GB580189A - Improvements relating to sulphur-containing compounds or compositions and methods of making the same - Google Patents

Improvements relating to sulphur-containing compounds or compositions and methods of making the same

Info

Publication number
GB580189A
GB580189A GB1146444A GB1146444A GB580189A GB 580189 A GB580189 A GB 580189A GB 1146444 A GB1146444 A GB 1146444A GB 1146444 A GB1146444 A GB 1146444A GB 580189 A GB580189 A GB 580189A
Authority
GB
United Kingdom
Prior art keywords
sulphur
per cent
loss
viscosity
reaction
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
Application number
GB1146444A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wilmington Chemical Corp
Original Assignee
Wilmington Chemical Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wilmington Chemical Corp filed Critical Wilmington Chemical Corp
Priority to GB1146444A priority Critical patent/GB580189A/en
Publication of GB580189A publication Critical patent/GB580189A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/02—Copolymers with acrylonitrile
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • 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
    • C08K5/01—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch

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)

Abstract

A vulcanizing agent for synthetic rubbers is made by reacting sulphur with a partly unsaturated hydrocarbon oil, tar, asphalt, neutralized petroleum acid sludge extract or the like having a boiling point above 160 DEG C. at 12 mm. mercury, at a temperature above the melting point of sulphur, at which hydrogen sulphide is evolved, e.g., 190 DEG -215 DEG C., until the sulphur loss is at least three per cent. of the final product. The hydrocarbon should contain about 90 per cent. carbon, and ten per cent. hydrogen, and be at least 40 per cent. soluble in concentrated or fuming sulphuric acid. The progress of the reaction is indicated by the sulphur loss, irrespective of the amount of sulphur originally present; five per cent. loss normally shows the reaction to be complete, although useful products are obtained with a loss of three to seven per cent. Stable, homogeneous products containing up to 35 per cent. of sulphur may be so obtained. Completion of the reaction is also accompanied by an increase of viscosity to at least four times that of the starting material. According to an example, 85 parts by weight of extract of acid sludge of lubricating oil having a boiling point of 250 DEG -360 DEG C. at 12 mm. mercury is mixed with 15 parts of sulphur and heated at 190 DEG C. for four hours, giving a product containing nine per cent. of sulphur available for vulcanization and having a viscosity of approximately 200 centipoises at 100 DEG C. Heating to 215 DEG C. for 30 mins. gives a product containing 8.6 per cent. sulphur and a viscosity of 110 centipoises. The product co-vulcanizes with the rubber.ALSO:A vulcanizing agent for synthetic rubbers is made by reacting sulphur with a partly unsaturated hydrocarbon oil, tar, asphalt, neutralized petroleum acid sludge extract or the like having a boiling point above 160 DEG C. at 12mm. mercury, at a temperature above the melting point of sulphur, at which hydrogen sulphide is evolved, e.g., 190-215 DEG C. until the sulphur loss is at least 3 per cent. of the final product. The hydrocarbon should contain about 90 per cent. carbon and 10 per cent. hydrogen, and be at least 40 per cent. soluble in concentrated or fuming sulphuric acid. The progress of the reaction is indicated by the sulphur loss, irrespective of the amount of sulphur originally present; 5 per cent. loss normally shows the reaction to be complete, although useful products are obtained with a loss of 3-7 per cent. Stable homogenous compositions containing up to 35 per cent. of sulphur may be so obtained. Completion of the reaction is also accompanied by an increase of viscosity to at least four times that of the starting material. According to an example, 85 parts of weight of extract of acid sludge from lubricating oil having a boiling point of 250-360 DEG C. at 12 mm. mercury is mixed with 15 parts of sulphur and heated at 190 DEG C. for four hours, giving a product containing 9 per cent. of sulphur available for vulcanization and having a viscosity of approximately 200 centipoises at 100 DEG C. Heating to 215 DEG C. for 30 min. gives a product containing 8.6 per cent. sulphur, and a viscosity of 110 centipoises. The product co-vulcanizes with the rubber.
GB1146444A 1944-06-15 1944-06-15 Improvements relating to sulphur-containing compounds or compositions and methods of making the same Expired GB580189A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1146444A GB580189A (en) 1944-06-15 1944-06-15 Improvements relating to sulphur-containing compounds or compositions and methods of making the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1146444A GB580189A (en) 1944-06-15 1944-06-15 Improvements relating to sulphur-containing compounds or compositions and methods of making the same

Publications (1)

Publication Number Publication Date
GB580189A true GB580189A (en) 1946-08-29

Family

ID=9986727

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1146444A Expired GB580189A (en) 1944-06-15 1944-06-15 Improvements relating to sulphur-containing compounds or compositions and methods of making the same

Country Status (1)

Country Link
GB (1) GB580189A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353978A (en) * 1964-08-14 1967-11-21 United States Steel Corp Self-extinguishing pitch foams

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353978A (en) * 1964-08-14 1967-11-21 United States Steel Corp Self-extinguishing pitch foams

Similar Documents

Publication Publication Date Title
US2542370A (en) Production of thiophosphites
GB580189A (en) Improvements relating to sulphur-containing compounds or compositions and methods of making the same
US1634924A (en) Accelerator for the vulcanization of rubber
Selker Reaction of Methyl Iodide with Sulfur Compounds
US1887156A (en) Insecticide and process of making the same
US2998451A (en) Unsaturated mercapto amines
US1349909A (en) Sulfur-terpene compound
GB642420A (en) An improved extreme pressure lubricant
GB642772A (en) Improvements relating to the refining of oils and motor fuels
GB323580A (en) Improvements in the manufacture and production of vulcanised rubber
US2491851A (en) Synthetic resin and process for making it
US1958402A (en) Process of treating acid sludge
GB580154A (en) An improved rubber substitute
GB427810A (en) Improvements in or relating to the production of esters of methacrylic acid
GB646711A (en) Improvements in or relating to a process of forming a highly reactive carbon, and the highly reactive carbon resulting from said process
GB581089A (en) Improvements relating to vulcanizable compositions and methods of making the same
GB574220A (en) Improvements in or relating to rubber substitutes and process for the manufacture thereof
GB434159A (en) Manufacture of tar products particularly for road construction
US1828172A (en) Sulphurized-phenols and process of making
GB432489A (en) Improvements in or relating to the production of liquid hydrocarbons by the thermal treatment of carbonaceous materials
GB594093A (en) Improvements in or relating to the production of compositions containing derivativesof balata resin or gutta-percha resin or similar resins and to products covered witha protective coating thereof
GB359291A (en) The manufacture of new motor spirit
US1828587A (en) Manufacture of factice and the like
GB560390A (en) Manufacture of a coal tar paint
US1418771A (en) Clayton w