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:
Feb. 20, 2001
Filed:
Aug. 28, 1997
Applicant:
Inventors:
Assignee:
Lintec Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/70 ; A01N 2/534 ; A61L 1/516 ;
U.S. Cl.
CPC ...
A61K 9/70 ; A01N 2/534 ; A61L 1/516 ;
Abstract
A blackhead-removing face pack sheet with superior ease of use and blackhead-removing capacity is provided. The blackhead-removing face pack sheet,is formed from a laminate which comprises a gas-permeable and flexible base layer,and a pack material layer,the primary component of which is a copolymer of vinyl acetate and N-vinyl-2-pyrrolidone. The base layer,comprises a porous material such as a nonwoven fabric, and part of it is impregnated or embedded with the pack material constituting the pack material layer,This gives a high force of adhesion between the base layer,and the pack material layer