Organic Material Or Silicon Containing Patents (Class 106/465)
  • Patent number: 10400194
    Abstract: Solid detergent compositions according to the present invention include at least one alkali metal silicate, at least one polycarboxylic acid, at least one saccharide or sugar alcohol and water. Suitable saccharides include sucrose, fructose, inulin, maltose and lactulose, and may be present in the composition in a concentration of at least 0.5 wt %. Compositions according to certain embodiments form stable solid block detergent compositions that do not swell significantly even when subjected to elevated temperatures.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: September 3, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Erik C. Olson, Carter M. Silvernail
  • Patent number: 10351710
    Abstract: The present invention relates to a method for the production of granules comprising surface-reacted calcium carbonate by a) providing surface-reacted calcium carbonate, b) saturating the surface-reacted calcium carbonate with one or more liquids; c) providing one or more binder; d) combining the liquid saturated surface-reacted calcium carbonate with the one or more binder under agitation in an agitation device; e) removing the liquid from the mixture of step d); as well as to the granules comprising surface-reacted calcium carbonate obtained by this method.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: July 16, 2019
    Assignee: Omya International AG
    Inventors: Daniel E. Gerard, Joachim Schoelkopf, Patrick A. C. Gane
  • Patent number: 10202531
    Abstract: Precipitated particles may be formed under conditions that provide a particle morphology suitable for conveying a desired set of properties to a wellbore circulation fluid. Methods for using precipitated particles in a wellbore may comprise: selecting precipitation conditions for producing precipitated particles that are substantially non-spherical in shape, are about 1 micron or under in size, or any combination thereof; forming the precipitated particles from a reaction mixture under the precipitation conditions without using a polymeric dispersant; and introducing a wellbore circulation fluid comprising a plurality of the precipitated particles into a wellbore penetrating a subterranean formation. The precipitation conditions may include one or more of modulating various reaction conditions, applying an electric field to the reaction mixture, or including a carbohydrate-based material in the reaction mixture.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: February 12, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Cato Russell McDaniel, Xiangnan Ye, Dale E. Jamison, Katerina Newman
  • Patent number: 10011732
    Abstract: The present invention consists of a process of preparation of at least one mineral matter and/or of at least one pigment, including a calcium carbonate made at once partially organophilic and partially hydrophilic, in which the carbonate is blended and/or ground and/or concentrated in an aqueous medium, in the presence of at least one salt of ethylene acrylic acid, one dispersing agent and/or one grinding aid agent, which is introduced before and/or during this treatment stage. Another object of the invention lies in the aqueous dispersions and suspensions of calcium carbonate thus obtained. They may be dried and the dry pigments obtained also constitute an object of the invention. Use of these aqueous dispersions and these dry pigments in the field of plastic, paints and paper constitutes another object of the invention.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: July 3, 2018
    Assignee: Omya International AG
    Inventors: Matthias Buri, Patrick A. C. Gane, Philipp Hunziker, René Burkhalter, Beat Karth
  • Patent number: 9493658
    Abstract: The present invention relates to a method of preparing calcium carbonate coated calcium hydroxide particles by combining calcium hydroxide and dry ice in an acquiescent manner. The invention further relates to an apparatus for carrying out the method and to the use of the calcium carbonate coated calcium hydroxide particles of the method as filler for use with thermoplastics polymers.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: November 15, 2016
    Assignee: Biosenta Inc.
    Inventors: Marcus E. Martin, Edward K. Pardiak
  • Publication number: 20150135995
    Abstract: The present invention relates to a process for preparing a surface treated mineral filler product, and to its preferred use in the field of plastic applications, and in particular polypropylene (PP)- or polyethylene (PE)-based breathable or extrusion coating film applications.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 21, 2015
    Applicant: Omya International AG
    Inventors: Matthias Buri, Patrick A.C. Gane, Samuel Rentsch, René Burkhalter
  • Publication number: 20150141565
    Abstract: The present invention relates to a process for preparing a surface treated mineral filler product, and to its preferred use in the field of plastic applications, and in particular polypropylene (PP)- or polyethylene (PE)-based breathable or extrusion coating film applications.
    Type: Application
    Filed: January 29, 2015
    Publication date: May 21, 2015
    Applicant: Omya International AG
    Inventors: Matthias Buri, Patrick A.C. Gane, Samuel Rentsch, René Burkhalter
  • Publication number: 20150128830
    Abstract: The present invention relates to an aqueous suspension of mineral pigment materials having high solids content, which contain dispersing agents and/or grinding agents based on renewable sources, and methods for preparing such a suspension and its use.
    Type: Application
    Filed: May 6, 2013
    Publication date: May 14, 2015
    Inventors: Patrick A.C. Gane, Matthias Buri, Samuel Rentsch, Cécile Ganneau
  • Publication number: 20150122440
    Abstract: The invention relates to a process for preparing self-binding pigment particle suspensions, to a self-binding pigment particle suspension as well as to a paper product comprising self-binding pigment particles and to the use of the self-binding pigment particle suspension in paper applications, such as in paper coating or as filler material.
    Type: Application
    Filed: April 29, 2013
    Publication date: May 7, 2015
    Inventors: Armelle Senti-Wenk, Patrick A.C. Gane, Joachim Schoelkopf
  • Publication number: 20150112009
    Abstract: The surface-treated calcium carbonate filler having a floc structure is provided which can provide a curable resin composition which has a high thixotropic property, exerts a high elongation degree at a low modulus, and has such a restoring rate that a load to be applied onto an adherend is reduced particularly by mixing in the curable resin composition, and the curable resin composition containing the filler.
    Type: Application
    Filed: April 26, 2013
    Publication date: April 23, 2015
    Applicant: Maruo Calcium Co., Ltd.
    Inventors: Katsunori Fukumoto, Yusuke Hayashi, Shigeru Sakaguchi, Tatsunari Yago
  • Publication number: 20150105260
    Abstract: The present invention relates to a process for preparing self-binding pigment particles comprising the following steps: a) providing an aqueous mineral pigment material suspension; b) providing at least one polymeric binder, wherein the binder comprises at least one modified polysaccharide having a degree of carboxylation in the range of 0.4 to 2.0 and having an intrinsic viscosity in the range of >300 to 500 ml/g, c) mixing the binder of step b) with the aqueous mineral pigment material suspension of step a) and adjusting the solids content of the obtained suspension so that it is >45 to 95 wt.-%, preferably from 45 to 80 wt.-%, based on the total weight of the suspension, and d) grinding the aqueous mineral material suspension of step c).
    Type: Application
    Filed: August 28, 2012
    Publication date: April 16, 2015
    Inventors: Daniel Gantenbein, Joachim Schoelkopf, Patrick A.C. Gane
  • Publication number: 20150096469
    Abstract: Composite pigments are provided which comprise a mineral pigment (such as kaolin clay, titanium dioxide, talc, mica or a mixture of two or more of these mineral pigments) and calcium carbonate precipitated in-situ on the surfaces of the particles of the mineral pigment.
    Type: Application
    Filed: October 3, 2013
    Publication date: April 9, 2015
    Inventors: Zhenzhong Zhang, Yaping Li
  • Publication number: 20150090415
    Abstract: The invention relates to a process for preparing self-binding pigment particle suspensions, to a self-binding pigment particle suspension as well as to a paper product comprising self-binding pigment particles and to the use of the self-binding pigment particle suspension as filler material.
    Type: Application
    Filed: August 22, 2012
    Publication date: April 2, 2015
    Inventors: Daniel Gantenbein, Joachim Schoelkopf, Patrick A.C Gane
  • Publication number: 20150083026
    Abstract: The present invention concerns a process for preparing self-binding pigment particles from an aqueous suspension of a calcium carbonate containing material, wherein an anionic binder and at least one cationic polymer are mixed with the suspension.
    Type: Application
    Filed: April 29, 2013
    Publication date: March 26, 2015
    Inventors: Daniel Gantenbein, Patrick A.C. Gane, Joachim Schoelkopf, Maximilian Laufmann, Lars Andersson
  • Patent number: 8987363
    Abstract: Calcium carbonate particles having very narrow particle sizes with a controlled D98 and minimal ultrafines (very small particles) are described. The particles are prepared by grinding a feedstock in a centrifugal grinding mill, which utilizes very high centrifugal forces to impact the particles with each other or grinding media.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: March 24, 2015
    Assignee: J.M. Huber Corporation
    Inventors: Lane George Shaw, Gary Lee Hillebrenner
  • Patent number: 8986441
    Abstract: Use of at least one polyethylenimine as an additive in an aqueous suspension, containing from 25 to 62 vol. % of at least one calcium carbonate-comprising material, wherein the use provides improved stability with regard to the conductivity of the suspension.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: March 24, 2015
    Assignee: Omya International AG
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A. C. Gane
  • Publication number: 20150064491
    Abstract: A paint composition includes microfibrillated cellulose, binder, and solvent. The microfibrillated cellulose may be present in an amount ranging from about 0.1% to about 10% by weight based on the total weight of the paint composition.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 5, 2015
    Applicant: IMERYS S.A.
