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. 19, 2020
Filed:
Nov. 02, 2016
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Noriyuki Kato, Tokyo, JP;
Mitsuteru Kondo, Tokyo, JP;
Munenori Shiratake, Tokyo, JP;
Kentaro Ishihara, Tokyo, JP;
Koji Hirose, Tokyo, JP;
Shinya Ikeda, Tokyo, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Abstract
The present invention provides a method for producing a thermoplastic resin by reacting reactants comprising a dihydroxy compound. In this production method, the dihydroxy compound comprises a dihydroxy compound represented by the following formula (1), wherein the total weight of a compound represented by the following formula (A), a compound represented by the following formula (B), and a compound represented by the following formula (C) in the dihydroxy compound is 1,500 ppm or less, based on 100 parts by weight of the dihydroxy compound represented by the formula (1):