US20090194004A1 - O/W wax dispersions and plaster products obtainable from them - Google Patents

O/W wax dispersions and plaster products obtainable from them Download PDF

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Publication number
US20090194004A1
US20090194004A1 US11/989,259 US98925906A US2009194004A1 US 20090194004 A1 US20090194004 A1 US 20090194004A1 US 98925906 A US98925906 A US 98925906A US 2009194004 A1 US2009194004 A1 US 2009194004A1
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wax
phase
wax dispersion
dispersion according
gypsum
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Gernot Meyer
Thomas Haas
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Priority to US13/644,560 priority Critical patent/US8741056B2/en
Priority to US14/274,274 priority patent/US9981874B2/en
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    • 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
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • 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
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/02—Cellulosic materials
    • 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
    • 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
    • C04B24/08—Fats; Fatty oils; Ester type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
    • 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
    • C04B24/2611—Polyalkenes
    • 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
    • C04B24/34—Natural resins, e.g. rosin
    • 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
    • C04B28/14—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 calcium sulfate cements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
    • C08L91/06—Waxes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
    • C08L91/06—Waxes
    • C08L91/08—Mineral waxes
    • 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
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/65—Water proofers or repellants
    • 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
    • C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
    • C04B2111/1006—Absence of well-defined organic compounds
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof

Definitions

  • the invention relates to aqueous compounds containing waxes and gypsum products that can be manufactured from these, particularly aerated gypsum and plasterboard.
  • Gypsum is calcium sulphate that can be present with and without crystallisation water.
  • Naturally occurring gypsum rock is calcium sulphate dihydrate (CaSO 4 ⁇ 2H 2 O); the anhydrous form of calcium, sulphate is frequently referred to as anhydrite (CaSO 4 ).
  • CaSO 4 calcium sulphate dihydrate
  • anhydrite CaSO 4
  • “gypsum” refers to naturally occurring gypsum rock, the corresponding products of industrial processes and also the products obtained during the burning of these raw materials.
  • Gypsum is ideally suited as a construction and working material, due to the fact that it is easy to dehydrate (dehydration (1)). Dehydration is a reversible process. Exposure to energy drives some or all of the crystallisation water out of the calcium sulphate dihydrate. The reverse reaction after water is added (rehydration (2)) causes the previously burned, i.e. at least partially dehydrated gypsum, to become solid, forming a crystalline structure.
  • Naturally occurring gypsum varies in terms of its purity. Natural impurities include, e.g. limestone (e.g. muscovite or dolomite CaCO 3 ⁇ MgCO 3 ), marl, mineral clay (e.g. montinorillonite or caolinite), and occasionally also sand, bitumen or a variety of salts.
  • gypsum is also accessible from various technical processes. For example, flue-gas or REA gypsum with a high degree of purity is produced during the desulphurisation of flue gases.
  • Gypsum plasterboards are industrially manufactured building boards essentially made up of gypsum, the surfaces and possibly also the longitudinal edges of which are surrounded by firmly adhered paperboard to suit the application.
  • the gypsum core surrounded by paperboard may contain air spaces and additives to achieve given properties.
  • GKB gypsum plasterboard
  • GKBI impregnated gypsum plasterboard
  • GKFI fire-resistant gypsum plasterboard
  • Gypsum plasterboard is made from gypsum and additives for the gypsum core, as well as high-grade, repeatedly couched paperboard on large belt systems running continuously. Plaster of Paris (low-fired gypsum, produced at temperatures of roughly 120° C. to 180° C.) is frequently used.
  • the production process comprises the following steps:
  • gypsum wallboards made from gypsum
  • gypsum wallboards These are factory-made building panels made from plaster of Paris and water for non-weight-bearing structural components.
  • Gypsum wallboards may contain fibres, fillers and additive substances, as well as other additives, and they may be coloured with pigments to distinguish them visually. They have smooth visible surfaces and are designed with alternating tongue and groove finishes on the abutting and storage surfaces.
  • water-repellent boards are known.
  • Board production takes place in largely automated production plants. Uniform, runny slurry is made from plaster of Paris, water and possibly additives in a dosage and mixing apparatus and used to fill the moulding boxes of the gypsum plasterboard machine. Once the mixture has set, the boards are ejected hydraulically and transported to the dryer. This is followed by drying in heated continuous driers. After drying, the boards are combined into packages or loaded onto pallets.
  • Gypsum fibre boards are furthermore referred to as gypsum-based plasterboard.
  • gas formers propellants
  • the gas formers mainly comprise several material components in which a chemical reaction is activated by the water coupled with the creation of a gas. The resulting gas bubbles force the gypsum slurry up in the mould.
  • Foam is mainly produced by atomising water and air enriched with surface-active substances (surfactants).
  • aerated gypsum elements produced using the aforementioned method are additionally water-repellent. This involves water-repellent additives being added to the mixer in the mixture preparation phase.
  • Gypsum products are provided with additives that delay water absorption, for use in damp areas.
  • the impregnating additives are usually added to the gypsum mixture before the gypsum products are made and worked into it uniformly, after which the gypsum mixtures are usually dried in layers at a high temperature of e.g. 100 to 150° C. and then cooled. If the gypsum boards are covered with paperboard, they are referred to as gypsum plasterboards.
  • the effect of dampness can cause the paperboard to soften, leading to deformation.
  • the use of gypsum plasterboard in damp rooms, such as bathrooms, laundry rooms, etc. is therefore problematic due to its diminishing rigidity and deformation. This has particularly serious effects when the gypsum plasterboard has ceramic tiles adhered to it, for example.
  • the dampness causes the paperboard to soften, lose its inner rigidity and split under the weight of the ceramic tiles, causing the layer of paperboard attached to the boards to fall away. The destruction of the remaining gypsum paperboard is then only a matter of time.
  • U.S. Pat. No. 3,935,021 describes a gypsum wallboard in which polyvinyl alcohol and a wax-asphalt emulsion are introduced into the gypsum core.
  • Wax-asphalt emulsions are widely used in gypsum wallboards, although certain disadvantages are associated with their use.
  • an aqueous emulsion is used to make gypsum products water-repellent, which comprises a hydrocarbon wax, a montan wax and an emulsifier/stabiliser system with the addition of polyvinyl alcohol.
  • WO 98/09.925 describes an aerated gypsum product, which is made water-repellent through the inclusion of an aqueous emulsion, which comprises a hydrocarbon wax, a montan wax and a colloid-stabilised emulsifier system.
  • aqueous wax dispersions for making gypsum products water-repellent which contain starch, long-chain alkyl phenols, saponified montan waxes, surfactant, complexing agents and paraffin waxes are known from U.S. Pat. No. 6,585,820.
  • U.S. Pat. No. 6,595,553 also mentions surfactant, montan wax and paraffin wax as an integral part of the aqueous wax dispersion.
  • the problem addressed by the present invention is that of finding a water-repelling agent that is suitable for both traditional gypsum plasterboard and also for the technically more complex production of aerated gypsum.
  • a further problem facing the invention is that of guaranteeing sufficient vapour permeability, despite the water-repellent nature.
  • the wax additive must improve the flow performance of the gypsum mixture, bring about a slight change in the reinforcing behaviour of the gypsum, cause a significant improvement in the paperboard adhesion and have a very slight effect on foaming in the process.
  • montan waxes a small number of hydrocarbons are contained in montan waxes, but not unsubstantial proportions of montan resins and asphalt substances, whereby the latter contain a not unsubstantial proportion of inorganic ash components (0.4 to 4% by wt.).
  • Montan resins and ash components may affect the colour if, for example, a particularly light-coloured gypsum is required when the material is used in visible construction work.
  • the hydrocarbon chains in the wax acids and wax alcohols have a chain length of 20 to 34 C units with a maximum of around 30 C units. In this case, the focus lies on chains with a straight-line number of carbon atoms.
  • paraffin Apart from paraffin, longer-chain alphaolefins (hydrogenated and/or not hydrogenated) and Fischer-Tropsch waxes can also be used as the basic wax phase. Also capable of being used in the composition are natural waxes, fats, fatty alcohols and synthetic and synthetically modified natural resin components.
  • the O/W wax dispersion according to the invention for use in gypsum products consist of:
  • gypsum compositions as described above, containing wax dispersions and the use of wax dispersions in such gypsum compounds or else the gypsum products described above.
