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. 20, 1990
Filed:
Jul. 07, 1989
Applicant:
Inventors:
Assignee:
501 Kanebo, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02G / ; D02G / ;
U.S. Cl.
CPC ...
57254 ; 57255 ; 401199 ;
Abstract
The ink occlusion material for writing utensils according to the present invention comprises a fiber bundle of a mixture of an acrylic synthetic fiber and at least one hydrophobic fiber selected from the group consisting of polyester fibers and polypropylene fibers in a weight ratio of 20 to 70: 80 to 30. The two fibers are drawn so as to show a sea-island form in the cross section of said fiber bundle and spot-adhered by the partial melt-adhesion of the acrylic synthetic fiber and the fiber bundle is twisted at a rate of 1 to 30 T/M.