    Inventors: Jonathan Phipps, Sophie Bourgoin, Annabelle Huguette Renee Legrix, Gemma Vinnicombe
  • Publication number: 20150013571
    Abstract: Use of at least one polyethylenimine as an additive in an aqueous suspension, containing from 25 to 62 vol. % of at least one calcium carbonate-comprising material, wherein the use provides improved stability with regard to the conductivity of the suspension.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Applicant: Omya International AG
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A.C. Gane
  • Publication number: 20140364553
    Abstract: Disclosed are a ?-crystal form nucleating agent composition for polypropylene and an application thereof. The composition is prepared by proportionally mixing barium tetrahydrophthalate, calcium tetrahydrophthalate and the like with adjuvants, such as hydrotalcite or calcium carbonate. The composition has better functions than a single-component ?-nucleating agent. The impact strength of polypropylene subjected to nucleation modification by the ?-crystal form nucleating agent composition can be improved by up to 6 times, and the heat distortion temperature is improved by about 10° C. to 20° C.; in addition, while the impact strength is improved, the flexural modulus of polypropylene can be improved, namely, the rigidity of polypropylene is improved. Therefore, the mechanical and thermal properties of polypropylene are improved.
    Type: Application
    Filed: December 21, 2012
    Publication date: December 11, 2014
    Inventor: Wen Iin Zhao
  • Publication number: 20140345496
    Abstract: A process is provided for making a calcium carbonate slurry comprising the steps of (a) forming a mixture comprising water, an acidic dispersant system, and calcium carbonate, (b) grinding said mixture to form a preliminary slurry of particles of said calcium carbonate, wherein 50% or more by weight of said calcium carbonate in said preliminary slurry, based on the total weight of said calcium carbonate in said preliminary slurry, is in the form of particles having diameter of 2 micrometers or less, and wherein the pH of said preliminary slurry is 9.0 or below, and (c) after step (b), adding one or more organic neutralizing agent to bring the pH of said preliminary slurry to 9.4 or above.
    Type: Application
    Filed: December 10, 2012
    Publication date: November 27, 2014
    Applicant: Dow Global Technologies LLC
    Inventor: Alain Dufour
  • Publication number: 20140319412
    Abstract: The present invention relates to an economic process for preparing surface-reacted calcium carbonate. The present invention further relates to a surface-reacted calcium carbonate having an increased specific BET surface area, and the use of a process for adjusting the specific BET surface area.
    Type: Application
    Filed: June 26, 2014
    Publication date: October 30, 2014
    Applicant: Omya International AG
    Inventors: Patrick A.C. Gane, Daniel E. Gerard, Joachim Schölkopf
  • Publication number: 20140318417
    Abstract: Provided is a surface modification method of calcite powder prepared from desulfurized gypsum and heat-treated at a high temperature. According to the surface modification method, hydrophilic calcite powder having polarity may be changed into hydrophobic non-polar calcite powder by safely adsorbing a surface modifier onto a surface of the calcite powder and coating the surface with non-polar fatty acid. Particularly, in the case in which calcite powder heat-treated at a high temperature is hydrophobized, a significantly excellent hydrophobic surface property may be implemented.
    Type: Application
    Filed: April 29, 2013
    Publication date: October 30, 2014
    Applicant: Korea Institute of Geoscience and Mineral Resources
    Inventor: Korea Institute of Geoscience and Mineral Resources
  • Publication number: 20140318418
    Abstract: A nano-composite structure. A synthetic nano-composite is described having a first component including a fibrous structured amorphous silica structure, and a second component including a precipitated calcium carbonate structure developed by pressure carbonation. The nano-composite may be useful for fillers in paints and coatings. Also, the nano-composite may be useful in coatings used in the manufacture of paper products.
