Title:
ポリビニルピロリドン組成物およびその製造方法
Document Type and Number:
Japanese Patent JP4723271
Kind Code:
B2
Abstract:
A polyvinylpyrrolidone composition in a form of a solid preparation or an aqueous solution, the composition including polyvinylpyrrolidone, ammonia, and a secondary amine, and processes for producing the polyvinylpyrrolidone composition, the first process including heat drying a polyvinylpyrrolidone aqueous solution containing ammonia and a secondary amine to obtain the polyvinylpyrrolidone in a form of a solid preparation, the second process including adding a secondary amine to an aqueous solution containing polyvinylpyrrolidone and ammonia to obtain the polyvinylpyrrolidone composition in a form of an aqueous solution, and the third process including polymerizing N-vinyl-2-pyrrolidone using hydrogen peroxide as a polymerization initiator in a presence of a metal catalyst using ammonia as a promoter in an aqueous medium to obtain the polyvinylpyrrolidone composition in a form of an aqueous solution.
Inventors:
Takashi Miyai
Nakajima Mitsuru
Akio Naka
Nakajima Mitsuru
Akio Naka
Application Number:
JP2005092132A
Publication Date:
July 13, 2011
Filing Date:
March 28, 2005
Export Citation:
Assignee:
Nippon Shokubai Co., Ltd.
International Classes:
C08L39/06; C08F4/10; C08F26/10; C08K3/28; C08K5/17
Domestic Patent References:
| JP2001002880A | ||||
| JP11071414A | ||||
| JP2002155108A | ||||
| JP62062804A | ||||
| JP2003138087A | ||||
| JP2002121217A |
Attorney, Agent or Firm:
Kyuichi Ueki
Tadashi Sugakawa
Osamu Futakuchi
Hiroaki Ito
Tadashi Sugakawa
Osamu Futakuchi
Hiroaki Ito