WO2005042842A1 - Feste mischungen aus einem reaktivleimungsmittel und stärke, verfahren zu ihrer herstellung und ihre verwendung - Google Patents
Feste mischungen aus einem reaktivleimungsmittel und stärke, verfahren zu ihrer herstellung und ihre verwendung Download PDFInfo
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- WO2005042842A1 WO2005042842A1 PCT/EP2004/011608 EP2004011608W WO2005042842A1 WO 2005042842 A1 WO2005042842 A1 WO 2005042842A1 EP 2004011608 W EP2004011608 W EP 2004011608W WO 2005042842 A1 WO2005042842 A1 WO 2005042842A1
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- WIPO (PCT)
- Prior art keywords
- starch
- sizing agent
- mixtures
- reactive sizing
- reactive
- Prior art date
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/17—Ketenes, e.g. ketene dimers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
- D21H17/72—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
Definitions
- the invention relates to solid mixtures of a reactive sizing agent and starch, processes for their preparation and the use of aqueous dispersions of the mixtures as sizing agents for paper and paper products.
- Aqueous alkyl ketene dispersions and processes for their preparation by emulsifying molten alkyl diketenes in water in the presence of cationic starch and an anionic dispersant as a stabilizer under the action of shear forces are known, cf. US-A-3,223,544.
- Sizing agents for paper are known from EP-A-0 353 212, which e.g. by emulsifying a fatty alkyl diketene in the presence of a cationic starch with an amylopectin content of at least 85%, preferably 98 to 100%, and a degree of cationization (D.S.) of 0.04 to 0.4 in water.
- D.S. degree of cationization
- WO-A-00/23651 discloses aqueous, anionically sized sizing agent dispersions which can be obtained, for example, by dispersing alkyldiketenes in the presence of anionic dispersants as the sole stabilizer for the dispersed alkyldiketenes.
- aqueous sizing agents based on fatty alkyldiketenes at least one fatty alkyldiketene is melted and emulsified in water in the presence of an anionic emulsifier and a cationic starch at temperatures above 80.degree. At these temperatures, the starch is digested and is available as a colloidal solution.
- the alkyl diketenes dispersed in water have, for example, particle sizes of 0.5 to 5 ⁇ m.
- the emulsifier immediately stabilizes the drops created during high-pressure emulsification and the starch acts as a protective colloid around the drops stabilized in this way. This leads to a long-term stabilization of the drops during the production of the emulsion and, after the emulsion has cooled, stabilizes the solid particles of the aqueous dispersion which is then present.
- aqueous sizing agent dispersions based on alkyldiketenes have only a relatively low solids content (approx. 25% by weight). One is therefore forced to transport large amounts of water to the end user.
- the dispersions produced according to the prior art are only stable for a few months because a slow hydrolysis and decarboxylation of the fatty alkyldiketenes begins immediately after production, which leads to the fact that closed containers which contain such sizing agents slowly expand.
- the dispersions are also Due to the large difference in the density of the continuous phase and the disperse phase, it is subjected to a slow creaming process, which leads to the disperse system separating.
- thickening processes are also known, which likewise deteriorate the quality of the alkyldiketene dispersions when stored for a long time.
- Destructured starch is described in EP-A-0 118240. They are obtained by heating starch to a temperature above the melting and glass transition temperatures. Mixtures based on destructurized starch are known from EP-A-0400531 which can be used for the production of, for example, biodegradable films. They can be obtained by mixing native starch with a high-boiling plasticizer such as polyethylene glycol, polypropylene glycol or sorbitol, and a destructurizing agent such as urea, alkali metal hydroxide or alkaline earth metal hydroxide in an extruder at temperatures from 120 to 170 ° C.
- a high-boiling plasticizer such as polyethylene glycol, polypropylene glycol or sorbitol
- a destructurizing agent such as urea, alkali metal hydroxide or alkaline earth metal hydroxide in an extruder at temperatures from 120 to 170 ° C.
- WO-A-00/03612 From WO-A-00/03612 a method for the production of pharmaceutical forms or precursors thereof is known.
- Polysaccharides and / or derivatives thereof, preferably starch and / or starch derivatives, and at least one pharmaceutically active substance are plasticized in an extruder in the presence of water.
- a positive extruder for example, a water content of 15% by weight is sufficient.
