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.:
Date of Patent:
May. 10, 2005
Filed:
Aug. 09, 2000
Hiroyasu Nishida, Kitakyushu, JP;
Naoyuki Enomoto, Kitakyushu, JP;
Michio Komatsu, Kitakyushu, JP;
Abstract
Highly transparent alumina hydrate particles having a large pore volume, having a pore diameter which falls in a specified range and, when formed into a high-concentration dispersion sol, exhibiting a low viscosity are provided. Alumina hydrate particles having a composition represented by the general formula xMO.y(NH)O.AlO.zHO (2×10≦x≦25×10, 0.1×10≦y≦20×10, 0.6≦z≦2.5, M represents an alkali metal; when the alkali metal is in the form of MO, x is the number of moles thereof per mol of AlO; when ammonia is in the form of (NH)O, y is the number of moles thereof per mol of AlO; and z is the number of moles of hydration water (HO) per mol of AlO), the alumina hydrate particles having an average particle diameter of 0.02 to 0.2 μm, a total pore volume of 0.5 to 1.5 ml/g, and a volume of pores whose diameter is from 15 to 30 nm ranging from 0.3 to 1.0 ml/g.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile