WO2010076091A2 - Wasserfrei herstellbare polymerisationsmischung - Google Patents
Wasserfrei herstellbare polymerisationsmischung Download PDFInfo
- Publication number
- WO2010076091A2 WO2010076091A2 PCT/EP2009/065784 EP2009065784W WO2010076091A2 WO 2010076091 A2 WO2010076091 A2 WO 2010076091A2 EP 2009065784 W EP2009065784 W EP 2009065784W WO 2010076091 A2 WO2010076091 A2 WO 2010076091A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radical polymerization
- derivative
- vinyloxyalkyl
- copolymer
- different
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
- C04B24/2647—Polyacrylates; Polymethacrylates containing polyether side chains
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2664—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of ethylenically unsaturated dicarboxylic acid polymers, e.g. maleic anhydride copolymers
- C04B24/267—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of ethylenically unsaturated dicarboxylic acid polymers, e.g. maleic anhydride copolymers containing polyether side chains
-
- 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
- C08F216/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
- C08F216/12—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by an ether radical
- C08F216/14—Monomers containing only one unsaturated aliphatic radical
- C08F216/1416—Monomers containing oxygen in addition to the ether oxygen, e.g. allyl glycidyl ether
- C08F216/1425—Monomers containing side chains of polyether groups
- C08F216/1433—Monomers containing side chains of polyethylene oxide groups
-
- 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
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/04—Anhydrides, e.g. cyclic anhydrides
- C08F222/06—Maleic anhydride
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/32—Superplasticisers
Definitions
- the present invention relates to a process for producing a copolymerization polymerization mixture, the copolymerization polymerization mixture and their use.
- aqueous slurries of powdered inorganic see or organic substances such as clays, silicate, chalk, carbon black, rock flour and hydraulic binders to improve their processability, d. H. Kneadability, spreadability, sprayability, pumpability or flowability, often added additives in the form of dispersants.
- additives are able to break up solid agglomerates, to disperse the particles formed and thus to improve the processability.
- This effect is also exploited specifically in the production of building material mixtures containing hydraulic binders such as cement, lime, gypsum or anhydrite.
- additives are used which are generally referred to as water reducers or flow agents.
- water reducers or flow agents in particular copolymers are used in practice, which are prepared by free-radical copolymerization of acid monomers with Polyethermakromonomeren.
- WO 2005/075529 describes copolymers synthesized in aqueous solution which, in addition to acid monomer structural units, have vinyloxypoly (ethylene glycol) structural units as polyether macromonomer structural units.
- Aqueous solutions containing such types of copolymers are widely used as high performance flow agents because of their excellent application properties.
- the object underlying the present invention is therefore to provide an economical process for the preparation of copolymers which show good properties as dispersants for hydraulic binders, especially as flow agents.
- the solution to this problem is a process for preparing a copolymerized polymerization mixture in which a Vinyloxyalkylpolyetherderivat is reacted with an acid monomer derivative to form the copolymer in the presence of a radical polymerization initiator by free radical polymerization, wherein the free radical polymerization proceeds in a medium which less than 25 wt. % By volume of water and in total more than 60% by weight of copolymer, vinyloxyalkyl polyether derivative and acid monomer derivative, the molar ratio of acid monomer derivative used to vinyloxyalkyl polyether derivative used is 20: 1 to 1: 1 and vinyloxyalkyl polyether derivative is present according to general formula (I)
- H 2 C CH-O- (AO)
- a -R A is identical or different to R A and is represented by -CH 2 -C (CH 2 ) 2 -OH, a linear or branched C 1 -C 2 alkyl group, Cs cycloalkyl, phenyl or C7-Ci2 arylalkyl,
- a is the same or different and represented by an integer from 5 to 350,
- the molar ratio of vinyloxyalkyl polyether derivative used to the radical polymerization initiator used is 2 to 100, and the vinyloxyalkylpolyether derivative used is provided in such a form that 0.1 to 10 000 ppm of a stabilizer present as organic compound is added to the vinyloxyalkylpolyether derivative used the oxidative decomposition of alkoxy groups present in polyethers and / or the Vinyloxyalkylpolyetherderivat used is enriched in deoxygenation of dissolved oxygen with dissolved nitrogen.
