EP2247671A1 - Matériau comprenant des pores réglables qui contiennent des particules pouvant gonfler en présence d'eau - Google Patents

Matériau comprenant des pores réglables qui contiennent des particules pouvant gonfler en présence d'eau

Info

Publication number
EP2247671A1
EP2247671A1 EP09719517A EP09719517A EP2247671A1 EP 2247671 A1 EP2247671 A1 EP 2247671A1 EP 09719517 A EP09719517 A EP 09719517A EP 09719517 A EP09719517 A EP 09719517A EP 2247671 A1 EP2247671 A1 EP 2247671A1
Authority
EP
European Patent Office
Prior art keywords
particles
acid
composition according
water
copolymer
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.)
Withdrawn
Application number
EP09719517A
Other languages
German (de)
English (en)
Inventor
Peter Grochal
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.)
Sto SE and Co KGaA
Original Assignee
Sto SE and Co KGaA
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 Sto SE and Co KGaA filed Critical Sto SE and Co KGaA
Publication of EP2247671A1 publication Critical patent/EP2247671A1/fr
Withdrawn legal-status Critical Current

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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C09D7/69—Particle size larger than 1000 nm
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • 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
    • C04B2103/0045—Polymers chosen for their physico-chemical characteristics
    • C04B2103/0049—Water-swellable polymers
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482—Coating or impregnation materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/24—Homopolymers or copolymers of amides or imides
    • C08L33/26—Homopolymers or copolymers of acrylamide or methacrylamide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L39/00—Compositions of homopolymers or 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 single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions of derivatives of such polymers
    • C08L39/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member

