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:
Apr. 20, 1993
Filed:
Sep. 25, 1991
Applicant:
Inventors:
Hiroshi Tateyama, Tosu, JP;
Kinue Tsunematsu, Tosu, JP;
Kunio Kimura, Tosu, JP;
Hideharu Hirosue, Tosu, JP;
Kazuhiko Jinnai, Tosu, JP;
Takashi Furusawa, Tagami, JP;
Assignees:
Co-Op Chemical Co., Ltd., Tokyo, JP;
The Agency of Industrial Science and Technology, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; B22B / ;
U.S. Cl.
CPC ...
423331 ; 423332 ; 4233281 ; 501122 ; 501151 ; 106D / ; 2523 / ; 428363 ;
Abstract
The present invention is a method for producing swellable or nonswellable fluorine mica at a relatively lower temperature by heating a powdery mixture comprising 10 to 35% by weight of an alkali silicofluoride as the main component optionally together with an alkali fluoride and the balance of talc. This fluorine mica is used for pigments, etc.