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:
Oct. 29, 2013
Filed:
Feb. 09, 2011
Dein-run Fung, Taipei, TW;
Jung-jen Chuang, Taipei, TW;
Chia-ruey Tsai, Taipei, TW;
Nan Ya Plastics Corporation, Taipei, TW;
Abstract
A hydrogenation process for hydrogenating bisphenol-A-based epoxy resin under low-temperature, low-pressure conditions includes using a hydrogenation reactor that has a gas-distributing agitator functional to introduce and exhaust hydrogen gas and stir liquid reactant, so that hydrogen gas introduced into the hydrogenation reactor can be evenly distributed into a liquid reactant placed into the hydrogenation reactor to make the liquid reactant contain a high level of dissolved hydrogen, which not only enhances activity of an involved hydrogenation catalyst and accelerates hydrogenation reaction, but also allows hydrogenation reaction to be performed in a low-temperature, low-pressure environment. The hydrogenation process improve yield of the hydrogenated bisphenol-A-based epoxy resin to 99.0-99.9%, while significantly reducing building and maintaining costs for the hydrogenation reactor, thus being an economic process.