    Type: Application
    Filed: April 26, 2014
    Publication date: October 30, 2014
    Applicant: G.R. TECHNOLOGIES, LLC
    Inventor: Vijay K. MATHUR
  • Publication number: 20140323616
    Abstract: A process for manufacturing eggshell powder for use in the production of bio-based products is provided. The process involves exposing a quantity of eggshell to high air speed at room temperatures to pulverize the eggshell and separate the eggshell component from the inner membrane component. Thus, the process avoids the use of high temperatures and other harsh chemical treatments to remove the inner membrane from the eggshell thereby resulting in an eggshell material that retains the original lipid-protein structure of the native eggshell from which the powder derives. Accordingly, an eggshell powder composition is provided that is substantially free of inner membrane material and possesses a lipid-protein structure substantially similar to that of the eggshell from which the powder is derived. A polymer composite composition comprising an eggshell component and a polymer component is also provided.
    Type: Application
    Filed: November 16, 2012
    Publication date: October 30, 2014
    Inventors: Yongcheng Liu, Ke-Wei Wang, Michael Blanchard, Clive Li, Gary Metzger
  • Patent number: 8871018
    Abstract: Use of at least one polyethylenimine as an additive in an aqueous suspension, containing from 25 to 62 vol. % of at least one calcium carbonate-comprising material, wherein the use provides improved stability with regard to the conductivity of the suspension.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: October 28, 2014
    Assignee: Omya International AG
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A. C. Gane
  • Publication number: 20140290536
    Abstract: The process relates to mineral material slurries used in concrete, sealants, paper, paint or plastic applications, wherein the surface of the wet mineral matter slurry displays an increased whitening.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 2, 2014
    Inventors: Matthias Buri, Samuel Rentsch, Claudia Pudack
  • Publication number: 20140288188
    Abstract: This invention discloses a process for stabilising an aqueous mineral preparation comprising a step of adding at least one aldehyde-containing and/or aldehyde-releasing and/or phenolic and/or isothiazoline biocide to said aqueous mineral preparation.
    Type: Application
    Filed: November 22, 2012
    Publication date: September 25, 2014
    Inventors: Nicola Di Maiuta, Patrick Schwarzentruber
  • Patent number: 8821628
    Abstract: The present invention relates to a process for preparing an aqueous suspension of dispersed calcium carbonate, wherein the resulting coating of said suspension provides opaque properties or has a specific light scattering coefficient S. The invention further relates to compositions of such suspensions of dispersed calcium carbonate and to its use in the field of paper coatings and paper mass fillings as well as paints and plastic coatings.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: September 2, 2014
    Assignee: Omya International AG
    Inventors: Patrick A. C. Gane, Matthias Buri, Samuel Rentsch
  • Patent number: 8809582
    Abstract: The present invention relates to an economic process for preparing surface-reacted calcium carbonate. The present invention further relates to a surface-reacted calcium carbonate having an increased specific BET surface area, and the use of a process for adjusting the specific BET surface area.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: August 19, 2014
    Assignee: Omya International AG
    Inventors: Patrick A.C. Gane, Daniel E. Gerard, Joachim Schölkopf
  • Patent number: 8785687
    Abstract: The present invention relates to an economic process for preparing surface-reacted calcium carbonate. The present invention further relates to a surface-reacted calcium carbonate having an increased specific BET surface area, and the use of a process for adjusting the specific BET surface area.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: July 22, 2014
    Assignee: Omya International AG
    Inventors: Patrick A. C. Gane, Daniel E. Gerard, Joachim Schölkopf
  • Patent number: 8778140
    Abstract: A method of preparing a stable dispersion of flocculated filler particles for use in papermaking processes comprises use of microparticle prior to, simultaneous to, and/or after addition of a first flocculating agent to an aqueous dispersion of filler particles, followed by addition of a second flocculating agent to the dispersion and further optional shearing of the resultant filler flocs to the desired particle size resulting in shear resistant filler flocs with a defined and controllable size distribution. In addition, a neutralizing coagulant can be added to the dispersion to partially or completely neutralize the charge of the filler before the microparticle and/or the first flocculating agent is added.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: July 15, 2014
    Assignee: Nalco Company
    Inventors: Weiguo Cheng, Katherine M Broadus, Dorota Smoron, Shawnee M Wilson
  • Publication number: 20140182800
    Abstract: The invention provides a method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in a papermaking process The method improves the efficiency of drainage aids or wet web strength aids or wet strength aid by coating at least some of the filler particles with a natural gum and with a material that prevents the filler materials form adhering to those additives. The drainage additive or wet web strength additive or wet strength aid holds the cellulose fibers together tightly and is not wasted on the filler particles.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 3, 2014
    Inventors: David J. Castro, Weiguo Cheng
  • Publication number: 20140165877
    Abstract: The present invention relates to a process for preparing self-binding pigment particles from an aqueous mineral pigment material suspension having a solid content of 45 to 80 wt.-%, based on the total weight of the suspension.
