US2554373A - Process for producing glossy coatings on earthenware and metal - Google Patents
Process for producing glossy coatings on earthenware and metal Download PDFInfo
- Publication number
- US2554373A US2554373A US30505A US3050548A US2554373A US 2554373 A US2554373 A US 2554373A US 30505 A US30505 A US 30505A US 3050548 A US3050548 A US 3050548A US 2554373 A US2554373 A US 2554373A
- Authority
- US
- United States
- Prior art keywords
- earthenware
- metal
- weight
- composition
- glossy coatings
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
- C23D5/04—Coating with enamels or vitreous layers by dry methods
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/02—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass
Definitions
- a process for the produc- Linium 921 tion of a glossy coating on a support comprises Cobaltous carbonate 4 applying to the support a composition obtained by fusing together boric acid or boric anhydride and lead. oxide, heating the composition until This mixture is fused, run off and crushed as in the preceding example. When heated, it it vitrifies and then immediately withdrawing gives a glossy black waiting as scan as i the mated quppgrt from thn source of heag a peratnre of 23G-3G0 C.
- Examples are alkaline phos- 40 Escample III nhates or the oxides of zinc, nickel cobalt, tin, r, i .h' re are there hl mire aluminum or silicon employed, either separately 5 y d g Parts or ll).
- combinationun the iorrn of chemically rystamsed b01118 acid 173 pure products or in the Iorm of natural minerals Mimum 92 1 containing these elements, Feldspar kaolin 23 u are particularly favourable agents for retarding ZQZI Q 2 the return to the solid state.
- Example IV Parts Boric acid 17.8 Minium 92.1 Tin oxide 2
- the mixture melts at 300 C. and commences to recrystallise at about 350 C. (in the absence of tin oxide, crystallisation follows shortly after fusion at 300 C.) It then melts in stable fashion at about 450 C.
- Parts Hydrated boric acid 17.8 Minium 92.1 Kaolin 4 The ingredients are fused until completely homogeneous and the resulting composition is run off and cooled. The composition is then crushed and applied to a suitable support. Upon heating, it is found that a glossy and stable coating is formed as soon at a temperature of 300 C. is reached, and this coating can be brought to higher temperatures without destroying the gloss of the coating. In contrast. a similar mixture which does not contain any kaolin is devitrified as soon as it is heated to a temperature slightly 7 above 300 C.
- Process for the production of glossy coatings on supports selected from the class consisting of earthenware and metal supports which comprises applying to the support a layer of a particulate fused composition consisting to the extent of at least 95% by weight of a mixture of lead oxide and boric oxide and to the extent of 0.5 to 5% by weight of a stabilizing agent containing an oxide selected from the class consisting of the oxides of zinc, nickel, cobalt, tin, aluminum and silicon, the ratio of boric oxide to lead oxide in the composition being of the order of 1:9, heating the support thus coated up to the temperature at which the composition first vitrifies and then immediately withdrawingthe coated support from the source of heat.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Glass Compositions (AREA)
- Chemically Coating (AREA)
Description
PROCESS FQR PIEZQBUCING GLOSSY (GUAT- ENGS N AND METAL Al men Francois En land-at, @rly, France, assignor Scci des lllsines Chiini ues Rhone- Poulenc, Faris, .sranee, a French body corporate No 3; [application June 1, 194-8, No. 3il,5ll5. In France June 16, 194i? 2 Claims. (Cl. Ill-23) This invention relates to vitrifiable compcsihut are not in tenfed to limit the invention in tions and to the use such compositions. i these examples all concern The most fusible vitriflable mineral composic t-mich boric anhyrlride and lead tions at present vknown, and in tio of about 1:9, the inventicular in the ceramic industries, glaze at about 5 considered as being limited 500 C. or, at the very lowest, at 450 C 1 proportions, which have only It has now been found, and this forms the because they give the most fusible basis of the present invention, that compositions obtained by the fusion of coric acid or Example I boric anhydride and of lead. oxide in variable proportions can be employed as vitrifiable cornintimately m clI positions at much lower temperatures, in the Parts case of the most fusible compositions as low 9301350 3015:
280 C. It is stated in the literature that when such m are combined by fusion until compositions are slowly heated they have sof- J mlwgeneousg Whereafter the telling g i tempemulres whlcvh Vary m ture is run on" and crushed. The product thus 3 485 c-l1accordlng to me q prepared applied to a metal or ceramic sup- 1011 It P Been found however, f port and it is brought to a temperature of about such 90311395145191 In fact return to the Equld Z0 300 C. As soon as the formation of a glossy state at the said temperatures and th 13 "511% vitrified coating is observed, the article is rapidly action of the temperature f f to even withdrawn from the source of heat. The coata small extent they become devltrlfied and mg remains glossy when eooled' rapidly return to the solid. crystalline state.
