提高胺法冷芯盒砂芯脱模性的方法
AR097446A1 (es) * 2013-08-30 2016-03-16 Preferred Tech Llc Agente de sostén con revestimiento compuesto
US9790422B2 (en) 2014-04-30 2017-10-17 Preferred Technology, Llc Proppant mixtures
US9862881B2 (en) 2015-05-13 2018-01-09 Preferred Technology, Llc Hydrophobic coating of particulates for enhanced well productivity
WO2016183313A1 (fr) 2015-05-13 2016-11-17 Preferred Technology, Llc Agents de soutènement à haute performance
DE102016203313A1 (de) * 2016-03-01 2017-09-07 Siemens Aktiengesellschaft Bindersystem zur Herstellung eines Schlickers und mit dem Schlicker hergestelltes Bauteil
US11845828B2 (en) * 2016-10-31 2023-12-19 Mitsui Chemicals, Inc. Polymerizable composition for optical material, optical material, and producing method thereof
US11208591B2 (en) 2016-11-16 2021-12-28 Preferred Technology, Llc Hydrophobic coating of particulates for enhanced well productivity
RU177159U1 (ru) * 2016-11-21 2018-02-12 Юрий Мурадович Погосбекян Установка для электрической обработки литейного связующего материала
US10696896B2 (en) 2016-11-28 2020-06-30 Prefferred Technology, Llc Durable coatings and uses thereof
CN106734862A (zh) * 2016-12-16 2017-05-31 池州恒和精密机械有限公司 一种化学硬化砂型铸造用粘结剂
EP3731958B1 (fr) 2017-12-28 2024-02-07 Ecolab USA, Inc. Compositions tensioactives et leurs utilisations en tant que convertisseurs
CN108192545A (zh) * 2018-01-12 2018-06-22 厦门市点同昌包装有限公司 一种覆膜外包装盒及其制造方法
US11142713B2 (en) 2018-09-27 2021-10-12 Ecolab Usa Inc. Asphaltene-inhibiting method using aromatic polymer compositions
CN109822039B (zh) * 2019-04-01 2020-08-04 西南大学 一种基于水性聚氨酯改性的生物胶粘结剂及其制备方法
CN111978678B (zh) * 2020-08-31 2023-09-19 江苏华海诚科新材料股份有限公司 一种环氧树脂组合物及其制备方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449928A (en) * 1944-02-26 1948-09-21 Pennsylvania Ind Chemical Corp Synthetic rubber plasticized with a composition composed essentially of an aromatic hydrocarbon oil
US3442974A (en) * 1965-05-17 1969-05-06 Dow Chemical Co Thermosettable epoxides containing isocyanate blocked with phenol-formaldehyde novolacs
US3668160A (en) * 1969-04-21 1972-06-06 Precision Metalsmiths Inc Resin-coated sand mixes for shell molding
US3935339A (en) * 1973-07-16 1976-01-27 Exxon Production Research Company Method for coating particulate material thereof
AR205050A1 (es) * 1974-09-27 1976-03-31 Cpc International Inc Arena recubierta con resina de fenolformaldehido
NL180603C (nl) * 1975-03-26 1987-03-16 Henkel Kgaa Werkwijze voor de bereiding van plakmiddelen en samengesteld voorwerp, vervaardigd onder toepassing van een aldus bereid plakmiddel.
US4293480A (en) * 1979-05-11 1981-10-06 Ashland Oil, Inc. Urethane binder compositions for no-bake and cold box foundry application utilizing isocyanato-urethane polymers
US4294742A (en) * 1980-04-15 1981-10-13 Sun Oil Company Of Pennsylvania Plasticized vinyl resins containing a linear mono C12 alkyl diphenyl compound
US4415469A (en) * 1981-11-02 1983-11-15 Stauffer Chemical Company Phase stable compositions containing a paraffinic polyol and an isocyanate reactive prepolymer
JPS60260621A (ja) * 1984-06-08 1985-12-23 Dainippon Ink & Chem Inc 成形材料用樹脂組成物
US4546124A (en) * 1984-10-12 1985-10-08 Acme Resin Corporation Polyurethane binder compositions
EP0218812B1 (fr) * 1985-09-16 1992-07-01 Vianova Kunstharz Aktiengesellschaft Procédé de préparation de liants de peintures cationiques autoréticulants
US4680346A (en) * 1985-12-13 1987-07-14 Ppg Industries, Inc. Flexible primer composition and method of providing a substrate with a flexible multilayer coating
US5286765A (en) * 1989-09-15 1994-02-15 Bayer Aktiengesellschaft Process for the preparation of foundry cores and molds
US5189079A (en) * 1991-06-12 1993-02-23 Acme Resin Corp. Low free formaldehyde phenolic polyol formulation
DE4137556A1 (de) * 1991-11-15 1993-05-19 Basf Ag Waessrige polyurethandispersionen
DE4303887A1 (de) * 1993-02-10 1994-04-21 Bayer Ag Harte Polyurethanschaumstoffe bildende Einkomponentensysteme
US5489646A (en) * 1994-01-10 1996-02-06 Koch Industries, Inc. Lower alkyl biphenyls as plasticizers
JP3364314B2 (ja) * 1994-03-31 2003-01-08 サンスター技研株式会社 加熱硬化性ウレタン組成物

Also Published As

Publication number Publication date
NO961986D0 (no) 1996-05-15
NO961986L (no) 1997-04-21
CA2171055A1 (fr) 1997-04-19
BR9602754A (pt) 1998-09-08
EP0769338A1 (fr) 1997-04-23
PE31297A1 (es) 1997-09-13
TW357189B (en) 1999-05-01
US5733952A (en) 1998-03-31
MX9601015A (es) 1997-04-30
AU6795796A (en) 1997-04-24
JPH09124932A (ja) 1997-05-13
SG48464A1 (en) 2000-05-23
CN1149007A (zh) 1997-05-07
KR970021121A (ko) 1997-05-28
US5981622A (en) 1999-11-09
CO4560420A1 (es) 1998-02-10
KR100299817B1 (ko) 2001-11-22

Similar Documents

Publication Publication Date Title
BR122012014331A2 (fr)
BRPI9612258B1 (fr)
IN187763B (fr)
BRPI9612138B1 (fr)
IN188469B (fr)
IN185384B (fr)
IN187026B (fr)
IN187458B (fr)
FR2728803B1 (fr)
CH0741373H1 (fr)
IN186189B (fr)
FR2732733B3 (fr)
FR2729055B1 (fr)
BR7502120U (fr)
IN183115B (fr)
IN188514B (fr)
IN188213B (fr)
BR7501503U (fr)
IN183234B (fr)
CN3034829S (fr)
CN3035323S (fr)
CN3032568S (fr)
CN3030543S (fr)
CN3031742S (fr)
CN3032692S (fr)