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:
Sep. 09, 1980
Filed:
Jan. 25, 1979
Applicant:
Inventors:
Kuniaki Hino, Tokyo, JP;
Yasuo Uehara, Iruma, JP;
Yasushi Nishimura, Toyko, JP;
Kazuhiro Watanabe, Ichihara, JP;
Yoshio Okada, Tokyo, JP;
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
260 4214 ; 1063 / ; 1063 / ; 1063 / ; 252421 ; 252428 ; 252444 ; 260 4225 ; 260 4252 ; 521101 ; 521102 ; 521109 ;
Abstract
An absorbant for use in artificial organs which is obtained by mixing and dissolving pitch with an aromatic compound and a polymer or copolymer of a chain hydrocarbon, dispersing the resultant mixture in water giving rise to beads and subjecting these beads to a series of treatments of removing of the aromatic hydrocarbon, infusibilizing, carbonizing and activating.