FR2526061A1 - PROCESS FOR THE MANUFACTURE OF A MIXTURE OF COATINGS AND PIGMENTS FOR COATING PAPER - Google Patents
PROCESS FOR THE MANUFACTURE OF A MIXTURE OF COATINGS AND PIGMENTS FOR COATING PAPER Download PDFInfo
- Publication number
- FR2526061A1 FR2526061A1 FR8306953A FR8306953A FR2526061A1 FR 2526061 A1 FR2526061 A1 FR 2526061A1 FR 8306953 A FR8306953 A FR 8306953A FR 8306953 A FR8306953 A FR 8306953A FR 2526061 A1 FR2526061 A1 FR 2526061A1
- Authority
- FR
- France
- Prior art keywords
- talc
- calcite
- mixture
- paper
- grinding
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/021—Calcium carbonates
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/385—Oxides, hydroxides or carbonates
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
-
- 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
- D21H21/50—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 form
- D21H21/52—Additives of definite length or shape
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Paper (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Description
La presente invention concerne un procédé pour la fabrication d'un melange de charges et/ou de pigments d'enduction pour le papier à partir de talc et de calcite grossierement broyes. The present invention relates to a process for the manufacture of a mixture of fillers and / or coating pigments for paper from coarsely ground talc and calcite.
Pour l'amélioration des propriétés du papier et pour l'abaissement des proportions des charges coûteuses dans le papier, on utilise comme charges dans le papier des minéraux en poudre dont la dimension moyenne de particules est habituellement de 2 å 4 m et la luminosité ISO de 80 à 85 %. En particulier pour l'amélioration des propriétés d'impression du papier, on ajoute à la surface du papier des poudres minerales dont la dimension moyenne de particules est habituellement de O,S à 2 et la luminosite ISO de 85 à 95 /0. On parle dans ce cas d'une enduction du papier par des pigments. For the improvement of paper properties and for lowering the proportions of costly fillers in paper, powdered minerals are used as fillers in paper, the average particle size of which is usually 2 to 4 m and the ISO brightness from 80 to 85%. In particular for improving the printing properties of paper, mineral powders are added to the surface of the paper, the average particle size of which is usually from O, S to 2 and the ISO luminosity from 85 to 95/0. We speak in this case of a coating of paper with pigments.
Les minéraux habituellement utilises dans la fabrication du papier sont le kaolin, le talc et la calcite ; cette derniere porte dans l'industrie du papier l'appellation de carbonate de calcium, correspondant à la composition chimique. The minerals commonly used in papermaking are kaolin, talc and calcite; the latter is known in the paper industry as calcium carbonate, corresponding to the chemical composition.
La fabrication d'un papier contenant deux charges a augmente ces derniers temps, en particulier avec la mise an service d'un procede neutre ou alcalin de fabrication du papier. On estime également que l'utilisation de talc et de calcite dans l'enduction du papier doit'augmenter rapidement dans les prochaines annees.The manufacture of paper containing two fillers has increased in recent times, in particular with the introduction of a neutral or alkaline process for the manufacture of paper. It is also estimated that the use of talc and calcite in the coating of paper should increase rapidly in the coming years.
Les poudres minérales utilisées dans t fabrication du papier sont préparées en principe selon deux procedes, chacune selon la source de matières premières
- classification de mineral present en vrac dans le sol ou
- niicrobroyage, c'est-B-dire micronisation, d'un minéral présent à l'beat solide dans le fondement de roc.The mineral powders used in papermaking are in principle prepared according to two processes, each according to the source of raw materials
- classification of mineral present in bulk in the soil or
- niicrobrinding, that is to say micronization, of a mineral present in the solid beat in the rock foundation.
La classification et la micronisation sont aussi utilisées simultanément et on les fait suivre souvent de l'élimination des mineraux apparaissant comme impuretés, par exemple par classification, flottation ou traitement brut magnetique. Classification and micronization are also used simultaneously and are often followed by the removal of minerals appearing as impurities, for example by classification, flotation or crude magnetic treatment.
