JPS5710627A - Preparation of polysiloxane with fractionated molecular weight - Google Patents
Preparation of polysiloxane with fractionated molecular weightInfo
- Publication number
- JPS5710627A JPS5710627A JP8616580A JP8616580A JPS5710627A JP S5710627 A JPS5710627 A JP S5710627A JP 8616580 A JP8616580 A JP 8616580A JP 8616580 A JP8616580 A JP 8616580A JP S5710627 A JPS5710627 A JP S5710627A
- Authority
- JP
- Japan
- Prior art keywords
- polysiloxane
- preparation
- molecular weight
- fractionated molecular
- soxhlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Extraction Or Liquid Replacement (AREA)
- Silicon Polymers (AREA)
Abstract
PURPOSE: To obtain the titled polysiloxane having improved heat resistance by a simple operation with a small amount of a solvent, by extracting the polysiloxane with acetone as a circulating solvent using a Soxhlet's extractor.
CONSTITUTION: A polysiloxane, preferably a ladder type organopolysiloxane shown by the formula (R is hydrocarbon, e.g., phenyl, alkyl, etc.; n is integer) is added to a Soxhlet's type extractor and extracted with acetone, to give the desired polysiloxane.
USE: An insulating material, heat-resistance coating material, etc.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8616580A JPS5710627A (en) | 1980-06-24 | 1980-06-24 | Preparation of polysiloxane with fractionated molecular weight |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8616580A JPS5710627A (en) | 1980-06-24 | 1980-06-24 | Preparation of polysiloxane with fractionated molecular weight |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5710627A true JPS5710627A (en) | 1982-01-20 |
Family
ID=13879131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8616580A Pending JPS5710627A (en) | 1980-06-24 | 1980-06-24 | Preparation of polysiloxane with fractionated molecular weight |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5710627A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62283128A (en) * | 1986-06-02 | 1987-12-09 | Oki Electric Ind Co Ltd | Poly(allylsilsesquioxane) and production thereof |
US5063267A (en) * | 1990-11-28 | 1991-11-05 | Dow Corning Corporation | Hydrogen silsesquioxane resin fractions and their use as coating materials |
US5247043A (en) * | 1991-08-06 | 1993-09-21 | Dow Corning Toray Silicone Co., Ltd. | Phenylpolysilsesquioxanes and method for their preparation |
-
1980
- 1980-06-24 JP JP8616580A patent/JPS5710627A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62283128A (en) * | 1986-06-02 | 1987-12-09 | Oki Electric Ind Co Ltd | Poly(allylsilsesquioxane) and production thereof |
JPH0516457B2 (en) * | 1986-06-02 | 1993-03-04 | Oki Electric Ind Co Ltd | |
US5063267A (en) * | 1990-11-28 | 1991-11-05 | Dow Corning Corporation | Hydrogen silsesquioxane resin fractions and their use as coating materials |
US5247043A (en) * | 1991-08-06 | 1993-09-21 | Dow Corning Toray Silicone Co., Ltd. | Phenylpolysilsesquioxanes and method for their preparation |
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