GB836201A - Semi-ebonites - Google Patents
Semi-ebonitesInfo
- Publication number
- GB836201A GB836201A GB2830156A GB2830156A GB836201A GB 836201 A GB836201 A GB 836201A GB 2830156 A GB2830156 A GB 2830156A GB 2830156 A GB2830156 A GB 2830156A GB 836201 A GB836201 A GB 836201A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rubber
- natural
- compound
- weight
- light
- 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
- C08K3/02—Elements
- C08K3/06—Sulfur
-
- 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
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/37—Thiols
- C08K5/378—Thiols containing heterocyclic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Light-coloured semi-ebonites are obtained by vulcanizing a natural or synthetic rubber stock containing a light-coloured filler, e.g. titanium dioxide, barytes, zinc oxide, whiting or clay, with a compound which liberates sulphur during the vulcanization process, elementary sulphur being absent or insufficient to cause discoloration, i.e. in general less than 5% by weight. The preferred amount of sulphurliberating compound is 5 to 25% by weight of the rubber, suitable compounds being organic polysulphides, e.g. N,N1-dithiomorpholine and tetra-alkyl thiuram disulphides. The rubber stock may comprise, in addition to natural or synthetic rubber, e.g. polymers and copolymers of 1 : 3-butadienes, a synthetic resin material, e.g. a polymer or copolymer of styrene, or phenol formaldehyde, in the place of part of the rubber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2830156A GB836201A (en) | 1956-09-17 | 1956-09-17 | Semi-ebonites |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2830156A GB836201A (en) | 1956-09-17 | 1956-09-17 | Semi-ebonites |
Publications (1)
Publication Number | Publication Date |
---|---|
GB836201A true GB836201A (en) | 1960-06-01 |
Family
ID=10273470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2830156A Expired GB836201A (en) | 1956-09-17 | 1956-09-17 | Semi-ebonites |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB836201A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2483440A1 (en) * | 1980-05-31 | 1981-12-04 | Metzeler Kautschuk | VULCANIZABLE RUBBER MIXTURE AND METHOD OF VULCANIZING SUCH A RUBBER MIXTURE |
WO1996036660A1 (en) * | 1995-05-20 | 1996-11-21 | Henkel Teroson Gmbh | Heat-setting rubber foams with high structural strength |
-
1956
- 1956-09-17 GB GB2830156A patent/GB836201A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2483440A1 (en) * | 1980-05-31 | 1981-12-04 | Metzeler Kautschuk | VULCANIZABLE RUBBER MIXTURE AND METHOD OF VULCANIZING SUCH A RUBBER MIXTURE |
WO1996036660A1 (en) * | 1995-05-20 | 1996-11-21 | Henkel Teroson Gmbh | Heat-setting rubber foams with high structural strength |
US5994422A (en) * | 1995-05-20 | 1999-11-30 | Henkel-Teroson Gmbh | Hot-curing rubber foams with high structural strength |
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