- Acid monomer derivatives according to the present invention are present either as acidomer anhydrides or, alternatively, as acid monomer esters. However, according to mixtures of these can be used as sawuremonomerderivat.
- the acid monomer derivatives according to the invention are free-radically copolymerizable monomers having at least one carbon double bond and which can be converted by hydrolysis or alkaline saponification into an acid monomer containing at least one acid function. If acid monomer esters (carboxylic acid esters) are used as the acid monomer derivative, neutral structural units are obtained in the copolymer which can be alkaline-saponified (eg in the concrete).
- ester group Only during use, the negative charges required for the effect are thus produced (the cleavable under alkaline conditions ester group then acts practically as a kind of protecting group for the carboxylic acid function).
- acid monomer anhydrides such as maleic anhydride, hydrolyze as soon as they come into contact with water.
- Enriching with dissolved nitrogen by depletion of dissolved oxygen means that the proportion of dissolved oxygen is reduced and the proportion of dissolved nitrogen is increased.
- the polymerization mixture having the copolymer obtainable by the process of the present invention is a high quality dispersant which can be produced with a high space-time yield due to the low water content.
- the storage and transport costs are correspondingly low.
- the copolymerization mixture comprising copolymer obtainable by the process according to the invention is normally particularly readily soluble in water, ie also in aqueous binder systems.
- the quality of the resulting process product as a dispersant or flow agent is excellent.
- the process according to the invention produces a quality product in a particularly economical manner.
- the acid monomer derivative used is maleic anhydride (as an acid monomer anhydride), esters of methacrylic acid, esters of maleic acid and / or esters of acrylic acid, preferably maleic anhydride, methyl acrylate, ethyl acrylate, n-butyl acrylate, and / or 2-ethylhexyl acrylate ,
- n-propyl acrylate, isopropyl acrylate, methyl methacrylate and / or ethyl methacrylate can also be used.
- the temperature in the medium in which the radical polymerization takes place during the free radical polymerization is between 40 and 140 ° C., preferably between 70 and 100 ° C.
- the radical polymerization initiator is usually present as an azo compound, as a peroxide, as a persulfate or as a hydrazone, with azo compounds being generally preferred.
- a radical polymerization initiator it is possible in particular to use different azo initiators, which each have different decomposition temperatures.
- the free-radical polymerization takes place in a medium which contains less than 5% by weight of water and, in its entirety, more than 80% by weight of copolymer, vinyloxyalkyl polyether derivative and acid monomer derivative.
- R A is present as methyl group.
- the corresponding monomer is obtainable by vinylation (addition to acetylene) of methyl polyethylene glycol.
- R A is present as -CH 2 -C (CH 3) 2 -OH.
- the corresponding monomer can be obtained inexpensively by terminating the alkoxylation of ether macromonomers with isobutylene oxide.
- a is preferably represented by an integer of 8-200.
- a chain regulator which is preferably present as a mercapto compound, is used.
- the medium in which the free-radical polymerization takes place contains less than 3% by weight, preferably less than 1% by weight, of water. It would be optimal to work in the absolutely anhydrous state, but the associated drying of the corresponding starting components would be quite expensive.
- the vinyloxyalkyl polyether derivative used is provided in the form of adding from 1 ppm to 1000 ppm of an organic compound stabilizer useful in inhibiting the oxidative decomposition of alkoxy groups present in polyethers to the vinyloxyalkyl polyether derivative employed.
- Suitable stabilizers are often selected from diphenylamine derivatives such as diphenylamine per se, polymeric trimethyldihydroquinoline, alkylated monophenols such as 2,6-di-tert-butyl-4-methylphenol alkylated hydroquinones such as 2,6-di-tert-butyl-4-methoxyphenol, phenols alkylidene-up, such as 2,2 'methylene-bis (6- tert -butyl-4-methylphenol), phenolic benzyl compounds such as 1, 3,5-tri- (3,5-di-tert-butyl-4-hydroxybenzyl) -2,4,6-trimethylbenzene, thioethers, such as 2,2'-thiobis (6-tert-butyl-4-methylphenol), or amines such as phenothiazine.
- diphenylamine derivatives such as diphenylamine per se, polymeric trimethyldihydroquinoline
- alkylated monophenols such
- the depletion of dissolved oxygen with dissolved nitrogen is usually carried out by introducing nitrogen into the corresponding oxygen-containing liquid, so that the oxygen contained is displaced by nitrogen.
