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. 30, 2002
Filed:
Sep. 05, 1997
Nippon Kodoshi Corporation, Kochi-ken, JP;
Abstract
A separator paper is provided which simultaneously satisfies the requirements to have a high denseness that can prevent internal shortage due to such as the deposition of the zinc oxide dendrite accompanied by not adding mercury, and a high liquid impregnate properties that can improve heavy discharging properties. Said separator paper comprises a dense layer having a certain degree of denseness, and a liquid impregnate layer having a certain degree of liquid impregnate properties, said dense layer and said liquid impregnate layer being integrally laminated, and said dense layer being made by mixing alkali proof cellulose fibers which is applicable for beating with synthetic fibers such that said alkali proof cellulose fibers be included in the range of 20 to 80 weight % with the beating degree of 500 ml to 0 ml at CSF value, and said liquid impregnate layer being made by mixing alkali proof cellulose fibers with synthetic fibers such that said alkali proof cellulose fibers be included in the range of 20 to 80 weight % with the beating degree of more than 700 ml at CSF value.