Large scale production of carbon nanotubes in portland cement

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9085487
APP PUB NO 20110107942A1
SERIAL NO

12990644

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention describes a chemical vapor-phase deposition for carbon nanotube synthesis in which cement clinker is used as a ceramic matrix for anchoring transition-metal nanoparticles. Using cement clinker as nanoparticle anchoring base of transition metals allows carbon nanotubes to be generated on cement clinker particles and grains, in this way producing a kind of cement that is nanostructured with carbon nanotubes. By this process, the carbon nanotube synthesis and integration to clinker are carried out in just one continuous and large-scale stage. The process described herein can be applied to conventional cement industry whose production may be rated as tons per day. The present invention also proposes—as part of the carbon nanotube synthesis on cement clinker—several enrichment alternatives of cement clinker by using transition metals for producing such nanostructured composite, which may or not be integrated to the conventional cement industry.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
UNIVERSIDADE FEDERAL DE MINAS GERAISAV ANTÔNIO CARLOS 6627-UNIDADE ADMINISTRATIVA II - 2º ANDAR- SALA 2011 UNIDADE ADMINISTRATIVA II - 2º ANDAR- SALA 2011 BELO HORIZONTE BELO HORIZONTE 31270-901

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
De, Oliveira Sérgio Sao Joao Batista, BR 2 13
De, Sousa Ávila Erick Ribeiräo das Neves, BR 1 3
Eleto, Da Silva Edelma Belo Horizonte, BR 1 13
Gribel, Lacerda Rodrigo Belo Horizonte, BR 1 13
Lorençon, Eudes Belo Horizonte, BR 1 3
Orlando, Ladeira Luiz Belo Horizonte, BR 1 13
Santarosa, Ferlauto André Belo Horizonte, BR 1 13

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 21, 2027
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00