Patents Assigned to Italcementi S.p.A.
  • Patent number: 10239785
    Abstract: The present invention relates to a cementitious composition adapted to form mortars or cements comprising glass as an additive having reduced tendency to reaction with alkali, characterized in that said glass is obtained by grinding and subsequent washing with water.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 26, 2019
    Assignee: ITALCEMENTI S.P.A.
    Inventors: Antonio Princigallo, Stefano Cangiano
  • Patent number: 10011051
    Abstract: Aim of the present invention is to obtain cementitious products having smooth, planar surfaces and low thickness for applications having aesthetic purpose, of integrated architecture or as substrates, for example for a thin-film photovoltaic unit, with controlled curling and surface roughness, manufactured by mold casting of a fluid composition comprising: I. a hydraulic binder; II. one or more aggregates; III. an anti-shrinkage agent; IV. a superplasticizer agent; V. water, wherein the percentage by weight of said hydraulic binder in the composition is lower than that of said aggregates, and wherein said aggregates have a maximum diameter dmax not greater than one third of the thickness of the product, the final product thus having an arithmetic mean surface roughness Ra not greater than 500 nm and curling not greater than 1500 micron.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: July 3, 2018
    Assignee: Italcementi S.P.A.
    Inventors: Roberta Alfani, Claudia Cappone, Flavio Rampinelli
  • Patent number: 10011527
    Abstract: It is described an integrated process for the production of clinker by dry process, with treatment in continuous of by-pass dusts produced by the kiln, wherein the solid matter to treat consists of bypass dusts of a clinker production process, containing compounds of chloride, sodium, potassium and sulphur, such a process comprising the following steps: a) extraction of the bypass dusts directly from the phase of quench, without intermediate storage, at a temperature comprised between 150 and 200° C., with a moisture content varying from 0.1 to 3% by weight, preferably from 0.1 to 0.5% by weight, and with a quantity of calcium carbonate lower than 55% by weight; b) mixing of said dusts coming from step a), within a maximum time comprised between 2 and 10 minutes, preferably lower than about 5 minutes, with water up to a water/dusts ratio varying from 2:1 to 4:1, preferably from 2.5:1 to 3.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: July 3, 2018
    Assignee: ITALCEMENTI S.P.A.
    Inventors: Roberto Fedi, Antonio Clausi, Giovanni Cinti
  • Patent number: 9810277
    Abstract: A friction material is disclosed comprising a binding composition based on a hydraulic binder and its use in brake pads and industrial applications.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: November 7, 2017
    Assignees: FRENI BREMBO S.P.A., ITALCEMENTI S.P.A.
    Inventors: Roberta Alfani, Fabio Corazza, Flavio Rampinelli, Andrea Bonfanti, Paolo Varotto, Laura Sammarelli, Arianna Belotti
  • Patent number: 9782913
    Abstract: The present invention relates to a method for manufacturing prism-shaped panels (1), each comprising through portions (55) made of translucent material adapted to transmit light between two opposite sides of the panel. The method includes arranging a plurality of elements (5, 5?, 5?) made of translucent material in a formwork so that the main direction of development (500) of such elements is parallel to the vertical direction of development (203) of the formwork. The method includes pouring cementitious mortar into said formwork (4) so that said cementitious mortar is distributed between said elements and so as to generate, after the hardening of said cementitious mortar, a substantially prism-shaped semi-finished cementitious mortar product (2) in which said elements made of translucent material are incorporated.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: October 10, 2017
    Assignee: ITALCEMENTI S.P.A.
    Inventors: Stefano Cangiano, Aronne Carminati
  • Patent number: 9593045
    Abstract: The invention has as object a cementitious composition for forming mortars or concretes having reduced tendency to react with alkali, characterized in that it comprises as additive at least a compound of general formula: [R—N—(CH2—COOH)n]x??(I) R being an aliphatic or aromatic hydrocarbon chain, n=2 or 3 and x=1 or 2.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 14, 2017
    Assignee: ITALCEMENTI S.P.A.
    Inventors: Antonio Princigallo, Stefano Cangiano
  • Patent number: 9577128
    Abstract: The present invention relates to a substrate for a thin film photovoltaic module, characterized in that it is a cementitious product with average surface roughness Ra not higher than 500 nm. The invention also relates to the cementitious product as such, the thin film photovoltaic module comprising it, and a method of molding both of them.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: February 21, 2017
    Assignee: ITALCEMENTI S.P A.
    Inventors: Roberta Alfani, Claudia Capone, Marco Plebani
  • Patent number: 9469568
    Abstract: The present invention relates to a composite panel (10) based on cementitious mortar, passed through its entire thickness by a plurality of through openings (11), each of which is filled with a material transparent to light in the form of a preformed plate (12) housed in said opening (11), or formed in said opening, wherein said cement-based mortar contains at least 30 kg/m 3 of fibers selected from one or more of the following types: metallic fibers, steel fibers, glass fibers, polymeric resin fibers. The invention also relates to methods of production of said panel.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: October 18, 2016
    Assignee: ITALCEMENTI S.P.A.
    Inventors: Stefano Cangiano, Aronne Carminati
  • Publication number: 20160185016
    Abstract: The present invention relates to a method for manufacturing prism-shaped panels (1), each comprising through portions (55) made of translucent material adapted to transmit light between two opposite sides of the panel. The method includes arranging a plurality of elements (5, 5?, 5?) made of translucent material in a formwork so that the main direction of development (500) of such elements is parallel to the vertical direction of development (203) of the formwork. The method includes pouring cementitious mortar into said formwork (4) so that said cementitious mortar is distributed between said elements and so as to generate, after the hardening of said cementitious mortar, a substantially prism-shaped semi-finished cementitious mortar product (2) in which said elements made of translucent material are incorporated.
    Type: Application
    Filed: May 14, 2014
    Publication date: June 30, 2016
    Applicant: Italcementi S.P.A.
    Inventors: Stefano CANGIANO, Aronne CARMINATI
  • Patent number: 9309154
    Abstract: Herein described are cementitious products and articles of manufacture comprising a carbon-doped titanium dioxide, having long-term photocatalytic activity. The titanium dioxide contained therein may be obtained by irradiating titanium dioxide under specific conditions of wavelength, in presence of a gas flow comprising an inert gas and an organic compound. The titanium dioxide thus treated acquires a high and stable carbon content, maintaining the specific surface area thereof substantially unaltered. The cementitious products/articles of manufacture containing it have a high and efficient photocatalytic action.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: April 12, 2016
    Assignee: ITALCEMENTI S.p.A.
    Inventor: Gian Luca Guerrini
  • Patent number: 9297160
    Abstract: The present invention relates to a composite panel made from cementitious mortar characterized in that a plurality of openings pass through its complete width, each of which is filled with a transparent to light material. The invention also relates to methods for producing this panel.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: March 29, 2016
    Assignee: ITALCEMENTI S.P.A.
    Inventors: Stefano Cangiano, Aronne Carminati
  • Patent number: 9255366
    Abstract: It is disclosed a concrete screed with recycled rubber from discarded tyres (PFU), comprising cement, pre-treated recycled rubber from discarded tyres, with particle size comprised between 0.1 and 20 mm, preferably between 1 and 10 mm, still more preferably between 2 and 5 mm, pre-treated, inert materials, polymeric additives and water.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: February 9, 2016
    Assignee: Italcementi S.p.A
    Inventors: Alessandro Morbi, Marcello Antonio Molfetta, Sara Sgobba
  • Patent number: 9139960
    Abstract: A new photocatalytic composition is described that is designed for percolation in road surfaces. The composition contains no aggregates, but consists of cement, a photocatalyst, a superfluidifier, a viscosity modifier and an antifoaming agent, in suitable proportions. The composition is applied to porous open-graded asphalt courses, completely filling the cavities down to a thickness coming between 30 and 50 mm. The treated asphalt acquires a strong, durable photocatalytic activity, even when it is submitted to heavy mechanical loads and adverse weather conditions, as in the case of road surfaces in and out of town, liable to intense traffic.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: September 22, 2015
    Assignee: ITALCEMENTI S.P.A.
