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:
Mar. 29, 1994
Filed:
Aug. 29, 1991
Applicant:
Inventors:
Zenji Hagiwara, Shiga, JP;
Masao Okubo, Hyogo, JP;
Assignees:
Hagiwara Research Corp., Kusatsu, JP;
Japan Electronic Materials Corporation, Amagasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; B32B / ;
U.S. Cl.
CPC ...
424409 ; 556 10 ; 424630 ; 424652 ; 424653 ; 424641 ; 424644 ; 424489 ; 424497 ; 424684 ; 428403 ; 428198 ;
Abstract
A silica gel based heat-resistant and weatherproof antimicrobial composition having an aluminosilicate layer on the surfaces of pores in the silica gel as substituted by silver and an optional antimicrobial metal, said composition containing ion-exchangeable metals that are chiefly an alkali metal and that are present in an amount of up to 2.57 mmol per gram of said composition on an anhydrous basis.