JP2001072967A5 - - Google Patents

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Publication number: JP2001072967A5
Authority: JP; Japan
Prior art keywords: component; comparative example; contain; composition according; aluminum
Prior art date: 1999-09-02
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

JP1999248210A

Other languages

English (en)

Other versions

JP3941030B2 (ja

JP2001072967A (ja

Filing date

1999-09-02

Publication date

2004-09-09

1999-09-02 Application filed filed Critical

1999-09-02 Priority to JP24821099A priority Critical patent/JP3941030B2/ja

1999-09-02 Priority claimed from JP24821099A external-priority patent/JP3941030B2/ja

2000-08-28 Priority to DE60011717T priority patent/DE60011717T2/de

2000-08-28 Priority to EP00118606A priority patent/EP1081250B1/en

2000-09-01 Priority to US09/654,375 priority patent/US6508951B1/en

2001-03-21 Publication of JP2001072967A publication Critical patent/JP2001072967A/ja

2004-09-09 Publication of JP2001072967A5 publication Critical patent/JP2001072967A5/ja

2007-07-04 Application granted granted Critical

2007-07-04 Publication of JP3941030B2 publication Critical patent/JP3941030B2/ja

2019-09-02 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

230000000052 comparative effect Effects 0.000 description 6
WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
229910052782 aluminium Inorganic materials 0.000 description 4
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
238000005260 corrosion Methods 0.000 description 4
229910052751 metal Inorganic materials 0.000 description 4
239000002184 metal Substances 0.000 description 4
239000005711 Benzoic acid Substances 0.000 description 2
235000010233 benzoic acid Nutrition 0.000 description 2
238000005536 corrosion prevention Methods 0.000 description 2
239000008233 hard water Substances 0.000 description 2

Description

【００１９】
【実施例】
以下に本発明の組成物をさらに詳しく説明する。下記表１には、本発明の好ましい実施例を示すとともに、比較として、（Ａ）成分と（Ｂ）成分が含まれず、これらに代えて安息香酸を含んでいる例を比較例１とし、（Ｄ）成分及び（Ｃ）成分を含まない例を比較例２とし、（Ｃ）成分のみを含まない例を比較例３としてそれぞれ示した。

【００２３】
【表４】

表２〜表４から、（Ａ）成分と（Ｂ）成分が含まれず、これらに代えて安息香酸を含んでいる比較例１に係る組成物が、硬水成分の存在下で腐食防止機能が低下して、アルミニウムに金属腐食が生じ、（Ｄ）成分及び（Ｃ）成分を含まない例を比較例２に係る組成物が、アルミニウムに黒変を生じ、（Ｃ）成分のみを含まない比較例３に係る組成物が、アルミニウムの伝熱面における金属の腐食が生じているのに対し、実施例に係る組成物にあっては、硬水成分の存在下でも腐食防止機能が低下せずに優れた金属腐食防止性を有していること、アルミニウムの黒変を引き起こさないこと、さらにはアルミニウムの伝熱面における金属腐食防止性に優れることが確認された。

JP24821099A 1999-09-02 1999-09-02 低リン系冷却液組成物 Expired - Lifetime JP3941030B2 (ja)

Priority Applications (4)

Application Number	Priority Date	Filing Date	Title
JP24821099A JP3941030B2 (ja)	1999-09-02	1999-09-02	低リン系冷却液組成物
DE60011717T DE60011717T2 (de)	1999-09-02	2000-08-28	Phosphorarme Kühlmittelzusammensetzung
EP00118606A EP1081250B1 (en)	1999-09-02	2000-08-28	Low phosphorus coolant composition
US09/654,375 US6508951B1 (en)	1999-09-02	2000-09-01	Low P type coolant composition

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP24821099A JP3941030B2 (ja)	1999-09-02	1999-09-02	低リン系冷却液組成物

Publications (3)

Publication Number	Publication Date
JP2001072967A JP2001072967A (ja)	2001-03-21
JP2001072967A5 true JP2001072967A5 (ja)	2004-09-09
JP3941030B2 JP3941030B2 (ja)	2007-07-04

Family

ID=17174832

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP24821099A Expired - Lifetime JP3941030B2 (ja)	1999-09-02	1999-09-02	低リン系冷却液組成物

Country Status (4)

Country	Link
US (1)	US6508951B1 (ja)
EP (1)	EP1081250B1 (ja)
JP (1)	JP3941030B2 (ja)
DE (1)	DE60011717T2 (ja)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1087004A1 (en) *	1999-07-16	2001-03-28	Texaco Development Corporation	Synergistic combinations of carboxylates for use as freezing point depressants and corrosion inhibitors in heat transfer fluids
JP2002294227A (ja) *	2001-03-29	2002-10-09	Komatsu Ltd	不凍液／冷却液組成物
WO2005006476A1 (ja)	2003-07-11	2005-01-20	Shishiai-Kabushikigaisha	燃料電池用冷却液組成物
CN100584919C (zh)	2003-10-01	2010-01-27	Cci株式会社	冷却液组合物
WO2005037951A1 (ja) *	2003-10-16	2005-04-28	Shishiai-Kabushikigaisha	冷却液組成物
AU2003296104A1 (en) *	2003-10-16	2005-05-05	Shishiai-Kabushikigaisha	Cooling fluid composition
WO2005052086A1 (ja) *	2003-11-26	2005-06-09	Shishiai-Kabushikigaisha	冷却液組成物
WO2005054396A1 (ja) *	2003-12-01	2005-06-16	Shishiai-Kabushikigaisha	冷却液組成物
AU2003284506A1 (en) *	2003-12-01	2005-06-24	Shishiai-Kabushikigaisha	Coolant composition
WO2005063917A1 (ja) *	2003-12-25	2005-07-14	Shishiai-Kabushikigaisha	冷却液組成物
JP4671326B2 (ja) *	2004-08-04	2011-04-13	株式会社Ａｄｅｋａ	不凍液組成物
JPWO2006046275A1 (ja) *	2004-10-25	2008-05-22	シーシーアイ株式会社	不凍液／冷却液組成物
US7638069B2 (en) *	2005-12-29	2009-12-29	Texaco Inc.	Potassium propionates for use as freezing point depressants and corrosion protection in heat transfer fluids
US9115302B2 (en)	2012-09-05	2015-08-25	Chevron U.S.A. Inc.	Coolant having rapid metal passivation properties
JP7017612B1 (ja)	2020-08-13	2022-02-08	トヨタ自動車株式会社	冷却液組成物

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4452715A (en) *	1982-10-25	1984-06-05	Basf Wyandotte Corporation	High pH coolant containing carbonate ion
US4501667A (en) *	1983-03-03	1985-02-26	Ciba-Geigy Corporation	Process of inhibiting corrosion of metal surfaces and/or deposition of scale thereon
GB8606901D0 (en) *	1986-03-20	1986-04-23	Shell Int Research	Corrosion-inhibiting heat-transfer composition
DE3708298A1 (de) *	1987-03-14	1988-09-22	Basf Ag	Nitrit- und phosphatfreie kuehlstoffmischungen auf glykolbasis
JPH0674415B2 (ja) *	1989-05-01	1994-09-21	シーシーアイ株式会社	冷却液組成物
JPH06116764A (ja) *	1992-10-07	1994-04-26	Echiren Chem Kk	不凍液組成物
US5718836A (en) *	1994-05-12	1998-02-17	Japan Chemical Industries Co., Ltd.	Liquid coolant compositions with anti-corrosive property containing magnesium and calcium compounds
JP3028182B2 (ja) *	1994-10-13	2000-04-04	シーシーアイ株式会社	冷却液組成物
JP3790860B2 (ja) *	1996-03-28	2006-06-28	シーシーアイ株式会社	冷却液組成物

1999
- 1999-09-02 JP JP24821099A patent/JP3941030B2/ja not_active Expired - Lifetime
2000
- 2000-08-28 DE DE60011717T patent/DE60011717T2/de not_active Expired - Lifetime
- 2000-08-28 EP EP00118606A patent/EP1081250B1/en not_active Expired - Lifetime
- 2000-09-01 US US09/654,375 patent/US6508951B1/en not_active Expired - Lifetime

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