Le talc et la calcite utilisables comme charges et/ou pigments d'enduction pour le papier sont actuellement fabriques aêparément par des procédés différents et livres le plus souvent à la papeterie sous la forme de produits en vrac, en poudre, contenant de 10 à 15 % d'eau. Talc and calcite which can be used as fillers and / or pigments for coating paper are currently produced separately by different processes and are usually delivered to the stationery in the form of loose, powdered products containing from 10 to 15 % water.
Le microtalc est habituellement fabrique par les procedes suivants
- abattage du minerai de talc,
- broyage du minerai de talc,
- pulvérisation du minerai de talc à une dimension de graine appropriée pour la flottation,
- separation du talc des autres minéraux par un procede de flottation,
- épaississement du concentré de talc en une suspension aqueuse å teneur élevée en solides
- filtration de la poudre de talc epaissie,
- séchage de la poudre de talc filtrée jusqu'a humidité nulle et micronisation dans un broyeur b jet de vapeur,
- humectation et agglomération ou mise en suspension dans l'eau du talc microns ou microtalc.The microtalc is usually made by the following processes
- mining of talc ore,
- grinding of talc ore,
- spraying talc ore to a seed size suitable for flotation,
- separation of talc from other minerals by a flotation process,
- thickening of the talc concentrate into an aqueous suspension with a high solids content
- filtration of thickened talcum powder,
- drying of the talcum powder filtered to zero humidity and micronization in a steam jet grinder,
- moistening and agglomeration or suspension in water of talc microns or microtalc.
Dans un broyeur jet de vapeur appartenant aux broyeurs energie de fluide, l'énergie contenue dans la vapeur sous haute pression est utilise pour le sechage et la micronisation de la poudre de talc humide. Le broyeur lui-meme ne comporte pat de pièces mobiles.Les particules de talc atteignent tans le courant de vapeur une énergie cinetique Levée et sont broyees lors des collisions entre elles et avec les parois du broyeur. GrAc la construction du broyeur, il se produit une classification en même temps que le broyage et le talc finement broyé sort du broyeur avec le courant de vapeur. la capacite calorifique de la vapeur sortant du broyeur est élevée et ne peut pas etre exploitee dans le broyage. In a steam jet mill belonging to fluid energy mills, the energy contained in the steam under high pressure is used for drying and micronization of the wet talcum powder. The crusher itself does not have any moving parts. Talc particles reach a rising kinetic energy in the vapor current and are crushed during collisions with each other and with the walls of the crusher. Thanks to the construction of the mill, a classification occurs at the same time as the grinding and the finely ground talc comes out of the mill with the steam current. the heat capacity of the steam leaving the mill is high and cannot be used in grinding.
La calcite micronisée est de plus an plus fabriquée de la maniere suivante
- abattage du minerai de calcite (calcaire ou marbre),
- broyage du minerai de calcite,
- pulverisation du minerai de calcite å une grosseur de grains appropriée pour la flottation,
- separation du minerai de calcite des autres minéraux par le procedé de flottation;si l'on utilise comme matière premiere un minerai de calcite suffisamment pur, une flottation de la calcite n'est pas nécessaire,
- epaississement du concentre de calcite en poudre en une suspension aqueuse à teneur élevée en solides,
- micronisation de la poudre de calcite épaissie dans un broyeur par frottement.Micronized calcite is also produced in the following way
- mining of calcite ore (limestone or marble),
- grinding of calcite ore,
- pulverization of the calcite ore to a grain size suitable for flotation,
- separation of calcite ore from other minerals by the flotation process; if a sufficiently pure calcite ore is used as raw material, calcite flotation is not necessary,
- thickening of the powdered calcite concentrate into an aqueous suspension with a high solids content,
- micronization of the thickened calcite powder in a friction mill.
La micronisation de la poudre de calcite s'effectue dans un broyeur par frottement par l'action d'une energie cinetique cédée par un melangeur à vitesse de rotation élevée à de petites billes de broyage. Le broyeur est habituellement dispose dans un cylindre en position verticale, alimente en continu a sa partie inférieure par une matière broyee sous forme de suspension aqueuse. The micronization of the calcite powder is carried out in a friction mill by the action of kinetic energy transferred by a high speed mixer to small grinding balls. The mill is usually placed in a cylinder in an upright position, continuously fed at its lower part with a ground material in the form of an aqueous suspension.
