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. 14, 2000
Filed:
Oct. 14, 1998
Applicant:
Inventor:
Yasuhiro Matsuda, Niitsu, JP;
Assignee:
Nikki Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428404 ; 428403 ; 106626 ; 106632 ;
Abstract
There are provided an ultraviolet-cutoff material comprising a material, capable of cutting off ultraviolet light, coated with a clay mineral, and a process for preparing an ultraviolet-cutoff material, comprising the steps of dispersing a clay mineral in a medium, dispersing a material capable of cutting off ultraviolet light in a medium, mixing the two dispersion liquids prepared in the steps a) and b) together to coat the material capable of cutting off ultraviolet light with the mixture, subjecting the mixture to solid-liquid separation and heating the solid matter provided in the step d).