BR0314484B1 - mÉtodos para modificar uma propriedade de fluxo de um polÍmero, para modificar um valor de fluxo de resina de um polÍmero, para controlar uma propriedade de resina de uma poliolefina, para produzir uma poliolefina e reduzir poliolefinas fora de especificaÇço, para reduzir poliolefina fora de especificaÇço em uma reaÇço de polimerizaÇço, para controlar uma reaÇço de polimerizaÇço contÍnua, mÉtodo contÍnuo para a polimerizaÇço de uma poliolefina e mÉtodo para a polimerizaÇço contÍnua de um ou mais polÍmeros de alfa-olefina - Google Patents

mÉtodos para modificar uma propriedade de fluxo de um polÍmero, para modificar um valor de fluxo de resina de um polÍmero, para controlar uma propriedade de resina de uma poliolefina, para produzir uma poliolefina e reduzir poliolefinas fora de especificaÇço, para reduzir poliolefina fora de especificaÇço em uma reaÇço de polimerizaÇço, para controlar uma reaÇço de polimerizaÇço contÍnua, mÉtodo contÍnuo para a polimerizaÇço de uma poliolefina e mÉtodo para a polimerizaÇço contÍnua de um ou mais polÍmeros de alfa-olefina

Info

Publication number
BR0314484B1
BR0314484B1 BRPI0314484-4B1A BR0314484A BR0314484B1 BR 0314484 B1 BR0314484 B1 BR 0314484B1 BR 0314484 A BR0314484 A BR 0314484A BR 0314484 B1 BR0314484 B1 BR 0314484B1
Authority
BR
Brazil
Prior art keywords
polyolefin
resin
continuous
modifying
polymerization
Prior art date
Application number
BRPI0314484-4B1A
Other languages
English (en)
Portuguese (pt)
Other versions
BR0314484A (pt
Inventor
John R Parrish
Ivan J Hartley
Lonnie L Pinson
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 filed Critical
Publication of BR0314484A publication Critical patent/BR0314484A/pt
Publication of BR0314484B1 publication Critical patent/BR0314484B1/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/02—Ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2400/00—Characteristics for processes of polymerization
    • C08F2400/02—Control or adjustment of polymerization parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S526/901—Monomer polymerized in vapor state in presence of transition metal containing catalyst

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
BRPI0314484-4B1A 2002-09-27 2003-07-28 mÉtodos para modificar uma propriedade de fluxo de um polÍmero, para modificar um valor de fluxo de resina de um polÍmero, para controlar uma propriedade de resina de uma poliolefina, para produzir uma poliolefina e reduzir poliolefinas fora de especificaÇço, para reduzir poliolefina fora de especificaÇço em uma reaÇço de polimerizaÇço, para controlar uma reaÇço de polimerizaÇço contÍnua, mÉtodo contÍnuo para a polimerizaÇço de uma poliolefina e mÉtodo para a polimerizaÇço contÍnua de um ou mais polÍmeros de alfa-olefina BR0314484B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/259,094 US6846884B2 (en) 2002-09-27 2002-09-27 Control of resin properties
PCT/US2003/023596 WO2004029108A1 (en) 2002-09-27 2003-07-28 Improved control of resin properties

Publications (2)

Publication Number Publication Date
BR0314484A BR0314484A (pt) 2005-07-26
BR0314484B1 true BR0314484B1 (pt) 2013-07-09

Family

ID=32029427

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0314484-4B1A BR0314484B1 (pt) 2002-09-27 2003-07-28 mÉtodos para modificar uma propriedade de fluxo de um polÍmero, para modificar um valor de fluxo de resina de um polÍmero, para controlar uma propriedade de resina de uma poliolefina, para produzir uma poliolefina e reduzir poliolefinas fora de especificaÇço, para reduzir poliolefina fora de especificaÇço em uma reaÇço de polimerizaÇço, para controlar uma reaÇço de polimerizaÇço contÍnua, mÉtodo contÍnuo para a polimerizaÇço de uma poliolefina e mÉtodo para a polimerizaÇço contÍnua de um ou mais polÍmeros de alfa-olefina

Country Status (8)

