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:
Nov. 28, 2000
Filed:
Mar. 09, 1998
Applicant:
Inventor:
Takashi Kashiba, Kanagawa-ken, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435243 ; 435244 ; 435260 ; 435801 ; 25218828 ;
Abstract
An oxygen absorber is provided which is obtainable by mixing 10 to 60 parts by weight of a particulate thermoplastic resin having a softening point of 90 to 125.degree. C. and a particle diameter of 1 to 500 .mu.m with 100 parts by weight of an oxygen absorbing composition containing an ascorbic acid compound, water and an activated carbon. The oxygen absorber can inhibit overheat to prevent spontaneous ignition. Further, the activated carbon has a particle diameter of 0.1 to 2 mm and the ascorbic acid compound includes L-ascorbic acid, sodium L-ascorbate, calcium L-ascorbate and sodium D-iso-ascorbate.