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:
Jun. 28, 2011
Filed:
Nov. 29, 2006
Katsuhiko Oshimi, Tokyo, JP;
Shigeru Moteki, Tokyo, JP;
Takao Sunaga, Tokyo, JP;
Masataka Nakanishi, Tokyo, JP;
Sumio Ichimura, Tokyo, JP;
Katsuhiko Oshimi, Tokyo, JP;
Shigeru Moteki, Tokyo, JP;
Takao Sunaga, Tokyo, JP;
Masataka Nakanishi, Tokyo, JP;
Sumio Ichimura, Tokyo, JP;
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
A phenol aralkyl type phenolic resin represented by the general formula (1), wherein the total content of the compounds represented by formulae (2) to (4) is 58 to 92% as determined by GPC and the contents of the compounds represented by formulae (2) to (4) as determined by HPLC satisfy the following relationship: 0.60≦(2a+b)/(2a+2b+2c)≦0.90 wherein a is the content of the compound of formula (2); b is the content of the compound of formula (3); and c is the content of the compound of formula (4).