Patents by Inventor Valeria Grenci
Valeria Grenci has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20190315945Abstract: A process for the preparation of a rubber compound for a pneumatic tyre portion. The process comprises a first non-productive mixing step, wherein, at least one cross-linkable unsaturated-chain polymer base, silica, a silane bonding agent comprised within the class of trialkoxymercaptoalkyl-silanes are mixed together and a productive mixing step, wherein, at least a vulcanization system and Zn oxide are added and blended to the compound under preparation. The silica is functionalized with dicarboxylic acids and the first non-productive mixing step does not comprise Zn oxide.Type: ApplicationFiled: October 20, 2017Publication date: October 17, 2019Applicant: BRIDGESTONE CORPORATIONInventors: Valeria GRENCI, Raffaele DI RONZA
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Patent number: 10035905Abstract: A rubber compound containing silicon dioxide for the production of tires, comprising at least one polymer base with cross-linkable unsaturated chain, silicon dioxide, a silane bonding agent, a vulcanization system and lignin comprising, in turn, at least part of its aromatic rings substituted with amine substituents.Type: GrantFiled: February 3, 2015Date of Patent: July 31, 2018Assignee: BRIDGESTONE CORPORATIONInventors: Claudia Aurisicchio, Valeria Grenci
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Publication number: 20170218180Abstract: A compound to prepare a tyre portion comprising a polymer base with cross-linking unsaturated chain comprising at least one halobutyl rubber, a reinforcing filler, a vulcanization system and a reinforcing filler with a laminated structure pretreated with a treating agent comprised in the group consisting of fatty acids, resin acid, fatty acid salts and fatty acid esters.Type: ApplicationFiled: March 5, 2015Publication date: August 3, 2017Applicant: BRIDGESTONE CORPORATIONInventors: Josè Antonio SILICANI, Valeria GRENCI
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Publication number: 20170166733Abstract: A rubber compound containing silicon dioxide for the production of tyres, comprising at least one polymer base with cross-linkable unsaturated chain, silicon dioxide, a silane bonding agent, a vulcanization system and lignin comprising, in turn, at least part of its aromatic rings substituted with amine substituents.Type: ApplicationFiled: February 3, 2015Publication date: June 15, 2017Applicant: BRIDGESTONE CORPORATIONInventors: Claudia AURISICCHIO, Valeria GRENCI
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Patent number: 9592704Abstract: A method of producing rubber tire compounds, including a first mixing step in which at least one cross-linkable, unsaturated-chain polymer base, silica, and a silane bonding agent in the alkoxymercaptoalkyl-silane class are mixed together; and a final mixing step in which a curing system having at least sulphur and accelerants is added to and mixed with the mix. A nucleophile compound and zinc oxide are mixed with the polymer base at the first mixing step. And the method includes a second mixing step between the first mixing step and the final mixing step, and in which a silane bonding agent in the polysulphide organosilane class is added to and mixed with the mix from the first mixing step.Type: GrantFiled: December 18, 2013Date of Patent: March 14, 2017Assignee: BRIDGESTONE CORPORATIONInventor: Valeria Grenci
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Patent number: 9399685Abstract: A method of curing a compound having a cross-linkable, unsaturated-chain polymer base and a curing system; the method employing microwaves as a form of energy to promote curing reactions; and the curing system including compounds of general formula (I) ([R1R2R3NR5(NR4R6R7)n](n+1)+)y(n+1)Xy? (I) where: X is an atom or anionic group; R1, R2, R3, which are the same or different, are each CmH2m+1, where m is 1 to 3, or CH2CHCH2 or CHCHCH3, R4, R6, R7, which are the same or different, are each CH2CHCH2 or CHCHCH3; n is 0 or 1; y is 1 when n is 1; y is 1 or 2 when n is 0; R5 is an aliphatic group C15-C22 when n is 0; is an aliphatic group C8-C16 when n is 1; when n is 0, at least one of R1, R2, R3, R5 has a double bond.Type: GrantFiled: June 15, 2012Date of Patent: July 26, 2016Assignee: BRIDGESTONE CORPORATIONInventors: Valeria Grenci, Salvatore Cotugno
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Publication number: 20160168339Abstract: A rubber tyre compound production method having a mixing step, in which at least one cross-linking, unsaturated-chain polymer base, silica, a silane bonding agent, and 0.6 to 5 phr of a chemical of general formula (I) are mixed with one another; and a following mixing step, in which at least stearic acid and a curing system are added to and mixed with the compound being prepared; wherein: R1, R2 and R3, which are the same or different, are chosen from the group consisting of: hydrogen and groups in the alkane, alkene, cycloalkane, heterocyclic compound, aromatic compound, amine, imine, amide, sulphide, alcohol, aldehyde, ketone, ether, ester, nitrile, nitro-derivative, and isocyanate families.Type: ApplicationFiled: July 29, 2014Publication date: June 16, 2016Applicant: BRIDGESTONE CORPORATIONInventors: Valeria GRENCI, Pasquale AGORETTI
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Publication number: 20150329710Abstract: A method of producing rubber tyre compounds, including a first mixing step in which at least one cross-linkable, unsaturated-chain polymer base, silica, and a silane bonding agent in the alkoxymercaptoalkyl-silane class are mixed together; and a final mixing step in which a curing system having at least sulphur and accelerants is added to and mixed with the mix. A nucleophile compound and zinc oxide are mixed with the polymer base at the first mixing step. And the method includes a second mixing step between the first mixing step and the final mixing step, and in which a silane bonding agent in the polysulphide organosilane class is added to and mixed with the mix from the first mixing step.Type: ApplicationFiled: December 18, 2013Publication date: November 19, 2015Applicant: BRIDGESTONE CORPORATIONInventor: Valeria GRENCI
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Patent number: 8997814Abstract: A tire mix containing a cross-linkable, unsaturated-chain polymer base, curing agents, a reinforcing filler, and wax; the wax containing a paraffin wax containing a maximum of 45% by weight of normal paraffin.Type: GrantFiled: August 16, 2011Date of Patent: April 7, 2015Assignee: Bridgestone CorporationInventors: Raffaele Di Ronza, Valeria Grenci
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Publication number: 20140206824Abstract: A method of curing a compound having a cross-linkable, unsaturated-chain polymer base and a curing system; the method employing microwaves as a form of energy to promote curing reactions; and the curing system including compounds of general formula (I) ([R1R2R3NR5 (NR4R6R7)n](n+1)+) y(n+1)Xy? (I) where: X is an atom or anionic group; R1, R2, R3, which are the same or different, are each CmH2m+1, where m is 1 to 3, or CH2CHCH2 or CHCHCH3, R4, R6, R7, which are the same or different, are each CH2CHCH2 or CHCHCH3; n is 0 or 1; y is 1 when n is 1; y is 1 or 2 when n is 0; R5 is an aliphatic group C15-C22 when n is 0; is an aliphatic group C8-C16 when n is 1; when n is 0, at least one of R1, R2, R3, R5 has a double bond.Type: ApplicationFiled: June 15, 2012Publication date: July 24, 2014Applicant: BRIDGESTONE CORPORATIONInventors: Valeria Grenci, Salvatore Cotugno
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Publication number: 20130186544Abstract: A tyre mix containing a cross-linkable, unsaturated-chain polymer base, curing agents, a reinforcing filler, and wax; the wax containing a paraffin wax containing a maximum of 45% by weight of normal paraffin.Type: ApplicationFiled: August 16, 2011Publication date: July 25, 2013Applicant: BRIDGESTONE CORPORATIONInventors: Raffaele Di Ronza, Valeria Grenci