JPS5690881A - Cold insulator - Google Patents

Cold insulator

Info

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
Application number
JP16692579A
Other languages
Japanese (ja)
Other versions
JPS614867B2 (en
Inventor
Takashi Minoura
Juichi Kasai
Tadao Takase
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Denko KK filed Critical Showa Denko KK
Priority to JP16692579A priority Critical patent/JPS5690881A/en
Publication of JPS5690881A publication Critical patent/JPS5690881A/en
Publication of JPS614867B2 publication Critical patent/JPS614867B2/ja
Granted legal-status Critical Current

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
JP16692579A 1979-12-24 1979-12-24 Cold insulator Granted JPS5690881A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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