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:
Apr. 07, 2015
Filed:
Sep. 28, 2009
Masao Uesaka, Tokyo, JP;
Masao Uesaka, Tokyo, JP;
Sumitomo Bakelite Company, Ltd., Tokyo, JP;
Abstract
A metal-clad phenolic resin laminate obtained by heating and pressing a lamination which comprises: (i) a central layered portion comprising one paper base prepreg which is made of a paper base impregnated with a first phenolic resin composition containing a resol-based resin, or a predetermined number of the paper base prepregs laid on each other; (ii) outer layered portions laid on an upper and a lower sides of the central layered portion, in which each of the outer layered portions comprises one glass fiber substrate prepreg which is made of a glass fiber substrate impregnated with a second phenolic resin composition containing a resol-based resin, or a predetermined number of the glass fiber substrate prepregs laid on each other; and (iii) a metal foil laid at least on one of the outer layered portions laid on the upper and lower sides of the central layered portion.