Country Link
US (1) US6846884B2 (enExample)
EP (1) EP1546220A1 (enExample)
JP (1) JP2006500458A (enExample)
CN (1) CN1314715C (enExample)
BR (1) BR0314484B1 (enExample)
CA (1) CA2499233A1 (enExample)
WO (1) WO2004029108A1 (enExample)
ZA (1) ZA200502327B (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7125933B2 (en) * 2000-06-22 2006-10-24 Univation Technologies, Llc Very low density polyethylene blends
AR048828A1 (es) * 2004-04-13 2006-05-31 Union Carbide Chem Plastic Uso de un fraccionamiento instantaneo para mejorar el control del reactor
US7683140B2 (en) * 2004-05-20 2010-03-23 Univation Technologies, Llc Method for determining temperature value indicative of resin stickiness from data generated by polymerization reaction monitoring
US7754830B2 (en) * 2004-05-20 2010-07-13 Univation Technologies, Llc Polymerization reaction monitoring with determination of induced condensing agent concentration for preventing discontinuity events
EP1805229A1 (en) 2004-10-28 2007-07-11 Dow Gloval Technologies Inc. Method of controlling a polymerization reactor
US7321015B2 (en) * 2004-12-07 2008-01-22 Nova Chemicals (International) S.A. Adjusting polymer characteristics through process control
US7323523B2 (en) * 2004-12-07 2008-01-29 Nova Chemicals (International) S.A. Adjusting polymer characteristics through process control
US7343225B2 (en) * 2005-06-03 2008-03-11 Univation Technologies, Llc Method for reducing off-grade product production during reaction transitions
EP1840140A1 (en) * 2006-03-30 2007-10-03 Total Petrochemicals Research Feluy Method for making a transition between polymer grades
CN101511877B (zh) * 2006-09-07 2012-09-05 尤尼威蒂恩技术有限责任公司 由聚合反应监测产生的数据确定指示树脂粘附的温度值的方法
CN101511882B (zh) * 2006-09-07 2011-09-21 尤尼威蒂恩技术有限责任公司 使用降低熔融起始温度的模型在线测定树脂粘着性程度的方法
AU2006348445B2 (en) * 2006-09-21 2011-03-10 Union Carbide Chemicals & Plastics Technology Llc Method of controlling properties in multimodal systems
WO2008076386A1 (en) * 2006-12-18 2008-06-26 Univation Technologies, Llc Method for reducing and/or preventing production of excessively low density polymer product during polymerization transitions
IN2012DN02132A (enExample) 2009-12-18 2015-08-21 Univation Tech Llc
MX2015003054A (es) 2012-09-07 2016-04-28 Univation Tech Llc Controlar una reaccion de poliolefina.
WO2014039522A1 (en) 2012-09-07 2014-03-13 Univation Technologies, Llc A method for determining a stickiness temperature of a resin
US8986618B2 (en) * 2013-06-28 2015-03-24 Ineos Usa, Llc System and method for rapid transitioning of polyolefin processes from one product to another
EP2995635A1 (en) * 2014-09-11 2016-03-16 Sulzer Chemtech AG Method to minimize the transition time from one polymer grade to another polymer grade in a polymerization plant
CA3044897A1 (en) * 2016-11-28 2018-05-31 Univation Technologies, Llc Producing a polyethylene polymer
CN107098991B (zh) * 2017-04-11 2019-04-16 浙江大学 一种烯烃聚合方法及装置
WO2020160078A1 (en) * 2019-01-31 2020-08-06 Dow Global Technologies Llc Process control