La matière est broyee pendant son passage dans le broyeur et en sort par sa partie supérieure. Dans le broyage humide par frottement, la consommation d'energie est en general de 1/3 a 1/2 de la quantité d'énergie necessaire pour un broyage correspondant par broyage au jét. The material is crushed during its passage through the crusher and leaves it through its upper part. In wet grinding by friction, the energy consumption is generally from 1/3 to 1/2 of the amount of energy necessary for a corresponding grinding by jet grinding.
Experimentalement, le talc micronisé avec broyage humide par frottement perd tant sa luminosité qu'il ne peut pas être utilisé comme pigment d'enduction ou charge pour le papier. On a en outre constate que la micronisation de talc plus loche dans un broyeur humide par frottement à une finesse de moins de 2 1um exige plus d'énergie que pour d'autres minéraux, à cause des propriétés de broyage différentes des minéraux. Experimentally, micronized talc with wet grinding by friction loses so much its luminosity that it cannot be used as coating pigment or filler for paper. It has further been found that micronization of more coarse talc in a wet grinder with a fineness of less than 2 μm requires more energy than for other minerals, because of the different grinding properties of the minerals.
La calcite est à son tour très appropriée pour le broyage humide par frottement et la luminosité ISO de la poudre micronisée obtenue à partir de matière première pure est considerablement élevée, d'environ 95 r.. Calcite is in turn very suitable for wet grinding by friction and the ISO luminosity of the micronized powder obtained from pure raw material is considerably high, around 95 r ..
La mise en suspension du talc sec obtenu par le broyage au jet de vapeur est difficile à cause des propriétés d'humectation et des propriétés rhéologiques désavantageuses du talc. Les propriétés d'humectation~et les proprietés rhéologiques de la calcite sont très bien connues. Suspending the dry talc obtained by steam jet milling is difficult because of the disadvantageous moistening properties and rheological properties of the talc. The wetting properties and rheological properties of calcite are very well known.
Pour permettre le broyage humide par frottement du talc, on utilise dans l'invention les points suivants
- la luminosite élevée de la calcite broyee par broyage humide par frottement, la luminosité du melange de talc
et de calcite micronisbprevu comme charge ou pigment d'enduction pour le papier etant appropriee,
- les propriétés rheologiques de la calcite pour l'accélération de la micronisation du talc,
- les proprietes rheologiques favorables de la calcite en vue de la compensation des propriétés defavorables correspondantes du talc pour l'obtention de proprietes rheologiques suffisamment bonnes pour la mise en suspension du melange. To allow wet grinding by talc rubbing, the following points are used in the invention
- the high luminosity of the calcite crushed by wet grinding by friction, the luminosity of the talc mixture
and micronisbprevu calcite as filler or coating pigment for paper being suitable,
- the rheological properties of calcite for the acceleration of micronization of talc,
- the favorable rheological properties of calcite with a view to compensating for the corresponding unfavorable properties of talc to obtain rheological properties which are sufficiently good for suspending the mixture.
Selon l'invention; on cherche ensuite remplacer le procédé de fabrication du microtalc en plusieurs stades coûteux, actuellement utilise, par un procede simple et efficacc, dans lequel on utilise les possibilités qu'offre une fabrication de l'autre miné- ral micronise, la calcite. According to the invention; we then seek to replace the process of manufacturing microtalc in several costly stages, currently used, by a simple and efficient process, in which the possibilities offered by the manufacture of the other micronized mineral, calcite, are used.
L'invention est caractérisée en ce que le mélange de talc et calcite en poudre melange pour la suspension dans l'eau est microbroye par le procede de broyage par frottement. Il est avantageux dans le procede selon l'invention que la teneur en solides du mélange talc-calcite-eau soit de 50 a 80 Z en poids et le rapport de melange du talc et de la calcite soit compris dans l'intervalle de 2:1 à 1:3. The invention is characterized in that the mixture of talc and calcite in powder mixture for the suspension in water is microbilled by the process of grinding by friction. It is advantageous in the process according to the invention that the solids content of the talc-calcite-water mixture is from 50 to 80% by weight and the mixture ratio of talc and calcite is between 2: 1 to 1: 3.