Definitions

  • the present invention relates to a novel composition for coating of
  • the present invention relates to a novel composition for molding of building structures and their use.
  • Coatings have in principle the disadvantage that they are difficult to process and maintain and have a lack of water resistance.
  • outside and / or inside surfaces of buildings above all on an insulated exterior and / or interior surface of buildings, may under certain weather conditions (moist air, clear sky) come to water condensation due to subcooling of the surface.
  • Possible consequences are the tendency to fast pollution as well as vegetation with algae and fungi.
  • coatings or structures are desirable, which can absorb humidity or condensed water under certain conditions and prevent all the associated disadvantages. In dry periods, these coatings or structures should be open to vapor diffusion and be able to release the absorbed water as vapor back to the atmosphere.
  • Mineral coatings or building materials based on binders cement, gypsum, lime, water glass
  • binders cement, gypsum, lime, water glass
  • the coatings for exterior and / or interior surfaces of buildings and the building should be able to absorb condensed water, but in continuous rain, these coatings or the building should be dense, that is, no water in the underground. In dry weather, the Coatings or the building in turn have a very high vapor permeability.
  • the finding of the present invention is that it is necessary to add swellable particles to the mass for the coating of exterior and / or interior surfaces of buildings or the mass for structural elements, which can absorb and also release moisture.
  • the present invention is directed to a composition (a) for the coating of exterior and / or interior surfaces of buildings
  • (Coating composition) and / or (b) for forming building structures comprising: organic binders (A) and / or mineral binders (B) and particles (C), wherein the particles (C)
  • V q is the maximum volume of the particles (C) in the swollen state, the swelling being generated by deionized water, and
  • V t is the volume of particles (C) in the dry state before swelling.
  • the term "in the dry state” is to be understood as meaning that V t is the volume of the particles (C) before swelling, these particles being not more than 10% by weight, more preferably 5% by weight, (deionized) Contain water.
  • coating or “coating exterior and / or interior surfaces of structures” of the present invention is meant all layers adhering firmly to exterior and / or interior surfaces of buildings.
  • structural body is to be understood as meaning, in particular, the inner and outer walls of houses, but also panels for walls and / or ceiling cladding and bridge components.
  • composition according to the invention for coating exterior and / or interior surfaces of buildings or for shaping building structures is characterized in particular by the fact that the swellable particles can form pores in the coating and / or the structure which are capable of If necessary, take up water or leave it.
  • organically bound facade coatings are generally characterized by low water absorption and low water vapor permeability.
  • internal structures can be achieved by the composition of the invention, which are characterized by sufficient porosity.
  • the applied mass on outer and / or inner surfaces of buildings in the dry state or a building of this mass in the dry state is permeable to water vapor.
  • the water-swellable particles (C) the moisture through the pores and give this under favorable conditions by drying again.
  • the particles (C) When there is a high supply of water, as by rain, the particles (C) swell so much that they close the pore structure and seal the outer and / or inner surface of buildings or the building. Thus, no water can penetrate into the underground or deep into the building.
  • the organic binder (A) is selected from the group consisting of synthetic resin dispersions, silicones, organo-silicates and mixtures thereof.
  • the water standing in the water is absorbed by the pores and water-swellable particles (C) and released again in dry conditions.
  • the water-swellable particles (C) completely swell and seal the exterior and / or interior surfaces of buildings or the structure.
  • the mineral binders (B) are preferably selected from the group consisting of cement, gypsum, lime, water glass or mixtures thereof or
  • the mass - if it contains mineral binder - is hydrophobic.
  • the hydrophobing is preferably carried out by silicone products, fatty acids and salts of fatty acids or mixtures thereof.
  • composition for coating exterior and / or interior surfaces of buildings (coating composition) is the hitherto unresolved problem of highly elastic coatings, which have virtually no measurable vapor diffusion.
  • slightly water-swellable particles (C) as defined in the present invention by forming the cavities, one can produce high-elasticity coatings with good vapor diffusion which obviate the need to strip old layers. Accordingly, the present composition can also be used in particular for renovations.
  • the particles (C) are such that they can release water upon drying, d. H. the particles (C) can reversibly each release water as received.
  • the particles (C) in the non-swollen state i. H. in the dry state, preferably with a maximum of 20 wt .-%, more preferably 10 wt .-% even more preferably with a maximum of 5 wt .-% water, have a size of not more than 500 microns. It is desirable that the particle size is not more than 300 ⁇ m, more preferably not more than 200 ⁇ m. Preferred particle size ranges for the particles (C) are 0.2-500 microns, such as 3-500 microns, more preferably 0.2-300 microns, such as 5-300 microns, such as. B. 0.2 - 200 microns or 5 - 200 microns.
  • hydrophilic polymers (D) are crosslinked.
  • the hydrophilic polymers (D) are preferably selected from the group consisting of homopolymer of acrylic acid, copolymer of acrylic acid, homopolymer of methacrylic acid, copolymer of methacrylic acid, copolymer of acrylonitrile, copolymer of acrylamide, homopolymer of itaconic acid, copolymer of itaconic acid, copolymer of maleic acid Copolymer of maleic anhydride, copolymer of fumaric acid, homopolymer of vinylsulfonic acid, copolymer of Vinylsulfonic acid, homopolymer of acrylamido-2-methylpropanesulfonic acid, copolymer of acrylamido-2-methylpropanesulfonic acid, homopolymer of styrenesulfonic acid, copolymer of
  • polymers of acrylamido-2-methylpropanesulfonic acid and vinylsulfonic acid are used.
  • the comonomers used are preferably amides, alkyl esters or hydroxyalkyl esters of the abovementioned acids.
