GB1467506A - Coated pigment composition - Google Patents
Coated pigment compositionInfo
- Publication number
- GB1467506A GB1467506A GB2311574A GB2311574A GB1467506A GB 1467506 A GB1467506 A GB 1467506A GB 2311574 A GB2311574 A GB 2311574A GB 2311574 A GB2311574 A GB 2311574A GB 1467506 A GB1467506 A GB 1467506A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pigment
- sio
- coating
- lead
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
- C09C3/063—Coating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/14—Compounds of lead
- C09C1/20—Lead chromate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
1467506 Glass coated pigments MIZUSAWA KAGAKU KOGYO KK 23 May 1974 [23 May 1973] 23115/74 Heading C4A [Also in Division Cl] A pigment composition having improved abrasion resistance consists of particles composed mainly of an inorganic colour pigment and a continuous solid glass coating covering the surface of said pigment, said coating being formed of a continuous phase composed mainly of an alkali metal polysilicate having an M 2 O : SiO 2 molar ratio of 1 : 5 to 1: 2 wherein M stands for an alkali metal, in which the coating is present in an amount of 3 to 40% by weight based on the pigment particles (as SiO 2 ) and the specific surface area ratio R s , which is the ratio of the surface area of the coated pigment particles to that of the uncoated pigment particles, is at most 1À07. The pigment compositions are suitably made by wetting the pigment particles with an aqueous solution of an alkali metal polysilicate of formula M 2 O . n-SiO 2 where n is 2-5, preferably having a pH of at least 11 and preferably a concentration of 0À5 to 10% by weight as SiO 2 and then drying by evaporation. The process may be repeated several times until the desired coating is achieved. The glass coating preferably comprises 10 to 30% by weight of the pigment and has a glass transition point ranging from 400‹ to 500‹ C. The pigment may be lead chromate or mixtures thereof with lead sulphate and/or lead molybdate, tri-lead tetroxide, cadmium yellow, cadmium red, cadmium mercury red, cobalt violet, ultramarine, prussian blue, chrome green or chrome red.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5674273A JPS507823A (en) | 1973-05-23 | 1973-05-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1467506A true GB1467506A (en) | 1977-03-16 |
Family
ID=13035967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2311574A Expired GB1467506A (en) | 1973-05-23 | 1974-05-23 | Coated pigment composition |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS507823A (en) |
DE (1) | DE2424599A1 (en) |
GB (1) | GB1467506A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5495632A (en) * | 1978-01-12 | 1979-07-28 | Toho Ganriyou Kogyo Kk | Ultramarine blue composition and its production |
JPS62100559A (en) * | 1985-10-25 | 1987-05-11 | Maruwa Kogeisha:Kk | Coated phosphorescent pigment and production thereof |
JPS62198241U (en) * | 1986-06-09 | 1987-12-17 | ||
DE3809937A1 (en) * | 1988-03-24 | 1989-10-05 | Sf Vollverbundstein | PROCESS FOR PRODUCING BUILDING MATERIALS WITH COLORING PROPERTIES |
EP0777633A1 (en) * | 1995-06-08 | 1997-06-11 | Saint-Gobain Vitrage | Curable squeegee paste for printing on glass surfaces, and method for making same |
DE19520964A1 (en) * | 1995-06-08 | 1996-12-12 | Inst Neue Mat Gemein Gmbh | Coated inorganic pigments, process for their preparation and their use |
DE19525658C1 (en) * | 1995-07-14 | 1996-11-28 | Sekurit Saint Gobain Deutsch | Stovable printing paste used for decoration of glass surfaces |
JP2002105354A (en) * | 2000-09-29 | 2002-04-10 | Catalysts & Chem Ind Co Ltd | Ultramarine composition and method for producing the same |
-
1973
- 1973-05-23 JP JP5674273A patent/JPS507823A/ja active Pending
-
1974
- 1974-05-21 DE DE19742424599 patent/DE2424599A1/en not_active Withdrawn
- 1974-05-23 GB GB2311574A patent/GB1467506A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2424599A1 (en) | 1974-12-12 |
JPS507823A (en) | 1975-01-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |