JPS57201595A - Scale preventing agent for circulating cooling water system - Google Patents

Scale preventing agent for circulating cooling water system

Info

Publication number
JPS57201595A
JPS57201595A JP8611881A JP8611881A JPS57201595A JP S57201595 A JPS57201595 A JP S57201595A JP 8611881 A JP8611881 A JP 8611881A JP 8611881 A JP8611881 A JP 8611881A JP S57201595 A JPS57201595 A JP S57201595A
Authority
JP
Japan
Prior art keywords
scale preventing
long
preventing agent
chain alkane
cooling water
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
JP8611881A
Other languages
Japanese (ja)
Other versions
JPS644838B2 (en
Inventor
Osamu Kamata
Shigeru Sawayama
Koichi Sato
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP8611881A priority Critical patent/JPS57201595A/en
Publication of JPS57201595A publication Critical patent/JPS57201595A/en
Publication of JPS644838B2 publication Critical patent/JPS644838B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a scale preventing agent for circulating cooling water system which has both the scale preventing effect and the anticorrosion effect, by polymerizing the acrylic compounds under the presence of the long-chain alkane thiol and using when necessary the oligomer which is obtained through the hydrolysis.
CONSTITUTION: The monomer[such as (meth)acrylic acid or its Na salt] shown in FormulaI[wherein, R1 represents a hydrogen atom or a methyl group, and X respresents -COOH, COO-M+(M+ donotes a monovalent cation), -CONH2, -C=M or -COOR2(R2 denotes a 1W4C alkyl group optionally containing a hydroxyl group)]is polymerized with use of a radical polymerization starting agent and under the presence of the long-chain alkane thiol (such as octane thiol) shown in formula II (wherein, R3 represents a 8W20C alkyl group). In this case, 1W30wt% (5W20wt% preferable) long-chain alkane chiol is used to the monomer. A polymer thus obtained is directly used as a scale preventing agent. In case the (meth)acrylic acid (chloride) in the polymer is ≤50mol%, thehydrolysis is carried out with use of a monovalent strong basic compound like NaOH, etc. so that the COO content is set ≥50mol%.
COPYRIGHT: (C)1982,JPO&Japio
JP8611881A 1981-06-04 1981-06-04 Scale preventing agent for circulating cooling water system Granted JPS57201595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8611881A JPS57201595A (en) 1981-06-04 1981-06-04 Scale preventing agent for circulating cooling water system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8611881A JPS57201595A (en) 1981-06-04 1981-06-04 Scale preventing agent for circulating cooling water system

Publications (2)

Publication Number Publication Date
JPS57201595A true JPS57201595A (en) 1982-12-10
JPS644838B2 JPS644838B2 (en) 1989-01-26

Family

ID=13877774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8611881A Granted JPS57201595A (en) 1981-06-04 1981-06-04 Scale preventing agent for circulating cooling water system

Country Status (1)

Country Link
JP (1) JPS57201595A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001147096A (en) * 1999-09-09 2001-05-29 Tadahiro Omi Apparatus and method for highly efficiently controlling temperature and humidity of gas
JP2005238230A (en) * 2004-02-25 2005-09-08 Posco Method for improving performance of organic coating for corrosion resistance

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371040A (en) * 1964-05-19 1968-02-27 Rohm & Haas Lubricant and fuel compositions
US3953393A (en) * 1974-01-07 1976-04-27 Basf Wyandotte Corporation Low temperature process for the preparation of graft copolymer dispersions
US4029577A (en) * 1975-11-17 1977-06-14 Betz Laboratories, Inc. Polymers for use in water treatment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371040A (en) * 1964-05-19 1968-02-27 Rohm & Haas Lubricant and fuel compositions
US3953393A (en) * 1974-01-07 1976-04-27 Basf Wyandotte Corporation Low temperature process for the preparation of graft copolymer dispersions
US4029577A (en) * 1975-11-17 1977-06-14 Betz Laboratories, Inc. Polymers for use in water treatment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001147096A (en) * 1999-09-09 2001-05-29 Tadahiro Omi Apparatus and method for highly efficiently controlling temperature and humidity of gas
JP4521847B2 (en) * 1999-09-09 2010-08-11 忠弘 大見 Gas temperature / humidity adjustment device and adjustment method
JP2005238230A (en) * 2004-02-25 2005-09-08 Posco Method for improving performance of organic coating for corrosion resistance

Also Published As

Publication number Publication date
JPS644838B2 (en) 1989-01-26

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