Family Cites Families (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4076698A (en) * 1956-03-01 1978-02-28 E. I. Du Pont De Nemours And Company Hydrocarbon interpolymer compositions
US5106806A (en) * 1990-10-18 1992-04-21 Shell Oil Company Olefin polymerization catalyst
NL130577C (enExample) * 1964-07-17
CA849081A (en) * 1967-03-02 1970-08-11 Du Pont Of Canada Limited PRODUCTION OF ETHYLENE/.alpha.-OLEFIN COPOLYMERS OF IMPROVED PHYSICAL PROPERTIES
US3485706A (en) * 1968-01-18 1969-12-23 Du Pont Textile-like patterned nonwoven fabrics and their production
US4314912A (en) * 1977-02-03 1982-02-09 The Dow Chemical Company High efficiency, high temperature catalyst for polymerizing olefins
US4302565A (en) * 1978-03-31 1981-11-24 Union Carbide Corporation Impregnated polymerization catalyst, process for preparing, and use for ethylene copolymerization
US4482687A (en) * 1979-10-26 1984-11-13 Union Carbide Corporation Preparation of low-density ethylene copolymers in fluid bed reactor
US4340563A (en) * 1980-05-05 1982-07-20 Kimberly-Clark Corporation Method for forming nonwoven webs
US4322027A (en) * 1980-10-02 1982-03-30 Crown Zellerbach Corporation Filament draw nozzle
US4413110A (en) * 1981-04-30 1983-11-01 Allied Corporation High tenacity, high modulus polyethylene and polypropylene fibers and intermediates therefore
US4540755A (en) * 1982-09-30 1985-09-10 National Petro Chemicals Corporation Inclusion of oxygen in the polymerization of olefins
US4937299A (en) * 1983-06-06 1990-06-26 Exxon Research & Engineering Company Process and catalyst for producing reactor blend polyolefins
US4547475A (en) * 1984-09-07 1985-10-15 The Dow Chemical Company Magnesium halide catalyst support and transition metal catalyst prepared thereon
US4619980A (en) * 1985-04-01 1986-10-28 Phillips Petroleum Company Polymerization catalyst, method of making and use therefor
US4612300A (en) * 1985-06-06 1986-09-16 The Dow Chemical Company Novel catalyst for producing relatively narrow molecular weight distribution olefin polymers
US4663220A (en) * 1985-07-30 1987-05-05 Kimberly-Clark Corporation Polyolefin-containing extrudable compositions and methods for their formation into elastomeric products including microfibers
US4668566A (en) * 1985-10-07 1987-05-26 Kimberly-Clark Corporation Multilayer nonwoven fabric made with poly-propylene and polyethylene
US4668838A (en) * 1986-03-14 1987-05-26 Union Carbide Corporation Process for trimerization
US4735931A (en) * 1986-06-16 1988-04-05 Phillips Petroleum Company In situ comonomer generation in olefin polymerization
US5473027A (en) * 1986-06-20 1995-12-05 Chevron Chemical Company Production of blow molding polyethylene resin
US4804714A (en) * 1987-11-20 1989-02-14 Union Carbide Corporation Polyolefin blends
FR2646426B2 (fr) * 1988-09-13 1991-08-16 Bp Chemicals Sa Procede et appareillage de polymerisation d'alpha-olefine en phase gazeuse en presence d'un agent ralentisseur d'activite
US5115068A (en) * 1988-09-26 1992-05-19 Phillips Petroleum Company High strength linear, low density ethylene copolymer
US5244987A (en) * 1988-12-22 1993-09-14 Bf Chemicals Limited Process for alpha-olefin gas-phase polymerization controlled by the simultaneous addition of an activator and an activity retarder to the polymerization medium
US5218071A (en) * 1988-12-26 1993-06-08 Mitsui Petrochemical Industries, Ltd. Ethylene random copolymers
NZ235032A (en) 1989-08-31 1993-04-28 Dow Chemical Co Constrained geometry complexes of titanium, zirconium or hafnium comprising a substituted cyclopentadiene ligand; use as olefin polymerisation catalyst component
US5064802A (en) * 1989-09-14 1991-11-12 The Dow Chemical Company Metal complex compounds
US6188178B1 (en) * 1990-05-24 2001-02-13 U.S. Philips Corporation Flat-panel picture display device with spacer means adjacent the display screen
US5191521A (en) * 1990-06-18 1993-03-02 Controlsoft, Inc. Modular multivariable control apparatus and method
US5272236A (en) * 1991-10-15 1993-12-21 The Dow Chemical Company Elastic substantially linear olefin polymers
ES2071888T3 (es) * 1990-11-12 1995-07-01 Hoechst Ag Bisindenilmetalocenos sustituidos en posicion 2, procedimiento para su preparacion y su utilizacion como catalizadores en la polimerizacion de olefinas.
