The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6962623 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 08, 2005

Filed:

Feb. 19, 2001
Applicants:

Hiroyoshi Matsuyama, Fuji, JP;

Kunio Matsui, Fuji, JP;

Tadashi Shimizu, Fuji, JP;

Inventors:

Hiroyoshi Matsuyama, Fuji, JP;

Kunio Matsui, Fuji, JP;

Tadashi Shimizu, Fuji, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B014/04 ;
U.S. Cl.
CPC ...
Abstract

Disclosed is a cured form of calcium silicate, mainly comprising tobermorite and exhibiting a powder X-ray diffraction pattern in which the diffraction peak intensity Ib ascribed to the (220) plane of the tobermorite and the minimum diffraction intensity Ia observed in the diffraction angle range between the two diffraction peaks respectively ascribed to the (220) plane and (222) plane of the tobermorite satisfy the relationship Ib/Ia≧3.0; a differential pore distribution curve obtained by mercury porosimetry in which the logarithmic width of the pore diameter distribution as measured at a height of ¼ of the height of the maximum peak of the differential pore distribution curve is from 0.40 to 1.20, and also disclosed is a reinforced calcium silicate composite structure, and methods for producing same. The cured form of calcium silicate and the reinforced calcium silicate composite structure of the present invention which, while exhibiting an apparent specific gravity of from 0.14 to 1.0 (and, hence, having a light weight), exhibit excellent properties as a building material, such as a high strength, a high modulus of elasticity, a high resistance to the neutralization reaction, a high dimensional stability, and a high resistance to chipping.


Find Patent Forward Citations

Matsuyama, Hiroyoshi. (2005). Hardened calcium silicate having high strength (U.S. Patent No. 6962623). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6962623

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