    Type: Application
    Filed: March 22, 2012
    Publication date: June 19, 2014
    Inventors: Patrick A.C. Gane, Matthias Buri, Samuel Rentsch, Julie Bridy (Meuwly)
  • Publication number: 20140165879
    Abstract: The present invention relates to a process for preparing self-binding pigment particles from an aqueous mineral pigment material suspension having a solid content of 45 to 80 wt.-%, based on the total weight of the suspension.
    Type: Application
    Filed: March 22, 2012
    Publication date: June 19, 2014
    Inventors: Patrick A.C. Gane, Matthias Buri, Samuel Rentsch, Julie Bridy (Meuwly)
  • Publication number: 20140158022
    Abstract: The present invention is related to the industry of coatings and more specifically to the industry that manufactures bases for paints and even more specifically, to the industry that manufactures inorganic material bases. Our invention has, with respect to the current state of the art, the following advantages: coating characteristics, improved coloring and whiteness capacity which allow for adequate handling of the same even with a large concentration of solids, made of less costly materials. Said composition is characterized by consisting in its composition of kaolin with the following distribution of particle size: between 88 and 98% of the particles should be smaller than 2 microns and only between 10 and 30% should be smaller than 0.2 microns; and of calcium carbonate with a distribution of particle size of between 88 and 96% of the particles smaller than 2 microns and between 4 and 14% smaller than 0.2 microns.
    Type: Application
    Filed: November 24, 2011
    Publication date: June 12, 2014
    Applicant: ATSA COMERCIAL S.A.DE C.V.
    Inventor: Jorge Gerardo Garcia Teruel Y Herroz
  • Patent number: 8747617
    Abstract: A method of preparing a stable dispersion of flocculated filler particles for use in papermaking processes comprises sequential addition of a first flocculating agent to an aqueous dispersion of filler particles followed by shearing of the dispersion, followed by addition of a second flocculating agent to the dispersion and further shearing of the resultant filler flocs to the desired particle size resulting in shear resistant filler flocs with a defined and controllable size distribution. In addition, a neutralizing coagulant can be added to the dispersion to partially or completely neutralize the charge of the filler before the first flocculating agent is added.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: June 10, 2014
    Assignee: Nalco Company
    Inventors: Weiguo Cheng, Ross T. Gray
  • Patent number: 8741995
    Abstract: A calcium carbonate having a surface treated with a surface treating agent containing a sodium salt or a potassium salt of a fatty acid, the surface treating agent containing a sodium salt or a potassium salt of palmitic acid in an amount of PW in terms of acid, the surface treating agent containing a sodium salt or a potassium salt of stearic acid in an amount of SW in terms of acid, a total amount of PW and SW being PW+SW?90, a ratio of PW to SW being 0.30?PW/SW?1.1, the surface-treated calcium carbonate having a BET specific surface area of SA2 of 15?SA2?48, and the sodium salt or the potassium salt of the fatty acid being used for the treatment in an amount of FA and a ratio (FA/SA2) being 0.095?FA/SA2?0.135.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: June 3, 2014
    Assignee: Shiraishi Kogyo Kaisha, Ltd.
    Inventors: Shinjiro Fujiwara, Yoshisada Kayano, Peter-Christian Rainer, Gernot Primosch
  • Publication number: 20140128529
    Abstract: Provided are an impregnated calcium carbonate that hardly flies but has excellent dispersibility in a polymer composition, a method for producing the impregnated calcium carbonate, and a polymer composition including the impregnated calcium carbonate. The impregnated calcium carbonate is obtained by surface treating calcium carbonate with at least one of a fatty acid, a resin acid, and derivatives of them to yield a surface treated calcium carbonate and impregnating the surface treated calcium carbonate with an organic compound in a liquid state at a normal temperature in an amount of 3 to 22 parts by weight with respect to 100 parts by weight of the surface treated calcium carbonate.
    Type: Application
    Filed: June 12, 2012
    Publication date: May 8, 2014
    Applicant: SHIRAISHI KOGYO KAISHA, LTD.
    Inventors: Yu Sakai, Yoshisada Kayano, Kanehiro Osakabe
  • Publication number: 20140121312
    Abstract: A method for treating calcium carbonate includes combining calcium carbonate with an amount of stearic acid and an amount of water to form a mixture, the amount of water being at least about 0.1% by weight relative to the total weight. The method further includes blending the mixture to form a stearic acid-treated calcium carbonate composition.
    Type: Application
    Filed: October 10, 2013
    Publication date: May 1, 2014
    Applicant: Imerys Pigments, Inc.
    Inventors: Yash Khanna, David Taylor, David Anstine, Christopher Paynter
  • Patent number: 8685159
    Abstract: An adhesion bond strength enhancer for cementitious adhesive mortar is disclosed. The adhesion enhancer improves bond strength between the mortar and relatively hydrophobic plastic material, such as extruded polystyrene boards and expanded polystyrene boards of the type generally employed in Exterior Insulation Finishing Systems (“EIFS”). Preparation of non-caking, free-flowing, solid dialkyl sulfosuccinate compositions for use as the adhesion enhancer is also disclosed. The adhesion enhancer is attractive for large-scale application in mineral mortar dry-mixes or other solid construction materials. The invention can be used to improve the strength of an adhesive bond between a) gypsum based plaster or stucco and concrete or bricks, b) tile adhesives and concrete, and c) mineral mortars on polystyrene boards, among others.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: April 1, 2014
    Inventors: Gerald Kratschmer, Jorg Wilken
  • Publication number: 20140069302
    Abstract: The present invention relates to a filler or a filler mixture containing carbonate, as well as to a process for manufacturing the same by precipitating the filler directly into the pulp or, as a separate process without the presence of fibres, particularly from the wire water of the paper or board manufacture. The invention also relates to a fibre product containing this filler, such as a paper or board product, or a plastic, rubber, concrete or paint product.
    Type: Application
    Filed: December 21, 2012
    Publication date: March 13, 2014
    Applicant: NORDKALK OY AB
    Inventors: Sakari Saastamoinen, Teemu Grönblom, Lars Grönroos
  • Patent number: 8647472
    Abstract: The invention provides a method of producing paper with a higher proportion of mineral filler particles than is otherwise be possible without the expected loss in paper strength by preflocculating the filler particles. The method allows for the use of the greater amount of filler particles by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a strength additive. The strength additive holds the paper fibers together tightly and is not wasted on the filler particles.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: February 11, 2014
    Assignee: Nalco Company
    Inventors: Weiguo Cheng, Ross T. Gray
  • Publication number: 20140000486
    Abstract: The invention concerns a process for disinfection and/or conservation and/or reduction and/or control of microbial contamination of aqueous dispersions and/or aqueous suspensions of mineral matter, providing satisfactory stability in terms of Brookfield™ viscosity for the said aqueous dispersions and/or suspensions of mineral matter. It also concerns the said aqueous dispersions and/or suspensions thus obtained, together with their uses in the mineral, paper and paint industries. Finally it concerns the end products obtained.
    Type: Application
    Filed: August 28, 2013
    Publication date: January 2, 2014
    Inventors: Matthias Buri, Patrick Schwarzentruber, Silvia Hub-Schmid
  • Patent number: 8608905
    Abstract: This invention concerns the production of a multilayer fiber product. According to the method, on top of a bottom layer consisting of at least one fiber layer, a second fiber layer is fitted containing filler that forms the surface layer. According to the invention, the layers are formed by multilayer web forming technology, and the surface layer filler includes cellulose or lignocellulose fibrils, on which light-scattering material particles are deposited, having a maximum proportion of the total filler weight of 85%. By means of the invention, a base paper is achieved that is suited to thin, coated paper grades, where conventionally the intrusion of the coating color into the bottom paper and through it is a problem.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: December 17, 2013
    Inventors: Markku Leskela, Jari Meuronen, Petri Silenius, Sami Haapala
  • Publication number: 20130312925
    Abstract: A precipitated carbonate polysaccharide structure which, when used as a filler, improves the structural strength of paper or board, or gypsum boards, plastics or gums, among others, as well as the stiffness level and optical properties (brightness and opacity) of the paper or board, together or separately with other fillers; carbonates, in particular. The invention further improves the setting of printing ink on the surface of the paper or board. The invention also includes the manufacturing method of the precipitated carbonate polysaccharide structure.
