JPS5690881A - Cold insulator - Google Patents
Cold insulatorInfo
- Publication number
- JPS5690881A JPS5690881A JP16692579A JP16692579A JPS5690881A JP S5690881 A JPS5690881 A JP S5690881A JP 16692579 A JP16692579 A JP 16692579A JP 16692579 A JP16692579 A JP 16692579A JP S5690881 A JPS5690881 A JP S5690881A
- Authority
- JP
- Japan
- Prior art keywords
- bridged
- cold insulator
- meth
- acrylic acid
- alkali metal
- 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.)
- Granted
Links
Abstract
PURPOSE: To obtain a cold insulator having excellent cold insulating property and a high flexibility at low temperatures from a bridged type polymer obtained by the polymerization of an alkali metal salt, etc., of (meth)acrylic acid in the presence of a specific bifunctional compound.
CONSTITUTION: A mixture of at least one ethylenic monomer (e.g., sodium acrylate) selected from a alkali metal salts of (meth)acrylic acid, as the main component, and another ethylenic unsaturated monomer copolymerizable with said ethylenic monomer is polymerized in the presence of at least one bifunctional compound selected from the compounds of formulas I, II, and III (where R is H or metchyl group, X is H, Cl, or Br, and l, m and n are each 5W100) to manufacture a bridged polymer. Then, 0.1W10pts.wt. said bridged polymer thus obtained is added to 100pts.wt. water to obtain an objective cold insulator.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16692579A JPS5690881A (en) | 1979-12-24 | 1979-12-24 | Cold insulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16692579A JPS5690881A (en) | 1979-12-24 | 1979-12-24 | Cold insulator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5690881A true JPS5690881A (en) | 1981-07-23 |
JPS614867B2 JPS614867B2 (en) | 1986-02-13 |
Family
ID=15840193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16692579A Granted JPS5690881A (en) | 1979-12-24 | 1979-12-24 | Cold insulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5690881A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5017300A (en) * | 1989-08-03 | 1991-05-21 | E. I. Du Pont De Nemours And Company | Compositions and process for use in refrigeration |
-
1979
- 1979-12-24 JP JP16692579A patent/JPS5690881A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5017300A (en) * | 1989-08-03 | 1991-05-21 | E. I. Du Pont De Nemours And Company | Compositions and process for use in refrigeration |
Also Published As
Publication number | Publication date |
---|---|
JPS614867B2 (en) | 1986-02-13 |
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