- thermoplastic starch material From DE-C-10062 848 a water-resistant, thermoplastic starch material is known, which by extrusion of native starch with a destructuring agent with a proportion of 30 to 60 wt .-% in a twin-screw extruder at 65 to 120 ° C and a subsequent storage Retrogradation is available.
- the object of the present invention is to provide a sizing agent mixture which has the lowest possible water content and which is easily dispersible in water.
- the object is achieved according to the invention with solid mixtures of a reactive sizing agent and starch, which can be obtained by mixing at least one reactive sizing agent with at least one starch in a melt in the presence of at least one destructuring agent for starch under the action of shear forces at temperatures from 65 to 250 ° C. and cooling the melt to room temperature.
- Solid mixing means that the components mixed together temperature (20 ° C) in the form of a finely divided mixture or agglomerate or as a solid-in-solid dispersion.
- Suitable reactive sizing agents are selected, for example, from the group of the C 14 to C 22 alkyl diketenes, the C 12 to C 30 alkyl succinic anhydrides, the C 2 to C 30 alkenyl succinic anhydrides or mixtures of the compounds mentioned.
- At least one cationic starch is preferably used as the starch.
- the mixing of at least one reactive sizing agent with at least one starch is preferably carried out in the presence of at least one emulsifier.
- the reactive sizing agents are preferably practically anhydrous, while starch contains up to 30% by weight, preferably 2 to 25, mostly 5 to 20% by weight of water.
- the starches can optionally be dried and have a water content of 1 to 2% by weight.
- Reactive sizes such as alkyldiketenes and alkenyl or alkyl succinic anhydrides are known sizes for paper. They are described in more detail, for example, in the references cited for the prior art.
- Examples of fatty alkyl diketenes are tetradecyl diketene, oleyl diketene, palmityldiketene, stearyl diketene and behenyl diketene.
- Diketenes with different alkyl groups e.g. Stearylpalmityldiketen, Behenylstearyldiketen, Behenyloleyldiketen or Palmityl-Behenyldiketen.
- Stearyldiketene, palmityldiketene, behenyldiketene and mixtures of these diketene, as well as stearylpalmitydiketene, palmitylbehenyldiketene and behenylstearyldiketene are preferably used.
- alkenylsuccinic anhydrides contain in the alkenyl group an alkylene radical with at least 6 C atoms in the alkylene group, preferably a C 14 to C 2 ⁇ -olefin radical.
- substituted succinic anhydrides are decenyl succinic anhydride, octenyl succinic anhydride, dodecenyl succinic anhydride and n-hexadecenyl succinic anhydride.
- the substituted succinic anhydrides which are suitable as sizing agents for paper are preferably emulsified in water with cationic starch as protective colloid.
- all native types of starch and all derivatized starches can be used, for example native starches from potatoes, wheat, rye, corn, peas, tapioca, mannioc, rice and sago and derivatized starches, for example by converting native starches with cationizing agents such as glycidyltrimethylammonium chloride or 3-chloro-2-hydroxypropyltrimethylammonium chloride or by reacting starch with cationic polymers, cf. WO-A-96/13525, page 3, line 26 to page 15, line 13.
- cationic polymers for the modification of native and / or degraded starches The starch can be degraded oxidatively, thermally, enzymatically or hydrolytically), preferably polymers containing vinylamine units, polyethyleneimines and / or polymers containing basic acrylamide or basic acrylate groups, such as copolymers of acrylamide and dimethylaminoethyl acrylate or copolymers of acrylamide and Dimethylaminoethyl acrylamide, where the copolymers mentioned are usually used in the form quaternized with alkylating agents such as methyl chloride.
- starches whose amylopectin content is at least 95% by weight, preferably at least 98% by weight, for example waxy corn starch, wax wheat starch or wax potato starch. They are preferably quaternized and have e.g. a degree of substitution (D.S.) of 0.01 to 0.15. The degree of substitution reflects the number of cationic groups per monosaccharide unit in the cationic starch.
- D.S. degree of substitution
- modified starches are oxidized native starches or oxidized derivatized starches, oxidatively, thermally, hydrolytically and / or enzymatically degraded starches, anionically modified starches and amphoteric starches.
- a summary of starches can be found, for example, in the book by Günther Tegge, Starch and Starch Derivatives, Hamburg, Bers-Verlag 1984.
- at least one cationic starch is used.
- the degree of substitution of the cationic starches is, for example, 0.01 to 1.0, preferably 0.02 to 0.3.
- At least one anionic dispersant and / or surface-active agent with an HLB value of, for example, 8 to 20 can be optionally used [for definition of the HLB value, cf. WC. Griffin, Journal of the Society of Cosmetic Chemist, Volume 1, 311 (1950)].
- Anionic dispersants include, for example, condensation products of naphthalenesulfonic acid and formaldehyde, phenol, phenolsulfonic acid and formaldehyde
- the anionic dispersants can be in the form of the free acids, the alkali metal, alkaline earth metal and / or the ammonium salts.
- the ammonium salts can be derived from ammonia as well as from primary, secondary and tertiary amines, for example the ammonium salts of dimethylamine, trimethylamine, hexylamine, cyclohexylamine, dicyclohexylamine, ethanolamine, diethano- lamin and triethanolamine.
- the condensation products described above are known and commercially available. They are prepared by condensing the constituents mentioned, it being possible to use the corresponding alkali metal, alkaline earth metal or ammonium salts instead of the free acids. Suitable catalysts in the condensation are, for example, acids such as sulfuric acid, p-
- Naphthalenesulfonic acid or its alkali metal salts are preferably condensed with formaldehyde in a molar ratio of 1: 0.1 to 1: 2 and mostly in a molar ratio of 1: 0.5 to 1: 1.
- the molar ratio for the production of condensates from phenol, phenolsulfonic acid and formaldehyde is also in the range given above, using any mixtures of phenol and phenolsulfonic acid instead of naphthalenesulfonic acid in the condensation with formaldehyde.
- phenolsulfonic acid one can also use the alkali metal and ammonium salts of phenolsulfonic acid.
- the condensation of the above-mentioned starting materials can optionally also be carried out in the presence of urea.
- urea based on naphthalenesulfonic acid or on the mixture of phenol and phenolsulfonic acid, 0.1 to 5 moles of urea are used per mole of naphthalenesulfonic acid or per mole of the mixture of phenol and phenolsulfonic acid.
- the condensation products have, for example, molar masses in the range from 800 to 100,000, preferably 1,000 to 30,000 and in particular 4,000 to 25,000.
- the anionic dispersants used are preferably salts which are obtained, for example, by neutralizing the condensation products with alkali metal hydroxides such as sodium hydroxide or Potassium hydroxide or ammonia.
- Lignin sulfonic acid and its salts such as sodium lignin sulfonate or calcium lignisulfonate can also be used as anionic dispersants.
- Anionic dispersants can also be made from amphiphilic copolymers
- hydrophobic monoethylenically unsaturated monomers and hydrophilic monomers with an anionic group such as monoethylenically unsaturated carboxylic acids, monoethylenically unsaturated sulfonic acids, monoethylenically unsaturated phosphonic acids or mixtures thereof
- Such copolymers have, for example, a molecular weight M w of 1,500 to 100,000.
- examples of such dispersants are copolymers of C 4 to C t 2 olefins and maleic anhydride. The molar ratio between maleic anhydride and olefin is, for example, in the range from 0.9: 1 to 3: 1.
- These copolymers are preferably used in hydrolyzed form as salts with alkali metal or ammonium ions.
- an anionic dipergic agent used the amounts used are 0.1 to 20, preferably 0.5 to 10 wt .-%.
- surfactants such as alkoxylated alcohols having 12 to 24 carbon atoms and a degree of ethoxylation and / or propoxylation of 4 to 50, preferably 5 to 20, can be used in the preparation of the mixtures according to the invention.
- the amount of surfactants optionally used is 0.1 to 5, preferably 0.3 to 3% by weight.
- the two essential components of the mixture - reactive sizing agent and starch - are preferably homogenized in an extruder or kneader.
- Preferred mixing units are self-cleaning extruders, the shaft or shafts of which are equipped with mixing and / or kneading elements.
- Suitable extruders are, for example, twin-screw extruders or planetary roller extruders.
- the water content of the starch is usually sufficient for the starch to be destroyed (broken down) when the starch is mixed with at least one reactive sizing agent.
- starch is broken down by introducing water vapor into the melt.
- Particularly homogeneous mixtures can be obtained by continuously mixing reactive sizing agent and starch in an extruder under the influence of ultrasound.
- the extruder used can be divided into several process zones.
- the individual process zones do not have to be identical to the individual extruder sections.
- one process zone extends over several extruder sections.
- Zone 1 supply of the components, can extend over several shots and is provided with supply openings for solids, liquid and possibly steam supply.