  • hydrophilic polymers (D) which comprise acid groups, the acid groups to 1 - 100%, in particular from 90 to 99.9%, are neutralized by alkali or amino groups. If the hydrophilic polymer is crosslinked, organic and / or inorganic crosslinkers are preferably used. Particularly preferred for the preparation of the hydrophilic polymers (D) are polyfunctional monomers, such as acrylic or methacrylic esters of polyhydric alcohols, such as glycols, glycerol, pentaerythritol, or divinylbenzene.
  • hydrophilic polymers (D) are cationic polymers.
  • Particles (C) of such water-swellable polymers are very sensitive to humidity and can preferably be used to regulate the relative humidity in the interior.
  • Suitable monomers for such cationic polymers have been found to be monomers having polymerizable double bonds and tertiary and quaternary amino groups.
  • the monomers are selected from the A group consisting of (2-methacryloyloxyethyl) trimethylammonium chloride, 2- (methacryloyloxy) ethyltriammonium chloride,
  • Vinylpyrrolidone N-vinylacetamide, N-vinylformamide and N-vinylpiperidone.
  • Non-quaternized or protonated monomers can be subsequently quaternized or protonated in the resulting polymer.
  • a further advantage of the present invention is that the particles (C) are present as powder in the case of mineral masses and do not swell until they are mixed with water to their maximum size.
  • the coatings or mortars can be processed by hand or by machine and also structured or smoothed. After curing (setting of the binder (B) such as cement, lime, gypsum or
  • the inner pore structure forms by water release and simultaneous shrinkage of the particles (C).
  • a major advantage of this method over the prior art is that the pore structure forms only after processing and drying and is not destroyed or vented by smoothing or structuring.
  • this method can be produced by the variation of the particle size, the degree of crosslinking and the swellability of the particles (C) defined porous body or coatings.
  • the pore structure can be conveniently adapted to the requirements by the size, swellability and added amount of particles (C).
  • the pore structure should be chosen so that after drying the coating and / or the structure forms a compact layer.
  • the admixed particles (C) have already swelled independently in the entire mixture.
  • the coatings and / or the structures can be structured or smoothed. After evaporation of the free water, they solidify. Thereafter, the water bound in the swollen particles (C) is then released, which again produces a porosity.
  • the ratio between the base polymer of the particles C and the crosslinker should preferably be chosen so that the swelling in the water does not exceed 10 times the volume increase.
  • the preparation of the hydrophilic polymers (D) can be carried out free-radically or ionically in solution, emulsion or suspension or in bulk and be carried out batchwise or continuously.
  • a radical emulsion or suspension or in bulk and be carried out batchwise or continuously.
  • Emulsion polymerization as usual suitable emulsifiers (ionic or non-ionic) and initiators such as persulfates, peroxides or azo compounds are used. If required, redox initiators such as e.g. Use ascorbic acid or others.
  • Water in oil emulsion polymerization can be used.
  • ionic emulsifiers serve alkali salts of fatty acids, alkyl sulfates, alkyl sulfonates and their derivatives.
  • nonionic emulsifiers can be used as reaction products of ethylene oxide or propylene oxide with fatty alcohols or alkylphenols.
  • Another production method would be an aqueous secondary dispersion. The preparation of aqueous secondary dispersions is known in the art and z. As described in DE 3720860.
  • the finished polymers or copolymers are isolated depending on the production method, dried and ground as needed.
  • the present composition may further comprise conventional particles (E), e.g. Pigments, fillers, thickeners and other common auxiliaries.
  • E conventional particles
  • Pigments e.g. Pigments, fillers, thickeners and other common auxiliaries.
  • the present invention is directed to the preparation of limited swellable particles (C) in water and the use thereof for the production of various
  • the present invention also claims coatings and structures containing the composition of the invention.
  • the present invention is directed to coatings and structures containing at least 80 wt .-%, more preferably at least 9O.-wt .-%, in particular about 100 wt .-%, the composition of the invention.
  • the present invention is directed to the use of the particles (C) in coatings and / or building structures for the regulation of Water vapor permeability of the coatings and / or building, to regulate relative humidity indoors, to avoid water condensation on surfaces and to regulate reverberation and / or sound absorption.
  • the swelling and drying, ie the change in volume of the particles (C) is a reversible process and thereby regulatively intervenes and thus moisture on or to give or to muffle sound.
  • the reaction flask is purged with N 2 and 100 g of petroleum ether (Sp. 60 - 80 0 C) submitted. With vigorous stirring, a mixture of 30 g AMPS-NaSaIz 50% in H 2 O, 20 g H 2 O, 0.5 g Kaliumdisulf ⁇ d, 0.75 g sodium lauryl sulfate, 0.5 g sodium peroxodisulfate and for varying the degree of crosslinking optionally 0, 0, 0.2, 0.3, 0.5, 1, 2, 3, 5, 10 wt .-% Glyzerindimethacrylat added.
  • the degree of crosslinking optionally 0, 0, 0.2, 0.3, 0.5, 1, 2, 3, 5, 10 wt .-% Glyzerindimethacrylat added.
  • the reaction flask is purged with N 2 and 150 g of petroleum ether (pp pp 60 - 80 0 C) submitted. With vigorous stirring, a mixture of 30 g MTAC (75% in H 2 O), 45 g H 2 O, 0.75 potassium disulfide, 1.125 g sodium lauryl sulfate, 0.75 sodium peroxodisulfate and for varying the degree of crosslinking optionally 0.1, 0.2, 0.3, 0.5, 1, 2, 3, 5, 10 wt .-% Glyzerindimethacrylat added. The temperature is raised to 60 0 C. After 4 hours, the polymerization is stopped and the petroleum ether is removed on a rotary evaporator. The polymer is diluted with water and precipitated in acetone. Subsequently, the polymer is filtered off, dried and ground.
  • Gypsum specimens were provided with particles (C) and broken after hardening.
  • the particles (C) were placed in the mixing water.
  • Defoamer 1% Agitan 280 or 1% Byk 031 was mixed in order to exclude pore formation by ev. Foaming.
  • Figures 1 to 5 show the different porosity of the fracture surfaces of pure gypsum as standard and the mixtures with particles (C).
  • the vapor diffusion is increased fourfold in the Acronal S 290 by the addition of 1 wt .-% AMPS Na-SaIz polymer with 3 wt .-% crosslinker, in the Mowilith LDM 1871 two times.
  • Sample thickness plaster without additional 15 mm, plaster with additional 15 mm
  • Measuring conditions air cavity 60 mm 125 - 5000 Hz

