Title:
ペルオキシエステルの製造方法
Document Type and Number:
Japanese Patent JP4080885
Kind Code:
B2
Abstract:
The present invention relates to a process for the preparation of a peroxyester which can be used in particular in polymerizations, such as the polymerization of vinyl chloride, or in the thermosetting of polyester resins. This process comprises the reaction of a hydroxyhydroperoxide salt with an acid halide or an acid anhydride under the following conditions: the molar ratio Rb of the hydroxyhydroperoxide corresponding to the hydroxyhydroperoxide salt to the acid halide is between 0.5 and 1.5; or alternatively the molar ratio Rb' of the hydroxyhydroperoxide corresponding to the hydroxyhydroperoxide salt to the acid anhydride is between 1.0 and 3.0; the hydroxyhydroperoxide salt was prepared beforehand by reaction of the corresponding hydroxyhydroperoxide with a base according to a molar ratio Ra of the base to the hydroxyhydroperoxide of between 0.5 and 1.5; and this process is carried out in aqueous media. The invention also relates to an aqueous emulsion comprising the peroxyester obtained and to a polymerization process employing a radical initiator comprising this peroxyester.
Inventors:
Grimaldi, Sandra
Jayarai, Guru Sammy
Jayarai, Guru Sammy
Application Number:
JP2002564488A
Publication Date:
April 23, 2008
Filing Date:
February 07, 2002
Export Citation:
Assignee:
Arkema France
International Classes:
C07C409/38; C07C407/00; C07C409/00; C08F2/22; C08F4/34; C08K5/14
Domestic Patent References:
| JP59216870A | ||||
| JP9087246A | ||||
| JP3197456A | ||||
| JP2262556A | ||||
| JP60051169A | ||||
| JP6080627A | ||||
| JP6073111A |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Atsushi Ebiya
Masaya Nishiyama
Takashi Ishida
Tetsuji Koga
Atsushi Ebiya
Masaya Nishiyama