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. 07, 2002
Filed:
Dec. 23, 1999
Applicant:
Inventor:
Naka Hirayama, Shizuoka-ken, JP;
Assignee:
Nitto Kogyo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 9/34 ; B05D 5/00 ; B05D 3/02 ;
U.S. Cl.
CPC ...
C08J 9/34 ; B05D 5/00 ; B05D 3/02 ;
Abstract
A porous covering layer is formed on a substrate by applying a reaction mixture containing a polyol, an isocyanate compound, and a pore forming agent including a volatile silicone oil onto a surface of the substrate. The reaction mixture is subjected to a condition under which the polyol reacts with the isocyanate compound.