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GB784037A - Improvements in polyethylene and articles made therefrom - Google Patents

Improvements in polyethylene and articles made therefrom

Info

Publication number
GB784037A
GB784037A GB4254/56A GB425456A GB784037A GB 784037 A GB784037 A GB 784037A GB 4254/56 A GB4254/56 A GB 4254/56A GB 425456 A GB425456 A GB 425456A GB 784037 A GB784037 A GB 784037A
Authority
GB
United Kingdom
Prior art keywords
polyethylene
made therefrom
articles made
irradiating
molecular weight
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
GB4254/56A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB784037A publication Critical patent/GB784037A/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
    • B29C35/0866—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation
    • B29C2035/0872—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation using ion-radiation, e.g. alpha-rays
    • 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
    • B29C35/0866—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation
    • B29C2035/0877—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation using electron radiation, e.g. beta-rays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2623/00—Use of polyalkenes or derivatives thereof for preformed parts, e.g. for inserts
    • B29K2623/04—Polymers of ethylene
    • B29K2623/06—PE, i.e. polyethylene

Landscapes

  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The stress cracking characteristics of polyethylene of viscosity average molecular weight above 16,000 are improved by irradiating it with high-energy radiation, preferably high-energy electrons, within the irradiation dose range of from 1 to 2.5 X 106 R.ALSO:The stress cracking characteristics of polyethylene of viscosity average molecular weight above 16,000 are improved by irradiating it with high energy radiation, preferably high energy electrons, within the irradiation dose range of from 1 to 2.5 X 106 R.
GB4254/56A 1955-02-21 1956-02-10 Improvements in polyethylene and articles made therefrom Expired GB784037A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US784037XA 1955-02-21 1955-02-21

Publications (1)

Publication Number Publication Date
GB784037A true GB784037A (en) 1957-10-02

Family

ID=22143816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4254/56A Expired GB784037A (en) 1955-02-21 1956-02-10 Improvements in polyethylene and articles made therefrom

Country Status (2)

Country Link
FR (1) FR1152119A (en)
GB (1) GB784037A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196009A (en) * 1986-08-18 1988-04-20 British Gas Plc Structures of plastics material
US5160464A (en) * 1983-12-09 1992-11-03 National Research Development Corporation Polymer irradiation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160464A (en) * 1983-12-09 1992-11-03 National Research Development Corporation Polymer irradiation
GB2196009A (en) * 1986-08-18 1988-04-20 British Gas Plc Structures of plastics material
GB2196009B (en) * 1986-08-18 1989-12-20 British Gas Plc Structures of plastics material

Also Published As

Publication number Publication date
FR1152119A (en) 1958-02-12

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