  • Substances that can be used as aliphatic hydrocarbons according to the invention are paraffin, synthetic Fischer-Tropsch waxes and alphaolefins (AO, hydrogenated and not hydrogenated) with a solidification point of over 50° C. and below 95° C. and, particularly, with average C chain lengths greater than 25 in each case.
  • Polar compounds within the meaning of the present invention are compounds displaying hydrocarbon chains with per molecule over 18 C atoms and at least one hydroxyl group, an ether group and/or a carboxyl group (—C( ⁇ O)O—), possibly also derivated, i.e. esterified or saponified.
  • the polar compounds preferably display no more than three of the aforementioned groups or a total of three polar groups, particularly one or two groups, per molecule overall.
  • the polar compounds may be oxidised and possibly also partially saponified Fisher-Tropsch waxes, oxidised paraffin, oxidised polyethylene, so-called PE wax esters (jointly referred to as oxidised hydrocarbons (HC) or partially saponified oxidised HC's) and modified natural and/or synthetic resins, as well as natural waxes such as beeswax and, in particular, carnauba wax.
  • fats triglycerides
  • the acid groups contained in the polar additives may be saponified during the course of the wax dispersion production with the aid of alkaline substances (e.g.
  • colophonium resins such as glycerine and/or pentaerythrite maleic acid colophonium resins, preferably combined particularly with oxidised HC's and/or partially saponified oxidised HC's are also suitable.
  • the wax dispersion prefferably contains carnauba wax as a constituent part of the polar compounds, particularly at 1 to 20% by wt., particularly 1 to 15% by wt., relative to the wax phase.
  • polar compounds which contain as polar compounds the above oxidised hydrocarbons (HC) or partially saponified, oxidised HC's (greater than 1% by wt.) and carnauba wax (greater than 1% by wt.) or the above oxidised hydrocarbons (HC) or partially saponified, oxidised HC's (greater than 1% by wt.) and the above synthetically modified colophonium resins or aliphatic hydrocarbon resins (greater than 1% by wt.).
  • the water-repellent effect is reinforced if the polar compounds contain as the predominant constituent part oxidised and possibly also partially saponified Fischer-Tropsch waxes, oxidised paraffin, oxidised polyethylene, so-called PE waxes and, as the lesser component, fats (e.g. palm fats or soya oils) and/or fatty alcohols (e.g. Nafol® 20+).
  • oxidised paraffin oxidised polyethylene
  • PE waxes so-called PE waxes
  • fats e.g. palm fats or soya oils
  • fatty alcohols e.g. Nafol® 20+
  • the wax phase is preferably added to the gypsum slurry in the form of an aqueous wax dispersion, as gypsum board production is water-based and the dosing of the wax phase can therefore be significantly more accurate.
  • the preferably small particle size of the disperse wax phase ensures a particularly uniform distribution of the active substance in the gypsum slurry.
  • emulsifiers all types used for the production of wax dispersions, i.e. non-ionic, anionic and cationic emulsifier types, but also combinations of these (non-ionic with anionic and non-ionic with cationic) are suitable as emulsifiers.
  • Non-ionic and anionic emulsifiers are particularly suitable.
  • emulsifiers that achieve stabilisation by concentrating the water phase are also suitable.
  • These may be natural resins, for example, (Gum Ghatti, derivated cellulose) or xanthane polymers or else polysaccharide, but also inorganic substances of the bentonite type.
  • Particularly suitable as emulsifiers are sulphonates such as naphthaline sulphonate and/or lignin sulphonate, preferably along with a thickening agent such as Gum Ghatti, in particular.
  • polyvinyl alcohols may be added to the wax dispersion, particularly up to 0.5 to 4% by wt. relative to the wax dispersion, which are available, for example, as partially hydrolised ethylene vinyl acetate polymers, but also produced from acrylates and other polyvinyl esters. Degrees of hydrolysis of over 70%, particularly over 85%, are desirable, but not a requirement.
  • compositions according to the invention are advantageously wax dispersions, which can be produced with the aid of homogenisers.
  • at least two phases are combined with one another (pre-emulsion).
  • At least the wax-containing phase is heated above the solidification point for this, in order to melt the wax.
  • the other phase is the aqueous phase. This is preferably mixed with the emulsifier and is advantageously heated likewise.
  • the pre-emulsion is then passed through the circuit e.g. via splitting homogenisers, until the desired particle size of the wax phase is achieved.
  • the emulsion is then cooled to temperatures below the solidification point of the wax phase.
  • the individual wax particles of the disperse phase are evenly distributed in the aqueous, continuous phase by the process and a wax dispersion with prolonged stability is thereby obtained.
  • the wax dispersion is thereby created.
  • This is an oil in water (O/W) wax suspension with an average particle diameter of particularly 0.1 to 10 ⁇ m, advantageously 0.5 to 2 ⁇ m.
  • the wax dispersion according to the invention is particularly suitable for the production of the water-repellent gypsum compositions described above, particularly those containing or comprising foamed gypsum or aerated gypsum and, in particular, coated gypsum plasterboard, preferably using the aforementioned gypsum.
  • FIG. 1 shows how the O/W emulsions are typically produced.
  • a wax boiler ( 1 ) fitted with a temperature sensor and temperature monitoring system
  • the wax emulsifier ( 2 ), water and hot steam ( 3 ) are produced, agitated and moved into the pre-emulsion boiler ( 4 ) by means of a pump ( 5 ), where the water-emulsifier mixture ( 6 ) is added. Delivery and transfer into the homogeniser ( 8 ) takes place using the pump ( 7 ).
  • a cooling medium ( 9 ) the temperature of the emulsion is lowered in the cooling system ( 10 ), e.g. to 30° C., in order to obtain the finished wax dispersion ( 11 ).
  • the degree of water repellence can be determined by subjecting the gypsum body to an immersion test. This involves the water absorption being determined in % by wt. after a 120 minute immersion period (H 2 O 120 mins column in the following table). Suitable threshold values in this case are ⁇ 10% by wt. and, particularly, ⁇ 5% by wt. water absorption.
  • Table 1 shows the data for the finished wax phases (% stands for % by wt. in each case). It emerges that predominantly hard wax phases (needle penetration at 25° C. ⁇ 20 [0.1 mm] in accordance with ASTM D1321) with solidification points of between 60 and 80° C. and also acid numbers (DIN 51558) of between 0 and 10 (mgKOH/g) and also saponification numbers from 0 to 20 mgKOH/g have a beneficial effect on water repellence. This produces the values required by DIN 18180 of ⁇ 10% by wt. water absorption. The water absorption is therefore significantly reduced compared with the blind value (31%) of the natural gypsum used in this case, which demonstrates the effect of the wax mixtures used as wax dispersions.
  • the wax dispersions (WD) were made according to the following suggested formulation:
  • the water was heated to approx. 80° C. along with the surfactant and the KOH and agitated for roughly 20 mins.
  • the molten (80-100° C.) wax phase was then added and agitated for a further 5 minutes.
  • the pre-emulsion was added to the homogeniser and passed through the circuit for 1 minute, after which it was homogenised for 1 minute at a pressure of roughly 200 bar.
  • the wax emulsion was then cooled to room temperature during which the wax particles solidified and the wax dispersion was produced.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Paints Or Removers (AREA)
  • Medicinal Preparation (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Colloid Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
US11/989,259 2005-07-26 2006-07-25 O/W wax dispersions and plaster products obtainable from them Abandoned US20090194004A1 (en)

