GB1444061A - Coating - Google Patents
CoatingInfo
- Publication number
- GB1444061A GB1444061A GB2487374A GB2487374A GB1444061A GB 1444061 A GB1444061 A GB 1444061A GB 2487374 A GB2487374 A GB 2487374A GB 2487374 A GB2487374 A GB 2487374A GB 1444061 A GB1444061 A GB 1444061A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silane
- suspension
- coating
- quartz
- ceramic substrate
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0016—Plasticisers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Paints Or Removers (AREA)
Abstract
1444061 Insulating coatings WELWYN ELECTRIC Ltd 5 June 1974 [4 April 1974] 24873/74 Heading B2E [Also in Division C3] Electrical resistors are provided with a flameproof insulating protective coating by applying a suspension comprising (i) a mixture consisting of 2-20% wt of a polymerisable organosilane having at least one hydrolysable radical and 98-80% wt of a powdered inorganic siliceous material capable of coupling or otherwise reacting with the silane with the proviso that up to 30% wt of the siliceous material may be replaced by one or more substances selected from suspension agents, pigments and other compatible additives e.g. resins and fillers, and (ii) a liquid diluent, evaporating off the diluent and then curing the coating by heating e.g. to 100‹-200‹C. The preferred silane has the formula (Silane A). Suitable siliceous materials are crystalline silica, a silicate, quartz, steatite, porcelain, silicate glass, mica and/or asbestos. Suitable liquids are water, ethanol, methanol, acetone, methyl "Oxitol" (RTM) and/or isopropyl alcohol. Mixture (i) may comprise up to 20% wt of an organopolysiloxane resin. In example 1 a cylindrical resistor comprising a ceramic substrate fitted with metal terminal leads and having a nickel-chromium wire resistance element wound thereon is provided with a coating prepared from a suspension comprising silane A, powdered electrical porcelain, finely ground quartz, Cr 2 O 3 pigment and water. In example 2 a cylindrical resistor comprising a ceramic substrate having a tin oxide resistive film and metallic terminals is provided with a coating prepared from a suspension comprising silane A, quartz powder, asbestine suspending agent, red iron oxide pigment, a methylphenylpolysiloxane resin and isopropyl alcohol.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT50117/74A IT1005936B (en) | 1974-04-04 | 1974-04-04 | INSULATING COMPOSITION AND ELECTRIC RESISTANT PROTECTED WITH THE SAID COMPOSITION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1444061A true GB1444061A (en) | 1976-07-28 |
Family
ID=11272304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2487374A Expired GB1444061A (en) | 1974-04-04 | 1974-06-05 | Coating |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB1444061A (en) |
| IT (1) | IT1005936B (en) |
-
1974
- 1974-04-04 IT IT50117/74A patent/IT1005936B/en active
- 1974-06-05 GB GB2487374A patent/GB1444061A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT1005936B (en) | 1976-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |