JPS5718764A - Covering pigment useful as rust inhibitor and its preparation - Google Patents

Covering pigment useful as rust inhibitor and its preparation

Info

Publication number
JPS5718764A
JPS5718764A JP9261780A JP9261780A JPS5718764A JP S5718764 A JPS5718764 A JP S5718764A JP 9261780 A JP9261780 A JP 9261780A JP 9261780 A JP9261780 A JP 9261780A JP S5718764 A JPS5718764 A JP S5718764A
Authority
JP
Japan
Prior art keywords
covering
electrode
suspension
covering layer
pigment
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
JP9261780A
Other languages
Japanese (ja)
Other versions
JPS5836023B2 (en
Inventor
Yujiro Sugawara
Hiroyuki Naito
Kiyoshi Takai
Toshio Honma
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.)
Mizusawa Industrial Chemicals Ltd
Original Assignee
Mizusawa Industrial Chemicals Ltd
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 Mizusawa Industrial Chemicals Ltd filed Critical Mizusawa Industrial Chemicals Ltd
Priority to JP55092617A priority Critical patent/JPS5836023B2/en
Publication of JPS5718764A publication Critical patent/JPS5718764A/en
Publication of JPS5836023B2 publication Critical patent/JPS5836023B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)

Abstract

PURPOSE: The titled covering pigment having improved rust preventive power, adhesivity to film, and coating compound stability, obtained by forming a covering layer with a specific molar composition based on oxide on the surface of inorganic nucleus particles, comprising an oxy acid in the form of (hypo)phosphite in the covering layer.
CONSTITUTION: The surface of inorganic nucleus particles is treated with an aqueous solution or aqueous sol of readily reactive titanium hydrate, and with an aqueous solution of water-soluble metal (hypo)phosphite, so that a covering layer having a molar composition shown by the formula (M is 2W3 valent metal; m is valence of M; a is 0.4W4; b is 0.05W3) based on oxide is formed on the surface of the particles, to give the desired covering pigment. A mixture of a vinyl resin and this covering pigment in a weight ratio 1:1 is suspended in a medium consisting of isopropyl alcohol and water in a weight ratio 24:1 to form 15wt% suspension. The suspension exhibits an oxidation, -reduction voltage ≤400mV 40min after the formation of the suspension, when an glass electrode is used as a reference electrode and a platinum electrode as an electrode to be tested.
COPYRIGHT: (C)1982,JPO&Japio
JP55092617A 1980-07-09 1980-07-09 Manufacturing method of coated pigment Expired JPS5836023B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55092617A JPS5836023B2 (en) 1980-07-09 1980-07-09 Manufacturing method of coated pigment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55092617A JPS5836023B2 (en) 1980-07-09 1980-07-09 Manufacturing method of coated pigment

Publications (2)

Publication Number Publication Date
JPS5718764A true JPS5718764A (en) 1982-01-30
JPS5836023B2 JPS5836023B2 (en) 1983-08-06

Family

ID=14059388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55092617A Expired JPS5836023B2 (en) 1980-07-09 1980-07-09 Manufacturing method of coated pigment

Country Status (1)

Country Link
JP (1) JPS5836023B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219273A (en) * 1982-06-01 1983-12-20 インタ−ナシヨナル・ペイント・パブリツク・リミテイド・カンパニ− Antirust paint

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431765A (en) * 1977-08-15 1979-03-08 Sharp Corp Liquid crystal display device
JPS5512516A (en) * 1978-07-07 1980-01-29 Sharp Corp Head access system in video reproducing unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431765A (en) * 1977-08-15 1979-03-08 Sharp Corp Liquid crystal display device
JPS5512516A (en) * 1978-07-07 1980-01-29 Sharp Corp Head access system in video reproducing unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219273A (en) * 1982-06-01 1983-12-20 インタ−ナシヨナル・ペイント・パブリツク・リミテイド・カンパニ− Antirust paint
JPH051310B2 (en) * 1982-06-01 1993-01-07 Intaanashonaru Peinto Plc

Also Published As

Publication number Publication date
JPS5836023B2 (en) 1983-08-06

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