- the depletion of oxygen with the accumulation of nitrogen causes a repression of the oxidative decomposition of alkoxy groups present in polyethers.
- the vinyloxyalkylpolyetherderivat used is enriched in such a way under deoxygenation of dissolved oxygen with dissolved nitrogen that the vinyloxyalkyl polyether derivative used dissolved nitrogen to dissolved oxygen in a molar ratio greater than 10, preferably greater than 30 having.
- the invention furthermore relates to a copolymerization-containing polymerization mixture which can be prepared by the process described above.
- the invention relates to the use of the copolymer having polymerization mixture as flow agents for hydraulic binders, in particular for cement or gypsum and / or as flow agents for latent hydraulic binder.
- the copolymerization-containing polymerization mixture can also be used, for example, as an additive for cement production (grinding aid and "water reducer" for pure Portland cements or composite cements).
- a heated reaction vessel equipped with a thermometer, stirrer and a heated dropping funnel 150 g (0.15 mol) of methyl polyethylene glycol 1000 monovinyl ether containing 300 ppm butylhydroxitoluene (BHT) as an antioxidant, presented and heated to 90 0 C. By bubbling nitrogen through a bottom valve, the reactor is rendered inert during the heating phase.
- BHT butylhydroxitoluene
- Dispersant according to Example 0.54 g ( 0.20 mass% solids based on cement) mixing water as needed
- the mortar mixtures were prepared in accordance with DIN EN 196-1, section 6.3. To assess the flow behavior, the slump of the mortar was measured after 15 strokes on the shock table.
- the table shows that in terms of slump the compared products are about equally good and each meet the requirements of a high-quality high-performance fluid.
- the initiator solution After the end of feeding the initiator solution is allowed to stir for 1 h at 90 0 C. After cooling to room temperature, 17 g of copolymer are obtained in the form of a light orange-colored, viscous liquid.
- the weight-average molecular weight which is determined by gel permeation chromatography using polyethylene glycol as a standard, is 24500 g / mol.
- the products of Synthesis Examples 1 to 5 are each high-quality dispersants or flow agents for hydraulic binders.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Engineering (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Polymerisation Methods In General (AREA)
Abstract
Description
Claims
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX2011006101A MX2011006101A (es) | 2008-12-08 | 2009-11-25 | Mezcla de polimerizacion que se puede producir sin agua. |
| CA2745061A CA2745061A1 (en) | 2008-12-08 | 2009-11-25 | Polymerization mixture that can be produced without water |
| EP09765068.3A EP2373706B1 (de) | 2008-12-08 | 2009-11-25 | Wasserfrei herstellbare polymerisationsmischung |
| BRPI0922672A BRPI0922672A2 (pt) | 2008-12-08 | 2009-11-25 | mistura de polimerização preparável sob condições anidras |
| US13/132,954 US8653162B2 (en) | 2008-12-08 | 2009-11-25 | Polymerization mixture that can be produced without water |
| ES09765068.3T ES2589963T3 (es) | 2008-12-08 | 2009-11-25 | Mezcla de polimerización que puede ser elaborada sin agua |
| CN200980148977.5A CN102239191B (zh) | 2008-12-08 | 2009-11-25 | 可在无水条件下制备的聚合混合物 |
| JP2011539998A JP2012511092A (ja) | 2008-12-08 | 2009-11-25 | 水なしで製造可能な重合混合物 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08170959.4 | 2008-12-08 | ||