- One or more feed openings can be provided for each extruder section.
- the feed openings can be provided on the top, side or bottom of each of the extruder sections in question, any conceivable combination being possible, for example large top openings for powder dosing and bottom or side openings for liquid dosing and optionally top, side or bottom inlet openings for steam.
- the solid components are fed to the extruder via a lateral metering and feeding device and the liquid components and optionally the steam are introduced laterally, from above or from below.
- the solid, generally powdery components starch
- the screw elements are designed, for example, as pure conveying elements, and they can differ in pitch, number of gears and profile according to the task.
- two-flight screw elements of different pitch with an Erdmenger profile are used.
- other profiles are also conceivable, such as, for example, shear edge profile, etc.
- the starch is broken down by intensive mixing and kneading of the components.
- closed housings are used here.
- the extruder screw is equipped with conveying and mixing elements, which can be selected and arranged differently depending on the raw materials used and their proportions. All elements already described under Zone 1 can be considered as promotional elements.
- Neutral or conveying kneading blocks of different widths and number of kneading disks can be considered as mixing and kneading elements, whereby kneading blocks conveying backwards are also suitable.
- suitable mixing elements are toothed disks, tooth mixing elements and enamel mixing elements of the most varied of embodiments, as are offered by the various manufacturers. Baffle plates and screw elements conveying backwards can also exert the desired mixing effect.
- the extruder in part of zone 2 is alternately equipped with conveying and individual mixing and kneading elements. In another preferred embodiment, alternating with promoting elements and groupings of kneading elements.
- the digestion of the starch is supported by the additional introduction of energy, for example with the aid of ultrasound.
- Zone 2 is followed by the mixing zone 3, in which the digested starch is combined with a melt of at least one reactive sizing agent.
- the reactive sizing agent is melted separately from the extruder, for example in a boiler.
- the melt of the reactive sizing agent is metered at the beginning of the mixing zone, for example via an injection valve through an opening in the corresponding extruder section from above, from below or from the side of the extruder.
- a plurality of injection openings are also conceivable, which are arranged in parallel next to one another, one above the other, opposite or in a circle around the extruder cross section can.
- the mixing section contains further closed housing sections.
- the extruder screw contains conveying and mixing elements in this section. Elements such as those described in the descriptions of zones 1 and 2 are suitable.
- the arrangement is preferably such that mixing and conveying elements alternate with one another.
- Groups of conveying kneading blocks or tooth mixing elements may be mentioned as examples, combinations of conveying and return conveying or conveying and neutral kneading blocks also being suitable.
- the degassing zone 4 follows the mixing zone 3.
- the extruder has one or more housing sections with one or more degassing openings.
- the degassing openings preferably have a large cross section in order to ensure the highest possible degassing performance. They can be arranged upwards, or laterally on one or two sides, or both upwards and laterally, as well as downwards, if suitable measures are taken to prevent the extruder contents from escaping.
- the degassing openings can be operated in a purely atmospheric manner, or in part atmospherically and in part under vacuum. In certain cases, operation under positive pressure is also conceivable. Volatile constituents are removed from the mixture in the degassing zone, in particular in this part of the extruder all or part of the water required for starch digestion is removed from the mixture.
- the degassing can be operated as a simple degassing dome with appropriate inserts in the extruder openings. However, in order to prevent product from escaping, it is also possible to use retaining screws on the degassing openings.
- the degassing is operated atmospherically and without retaining screws.
- the degassing is carried out under vacuum.
- the degassing is carried out at different pressures, for example the first at atmospheric and the others under reduced pressure.
- the extruder screw essentially has conveying elements in the degassing area.
- the operation of different degassing openings at different pressures can also be advantageous using stagnant elements (as described for example as zones 1 and 2 as kneading elements).
- the discharge zone 5 follows the degassing zone 4. This consists of one or more closed housings with conveying screw elements.
- the discharge zone can be closed off with a nozzle plate, a slot nozzle or other elements.
- the extruder can also be used directly with a shaping Process part be connected, in which the emerging melt is brought into a form that can be further processed (powder, granulate, strand, flakes).
- a shaping Process part be connected, in which the emerging melt is brought into a form that can be further processed (powder, granulate, strand, flakes).
- the machines known from the prior art such as, for example, a cooling belt, cooling roll or the like, are used.
- grinding units are connected for powder.
- the extruder is cooled in the discharge area, so that the finished product is discharged as an agglomerated powder.