    Inventors: Gian Luca Guerrini, Jean-Pierre Grelaud
  • Patent number: 9091483
    Abstract: The present invention concerns a process for purifying a flow of combustion fumes from a clinker production plant comprising the following operating steps: a) removing dust at a temperature comprised between 250 and 400° C. from a flow of combustion fumes exiting from a suspension preheater with formation of a flow of combustion fumes free of dust; b) carrying out on said flow of combustion fumes free of dust a selective catalytic NOx reduction treatment with a reducing agent, with formation of a purified flow of combustion fumes. The present invention also concerns an apparatus for carrying out the aforementioned process.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: July 28, 2015
    Assignee: ITALCEMENTI S.P.A.
    Inventors: Roberto Fedi, Antonio Clausi, Giovanni Cinti
  • Patent number: 8936675
    Abstract: The present invention relates to new precast cementitious products with photocatalytic activity, and to a process to obtain them.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: January 20, 2015
    Assignee: Italcementi S.p.A.
    Inventor: Roberta Alfani
  • Publication number: 20140308077
    Abstract: It is disclosed a concrete screed with recycled rubber from discarded tyres (PFU), comprising cement, pre-treated recycled rubber from discarded tyres, with particle size comprised between 0.1 and 20 mm, preferably between 1 and 10 mm, still more preferably between 2 and 5 mm, pre-treated, inert materials, polymeric additives and water.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 16, 2014
    Applicant: Italcementi S.p.A.
    Inventors: Alessandro Morbi, Marcello Antonio Molfetta, Sara Sgobba
  • Publication number: 20140216533
    Abstract: Aim of the present invention is to obtain cementitious products having smooth, planar surfaces and low thickness for applications having aesthetic purpose, of integrated architecture or as substrates, for example for a thin-film photovoltaic unit, with controlled curling and surface roughness, manufactured by mould casting of a fluid composition comprising: I. a hydraulic binder; II. one or more aggregates; III. an anti-shrinkage agent; IV. a superplasticizer agent; V. water, wherein the percentage by weight of said hydraulic binder in the composition is lower than that of said aggregates, and wherein said aggregates have a maximum diameter dmax not greater than one third of the thickness of the product, the final product thus having an arithmetic mean surface roughness Ra not greater than 500 nm and curling not greater than 1500 micron.
    Type: Application
    Filed: September 12, 2012
    Publication date: August 7, 2014
    Applicant: ITALCEMENTI S.P.A. (ITALIAN JOINT STOCK COMPANY)
    Inventors: Roberta Alfani, Claudia Cappone, Flavio Rampinelli
  • Patent number: 8784097
    Abstract: The present invention concerns an apparatus for the production of clinker from raw meal, comprising: a rotary kiln (8), optionally a precalciner; a multi-stage cyclone preheater (9) connected downstream of said rotary kiln (8) with respect to the direction of flow of the fumes (11) of a combustion taking place in said kiln (8); an electrofilter (10) connected downstream of said preheater (9) with respect to said direction of flow of the combustion fumes (11); characterized in that it comprises a first inlet (17) for feeding raw meal to said combustion fumes (11), said inlet (17) being arranged downstream of said preheater (9) and upstream of said electrofilter (10) with respect to said direction of flow of the combustion fumes (11), and in that it comprises a second inlet (18) for feeding partially preheated raw meal (14) from said electrofilter (10) to said preheater (9). The present invention also concerns an improved process for the production of clinker from raw meal.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: July 22, 2014
    Assignee: Italcementi S.p.A.
    Inventors: Roberto Fedi, Antonio Clausi, Giovanni Cinti
  • Patent number: 8754149
    Abstract: New photocatalytic cement compositions are disclosed. These contain a superfluidizing agent, a cellulosic ether with a defined viscosity, an adhesive polymer, and a lattice, as well as other standard ingredients for photocatalytic cements. The compositions are free of starch and its chemically modified derivatives.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: June 17, 2014
    Assignee: Italcementi S.p.A.
    Inventors: Carmine Pepe, Gian Luca Guerrini
  • Patent number: 8663386
    Abstract: A dry cement mix based on a hydraulic binder and a glass aggregate for forming light concretes with low thermal conductivity, characterized in that said glass aggregate comprises a fine fraction consisting of granulated aggregate with a particle size from 0.5 to 2 mm, and a coarse fraction consisting of crushed aggregate with a particle size from 4 to 20 mm, obtaining for said glass aggregate a well-defined overall particle size distribution.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: March 4, 2014
    Assignee: Italcementi S.p.A.
    Inventors: Stefano Cangiano, Alessandro Morbi