Les poudres de talc et de calcite. sont fabriquées Separerent par des procédés convenables, après quoi elles sont dosées et melangees dans le rapport approprié pour la suspension dans l'eau et le melange est micronisé par le procédé de broyage par frottement. Talcum and calcite powders. are produced Separerent by suitable methods, after which they are dosed and mixed in the appropriate ratio for suspension in water and the mixture is micronized by the friction grinding process.
On obtient de cette manière un produit contenant deux minéraux ap- propries comme charge et/ou pigment d'enduction pour le papier, le talc et la calcite micronisés, qui est livré à une papeterie sous forme d'une suspension aqueuse à teneur élevee en solides. Simul tapement, le traitement -et le transport de deux produits séparés, le microtalc et la microcalcite, sont remplaces par le traitement et le transport d'un mélange contenant un talc sous forme trouble et une microcalcite. This produces a product containing two suitable minerals as filler and / or coating pigment for paper, talc and micronized calcite, which is delivered to a stationery in the form of an aqueous suspension with a high content of solid. Simulation, the treatment and transport of two separate products, microtalc and microcalcite, are replaced by the treatment and transport of a mixture containing talc in cloudy form and microcalcite.
Le rapport entre le talc et la calcite est
déterminé d'après la qualite du talc et de la calcite utilisés comme
matières premières ainsi que d'après la luminosite recherchée du
melange de charges ou pigments d'enduction et d'après la repartition
granulométrique et les autres facteurs essentiels dans la fabrica
tion du papier.The ratio of talc to calcite is
determined from the quality of the talc and calcite used as
raw materials as well as according to the desired luminosity of the
mixture of fillers or coating pigments and according to the distribution
particle size and other essential factors in fabrica
tion of the paper.
On atteint grace à l'invention des économies impor
tantes des colts d'energie et analogues, parce que plusieurs phases
de fabrication, telles que, par exemple, la filtration du concentre
de talc, le séchage jusqu'à humide nulle et le nouveau delayage
à l'eau, sont devenues inutiles. Le traitement des produits et le transport sont également simplifiés et la depense d'énergie est
réduite, si le broyage humide par frottement, qui est plus avantageux,
remplace dans la micronisation du talc le broyage au jet de vapeur.Thanks to the invention, significant savings are achieved
aunts of energy colts and the like, because several phases
manufacturing, such as, for example, concentrating filtration
talc, drying to zero humidity and the new delayage
with water, have become useless. Product processing and transportation are also simplified and energy expenditure is
reduced, if wet grinding by friction, which is more advantageous,
replaces in the micronization of talc steam grinding.
Il est entendu que l'invention n'est pas limite
aux modes de realisation preferes decrits ci-dessus à titre d'illus
tration et que l'homme de l'art peut y apporter diverses modifications
et divers changements sans toutefois s'écarter du cadre et de
11 esprit de l'invention. It is understood that the invention is not limited
to the preferred embodiments described above by way of illustration
tration and that the skilled person can make various modifications
and various changes without departing from the framework and