- the cooling melt is dripped onto a cooling belt or a cooling roller via a nozzle bar, where it solidifies.
- the product in this case would be dust-free granules or lozenges.
- the reactive sizing agent and starch are mixed in the presence of a starch de-structuring agent.
- a starch de-structuring agent Such means are necessary for the decomposition of starch.
- destructuring agents are water, alcohols, urea, dimethyl urea and / or polyalkylene glycols such as polyethylene glycol, polypropylene glycol, block copolymers of ethylene oxide and propylene oxide and polyalkylene glycols end-capped on one or both sides with C to C 22 alkyl groups.
- Destructuring agent that is preferably used is water, which, for example due to the moisture content of starch, is practically always present during the preparation of the mixtures or is added during mixing. As already described above, water can also be introduced into the mixing apparatus in vapor form, in particular as superheated steam.
- Reactive sizing agents and starch are used, for example, in a weight ratio of 10: 1 to 1:10.
- the mixing ratio of reactive sizing agent to starch is usually between 9 parts by weight of reactive sizing agent and 1 part by weight of starch up to 1 part by weight of reactive sizing agent and 9 parts by weight of starch.
- Particularly preferred mixtures contain 2 to 6, in particular 3 to 5 parts by weight of reactive size per 1 part by weight of starch.
- the invention also relates to a process for producing solid mixtures of a reactive sizing agent and starch, wherein at least one reactive sizing agent with at least one starch in a melt in the presence of at least one destructuring agent for starch under the action of shear forces at temperatures from 65 to 250 ° C. , preferably 75 to 190 ° C mixes and then cools the melt to room temperature.
- the individual components can be mixed discontinuously or continuously.
- the reactive sizing agent used is, for example, at least one compound from the group consisting of C 1 to C 22 alkyl diketenes, C 12 to C 30 alkyl succinic anhydrides, C 12 to C 30
- Alkenylsuccinic anhydrides or mixtures thereof and preferably a cationic starch is used as the starch. Both components are preferably used in At least one emulsifier is presently mixed in an extruder while introducing superheated steam into the mixing zone of the extruder. In order to produce particularly homogeneous mixtures, the components are mixed continuously in an extruder under the influence of ultrasound.
- the mixtures obtainable in this way which are in solid form at room temperature, for example in the form of powders, extrudates, flakes or granules, are easily dispersible in water, in particular if they contain an emulsifier.
- the particle size of the reactive sizes in the mixture with starch is, for example, 0.1 to 100 ⁇ m, preferably 0.5 to 5 ⁇ m.
- the reactive sizing agents are present in the solid mixture as a mixture or aggregates.
- the mixtures according to the invention are used in the form of aqueous dispersions as process aids in the production of paper. Such aqueous dispersions, which are added to the paper stock during paper manufacture, lead to bulk sizing and the solidification of paper. However, they can also be used for surface sizing paper.
- the degree of sizing was determined in accordance with Cobb 60 in accordance with DIN EN 20 535.
- the ink floating time was determined in accordance with DIN 53 126 with a test ink (blue).
- the mean particle diameter of the dispersed particles of the dispersions was determined by Fraunhofer diffraction using a Coulter LS 230 device with a small volume module.
- a pilot extruder from the ZSK 25 series from Coperion Werner & Pfleiderer was used with a screw diameter of 25 mm and a total length of 13 rounds.
- the starch was fed in laterally as a powder via a ZSB 25 screw conveyor. A mixture of water and emulsifier was pumped into the same shot.
- Shot 4-6 included the starch digestion zone with groups of kneading blocks.
- An ultrasound finger Dr. Hilscher, Watt
- Shot 7-9 included the mixing zone of alkyldiketene (AKD). AKD was melted in a separate container and metered in using a pump with a defined throughput.
- Shot 10-11 included the degassing zones with atmospheric vent openings located at the top.
- Shot 12-13 included the discharge zones operating at lower temperatures than the rest of the extruder.
- Component 1 cationic starch Hi-Cat® (Roquette) 21370, 89% component 2 commercially available anionic emulsifier (naphthalenesulfonic acid condensation product (Tamol® NN) dissolved in water, 6.23%)
- Component 3 steam, 180 ° C supply temperature component 4 C ⁇ 6 - / C 18 -alkyldiketene (melted separately and dosed at a temperature of 75-80 ° C)
- Basoplast 2030 LC is a commercially available 20.5% aqueous AKD dispersion
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Abstract
Description
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Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002542095A CA2542095A1 (en) | 2003-10-23 | 2004-10-15 | Mixtures of solids, consisting of a reactive sizing agent and starch, method for producing said mixtures and use thereof |
| EP04765968A EP1678376A1 (de) | 2003-10-23 | 2004-10-15 | Feste mischungen aus einem reaktivleimungsmittel und stärke, verfahren zu ihrer herstellung und ihre verwendung |
| US10/576,678 US7294190B2 (en) | 2003-10-23 | 2004-10-15 | Mixtures of solids, consisting of a reactive sizing agent and starch, method for producing said mixtures and use thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10349727.7 | 2003-10-23 | ||
| DE10349727A DE10349727A1 (de) | 2003-10-23 | 2003-10-23 | Feste Mischungen aus einem Reaktivleimungsmittel und Stärke, Verfahren zu ihrer Herstellung und ihre Verwendung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005042842A1 true WO2005042842A1 (de) | 2005-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2004/011608 Ceased WO2005042842A1 (de) | 2003-10-23 | 2004-10-15 | Feste mischungen aus einem reaktivleimungsmittel und stärke, verfahren zu ihrer herstellung und ihre verwendung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7294190B2 (de) |
| EP (1) | EP1678376A1 (de) |
| CA (1) | CA2542095A1 (de) |
| DE (1) | DE10349727A1 (de) |
| WO (1) | WO2005042842A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2199462A1 (de) * | 2008-12-18 | 2010-06-23 | Coöperatie Avebe U.A. | Verfahren zur Herstellung von Papier |
| US8608908B2 (en) | 2010-04-02 | 2013-12-17 | International Paper Company | Method and system using low fatty acid starches in paper sizing composition to inhibit deposition of multivalent fatty acid salts |
| US20120205059A1 (en) * | 2011-01-24 | 2012-08-16 | Semra Senturk-Ozer | Pretreatment method of cellulosic biomass via flowability control and reactive extrusion process |
| FI126316B (en) | 2014-02-06 | 2016-09-30 | Kemira Oyj | Stabilized adhesive formulation |
| FI126960B (en) | 2014-02-06 | 2017-08-31 | Kemira Oyj | Stabilized adhesive formulation |
| FI131243B1 (fi) * | 2023-06-22 | 2025-01-07 | Kemira Oyj | Menetelmä ja järjestely alkyyliketeenidimeeri emulsion valmistamiseksi paikan päällä, alkyyliketeenidimeeri emulsio ja sen käyttö |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3223544A (en) * | 1963-03-19 | 1965-12-14 | American Cyanamid Co | Manufacture of cationic paper sizing ketene dimer emulsions |
| EP0418015A1 (de) * | 1989-09-11 | 1991-03-20 | Eka Nobel Landskrona AB | Aktive Leimungszusammensetzungen |
| WO1998033979A1 (en) * | 1997-02-05 | 1998-08-06 | Akzo Nobel N.V. | Sizing of paper |
| US6001166A (en) * | 1995-11-03 | 1999-12-14 | Basf Aktiengesellschaft | Aqueous alkyldiketene dispersions and their use as size for paper |
| DE19952354A1 (de) * | 1999-10-30 | 2001-05-03 | Nopco Paper Technology Holding | Verwendung von Gemischen |
| WO2001088262A2 (en) * | 2000-05-18 | 2001-11-22 | Bayer Corporation | Paper sizing compositions and methods |
| EP1176254A1 (de) * | 2000-07-24 | 2002-01-30 | The Dow Chemical Company | Verwendung von Dispersionen aus vernetzter Stärke bei der Papierherstellung |
| US20020096290A1 (en) * | 2000-08-07 | 2002-07-25 | Erik Lindgren | Process for sizing paper |
