GB732047A - Improvements in or relating to treatment of polymeric substances - Google Patents

Improvements in or relating to treatment of polymeric substances

Info

Publication number
GB732047A
GB732047A GB2637851A GB2637851A GB732047A GB 732047 A GB732047 A GB 732047A GB 2637851 A GB2637851 A GB 2637851A GB 2637851 A GB2637851 A GB 2637851A GB 732047 A GB732047 A GB 732047A
Authority
GB
United Kingdom
Prior art keywords
substance
action
rays
carbon atoms
rubber
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
GB2637851A
Inventor
Arthur Charlesby
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB2637851A priority Critical patent/GB732047A/en
Publication of GB732047A publication Critical patent/GB732047A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/04—After-treatment of articles without altering their shape; Apparatus therefor by wave energy or particle radiation, e.g. for curing or vulcanising preformed articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/085—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using gamma-ray

Landscapes

  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

A substance of high molecular weight having a structure of chains consisting largely or wholly of carbon atoms, a substantial proportion of which carbon atoms have one or two hydrogen atoms attached thereto, such as polythene, polystyrene, polyvinyl chloride, nylon, neoprene, polyvinyl acetate, polyvinyl alcohol and polymethyl methacrylate, is subjected to the action of ionizing radiation in amount sufficient to bring about increase in the resistance of the substance to the solvent action of organic solvents but insufficient to cause any appreciable change in the mechanical properties of the substance at ordinary temperatures. Irradiation may be with high-energy neutrons, gamma rays, X-rays, or high energy protons, electrons or helium ions. A convenient source of suitable radiation is a thermal nuclear reactor operating at a power level of about 3 mega-watts.ALSO:A substance of high molecular weight having a structure of chains consisting largely or wholly of carbon atoms, a substantial proportion of which carbon atoms have one or two hydrogen atoms attached thereto, such as rubber, gutta percha, rubber hydrochloride, paraffin wax, polythene, polystyrene, polyvinyl chloride, nylon, neoprene, polyvinyl acetate, polyvinyl alcohol, and polymethyl methacrylate, is subjected to the action of ionizing radiation in amount sufficient to bring about increase in the resistance of the substance to the solvent action of organic solvents but insufficient to cause any appreciable change in the mechanical properties of the substance at ordinary temperatures. Irradiation may be with high energy neutrons, gamma rays, X-rays or high-energy protons, electrons or helium ions. A convenient source of suitable radiations is a thermal nuclear reactor operating at a power level of about 3 megawatts.ALSO:Rubber, gutta percha or rubber hydrochloride is subjected to the action of ionizing radiation in amount sufficient to bring about increase in its resistance to the solvent action of organic solvents but insufficient to cause any appreciable change in its mechanical properties at ordinary temperatures. Irradiation may be with high energy neutrons, gamma rays, X-rays or high energy protons, electrons or helium ions. A convenient source of suitable radiations is a thermal nuclear reactor operating at a power level of about 3 megawatts.
GB2637851A 1951-11-10 1951-11-10 Improvements in or relating to treatment of polymeric substances Expired GB732047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2637851A GB732047A (en) 1951-11-10 1951-11-10 Improvements in or relating to treatment of polymeric substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2637851A GB732047A (en) 1951-11-10 1951-11-10 Improvements in or relating to treatment of polymeric substances

Publications (1)

Publication Number Publication Date
GB732047A true GB732047A (en) 1955-06-15

Family

ID=10242717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2637851A Expired GB732047A (en) 1951-11-10 1951-11-10 Improvements in or relating to treatment of polymeric substances

Country Status (1)

Country Link
GB (1) GB732047A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897092A (en) * 1955-12-16 1959-07-28 Gen Electric Polyethylene
US2897127A (en) * 1955-08-29 1959-07-28 Gen Electric Method of producing cross-linked polyvinyl alcohol
US2956899A (en) * 1956-10-18 1960-10-18 Du Pont Process of forming graft polymers on a shaped polymeric organic substrate
US2964454A (en) * 1956-08-31 1960-12-13 Swift & Co Improvements in irradiation polymerization
US3043760A (en) * 1957-03-27 1962-07-10 Siemens Ag Method for producing bodies of preferably non-linear polyatomic synthetics
US3053742A (en) * 1958-03-17 1962-09-11 Us Rubber Co Irradiation cross-linking of copolymers
US3072548A (en) * 1956-08-01 1963-01-08 Exxon Research Engineering Co Hydrocarbon radiochemical conversion process
US3084115A (en) * 1959-01-16 1963-04-02 Us Rubber Co Method of vulcanizing rubber
US3101306A (en) * 1957-04-11 1963-08-20 Saint Gobain Reticulated polyvinyl chloride and method of making same
US3145528A (en) * 1958-04-24 1964-08-25 Dal Mon Research Co Irradiated polymers
US3158991A (en) * 1958-04-24 1964-12-01 Dal Mon Research Co Irradiated polymeric propellants and process of rocket propulsion
US3160575A (en) * 1958-04-30 1964-12-08 Bayer Ag Process for the production of elastomers
US3203170A (en) * 1958-04-24 1965-08-31 Dal Mon Research Co Irradiated polymers and propulsion process
US3203169A (en) * 1958-04-24 1965-08-31 Dal Mon Research Co Irradiated polymers and propulsion process
US4935308A (en) * 1985-09-12 1990-06-19 Sanders Associates Composite material and method of making same
US4992335A (en) * 1985-09-12 1991-02-12 Sanders Associates, Inc. Composite material and method of making same
US5019453A (en) * 1985-09-12 1991-05-28 Guerra Richard J Composite material and method of making same

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897127A (en) * 1955-08-29 1959-07-28 Gen Electric Method of producing cross-linked polyvinyl alcohol
US2897092A (en) * 1955-12-16 1959-07-28 Gen Electric Polyethylene
US3072548A (en) * 1956-08-01 1963-01-08 Exxon Research Engineering Co Hydrocarbon radiochemical conversion process
US2964454A (en) * 1956-08-31 1960-12-13 Swift & Co Improvements in irradiation polymerization
US2956899A (en) * 1956-10-18 1960-10-18 Du Pont Process of forming graft polymers on a shaped polymeric organic substrate
US3043760A (en) * 1957-03-27 1962-07-10 Siemens Ag Method for producing bodies of preferably non-linear polyatomic synthetics
US3101306A (en) * 1957-04-11 1963-08-20 Saint Gobain Reticulated polyvinyl chloride and method of making same
US3053742A (en) * 1958-03-17 1962-09-11 Us Rubber Co Irradiation cross-linking of copolymers
US3145528A (en) * 1958-04-24 1964-08-25 Dal Mon Research Co Irradiated polymers
US3158991A (en) * 1958-04-24 1964-12-01 Dal Mon Research Co Irradiated polymeric propellants and process of rocket propulsion
US3203170A (en) * 1958-04-24 1965-08-31 Dal Mon Research Co Irradiated polymers and propulsion process
US3203169A (en) * 1958-04-24 1965-08-31 Dal Mon Research Co Irradiated polymers and propulsion process
US3160575A (en) * 1958-04-30 1964-12-08 Bayer Ag Process for the production of elastomers
US3084115A (en) * 1959-01-16 1963-04-02 Us Rubber Co Method of vulcanizing rubber
US4935308A (en) * 1985-09-12 1990-06-19 Sanders Associates Composite material and method of making same
US4992335A (en) * 1985-09-12 1991-02-12 Sanders Associates, Inc. Composite material and method of making same
US5019453A (en) * 1985-09-12 1991-05-28 Guerra Richard J Composite material and method of making same

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