GB747030A - Sound record - Google Patents
Sound recordInfo
- Publication number
- GB747030A GB747030A GB28987/53A GB2898753A GB747030A GB 747030 A GB747030 A GB 747030A GB 28987/53 A GB28987/53 A GB 28987/53A GB 2898753 A GB2898753 A GB 2898753A GB 747030 A GB747030 A GB 747030A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polystyrene
- carbide
- per cent
- parts
- calcium
- 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
- 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
- C08K3/10—Metal compounds
- C08K3/14—Carbides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Polystyrene compositions suitable for making sound records comprise particles of silicon or boron carbide having their sharp edges ground off. A master batch of 50 per cent carbide, of a size between 0.1 and 10 microns, and 50 per cent polystyrene and, preferably, anti-oxidants such as 2,6-di-tert.-butyl paracresol, diphenylparaphenylenediamine or a mixture of monoor di-heptyldiphenylamine and zinc, calcium, magnesium, barium, lead or manganese stearate is milled for an hour, sheeted and granulated. The record composition containing 0.01 to 0.035 parts of carbide to 100 parts of polystyrene may be obtained by premixing dry or in aqueous emulsion, which is then dried, and finally compounding on heated rollers. Waxes, e.g. carnauba, candellila, and microcrystalline wax, wetting agents, e.g. polyethylene glycol oleyl ether, modifiers, e.g. o-, m- or p-terphenyls or chlorinated bi- or polyphenyls, di-, tri-, tetra-, penta- or hexaethylbenzenes, and fillers, e.g. carbon black, calcium carbonate or slate flour, barytes or diatomaceous silica may be included in the composition.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US747030XA | 1952-10-21 | 1952-10-21 | |
US786796XA | 1954-06-14 | 1954-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB747030A true GB747030A (en) | 1956-03-28 |
Family
ID=26755958
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28987/53A Expired GB747030A (en) | 1952-10-21 | 1953-10-20 | Sound record |
GB16511/55A Expired GB786796A (en) | 1952-10-21 | 1955-06-08 | Wax modified polystyrene compositions and process of manufacture |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16511/55A Expired GB786796A (en) | 1952-10-21 | 1955-06-08 | Wax modified polystyrene compositions and process of manufacture |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB747030A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004016791A1 (en) * | 2004-04-06 | 2005-11-10 | Clariant Gmbh | Use of waxes as a lubricant for filled plastics |
-
1953
- 1953-10-20 GB GB28987/53A patent/GB747030A/en not_active Expired
-
1955
- 1955-06-08 GB GB16511/55A patent/GB786796A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB786796A (en) | 1957-11-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Schmidt | The degradation of arginine by Clostridium perfringens (BP6K) | |
GB747030A (en) | Sound record | |
GB865702A (en) | Improvements in or relating to moulding compositions for the manufacture of gramophone records | |
GB790803A (en) | Improvements in or relating to rubber-base adhesives | |
GB574052A (en) | Improvements in the plasticization of rubber and the like | |
GB670750A (en) | Improvements in or relating to the manufacture of carbonaceous moulding compositions | |
GB653546A (en) | Solid base-stock moulding material | |
GB745901A (en) | Improvements relating to polystyrene plastic materials | |
GB621004A (en) | Rubber antioxidants | |
ES202711A1 (en) | Improved improvements in agricultural soil operation systems (Machine-translation by Google Translate, not legally binding) | |
GB791360A (en) | Improved asphalt composition | |
GB539834A (en) | Improvements in or relating to the manufacture of compositions which are not appreciably altered by contact with oil | |
ES401177A1 (en) | Carbon black products and carbon black containing products | |
CA486194A (en) | Gasification of carbonaceous materials containing volatile constituents | |
ES202966A1 (en) | Improvements in obtaining caprºlico-cºpricos ester platters (Machine-translation by Google Translate, not legally binding) | |
GB462691A (en) | Improvements in or relating to blasting devices | |
GB841884A (en) | The production of granules of red lead and/or litharge | |
GB512174A (en) | Improved rubber composition | |
AU163176B2 (en) | Improvements in or relating in plasticized compositions of vinyl resin | |
GB540917A (en) | Improvements in and relating to sponge rubber | |
AU156657B2 (en) | An improved composition for use in manufacture of rubber springs | |
Fulmer | Analogues of cupferron | |
AU1422952A (en) | Improvements in or relating in plasticized compositions of vinyl resin | |
GB456829A (en) | Improvements in or relating to the manufacture of floor coverings and like materials | |
GB414527A (en) | Improvements in and relating to thermoplastic compositions |