US5189192A (en) * 1991-01-16 1993-02-23 The Dow Chemical Company Process for preparing addition polymerization catalysts via metal center oxidation
US5231151A (en) * 1991-01-18 1993-07-27 The Dow Chemical Company Silica supported transition metal catalyst
US5137994A (en) * 1991-05-23 1992-08-11 Union Carbide Chemicals & Plastics Technology Corporation Process for the simultaneous trimerization and copolymerization of ethylene
TW300901B (enExample) * 1991-08-26 1997-03-21 Hoechst Ag
US5783638A (en) * 1991-10-15 1998-07-21 The Dow Chemical Company Elastic substantially linear ethylene polymers
US5677383A (en) * 1991-10-15 1997-10-14 The Dow Chemical Company Fabricated articles made from ethylene polymer blends
US5525695A (en) * 1991-10-15 1996-06-11 The Dow Chemical Company Elastic linear interpolymers
US5278272A (en) * 1991-10-15 1994-01-11 The Dow Chemical Company Elastic substantialy linear olefin polymers
ATE141609T1 (de) * 1991-11-30 1996-09-15 Hoechst Ag Metallocene mit benzokondensierten indenylderivaten als liganden, verfahren zu ihrer herstellung und ihre verwendung als katalysatoren
EP0574561B1 (en) * 1992-01-06 1998-01-28 The Dow Chemical Company Improved catalyst composition
US5374696A (en) * 1992-03-26 1994-12-20 The Dow Chemical Company Addition polymerization process using stabilized reduced metal catalysts
KR950701650A (ko) 1992-05-29 1995-04-28 리차드 에이. 크렛취머 알파-올레핀의 중합방법(Polymerization of alpha-olefins)
US5317036A (en) * 1992-10-16 1994-05-31 Union Carbide Chemicals & Plastics Technology Corporation Gas phase polymerization reactions utilizing soluble unsupported catalysts
US5608019A (en) * 1992-12-28 1997-03-04 Mobil Oil Corporation Temperature control of MW in olefin polymerization using supported metallocene catalyst
CZ288678B6 (cs) * 1993-01-29 2001-08-15 The Dow Chemical Company Způsob přípravy ethylen/alfa-olefinových interpolymerních kompozic
US5470993A (en) * 1993-06-24 1995-11-28 The Dow Chemical Company Titanium(II) or zirconium(II) complexes and addition polymerization catalysts therefrom
US6111020A (en) * 1994-09-02 2000-08-29 The Dow Chemical Company Crosslinked foams from blends of ethylene vinyl acetate and ethylene-styrene interpolymers
US5869575A (en) * 1995-08-02 1999-02-09 The Dow Chemical Company Ethylene interpolymerizations
US6135953A (en) 1996-01-25 2000-10-24 3M Innovative Properties Company Multi-functional biomedical electrodes
US5627242A (en) * 1996-03-28 1997-05-06 Union Carbide Chemicals & Plastics Technology Corporation Process for controlling gas phase fluidized bed polymerization reactor
US5977251A (en) * 1996-04-01 1999-11-02 The Dow Chemical Company Non-adiabatic olefin solution polymerization
US5844054A (en) * 1997-03-21 1998-12-01 Samples; Paul Kevin Process control in the presence of chromium based catalysts
US5990250A (en) * 1997-05-30 1999-11-23 Union Carbide Chemicals & Plastics Technology Corporation Method of fluidized bed temperature control
US6063877A (en) * 1997-07-31 2000-05-16 Union Carbide Chemicals & Plastics Technology Corporation Control of gas phase polymerization reactions
CN1273592A (zh) * 1997-08-27 2000-11-15 陶氏化学公司 α烯烃与乙烯基芳族单体的共聚物的流变改性方法
WO1999046327A1 (en) * 1998-03-11 1999-09-16 The Dow Chemical Company STRUCTURES AND FABRICATED ARTICLES HAVING SHAPE MEMORY MADE FROM α-OLEFIN/VINYL OR VINYLIDENE AROMATIC AND/OR HINDERED ALIPHATIC VINYL OR VINYLIDENE INTERPOLYMERS
KR100551782B1 (ko) * 1998-03-11 2006-02-13 다우 글로벌 테크놀로지스 인크. 알파-올레핀/비닐 또는 비닐리덴 방향족 및/또는 장애 지환족 또는 지방족 비닐 또는 비닐리덴 인터폴리머로부터 제조된 섬유
BR9803848A (pt) 1998-10-08 2000-10-31 Opp Petroquimica S A Sistema para inferência em linha de propriedades fìsicas e quìmicas, sistema para inferência em linha de variáveis de processo, e, sistema de controle em linha
US6300429B1 (en) * 1998-12-31 2001-10-09 Union Carbide Chemicals & Plastics Technology Corporation Method of modifying near-wall temperature in a gas phase polymerization reactor
US6384157B1 (en) * 2000-05-16 2002-05-07 Union Carbide Chemicals & Plastics Technology Corporation Method of detecting and correcting local defluidization and channeling in fluidized-bed reactors for polymerization
US6365681B1 (en) * 2001-01-16 2002-04-02 Union Carbide Chemicals & Plastics Technology Corporation Preventing upsets in polymerization reactors