    Type: Application
    Filed: March 13, 2013
    Publication date: November 28, 2013
    Inventors: Sakari Saastamoinen, Teemu Gronblom, Lars Gronroos
  • Patent number: 8580141
    Abstract: A method for treating calcium carbonate includes combining calcium carbonate with an amount of stearic acid and an amount of water to form a mixture, the amount of water being at least about 0.1% by weight relative to the total weight. The method further includes blending the mixture to form a stearic acid-treated calcium carbonate composition.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: November 12, 2013
    Assignee: Imerys Pigments, Inc.
    Inventors: Yash Khanna, David Taylor, David Anstine, Christopher Paynter
  • Patent number: 8568524
    Abstract: Provided are compositions comprising stamp sand granules embedded in asphalt, where the stamp sand granules comprise a silane coating. Additionally provided are methods of making a silane-coated stamp sand, the methods comprising combining stamp sand granules and a silane solution to form a mixture and drying the mixture. Additionally provided are methods of covering a surface, the methods comprising combining silane-coated particles and asphalt to provide a mixture and distributing the mixture on the surface.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: October 29, 2013
    Assignee: Michigan Technology University
    Inventors: Bowen Li, Ralph Hodek, Domenic Popko, Jiann-Yang Hwang
  • Publication number: 20130237657
    Abstract: The invention relates to a process for manufacturing calcium carbonate materials having a particle surface with improved adsorption properties of dispersant, using at least one lithium ion-containing compound, the calcium carbonate material obtained by this process, the use of the calcium carbonate materials in paper, paints and plastics, as well as the use of the lithium ion-containing compounds in the manufacturing process.
    Type: Application
    Filed: April 23, 2013
    Publication date: September 12, 2013
    Inventors: Patrick A.C. Gane, Matthias Buri, Beat Karth, Claudia Pudack
  • Patent number: 8529693
    Abstract: An adhesion bond strength enhancer for cementitious adhesive mortar is disclosed. The adhesion enhancer improves bond strength between the mortar and relatively hydrophobic plastic material, such as extruded polystyrene boards and expanded polystyrene boards of the type generally employed in Exterior Insulation Finishing Systems (“EIFS”). Preparation of non-caking, free-flowing, solid dialkyl sulfosuccinate compositions for use as the adhesion enhancer is also disclosed. The adhesion enhancer is attractive for large-scale application in mineral mortar dry-mixes or other solid construction materials. The invention can be used to improve the strength of an adhesive bond between a) gypsum based plaster or stucco and concrete or bricks, b) tile adhesives and concrete, and c) mineral mortars on polystyrene boards, among others.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: September 10, 2013
    Assignee: Troy Corporation
    Inventors: Gerald Krätschmer, Jörg Thomas Wilken
  • Patent number: 8518175
    Abstract: The invention consists in the use, in a process of manufacture of GCC and PCC co-ground in water, of a co-grinding agent characterized in that: a) it is constituted by a least one homopolymer and/or at least one copolymer of acrylic acid, which is partially neutralised, of which the rate of molar neutralization is less than 75% of the total acid functions, b) and in that it is introduced: during the stage of preparation of the aqueous suspensions of GCC and PCC, and/or during stage 2) of co-grinding, and possibly during the stage of co-grinding and another stage of concentration, and possibly during this other stage of concentration. The invention also lies in the resulting aqueous suspensions of GCC and PCC, in the dry pigments of GCC and PCC obtained, and in the use of these products in paper, paint, rubber and plastic.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: August 27, 2013
    Assignee: Coatex S.A.S.
    Inventors: Christian Jacquemet, Jacques Mongoin