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:
Jun. 07, 2022
Filed:
Apr. 25, 2019
Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku, JP;
Akinobu Horita, Katsushika-ku, JP;
Toshiyuki Oie, Katsushika-ku, JP;
Takahiro Kikunaga, Katsushika-ku, JP;
Kenji Yamada, Katsushika-ku, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Chiyoda-ku, JP;
Abstract
An aqueous composition may include: (A) a fluoride ion supply source in an amount that gives a fluoride ion concentration of 0.05 to 30 mmol/L in the composition; (B) a cation supply source in an amount that gives a mole ratio of cations of 0.3 to 20 to the fluoride ions in the composition; and (C) 0.0001 to 10 mass % of one or more compounds selected from a Calkylphosphonic acid, a Calkylphosphonate ester, a Calkyl phosphate and a salt thereof, with respect to the total amount of the composition, wherein pH is in a range of from 2 to 6.