WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2001000636) PROCESS FOR THE PREPARATION OF CONDENSED PHOSPHORIC ESTERS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/000636 International Application No.: PCT/JP1999/006216
Publication Date: 04.01.2001 International Filing Date: 08.11.1999
Chapter 2 Demand Filed: 07.08.2000
IPC:
C07F 9/12 (2006.01) ,C07F 9/14 (2006.01) ,C09K 21/12 (2006.01)
Applicants: NAKAMURA, Shin[JP/JP]; JP (UsOnly)
NOGUCHI, Kazuo[JP/JP]; JP (UsOnly)
FUJISAWA, Taku[JP/JP]; JP (UsOnly)
OHKAWA, Takafumi[JP/JP]; JP (UsOnly)
DAIHACHI CHEMICAL INDUSTRY CO., LTD.[JP/JP]; Hiranomachi Yachiyo Building 8-13, Hiranomachi 1-chome Chuo-ku Osaka-shi Osaka 541-0046, JP (AllExceptUS)
Inventors: NAKAMURA, Shin; JP
NOGUCHI, Kazuo; JP
FUJISAWA, Taku; JP
OHKAWA, Takafumi; JP
Agent: YAMAMOTO, Shusaku; Crystal Tower 15th floor 2-27, Shiromi 1-chome Chuo-ku, Osaka-shi Osaka 540-6015, JP
Priority Data:
11/18260528.06.1999JP
Title (EN) PROCESS FOR THE PREPARATION OF CONDENSED PHOSPHORIC ESTERS
(FR) PROCEDE DE PREPARATION D'ESTERS PHOSPHORIQUES CONDENSES
Abstract:
(EN) A process for the preparation of condensed phosphoric esters extremely lowered in volatiles content, which comprises the first step of reacting a phosphorus oxytrihalide with a bisphenol to prepare a phosphorohalidate, the second step of removing unreacted phosphorus oxytrihalide, and the third step of reacting the phosphorohalidate with a monophenol at a specific ratio.
(FR) L'invention concerne la préparation d'esters phosphoriques condensés à volatilité extrêmement réduite, qui consiste d'abord à faire réagir un oxytrihalide phosphoré avec un bisphénol, afin de préparer un phosphorohalidate ; ensuite à retirer l'oxytriahalide phosphoré n'ayant pas réagi, et enfin, à faire réagir le phosphorohalidrate avec un monophénol dans un rapport spécifique.
Designated States: CN, JP, KR, US
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)