Title:
廃棄シリコーン硬化物の再利用のための処理方法
Document Type and Number:
Japanese Patent JP3974755
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a processing method to isolate and recover a siloxane compound or an inorganic powder in a short time, by decomposing a waste silicone hardened matter at ordinary temperature. SOLUTION: The processing method for reuse of waste silicone hardened matter is composed of stage (A) to decompose the silicone hardened matter by processing the waste silicone hardened matter, the mixture mainly consisting of it or its complex using an organic sulfonic acid in nonaqueous solvent, stage (B) to neutralize the resulting decomposed mixture by adding water and an alkaline earth metal oxide and/or hydroxide to separate an organic phase containing the siloxane compound, and stage (C) to isolate the siloxane compound from the organic phase.
Inventors:
Eiichi Tabei
Motoo Fukushima
Motoo Fukushima
Application Number:
JP2001155403A
Publication Date:
September 12, 2007
Filing Date:
May 24, 2001
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
C08J11/28; C08L19/00; C08L83/00
Domestic Patent References:
| JP9176364A | ||||
| JP2000508026A | ||||
| JP8208881A | ||||
| JP33003739B1 |
Foreign References:
| DE4300168A1 |
Attorney, Agent or Firm:
Shuji Iwamiya