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Paints Or Removers (AREA)

Abstract

La présente invention concerne un matériau de revêtement destiné à des surfaces extérieures et/ou intérieures de bâtiments ou un matériau conçu pour produire des corps, lequel matériau comprend des liants organiques (A) et/ou des minéraux (B), ainsi que des particules (C) • qui ont la propriété de gonfler en présence d'eau • et qui satisfont le rapport Vq/Vt ≤ 20 avec Vq correspondant au volume maximal des particules (C) à l'état gonflé, le gonflement ayant été assuré par de l'eau désionisée, et Vt correspondant au volume des particules (C) à l'état sec avant gonflement.
EP09719517A 2008-02-26 2009-02-18 Matériau comprenant des pores réglables qui contiennent des particules pouvant gonfler en présence d'eau Withdrawn EP2247671A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008011234 2008-02-26
PCT/EP2009/051887 WO2009112331A1 (fr) 2008-02-26 2009-02-18 Matériau comprenant des pores réglables qui contiennent des particules pouvant gonfler en présence d'eau

Publications (1)

Publication Number Publication Date
EP2247671A1 true EP2247671A1 (fr) 2010-11-10

Family

ID=40626570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09719517A Withdrawn EP2247671A1 (fr) 2008-02-26 2009-02-18 Matériau comprenant des pores réglables qui contiennent des particules pouvant gonfler en présence d'eau

Country Status (2)

Country Link
EP (1) EP2247671A1 (fr)
WO (1) WO2009112331A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9156933B2 (en) * 2011-09-13 2015-10-13 General Electric Company Cation exchange materials prepared in aqueous media
DE102019121084A1 (de) * 2019-08-05 2021-02-11 Umicore Ag & Co. Kg Katalysatorsubstrate mit poröser Beschichtung
CN117363111B (zh) * 2023-11-02 2025-05-06 中路高科交通检测检验认证有限公司 一种长寿命超疏水复合涂层及其制备方法

Citations (1)

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WO2008151878A1 (fr) * 2007-06-14 2008-12-18 Construction Research & Technology Gmbh Mélanges secs de matériaux de construction trempés et revenus par polymères

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DE19506287A1 (de) * 1995-02-23 1996-08-29 Basf Ag Agglomerierte Polymerteilchen aus wasserquellbaren Polymerisaten, Verfahren zu ihrer Herstellung und ihre Verwendung
DE19630949C2 (de) * 1996-07-31 2000-08-24 Murjahn Amphibolin Werke Akustikputz
JPH10245278A (ja) * 1997-02-28 1998-09-14 Taguchi Takashi 多孔質セラミック塊状体の製造方法
JP2001089655A (ja) * 1999-09-27 2001-04-03 Toyobo Co Ltd 透湿膜用樹脂組成物
DE10314599A1 (de) * 2003-03-31 2004-10-21 Mang, Thomas, Prof. Dr. Verwendung einer vernetzten Polymerzusammensetzung als wasseraufnehmende Komponente in Dichtungs- und Absorptionsmaterialien

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WO2008151878A1 (fr) * 2007-06-14 2008-12-18 Construction Research & Technology Gmbh Mélanges secs de matériaux de construction trempés et revenus par polymères

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ANONYMOUS: "= Registered trademark of BASF Soluble polyvinylpyrrolidone for the pharmaceutical industry Soluble Kollidon grades Contents", 1 May 2013 (2013-05-01), pages 1 - 12, XP055126809, Retrieved from the Internet <URL:http://www.pharma-ingredients.basf.com/Statements/Technical Informations/EN/Pharma Solutions/03_030730e_Soluble Kollidon grades.pdf> [retrieved on 20140703] *
MARKUS FRANK: "Superabsorbents", 1 January 2005, ULLMANN'S ENCYCLOPEDIA OF INDUSTRIAL CHEMISTRY, JOHN WILEY & SONS, INC, PAGE(S) 1 - 21, XP007914266 *
See also references of WO2009112331A1 *

Also Published As

Publication number Publication date
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