| EP08170959 | 2008-12-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2010076091A2 true WO2010076091A2 (de) | 2010-07-08 |
| WO2010076091A3 WO2010076091A3 (de) | 2011-02-24 |
Family
ID=42310254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2009/065784 Ceased WO2010076091A2 (de) | 2008-12-08 | 2009-11-25 | Wasserfrei herstellbare polymerisationsmischung |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US8653162B2 (de) |
| EP (1) | EP2373706B1 (de) |
| JP (1) | JP2012511092A (de) |
| CN (1) | CN102239191B (de) |
| BR (1) | BRPI0922672A2 (de) |
| CA (1) | CA2745061A1 (de) |
| ES (1) | ES2589963T3 (de) |
| MX (1) | MX2011006101A (de) |
| SA (1) | SA109300731B1 (de) |
| WO (1) | WO2010076091A2 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627743A (zh) * | 2012-03-29 | 2012-08-08 | 上海市建筑科学研究院(集团)有限公司 | 一种高固含量聚羧酸减水剂的制备方法 |
| JP6339819B2 (ja) * | 2013-03-21 | 2018-06-06 | 株式会社日本触媒 | 水硬性組成物に用いる添加剤 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0848852A (ja) * | 1994-06-01 | 1996-02-20 | Denki Kagaku Kogyo Kk | セメント分散剤 |
| DE19513126A1 (de) * | 1995-04-07 | 1996-10-10 | Sueddeutsche Kalkstickstoff | Copolymere auf Basis von Oxyalkylenglykol-Alkenylethern und ungesättigten Dicarbonsäure-Derivaten |
| DE19843730A1 (de) * | 1998-09-24 | 2000-03-30 | Sueddeutsche Kalkstickstoff | Stabilisierte, wasserlösliche Polymerpulver auf Basis von Polyoxyalkylenglykol-Carboxylaten und Verfahren zu deren Herstellung |
| JP2002128554A (ja) * | 2000-10-24 | 2002-05-09 | Denki Kagaku Kogyo Kk | アルミナセメント分散剤 |
| US6762325B2 (en) * | 2001-05-16 | 2004-07-13 | Nippon Shokubai Co., Ltd. | Method for production of alkoxylated compound |
| JP2005154639A (ja) * | 2003-11-27 | 2005-06-16 | Asahi Glass Co Ltd | ポリエーテル類の貯蔵方法 |
| DE102004005434A1 (de) * | 2004-02-04 | 2005-08-25 | Construction Research & Technology Gmbh | Copolymere auf Basis von ungesättigten Mono- oder Dicarbonsäure-Derivaten und Oxyalkylenglykol-Alkenylethern, Verfahren zu deren Herstellung und ihre Verwendung |
| CN1919887A (zh) * | 2005-08-26 | 2007-02-28 | 建筑技术研究有限公司 | 用作水悬浮体添加剂的共聚物及其生产方法 |
| CN1919922A (zh) * | 2005-08-26 | 2007-02-28 | 建筑技术研究有限公司 | 稳定的水溶性聚合物粉末及其制备方法 |
| ES2398125T3 (es) * | 2006-03-30 | 2013-03-13 | Rhodia, Inc. | Tensioactivos reactivos y su uso en emulsiones y dispersiones |
-
2009
- 2009-11-25 BR BRPI0922672A patent/BRPI0922672A2/pt not_active IP Right Cessation
- 2009-11-25 MX MX2011006101A patent/MX2011006101A/es active IP Right Grant
- 2009-11-25 WO PCT/EP2009/065784 patent/WO2010076091A2/de not_active Ceased
- 2009-11-25 US US13/132,954 patent/US8653162B2/en not_active Expired - Fee Related
- 2009-11-25 CN CN200980148977.5A patent/CN102239191B/zh not_active Expired - Fee Related
- 2009-11-25 EP EP09765068.3A patent/EP2373706B1/de not_active Not-in-force
- 2009-11-25 JP JP2011539998A patent/JP2012511092A/ja active Pending
- 2009-11-25 ES ES09765068.3T patent/ES2589963T3/es active Active
- 2009-11-25 CA CA2745061A patent/CA2745061A1/en not_active Abandoned
- 2009-12-07 SA SA109300731A patent/SA109300731B1/ar unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US20110294923A1 (en) | 2011-12-01 |
| MX2011006101A (es) | 2011-06-24 |
| BRPI0922672A2 (pt) | 2016-01-05 |
| CA2745061A1 (en) | 2010-07-08 |
| CN102239191B (zh) | 2014-05-07 |
| US8653162B2 (en) | 2014-02-18 |
| CN102239191A (zh) | 2011-11-09 |
| JP2012511092A (ja) | 2012-05-17 |
| EP2373706A2 (de) | 2011-10-12 |
| SA109300731B1 (ar) | 2014-05-01 |
| EP2373706B1 (de) | 2016-06-08 |
| WO2010076091A3 (de) | 2011-02-24 |
| ES2589963T3 (es) | 2016-11-17 |
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