Priority Applications (2)

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US13/644,560 US8741056B2 (en) 2005-07-26 2012-10-04 O/W wax dispersions and gypsum products obtainable from these
US14/274,274 US9981874B2 (en) 2005-07-26 2014-05-09 O/W wax dispersions and gypsum products obtainable from these

Applications Claiming Priority (3)

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DE102005035515.3 2005-07-26
DE102005035515A DE102005035515A1 (de) 2005-07-26 2005-07-26 O/W Wachsdispersionen und hieraus erhältliche Gipsprodukte
PCT/DE2006/001293 WO2007012316A1 (de) 2005-07-26 2006-07-25 O/w wachsdispersionen und hieraus erhältliche gipsprodukte

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US13/644,560 Expired - Fee Related US8741056B2 (en) 2005-07-26 2012-10-04 O/W wax dispersions and gypsum products obtainable from these
US14/274,274 Expired - Fee Related US9981874B2 (en) 2005-07-26 2014-05-09 O/W wax dispersions and gypsum products obtainable from these

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US (3) US20090194004A1 (pl)
EP (1) EP1907480B1 (pl)
AT (1) ATE442419T1 (pl)
AU (1) AU2006274324B2 (pl)
CA (1) CA2614395C (pl)
DE (2) DE102005035515A1 (pl)
DK (1) DK1907480T3 (pl)
PL (1) PL1907480T3 (pl)
WO (1) WO2007012316A1 (pl)
ZA (1) ZA200800034B (pl)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110033555A1 (en) * 2007-12-24 2011-02-10 Klaus Kwetkat Method for producing wax in water dispersions from self-emulsifying gel concentrates
US20110042021A1 (en) * 2008-02-26 2011-02-24 Sasol Wax Gmbh Wood Composition Containing Olefins, Use of Olefins for Rendering Raw Wood Materials Water Repellent, and Method for the Production of Wood Materials
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US10464851B2 (en) 2013-04-26 2019-11-05 Basf Construction Solutions Gmbh Method for treating gypsum
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US10113094B2 (en) 2014-10-30 2018-10-30 Henry Company, Llc Phase-change materials from wax-based colloidal dispersions and their process of making
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CN114616289A (zh) * 2019-10-15 2022-06-10 科莱恩国际有限公司 具有低酸值的米糠蜡氧化物

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US20140245928A1 (en) 2014-09-04
WO2007012316A1 (de) 2007-02-01
AU2006274324A1 (en) 2007-02-01
US9981874B2 (en) 2018-05-29
PL1907480T3 (pl) 2010-04-30
AU2006274324B2 (en) 2012-01-19
US20130305962A1 (en) 2013-11-21
DK1907480T3 (da) 2010-01-04
US8741056B2 (en) 2014-06-03
CA2614395C (en) 2011-05-31
CA2614395A1 (en) 2007-02-01
ZA200800034B (en) 2009-03-25
DE102005035515A1 (de) 2007-02-01

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