GB486878A - Process for the manufacture of rubber conversion products - Google Patents
Process for the manufacture of rubber conversion productsInfo
- Publication number
- GB486878A GB486878A GB33985/36A GB3398536A GB486878A GB 486878 A GB486878 A GB 486878A GB 33985/36 A GB33985/36 A GB 33985/36A GB 3398536 A GB3398536 A GB 3398536A GB 486878 A GB486878 A GB 486878A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rubber
- products
- aldehyde
- acid
- acting
- 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
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
Landscapes
- Chemical & Material Sciences (AREA)
- General 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)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
Rubber reaction products are obtained by heating an aqueous dispersion of rubber in the presence of acid and a protective colloid, with an aldehyde such as formaldehyde or acetaldehyde or substance capable of splitting off an aldehyde such as trioxymethylene or polyoxymethylene under such conditions of time, temperature and acid concentration that substantial isomerization of the rubber, as determined by titrating a solution in carbon tetrachloride with bromine or iodine, or by solubility tests, is avoided. Suitable acids are hydrochloric and sulphuric. The sodium salts of alkylated naphthalene sulphonic acids, saponines, alcohol sulphonates and condensation products of polyethylene polyamines with higher fatty acids, are mentioned as protective colloids. The rubber dispersion may be subjected to a preliminary oxidation, as by hydrogen peroxide. The product is filtered off, washed and dried; it may be vulcanized to produce leather- or linoleum-like products, or used for the production of moulded articles, or as a cork substitute. Amines or phenols may be added to prevent spontaneous ignition, phenol acting also as a softener. Substances having tanning properties are obtained by acting on the products with nitric acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE486878X | 1935-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB486878A true GB486878A (en) | 1938-06-10 |
Family
ID=6543520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33985/36A Expired GB486878A (en) | 1935-12-11 | 1936-12-10 | Process for the manufacture of rubber conversion products |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB486878A (en) |
| NL (1) | NL45722C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2417424A (en) * | 1941-07-23 | 1947-03-18 | Du Pont | Chemical modification of rubber |
| US2439514A (en) * | 1941-07-23 | 1948-04-13 | Du Pont | Composite structures |
| US4542191A (en) * | 1980-05-14 | 1985-09-17 | The Firestone Tire & Rubber Company | Rubber additives derived from guayule resins and compositions containing them |
-
0
- NL NL45722D patent/NL45722C/xx active
-
1936
- 1936-12-10 GB GB33985/36A patent/GB486878A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2417424A (en) * | 1941-07-23 | 1947-03-18 | Du Pont | Chemical modification of rubber |
| US2439514A (en) * | 1941-07-23 | 1948-04-13 | Du Pont | Composite structures |
| US4542191A (en) * | 1980-05-14 | 1985-09-17 | The Firestone Tire & Rubber Company | Rubber additives derived from guayule resins and compositions containing them |
Also Published As
| Publication number | Publication date |
|---|---|
| NL45722C (en) |
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