11 spirit of invention.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI821505A FI64674C (en) | 1982-04-29 | 1982-04-29 | FOERFARANDE FOER FRAMSTAELLNING AV EN FYLLNADSMEDELS- OCH / ELLER BELAEGGNINGSPIGMENTBLANDNING FOER PAPPER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2526061A1 true FR2526061A1 (en) | 1983-11-04 |
| FR2526061B1 FR2526061B1 (en) | 1985-11-22 |
Family
ID=8515437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8306953A Expired FR2526061B1 (en) | 1982-04-29 | 1983-04-27 | PROCESS FOR THE MANUFACTURE OF A MIXTURE OF COATINGS AND PIGMENTS FOR COATING PAPER |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT379623B (en) |
| DE (1) | DE3312778A1 (en) |
| FI (1) | FI64674C (en) |
| FR (1) | FR2526061B1 (en) |
| IT (1) | IT1159571B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0595723A1 (en) * | 1992-10-29 | 1994-05-04 | PROVENCALE S.A. (Société Anonyme) | Process for manufacturing pigmentary fillers on mineral basis, thus obtained pigmentary fillers and their uses |
| FR2777289A1 (en) * | 1998-04-09 | 1999-10-15 | Pluss Stauffer Ag | COMPOSITE COMPOSITIONS OF CO-STRUCTURED OR CO-ADSORBED MINERAL OR ORGANIC PIGMENTS OR PIGMENTS AND USES THEREOF |
| FR2777288A1 (en) * | 1998-04-09 | 1999-10-15 | Pluss Stauffer Ag | Composite compositions containing mineral or organic fillers or pigments |
| US8323397B2 (en) | 2008-11-11 | 2012-12-04 | Mondo Minerals B.V. Branch Finland | Talc for paint products and method of making the same |
| WO2014053498A1 (en) * | 2012-10-02 | 2014-04-10 | Imerys Talc Europe | Method for grinding a particulate inorganic material |
| WO2015121432A1 (en) * | 2014-02-13 | 2015-08-20 | Imerys Minerals Limited | Compositions |
| US9944798B2 (en) | 2006-06-09 | 2018-04-17 | Omya International Ag | Composite of inorganic and/or organic microparticles and nano-dolomite particles |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI70805B (en) * | 1984-03-30 | 1986-07-18 | Myllykoski Oy | FOERFARANDE FOER DISPERGERING AV TALK |
| DE4118340C2 (en) * | 1991-06-04 | 1996-07-11 | Drescher Geschaeftsdrucke | Process for the manufacture of a paper product, paper product produced thereafter and use of the same |
| DE4312463C1 (en) * | 1993-04-16 | 1994-07-28 | Pluss Stauffer Ag | CaCO3 3 -Talkum coating pigment slurry, process for its preparation and its use |
| DE102006026965A1 (en) | 2006-06-09 | 2007-12-13 | Omya Development Ag | Composites of inorganic and / or organic microparticles and nano-calcium carbonate particles |
| DE102007004124B4 (en) | 2007-01-26 | 2019-01-17 | Omya International Ag | Fillers and / or pigments comprising a composite or an aqueous slurry of a composite of inorganic and / or organic microparticles and nano-dolomite particles |
| DE102007059736A1 (en) | 2007-12-12 | 2009-06-18 | Omya Development Ag | Surface mineralized organic fibers |
| DE102007059681A1 (en) | 2007-12-12 | 2009-06-18 | Omya Development Ag | Composites of inorganic microparticles with a phosphated surface and nano alkaline earth carbonate particles |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3366501A (en) * | 1964-12-10 | 1968-01-30 | Cyprus Mines Corp | Calcined hydrophilic talc pigment |
| FR2143390A1 (en) * | 1971-06-24 | 1973-02-02 | English Clays Lovering Pochin | |
| US3798047A (en) * | 1970-12-18 | 1974-03-19 | Omya Sa | Pigment for coating paper and manufacture thereof |
| FR2203681A1 (en) * | 1972-10-18 | 1974-05-17 | Pluss Stauffer Ag | |
| DE2505520A1 (en) * | 1974-02-11 | 1975-08-14 | Johns Manville | GROUND TALK MATERIAL AND THE METHOD OF MANUFACTURING IT |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI56872C (en) * | 1976-10-29 | 1980-04-10 | Yhtyneet Paperitehtaat Oy | FOERFARANDE FOER FRAMSTAELLNING AV EN BESTRYKNINGSTALKPRODUKT I FORM AV EN ELLER FLERA KOMPONENTER |
