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:
Apr. 08, 2008
Filed:
Feb. 18, 2005
Michiyuki Kono, Neyagawa, JP;
Manabu Kikuta, Kyotanabe, JP;
Masaki Tezuka, Kusatsu, JP;
Hiroshi Tanaka, Kobe, JP;
Takao Yokohashi, Higashiomi, JP;
Takao Nishihata, Otsu, JP;
Kazuhiko Murata, Suita, JP;
Taketo Toba, Takarazuka, JP;
Fumihide Tamura, Kusatsu, JP;
Ritsuo Kitada, Takatsuki, JP;
Michiyuki Kono, Neyagawa, JP;
Manabu Kikuta, Kyotanabe, JP;
Masaki Tezuka, Kusatsu, JP;
Hiroshi Tanaka, Kobe, JP;
Takao Yokohashi, Higashiomi, JP;
Takao Nishihata, Otsu, JP;
Kazuhiko Murata, Suita, JP;
Taketo Toba, Takarazuka, JP;
Fumihide Tamura, Kusatsu, JP;
Ritsuo Kitada, Takatsuki, JP;
Dai-ichi Kogyo Seiyaku Co., Ltd., Kyoto, JP;
Nippon Shokubai Co., Ltd., Osaka, JP;
Abstract
To efficiently dry it, a nonionic alkylene oxide-type water-soluble resin is put into a container, then the container is degassed to a prescribed vacuum degree which is maintained while a dry gas having a dew point not higher than prescribed is introduced into the container at a rate not lower than prescribed. Minor volatiles are efficiently removed from the resin in an evaporation tank having a stirring blade. For protecting the dried resin from water, a dry gas is introduced into and air is purged from an empty packaging container whereafter the resin is charged into the container is sealed. By controlling solvent content and visocity of the resin and loading it into a temperature-controlled transportation container and/or unloading it out of the transportation container by the use of a pump, good subsquent processability of the resin and prevention of deterioration thereof are ensured.