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:
Mar. 27, 2018
Filed:
Feb. 10, 2012
Zhixiong You, Yokohama, JP;
Takeshi Minami, Yokohama, JP;
Chikako Hashimoto, Yokohama, JP;
Yoichi Umehara, Yokohama, JP;
Zhixiong You, Yokohama, JP;
Takeshi Minami, Yokohama, JP;
Chikako Hashimoto, Yokohama, JP;
Yoichi Umehara, Yokohama, JP;
CHIYODA CORPORATION, Yokohama-shi, Kanagawa, JP;
Abstract
A vinylpyridine resin that is hardly pulverized and thermally decomposed such that the degradation of the catalytic activity is suppressed while having a pore volume and a specific surface area to maintain a sufficient catalytic activity, and also a method of manufacturing the vinylpyridine resin are provided. The resin represents: a volume ratio of the pores having a diameter of 3 through 5 nm to all the pores of not less than 4% and not more than 60%; a total pore volume of not less than 0.15 cc/g and not more than 0.35 cc/g; and a specific surface area of not less than 20 m/g and not more than 100 m/g. The resin can be manufactured by using a poor solvent and not less than 50 wt % and not more than 90 wt % of a good solvent as porous agent.