GB1118553A - Highly filled rigid crack resistant casting composition - Google Patents
Highly filled rigid crack resistant casting compositionInfo
- Publication number
- GB1118553A GB1118553A GB13528/66A GB1352866A GB1118553A GB 1118553 A GB1118553 A GB 1118553A GB 13528/66 A GB13528/66 A GB 13528/66A GB 1352866 A GB1352866 A GB 1352866A GB 1118553 A GB1118553 A GB 1118553A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silicate
- beryl
- lial
- highly filled
- sand
- 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
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- 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
-
- 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
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- 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
- H01B3/002—Inhomogeneous material in general
- H01B3/006—Other inhomogeneous material
-
- 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
- H01B3/40—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 epoxy resins
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
An inorganic filler for glycidyl polyethers of dihydric phenols and of novolacs has a particle size distribution such that (in cumulative %) .<1%..........>420m .0.3-8%..........>250m .14-41%..........>105m .42-68%..........>53m .65-85%..........>10m (fully defined by a group, not shown), and comprises at least 58% by weight of a material having a coefficient of linear thermal expansion not above 8 x 10-6 in./in./ DEG C. Examples of such materials are sand, fused quartz, beryl, and LiAl silicate, which may be mixed with alumina, Zr silicate, or pigments. The preparation of resins by the reaction of epichlorohydrin and NaOH with bisphenol A and with a condensate of paratertiary butylphenol and formaldehyde is described. Conventional curing agents and accelerators can be added.ALSO:An inorganic material having a particle size distribution such that (in cumulative per cent): .<1%.>420m .0.3-8%.>250m .14-41%.>105m .42-68%.>53m .65-85%.>10m and having a coefficient of linear thermal expansion not above 8 x 10-6 in./in./ DEG C., is used as a filler for epoxy resins. The full distribution is defined by a graph (not shown), which shows preferred per cent in each size range. Examples of minerals are sand, fused quartz, beryl and LiAl silicate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44723765A | 1965-04-12 | 1965-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1118553A true GB1118553A (en) | 1968-07-03 |
Family
ID=23775531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13528/66A Expired GB1118553A (en) | 1965-04-12 | 1966-03-28 | Highly filled rigid crack resistant casting composition |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE679398A (en) |
| CH (1) | CH458464A (en) |
| DE (1) | DE1592987A1 (en) |
| GB (1) | GB1118553A (en) |
| SE (1) | SE345759B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1955524C2 (en) * | 1969-11-05 | 1980-10-02 | Siemens Ag, Berlin Und Muenchen, 8000 Muenchen | Cast resin molding compounds for the production of non-combustible electrical components |
| DE2932359A1 (en) * | 1979-08-09 | 1981-02-26 | Siemens Ag | INSULATOR FOR OUTDOOR CLIMATE |
| EP0249827A1 (en) * | 1986-06-13 | 1987-12-23 | BBC Brown Boveri AG | Electric apparatus and method of making the same |
-
1966
- 1966-03-28 GB GB13528/66A patent/GB1118553A/en not_active Expired
- 1966-04-04 DE DE19661592987 patent/DE1592987A1/en active Pending
- 1966-04-05 CH CH498166A patent/CH458464A/en unknown
- 1966-04-06 SE SE4783/66A patent/SE345759B/xx unknown
- 1966-04-12 BE BE679398D patent/BE679398A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH458464A (en) | 1968-06-30 |
| DE1592987A1 (en) | 1971-03-04 |
| BE679398A (en) | 1966-09-16 |
| SE345759B (en) | 1972-06-05 |
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