In the present invention, use is made of this Emample H phenomenon in order to obtain glossy coatings Th re thoroughly mix d; on supports consisting of metal or the like Parts (glass, ceramics), and according to the present I 17 invention, therefore, a process for the produc- Linium 921 tion of a glossy coating on a support comprises Cobaltous carbonate 4 applying to the support a composition obtained by fusing together boric acid or boric anhydride and lead. oxide, heating the composition until This mixture is fused, run off and crushed as in the preceding example. When heated, it it vitrifies and then immediately withdrawing gives a glossy black waiting as scan as i the mated quppgrt from thn source of heag a peratnre of 23G-3G0 C. is reached and remains It has also been found that the liquid phase glassy 1133.456 0 Beyond which devitnfica" WW be stahiliwd l some eytam. i e the re tion sets in. In contrast, in a mixture containliic suite so I tum to the Solid qtatp may retaadpd by mg no cabal-tons carbonate the oevltrification .7" -.-1-- adding to the compositions small quantities or snbrty aher fusion third substances. Examples are alkaline phos- 40 Escample III nhates or the oxides of zinc, nickel cobalt, tin, r, i .h' re are there hl mire aluminum or silicon employed, either separately 5 y d g Parts or ll). combinationun the iorrn of chemically rystamsed b01118 acid 173 pure products or in the Iorm of natural minerals Mimum 92 1 containing these elements, Feldspar kaolin 23 u are particularly favourable agents for retarding ZQZI Q 2 the return to the solid state.
The optimum proportion of such stabilising Wh n sed, un Off and crushed as hereinbeagents between as and 5 prefgrably t fore described, such a mixture has a zone of pracb t 2%, fact, th favourable ti 1 th tical stability after fusion which ranges from 300 agent in reases i-{ h the pe -gentage which C. to 46$ clystaliises at about 400 and it is employed, but beyond a certain value it returns to the stable liquid state at about 450 brings about a rise in the melting point. (3., whereas when no stabilising agents are em- The following ex in which parts ployed the matting consequent upon crystallisaare by weight, serve to illustrate the invention 55 tion follows shortly after fusion at 300 C.
Example IV Parts Boric acid 17.8 Minium 92.1 Tin oxide 2 When treated as hereinbefore described, the mixture melts at 300 C. and commences to recrystallise at about 350 C. (in the absence of tin oxide, crystallisation follows shortly after fusion at 300 C.) It then melts in stable fashion at about 450 C.
Example V There are thoroughly mixed:
Parts Hydrated boric acid 17.8 Minium 92.1 Kaolin 4 The ingredients are fused until completely homogeneous and the resulting composition is run off and cooled. The composition is then crushed and applied to a suitable support. Upon heating, it is found that a glossy and stable coating is formed as soon at a temperature of 300 C. is reached, and this coating can be brought to higher temperatures without destroying the gloss of the coating. In contrast. a similar mixture which does not contain any kaolin is devitrified as soon as it is heated to a temperature slightly 7 above 300 C.
on supports selected from the class consisting of earthenware and metal supports, which comprises applying to the support a layer of a composition consisting to the extent of at least by weight of a particulate fused mixture of lead oxide and boric oxide substantially in the proportion of 9 parts by weight of the former to 1 part by weight of the latter, heating the composition up to the temperature at which it first vitrifies and then immediately withdrawing the coated support from the source of heat.
2. Process for the production of glossy coatings on supports selected from the class consisting of earthenware and metal supports, which comprises applying to the support a layer of a particulate fused composition consisting to the extent of at least 95% by weight of a mixture of lead oxide and boric oxide and to the extent of 0.5 to 5% by weight of a stabilizing agent containing an oxide selected from the class consisting of the oxides of zinc, nickel, cobalt, tin, aluminum and silicon, the ratio of boric oxide to lead oxide in the composition being of the order of 1:9, heating the support thus coated up to the temperature at which the composition first vitrifies and then immediately withdrawingthe coated support from the source of heat.
AYMON FRANCOIS MAX-CLAUDET.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS
Claims (1)
1. PROCESS FOR THE PRODUCTION OF GLOSSY COATINGS ON SUPPORTS SELECTED FROM THE CLASS CONSISTING OF EARTHENWARE AND METAL SUPPORTS, WHICH COMPRISES APPLYING TO THE SUPPORT A LAYER OF A COMPOSITION CONSISTING TO THE EXTENT OF AT LEAST 95% BY WEIGHT OF A PARTICULATE FUSED MIXTURE OF LEAD OXIDE AND BORIC OXIDE SUBSTANTIALLY IN THE PRO-PORTION OF 9 PARTS BY WEIGHT OF THE FORMER TO 1 PART BY WEIGHT OF THE LATTER, HEATING THE COMPOSITION UP TO THE TEMPERATURE AT WHICH IT FIRST VITRIFIES AND THEN IMMEDIATELY WITHDRAWING THE COATED SUPPORT FORM THE SOURCE OF HEAT.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR816181X | 1947-06-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2554373A true US2554373A (en) | 1951-05-22 |
Family
ID=9267684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US30505A Expired - Lifetime US2554373A (en) | 1947-06-16 | 1948-06-01 | Process for producing glossy coatings on earthenware and metal |
Country Status (5)
Country | Link |
---|---|
US (1) | US2554373A (en) |
BE (1) | BE482349A (en) |
DE (1) | DE816181C (en) |
FR (1) | FR948777A (en) |
GB (1) | GB641855A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3096184A (en) * | 1961-09-20 | 1963-07-02 | Rca Corp | Glass marking ink |
US3247428A (en) * | 1961-09-29 | 1966-04-19 | Ibm | Coated objects and methods of providing the protective coverings therefor |
US3624005A (en) * | 1961-08-29 | 1971-11-30 | Saint Gobain | Graphite-glass compositions and method of making same |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1291597B (en) * | 1961-07-05 | 1969-03-27 | Ritter Pfaudler Corp | Process for the production of a partially crystallized enamel coating on metallic objects |
US7712333B2 (en) * | 2006-03-29 | 2010-05-11 | Asahi Glass Company, Limited | Method for smoothing a surface of a glass substrate for a reflective mask blank used in EUV lithography |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2301741A (en) * | 1940-05-09 | 1942-11-10 | Poor & Co | Coating of metal surfaces |
US2461878A (en) * | 1944-11-01 | 1949-02-15 | Bell Telephone Labor Inc | Metallizing composition |
-
0
- BE BE482349D patent/BE482349A/xx unknown
-
1947
- 1947-06-16 FR FR948777D patent/FR948777A/en not_active Expired
-
1948
- 1948-05-20 GB GB13691/48A patent/GB641855A/en not_active Expired
- 1948-06-01 US US30505A patent/US2554373A/en not_active Expired - Lifetime
-
1950
- 1950-09-09 DE DES19037A patent/DE816181C/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2301741A (en) * | 1940-05-09 | 1942-11-10 | Poor & Co | Coating of metal surfaces |
US2461878A (en) * | 1944-11-01 | 1949-02-15 | Bell Telephone Labor Inc | Metallizing composition |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3624005A (en) * | 1961-08-29 | 1971-11-30 | Saint Gobain | Graphite-glass compositions and method of making same |
US3096184A (en) * | 1961-09-20 | 1963-07-02 | Rca Corp | Glass marking ink |
US3247428A (en) * | 1961-09-29 | 1966-04-19 | Ibm | Coated objects and methods of providing the protective coverings therefor |
Also Published As
Publication number | Publication date |
---|---|
FR948777A (en) | 1949-08-10 |
BE482349A (en) | |
DE816181C (en) | 1951-10-08 |
GB641855A (en) | 1950-08-23 |
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