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:
May. 13, 2003
Filed:
Jun. 07, 1999
Masaru Hoshi, Kanagawa-ken, JP;
Hideaki Okabe, Kanagawa-ken, JP;
Lintec Corporation, , JP;
Abstract
A blackhead removing agent, a blackhead removing sheet and a method for producing the blackhead removing sheet are disclosed. The blackhead removing sheet comprises a base layer which is composed of a nonwoven fabric having the fineness of 0.0001 denier or more but less than 0.1 denier, and a blackhead removing layer consisting of the blackhead removing agent that contains a water-soluble macromolecular compound as a primary component. The blackhead removing agent comprises a water-soluble macromolecular compound, a filler, and a plasticizer that is compatible with the water-soluble macromolecular compound. The amount of the plasticizer in the blackhead removing agent is less than 0.01 parts by weight with respect to 100 parts by weight of the water-soluble macromolecular compound. The water-soluble macromolecular compound preferably includes a copolymer of N-vinyl-2-pyrrolidone and vinyl acetate as a primary component.