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:
Dec. 01, 2020
Filed:
Mar. 13, 2019
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Takeshi Nakamura, Chiyoda-ku, JP;
Yoshie Takami, Chiyoda-ku, JP;
Tomoko Maeda, Chiyoda-ku, JP;
Naoko Sumitani, Chiyoda-ku, JP;
Hiroki Shibata, Chiyoda-ku, JP;
Toshiki Monden, Chiyoda-ku, JP;
MITSUBISHI CHEMICAL CORPORATION, Chiyoda-ku, JP;
Abstract
The present invention provides a polyhydric phenol compound which has an excellent alkali resistance and which does not cause a deterioration in color even when used as a resin raw material or a color developer. The polyhydric phenol compound includes: a bisphenol compound (A) represented by the following Formula (1) and a trisphenol compound (B) represented by the following Formula (2): [wherein Rrepresents a monovalent aliphatic hydrocarbon group having from 6 to 24 carbon atoms; each of R, R, R, Rand Rrepresents a monovalent hydrocarbon group having from 1 to 15 carbon atoms; and each of a, b, c, d and e represents an integer from 0 to 4];