GB891537A - Improved pelleting process - Google Patents
Improved pelleting processInfo
- Publication number
- GB891537A GB891537A GB334359A GB334359A GB891537A GB 891537 A GB891537 A GB 891537A GB 334359 A GB334359 A GB 334359A GB 334359 A GB334359 A GB 334359A GB 891537 A GB891537 A GB 891537A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polytetrafluoroethylene
- sulphenamide
- polymer
- binding agent
- disulphide
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/28—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using special binding agents
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Powdered organic chemical substances which are rubber accelerators, retarders, or antioxidants are shaped into pellets or granules by the use of a polymer of tetrafluoroethylene as binding agent. Substances specified are 2-mercapto benzthiazole, dibenzthiazyl disulphide, N-cyclohexylbenzthiazyl-2-sulphenamide, N-tertiary-butyl benzthiazyl-2-sulphenamide, N-tertiary-octylbenz thiazyl-2-sulphenamide, tetramethyl thiuram disulphide, tetraethyl thiuram disulphide, zinc diethyl p dithiocarbamate, diphenyl guanidine, di-o-tolyguanidine, and the zinc salt of 2-mercapto benzthiazole. The polymer may be polytetrafluoroethylene or a mixture thereof with a polymer of butadiene, isoprene, acrylonitrile, esters of acrylic or methacrylic acid, or vinyl acetate or with copolymers of conjugated diolefines and other olefinically unsaturated compounds. The binder may be introduced as an aqueous emulsion or dispersion into an aqueous slurry or suspension of the organic compound. Optional ingredients which may also be present are surfactants such as turkey red oil, alkylated \sH phenol/ethylene oxide condensates, sodium lauryl sulphate or sodium dodecyl benzene sulphonate; water-soluble polymers such as gelatin, casein, cellulose derivatives, polyvinyl methyl ether, polyvinyl pyrrolidone, sulphonated polystyrene, sodium polyacrylates, polyacrylamide, hydrolyzed polyacrylonitrile or hydrolyzed polyacrylic esters; and plasticizers such as dibutylphthalate or polypropylene adipate. The binding agent may be used in amounts of up to 12%, preferably 1-5%, by weight of the substance to be pelleted. In examples the binding agents are polytetrafluoroethylene; mixtures of butadiene/methyl methacrylate copolymers with polytetrafluoroethylene in which the copolymer predominates in amounts ranging from 3:1 to 15:1; and a mixture of 75% polyvinyl acetate and 25% polytetrafluoroethylene. According to the Provisional Specification polytetrafluoroethylene is of general application as a binding agent for pelleting powders. Specification 830,237 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB334359A GB891537A (en) | 1959-01-30 | 1959-01-30 | Improved pelleting process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB334359A GB891537A (en) | 1959-01-30 | 1959-01-30 | Improved pelleting process |
Publications (1)
Publication Number | Publication Date |
---|---|
GB891537A true GB891537A (en) | 1962-03-14 |
Family
ID=9756530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB334359A Expired GB891537A (en) | 1959-01-30 | 1959-01-30 | Improved pelleting process |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB891537A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4548960A (en) * | 1978-10-17 | 1985-10-22 | Unasco Pty. Limited | Pipe jointing compounds |
EP0169382A2 (en) * | 1984-06-25 | 1986-01-29 | The B.F. GOODRICH Company | Process for pelletization of powder materials and products therefrom |
US4865760A (en) * | 1988-04-06 | 1989-09-12 | Ppg Industries, Inc. | Calcium hypochlorite composition |
US4970020A (en) * | 1988-04-06 | 1990-11-13 | Ppg Industries, Inc. | Calcium hypochlorite composition |
US5009806A (en) * | 1988-04-06 | 1991-04-23 | Ppg Industries, Inc. | Calcium hypochlorite article |
US5205961A (en) * | 1991-04-18 | 1993-04-27 | Ppg Industries, Inc. | Granular calcium hypochlorite treatment process |
-
1959
- 1959-01-30 GB GB334359A patent/GB891537A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4548960A (en) * | 1978-10-17 | 1985-10-22 | Unasco Pty. Limited | Pipe jointing compounds |
EP0169382A2 (en) * | 1984-06-25 | 1986-01-29 | The B.F. GOODRICH Company | Process for pelletization of powder materials and products therefrom |
EP0169382A3 (en) * | 1984-06-25 | 1988-07-27 | The B.F. Goodrich Company | Process for pelletization of powder materials and products therefrom |
US4865760A (en) * | 1988-04-06 | 1989-09-12 | Ppg Industries, Inc. | Calcium hypochlorite composition |
US4970020A (en) * | 1988-04-06 | 1990-11-13 | Ppg Industries, Inc. | Calcium hypochlorite composition |
US5009806A (en) * | 1988-04-06 | 1991-04-23 | Ppg Industries, Inc. | Calcium hypochlorite article |
US5205961A (en) * | 1991-04-18 | 1993-04-27 | Ppg Industries, Inc. | Granular calcium hypochlorite treatment process |
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