| US4223207A (en) * | 1978-02-24 | 1980-09-16 | E. I. Du Pont De Nemours And Company | Apparatus for controlling the power supplied to a load |
| DE2808425A1 (en) * | 1978-02-27 | 1979-08-30 | Pluss Stauffer Ag | MINERAL FILLER |
-
1982
- 1982-04-29 FI FI821505A patent/FI64674C/en not_active IP Right Cessation
-
1983
- 1983-04-09 DE DE19833312778 patent/DE3312778A1/en active Granted
- 1983-04-27 FR FR8306953A patent/FR2526061B1/en not_active Expired
- 1983-04-28 IT IT67459/83A patent/IT1159571B/en active
- 1983-04-28 AT AT0155183A patent/AT379623B/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3366501A (en) * | 1964-12-10 | 1968-01-30 | Cyprus Mines Corp | Calcined hydrophilic talc pigment |
| US3798047A (en) * | 1970-12-18 | 1974-03-19 | Omya Sa | Pigment for coating paper and manufacture thereof |
| FR2143390A1 (en) * | 1971-06-24 | 1973-02-02 | English Clays Lovering Pochin | |
| FR2203681A1 (en) * | 1972-10-18 | 1974-05-17 | Pluss Stauffer Ag | |
| DE2505520A1 (en) * | 1974-02-11 | 1975-08-14 | Johns Manville | GROUND TALK MATERIAL AND THE METHOD OF MANUFACTURING IT |
Non-Patent Citations (1)
| Title |
|---|
| TAPPI, vol. 62, no. 5, mai 1979, pages 37-41, Atlanta, GA (USA); * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0595723A1 (en) * | 1992-10-29 | 1994-05-04 | PROVENCALE S.A. (Société Anonyme) | Process for manufacturing pigmentary fillers on mineral basis, thus obtained pigmentary fillers and their uses |
| FR2697529A1 (en) * | 1992-10-29 | 1994-05-06 | Provencale Sa | Process for preparing mineral-based pigment fillers, pigment fillers obtained by said process and their uses |
| US7537675B2 (en) | 1998-04-09 | 2009-05-26 | Omya Ag | Composite co-structured or co-adsorbed, mineral or organic filler or pigment compounds and the use thereof |
| FR2777288A1 (en) * | 1998-04-09 | 1999-10-15 | Pluss Stauffer Ag | Composite compositions containing mineral or organic fillers or pigments |
| WO1999052984A1 (en) * | 1998-04-09 | 1999-10-21 | Pluess-Staufer Ag | Composite compositions of co-structured or co-adsorbed organic or mineral pigments or fillers and their uses |
| US7311802B2 (en) | 1998-04-09 | 2007-12-25 | Omya Ag | Composite co-structured or co-adsorbed, mineral or organic filler or pigment compounds and the use thereof |
| FR2777289A1 (en) * | 1998-04-09 | 1999-10-15 | Pluss Stauffer Ag | COMPOSITE COMPOSITIONS OF CO-STRUCTURED OR CO-ADSORBED MINERAL OR ORGANIC PIGMENTS OR PIGMENTS AND USES THEREOF |
| US7645361B2 (en) | 1998-04-09 | 2010-01-12 | Omya Ag | Composite co-structured or co-adsorbed, mineral or organic filler or pigment compounds and the use thereof |
| USRE44601E1 (en) | 1998-04-09 | 2013-11-19 | Omya Development Ag | Composite co-structured or co-adsorbed, mineral or organic filler or pigment compounds and the use thereof |
| US9944798B2 (en) | 2006-06-09 | 2018-04-17 | Omya International Ag | Composite of inorganic and/or organic microparticles and nano-dolomite particles |
| US8323397B2 (en) | 2008-11-11 | 2012-12-04 | Mondo Minerals B.V. Branch Finland | Talc for paint products and method of making the same |
| WO2014053498A1 (en) * | 2012-10-02 | 2014-04-10 | Imerys Talc Europe | Method for grinding a particulate inorganic material |
| WO2015121432A1 (en) * | 2014-02-13 | 2015-08-20 | Imerys Minerals Limited | Compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2526061B1 (en) | 1985-11-22 |
| FI64674C (en) | 1983-12-12 |
| AT379623B (en) | 1986-02-10 |
| FI821505A0 (en) | 1982-04-29 |
| FI64674B (en) | 1983-08-31 |
| ATA155183A (en) | 1985-06-15 |
| DE3312778C2 (en) | 1989-05-11 |
| IT1159571B (en) | 1987-03-04 |
| DE3312778A1 (en) | 1983-11-03 |
| IT8367459A0 (en) | 1983-04-28 |
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