| WO2004022850A1 (en) * | 2002-09-09 | 2004-03-18 | Stfi, Skogsindustrins Tekniska Forskningsinstitut Ab | Method for sizing of paper or paperboard. |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL282997A (de) | 1961-09-08 | |||
| BG46154A3 (bg) | 1983-02-18 | 1989-10-16 | Warner-Lambert Company Llc | Метод за получаване на капсули |
| SE461404C (sv) | 1988-06-22 | 1999-11-15 | Betzdearborn Inc | Limningskomposition, förfarande för framställning därav, förfarande för framställning av limmat papper, och limmat papper |
| US4861376A (en) * | 1988-11-10 | 1989-08-29 | Hercules Incorporated | High-solids alkyl ketene dimer dispersion |
| IT1234783B (it) | 1989-05-30 | 1992-05-27 | Butterfly Srl | Procedimento per la produzione di composizioni a base di amido destrutturato e composizioni cosi ottenute |
| DE4117628C3 (de) * | 1991-05-29 | 1999-02-11 | Inventa Ag | Verfahren und Vorrichtung zur Herstellung von Stärkeschmelze sowie nach diesem Verfahren erhältliche Produkte |
| JPH06128896A (ja) | 1992-10-16 | 1994-05-10 | Mitsubishi Oil Co Ltd | アルケニルコハク酸系エマルションサイズ剤 |
| CA2114816A1 (en) | 1993-02-03 | 1994-08-04 | Shigeto Hatanaka | Sizing agent for papermaking |
| US5961708A (en) * | 1996-01-25 | 1999-10-05 | Raisio Chemicals Oy | Internal sizing composition for paper |
| SE508593C2 (sv) * | 1996-03-29 | 1998-10-19 | Stora Kopparbergs Bergslags Ab | Limningskomposition samt förfarande för användning därav vid framställning av papper |
| DE19729306C2 (de) * | 1997-07-09 | 2002-04-04 | Celanese Ventures Gmbh | Stärke und/oder modifizierte Stärke und Weichmacher enthaltende Zusammensetzungen sowie Verfahren und Verwendung |
| JP2002520343A (ja) | 1998-07-13 | 2002-07-09 | イェルク・ペーター・シューア | 抗菌性組成物 |
| WO2000023651A1 (de) | 1998-10-16 | 2000-04-27 | Basf Aktiengesellschaft | Wässrige, anionisch oder kationisch eingestellte leimungsmittel-dispersionen für die leimung von papier |
| DE10062848C1 (de) | 2000-12-11 | 2002-04-04 | Biop Biopolymer Gmbh | Wasserformbeständiges, thermoplastisches Stärkematerial, Verfahren zu dessen Herstellung und dessen Verwendung |
-
2003
- 2003-10-23 DE DE10349727A patent/DE10349727A1/de not_active Withdrawn
-
2004
- 2004-10-15 US US10/576,678 patent/US7294190B2/en not_active Expired - Fee Related
- 2004-10-15 WO PCT/EP2004/011608 patent/WO2005042842A1/de not_active Ceased
- 2004-10-15 EP EP04765968A patent/EP1678376A1/de not_active Withdrawn
- 2004-10-15 CA CA002542095A patent/CA2542095A1/en not_active Abandoned
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3223544A (en) * | 1963-03-19 | 1965-12-14 | American Cyanamid Co | Manufacture of cationic paper sizing ketene dimer emulsions |
| EP0418015A1 (de) * | 1989-09-11 | 1991-03-20 | Eka Nobel Landskrona AB | Aktive Leimungszusammensetzungen |
| US6001166A (en) * | 1995-11-03 | 1999-12-14 | Basf Aktiengesellschaft | Aqueous alkyldiketene dispersions and their use as size for paper |
| WO1998033979A1 (en) * | 1997-02-05 | 1998-08-06 | Akzo Nobel N.V. | Sizing of paper |
| DE19952354A1 (de) * | 1999-10-30 | 2001-05-03 | Nopco Paper Technology Holding | Verwendung von Gemischen |
| WO2001088262A2 (en) * | 2000-05-18 | 2001-11-22 | Bayer Corporation | Paper sizing compositions and methods |
| EP1176254A1 (de) * | 2000-07-24 | 2002-01-30 | The Dow Chemical Company | Verwendung von Dispersionen aus vernetzter Stärke bei der Papierherstellung |
| US20020096290A1 (en) * | 2000-08-07 | 2002-07-25 | Erik Lindgren | Process for sizing paper |
| WO2004022850A1 (en) * | 2002-09-09 | 2004-03-18 | Stfi, Skogsindustrins Tekniska Forskningsinstitut Ab | Method for sizing of paper or paperboard. |
Also Published As
| Publication number | Publication date |
|---|---|
| US20070074641A1 (en) | 2007-04-05 |
| DE10349727A1 (de) | 2005-05-25 |
| US7294190B2 (en) | 2007-11-13 |
| EP1678376A1 (de) | 2006-07-12 |
| CA2542095A1 (en) | 2005-05-12 |
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