Also Published As

Publication number Publication date
CN1314715C (zh) 2007-05-09
CN1684987A (zh) 2005-10-19
ZA200502327B (en) 2006-05-31
US20040063871A1 (en) 2004-04-01
CA2499233A1 (en) 2004-04-08
US6846884B2 (en) 2005-01-25
WO2004029108A1 (en) 2004-04-08
BR0314484A (pt) 2005-07-26
EP1546220A1 (en) 2005-06-29
JP2006500458A (ja) 2006-01-05
AU2003254237A1 (en) 2004-04-19
AU2003254237B2 (en) 2009-01-08

Similar Documents

Publication Publication Date Title
BR0314484B1 (pt) mÉtodos para modificar uma propriedade de fluxo de um polÍmero, para modificar um valor de fluxo de resina de um polÍmero, para controlar uma propriedade de resina de uma poliolefina, para produzir uma poliolefina e reduzir poliolefinas fora de especificaÇço, para reduzir poliolefina fora de especificaÇço em uma reaÇço de polimerizaÇço, para controlar uma reaÇço de polimerizaÇço contÍnua, mÉtodo contÍnuo para a polimerizaÇço de uma poliolefina e mÉtodo para a polimerizaÇço contÍnua de um ou mais polÍmeros de alfa-olefina
WO2006007046A3 (en) Methods for producing polymers with control over composition distribution
AU2003303550A8 (en) Bimetallic catalyst, method of polymerization and bimodal polyolefins therefrom
IL156643A0 (en) Method for treating a mineral filler with a polydialkyloxane and a fatty acid, resulting hydrophobic fillers and uses thereof in polymers for breathable films
ATE470548T1 (de) Systeme und verfahren zum herstellen von verbundbahnen mit strukturierten, diskreten polymerbereichen
AU2003242255A1 (en) Vinyl chloride copolymer resin for paste, composition, and process for producing resin
TW200502258A (en) Method to produce continuously the polymers from vinylic compounds through substance- or solvent-polymerization
DE60116490D1 (de) Heisssiegelbare polyethylenfolie und verfahren zu ihrer herstellung
WO2008019100A3 (en) Living radical polymerization of activated and nonactivated monomers containing electron-withdrawing side groups
BR0203612A (pt) Controle de polìmero por cocatalisador
AU2003251029A1 (en) Polymer obtained by means of controlled radical polymerisation comprising at least one boronate function, association thereof with a ligand compound and uses of same
BR0310023B1 (pt) dispersço de polÍmero solével em Água, mÉtodo de produÇço de uma dispersço de polÍmero solével em Água e utilizaÇço de uma dispersço de polÍmero solével em Água.
BR0212437A (pt) Método para preparação de poliolefinas
EP1921093A4 (en) SOLID CATALYST COMPONENTS FOR THE OLEIN POLYMERIZATION, CATALYST AND PROCESS FOR THE PREPARATION OF OLEFIN POLYMERS THEREWITH
WO2005028108A3 (en) Composite polymer microfluidic control device
WO2010049530A3 (en) Foamed pvc profiles with a high mineral filler content and their uses
WO2015175208A1 (en) System, method and apparatus for producing a multi-layer, annular microcapillary product
WO2008048934A3 (en) Multilayer thermoplastic film
CA2757801C (en) Production method of plastic pipe in layers
WO2008108790A3 (en) Method for forming flame-retardant clay-polyolefin composites
BRPI0621929A8 (pt) método para controlar um processo para produzir um polímero em pelo menos um reator e método para controlar um processo para produzir uma composição de polímero
FR2861398B1 (fr) Procede pur oxyder partiellement ou totalement une ou plusieurs extremites thiocarbonylthio d'un polymere issu d'une polymerisation radicalaire controlee par addition-fragmentation reversible
ATE364639T1 (de) Verfahren zur modifizierung rheologischer eigenschaften von ep(d)m-polymeren und ep(d)m- polymermischungen mit polyolefinen
WO2007075425A3 (en) Pvc compositions
WO2006118845A3 (en) Catalyst system for production of polyolefins

Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: UNIVATION TECHNOLOGIES, LLC (US)

Free format text: TRANSFERIDO DE: UNION CARBIDE CHEMICALS AND PLASTICS TECHNOLOGY CORPORATION

B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 28/07/2003, OBSERVADAS AS CONDICOES LEGAIS.